evie/android_kernel_oneplus_msm8998
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msm: mdss: fix frame rate calculation for resolution switch

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Current resolution switch calculation is using the wrong
values for the fps calculation.
Correct the values, by using the correct pixel clock
value and adjusting if dsc is enabled as well as
use the default fps, for panels where default frame
rate is not 60.

Change-Id: I4be0a9d5d163b0630e8cfeb930e72c32f487ccb1
Signed-off-by: Ingrid Gallardo <ingridg@codeaurora.org>
Signed-off-by: Sandeep Panda <spanda@codeaurora.org>
This commit is contained in:
Ingrid Gallardo 2016-03-22 17:14:39 -07:00 • committed by Kyle Yan
parent 43270c072e
commit 40783c97f5
2 changed files with 16 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/video/fbdev/msm/mdss_fb.c
View file

@ -3367,6 +3367,14 @@ static void mdss_fb_var_to_panelinfo(struct fb_var_screeninfo *var,
pinfo->clk_rate = var->pixclock;
else
pinfo->clk_rate = PICOS2KHZ(var->pixclock) * 1000;
/*
* if it is a DBA panel i.e. HDMI TV connected through
* DSI interface, then store the pixel clock value in
* DSI specific variable.
*/
if (pinfo->is_dba_panel)
pinfo->mipi.dsi_pclk_rate = pinfo->clk_rate;
}
void mdss_panelinfo_to_fb_var(struct mdss_panel_info *pinfo,

11
drivers/video/fbdev/msm/mdss_panel.h
View file

@ -956,12 +956,17 @@ static inline u8 mdss_panel_calc_frame_rate(struct mdss_panel_info *pinfo)
{
u32 pixel_total = 0;
u8 frame_rate = 0;
unsigned long pclk_rate = pinfo->clk_rate;
unsigned long pclk_rate = pinfo->mipi.dsi_pclk_rate;
u32 xres;
xres = pinfo->xres;
if (pinfo->compression_mode == COMPRESSION_DSC)
xres /= 3;
pixel_total = (pinfo->lcdc.h_back_porch +
pinfo->lcdc.h_front_porch +
pinfo->lcdc.h_pulse_width +
pinfo->xres) *
xres) *
(pinfo->lcdc.v_back_porch +
pinfo->lcdc.v_front_porch +
pinfo->lcdc.v_pulse_width +
@ -971,7 +976,7 @@ static inline u8 mdss_panel_calc_frame_rate(struct mdss_panel_info *pinfo)
frame_rate =
DIV_ROUND_CLOSEST(pclk_rate, pixel_total);
else
frame_rate = DEFAULT_FRAME_RATE;
frame_rate = pinfo->panel_max_fps;
return frame_rate;
}