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Message-Id: <20260113-sm8750-camss-v2-5-e5487b98eada@oss.qualcomm.com>
Date: Tue, 13 Jan 2026 02:28:31 -0800
From: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
To: Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
jeyaprakash.soundrapandian@....qualcomm.com,
Vijay Kumar Tumati <vijay.tumati@....qualcomm.com>,
Hangxiang Ma <hangxiang.ma@....qualcomm.com>,
Atiya Kailany <atiya.kailany@....qualcomm.com>
Subject: [PATCH v2 5/5] media: qcom: camss: vfe: Add support for VFE 980
Add support for Video Front End (VFE) that is on the SM8750 SoCs, which
is the same as VFE used in Kaanapali. VFE gen4 has support for VFE 980.
This change limits SM8750 VFE output lines to 3 for now as constrained
by the CAMSS driver framework.
Co-developed-by: Atiya Kailany <atiya.kailany@....qualcomm.com>
Signed-off-by: Atiya Kailany <atiya.kailany@....qualcomm.com>
Signed-off-by: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
---
drivers/media/platform/qcom/camss/camss-vfe-gen4.c | 10 +-
drivers/media/platform/qcom/camss/camss-vfe.c | 2 +
drivers/media/platform/qcom/camss/camss.c | 135 +++++++++++++++++++++
3 files changed, 144 insertions(+), 3 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-vfe-gen4.c b/drivers/media/platform/qcom/camss/camss-vfe-gen4.c
index d73d70898710..46d8e61b9bac 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe-gen4.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe-gen4.c
@@ -13,8 +13,12 @@
#include "camss.h"
#include "camss-vfe.h"
-/* VFE-gen4 Bus Register Base Addresses */
-#define BUS_REG_BASE (vfe_is_lite(vfe) ? 0x800 : 0x1000)
+#define IS_VFE_980(vfe) ((vfe)->camss->res->version == CAMSS_8750)
+
+#define BUS_REG_BASE_980 (vfe_is_lite(vfe) ? 0x200 : 0x800)
+#define BUS_REG_BASE_1080 (vfe_is_lite(vfe) ? 0x800 : 0x1000)
+#define BUS_REG_BASE \
+ (IS_VFE_980(vfe) ? BUS_REG_BASE_980 : BUS_REG_BASE_1080)
#define VFE_BUS_WM_CGC_OVERRIDE (BUS_REG_BASE + 0x08)
#define WM_CGC_OVERRIDE_ALL (0x7FFFFFF)
@@ -55,7 +59,7 @@
* DISPLAY_DS2_C 6
* FD_Y 7
* FD_C 8
- * PIXEL_RAW 9
+ * RAW_OUT(1080)/IR_OUT(980) 9
* STATS_AEC_BG 10
* STATS_AEC_BHIST 11
* STATS_TINTLESS_BG 12
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 399be8b70fed..b8aa4b7d1a8d 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -350,6 +350,7 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
case CAMSS_845:
case CAMSS_8550:
case CAMSS_8650:
+ case CAMSS_8750:
case CAMSS_8775P:
case CAMSS_KAANAPALI:
case CAMSS_X1E80100:
@@ -2012,6 +2013,7 @@ static int vfe_bpl_align(struct vfe_device *vfe)
case CAMSS_845:
case CAMSS_8550:
case CAMSS_8650:
+ case CAMSS_8750:
case CAMSS_8775P:
case CAMSS_KAANAPALI:
case CAMSS_X1E80100:
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index c52e6f7b6294..1e33d42eb550 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -4262,6 +4262,139 @@ static const struct camss_subdev_resources csid_res_8750[] = {
}
};
+static const struct camss_subdev_resources vfe_res_8750[] = {
+ /* VFE0 - TFE Full */
+ {
+ .clock = { "gcc_axi_hf", "vfe0_fast_ahb", "vfe0",
+ "camnoc_rt_vfe0", "camnoc_rt_vfe1", "camnoc_rt_vfe2",
+ "camnoc_rt_axi", "camnoc_nrt_axi", "qdss_debug_xo" },
+ .clock_rate = { { 0 },
+ { 0 },
+ { 360280000, 480000000, 630000000, 716000000,
+ 833000000 },
+ { 0 },
+ { 0 },
+ { 0 },
+ { 200000000, 300000000, 400000000, 480000000 },
+ { 0 },
+ { 0 } },
+ .reg = { "vfe0" },
+ .interrupt = { "vfe0" },
+ .vfe = {
+ .line_num = 3,
+ .is_lite = false,
+ .reg_update_after_csid_config = true,
+ .has_pd = true,
+ .pd_name = "ife0",
+ .hw_ops = &vfe_ops_gen4,
+ .formats_rdi = &vfe_formats_rdi_845,
+ .formats_pix = &vfe_formats_pix_845
+ }
+ },
+ /* VFE1 - TFE Full */
+ {
+ .clock = { "gcc_axi_hf", "vfe1_fast_ahb", "vfe1",
+ "camnoc_rt_vfe0", "camnoc_rt_vfe1", "camnoc_rt_vfe2",
+ "camnoc_rt_axi", "camnoc_nrt_axi", "qdss_debug_xo" },
+ .clock_rate = { { 0 },
+ { 0 },
+ { 360280000, 480000000, 630000000, 716000000,
+ 833000000 },
+ { 0 },
+ { 0 },
+ { 0 },
+ { 200000000, 300000000, 400000000, 480000000 },
+ { 0 },
+ { 0 } },
+ .reg = { "vfe1" },
+ .interrupt = { "vfe1" },
+ .vfe = {
+ .line_num = 3,
+ .is_lite = false,
+ .reg_update_after_csid_config = true,
+ .has_pd = true,
+ .pd_name = "ife1",
+ .hw_ops = &vfe_ops_gen4,
+ .formats_rdi = &vfe_formats_rdi_845,
+ .formats_pix = &vfe_formats_pix_845
+ }
+ },
+ /* VFE2 - TFE Full */
+ {
+ .clock = { "gcc_axi_hf", "vfe2_fast_ahb", "vfe2",
+ "camnoc_rt_vfe0", "camnoc_rt_vfe1", "camnoc_rt_vfe2",
+ "camnoc_rt_axi", "camnoc_nrt_axi", "qdss_debug_xo" },
+ .clock_rate = { { 0 },
+ { 0 },
+ { 360280000, 480000000, 630000000, 716000000,
+ 833000000 },
+ { 0 },
+ { 0 },
+ { 0 },
+ { 200000000, 300000000, 400000000, 480000000 },
+ { 0 },
+ { 0 } },
+ .reg = { "vfe2" },
+ .interrupt = { "vfe2" },
+ .vfe = {
+ .line_num = 3,
+ .is_lite = false,
+ .reg_update_after_csid_config = true,
+ .has_pd = true,
+ .pd_name = "ife2",
+ .hw_ops = &vfe_ops_gen4,
+ .formats_rdi = &vfe_formats_rdi_845,
+ .formats_pix = &vfe_formats_pix_845
+ }
+ },
+ /* VFE_LITE0 */
+ {
+ .clock = { "gcc_axi_hf", "vfe_lite_ahb", "vfe_lite",
+ "camnoc_rt_vfe_lite", "camnoc_rt_axi",
+ "camnoc_nrt_axi", "qdss_debug_xo" },
+ .clock_rate = { { 0 },
+ { 0 },
+ { 266666667, 400000000, 480000000 },
+ { 0 },
+ { 200000000, 300000000, 400000000, 480000000 },
+ { 0 },
+ { 0 } },
+ .reg = { "vfe_lite0" },
+ .interrupt = { "vfe_lite0" },
+ .vfe = {
+ .line_num = 4,
+ .is_lite = true,
+ .reg_update_after_csid_config = true,
+ .hw_ops = &vfe_ops_gen4,
+ .formats_rdi = &vfe_formats_rdi_845,
+ .formats_pix = &vfe_formats_pix_845
+ }
+ },
+ /* VFE_LITE1 */
+ {
+ .clock = { "gcc_axi_hf", "vfe_lite_ahb", "vfe_lite",
+ "camnoc_rt_vfe_lite", "camnoc_rt_axi",
+ "camnoc_nrt_axi", "qdss_debug_xo" },
+ .clock_rate = { { 0 },
+ { 0 },
+ { 266666667, 400000000, 480000000 },
+ { 0 },
+ { 200000000, 300000000, 400000000, 480000000 },
+ { 0 },
+ { 0 } },
+ .reg = { "vfe_lite1" },
+ .interrupt = { "vfe_lite1" },
+ .vfe = {
+ .line_num = 4,
+ .is_lite = true,
+ .reg_update_after_csid_config = true,
+ .hw_ops = &vfe_ops_gen4,
+ .formats_rdi = &vfe_formats_rdi_845,
+ .formats_pix = &vfe_formats_pix_845
+ }
+ }
+};
+
static const struct resources_icc icc_res_sm8750[] = {
{
.name = "cam_ahb",
@@ -5702,9 +5835,11 @@ static const struct camss_resources sm8750_resources = {
.pd_name = "top",
.csiphy_res = csiphy_res_8750,
.csid_res = csid_res_8750,
+ .vfe_res = vfe_res_8750,
.icc_res = icc_res_sm8750,
.csiphy_num = ARRAY_SIZE(csiphy_res_8750),
.csid_num = ARRAY_SIZE(csid_res_8750),
+ .vfe_num = ARRAY_SIZE(vfe_res_8750),
.icc_path_num = ARRAY_SIZE(icc_res_sm8750),
};
--
2.34.1
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