On Sun Jan 25 13:30:10 2026 +0200, Dmitry Baryshkov wrote:
> The UBWC max_channels spreading is specified in the Iris driver, but it
> also can be calculated from the platform UBWC config. Use the platform
> UBWC configuration instead of specifying it directly in the source.
>
> Reviewed-by: Konrad Dybcio <[email protected]>
> Reviewed-by: Bryan O'Donoghue <[email protected]>
> Reviewed-by: Dikshita Agarwal <[email protected]>
> Tested-by: Wangao Wang <[email protected]>
> Signed-off-by: Dmitry Baryshkov <[email protected]>
> Signed-off-by: Bryan O'Donoghue <[email protected]>
Patch committed.
Thanks,
Bryan O'Donoghue
drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c | 2 +-
drivers/media/platform/qcom/iris/iris_platform_common.h | 1 -
drivers/media/platform/qcom/iris/iris_platform_gen2.c | 1 -
3 files changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c
b/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c
index a49394b92768..0d05dd2afc07 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c
@@ -140,7 +140,7 @@ void iris_hfi_gen2_packet_sys_init(struct iris_core *core,
struct iris_hfi_heade
&payload,
sizeof(u32));
- payload = core->iris_platform_data->ubwc_config->max_channels;
+ payload = qcom_ubwc_macrotile_mode(ubwc) ? 8 : 4;
iris_hfi_gen2_create_packet(hdr,
HFI_PROP_UBWC_MAX_CHANNELS,
HFI_HOST_FLAGS_NONE,
diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h
b/drivers/media/platform/qcom/iris/iris_platform_common.h
index 07c58cf3a14a..e8b5446dce76 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_common.h
+++ b/drivers/media/platform/qcom/iris/iris_platform_common.h
@@ -76,7 +76,6 @@ struct tz_cp_config {
};
struct ubwc_config_data {
- u32 max_channels;
};
struct platform_inst_caps {
diff --git a/drivers/media/platform/qcom/iris/iris_platform_gen2.c
b/drivers/media/platform/qcom/iris/iris_platform_gen2.c
index 4e617176dee4..05b1dd11abce 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_gen2.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_gen2.c
@@ -791,7 +791,6 @@ static const char * const sm8550_opp_clk_table[] = {
};
static struct ubwc_config_data ubwc_config_sm8550 = {
- .max_channels = 8,
};
static const struct tz_cp_config tz_cp_config_sm8550[] = {
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