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drm/msm/a6xx+: Increase GMU FW init timeout

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We were using 10ms, kgsl uses 100ms.  In practice it is usually takes
less than 10ms, but very occasionally goes a bit above 10ms, leading to
a "GMU firmware inialization timed out", from which point things go
south.

There are probably some things that could be done to speed up init, like
increasing GMU freq.  But to be safe, increase the timeout to match
kgsl.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Reviewed-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/753014/
Message-ID: <20260912150915.28700-1-robin.clark@oss.qualcomm.com>
This commit is contained in:
Rob Clark 2026-09-12 08:09:14 -07:00
parent a2b6583798
commit ba970587a0
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/msm/adreno/a6xx_gmu.c
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@ -320,7 +320,7 @@ static int a6xx_gmu_start(struct a6xx_gmu *gmu)
gmu_write(gmu, REG_A6XX_GMU_CM3_SYSRESET, 0);
ret = gmu_poll_timeout(gmu, REG_A6XX_GMU_CM3_FW_INIT_RESULT, val,
(val & mask) == reset_val, 100, 10000);
(val & mask) == reset_val, 100, 100000);
if (ret)
DRM_DEV_ERROR(gmu->dev, "GMU firmware initialization timed out\n");