Thread (11 messages) 11 messages, 2 authors, 2025-09-16
STALE290d REVIEWED: 3 (3M)

[PATCH v5 6/9] media: qcom: camss: Add support for CSID 690

From: Vikram Sharma <hidden>
Date: 2025-08-14 10:17:39
Also in: linux-arm-msm, linux-devicetree, linux-media, lkml
Subsystem: arm/qualcomm mailing list, media input infrastructure (v4l/dvb), qualcomm camera subsystem driver, the rest · Maintainers: Mauro Carvalho Chehab, Bryan O'Donoghue, Linus Torvalds 

Add support for CSID 690 found on lemans(sa8775p) soc, This
is different from csid 780 w.r.t few register offsets and
bit-fields.

Signed-off-by: Suresh Vankadara <redacted>
Signed-off-by: Vikram Sharma <redacted>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 .../platform/qcom/camss/camss-csid-gen3.c     |  27 +++-
 drivers/media/platform/qcom/camss/camss.c     | 133 ++++++++++++++++++
 2 files changed, 153 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.c b/drivers/media/platform/qcom/camss/camss-csid-gen3.c
index 433908a54baa..fc6a9787febe 100644
--- a/drivers/media/platform/qcom/camss/camss-csid-gen3.c
+++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.c
@@ -45,8 +45,11 @@
 #define CSID_CSI2_RX_IRQ_CLEAR		0xA4
 #define CSID_CSI2_RX_IRQ_SET		0xA8
 
+#define IS_CSID_690(csid)	(csid->camss->res->version == CAMSS_8775P)
 #define CSID_BUF_DONE_IRQ_STATUS	0x8C
-#define		BUF_DONE_IRQ_STATUS_RDI_OFFSET	(csid_is_lite(csid) ? 1 : 14)
+#define BUF_DONE_IRQ_STATUS_RDI_OFFSET  (csid_is_lite(csid) ?\
+						1 : (IS_CSID_690(csid) ?\
+						13 : 14))
 #define CSID_BUF_DONE_IRQ_MASK		0x90
 #define CSID_BUF_DONE_IRQ_CLEAR		0x94
 #define CSID_BUF_DONE_IRQ_SET		0x98
@@ -59,6 +62,7 @@
 
 #define CSID_CSI2_RX_CFG0		0x200
 #define		CSI2_RX_CFG0_NUM_ACTIVE_LANES	0
+#define		CSI2_RX_CFG0_VC_MODE		3
 #define		CSI2_RX_CFG0_DL0_INPUT_SEL	4
 #define		CSI2_RX_CFG0_PHY_NUM_SEL	20
 
@@ -66,7 +70,9 @@
 #define		CSI2_RX_CFG1_ECC_CORRECTION_EN	BIT(0)
 #define		CSI2_RX_CFG1_VC_MODE		BIT(2)
 
-#define CSID_RDI_CFG0(rdi)		(0x500 + 0x100 * (rdi))
+#define CSID_RDI_CFG0(rdi)	(csid_is_lite(csid) && IS_CSID_690(csid) ?\
+					(0x300 + 0x100 * (rdi)) :\
+					(0x500 + 0x100 * (rdi)))
 #define		RDI_CFG0_TIMESTAMP_EN		BIT(6)
 #define		RDI_CFG0_TIMESTAMP_STB_SEL	BIT(8)
 #define		RDI_CFG0_DECODE_FORMAT		12
@@ -75,10 +81,14 @@
 #define		RDI_CFG0_DT_ID			27
 #define		RDI_CFG0_EN			BIT(31)
 
-#define CSID_RDI_CTRL(rdi)		(0x504 + 0x100 * (rdi))
+#define CSID_RDI_CTRL(rdi)	(csid_is_lite(csid) && IS_CSID_690(csid) ?\
+					(0x304 + 0x100 * (rdi)) :\
+					(0x504 + 0x100 * (rdi)))
 #define		RDI_CTRL_START_CMD		BIT(0)
 
-#define CSID_RDI_CFG1(rdi)		(0x510 + 0x100 * (rdi))
+#define CSID_RDI_CFG1(rdi)	(csid_is_lite(csid) && IS_CSID_690(csid) ?\
+					(0x310 + 0x100 * (rdi)) :\
+					(0x510 + 0x100 * (rdi)))
 #define		RDI_CFG1_DROP_H_EN		BIT(5)
 #define		RDI_CFG1_DROP_V_EN		BIT(6)
 #define		RDI_CFG1_CROP_H_EN		BIT(7)
@@ -86,9 +96,12 @@
 #define		RDI_CFG1_PIX_STORE		BIT(10)
 #define		RDI_CFG1_PACKING_FORMAT_MIPI	BIT(15)
 
-#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi)	(0x548 + 0x100 * (rdi))
-#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi)	(0x54C + 0x100 * (rdi))
-
+#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi)	(csid_is_lite(csid) && IS_CSID_690(csid) ?\
+							(0x348 + 0x100 * (rdi)) :\
+							(0x548 + 0x100 * (rdi)))
+#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi)	(csid_is_lite(csid) && IS_CSID_690(csid) ?\
+							(0x34C + 0x100 * (rdi)) :\
+							(0x54C + 0x100 * (rdi)))
 #define CSI2_RX_CFG0_PHY_SEL_BASE_IDX	1
 
 static void __csid_configure_rx(struct csid_device *csid,
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 4767d4e7c306..5f1e267045cb 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -2554,6 +2554,139 @@ static const struct camss_subdev_resources csiphy_res_8775p[] = {
 	},
 };
 
+static const struct camss_subdev_resources csid_res_8775p[] = {
+	/* CSID0 */
+	{
+		.regulators = {},
+		.clock = { "csid", "csiphy_rx"},
+		.clock_rate = {
+			{ 400000000, 400000000},
+			{ 400000000, 400000000}
+		},
+		.reg = { "csid0" },
+		.interrupt = { "csid0" },
+		.csid = {
+			.is_lite = false,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+	/* CSID1 */
+	{
+		.regulators = {},
+		.clock = { "csid", "csiphy_rx"},
+		.clock_rate = {
+			{ 400000000, 400000000},
+			{ 400000000, 400000000}
+		},
+		.reg = { "csid1" },
+		.interrupt = { "csid1" },
+		.csid = {
+			.is_lite = false,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+
+	/* CSID2 (lite) */
+	{
+		.regulators = {},
+		.clock = { "cpas_vfe_lite", "vfe_lite_ahb",
+			   "vfe_lite_csid", "vfe_lite_cphy_rx",
+			   "vfe_lite"},
+		.clock_rate = {
+			{ 0, 0, 400000000, 400000000, 0},
+			{ 0, 0, 400000000, 480000000, 0}
+		},
+		.reg = { "csid_lite0" },
+		.interrupt = { "csid_lite0" },
+		.csid = {
+			.is_lite = true,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+	/* CSID3 (lite) */
+	{
+		.regulators = {},
+		.clock = { "cpas_vfe_lite", "vfe_lite_ahb",
+			   "vfe_lite_csid", "vfe_lite_cphy_rx",
+			   "vfe_lite"},
+		.clock_rate = {
+			{ 0, 0, 400000000, 400000000, 0},
+			{ 0, 0, 400000000, 480000000, 0}
+		},
+		.reg = { "csid_lite1" },
+		.interrupt = { "csid_lite1" },
+		.csid = {
+			.is_lite = true,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+	/* CSID4 (lite) */
+	{
+		.regulators = {},
+		.clock = { "cpas_vfe_lite", "vfe_lite_ahb",
+			   "vfe_lite_csid", "vfe_lite_cphy_rx",
+			   "vfe_lite"},
+		.clock_rate = {
+			{ 0, 0, 400000000, 400000000, 0},
+			{ 0, 0, 400000000, 480000000, 0}
+		},
+		.reg = { "csid_lite2" },
+		.interrupt = { "csid_lite2" },
+		.csid = {
+			.is_lite = true,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+	/* CSID5 (lite) */
+	{
+		.regulators = {},
+		.clock = { "cpas_vfe_lite", "vfe_lite_ahb",
+			   "vfe_lite_csid", "vfe_lite_cphy_rx",
+			   "vfe_lite"},
+		.clock_rate = {
+			{ 0, 0, 400000000, 400000000, 0},
+			{ 0, 0, 400000000, 480000000, 0}
+		},
+		.reg = { "csid_lite3" },
+		.interrupt = { "csid_lite3" },
+		.csid = {
+			.is_lite = true,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+	/* CSID6 (lite) */
+	{
+		.regulators = {},
+		.clock = { "cpas_vfe_lite", "vfe_lite_ahb",
+			   "vfe_lite_csid", "vfe_lite_cphy_rx",
+			   "vfe_lite"},
+		.clock_rate = {
+			{ 0, 0, 400000000, 400000000, 0},
+			{ 0, 0, 400000000, 480000000, 0}
+		},
+		.reg = { "csid_lite4" },
+		.interrupt = { "csid_lite4" },
+		.csid = {
+			.is_lite = true,
+			.hw_ops = &csid_ops_gen3,
+			.parent_dev_ops = &vfe_parent_dev_ops,
+			.formats = &csid_formats_gen2
+		}
+	},
+};
+
 static const struct resources_icc icc_res_sa8775p[] = {
 	{
 		.name = "ahb",
-- 
2.25.1
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