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SubjectRe: [PATCH v2 11/29] venus: venc,vdec: adds clocks needed for venus 4xx
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Hi Tomasz,

On 05/24/2018 09:11 AM, Tomasz Figa wrote:
> Hi Stanimir,
>
> On Tue, May 15, 2018 at 5:10 PM Stanimir Varbanov <
> stanimir.varbanov@linaro.org> wrote:
>
>> This extends the clocks number to support suspend and resume
>> on Venus version 4xx.
>
>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
>> ---
>> drivers/media/platform/qcom/venus/core.h | 4 +--
>> drivers/media/platform/qcom/venus/vdec.c | 42
> ++++++++++++++++++++++++++------
>> drivers/media/platform/qcom/venus/venc.c | 42
> ++++++++++++++++++++++++++------
>> 3 files changed, 72 insertions(+), 16 deletions(-)
>
>> diff --git a/drivers/media/platform/qcom/venus/core.h
> b/drivers/media/platform/qcom/venus/core.h
>> index 8d3e150800c9..b5b9a84e9155 100644
>> --- a/drivers/media/platform/qcom/venus/core.h
>> +++ b/drivers/media/platform/qcom/venus/core.h
>> @@ -92,8 +92,8 @@ struct venus_core {
>> void __iomem *base;
>> int irq;
>> struct clk *clks[VIDC_CLKS_NUM_MAX];
>> - struct clk *core0_clk;
>> - struct clk *core1_clk;
>> + struct clk *core0_clk, *core0_bus_clk;
>> + struct clk *core1_clk, *core1_bus_clk;
>> struct video_device *vdev_dec;
>> struct video_device *vdev_enc;
>> struct v4l2_device v4l2_dev;
>> diff --git a/drivers/media/platform/qcom/venus/vdec.c
> b/drivers/media/platform/qcom/venus/vdec.c
>> index 261a51adeef2..c45452634e7e 100644
>> --- a/drivers/media/platform/qcom/venus/vdec.c
>> +++ b/drivers/media/platform/qcom/venus/vdec.c
>> @@ -1081,12 +1081,18 @@ static int vdec_probe(struct platform_device
> *pdev)
>> if (!core)
>> return -EPROBE_DEFER;
>
>> - if (core->res->hfi_version == HFI_VERSION_3XX) {
>> + if (IS_V3(core) || IS_V4(core)) {
>> core->core0_clk = devm_clk_get(dev, "core");
>> if (IS_ERR(core->core0_clk))
>> return PTR_ERR(core->core0_clk);
>> }
>
>> + if (IS_V4(core)) {
>> + core->core0_bus_clk = devm_clk_get(dev, "bus");
>> + if (IS_ERR(core->core0_bus_clk))
>> + return PTR_ERR(core->core0_bus_clk);
>> + }
>> +
>
> Rather than doing this conditional dance, wouldn't it make more sense to
> just list all the clocks in variant data struct and use clk_bulk_get()?

Do you mean the same as it is done for venus/core.c ?

>
>> platform_set_drvdata(pdev, core);
>
>> vdev = video_device_alloc();
>> @@ -1132,12 +1138,23 @@ static __maybe_unused int
> vdec_runtime_suspend(struct device *dev)
>> {
>> struct venus_core *core = dev_get_drvdata(dev);
>
>> - if (core->res->hfi_version == HFI_VERSION_1XX)
>> + if (IS_V1(core))
>> return 0;
>
>> - writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
>> + if (IS_V3(core))
>> + writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
>> + else if (IS_V4(core))
>> + writel(0, core->base +
> WRAPPER_VCODEC0_MMCC_POWER_CONTROL);
>> +
>> + if (IS_V4(core))
>> + clk_disable_unprepare(core->core0_bus_clk);
>> +
>> clk_disable_unprepare(core->core0_clk);
>> - writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
>> +
>> + if (IS_V3(core))
>> + writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
>> + else if (IS_V4(core))
>> + writel(1, core->base +
> WRAPPER_VCODEC0_MMCC_POWER_CONTROL);
>
> Almost every step here differs between version. I'd suggest splitting this
> into separate functions for both versions.

I think it will be better to squash this patch with 13/29.


--
regards,
Stan

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