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Subject[PATCH 14/20] video: msm: Write IRQ mask to MDP registers
Date
Writing MDP IRQ mask to the MDP IRQ register to fully disable interrupt.

Authors:
Dima Zavin <dima@android.com>
Rebecca Schultz Zavin <rebecca@android.com>
Colin Cross <ccross@android.com>

Signed-off-by: Carl Vanderlip <carlv@codeaurora.org>
---
drivers/video/msm/mdp.c | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c
index bdca2d9..8184ca9 100644
--- a/drivers/video/msm/mdp.c
+++ b/drivers/video/msm/mdp.c
@@ -59,9 +59,13 @@ static int locked_enable_mdp_irq(struct mdp_info *mdp, uint32_t mask)
enable_irq(mdp->irq);
}

+ /* clear out any previous irqs for the requested mask*/
+ mdp_writel(mdp, mask, MDP_INTR_CLEAR);
+
/* update the irq mask to reflect the fact that the interrupt is
* enabled */
mdp_irq_mask |= mask;
+ mdp_writel(mdp, mdp_irq_mask, MDP_INTR_ENABLE);
return 0;
}

@@ -87,6 +91,8 @@ static int locked_disable_mdp_irq(struct mdp_info *mdp, uint32_t mask)
/* update the irq mask to reflect the fact that the interrupt is
* disabled */
mdp_irq_mask &= ~(mask);
+ mdp_writel(mdp, mdp_irq_mask, MDP_INTR_ENABLE);
+
/* if no one is waiting on the interrupt, disable it */
if (!mdp_irq_mask) {
disable_irq_nosync(mdp->irq);
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.


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