diff options
Diffstat (limited to 'drivers/video/atmel_lcdfb.c')
| -rw-r--r-- | drivers/video/atmel_lcdfb.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 2830ffd72976..d5e801076d33 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -484,6 +484,7 @@ static int atmel_lcdfb_set_par(struct fb_info *info) unsigned long value; unsigned long clk_value_khz; unsigned long bits_per_line; + unsigned long pix_factor = 2; might_sleep(); @@ -516,20 +517,24 @@ static int atmel_lcdfb_set_par(struct fb_info *info) /* Now, the LCDC core... */ /* Set pixel clock */ + if (cpu_is_at91sam9g45() && !cpu_is_at91sam9g45es()) + pix_factor = 1; + clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000; value = DIV_ROUND_UP(clk_value_khz, PICOS2KHZ(info->var.pixclock)); - if (value < 2) { + if (value < pix_factor) { dev_notice(info->device, "Bypassing pixel clock divider\n"); lcdc_writel(sinfo, ATMEL_LCDC_LCDCON1, ATMEL_LCDC_BYPASS); } else { - value = (value / 2) - 1; + value = (value / pix_factor) - 1; dev_dbg(info->device, " * programming CLKVAL = 0x%08lx\n", value); lcdc_writel(sinfo, ATMEL_LCDC_LCDCON1, value << ATMEL_LCDC_CLKVAL_OFFSET); - info->var.pixclock = KHZ2PICOS(clk_value_khz / (2 * (value + 1))); + info->var.pixclock = + KHZ2PICOS(clk_value_khz / (pix_factor * (value + 1))); dev_dbg(info->device, " updated pixclk: %lu KHz\n", PICOS2KHZ(info->var.pixclock)); } |