[PATCH 14/20] video: msm: Write IRQ mask to MDP registers
From: Carl Vanderlip <hidden>
Date: 2011-03-18 21:59:11
Also in:
linux-arm-kernel, linux-arm-msm, linux-fbdev
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
Writing MDP IRQ mask to the MDP IRQ register to fully disable interrupt. Authors: Dima Zavin [off-list ref] Rebecca Schultz Zavin [off-list ref] Colin Cross [off-list ref] Signed-off-by: Carl Vanderlip <redacted> --- 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);
--
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