Extract the hardware initialisation part from malidp_de_irq_init() into the malidp_de_irq_hw_init() which will be later invoked from runtime_pm_resume function when it needs to re-enable the interrupts.
Change-Id: If8bdb0e246653cb7d7b7d6d63919c45b01350c10 Signed-off-by: Ayan Kumar Halder ayan.halder@arm.com --- drivers/gpu/drm/arm/malidp_hw.c | 25 ++++++++++++++++++------- drivers/gpu/drm/arm/malidp_hw.h | 1 + 2 files changed, 19 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index 8fb02f3..3e73370 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -869,6 +869,23 @@ static irqreturn_t malidp_de_irq_thread_handler(int irq, void *arg) return IRQ_HANDLED; }
+void malidp_de_irq_hw_init(struct malidp_hw_device *hwdev) +{ + /* ensure interrupts are disabled */ + malidp_hw_disable_irq(hwdev, MALIDP_DE_BLOCK, 0xffffffff); + malidp_hw_clear_irq(hwdev, MALIDP_DE_BLOCK, 0xffffffff); + malidp_hw_disable_irq(hwdev, MALIDP_DC_BLOCK, 0xffffffff); + malidp_hw_clear_irq(hwdev, MALIDP_DC_BLOCK, 0xffffffff); + + /* first enable the DC block IRQs */ + malidp_hw_enable_irq(hwdev, MALIDP_DC_BLOCK, + hwdev->hw->map.dc_irq_map.irq_mask); + + /* now enable the DE block IRQs */ + malidp_hw_enable_irq(hwdev, MALIDP_DE_BLOCK, + hwdev->hw->map.de_irq_map.irq_mask); +} + int malidp_de_irq_init(struct drm_device *drm, int irq) { struct malidp_drm *malidp = drm->dev_private; @@ -889,13 +906,7 @@ int malidp_de_irq_init(struct drm_device *drm, int irq) return ret; }
- /* first enable the DC block IRQs */ - malidp_hw_enable_irq(hwdev, MALIDP_DC_BLOCK, - hwdev->hw->map.dc_irq_map.irq_mask); - - /* now enable the DE block IRQs */ - malidp_hw_enable_irq(hwdev, MALIDP_DE_BLOCK, - hwdev->hw->map.de_irq_map.irq_mask); + malidp_de_irq_hw_init(hwdev);
return 0; } diff --git a/drivers/gpu/drm/arm/malidp_hw.h b/drivers/gpu/drm/arm/malidp_hw.h index 6607aba..3b049d0 100644 --- a/drivers/gpu/drm/arm/malidp_hw.h +++ b/drivers/gpu/drm/arm/malidp_hw.h @@ -297,6 +297,7 @@ static inline void malidp_hw_enable_irq(struct malidp_hw_device *hwdev, }
int malidp_de_irq_init(struct drm_device *drm, int irq); +void malidp_de_irq_hw_init(struct malidp_hw_device *hwdev); void malidp_de_irq_fini(struct malidp_hw_device *hwdev); int malidp_se_irq_init(struct drm_device *drm, int irq); void malidp_se_irq_fini(struct malidp_hw_device *hwdev);