Forces the lcdc off and waits a frame vsync period to prevent the MDP DMA engine crashing if the DMA bit depth is changed. A sleep cannot be used because lcdc_dma_start is called in irq context. Authors: Dima Zavin <dima@xxxxxxxxxxx> Rebecca Schultz Zavin <rebecca@xxxxxxxxxxx> Colin Cross <ccross@xxxxxxxxxxx> Signed-off-by: Carl Vanderlip <carlv@xxxxxxxxxxxxxx> --- drivers/video/msm/mdp.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c index b3f334ad..49d956a 100644 --- a/drivers/video/msm/mdp.c +++ b/drivers/video/msm/mdp.c @@ -564,6 +564,13 @@ void mdp_hw_init(struct mdp_info *mdp) mdp_writel(mdp, 1, 0x60); mdp_writel(mdp, 1, MDP_EBI2_PORTMAP_MODE); + /* disable lcdc */ + mdp_writel(mdp, 0, MDP_LCDC_CTL); + /* enable auto clock gating for all blocks by default */ + mdp_writel(mdp, 0xffffffff, MDP_CGC_EN); + /* reset color/gamma correct parms */ + mdp_writel(mdp, 0, MDP_DMA_P_COLOR_CORRECT_CONFIG); + mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01f8); mdp_writel(mdp, 0, MDP_CMD_DEBUG_ACCESS_BASE + 0x01fc); mdp_writel(mdp, 1, 0x60); -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
