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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
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1 changed files with 7 additions and 4 deletions
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@ -308,17 +308,20 @@ void panfrost_gpu_power_on(struct panfrost_device *pfdev)
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gpu_write(pfdev, L2_PWRON_LO, pfdev->features.l2_present);
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ret = readl_relaxed_poll_timeout(pfdev->iomem + L2_READY_LO,
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val, val == pfdev->features.l2_present, 100, 1000);
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if (ret)
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dev_err(pfdev->dev, "error powering up gpu L2");
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gpu_write(pfdev, SHADER_PWRON_LO, pfdev->features.shader_present);
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ret |= readl_relaxed_poll_timeout(pfdev->iomem + SHADER_READY_LO,
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ret = readl_relaxed_poll_timeout(pfdev->iomem + SHADER_READY_LO,
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val, val == pfdev->features.shader_present, 100, 1000);
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if (ret)
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dev_err(pfdev->dev, "error powering up gpu shader");
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gpu_write(pfdev, TILER_PWRON_LO, pfdev->features.tiler_present);
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ret |= readl_relaxed_poll_timeout(pfdev->iomem + TILER_READY_LO,
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ret = readl_relaxed_poll_timeout(pfdev->iomem + TILER_READY_LO,
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val, val == pfdev->features.tiler_present, 100, 1000);
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if (ret)
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dev_err(pfdev->dev, "error powering up gpu");
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dev_err(pfdev->dev, "error powering up gpu tiler");
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}
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void panfrost_gpu_power_off(struct panfrost_device *pfdev)
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