From f1ad90da5c0fcb8841cc5e6d66c56f4005d8c960 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 11 Jul 2011 11:05:49 +0200 Subject: [PATCH] fbdev: sh_mobile_lcdc: Turn dot clock on before resuming from runtime PM Resuming from runtime PM restores all LCDC registers. If the dot clock is off at that time display panning information will be corrupted. Turn the dot clock on before resuming from runtime PM. Similarly, turn the clock off after suspending the LCDC. Signed-off-by: Laurent Pinchart Tested-by: Guennadi Liakhovetski --- drivers/video/sh_mobile_lcdcfb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index 2f921ad1855..913515908c5 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -256,9 +256,9 @@ struct sh_mobile_lcdc_sys_bus_ops sh_mobile_lcdc_sys_bus_ops = { static void sh_mobile_lcdc_clk_on(struct sh_mobile_lcdc_priv *priv) { if (atomic_inc_and_test(&priv->hw_usecnt)) { - pm_runtime_get_sync(priv->dev); if (priv->dot_clk) clk_enable(priv->dot_clk); + pm_runtime_get_sync(priv->dev); if (priv->meram_dev && priv->meram_dev->pdev) pm_runtime_get_sync(&priv->meram_dev->pdev->dev); } @@ -267,11 +267,11 @@ static void sh_mobile_lcdc_clk_on(struct sh_mobile_lcdc_priv *priv) static void sh_mobile_lcdc_clk_off(struct sh_mobile_lcdc_priv *priv) { if (atomic_sub_return(1, &priv->hw_usecnt) == -1) { - if (priv->dot_clk) - clk_disable(priv->dot_clk); if (priv->meram_dev && priv->meram_dev->pdev) pm_runtime_put_sync(&priv->meram_dev->pdev->dev); pm_runtime_put(priv->dev); + if (priv->dot_clk) + clk_disable(priv->dot_clk); } } -- 2.46.0