Re: [PATCH] video: s3c-fb: add runtime_get/put to suspend/resume
From: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Date: 2012-04-23 06:15:19
On 04/04/2012 06:57 AM, Jingoo Han wrote:
This patch adds runtime_get/put to suspend/resume, which should be necessary to prevent the problem to access the fimd register without block power on. Signed-off-by: Jingoo Han <redacted>
Applied. Thanks, Florian Tobias Schandinat
quoted hunk ↗ jump to hunk
--- drivers/video/s3c-fb.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c index f310516..76f3cf2 100644 --- a/drivers/video/s3c-fb.c +++ b/drivers/video/s3c-fb.c@@ -1564,6 +1564,8 @@ static int s3c_fb_suspend(struct device *dev) struct s3c_fb_win *win; int win_no; + pm_runtime_get_sync(sfb->dev); + for (win_no = S3C_FB_MAX_WIN - 1; win_no >= 0; win_no--) { win = sfb->windows[win_no]; if (!win)@@ -1577,6 +1579,9 @@ static int s3c_fb_suspend(struct device *dev) clk_disable(sfb->lcd_clk); clk_disable(sfb->bus_clk); + + pm_runtime_put_sync(sfb->dev); + return 0; }@@ -1589,6 +1594,8 @@ static int s3c_fb_resume(struct device *dev) int win_no; u32 reg; + pm_runtime_get_sync(sfb->dev); + clk_enable(sfb->bus_clk); if (!sfb->variant.has_clksel)@@ -1633,6 +1640,8 @@ static int s3c_fb_resume(struct device *dev) s3c_fb_set_par(win->fbinfo); } + pm_runtime_put_sync(sfb->dev); + return 0; } #endif