Update "var" pixclock with the value that is configurable in hardware.
This lets user know the actual pixclock.
Signed-off-by: Afzal Mohammed <afzal@xxxxxx>
---
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
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