Re: [PATCH v2 1/3] firmware: qcom: scm: add a video command for state setting

From: Stephen Boyd
Date: Wed Nov 09 2016 - 20:52:58 EST


On 11/07, Stanimir Varbanov wrote:
> diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
> index d95c70227c05..7e364691a87c 100644
> --- a/drivers/firmware/qcom_scm.c
> +++ b/drivers/firmware/qcom_scm.c
> @@ -320,6 +320,22 @@ bool qcom_scm_is_available(void)
> }
> EXPORT_SYMBOL(qcom_scm_is_available);
>
> +int qcom_scm_video_set_state(u32 state, u32 spare)
> +{
> + int ret;
> +
> + ret = qcom_scm_clk_enable();

Do we need clk control for this? Usually it's only required for
crypto engine things, and turning on video doesn't sound like it
uses crypto. I don't think downstream android kernel does this.

> + if (ret)
> + return ret;
> +
> + ret = __qcom_scm_video_set_state(__scm->dev, state, spare);
> +
> + qcom_scm_clk_disable();
> +
> + return ret;
> +}
> +EXPORT_SYMBOL(qcom_scm_video_set_state);
> +
> static int qcom_scm_probe(struct platform_device *pdev)
> {
> struct qcom_scm *scm;

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