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Atmel LCD driver GUARDTIME fix

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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>
This commit is contained in:
Mark Jackson 2009-06-29 15:59:10 +01:00 committed by Anatolij Gustschin
parent 3e88337b22
commit 6bbced6717
1 changed files with 5 additions and 2 deletions
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7
drivers/video/atmel_lcdfb.c
View file

@ -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)