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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2010-11-02 11:27:16 +0000
committerPaul Mundt <lethal@linux-sh.org>2010-11-10 17:23:54 +0900
commitc36940e678fc30779c99246c034deca1fed61ae4 (patch)
tree88158e04b5b516a35965dad1f58686d0be735844 /include/video
parent5fd284e6cd39f731db86dfd2440553365d5fad4d (diff)
fbdev: sh_mobile_hdmi: add support for more precise HDMI clock configuration
The HDMI clock has to be reconfigured for different video modes. However, the precision of the supplying SoC clock on SH-Mobile systems is often insufficient. This patch allows to additionally reconfigure the parent clock to achieve the optimal HDMI clock frequency, in case this is supported by the platform. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/video')
-rw-r--r--include/video/sh_mobile_hdmi.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/video/sh_mobile_hdmi.h b/include/video/sh_mobile_hdmi.h
index 1e1aa54ab2e4..b56932927d0a 100644
--- a/include/video/sh_mobile_hdmi.h
+++ b/include/video/sh_mobile_hdmi.h
@@ -13,6 +13,7 @@
struct sh_mobile_lcdc_chan_cfg;
struct device;
+struct clk;
/*
* flags format
@@ -33,6 +34,8 @@ struct sh_mobile_hdmi_info {
struct sh_mobile_lcdc_chan_cfg *lcd_chan;
struct device *lcd_dev;
unsigned int flags;
+ long (*clk_optimize_parent)(unsigned long target, unsigned long *best_freq,
+ unsigned long *parent_freq);
};
#endif