linux-kernel - [PATCH] media: iris: Add missing platform data entries for SM8750

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Message-Id: <20251218-iris-sm8750-fix-v1-1-9a6df5cd6fd3@oss.qualcomm.com>
Date: Thu, 18 Dec 2025 12:24:09 +0530
From: Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
To: Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bod@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Hans Verkuil <hverkuil+cisco@...nel.org>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
Subject: [PATCH] media: iris: Add missing platform data entries for SM8750

Two platform-data fields for SM8750 were missed:

  - get_vpu_buffer_size = iris_vpu33_buf_size
    Without this, the driver fails to allocate the required internal
    buffers, leading to basic decode/encode failures during session
    bring-up.

  - max_core_mbps = ((7680 * 4320) / 256) * 60
    Without this capability exposed, capability checks are incomplete and
    v4l2-compliance for encoder fails.

Fixes: a5925a2ce077 ("media: iris: add VPU33 specific encoding buffer calculation")
Fixes: a6882431a138 ("media: iris: Add support for ENUM_FRAMESIZES/FRAMEINTERVALS for encoder")
Cc: stable@...r.kernel.org
Signed-off-by: Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>
---
 drivers/media/platform/qcom/iris/iris_platform_gen2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/qcom/iris/iris_platform_gen2.c b/drivers/media/platform/qcom/iris/iris_platform_gen2.c
index c1989240c248601c34b84f508f1b72d72f81260a..00d1d55463179429f2ae7554546dcbe4fb1431cc 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_gen2.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_gen2.c
@@ -915,6 +915,7 @@ const struct iris_platform_data sm8750_data = {
 	.get_instance = iris_hfi_gen2_get_instance,
 	.init_hfi_command_ops = iris_hfi_gen2_command_ops_init,
 	.init_hfi_response_ops = iris_hfi_gen2_response_ops_init,
+	.get_vpu_buffer_size = iris_vpu33_buf_size,
 	.vpu_ops = &iris_vpu35_ops,
 	.set_preset_registers = iris_set_sm8550_preset_registers,
 	.icc_tbl = sm8550_icc_table,
@@ -945,6 +946,7 @@ const struct iris_platform_data sm8750_data = {
 	.num_vpp_pipe = 4,
 	.max_session_count = 16,
 	.max_core_mbpf = NUM_MBS_8K * 2,
+	.max_core_mbps = ((7680 * 4320) / 256) * 60,
 	.dec_input_config_params_default =
 		sm8550_vdec_input_config_params_default,
 	.dec_input_config_params_default_size =

---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251217-iris-sm8750-fix-2d42a133058d

Best regards,
-- 
Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>