On 3/18/2025 5:52 PM, Konrad Dybcio wrote:
> On 3/17/25 12:31 PM, Dmitry Baryshkov wrote:
>> On Tue, Mar 11, 2025 at 05:33:55PM +0530, Vikash Garodia wrote:
>>> Video node enables video on Qualcomm SA8775P platform.
>>>
>>> Signed-off-by: Vikash Garodia <quic_vgarodia@xxxxxxxxxxx>
>>> ---
>>> arch/arm64/boot/dts/qcom/sa8775p.dtsi | 67 +++++++++++++++++++++++++++++++++++
>>> 1 file changed, 67 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>>> index 3394ae2d13003417a15e64c9e47833725ec779e6..09db8e2eb578f1cada0f4a15e3f844dc097bd46d 100644
>>> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
>>> @@ -10,6 +10,7 @@
>>> #include <dt-bindings/clock/qcom,sa8775p-dispcc.h>
>>> #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
>>> #include <dt-bindings/clock/qcom,sa8775p-gpucc.h>
>>> +#include <dt-bindings/clock/qcom,sa8775p-videocc.h>
>>> #include <dt-bindings/dma/qcom-gpi.h>
>>> #include <dt-bindings/interconnect/qcom,sa8775p-rpmh.h>
>>> #include <dt-bindings/mailbox/qcom-ipcc.h>
>>> @@ -3783,6 +3784,72 @@ llcc: system-cache-controller@9200000 {
>>> interrupts = <GIC_SPI 580 IRQ_TYPE_LEVEL_HIGH>;
>>> };
>>>
>>> + iris: video-codec@aa00000 {
>>> + compatible = "qcom,sa8775p-iris";
>>> +
>>> + reg = <0 0x0aa00000 0 0xf0000>;
>>> + interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
>>> +
>>> + power-domains = <&videocc VIDEO_CC_MVS0C_GDSC>,
>>> + <&videocc VIDEO_CC_MVS0_GDSC>,
>>> + <&rpmhpd SA8775P_MXC>,
>>> + <&rpmhpd SA8775P_MMCX>;
>>> + power-domain-names = "venus",
>>> + "vcodec0",
>>> + "mx",
>>> + "mmcx";
>>> + operating-points-v2 = <&iris_opp_table>;
>>> +
>>> + clocks = <&gcc GCC_VIDEO_AXI0_CLK>,
>>> + <&videocc VIDEO_CC_MVS0C_CLK>,
>>> + <&videocc VIDEO_CC_MVS0_CLK>;
>>> + clock-names = "iface",
>>> + "core",
>>> + "vcodec0_core";
>>> +
>>> + interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
>>> + &config_noc SLAVE_VENUS_CFG QCOM_ICC_TAG_ALWAYS>,
>>> + <&mmss_noc MASTER_VIDEO_P0 QCOM_ICC_TAG_ALWAYS
>>> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
>>> + interconnect-names = "cpu-cfg",
>>> + "video-mem";
>>> +
>>> + firmware-name = "qcom/vpu/vpu30_p4_s6.mbn";
>>> + memory-region = <&pil_video_mem>;
>>> +
>>> + resets = <&gcc GCC_VIDEO_AXI0_CLK_ARES>;
>>> + reset-names = "bus";
>>> +
>>> + iommus = <&apps_smmu 0x0880 0x0400>,
>>> + <&apps_smmu 0x0887 0x0400>;
>>> + dma-coherent;
>>
>> I think almost missed it:
>>
>> status = "disabled";
>>
>> Don't enable the device by default, there is a chance of the firmware
>> being not present.
>
> On a sidenote, venus driver broke sync_state by requesting the firmware at
> load time, instead of at the time of first open (though the latter could
> introduce some latency on first video playback, but both are debatable) -
> what does iris do here?
iris does it on first open
Regards,
Vikash
>
> Konrad>
