mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
* [PATCH v2] soc: qcom: ocmem: Add OCMEM hardware version print
@ 2023-05-23 20:32 Luca Weiss
  2023-05-26 19:39 ` Konrad Dybcio
  0 siblings, 1 reply; 4+ messages in thread
From: Luca Weiss @ 2023-05-23 20:32 UTC (permalink / raw)
  To: ~postmarketos/upstreaming, phone-devel, Andy Gross,
	Bjorn Andersson, Konrad Dybcio, Brian Masney
  Cc: linux-arm-msm, linux-kernel, Luca Weiss

It might be useful to know what hardware version of the OCMEM block the
SoC contains. Add a debug print for that.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
---
This patch is depends on [0] but could also be applied in the other
order, if conflicts are resolved.

[0] https://lore.kernel.org/linux-arm-msm/20230506-msm8226-ocmem-v1-1-3e24e2724f01@z3ntu.xyz/
---
Changes in v2:
- Use FIELD_GET macros for getting correct bits from register (take
  wording from mdp5: major, minor, step which hopefully is sort of
  accurate)
- Link to v1: https://lore.kernel.org/r/20230509-ocmem-hwver-v1-1-b83ece3f2168@z3ntu.xyz
---
 drivers/soc/qcom/ocmem.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/soc/qcom/ocmem.c b/drivers/soc/qcom/ocmem.c
index c3e78411c637..9f7c3348cbb9 100644
--- a/drivers/soc/qcom/ocmem.c
+++ b/drivers/soc/qcom/ocmem.c
@@ -76,6 +76,10 @@ struct ocmem {
 #define OCMEM_REG_GFX_MPU_START			0x00001004
 #define OCMEM_REG_GFX_MPU_END			0x00001008
 
+#define OCMEM_HW_VERSION_MAJOR(val)		FIELD_GET(GENMASK(31, 28), val)
+#define OCMEM_HW_VERSION_MINOR(val)		FIELD_GET(GENMASK(27, 16), val)
+#define OCMEM_HW_VERSION_STEP(val)		FIELD_GET(GENMASK(15, 0), val)
+
 #define OCMEM_HW_PROFILE_NUM_PORTS(val)		FIELD_GET(0x0000000f, (val))
 #define OCMEM_HW_PROFILE_NUM_MACROS(val)	FIELD_GET(0x00003f00, (val))
 
@@ -355,6 +359,11 @@ static int ocmem_dev_probe(struct platform_device *pdev)
 		}
 	}
 
+	reg = ocmem_read(ocmem, OCMEM_REG_HW_VERSION);
+	dev_dbg(dev, "OCMEM hardware version: %ld.%ld.%ld\n",
+		OCMEM_HW_VERSION_MAJOR(reg), OCMEM_HW_VERSION_MINOR(reg),
+		OCMEM_HW_VERSION_STEP(reg));
+
 	reg = ocmem_read(ocmem, OCMEM_REG_HW_PROFILE);
 	ocmem->num_ports = OCMEM_HW_PROFILE_NUM_PORTS(reg);
 	ocmem->num_macros = OCMEM_HW_PROFILE_NUM_MACROS(reg);

---
base-commit: 8705151771af822ac794b44504cd72eebc423499
change-id: 20230509-ocmem-hwver-99bcb33b028b

Best regards,
-- 
Luca Weiss <luca@z3ntu.xyz>


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2023-05-29  9:30 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-05-23 20:32 [PATCH v2] soc: qcom: ocmem: Add OCMEM hardware version print Luca Weiss
2023-05-26 19:39 ` Konrad Dybcio
2023-05-29  8:38   ` Luca Weiss
2023-05-29  9:30     ` Konrad Dybcio

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®