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drm/arm/malidp: Enable/disable interrupts in runtime pm

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Display and scaling engine interrupts need to be disabled when the
runtime pm invokes malidp_runtime_pm_suspend(). Conversely, they
need to be enabled in malidp_runtime_pm_resume().

This patch depends on:
https://lkml.org/lkml/2017/5/15/695

Reported-by: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@arm.com>
Signed-off-by: Alexandru-Cosmin Gheorghe <Alexandru-Cosmin.Gheorghe@arm.com>
Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
Ayan Kumar Halder 2018-05-15 17:04:17 +01:00 committed by Liviu Dudau
parent ff8fc26a76
commit fbcc454e8a
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/arm/malidp_drv.c
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@ -582,6 +582,8 @@ static int malidp_runtime_pm_suspend(struct device *dev)
/* we can only suspend if the hardware is in config mode */
WARN_ON(!hwdev->hw->in_config_mode(hwdev));
malidp_se_irq_fini(hwdev);
malidp_de_irq_fini(hwdev);
hwdev->pm_suspended = true;
clk_disable_unprepare(hwdev->mclk);
clk_disable_unprepare(hwdev->aclk);
@ -600,6 +602,8 @@ static int malidp_runtime_pm_resume(struct device *dev)
clk_prepare_enable(hwdev->aclk);
clk_prepare_enable(hwdev->mclk);
hwdev->pm_suspended = false;
malidp_de_irq_hw_init(hwdev);
malidp_se_irq_hw_init(hwdev);
return 0;
}