[PATCH 1/6] ARM: OMAP3: Enable Hardware Save and Restore for USB Host

Roger Quadros
2013-07-10T16:17:56Z

To ensure hardware context is restored while resuming from
OFF mode we need to enable the Hardware SAR bit for the
USB Host power domain.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
arch/arm/mach-omap2/powerdomains3xxx_data.c | 8 +-------
1 files changed, 1 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c
index e2d4bd8..7b44d1f 100644
--- a/arch/arm/mach-omap2/powerdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c
@@ -289,13 +289,7 @@ static struct powerdomain usbhost_pwrdm = {
.prcm_offs = OMAP3430ES2_USBHOST_MOD,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRSTS_RET,
- /*
- * REVISIT: Enabling usb host save and restore mechanism seems to
- * leave the usb host domain permanently in ACTIVE mode after
- * changing the usb host power domain state from OFF to active once.
- * Disabling for now.
- */
- /*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
+ .flags = PWRDM_HAS_HDWR_SAR, /* for USBHOST ctrlr only */
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRSTS_RET, /* MEMRETSTATE */
--
1.7.4.1