linux-kernel - [PATCH v3 3/7] media: qcom: camss: Add CSIPHY support for QCS8300

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Message-ID: <20250813053724.232494-4-quic_vikramsa@quicinc.com>
Date: Wed, 13 Aug 2025 11:07:20 +0530
From: Vikram Sharma <quic_vikramsa@...cinc.com>
To: <rfoss@...nel.org>, <todor.too@...il.com>, <bryan.odonoghue@...aro.org>,
        <mchehab@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <hverkuil-cisco@...all.nl>,
        <cros-qcom-dts-watchers@...omium.org>, <catalin.marinas@....com>,
        <will@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <quic_vikramsa@...cinc.com>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 3/7] media: qcom: camss: Add CSIPHY support for QCS8300

QCS8300 uses the same CSIPHY hardware version (v1.3.0) as
SA8775P. The only difference between the two platforms is
the number of CSIPHY instances: SA8775P has four, while
QCS8300 has three.

Signed-off-by: Vikram Sharma <quic_vikramsa@...cinc.com>
---
 .../qcom/camss/camss-csiphy-3ph-1-0.c         |  2 +
 drivers/media/platform/qcom/camss/camss.c     | 57 +++++++++++++++++++
 2 files changed, 59 insertions(+)

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
index a610504359d0..445f4d41e847 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
@@ -826,6 +826,7 @@ static bool csiphy_is_gen2(u32 version)
 	case CAMSS_7280:
 	case CAMSS_8250:
 	case CAMSS_8280XP:
+	case CAMSS_8300:
 	case CAMSS_845:
 	case CAMSS_8550:
 	case CAMSS_8775P:
@@ -928,6 +929,7 @@ static int csiphy_init(struct csiphy_device *csiphy)
 		regs->lane_array_size = ARRAY_SIZE(lane_regs_sm8550);
 		regs->offset = 0x1000;
 		break;
+	case CAMSS_8300:
 	case CAMSS_8775P:
 		regs->lane_regs = &lane_regs_sa8775p[0];
 		regs->lane_array_size = ARRAY_SIZE(lane_regs_sa8775p);
diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 6b9aba1029b5..410e188d26aa 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -2483,6 +2483,63 @@ static const struct resources_icc icc_res_sm8550[] = {
 	},
 };
 
+static const struct camss_subdev_resources csiphy_res_8300[] = {
+	/* CSIPHY0 */
+	{
+		.regulators = { "vdda-phy", "vdda-pll" },
+
+		.clock = { "csiphy_rx", "csiphy0", "csiphy0_timer" },
+		.clock_rate = {
+			{ 400000000 },
+			{ 0 },
+			{ 400000000 },
+		},
+		.reg = { "csiphy0" },
+		.interrupt = { "csiphy0" },
+		.csiphy = {
+			.id = 0,
+			.hw_ops = &csiphy_ops_3ph_1_0,
+			.formats = &csiphy_formats_sdm845,
+		}
+	},
+	/* CSIPHY1 */
+	{
+		.regulators = { "vdda-phy", "vdda-pll" },
+
+		.clock = { "csiphy_rx", "csiphy1", "csiphy1_timer" },
+		.clock_rate = {
+			{ 400000000 },
+			{ 0 },
+			{ 400000000 },
+		},
+		.reg = { "csiphy1" },
+		.interrupt = { "csiphy1" },
+		.csiphy = {
+			.id = 1,
+			.hw_ops = &csiphy_ops_3ph_1_0,
+			.formats = &csiphy_formats_sdm845,
+		}
+	},
+	/* CSIPHY2 */
+	{
+		.regulators = { "vdda-phy", "vdda-pll" },
+
+		.clock = { "csiphy_rx", "csiphy2", "csiphy2_timer" },
+		.clock_rate = {
+			{ 400000000 },
+			{ 0 },
+			{ 400000000 },
+		},
+		.reg = { "csiphy2" },
+		.interrupt = { "csiphy2" },
+		.csiphy = {
+			.id = 2,
+			.hw_ops = &csiphy_ops_3ph_1_0,
+			.formats = &csiphy_formats_sdm845,
+		}
+	},
+};
+
 static const struct camss_subdev_resources csiphy_res_8775p[] = {
 	/* CSIPHY0 */
 	{
-- 
2.25.1