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fb support mcu lcd panel

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钟勇汪
2010-06-17 08:41:56 +00:00
committed by 黄涛
parent 9406cc13a7
commit fee5cfdcd7
1 changed files with 51 additions and 23 deletions
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74
drivers/video/rk2818_fb.c
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@@ -32,6 +32,7 @@
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/earlysuspend.h>
#include <linux/cpufreq.h>
#include <asm/io.h>
@@ -74,6 +75,7 @@
#define LcdRdReg(inf, addr) (inf->preg->addr)
#define LcdSetBit(inf, addr, msk) inf->preg->addr=((inf->regbak.addr) |= (msk))
#define LcdClrBit(inf, addr, msk) inf->preg->addr=((inf->regbak.addr) &= ~(msk))
#define LcdSetRegBit(inf, addr, msk) inf->preg->addr=((inf->preg->addr) |= (msk))
#define LcdMskReg(inf, addr, msk, val) (inf->regbak.addr)&=~(msk); inf->preg->addr=(inf->regbak.addr|=(val))
@@ -167,6 +169,9 @@ struct rk2818fb_inf {
struct rk28fb_screen tv_info[5];
struct rk28fb_screen hdmi_info[2];
struct rk28fb_screen *cur_screen;
#ifdef CONFIG_CPU_FREQ
struct notifier_block freq_transition;
#endif
};
@@ -210,7 +215,6 @@ void set_lcd_pin(struct platform_device *pdev, int enable)
int lcd_standby_pol = (mach_info->gpio->lcd_standby>>16)&0xffff;
fbprintk(">>>>>> %s : %s \n", __FILE__, __FUNCTION__);
fbprintk(">>>>>> lcd_cs(%d) = %d \n", lcd_cs, enable ? lcd_cs_pol : !lcd_cs_pol);
fbprintk(">>>>>> display_on(%d) = %d \n", display_on, enable ? display_on_pol : !display_on_pol);
fbprintk(">>>>>> lcd_standby(%d) = %d \n", lcd_standby, enable ? lcd_standby_pol : !lcd_standby_pol);
@@ -272,7 +276,7 @@ int mcu_do_refresh(struct rk2818fb_inf *inf)
if(inf->cur_screen->refresh) inf->cur_screen->refresh(REFRESH_PRE);
inf->mcu_needflush = 0;
inf->mcu_isrcnt = 0;
LcdSetBit(inf, MCU_TIMING_CTRL, m_MCU_HOLDMODE_FRAME_ST);
LcdSetRegBit(inf, MCU_TIMING_CTRL, m_MCU_HOLDMODE_FRAME_ST);
}
}
return 0;
@@ -519,11 +523,6 @@ void load_screen(struct fb_info *info, bool initscreen)
v_OUTPUT_RB_SWAP(screen->swap_rb) | v_OUTPUT_RG_SWAP(screen->swap_rg) | v_DELTA_SWAP(screen->swap_delta) | v_DUMMY_SWAP(screen->swap_dumy));
// set horizontal & vertical out timing
if(IsMcuLandscape())
{
x_res = (screen->mcu_usefmk) ? (screen->y_res/2) : (screen->y_res);
y_res = screen->x_res;
}
if(SCREEN_MCU==inf->cur_screen->type)
{
right_margin = x_res/6;
@@ -552,10 +551,6 @@ void load_screen(struct fb_info *info, bool initscreen)
clk_set_parent(inf->dclk_divider, inf->dclk_parent);
clk_set_parent(inf->dclk, inf->dclk_divider);
//clk_set_parent(inf->dclk, inf->dclk_parent);
clk_rate = clk_get_rate(inf->dclk_parent);
dclk_rate = screen->pixclock * 1000000;
fbprintk(">>>>>> set lcdc dclk need %d HZ, clk_parent = %d hz \n ", screen->pixclock, clk_rate);
@@ -577,6 +572,38 @@ void load_screen(struct fb_info *info, bool initscreen)
screen->init();
}
}
#ifdef CONFIG_CPU_FREQ
/*
* CPU clock speed change handler. We need to adjust the LCD timing
* parameters when the CPU clock is adjusted by the power management
* subsystem.
*/
#define TO_INF(ptr,member) container_of(ptr,struct rk2818fb_inf,member)
static int
rk2818fb_freq_transition(struct notifier_block *nb, unsigned long val, void *data)
{
struct rk2818fb_inf *inf = TO_INF(nb, freq_transition);
struct rk28fb_screen *screen = inf->cur_screen;
u32 dclk_rate = 0;
switch (val)
{
case CPUFREQ_PRECHANGE:
break;
case CPUFREQ_POSTCHANGE:
{
dclk_rate = screen->pixclock * 1000000;
fbprintk(">>>>>> set lcdc dclk need %d HZ, clk_parent = %d hz \n ", screen->pixclock, dclk_rate);
clk_set_rate(inf->dclk_divider, dclk_rate);
break;
}
}
return 0;
}
#endif
static inline unsigned int chan_to_field(unsigned int chan,
struct fb_bitfield *bf)
@@ -759,11 +786,6 @@ static int win0fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
u16 ylcd = screen->y_res;
u16 yres = 0;
if(IsMcuLandscape())
{
xlcd = screen->y_res;
ylcd = screen->x_res;
}
fbprintk(">>>>>> %s : %s\n", __FILE__, __FUNCTION__);
@@ -1447,10 +1469,7 @@ static int win0fb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long ar
case FB1_IOCTL_GET_PANEL_SIZE: //get panel size
{
u32 panel_size[2];
if(IsMcuLandscape()) {
panel_size[0] = inf->cur_screen->y_res;
panel_size[1] = inf->cur_screen->x_res;
} else {
{
panel_size[0] = inf->cur_screen->x_res;
panel_size[1] = inf->cur_screen->y_res;
}
@@ -1531,6 +1550,8 @@ static int win0fb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long ar
case 270:
win0fb_rotate(info, 270);
break;
default:
return -1;
}
break;
case FB1_IOCTL_SET_I2P_ODD_ADDR:
@@ -2018,7 +2039,7 @@ static irqreturn_t rk2818fb_irq(int irq, void *dev_id)
inf->cur_screen->refresh(REFRESH_PRE);
inf->mcu_needflush = 0;
inf->mcu_isrcnt = 0;
LcdSetBit(inf, MCU_TIMING_CTRL, m_MCU_HOLDMODE_FRAME_ST);
LcdSetRegBit(inf, MCU_TIMING_CTRL, m_MCU_HOLDMODE_FRAME_ST);
} else {
if(inf->cur_screen->refresh)
inf->cur_screen->refresh(REFRESH_END);
@@ -2348,7 +2369,10 @@ static int __init rk2818fb_probe (struct platform_device *pdev)
ret = -ENOENT;
goto unregister_win1fb;
}
#ifdef CONFIG_CPU_FREQ
inf->freq_transition.notifier_call = rk2818fb_freq_transition;
cpufreq_register_notifier(&inf->freq_transition, CPUFREQ_TRANSITION_NOTIFIER);
#endif
fbprintk("got clock\n");
mach_info = pdev->dev.platform_data;
@@ -2521,7 +2545,11 @@ static int rk2818fb_remove(struct platform_device *pdev)
framebuffer_release(inf->win1fb);
inf->win1fb = NULL;
}
#ifdef CONFIG_CPU_FREQ
cpufreq_unregister_notifier(&inf->freq_transition, CPUFREQ_TRANSITION_NOTIFIER);
#endif
if (inf->clk)
{
clk_disable(inf->clk);