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SubjectRe: [PATCH v4 3/7] drm: msm: a6xx: set gpu freq through hfi
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On 7/9/20 4:00 PM, Akhil P Oommen wrote:
> Newer targets support changing gpu frequency through HFI. So
> use that wherever supported instead of the legacy method.
>

It was already using HFI on newer targets. Don't break it in one commit
then fix it in the next.

> Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
> ---
> drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 11 +++++++----
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
> index 233afea..b547339 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
> @@ -121,6 +121,12 @@ void a6xx_gmu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp)
> if (gpu_freq == gmu->gpu_freqs[perf_index])
> break;
>
> + if (!gmu->legacy) {
> + a6xx_hfi_set_freq(gmu, gmu->current_perf_index);
> + icc_set_bw(gpu->icc_path, 0, MBps_to_icc(7216));
> + return;
> + }
> +
> gmu->current_perf_index = perf_index;
> gmu->freq = gmu->gpu_freqs[perf_index];
>
> @@ -893,10 +899,7 @@ int a6xx_gmu_resume(struct a6xx_gpu *a6xx_gpu)
> enable_irq(gmu->hfi_irq);
>
> /* Set the GPU to the current freq */
> - if (gmu->legacy)
> - a6xx_gmu_set_initial_freq(gpu, gmu);
> - else
> - a6xx_hfi_set_freq(gmu, gmu->current_perf_index);
> + a6xx_gmu_set_initial_freq(gpu, gmu);
>
> /*
> * "enable" the GX power domain which won't actually do anything but it
>

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