[PATCH 3/8] drm/arm/malidp: Split malidp_de_irq_init

[Ayan Kumar Halder]

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.hal...@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);
-- 
2.7.4

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel