* [PATCH v6 1/8] media: qcom: camss: Flag which VFEs require a power-domain
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 2/8] media: qcom: camss: Convert to per-VFE pointer for power-domain linkages Bryan O'Donoghue
` (6 subsequent siblings)
7 siblings, 0 replies; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
At the moment we have some complex code for determining if a VFE requires a
power-domain attachment. Particularly discordant in this scheme is the
subtle reliance on VFE and VFE Lite declaration ordering in our resources.
VFE id is used to determine if a VFE is lite or not and consequently if a
VFE requires power-domain attachment. VFE Lite though is not a correct
delineation between power-domain and non power-domain state since early
SoCs have neither VFE Lite nor power-domains attached to VFEs.
Introduce has_pd to the VFE resource structure to allow the CAMSS code to
understand if it needs to try to attach a power-domain for a given VFE.
As a side-effect from this we no longer need to care about VFE Lite or
non-Lite or the id number associated with either and which order the
VFE/VFE Lite was declared in.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss.c | 8 ++++++++
drivers/media/platform/qcom/camss/camss.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 8e78dd8d5961e..ed01a3ac7a38e 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -278,6 +278,7 @@ static const struct camss_subdev_resources vfe_res_8x96[] = {
.reg = { "vfe0" },
.interrupt = { "vfe0" },
.line_num = 3,
+ .has_pd = true,
.ops = &vfe_ops_4_7
},
@@ -298,6 +299,7 @@ static const struct camss_subdev_resources vfe_res_8x96[] = {
.reg = { "vfe1" },
.interrupt = { "vfe1" },
.line_num = 3,
+ .has_pd = true,
.ops = &vfe_ops_4_7
}
};
@@ -468,6 +470,7 @@ static const struct camss_subdev_resources vfe_res_660[] = {
.reg = { "vfe0" },
.interrupt = { "vfe0" },
.line_num = 3,
+ .has_pd = true,
.ops = &vfe_ops_4_8
},
@@ -491,6 +494,7 @@ static const struct camss_subdev_resources vfe_res_660[] = {
.reg = { "vfe1" },
.interrupt = { "vfe1" },
.line_num = 3,
+ .has_pd = true,
.ops = &vfe_ops_4_8
}
};
@@ -658,6 +662,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
.reg = { "vfe0" },
.interrupt = { "vfe0" },
.line_num = 4,
+ .has_pd = true,
.ops = &vfe_ops_170
},
@@ -680,6 +685,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
.reg = { "vfe1" },
.interrupt = { "vfe1" },
.line_num = 4,
+ .has_pd = true,
.ops = &vfe_ops_170
},
@@ -840,6 +846,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
.reg = { "vfe0" },
.interrupt = { "vfe0" },
.line_num = 3,
+ .has_pd = true,
.ops = &vfe_ops_480
},
/* VFE1 */
@@ -860,6 +867,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
.reg = { "vfe1" },
.interrupt = { "vfe1" },
.line_num = 3,
+ .has_pd = true,
.ops = &vfe_ops_480
},
/* VFE2 (lite) */
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 8acad7321c09d..b854cff1774d4 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -49,6 +49,7 @@ struct camss_subdev_resources {
char *reg[CAMSS_RES_MAX];
char *interrupt[CAMSS_RES_MAX];
u8 line_num;
+ bool has_pd;
const void *ops;
};
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH v6 2/8] media: qcom: camss: Convert to per-VFE pointer for power-domain linkages
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 1/8] media: qcom: camss: Flag which VFEs require a power-domain Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 3/8] media: qcom: camss: Use common VFE pm_domain_on/pm_domain_off where applicable Bryan O'Donoghue
` (5 subsequent siblings)
7 siblings, 0 replies; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
Right now we use the top-level camss structure to provide pointers via
VFE id index back to genpd linkages.
In effect this hard-codes VFE indexes to power-domain indexes in the
dtsi and mandates a very particular ordering of power domains in the
dtsi, which bears no relationship to a real hardware dependency.
As a first step to rationalising the VFE power-domain code and breaking
the magic indexing in dtsi use per-VFE pointers to genpd linkages.
The top-level index in msm_vfe_subdev_init is still used to attain the
initial so no functional or logical change arises from this change.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss-vfe-170.c | 15 +++++++--------
drivers/media/platform/qcom/camss/camss-vfe-4-7.c | 15 +++++----------
drivers/media/platform/qcom/camss/camss-vfe-4-8.c | 13 +++++--------
drivers/media/platform/qcom/camss/camss-vfe-480.c | 15 +++++++--------
drivers/media/platform/qcom/camss/camss-vfe.c | 3 +++
drivers/media/platform/qcom/camss/camss-vfe.h | 2 ++
6 files changed, 29 insertions(+), 34 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-170.c b/drivers/media/platform/qcom/camss/camss-vfe-170.c
index 0b211fed12760..7451484317cc3 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-170.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-170.c
@@ -638,7 +638,7 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
if (vfe->id >= camss->res->vfe_num)
return;
- device_link_del(camss->genpd_link[vfe->id]);
+ device_link_del(vfe->genpd_link);
}
/*
@@ -648,16 +648,15 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
static int vfe_pm_domain_on(struct vfe_device *vfe)
{
struct camss *camss = vfe->camss;
- enum vfe_line_id id = vfe->id;
- if (id >= camss->res->vfe_num)
+ if (vfe->id >= camss->res->vfe_num)
return 0;
- camss->genpd_link[id] = device_link_add(camss->dev, camss->genpd[id],
- DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!camss->genpd_link[id])
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
+ DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_RPM_ACTIVE);
+ if (!vfe->genpd_link)
return -EINVAL;
return 0;
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
index b65ed0fef595e..2b4e7e039407b 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
@@ -1109,14 +1109,10 @@ static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
*/
static void vfe_pm_domain_off(struct vfe_device *vfe)
{
- struct camss *camss;
-
if (!vfe)
return;
- camss = vfe->camss;
-
- device_link_del(camss->genpd_link[vfe->id]);
+ device_link_del(vfe->genpd_link);
}
/*
@@ -1126,13 +1122,12 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
static int vfe_pm_domain_on(struct vfe_device *vfe)
{
struct camss *camss = vfe->camss;
- enum vfe_line_id id = vfe->id;
- camss->genpd_link[id] = device_link_add(camss->dev, camss->genpd[id], DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd, DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
- if (!camss->genpd_link[id]) {
- dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", id);
+ if (!vfe->genpd_link) {
+ dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", vfe->id);
return -EINVAL;
}
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
index 7b3805177f037..5e95343241304 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
@@ -1099,9 +1099,7 @@ static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
*/
static void vfe_pm_domain_off(struct vfe_device *vfe)
{
- struct camss *camss = vfe->camss;
-
- device_link_del(camss->genpd_link[vfe->id]);
+ device_link_del(vfe->genpd_link);
}
/*
@@ -1111,13 +1109,12 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
static int vfe_pm_domain_on(struct vfe_device *vfe)
{
struct camss *camss = vfe->camss;
- enum vfe_line_id id = vfe->id;
- camss->genpd_link[id] = device_link_add(camss->dev, camss->genpd[id], DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd, DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
- if (!camss->genpd_link[id]) {
- dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", id);
+ if (!vfe->genpd_link) {
+ dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", vfe->id);
return -EINVAL;
}
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-480.c b/drivers/media/platform/qcom/camss/camss-vfe-480.c
index f2368b77fc6d6..a70b8633bb3eb 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-480.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-480.c
@@ -463,7 +463,7 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
if (vfe->id >= camss->res->vfe_num)
return;
- device_link_del(camss->genpd_link[vfe->id]);
+ device_link_del(vfe->genpd_link);
}
/*
@@ -473,16 +473,15 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
static int vfe_pm_domain_on(struct vfe_device *vfe)
{
struct camss *camss = vfe->camss;
- enum vfe_line_id id = vfe->id;
- if (id >= camss->res->vfe_num)
+ if (vfe->id >= camss->res->vfe_num)
return 0;
- camss->genpd_link[id] = device_link_add(camss->dev, camss->genpd[id],
- DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!camss->genpd_link[id])
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
+ DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_RPM_ACTIVE);
+ if (!vfe->genpd_link)
return -EINVAL;
return 0;
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 4839e2cedfe58..94267b9974554 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1347,6 +1347,9 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
if (!res->line_num)
return -EINVAL;
+ if (res->has_pd)
+ vfe->genpd = camss->genpd[id];
+
vfe->line_num = res->line_num;
vfe->ops->subdev_init(dev, vfe);
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
index 09baded0dcdd6..c1c50023d4876 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.h
+++ b/drivers/media/platform/qcom/camss/camss-vfe.h
@@ -150,6 +150,8 @@ struct vfe_device {
const struct vfe_hw_ops_gen1 *ops_gen1;
struct vfe_isr_ops isr_ops;
struct camss_video_ops video_ops;
+ struct device *genpd;
+ struct device_link *genpd_link;
};
struct camss_subdev_resources;
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH v6 3/8] media: qcom: camss: Use common VFE pm_domain_on/pm_domain_off where applicable
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 1/8] media: qcom: camss: Flag which VFEs require a power-domain Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 2/8] media: qcom: camss: Convert to per-VFE pointer for power-domain linkages Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c Bryan O'Donoghue
` (4 subsequent siblings)
7 siblings, 0 replies; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
For the various versions of VFE we have a boiler-plate
pm_domain_on/pm_domain_off callback pair of the general form.
- Error check.
Not always done but applicable to all.
- device_link_add (DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME |
DL_FLAG_RPM_ACTIVE);
- Error check returning -EINVAL on error.
- Return 0
Reduce the pattern down to a common callback. VFE 4.1 is a special case
which to me also indicates that it is worthwhile maintaining an indirection
for the vfe_pm_domain_{on|off} for now.
Otherwise lets chuck out a bunch of needlessly replicated code.
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Suggested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss-vfe-170.c | 35 -----------------------
drivers/media/platform/qcom/camss/camss-vfe-4-1.c | 8 +++---
drivers/media/platform/qcom/camss/camss-vfe-4-7.c | 31 --------------------
drivers/media/platform/qcom/camss/camss-vfe-4-8.c | 28 ------------------
drivers/media/platform/qcom/camss/camss-vfe-480.c | 35 -----------------------
drivers/media/platform/qcom/camss/camss-vfe.c | 34 ++++++++++++++++++++++
drivers/media/platform/qcom/camss/camss-vfe.h | 12 ++++++++
7 files changed, 50 insertions(+), 133 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-170.c b/drivers/media/platform/qcom/camss/camss-vfe-170.c
index 7451484317cc3..795ac3815339a 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-170.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-170.c
@@ -627,41 +627,6 @@ static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
spin_unlock_irqrestore(&vfe->output_lock, flags);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return;
-
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return 0;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
- DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!vfe->genpd_link)
- return -EINVAL;
-
- return 0;
-}
-
/*
* vfe_queue_buffer - Add empty buffer
* @vid: Video device structure
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
index 2911e4126e7ad..ef6b34c915df1 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
@@ -936,7 +936,7 @@ static irqreturn_t vfe_isr(int irq, void *dev)
* vfe_pm_domain_off - Disable power domains specific to this VFE.
* @vfe: VFE Device
*/
-static void vfe_pm_domain_off(struct vfe_device *vfe)
+static void vfe_4_1_pm_domain_off(struct vfe_device *vfe)
{
/* nop */
}
@@ -945,7 +945,7 @@ static void vfe_pm_domain_off(struct vfe_device *vfe)
* vfe_pm_domain_on - Enable power domains specific to this VFE.
* @vfe: VFE Device
*/
-static int vfe_pm_domain_on(struct vfe_device *vfe)
+static int vfe_4_1_pm_domain_on(struct vfe_device *vfe)
{
return 0;
}
@@ -999,8 +999,8 @@ const struct vfe_hw_ops vfe_ops_4_1 = {
.hw_version = vfe_hw_version,
.isr_read = vfe_isr_read,
.isr = vfe_isr,
- .pm_domain_off = vfe_pm_domain_off,
- .pm_domain_on = vfe_pm_domain_on,
+ .pm_domain_off = vfe_4_1_pm_domain_off,
+ .pm_domain_on = vfe_4_1_pm_domain_on,
.reg_update_clear = vfe_reg_update_clear,
.reg_update = vfe_reg_update,
.subdev_init = vfe_subdev_init,
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
index 2b4e7e039407b..7655d22a9fda2 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
@@ -1103,37 +1103,6 @@ static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- if (!vfe)
- return;
-
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd, DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
-
- if (!vfe->genpd_link) {
- dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", vfe->id);
- return -EINVAL;
- }
-
- return 0;
-}
-
static void vfe_violation_read(struct vfe_device *vfe)
{
u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
index 5e95343241304..f52fa30f3853e 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
@@ -1093,34 +1093,6 @@ static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd, DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE);
-
- if (!vfe->genpd_link) {
- dev_err(vfe->camss->dev, "Failed to add VFE#%d to power domain\n", vfe->id);
- return -EINVAL;
- }
-
- return 0;
-}
-
static void vfe_violation_read(struct vfe_device *vfe)
{
u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-480.c b/drivers/media/platform/qcom/camss/camss-vfe-480.c
index a70b8633bb3eb..4652e8b4cff58 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-480.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-480.c
@@ -452,41 +452,6 @@ static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
spin_unlock_irqrestore(&vfe->output_lock, flags);
}
-/*
- * vfe_pm_domain_off - Disable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static void vfe_pm_domain_off(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return;
-
- device_link_del(vfe->genpd_link);
-}
-
-/*
- * vfe_pm_domain_on - Enable power domains specific to this VFE.
- * @vfe: VFE Device
- */
-static int vfe_pm_domain_on(struct vfe_device *vfe)
-{
- struct camss *camss = vfe->camss;
-
- if (vfe->id >= camss->res->vfe_num)
- return 0;
-
- vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
- DL_FLAG_STATELESS |
- DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!vfe->genpd_link)
- return -EINVAL;
-
- return 0;
-}
-
/*
* vfe_queue_buffer - Add empty buffer
* @vid: Video device structure
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 94267b9974554..5172eb5612a1c 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -474,6 +474,40 @@ void vfe_isr_reset_ack(struct vfe_device *vfe)
complete(&vfe->reset_complete);
}
+/*
+ * vfe_pm_domain_off - Disable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+void vfe_pm_domain_off(struct vfe_device *vfe)
+{
+ if (!vfe->genpd)
+ return;
+
+ device_link_del(vfe->genpd_link);
+ vfe->genpd_link = NULL;
+}
+
+/*
+ * vfe_pm_domain_on - Enable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+int vfe_pm_domain_on(struct vfe_device *vfe)
+{
+ struct camss *camss = vfe->camss;
+
+ if (!vfe->genpd)
+ return 0;
+
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
+ DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_RPM_ACTIVE);
+ if (!vfe->genpd_link)
+ return -EINVAL;
+
+ return 0;
+}
+
static int vfe_match_clock_names(struct vfe_device *vfe,
struct camss_clock *clock)
{
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
index c1c50023d4876..992a2103ec44c 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.h
+++ b/drivers/media/platform/qcom/camss/camss-vfe.h
@@ -203,6 +203,18 @@ int vfe_reset(struct vfe_device *vfe);
*/
int vfe_disable(struct vfe_line *line);
+/*
+ * vfe_pm_domain_off - Disable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+void vfe_pm_domain_off(struct vfe_device *vfe);
+
+/*
+ * vfe_pm_domain_on - Enable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+int vfe_pm_domain_on(struct vfe_device *vfe);
+
extern const struct vfe_hw_ops vfe_ops_4_1;
extern const struct vfe_hw_ops vfe_ops_4_7;
extern const struct vfe_hw_ops vfe_ops_4_8;
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
` (2 preceding siblings ...)
2023-11-23 17:03 ` [PATCH v6 3/8] media: qcom: camss: Use common VFE pm_domain_on/pm_domain_off where applicable Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-25 12:53 ` Konrad Dybcio
2023-11-23 17:03 ` [PATCH v6 5/8] media: qcom: camss: Add support for named power-domains Bryan O'Donoghue
` (3 subsequent siblings)
7 siblings, 1 reply; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
Moving the location of the hooks to VFE power domains has several
advantages.
1. Separation of concerns and functional decomposition.
vfe.c should be responsible for and know best how manage
power-domains for a VFE, excising from camss.c follows this
principle.
2. Embedding a pointer to genpd in struct camss_vfe{} meas that we can
dispense with a bunch of kmalloc array inside of camss.c.
3. Splitting up titan top gdsc from vfe/ife gdsc provides a base for
breaking up magic indexes in dtsi.
Suggested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss-vfe.c | 21 ++++++++-
drivers/media/platform/qcom/camss/camss-vfe.h | 2 +
drivers/media/platform/qcom/camss/camss.c | 67 ++++++++++++++-------------
drivers/media/platform/qcom/camss/camss.h | 4 +-
4 files changed, 59 insertions(+), 35 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 5172eb5612a1c..60c4730e7c9d1 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -14,6 +14,7 @@
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include <linux/spinlock_types.h>
#include <linux/spinlock.h>
@@ -1381,8 +1382,11 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
if (!res->line_num)
return -EINVAL;
- if (res->has_pd)
- vfe->genpd = camss->genpd[id];
+ if (res->has_pd) {
+ vfe->genpd = dev_pm_domain_attach_by_id(camss->dev, id);
+ if (IS_ERR(vfe->genpd))
+ return PTR_ERR(vfe->genpd);
+ }
vfe->line_num = res->line_num;
vfe->ops->subdev_init(dev, vfe);
@@ -1506,6 +1510,19 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
return 0;
}
+/*
+ * msm_vfe_genpd_cleanup - Cleanup VFE genpd linkages
+ * @vfe: VFE device
+ */
+void msm_vfe_genpd_cleanup(struct vfe_device *vfe)
+{
+ if (vfe->genpd_link)
+ device_link_del(vfe->genpd_link);
+
+ if (vfe->genpd)
+ dev_pm_domain_detach(vfe->genpd, true);
+}
+
/*
* vfe_link_setup - Setup VFE connections
* @entity: Pointer to media entity structure
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
index 992a2103ec44c..cdbe59d8d437e 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.h
+++ b/drivers/media/platform/qcom/camss/camss-vfe.h
@@ -159,6 +159,8 @@ struct camss_subdev_resources;
int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
const struct camss_subdev_resources *res, u8 id);
+void msm_vfe_genpd_cleanup(struct vfe_device *vfe);
+
int msm_vfe_register_entities(struct vfe_device *vfe,
struct v4l2_device *v4l2_dev);
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index ed01a3ac7a38e..35918cf837bdd 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -1486,7 +1486,9 @@ static const struct media_device_ops camss_media_ops = {
static int camss_configure_pd(struct camss *camss)
{
+ const struct camss_resources *res = camss->res;
struct device *dev = camss->dev;
+ int vfepd_num;
int i;
int ret;
@@ -1506,45 +1508,41 @@ static int camss_configure_pd(struct camss *camss)
if (camss->genpd_num == 1)
return 0;
- camss->genpd = devm_kmalloc_array(dev, camss->genpd_num,
- sizeof(*camss->genpd), GFP_KERNEL);
- if (!camss->genpd)
- return -ENOMEM;
+ /* count the # of VFEs which have flagged power-domain */
+ for (vfepd_num = i = 0; i < camss->vfe_total_num; i++) {
+ if (res->vfe_res[i].has_pd)
+ vfepd_num++;
+ }
- camss->genpd_link = devm_kmalloc_array(dev, camss->genpd_num,
- sizeof(*camss->genpd_link),
- GFP_KERNEL);
- if (!camss->genpd_link)
- return -ENOMEM;
+ /*
+ * If the number of power-domains is greater than the number of VFEs
+ * then the additional power-domain is for the entire CAMSS block.
+ */
+ if (!(camss->genpd_num > vfepd_num))
+ return 0;
/*
* VFE power domains are in the beginning of the list, and while all
* power domains should be attached, only if TITAN_TOP power domain is
* found in the list, it should be linked over here.
*/
- for (i = 0; i < camss->genpd_num; i++) {
- camss->genpd[i] = dev_pm_domain_attach_by_id(camss->dev, i);
- if (IS_ERR(camss->genpd[i])) {
- ret = PTR_ERR(camss->genpd[i]);
- goto fail_pm;
- }
+ camss->genpd = dev_pm_domain_attach_by_id(camss->dev, camss->genpd_num - 1);
+ if (IS_ERR(camss->genpd)) {
+ ret = PTR_ERR(camss->genpd);
+ goto fail_pm;
}
-
- if (i > camss->res->vfe_num) {
- camss->genpd_link[i - 1] = device_link_add(camss->dev, camss->genpd[i - 1],
- DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME |
- DL_FLAG_RPM_ACTIVE);
- if (!camss->genpd_link[i - 1]) {
- ret = -EINVAL;
- goto fail_pm;
- }
+ camss->genpd_link = device_link_add(camss->dev, camss->genpd,
+ DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME |
+ DL_FLAG_RPM_ACTIVE);
+ if (!camss->genpd_link) {
+ ret = -EINVAL;
+ goto fail_pm;
}
return 0;
fail_pm:
- for (--i ; i >= 0; i--)
- dev_pm_domain_detach(camss->genpd[i], true);
+ dev_pm_domain_detach(camss->genpd, true);
return ret;
}
@@ -1566,18 +1564,25 @@ static int camss_icc_get(struct camss *camss)
return 0;
}
-static void camss_genpd_cleanup(struct camss *camss)
+static void camss_genpd_subdevice_cleanup(struct camss *camss)
{
int i;
+ for (i = 0; i < camss->vfe_total_num; i++)
+ msm_vfe_genpd_cleanup(&camss->vfe[i]);
+}
+
+static void camss_genpd_cleanup(struct camss *camss)
+{
if (camss->genpd_num == 1)
return;
- if (camss->genpd_num > camss->res->vfe_num)
- device_link_del(camss->genpd_link[camss->genpd_num - 1]);
+ camss_genpd_subdevice_cleanup(camss);
+
+ if (camss->genpd_link)
+ device_link_del(camss->genpd_link);
- for (i = 0; i < camss->genpd_num; i++)
- dev_pm_domain_detach(camss->genpd[i], true);
+ dev_pm_domain_detach(camss->genpd, true);
}
/*
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index b854cff1774d4..1ba824a2cb76c 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -107,8 +107,8 @@ struct camss {
struct vfe_device *vfe;
atomic_t ref_count;
int genpd_num;
- struct device **genpd;
- struct device_link **genpd_link;
+ struct device *genpd;
+ struct device_link *genpd_link;
struct icc_path *icc_path[ICC_SM8250_COUNT];
const struct camss_resources *res;
unsigned int vfe_total_num;
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c
2023-11-23 17:03 ` [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c Bryan O'Donoghue
@ 2023-11-25 12:53 ` Konrad Dybcio
2023-11-25 12:54 ` Konrad Dybcio
0 siblings, 1 reply; 16+ messages in thread
From: Konrad Dybcio @ 2023-11-25 12:53 UTC (permalink / raw)
To: Bryan O'Donoghue, hverkuil-cisco, laurent.pinchart,
Robert Foss, Todor Tomov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
On 23.11.2023 18:03, Bryan O'Donoghue wrote:
> Moving the location of the hooks to VFE power domains has several
> advantages.
>
> 1. Separation of concerns and functional decomposition.
> vfe.c should be responsible for and know best how manage
> power-domains for a VFE, excising from camss.c follows this
> principle.
>
> 2. Embedding a pointer to genpd in struct camss_vfe{} meas that we can
> dispense with a bunch of kmalloc array inside of camss.c.
>
> 3. Splitting up titan top gdsc from vfe/ife gdsc provides a base for
> breaking up magic indexes in dtsi.
>
> Suggested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
> Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybciolinaro.org>
Konrad
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c
2023-11-25 12:53 ` Konrad Dybcio
@ 2023-11-25 12:54 ` Konrad Dybcio
0 siblings, 0 replies; 16+ messages in thread
From: Konrad Dybcio @ 2023-11-25 12:54 UTC (permalink / raw)
To: Bryan O'Donoghue, hverkuil-cisco, laurent.pinchart,
Robert Foss, Todor Tomov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
On 25.11.2023 13:53, Konrad Dybcio wrote:
> On 23.11.2023 18:03, Bryan O'Donoghue wrote:
>> Moving the location of the hooks to VFE power domains has several
>> advantages.
>>
>> 1. Separation of concerns and functional decomposition.
>> vfe.c should be responsible for and know best how manage
>> power-domains for a VFE, excising from camss.c follows this
>> principle.
>>
>> 2. Embedding a pointer to genpd in struct camss_vfe{} meas that we can
>> dispense with a bunch of kmalloc array inside of camss.c.
>>
>> 3. Splitting up titan top gdsc from vfe/ife gdsc provides a base for
>> breaking up magic indexes in dtsi.
>>
>> Suggested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
>> Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
>> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
>> ---
> Reviewed-by: Konrad Dybcio <konrad.dybciolinaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Konrad
^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v6 5/8] media: qcom: camss: Add support for named power-domains
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
` (3 preceding siblings ...)
2023-11-23 17:03 ` [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-12-06 11:35 ` Hans Verkuil
2023-11-23 17:03 ` [PATCH v6 6/8] media: qcom: camss: Flag VFE-lites to support more VFEs Bryan O'Donoghue
` (2 subsequent siblings)
7 siblings, 1 reply; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
Right now we use fixed indexes to assign power-domains, with a
requirement for the TOP GDSC to come last in the list.
Adding support for named power-domains means the declaration in the dtsi
can come in any order.
After this change we continue to support the old indexing - if a SoC
resource declaration or the in-use dtb doesn't declare power-domain names
we fall back to the default legacy indexing.
From this point on though new SoC additions should contain named
power-domains, eventually we will drop support for legacy indexing.
Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss-vfe.c | 24 +++++++++++++++++++++++-
drivers/media/platform/qcom/camss/camss.c | 26 +++++++++++++++++++++-----
drivers/media/platform/qcom/camss/camss.h | 2 ++
3 files changed, 46 insertions(+), 6 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 60c4730e7c9d1..083d1445a6e25 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1382,7 +1382,29 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
if (!res->line_num)
return -EINVAL;
- if (res->has_pd) {
+ /* Power domain */
+
+ if (res->pd_name) {
+ vfe->genpd = dev_pm_domain_attach_by_name(camss->dev,
+ res->pd_name);
+ if (IS_ERR(vfe->genpd)) {
+ ret = PTR_ERR(vfe->genpd);
+ return ret;
+ }
+ }
+
+ if (!vfe->genpd && res->has_pd) {
+ /*
+ * Legacy magic index.
+ * Requires
+ * power-domain = <VFE_X>,
+ * <VFE_Y>,
+ * <TITAN_TOP>
+ * id must correspondng to the index of the VFE which must
+ * come before the TOP GDSC. VFE Lite has no individually
+ * collapasible domain which is why id < vfe_num is a valid
+ * check.
+ */
vfe->genpd = dev_pm_domain_attach_by_id(camss->dev, id);
if (IS_ERR(vfe->genpd))
return PTR_ERR(vfe->genpd);
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 35918cf837bdd..f2d2317c38b5b 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -1522,12 +1522,28 @@ static int camss_configure_pd(struct camss *camss)
return 0;
/*
- * VFE power domains are in the beginning of the list, and while all
- * power domains should be attached, only if TITAN_TOP power domain is
- * found in the list, it should be linked over here.
+ * If a power-domain name is defined try to use it.
+ * It is possible we are running a new kernel with an old dtb so
+ * fallback to indexes even if a pd_name is defined but not found.
*/
- camss->genpd = dev_pm_domain_attach_by_id(camss->dev, camss->genpd_num - 1);
- if (IS_ERR(camss->genpd)) {
+ if (camss->res->pd_name) {
+ camss->genpd = dev_pm_domain_attach_by_name(camss->dev,
+ camss->res->pd_name);
+ if (IS_ERR(camss->genpd)) {
+ ret = PTR_ERR(camss->genpd);
+ goto fail_pm;
+ }
+ }
+
+ if (!camss->genpd) {
+ /*
+ * Legacy magic index. TITAN_TOP GDSC must be the last
+ * item in the power-domain list.
+ */
+ camss->genpd = dev_pm_domain_attach_by_id(camss->dev,
+ camss->genpd_num - 1);
+ }
+ if (IS_ERR_OR_NULL(camss->genpd)) {
ret = PTR_ERR(camss->genpd);
goto fail_pm;
}
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 1ba824a2cb76c..cd8186fe1797b 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -48,6 +48,7 @@ struct camss_subdev_resources {
u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX];
char *reg[CAMSS_RES_MAX];
char *interrupt[CAMSS_RES_MAX];
+ char *pd_name;
u8 line_num;
bool has_pd;
const void *ops;
@@ -84,6 +85,7 @@ enum icc_count {
struct camss_resources {
enum camss_version version;
+ const char *pd_name;
const struct camss_subdev_resources *csiphy_res;
const struct camss_subdev_resources *csid_res;
const struct camss_subdev_resources *ispif_res;
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v6 5/8] media: qcom: camss: Add support for named power-domains
2023-11-23 17:03 ` [PATCH v6 5/8] media: qcom: camss: Add support for named power-domains Bryan O'Donoghue
@ 2023-12-06 11:35 ` Hans Verkuil
2023-12-06 12:25 ` [PATCH v6.1] " Bryan O'Donoghue
2023-12-06 12:28 ` [PATCH v6 5/8] " Bryan O'Donoghue
0 siblings, 2 replies; 16+ messages in thread
From: Hans Verkuil @ 2023-12-06 11:35 UTC (permalink / raw)
To: Bryan O'Donoghue, laurent.pinchart, Robert Foss, Todor Tomov,
Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
On 23/11/2023 18:03, Bryan O'Donoghue wrote:
> Right now we use fixed indexes to assign power-domains, with a
> requirement for the TOP GDSC to come last in the list.
>
> Adding support for named power-domains means the declaration in the dtsi
> can come in any order.
>
> After this change we continue to support the old indexing - if a SoC
> resource declaration or the in-use dtb doesn't declare power-domain names
> we fall back to the default legacy indexing.
>
> From this point on though new SoC additions should contain named
> power-domains, eventually we will drop support for legacy indexing.
>
> Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
> drivers/media/platform/qcom/camss/camss-vfe.c | 24 +++++++++++++++++++++++-
> drivers/media/platform/qcom/camss/camss.c | 26 +++++++++++++++++++++-----
> drivers/media/platform/qcom/camss/camss.h | 2 ++
> 3 files changed, 46 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
> index 60c4730e7c9d1..083d1445a6e25 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.c
> @@ -1382,7 +1382,29 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
> if (!res->line_num)
> return -EINVAL;
>
> - if (res->has_pd) {
> + /* Power domain */
> +
> + if (res->pd_name) {
> + vfe->genpd = dev_pm_domain_attach_by_name(camss->dev,
> + res->pd_name);
> + if (IS_ERR(vfe->genpd)) {
> + ret = PTR_ERR(vfe->genpd);
> + return ret;
> + }
> + }
> +
> + if (!vfe->genpd && res->has_pd) {
> + /*
> + * Legacy magic index.
> + * Requires
> + * power-domain = <VFE_X>,
> + * <VFE_Y>,
> + * <TITAN_TOP>
> + * id must correspondng to the index of the VFE which must
> + * come before the TOP GDSC. VFE Lite has no individually
> + * collapasible domain which is why id < vfe_num is a valid
> + * check.
> + */
> vfe->genpd = dev_pm_domain_attach_by_id(camss->dev, id);
> if (IS_ERR(vfe->genpd))
> return PTR_ERR(vfe->genpd);
> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> index 35918cf837bdd..f2d2317c38b5b 100644
> --- a/drivers/media/platform/qcom/camss/camss.c
> +++ b/drivers/media/platform/qcom/camss/camss.c
> @@ -1522,12 +1522,28 @@ static int camss_configure_pd(struct camss *camss)
> return 0;
>
> /*
> - * VFE power domains are in the beginning of the list, and while all
> - * power domains should be attached, only if TITAN_TOP power domain is
> - * found in the list, it should be linked over here.
> + * If a power-domain name is defined try to use it.
> + * It is possible we are running a new kernel with an old dtb so
> + * fallback to indexes even if a pd_name is defined but not found.
> */
> - camss->genpd = dev_pm_domain_attach_by_id(camss->dev, camss->genpd_num - 1);
> - if (IS_ERR(camss->genpd)) {
> + if (camss->res->pd_name) {
> + camss->genpd = dev_pm_domain_attach_by_name(camss->dev,
> + camss->res->pd_name);
> + if (IS_ERR(camss->genpd)) {
> + ret = PTR_ERR(camss->genpd);
> + goto fail_pm;
> + }
> + }
> +
> + if (!camss->genpd) {
> + /*
> + * Legacy magic index. TITAN_TOP GDSC must be the last
> + * item in the power-domain list.
> + */
> + camss->genpd = dev_pm_domain_attach_by_id(camss->dev,
> + camss->genpd_num - 1);
> + }
> + if (IS_ERR_OR_NULL(camss->genpd)) {
> ret = PTR_ERR(camss->genpd);
I get this smatch warning here:
drivers/media/platform/qcom/camss/camss.c:1555 camss_configure_pd() warn: passing zero to 'PTR_ERR'
I'm not really sure what the intent is here.
If the fix is small, then I can change it myself, otherwise I need an updated patch.
Regards,
Hans
> goto fail_pm;
> }
> diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
> index 1ba824a2cb76c..cd8186fe1797b 100644
> --- a/drivers/media/platform/qcom/camss/camss.h
> +++ b/drivers/media/platform/qcom/camss/camss.h
> @@ -48,6 +48,7 @@ struct camss_subdev_resources {
> u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX];
> char *reg[CAMSS_RES_MAX];
> char *interrupt[CAMSS_RES_MAX];
> + char *pd_name;
> u8 line_num;
> bool has_pd;
> const void *ops;
> @@ -84,6 +85,7 @@ enum icc_count {
>
> struct camss_resources {
> enum camss_version version;
> + const char *pd_name;
> const struct camss_subdev_resources *csiphy_res;
> const struct camss_subdev_resources *csid_res;
> const struct camss_subdev_resources *ispif_res;
>
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH v6.1] media: qcom: camss: Add support for named power-domains
2023-12-06 11:35 ` Hans Verkuil
@ 2023-12-06 12:25 ` Bryan O'Donoghue
2023-12-06 12:28 ` [PATCH v6 5/8] " Bryan O'Donoghue
1 sibling, 0 replies; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-12-06 12:25 UTC (permalink / raw)
To: laurent.pinchart, rfoss, todor.too, agross, andersson,
konrad.dybcio, mchehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel, Bryan O'Donoghue
Right now we use fixed indexes to assign power-domains, with a
requirement for the TOP GDSC to come last in the list.
Adding support for named power-domains means the declaration in the dtsi
can come in any order.
After this change we continue to support the old indexing - if a SoC
resource declaration or the in-use dtb doesn't declare power-domain names
we fall back to the default legacy indexing.
From this point on though new SoC additions should contain named
power-domains, eventually we will drop support for legacy indexing.
Tested-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss-vfe.c | 24 +++++++++++++-
drivers/media/platform/qcom/camss/camss.c | 31 +++++++++++++++----
drivers/media/platform/qcom/camss/camss.h | 2 ++
3 files changed, 50 insertions(+), 7 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 60c4730e7c9d..083d1445a6e2 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1382,7 +1382,29 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
if (!res->line_num)
return -EINVAL;
- if (res->has_pd) {
+ /* Power domain */
+
+ if (res->pd_name) {
+ vfe->genpd = dev_pm_domain_attach_by_name(camss->dev,
+ res->pd_name);
+ if (IS_ERR(vfe->genpd)) {
+ ret = PTR_ERR(vfe->genpd);
+ return ret;
+ }
+ }
+
+ if (!vfe->genpd && res->has_pd) {
+ /*
+ * Legacy magic index.
+ * Requires
+ * power-domain = <VFE_X>,
+ * <VFE_Y>,
+ * <TITAN_TOP>
+ * id must correspondng to the index of the VFE which must
+ * come before the TOP GDSC. VFE Lite has no individually
+ * collapasible domain which is why id < vfe_num is a valid
+ * check.
+ */
vfe->genpd = dev_pm_domain_attach_by_id(camss->dev, id);
if (IS_ERR(vfe->genpd))
return PTR_ERR(vfe->genpd);
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 35918cf837bd..8de0e9e8d34b 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -1522,13 +1522,32 @@ static int camss_configure_pd(struct camss *camss)
return 0;
/*
- * VFE power domains are in the beginning of the list, and while all
- * power domains should be attached, only if TITAN_TOP power domain is
- * found in the list, it should be linked over here.
+ * If a power-domain name is defined try to use it.
+ * It is possible we are running a new kernel with an old dtb so
+ * fallback to indexes even if a pd_name is defined but not found.
*/
- camss->genpd = dev_pm_domain_attach_by_id(camss->dev, camss->genpd_num - 1);
- if (IS_ERR(camss->genpd)) {
- ret = PTR_ERR(camss->genpd);
+ if (camss->res->pd_name) {
+ camss->genpd = dev_pm_domain_attach_by_name(camss->dev,
+ camss->res->pd_name);
+ if (IS_ERR(camss->genpd)) {
+ ret = PTR_ERR(camss->genpd);
+ goto fail_pm;
+ }
+ }
+
+ if (!camss->genpd) {
+ /*
+ * Legacy magic index. TITAN_TOP GDSC must be the last
+ * item in the power-domain list.
+ */
+ camss->genpd = dev_pm_domain_attach_by_id(camss->dev,
+ camss->genpd_num - 1);
+ }
+ if (IS_ERR_OR_NULL(camss->genpd)) {
+ if (!camss->genpd)
+ ret = -ENODEV;
+ else
+ ret = PTR_ERR(camss->genpd);
goto fail_pm;
}
camss->genpd_link = device_link_add(camss->dev, camss->genpd,
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 1ba824a2cb76..cd8186fe1797 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -48,6 +48,7 @@ struct camss_subdev_resources {
u32 clock_rate[CAMSS_RES_MAX][CAMSS_RES_MAX];
char *reg[CAMSS_RES_MAX];
char *interrupt[CAMSS_RES_MAX];
+ char *pd_name;
u8 line_num;
bool has_pd;
const void *ops;
@@ -84,6 +85,7 @@ enum icc_count {
struct camss_resources {
enum camss_version version;
+ const char *pd_name;
const struct camss_subdev_resources *csiphy_res;
const struct camss_subdev_resources *csid_res;
const struct camss_subdev_resources *ispif_res;
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v6 5/8] media: qcom: camss: Add support for named power-domains
2023-12-06 11:35 ` Hans Verkuil
2023-12-06 12:25 ` [PATCH v6.1] " Bryan O'Donoghue
@ 2023-12-06 12:28 ` Bryan O'Donoghue
1 sibling, 0 replies; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-12-06 12:28 UTC (permalink / raw)
To: Hans Verkuil, laurent.pinchart, Robert Foss, Todor Tomov,
Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
On 06/12/2023 12:35, Hans Verkuil wrote:
>> + if (IS_ERR_OR_NULL(camss->genpd)) {
>> ret = PTR_ERR(camss->genpd);
> I get this smatch warning here:
>
> drivers/media/platform/qcom/camss/camss.c:1555 camss_configure_pd() warn: passing zero to 'PTR_ERR'
>
> I'm not really sure what the intent is here.
>
> If the fix is small, then I can change it myself, otherwise I need an updated patch.
>
> Regards,
>
> Hans
Update sent
^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v6 6/8] media: qcom: camss: Flag VFE-lites to support more VFEs
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
` (4 preceding siblings ...)
2023-11-23 17:03 ` [PATCH v6 5/8] media: qcom: camss: Add support for named power-domains Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 7/8] media: qcom: camss: Flag CSID-lites to support more CSIDs Bryan O'Donoghue
2023-11-23 17:03 ` [PATCH v6 8/8] media: qcom: camss: Add sm8250 named power-domain support Bryan O'Donoghue
7 siblings, 0 replies; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel, kernel test robot
From: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Some platforms such as SC7280 have three VFEs and two VFE-lites. Current
code has hard-coded two as the maximum number of VFEs. Remove the
hard-coded maximum number of VFEs to handle all possible combinations of
VFEs and VFE-lites.
Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202311200405.h6G4L9oe-lkp@intel.com
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss-vfe-480.c | 33 +++++++++++------------
drivers/media/platform/qcom/camss/camss-vfe.c | 5 ++++
drivers/media/platform/qcom/camss/camss-vfe.h | 10 +++++++
drivers/media/platform/qcom/camss/camss.c | 26 +++++++++---------
drivers/media/platform/qcom/camss/camss.h | 3 +--
5 files changed, 44 insertions(+), 33 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-480.c b/drivers/media/platform/qcom/camss/camss-vfe-480.c
index 4652e8b4cff58..dc2735476c823 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-480.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-480.c
@@ -15,31 +15,28 @@
#include "camss.h"
#include "camss-vfe.h"
-/* VFE 2/3 are lite and have a different register layout */
-#define IS_LITE (vfe->id >= 2 ? 1 : 0)
-
#define VFE_HW_VERSION (0x00)
-#define VFE_GLOBAL_RESET_CMD (IS_LITE ? 0x0c : 0x1c)
-#define GLOBAL_RESET_HW_AND_REG (IS_LITE ? BIT(1) : BIT(0))
+#define VFE_GLOBAL_RESET_CMD (vfe_is_lite(vfe) ? 0x0c : 0x1c)
+#define GLOBAL_RESET_HW_AND_REG (vfe_is_lite(vfe) ? BIT(1) : BIT(0))
-#define VFE_REG_UPDATE_CMD (IS_LITE ? 0x20 : 0x34)
+#define VFE_REG_UPDATE_CMD (vfe_is_lite(vfe) ? 0x20 : 0x34)
static inline int reg_update_rdi(struct vfe_device *vfe, int n)
{
- return IS_LITE ? BIT(n) : BIT(1 + (n));
+ return vfe_is_lite(vfe) ? BIT(n) : BIT(1 + (n));
}
#define REG_UPDATE_RDI reg_update_rdi
-#define VFE_IRQ_CMD (IS_LITE ? 0x24 : 0x38)
+#define VFE_IRQ_CMD (vfe_is_lite(vfe) ? 0x24 : 0x38)
#define IRQ_CMD_GLOBAL_CLEAR BIT(0)
-#define VFE_IRQ_MASK(n) ((IS_LITE ? 0x28 : 0x3c) + (n) * 4)
-#define IRQ_MASK_0_RESET_ACK (IS_LITE ? BIT(17) : BIT(0))
-#define IRQ_MASK_0_BUS_TOP_IRQ (IS_LITE ? BIT(4) : BIT(7))
-#define VFE_IRQ_CLEAR(n) ((IS_LITE ? 0x34 : 0x48) + (n) * 4)
-#define VFE_IRQ_STATUS(n) ((IS_LITE ? 0x40 : 0x54) + (n) * 4)
+#define VFE_IRQ_MASK(n) ((vfe_is_lite(vfe) ? 0x28 : 0x3c) + (n) * 4)
+#define IRQ_MASK_0_RESET_ACK (vfe_is_lite(vfe) ? BIT(17) : BIT(0))
+#define IRQ_MASK_0_BUS_TOP_IRQ (vfe_is_lite(vfe) ? BIT(4) : BIT(7))
+#define VFE_IRQ_CLEAR(n) ((vfe_is_lite(vfe) ? 0x34 : 0x48) + (n) * 4)
+#define VFE_IRQ_STATUS(n) ((vfe_is_lite(vfe) ? 0x40 : 0x54) + (n) * 4)
-#define BUS_REG_BASE (IS_LITE ? 0x1a00 : 0xaa00)
+#define BUS_REG_BASE (vfe_is_lite(vfe) ? 0x1a00 : 0xaa00)
#define VFE_BUS_WM_CGC_OVERRIDE (BUS_REG_BASE + 0x08)
#define WM_CGC_OVERRIDE_ALL (0x3FFFFFF)
@@ -49,13 +46,13 @@ static inline int reg_update_rdi(struct vfe_device *vfe, int n)
#define VFE_BUS_IRQ_MASK(n) (BUS_REG_BASE + 0x18 + (n) * 4)
static inline int bus_irq_mask_0_rdi_rup(struct vfe_device *vfe, int n)
{
- return IS_LITE ? BIT(n) : BIT(3 + (n));
+ return vfe_is_lite(vfe) ? BIT(n) : BIT(3 + (n));
}
#define BUS_IRQ_MASK_0_RDI_RUP bus_irq_mask_0_rdi_rup
static inline int bus_irq_mask_0_comp_done(struct vfe_device *vfe, int n)
{
- return IS_LITE ? BIT(4 + (n)) : BIT(6 + (n));
+ return vfe_is_lite(vfe) ? BIT(4 + (n)) : BIT(6 + (n));
}
#define BUS_IRQ_MASK_0_COMP_DONE bus_irq_mask_0_comp_done
@@ -90,8 +87,8 @@ static inline int bus_irq_mask_0_comp_done(struct vfe_device *vfe, int n)
/* for titan 480, each bus client is hardcoded to a specific path
* and each bus client is part of a hardcoded "comp group"
*/
-#define RDI_WM(n) ((IS_LITE ? 0 : 23) + (n))
-#define RDI_COMP_GROUP(n) ((IS_LITE ? 0 : 11) + (n))
+#define RDI_WM(n) ((vfe_is_lite(vfe) ? 0 : 23) + (n))
+#define RDI_COMP_GROUP(n) ((vfe_is_lite(vfe) ? 0 : 11) + (n))
#define MAX_VFE_OUTPUT_LINES 4
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 083d1445a6e25..b6ec0dc425b2d 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -1739,3 +1739,8 @@ void msm_vfe_unregister_entities(struct vfe_device *vfe)
media_entity_cleanup(&sd->entity);
}
}
+
+bool vfe_is_lite(struct vfe_device *vfe)
+{
+ return vfe->camss->res->vfe_res[vfe->id].is_lite;
+}
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
index cdbe59d8d437e..0572c9b08e112 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.h
+++ b/drivers/media/platform/qcom/camss/camss-vfe.h
@@ -226,4 +226,14 @@ extern const struct vfe_hw_ops vfe_ops_480;
int vfe_get(struct vfe_device *vfe);
void vfe_put(struct vfe_device *vfe);
+/*
+ * vfe_is_lite - Return if VFE is VFE lite.
+ * @vfe: VFE Device
+ *
+ * Some VFE lites have a different register layout.
+ *
+ * Return whether VFE is VFE lite
+ */
+bool vfe_is_lite(struct vfe_device *vfe);
+
#endif /* QC_MSM_CAMSS_VFE_H */
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index f2d2317c38b5b..7c49654a12964 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -706,6 +706,7 @@ static const struct camss_subdev_resources vfe_res_845[] = {
{ 384000000 } },
.reg = { "vfe_lite" },
.interrupt = { "vfe_lite" },
+ .is_lite = true,
.line_num = 4,
.ops = &vfe_ops_170
}
@@ -886,6 +887,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
{ 0 } },
.reg = { "vfe_lite0" },
.interrupt = { "vfe_lite0" },
+ .is_lite = true,
.line_num = 4,
.ops = &vfe_ops_480
},
@@ -905,6 +907,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
{ 0 } },
.reg = { "vfe_lite1" },
.interrupt = { "vfe_lite1" },
+ .is_lite = true,
.line_num = 4,
.ops = &vfe_ops_480
},
@@ -1204,7 +1207,7 @@ static int camss_init_subdevices(struct camss *camss)
}
/* note: SM8250 requires VFE to be initialized before CSID */
- for (i = 0; i < camss->vfe_total_num; i++) {
+ for (i = 0; i < camss->res->vfe_num; i++) {
ret = msm_vfe_subdev_init(camss, &camss->vfe[i],
&res->vfe_res[i], i);
if (ret < 0) {
@@ -1276,7 +1279,7 @@ static int camss_register_entities(struct camss *camss)
goto err_reg_ispif;
}
- for (i = 0; i < camss->vfe_total_num; i++) {
+ for (i = 0; i < camss->res->vfe_num; i++) {
ret = msm_vfe_register_entities(&camss->vfe[i],
&camss->v4l2_dev);
if (ret < 0) {
@@ -1348,7 +1351,7 @@ static int camss_register_entities(struct camss *camss)
}
} else {
for (i = 0; i < camss->res->csid_num; i++)
- for (k = 0; k < camss->vfe_total_num; k++)
+ for (k = 0; k < camss->res->vfe_num; k++)
for (j = 0; j < camss->vfe[k].line_num; j++) {
struct v4l2_subdev *csid = &camss->csid[i].subdev;
struct v4l2_subdev *vfe = &camss->vfe[k].line[j].subdev;
@@ -1372,7 +1375,7 @@ static int camss_register_entities(struct camss *camss)
return 0;
err_link:
- i = camss->vfe_total_num;
+ i = camss->res->vfe_num;
err_reg_vfe:
for (i--; i >= 0; i--)
msm_vfe_unregister_entities(&camss->vfe[i]);
@@ -1411,7 +1414,7 @@ static void camss_unregister_entities(struct camss *camss)
msm_ispif_unregister_entities(camss->ispif);
- for (i = 0; i < camss->vfe_total_num; i++)
+ for (i = 0; i < camss->res->vfe_num; i++)
msm_vfe_unregister_entities(&camss->vfe[i]);
}
@@ -1509,7 +1512,7 @@ static int camss_configure_pd(struct camss *camss)
return 0;
/* count the # of VFEs which have flagged power-domain */
- for (vfepd_num = i = 0; i < camss->vfe_total_num; i++) {
+ for (vfepd_num = i = 0; i < camss->res->vfe_num; i++) {
if (res->vfe_res[i].has_pd)
vfepd_num++;
}
@@ -1584,7 +1587,7 @@ static void camss_genpd_subdevice_cleanup(struct camss *camss)
{
int i;
- for (i = 0; i < camss->vfe_total_num; i++)
+ for (i = 0; i < camss->res->vfe_num; i++)
msm_vfe_genpd_cleanup(&camss->vfe[i]);
}
@@ -1641,8 +1644,7 @@ static int camss_probe(struct platform_device *pdev)
return -ENOMEM;
}
- camss->vfe_total_num = camss->res->vfe_num + camss->res->vfe_lite_num;
- camss->vfe = devm_kcalloc(dev, camss->vfe_total_num,
+ camss->vfe = devm_kcalloc(dev, camss->res->vfe_num,
sizeof(*camss->vfe), GFP_KERNEL);
if (!camss->vfe)
return -ENOMEM;
@@ -1800,8 +1802,7 @@ static const struct camss_resources sdm845_resources = {
.vfe_res = vfe_res_845,
.csiphy_num = ARRAY_SIZE(csiphy_res_845),
.csid_num = ARRAY_SIZE(csid_res_845),
- .vfe_num = 2,
- .vfe_lite_num = 1,
+ .vfe_num = ARRAY_SIZE(vfe_res_845),
};
static const struct camss_resources sm8250_resources = {
@@ -1813,8 +1814,7 @@ static const struct camss_resources sm8250_resources = {
.icc_path_num = ARRAY_SIZE(icc_res_sm8250),
.csiphy_num = ARRAY_SIZE(csiphy_res_8250),
.csid_num = ARRAY_SIZE(csid_res_8250),
- .vfe_num = 2,
- .vfe_lite_num = 2,
+ .vfe_num = ARRAY_SIZE(vfe_res_8250),
};
static const struct of_device_id camss_dt_match[] = {
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index cd8186fe1797b..a0c2dcc779f05 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -51,6 +51,7 @@ struct camss_subdev_resources {
char *pd_name;
u8 line_num;
bool has_pd;
+ bool is_lite;
const void *ops;
};
@@ -95,7 +96,6 @@ struct camss_resources {
const unsigned int csiphy_num;
const unsigned int csid_num;
const unsigned int vfe_num;
- const unsigned int vfe_lite_num;
};
struct camss {
@@ -113,7 +113,6 @@ struct camss {
struct device_link *genpd_link;
struct icc_path *icc_path[ICC_SM8250_COUNT];
const struct camss_resources *res;
- unsigned int vfe_total_num;
};
struct camss_camera_interface {
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* [PATCH v6 7/8] media: qcom: camss: Flag CSID-lites to support more CSIDs
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
` (5 preceding siblings ...)
2023-11-23 17:03 ` [PATCH v6 6/8] media: qcom: camss: Flag VFE-lites to support more VFEs Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-25 12:49 ` Konrad Dybcio
2023-11-23 17:03 ` [PATCH v6 8/8] media: qcom: camss: Add sm8250 named power-domain support Bryan O'Donoghue
7 siblings, 1 reply; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
From: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Some platforms such as SC7280 have 3 CSIDs and 2 CSID-lites but current
code has hardcoded 2 as the maximum number of CSIDs. Remove the hardcoded
maximum number of VFEs to handle all possible combinations of CSIDs and
CSID-lites.
Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
.../media/platform/qcom/camss/camss-csid-gen2.c | 31 +++++++++++-----------
drivers/media/platform/qcom/camss/camss-csid.c | 5 ++++
drivers/media/platform/qcom/camss/camss-csid.h | 7 +++++
drivers/media/platform/qcom/camss/camss.c | 3 +++
4 files changed, 30 insertions(+), 16 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen2.c b/drivers/media/platform/qcom/camss/camss-csid-gen2.c
index 05ff5fa8095a8..b11de4797ccae 100644
--- a/drivers/media/platform/qcom/camss/camss-csid-gen2.c
+++ b/drivers/media/platform/qcom/camss/camss-csid-gen2.c
@@ -21,7 +21,6 @@
* interface support. As a result of that it has an
* alternate register layout.
*/
-#define IS_LITE (csid->id >= 2 ? 1 : 0)
#define CSID_HW_VERSION 0x0
#define HW_VERSION_STEPPING 0
@@ -35,13 +34,13 @@
#define CSID_CSI2_RX_IRQ_MASK 0x24
#define CSID_CSI2_RX_IRQ_CLEAR 0x28
-#define CSID_CSI2_RDIN_IRQ_STATUS(rdi) ((IS_LITE ? 0x30 : 0x40) \
+#define CSID_CSI2_RDIN_IRQ_STATUS(rdi) ((csid_is_lite(csid) ? 0x30 : 0x40) \
+ 0x10 * (rdi))
-#define CSID_CSI2_RDIN_IRQ_MASK(rdi) ((IS_LITE ? 0x34 : 0x44) \
+#define CSID_CSI2_RDIN_IRQ_MASK(rdi) ((csid_is_lite(csid) ? 0x34 : 0x44) \
+ 0x10 * (rdi))
-#define CSID_CSI2_RDIN_IRQ_CLEAR(rdi) ((IS_LITE ? 0x38 : 0x48) \
+#define CSID_CSI2_RDIN_IRQ_CLEAR(rdi) ((csid_is_lite(csid) ? 0x38 : 0x48) \
+ 0x10 * (rdi))
-#define CSID_CSI2_RDIN_IRQ_SET(rdi) ((IS_LITE ? 0x3C : 0x4C) \
+#define CSID_CSI2_RDIN_IRQ_SET(rdi) ((csid_is_lite(csid) ? 0x3C : 0x4C) \
+ 0x10 * (rdi))
#define CSID_TOP_IRQ_STATUS 0x70
@@ -73,7 +72,7 @@
#define CGC_MODE_DYNAMIC_GATING 0
#define CGC_MODE_ALWAYS_ON 1
-#define CSID_RDI_CFG0(rdi) ((IS_LITE ? 0x200 : 0x300) \
+#define CSID_RDI_CFG0(rdi) ((csid_is_lite(csid) ? 0x200 : 0x300) \
+ 0x100 * (rdi))
#define RDI_CFG0_BYTE_CNTR_EN 0
#define RDI_CFG0_FORMAT_MEASURE_EN 1
@@ -98,32 +97,32 @@
#define RDI_CFG0_PACKING_FORMAT 30
#define RDI_CFG0_ENABLE 31
-#define CSID_RDI_CFG1(rdi) ((IS_LITE ? 0x204 : 0x304)\
+#define CSID_RDI_CFG1(rdi) ((csid_is_lite(csid) ? 0x204 : 0x304)\
+ 0x100 * (rdi))
#define RDI_CFG1_TIMESTAMP_STB_SEL 0
-#define CSID_RDI_CTRL(rdi) ((IS_LITE ? 0x208 : 0x308)\
+#define CSID_RDI_CTRL(rdi) ((csid_is_lite(csid) ? 0x208 : 0x308)\
+ 0x100 * (rdi))
#define RDI_CTRL_HALT_CMD 0
#define HALT_CMD_HALT_AT_FRAME_BOUNDARY 0
#define HALT_CMD_RESUME_AT_FRAME_BOUNDARY 1
#define RDI_CTRL_HALT_MODE 2
-#define CSID_RDI_FRM_DROP_PATTERN(rdi) ((IS_LITE ? 0x20C : 0x30C)\
+#define CSID_RDI_FRM_DROP_PATTERN(rdi) ((csid_is_lite(csid) ? 0x20C : 0x30C)\
+ 0x100 * (rdi))
-#define CSID_RDI_FRM_DROP_PERIOD(rdi) ((IS_LITE ? 0x210 : 0x310)\
+#define CSID_RDI_FRM_DROP_PERIOD(rdi) ((csid_is_lite(csid) ? 0x210 : 0x310)\
+ 0x100 * (rdi))
-#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi) ((IS_LITE ? 0x214 : 0x314)\
+#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi) ((csid_is_lite(csid) ? 0x214 : 0x314)\
+ 0x100 * (rdi))
-#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi) ((IS_LITE ? 0x218 : 0x318)\
+#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi) ((csid_is_lite(csid) ? 0x218 : 0x318)\
+ 0x100 * (rdi))
-#define CSID_RDI_RPP_PIX_DROP_PATTERN(rdi) ((IS_LITE ? 0x224 : 0x324)\
+#define CSID_RDI_RPP_PIX_DROP_PATTERN(rdi) ((csid_is_lite(csid) ? 0x224 : 0x324)\
+ 0x100 * (rdi))
-#define CSID_RDI_RPP_PIX_DROP_PERIOD(rdi) ((IS_LITE ? 0x228 : 0x328)\
+#define CSID_RDI_RPP_PIX_DROP_PERIOD(rdi) ((csid_is_lite(csid) ? 0x228 : 0x328)\
+ 0x100 * (rdi))
-#define CSID_RDI_RPP_LINE_DROP_PATTERN(rdi) ((IS_LITE ? 0x22C : 0x32C)\
+#define CSID_RDI_RPP_LINE_DROP_PATTERN(rdi) ((csid_is_lite(csid) ? 0x22C : 0x32C)\
+ 0x100 * (rdi))
-#define CSID_RDI_RPP_LINE_DROP_PERIOD(rdi) ((IS_LITE ? 0x230 : 0x330)\
+#define CSID_RDI_RPP_LINE_DROP_PERIOD(rdi) ((csid_is_lite(csid) ? 0x230 : 0x330)\
+ 0x100 * (rdi))
#define CSID_TPG_CTRL 0x600
diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c
index 95873f988f7e2..d393618ed54cb 100644
--- a/drivers/media/platform/qcom/camss/camss-csid.c
+++ b/drivers/media/platform/qcom/camss/camss-csid.c
@@ -897,3 +897,8 @@ void msm_csid_unregister_entity(struct csid_device *csid)
media_entity_cleanup(&csid->subdev.entity);
v4l2_ctrl_handler_free(&csid->ctrls);
}
+
+inline bool csid_is_lite(struct csid_device *csid)
+{
+ return csid->camss->res->csid_res[csid->id].is_lite;
+}
diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
index 30d94eb2eb041..fddccb69da13a 100644
--- a/drivers/media/platform/qcom/camss/camss-csid.h
+++ b/drivers/media/platform/qcom/camss/camss-csid.h
@@ -215,5 +215,12 @@ extern const struct csid_hw_ops csid_ops_4_1;
extern const struct csid_hw_ops csid_ops_4_7;
extern const struct csid_hw_ops csid_ops_gen2;
+/*
+ * csid_is_lite - Check if CSID is CSID lite.
+ * @csid: CSID Device
+ *
+ * Return whether CSID is CSID lite
+ */
+bool csid_is_lite(struct csid_device *csid);
#endif /* QC_MSM_CAMSS_CSID_H */
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 7c49654a12964..942db0dffa59f 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -638,6 +638,7 @@ static const struct camss_subdev_resources csid_res_845[] = {
{ 384000000 } },
.reg = { "csid2" },
.interrupt = { "csid2" },
+ .is_lite = true,
.ops = &csid_ops_gen2
}
};
@@ -812,6 +813,7 @@ static const struct camss_subdev_resources csid_res_8250[] = {
{ 0 } },
.reg = { "csid2" },
.interrupt = { "csid2" },
+ .is_lite = true,
.ops = &csid_ops_gen2
},
/* CSID3 */
@@ -824,6 +826,7 @@ static const struct camss_subdev_resources csid_res_8250[] = {
{ 0 } },
.reg = { "csid3" },
.interrupt = { "csid3" },
+ .is_lite = true,
.ops = &csid_ops_gen2
}
};
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v6 7/8] media: qcom: camss: Flag CSID-lites to support more CSIDs
2023-11-23 17:03 ` [PATCH v6 7/8] media: qcom: camss: Flag CSID-lites to support more CSIDs Bryan O'Donoghue
@ 2023-11-25 12:49 ` Konrad Dybcio
0 siblings, 0 replies; 16+ messages in thread
From: Konrad Dybcio @ 2023-11-25 12:49 UTC (permalink / raw)
To: Bryan O'Donoghue, hverkuil-cisco, laurent.pinchart,
Robert Foss, Todor Tomov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
On 23.11.2023 18:03, Bryan O'Donoghue wrote:
> From: Matti Lehtimäki <matti.lehtimaki@gmail.com>
>
> Some platforms such as SC7280 have 3 CSIDs and 2 CSID-lites but current
> code has hardcoded 2 as the maximum number of CSIDs. Remove the hardcoded
> maximum number of VFEs to handle all possible combinations of CSIDs and
> CSID-lites.
>
> Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Konrad
^ permalink raw reply [flat|nested] 16+ messages in thread
* [PATCH v6 8/8] media: qcom: camss: Add sm8250 named power-domain support
2023-11-23 17:02 [PATCH v6 0/8] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
` (6 preceding siblings ...)
2023-11-23 17:03 ` [PATCH v6 7/8] media: qcom: camss: Flag CSID-lites to support more CSIDs Bryan O'Donoghue
@ 2023-11-23 17:03 ` Bryan O'Donoghue
2023-11-27 11:25 ` Konrad Dybcio
7 siblings, 1 reply; 16+ messages in thread
From: Bryan O'Donoghue @ 2023-11-23 17:03 UTC (permalink / raw)
To: hverkuil-cisco, laurent.pinchart, Robert Foss, Todor Tomov,
Bryan O'Donoghue, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
Declare power-domain names "top", "ife0" and "ife1" eponymously for the
power-domains TITAN_TOP_GDSC, IFE_0_GDSC and IFE_1_GDSC respectively.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
drivers/media/platform/qcom/camss/camss.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 942db0dffa59f..3bb23fd29959c 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -849,6 +849,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
{ 0 } },
.reg = { "vfe0" },
.interrupt = { "vfe0" },
+ .pd_name = "ife0",
.line_num = 3,
.has_pd = true,
.ops = &vfe_ops_480
@@ -870,6 +871,7 @@ static const struct camss_subdev_resources vfe_res_8250[] = {
{ 0 } },
.reg = { "vfe1" },
.interrupt = { "vfe1" },
+ .pd_name = "ife1",
.line_num = 3,
.has_pd = true,
.ops = &vfe_ops_480
@@ -1810,6 +1812,7 @@ static const struct camss_resources sdm845_resources = {
static const struct camss_resources sm8250_resources = {
.version = CAMSS_8250,
+ .pd_name = "top",
.csiphy_res = csiphy_res_8250,
.csid_res = csid_res_8250,
.vfe_res = vfe_res_8250,
--
2.42.0
^ permalink raw reply [flat|nested] 16+ messages in thread* Re: [PATCH v6 8/8] media: qcom: camss: Add sm8250 named power-domain support
2023-11-23 17:03 ` [PATCH v6 8/8] media: qcom: camss: Add sm8250 named power-domain support Bryan O'Donoghue
@ 2023-11-27 11:25 ` Konrad Dybcio
0 siblings, 0 replies; 16+ messages in thread
From: Konrad Dybcio @ 2023-11-27 11:25 UTC (permalink / raw)
To: Bryan O'Donoghue, hverkuil-cisco, laurent.pinchart,
Robert Foss, Todor Tomov, Andy Gross, Bjorn Andersson,
Mauro Carvalho Chehab, matti.lehtimaki, quic_grosikop
Cc: linux-media, linux-arm-msm, linux-kernel
On 23.11.2023 18:03, Bryan O'Donoghue wrote:
> Declare power-domain names "top", "ife0" and "ife1" eponymously for the
> power-domains TITAN_TOP_GDSC, IFE_0_GDSC and IFE_1_GDSC respectively.
>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
Not sure if this single case is just for presentation or actually
meant to be merged as part of this, but either way:
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Konrad
^ permalink raw reply [flat|nested] 16+ messages in thread