linux-kernel - [PATCH RESEND v2 2/5] media: qcom: camss: Add SM8750 compatible camss driver

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Message-Id: <20260119-add-support-for-camss-on-sm8750-v2-2-3e06583a0a81@oss.qualcomm.com>
Date: Mon, 19 Jan 2026 22:42:52 -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>
Subject: [PATCH RESEND v2 2/5] media: qcom: camss: Add SM8750 compatible
 camss driver

Add support for SM8750 in the camss driver. Add high level resource
information along with the bus bandwidth votes. Module level detailed
resource information will be enumerated in the following patches of the
series.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
---
 drivers/media/platform/qcom/camss/camss.c | 22 ++++++++++++++++++++++
 drivers/media/platform/qcom/camss/camss.h |  1 +
 2 files changed, 23 insertions(+)

diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
index 9c99fdf34bbb..0b524b615a94 100644
--- a/drivers/media/platform/qcom/camss/camss.c
+++ b/drivers/media/platform/qcom/camss/camss.c
@@ -4248,6 +4248,20 @@ static const struct resources_icc icc_res_sa8775p[] = {
 	},
 };
 
+static const struct resources_icc icc_res_sm8750[] = {
+	{
+		.name = "cam_ahb",
+		.icc_bw_tbl.avg = 150000,
+		.icc_bw_tbl.peak = 300000,
+	},
+	/* Based on 4096 x 3072 30 FPS 2496 Mbps mode */
+	{
+		.name = "cam_hf_mnoc",
+		.icc_bw_tbl.avg = 471860,
+		.icc_bw_tbl.peak = 925857,
+	},
+};
+
 static const struct camss_subdev_resources csiphy_res_x1e80100[] = {
 	/* CSIPHY0 */
 	{
@@ -5670,6 +5684,13 @@ static const struct camss_resources sm8650_resources = {
 	.vfe_num = ARRAY_SIZE(vfe_res_sm8650),
 };
 
+static const struct camss_resources sm8750_resources = {
+	.version = CAMSS_8750,
+	.pd_name = "top",
+	.icc_res = icc_res_sm8750,
+	.icc_path_num = ARRAY_SIZE(icc_res_sm8750),
+};
+
 static const struct camss_resources x1e80100_resources = {
 	.version = CAMSS_X1E80100,
 	.pd_name = "top",
@@ -5702,6 +5723,7 @@ static const struct of_device_id camss_dt_match[] = {
 	{ .compatible = "qcom,sm8250-camss", .data = &sm8250_resources },
 	{ .compatible = "qcom,sm8550-camss", .data = &sm8550_resources },
 	{ .compatible = "qcom,sm8650-camss", .data = &sm8650_resources },
+	{ .compatible = "qcom,sm8750-camss", .data = &sm8750_resources },
 	{ .compatible = "qcom,x1e80100-camss", .data = &x1e80100_resources },
 	{ }
 };
diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/media/platform/qcom/camss/camss.h
index 2820c687e066..dafdfe1d3a4a 100644
--- a/drivers/media/platform/qcom/camss/camss.h
+++ b/drivers/media/platform/qcom/camss/camss.h
@@ -92,6 +92,7 @@ enum camss_version {
 	CAMSS_845,
 	CAMSS_8550,
 	CAMSS_8650,
+	CAMSS_8750,
 	CAMSS_8775P,
 	CAMSS_KAANAPALI,
 	CAMSS_X1E80100,

-- 
2.34.1