On Sun Jan 25 13:30:05 2026 +0200, Dmitry Baryshkov wrote:
> Specifying UBWC data in each driver doesn't scale and is prone to
> errors. Request UBWC data from the central database in preparation to
> using it through the rest of the driver.
>
> Reviewed-by: Bryan O'Donoghue <[email protected]>
> Reviewed-by: Konrad Dybcio <[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/Kconfig | 1 +
drivers/media/platform/qcom/iris/iris_core.h | 4 ++++
drivers/media/platform/qcom/iris/iris_probe.c | 5 +++++
3 files changed, 10 insertions(+)
---
diff --git a/drivers/media/platform/qcom/iris/Kconfig
b/drivers/media/platform/qcom/iris/Kconfig
index 3c803a05305a..39b06de6c3e6 100644
--- a/drivers/media/platform/qcom/iris/Kconfig
+++ b/drivers/media/platform/qcom/iris/Kconfig
@@ -5,6 +5,7 @@ config VIDEO_QCOM_IRIS
select V4L2_MEM2MEM_DEV
select QCOM_MDT_LOADER if ARCH_QCOM
select QCOM_SCM
+ select QCOM_UBWC_CONFIG
select VIDEOBUF2_DMA_CONTIG
help
This is a V4L2 driver for Qualcomm iris video accelerator
diff --git a/drivers/media/platform/qcom/iris/iris_core.h
b/drivers/media/platform/qcom/iris/iris_core.h
index fb194c967ad4..d10a03aa5685 100644
--- a/drivers/media/platform/qcom/iris/iris_core.h
+++ b/drivers/media/platform/qcom/iris/iris_core.h
@@ -30,6 +30,8 @@ enum domain_type {
DECODER = BIT(1),
};
+struct qcom_ubwc_cfg_data;
+
/**
* struct iris_core - holds core parameters valid for all instances
*
@@ -52,6 +54,7 @@ enum domain_type {
* @resets: table of iris reset clocks
* @controller_resets: table of controller reset clocks
* @iris_platform_data: a structure for platform data
+ * @ubwc_cfg: UBWC configuration for the platform
* @state: current state of core
* @iface_q_table_daddr: device address for interface queue table memory
* @sfr_daddr: device address for SFR (Sub System Failure Reason) register
memory
@@ -95,6 +98,7 @@ struct iris_core {
struct reset_control_bulk_data *resets;
struct reset_control_bulk_data *controller_resets;
const struct iris_platform_data *iris_platform_data;
+ const struct qcom_ubwc_cfg_data *ubwc_cfg;
enum iris_core_state state;
dma_addr_t iface_q_table_daddr;
dma_addr_t sfr_daddr;
diff --git a/drivers/media/platform/qcom/iris/iris_probe.c
b/drivers/media/platform/qcom/iris/iris_probe.c
index ddaacda523ec..492f85f518eb 100644
--- a/drivers/media/platform/qcom/iris/iris_probe.c
+++ b/drivers/media/platform/qcom/iris/iris_probe.c
@@ -10,6 +10,7 @@
#include <linux/pm_opp.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
+#include <linux/soc/qcom/ubwc.h>
#include "iris_core.h"
#include "iris_ctrls.h"
@@ -244,6 +245,10 @@ static int iris_probe(struct platform_device *pdev)
core->iris_platform_data = of_device_get_match_data(core->dev);
+ core->ubwc_cfg = qcom_ubwc_config_get_data();
+ if (IS_ERR(core->ubwc_cfg))
+ return PTR_ERR(core->ubwc_cfg);
+
ret = devm_request_threaded_irq(core->dev, core->irq, iris_hfi_isr,
iris_hfi_isr_handler,
IRQF_TRIGGER_HIGH, "iris", core);
if (ret)
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