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[188.141.3.146]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-af635aca9e8sm418331766b.113.2025.07.28.07.10.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 28 Jul 2025 07:10:09 -0700 (PDT) Message-ID: Date: Mon, 28 Jul 2025 15:10:07 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 8/9] media: qcom: camss: Add support for VFE 690 To: Vikram Sharma , rfoss@kernel.org, todor.too@gmail.com, mchehab@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andersson@kernel.org, konradybcio@kernel.org, hverkuil-cisco@xs4all.nl, cros-qcom-dts-watchers@chromium.org, catalin.marinas@arm.com, will@kernel.org Cc: linux-arm-kernel@lists.infradead.org, quic_svankada@quicinc.com, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250703171938.3606998-1-quic_vikramsa@quicinc.com> <20250703171938.3606998-9-quic_vikramsa@quicinc.com> From: Bryan O'Donoghue Content-Language: en-US In-Reply-To: <20250703171938.3606998-9-quic_vikramsa@quicinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 03/07/2025 18:19, Vikram Sharma wrote: > Add support for VFE found on SA8775P (Titan 690). This VFE is > different from vfe 780 w.r.t few register offsets. > It supports two full and five lite VFE. > > Co-developed-by: Suresh Vankadara > Signed-off-by: Suresh Vankadara > Signed-off-by: Vikram Sharma > --- > .../platform/qcom/camss/camss-vfe-gen3.c | 67 +++++-- > drivers/media/platform/qcom/camss/camss-vfe.c | 5 +- > drivers/media/platform/qcom/camss/camss.c | 189 ++++++++++++++++++ > 3 files changed, 242 insertions(+), 19 deletions(-) > > diff --git a/drivers/media/platform/qcom/camss/camss-vfe-gen3.c b/drivers/media/platform/qcom/camss/camss-vfe-gen3.c > index 93d16b0951e9..a5eddc8c76ae 100644 > --- a/drivers/media/platform/qcom/camss/camss-vfe-gen3.c > +++ b/drivers/media/platform/qcom/camss/camss-vfe-gen3.c > @@ -1,6 +1,6 @@ > // SPDX-License-Identifier: GPL-2.0 > /* > - * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module gen3 > + * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module gen2 (SA8755P/SM8550) > * > * Copyright (c) 2024 Qualcomm Technologies, Inc. > */ > @@ -12,13 +12,41 @@ > #include "camss.h" > #include "camss-vfe.h" > > -#define BUS_REG_BASE (vfe_is_lite(vfe) ? 0x200 : 0xC00) > +#define IS_VFE_690(vfe) \ > + (vfe->camss->res->version == CAMSS_8775P ? true : false) > + Same comment. The "true : false" is a tautology, redundant. > +#define BUS_REG_BASE_690 \ > + (vfe_is_lite(vfe) ? 0x480 : 0x400) > +#define BUS_REG_BASE_780 \ > + (vfe_is_lite(vfe) ? 0x200 : 0xC00) > +#define BUS_REG_BASE \ > + (IS_VFE_690(vfe) ? BUS_REG_BASE_690 : BUS_REG_BASE_780) > + > +#define VFE_TOP_CORE_CFG (0x24) > + > +#define VFE_BUS_WM_TEST_BUS_CTRL_690 (BUS_REG_BASE + 0xFC) > +#define VFE_BUS_WM_TEST_BUS_CTRL_780 (BUS_REG_BASE + 0xDC) > +#define VFE_BUS_WM_TEST_BUS_CTRL \ > + (IS_VFE_690(vfe) ? VFE_BUS_WM_TEST_BUS_CTRL_690 \ > + : VFE_BUS_WM_TEST_BUS_CTRL_780) > +/* > + * Bus client mapping: > + * > + * Full VFE: > + * VFE_690: 16 = RDI0, 17 = RDI1, 18 = RDI2 > + * VFE_780: 23 = RDI0, 24 = RDI1, 25 = RDI2 > + * > + * VFE LITE: > + * VFE_690 : 0 = RDI0, 1 = RDI1, 2 = RDI2, 3 = RDI3, 4 = RDI4, 5 = RDI5 > + * VFE_780 : 0 = RDI0, 1 = RDI1, 2 = RDI2, 3 = RDI3, 4 = RDI4 > + */ > +#define RDI_WM_690(n) ((vfe_is_lite(vfe) ? 0x0 : 0x10) + (n)) > +#define RDI_WM_780(n) ((vfe_is_lite(vfe) ? 0x0 : 0x17) + (n)) > +#define RDI_WM(n) (IS_VFE_690(vfe) ? RDI_WM_690(n) : RDI_WM_780(n)) > > #define VFE_BUS_WM_CGC_OVERRIDE (BUS_REG_BASE + 0x08) > #define WM_CGC_OVERRIDE_ALL (0x7FFFFFF) > > -#define VFE_BUS_WM_TEST_BUS_CTRL (BUS_REG_BASE + 0xDC) > - > #define VFE_BUS_WM_CFG(n) (BUS_REG_BASE + 0x200 + (n) * 0x100) > #define WM_CFG_EN BIT(0) > #define WM_VIR_FRM_EN BIT(1) > @@ -39,17 +67,6 @@ > #define VFE_BUS_WM_MMU_PREFETCH_CFG(n) (BUS_REG_BASE + 0x260 + (n) * 0x100) > #define VFE_BUS_WM_MMU_PREFETCH_MAX_OFFSET(n) (BUS_REG_BASE + 0x264 + (n) * 0x100) > > -/* > - * Bus client mapping: > - * > - * Full VFE: > - * 23 = RDI0, 24 = RDI1, 25 = RDI2 > - * > - * VFE LITE: > - * 0 = RDI0, 1 = RDI1, 2 = RDI3, 4 = RDI4 > - */ > -#define RDI_WM(n) ((vfe_is_lite(vfe) ? 0x0 : 0x17) + (n)) > - > static void vfe_wm_start(struct vfe_device *vfe, u8 wm, struct vfe_line *line) > { > struct v4l2_pix_format_mplane *pix = > @@ -62,14 +79,23 @@ static void vfe_wm_start(struct vfe_device *vfe, u8 wm, struct vfe_line *line) > > writel(0x0, vfe->base + VFE_BUS_WM_TEST_BUS_CTRL); > > - writel(ALIGN(pix->plane_fmt[0].bytesperline, 16) * pix->height >> 8, > - vfe->base + VFE_BUS_WM_FRAME_INCR(wm)); > + if (IS_VFE_690(vfe)) > + writel(ALIGN(pix->plane_fmt[0].bytesperline, 16) * pix->height, > + vfe->base + VFE_BUS_WM_FRAME_INCR(wm)); > + else > + writel(ALIGN(pix->plane_fmt[0].bytesperline, 16) * pix->height >> 8, > + vfe->base + VFE_BUS_WM_FRAME_INCR(wm)); > + > writel((WM_IMAGE_CFG_0_DEFAULT_WIDTH & 0xFFFF), > vfe->base + VFE_BUS_WM_IMAGE_CFG_0(wm)); > writel(WM_IMAGE_CFG_2_DEFAULT_STRIDE, > vfe->base + VFE_BUS_WM_IMAGE_CFG_2(wm)); > writel(0, vfe->base + VFE_BUS_WM_PACKER_CFG(wm)); > > + /* TOP CORE CFG */ > + if (IS_VFE_690(vfe)) > + writel(0x600000, vfe->base + VFE_TOP_CORE_CFG); #define BIT(22) SOME_THING #define BIT(21) SOME_OTHER_THING writel(SOME_THING | SOME_OTHER_THING, ...); Its only two bits so please document. > + > /* no dropped frames, one irq per frame */ > writel(0, vfe->base + VFE_BUS_WM_FRAMEDROP_PERIOD(wm)); > writel(1, vfe->base + VFE_BUS_WM_FRAMEDROP_PATTERN(wm)); > @@ -92,7 +118,12 @@ static void vfe_wm_update(struct vfe_device *vfe, u8 wm, u32 addr, > struct vfe_line *line) > { > wm = RDI_WM(wm); > - writel((addr >> 8) & 0xFFFFFFFF, vfe->base + VFE_BUS_WM_IMAGE_ADDR(wm)); > + > + if (IS_VFE_690(vfe)) > + writel(addr, vfe->base + VFE_BUS_WM_IMAGE_ADDR(wm)); > + else > + writel((addr >> 8) & 0xFFFFFFFF, vfe->base + > + VFE_BUS_WM_IMAGE_ADDR(wm)); No need to define the bits here 0xFFFFFFFF is obvious. > > dev_dbg(vfe->camss->dev, "wm:%d, image buf addr:0x%x\n", > wm, addr); > diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c > index 4bca6c3abaff..99cbe09343f2 100644 > --- a/drivers/media/platform/qcom/camss/camss-vfe.c > +++ b/drivers/media/platform/qcom/camss/camss-vfe.c > @@ -346,6 +346,7 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code, > case CAMSS_8280XP: > case CAMSS_845: > case CAMSS_8550: > + case CAMSS_8775P: > case CAMSS_X1E80100: > switch (sink_code) { > case MEDIA_BUS_FMT_YUYV8_1X16: > @@ -910,7 +911,8 @@ static int vfe_match_clock_names(struct vfe_device *vfe, > > return (!strcmp(clock->name, vfe_name) || > !strcmp(clock->name, vfe_lite_name) || > - !strcmp(clock->name, "vfe_lite")); > + !strcmp(clock->name, "vfe_lite") || > + !strcmp(clock->name, "camnoc_axi")); > } > > /* > @@ -1974,6 +1976,7 @@ static int vfe_bpl_align(struct vfe_device *vfe) > case CAMSS_8280XP: > case CAMSS_845: > case CAMSS_8550: > + case CAMSS_8775P: > case CAMSS_X1E80100: > ret = 16; > break; > diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c > index b2398196b9ff..3a11c0a98eb1 100644 > --- a/drivers/media/platform/qcom/camss/camss.c > +++ b/drivers/media/platform/qcom/camss/camss.c > @@ -2709,6 +2709,195 @@ static const struct camss_subdev_resources csid_res_8775p[] = { > }, > }; > > +static const struct camss_subdev_resources vfe_res_8775p[] = { > + /* VFE0 */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe0", "vfe0", "vfe0_fast_ahb", > + "cpas_ahb", "gcc_axi_hf", "gcc_axi_sf", > + "core_ahb", "cpas_fast_ahb_clk", "camnoc_axi", > + "icp_ahb"}, Five AHB clocks - plus three separate AXI clocks ? I'm not against this list but, please take the time to pick through this and decide if all of these are really necessary for your SoC. > + .clock_rate = { > + { 0 }, > + { 480000000 }, > + { 300000000, 400000000 }, > + { 300000000, 400000000 }, > + { 0 }, > + { 0 }, > + { 0, 80000000 }, > + { 300000000, 400000000 }, > + { 400000000 }, > + { 0 }, > + }, > + > + .reg = { "vfe0" }, > + .interrupt = { "vfe0" }, > + .vfe = { > + .line_num = 3, > + .is_lite = false, > + .has_pd = false, > + .pd_name = NULL, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > + /* VFE1 */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe1", "vfe1", "vfe1_fast_ahb", > + "cpas_ahb", "gcc_axi_hf", "gcc_axi_sf", > + "core_ahb", "cpas_fast_ahb_clk", "camnoc_axi", > + "icp_ahb"}, > + .clock_rate = { > + { 0 }, > + { 480000000 }, > + { 300000000, 400000000 }, > + { 300000000, 400000000 }, > + { 0 }, > + { 0 }, > + { 0, 80000000 }, > + { 300000000, 400000000 }, > + { 400000000 }, > + { 0 }, > + }, > + > + .reg = { "vfe1" }, > + .interrupt = { "vfe1" }, > + .vfe = { > + .line_num = 3, > + .is_lite = false, > + .has_pd = false, > + .pd_name = NULL, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > + /* VFE2 (lite) */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe_lite", "vfe_lite_ahb", > + "vfe_lite_csid", "vfe_lite_cphy_rx", > + "vfe_lite"}, > + .clock_rate = { > + { 0, 0, 0, 0 }, > + { 300000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 480000000, 600000000, 600000000, 600000000 }, > + }, > + .reg = { "vfe_lite0" }, > + .interrupt = { "vfe_lite0" }, > + .vfe = { > + .line_num = 4, > + .is_lite = true, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > + /* VFE3 (lite) */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe_lite", "vfe_lite_ahb", > + "vfe_lite_csid", "vfe_lite_cphy_rx", > + "vfe_lite"}, > + .clock_rate = { > + { 0, 0, 0, 0 }, > + { 300000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 480000000, 600000000, 600000000, 600000000 }, > + }, > + .reg = { "vfe_lite1" }, > + .interrupt = { "vfe_lite1" }, > + .vfe = { > + .line_num = 4, > + .is_lite = true, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > + /* VFE4 (lite) */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe_lite", "vfe_lite_ahb", > + "vfe_lite_csid", "vfe_lite_cphy_rx", > + "vfe_lite"}, > + .clock_rate = { > + { 0, 0, 0, 0 }, > + { 300000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 480000000, 600000000, 600000000, 600000000 }, > + }, > + .reg = { "vfe_lite2" }, > + .interrupt = { "vfe_lite2" }, > + .vfe = { > + .line_num = 4, > + .is_lite = true, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > + /* VFE5 (lite) */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe_lite", "vfe_lite_ahb", > + "vfe_lite_csid", "vfe_lite_cphy_rx", > + "vfe_lite"}, > + .clock_rate = { > + { 0, 0, 0, 0 }, > + { 300000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 480000000, 600000000, 600000000, 600000000 }, > + }, > + .reg = { "vfe_lite3" }, > + .interrupt = { "vfe_lite3" }, > + .vfe = { > + .line_num = 4, > + .is_lite = true, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > + /* VFE6 (lite) */ > + { > + .regulators = {}, > + > + .clock = { "cpas_vfe_lite", "vfe_lite_ahb", > + "vfe_lite_csid", "vfe_lite_cphy_rx", > + "vfe_lite"}, > + .clock_rate = { > + { 0, 0, 0, 0 }, > + { 300000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 400000000, 400000000, 400000000, 400000000 }, > + { 480000000, 600000000, 600000000, 600000000 }, > + }, > + .reg = { "vfe_lite4" }, > + .interrupt = { "vfe_lite4" }, > + .vfe = { > + .line_num = 4, > + .is_lite = true, > + .hw_ops = &vfe_ops_gen3, > + .formats_rdi = &vfe_formats_rdi_845, > + .formats_pix = &vfe_formats_pix_845 > + } > + }, > +}; > + > static const struct resources_icc icc_res_sa8775p[] = { > { > .name = "ahb", ---bod