[PATCH v2 09/10] video: da8xx-fb: report correct pixclock
From: Afzal Mohammed <hidden>
Date: 2013-01-07 05:06:04
Also in:
linux-devicetree, linux-omap, lkml
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
Update "var" pixclock with the value that is configurable in hardware. This lets user know the actual pixclock. Signed-off-by: Afzal Mohammed <redacted> --- drivers/video/da8xx-fb.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 663b3c5..c7393f1 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c@@ -690,6 +690,15 @@ static inline unsigned da8xx_fb_calc_clk_divider(struct da8xx_fb_par *par, return par->lcd_fck_rate / (PICOS2KHZ(pixclock) * 1000); } +static inline unsigned da8xx_fb_round_clk(struct da8xx_fb_par *par, + unsigned pixclock) +{ + unsigned div; + + div = da8xx_fb_calc_clk_divider(par, pixclock); + return KHZ2PICOS(par->lcd_fck_rate / (1000 * div)); +} + static inline void da8xx_fb_config_clk_divider(unsigned div) { /* Configure the LCD clock divisor. */
@@ -966,6 +975,8 @@ static int fb_check_var(struct fb_var_screeninfo *var, if (var->yres + var->yoffset > var->yres_virtual) var->yoffset = var->yres_virtual - var->yres; + var->pixclock = da8xx_fb_round_clk(par, var->pixclock); + return err; }
--
1.7.9.5