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| author | Steven Price <steven.price@arm.com> | 2025-06-30 15:07:02 +0100 |
|---|---|---|
| committer | Steven Price <steven.price@arm.com> | 2025-06-30 16:57:24 +0100 |
| commit | 576fca060f16b4becb050b011d61e42b8429afe6 (patch) | |
| tree | 2f4c53e39ac28beb12ceeb42eb662e1f1ee21417 /drivers/gpu | |
| parent | drm/panel: raydium-rm67200: Add missing drm_display_mode flags (diff) | |
| download | linux-576fca060f16b4becb050b011d61e42b8429afe6.tar.gz linux-576fca060f16b4becb050b011d61e42b8429afe6.zip | |
drm/panthor: Wait for _READY register when powering on
panthor_gpu_block_power_on() takes a register offset (rdy_reg) for the
purpose of waiting for the power transition to complete. However, a
copy/paste error converting to use the new 64 register functions
switched it to using the pwrtrans_reg register instead. Fix the function
to use the correct register.
Fixes: 4d230aa209ed ("drm/panthor: Add 64-bit and poll register accessors")
Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20250630140704.432409-1-steven.price@arm.com
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_gpu.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_gpu.c b/drivers/gpu/drm/panthor/panthor_gpu.c index 534735518824..cb7a335e07d7 100644 --- a/drivers/gpu/drm/panthor/panthor_gpu.c +++ b/drivers/gpu/drm/panthor/panthor_gpu.c @@ -297,8 +297,9 @@ int panthor_gpu_block_power_on(struct panthor_device *ptdev, gpu_write64(ptdev, pwron_reg, mask); - ret = gpu_read64_relaxed_poll_timeout(ptdev, pwrtrans_reg, val, - !(mask & val), 100, timeout_us); + ret = gpu_read64_relaxed_poll_timeout(ptdev, rdy_reg, val, + (mask & val) == val, + 100, timeout_us); if (ret) { drm_err(&ptdev->base, "timeout waiting on %s:%llx readiness", blk_name, mask); |