[PATCH v3 8/9] media: qcom: camss: Add support for VFE 690
From: Vikram Sharma
Date: Thu Jul 03 2025 - 13:24:02 EST
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 <quic_svankada@xxxxxxxxxxx>
Signed-off-by: Suresh Vankadara <quic_svankada@xxxxxxxxxxx>
Signed-off-by: Vikram Sharma <quic_vikramsa@xxxxxxxxxxx>
---
.../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)
+
+#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);
+
/* 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));
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"},
+ .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",
--
2.25.1