This patch allows the guard time parameter to be set in the Atmel LCDC driver.
By default, the previous value of 1 is used, unless the setting is defined elsewhere.
Signed-off-by: Mark Jackson mpfj@mimc.co.uk --- drivers/video/atmel_lcdfb.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 3a51cc7..db86763 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -42,6 +42,9 @@ short console_row; /* configurable parameters */ #define ATMEL_LCDC_CVAL_DEFAULT 0xc8 #define ATMEL_LCDC_DMA_BURST_LEN 8 +#ifndef ATMEL_LCDC_GUARD_TIME +#define ATMEL_LCDC_GUARD_TIME 1 +#endif
#if defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91CAP9) #define ATMEL_LCDC_FIFO_SIZE 2048 @@ -69,7 +72,7 @@ void lcd_ctrl_init(void *lcdbase)
/* Turn off the LCD controller and the DMA controller */ lcdc_writel(panel_info.mmio, ATMEL_LCDC_PWRCON, - 1 << ATMEL_LCDC_GUARDT_OFFSET); + ATMEL_LCDC_GUARD_TIME << ATMEL_LCDC_GUARDT_OFFSET);
/* Wait for the LCDC core to become idle */ while (lcdc_readl(panel_info.mmio, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY) @@ -150,7 +153,7 @@ void lcd_ctrl_init(void *lcdbase)
lcdc_writel(panel_info.mmio, ATMEL_LCDC_DMACON, ATMEL_LCDC_DMAEN); lcdc_writel(panel_info.mmio, ATMEL_LCDC_PWRCON, - (1 << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR); + (ATMEL_LCDC_GUARD_TIME << ATMEL_LCDC_GUARDT_OFFSET) | ATMEL_LCDC_PWR); }
ulong calc_fbsize(void)