Commit 730b64d8 authored by Dave Airlie's avatar Dave Airlie

Merge tag 'drm-msm-fixes-2021-10-18' of https://gitlab.freedesktop.org/drm/msm into drm-fixes

One more fix for v5.15, to work around a power stability issue on a630
(and possibly others)
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGs1WPLthmd=ToDcEHm=u-7O38RAVJ2XwRoS8xPmC520vg@mail.gmail.com
parents 519d8195 5ca6779d
......@@ -1838,6 +1838,13 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
adreno_cmp_rev(ADRENO_REV(6, 3, 5, ANY_ID), info->rev)))
adreno_gpu->base.hw_apriv = true;
/*
* For now only clamp to idle freq for devices where this is known not
* to cause power supply issues:
*/
if (info && (info->revn == 618))
gpu->clamp_to_idle = true;
a6xx_llc_slices_init(pdev, a6xx_gpu);
ret = a6xx_set_supported_hw(&pdev->dev, config->rev);
......
......@@ -203,6 +203,10 @@ struct msm_gpu {
uint32_t suspend_count;
struct msm_gpu_state *crashstate;
/* Enable clamping to idle freq when inactive: */
bool clamp_to_idle;
/* True if the hardware supports expanded apriv (a650 and newer) */
bool hw_apriv;
......
......@@ -200,7 +200,8 @@ void msm_devfreq_idle(struct msm_gpu *gpu)
idle_freq = get_freq(gpu);
msm_devfreq_target(&gpu->pdev->dev, &target_freq, 0);
if (gpu->clamp_to_idle)
msm_devfreq_target(&gpu->pdev->dev, &target_freq, 0);
df->idle_time = ktime_get();
df->idle_freq = idle_freq;
......
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