Piteball/android_kernel_samsung_msm8976
1
1
Fork 0
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git synced 2024-09-30 16:54:56 +00:00
Code Issues Projects Releases Wiki Activity

ARM: OMAP: Sleep is prevented when no LCD is attached

Browse source 
We have to make sure that the LCD DMA external destination bit is
cleared by default, otherwise OMAP won't sleep.

Signed-off-by: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Imre Deak 2006-09-25 12:41:28 +03:00 committed by Tony Lindgren
parent 5a4e86daa2
commit b5beef5d5d
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
arch/arm/plat-omap/dma.c
View file

@ -1339,6 +1339,14 @@ static int __init omap_init_dma(void)
dma_chan_count = 16;
} else
dma_chan_count = 9;
if (cpu_is_omap16xx()) {
u16 w;
/* this would prevent OMAP sleep */
w = omap_readw(OMAP1610_DMA_LCD_CTRL);
w &= ~(1 << 8);
omap_writew(w, OMAP1610_DMA_LCD_CTRL);
}
} else if (cpu_is_omap24xx()) {
u8 revision = omap_readb(OMAP_DMA4_REVISION);
printk(KERN_INFO "OMAP DMA hardware revision %d.%d\n",