diff options
| author | Nicolas Boichat <drinkcat@chromium.org> | 2020-02-07 13:26:23 +0800 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2020-02-25 14:35:29 -0600 |
| commit | a9d73b30bb46afb2da40257d680249dc029702d4 (patch) | |
| tree | 9a596649a893c384e6b16768aa3f99b1c476ba6e /drivers/gpu/drm/panfrost | |
| parent | cf52925a862e16ec0151627f64446f0eba853e45 (diff) | |
drm/panfrost: Improve error reporting in panfrost_gpu_power_on
It is useful to know which component cannot be powered on.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200207052627.130118-4-drinkcat@chromium.org
Diffstat (limited to 'drivers/gpu/drm/panfrost')
| -rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_gpu.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index 1b9b79cd5804..f2c1ddc41a9b 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -308,17 +308,20 @@ void panfrost_gpu_power_on(struct panfrost_device *pfdev) gpu_write(pfdev, L2_PWRON_LO, pfdev->features.l2_present); ret = readl_relaxed_poll_timeout(pfdev->iomem + L2_READY_LO, val, val == pfdev->features.l2_present, 100, 1000); + if (ret) + dev_err(pfdev->dev, "error powering up gpu L2"); gpu_write(pfdev, SHADER_PWRON_LO, pfdev->features.shader_present); - ret |= readl_relaxed_poll_timeout(pfdev->iomem + SHADER_READY_LO, + ret = readl_relaxed_poll_timeout(pfdev->iomem + SHADER_READY_LO, val, val == pfdev->features.shader_present, 100, 1000); + if (ret) + dev_err(pfdev->dev, "error powering up gpu shader"); gpu_write(pfdev, TILER_PWRON_LO, pfdev->features.tiler_present); - ret |= readl_relaxed_poll_timeout(pfdev->iomem + TILER_READY_LO, + ret = readl_relaxed_poll_timeout(pfdev->iomem + TILER_READY_LO, val, val == pfdev->features.tiler_present, 100, 1000); - if (ret) - dev_err(pfdev->dev, "error powering up gpu"); + dev_err(pfdev->dev, "error powering up gpu tiler"); } void panfrost_gpu_power_off(struct panfrost_device *pfdev) |