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rk3188 lcdc:support set fps by sys

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This commit is contained in:
yxj
2013-02-19 10:18:21 +08:00
parent 7ff013247a
commit 9acd972b65
1 changed files with 25 additions and 2 deletions
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27
drivers/video/rockchip/lcdc/rk3188_lcdc.c
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@@ -646,7 +646,7 @@ static int win1_set_par(struct rk3188_lcdc_device *lcdc_dev,rk_screen *screen,
lcdc_msk_reg(lcdc_dev, WIN_VIR,m_WIN1_VIR,v_WIN1_RGB888_VIRWIDTH(xvir));
lcdc_msk_reg(lcdc_dev,ALPHA_CTRL,m_WIN1_ALPHA_EN,v_WIN1_ALPHA_EN(0));
lcdc_msk_reg(lcdc_dev,SYS_CTRL,m_WIN1_RB_SWAP,v_WIN1_RB_SWAP(0));
// lcdc_msk_reg(lcdc_dev,SYS_CTRL1,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
//lcdc_msk_reg(lcdc_dev,SYS_CTRL1,m_W1_RGB_RB_SWAP,v_W1_RGB_RB_SWAP(1));
break;
case RGB565: //rgb565
fmt_cfg = 2;
@@ -1147,11 +1147,34 @@ static int rk3188_lcdc_fps_mgr(struct rk_lcdc_device_driver *dev_drv,int fps,boo
{
struct rk3188_lcdc_device *lcdc_dev =
container_of(dev_drv,struct rk3188_lcdc_device,driver);
rk_screen * screen = dev_drv->cur_screen;
u64 ft = 0;
u32 dotclk;
int ret;
u32 pixclock;
if(set)
{
ft = div_u64(1000000000000llu,fps);
dev_drv->pixclock = div_u64(ft,(screen->upper_margin + screen->lower_margin + screen->y_res +screen->vsync_len)*
(screen->left_margin + screen->right_margin + screen->x_res + screen->hsync_len));
dotclk = div_u64(1000000000000llu,dev_drv->pixclock);
ret = clk_set_rate(lcdc_dev->dclk, dotclk);
if(ret)
{
printk(KERN_ERR ">>>>>> set lcdc%d dclk failed\n",lcdc_dev->id);
return 0;
}
}
u32 pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
pixclock = div_u64(1000000000000llu, clk_get_rate(lcdc_dev->dclk));
dev_drv->pixclock = lcdc_dev->pixclock = pixclock;
fps = rk_fb_calc_fps(lcdc_dev->screen,pixclock);
screen->ft = 1000/fps ; //one frame time in ms
if(set)
dev_info(dev_drv->dev,"%s:dclk:%lu,fps:%d\n",__func__,clk_get_rate(lcdc_dev->dclk),fps);
return fps;
}