From: Subramani Venkatesh Date: Tue, 22 Dec 2009 09:37:50 +0000 (+0530) Subject: OMAP3: PM: DSS PM_WKEN to refill DMA X-Git-Tag: firefly_0821_release~9833^2~3305^2~2^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b92c5721d28507738d294e9a582eb6232ec6abad;p=firefly-linux-kernel-4.4.55.git OMAP3: PM: DSS PM_WKEN to refill DMA Currently, DSS does not wakeup when there is a DMA request. DSS wake up event must be enabled so that the DMA request to refill the FIFO will wake up the CORE domain. Signed-off-by: Subramani Venkatesh Signed-off-by: Kevin Hilman --- diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 31762ca9f117..910a7acf542d 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -890,6 +890,10 @@ static void __init prcm_setup_regs(void) prm_write_mod_reg(OMAP3430_IO_EN | OMAP3430_WKUP_EN, OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); + /* Enable PM_WKEN to support DSS LPR */ + prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS, + OMAP3430_DSS_MOD, PM_WKEN); + /* Enable wakeups in PER */ prm_write_mod_reg(OMAP3430_EN_GPIO2 | OMAP3430_EN_GPIO3 | OMAP3430_EN_GPIO4 | OMAP3430_EN_GPIO5 |