/*!
* @brief Disable LCD controller.
* @param info framebuffer information pointer
*/
static void _disable_lcdc(struct fb_info *info)
{
struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
if (mx2fbi->type == MX2FB_TYPE_GW)
_disable_graphic_window(info);
else {
if (fb_enabled) {
gpio_lcdc_inactive();
board_power_lcd(0);
clk_disable(lcdc_clk);
fb_enabled = 0;
}
#ifdef CONFIG_FB_MXC_TVOUT
if (fb_mode) {
int enable = 0;
if ((strcmp(fb_mode, MODE_VGA) == 0)
|| (strcmp(fb_mode, MODE_NTSC) == 0)
|| (strcmp(fb_mode, MODE_PAL) == 0))
fs453_ioctl(ENCODER_ENABLE_OUTPUT, &enable);
}
#endif
}
}
/*!
* @brief Enable LCD controller.
* @param info framebuffer information pointer
*/
static void _enable_lcdc(struct fb_info *info)
{
static int first_enable = 1;
struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
/*
* Graphic window can only be enabled while the HCLK to the LCDC
* is disabled. Once enabled it can subsequently be disabled and
* enabled without turning off the HCLK.
* The graphic window is enabled and then disabled here. So next
* time to enable graphic window the HCLK to LCDC does not need
* to be disabled, and the flicker (due to disabling of HCLK to
* LCDC) is avoided.
*/
if (first_enable) {
_enable_graphic_window(info);
_disable_graphic_window(info);
first_enable = 0;
}
if (mx2fbi->type == MX2FB_TYPE_GW)
_enable_graphic_window(info);
else if (!fb_enabled) {
clk_enable(lcdc_clk);
gpio_lcdc_active();
board_power_lcd(1);
_set_brightness(brightness);
fb_enabled++;
#ifdef CONFIG_FB_MXC_TVOUT
if (fb_mode) {
unsigned long mode = 0;
if (strcmp(fb_mode, MODE_VGA) == 0)
mode = VIDEO_ENCODER_VGA;
else if (strcmp(fb_mode, MODE_NTSC) == 0)
mode = VIDEO_ENCODER_NTSC;
else if (strcmp(fb_mode, MODE_PAL) == 0)
mode = VIDEO_ENCODER_PAL;
if (mode)
fs453_ioctl(ENCODER_SET_NORM, &mode);
}
#endif
}
}
