From: Roger Quadros <rogerq@ti.com>
To: stern@rowland.harvard.edu
Cc: gregkh@linuxfoundation.org, balbi@ti.com,
sergei.shtylyov@cogentembedded.com, khilman@linaro.org,
tony@atomide.com, ruslan.bilovol@ti.com,
linux-usb@vger.kernel.org, linux-omap@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Roger Quadros <rogerq@ti.com>
Subject: [PATCH 1/6] ARM: OMAP3: Enable Hardware Save and Restore for USB Host
Date: Wed, 10 Jul 2013 19:17:56 +0300 [thread overview]
Message-ID: <1373473081-27181-2-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1373473081-27181-1-git-send-email-rogerq@ti.com>
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
next prev parent reply other threads:[~2013-07-10 16:17 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-10 16:17 [PATCH 0/6] USB: Implement runtime idling and remote wakeup for OMAP EHCI controller Roger Quadros
2013-07-10 16:17 ` Roger Quadros [this message]
2013-07-10 16:22 ` [PATCH 2/6] ARM: dts: omap3beagle-xm: Add idle state pins for USB host Roger Quadros
2013-07-10 16:22 ` [PATCH 3/6] mfd: omap-usb-host: move initialization to module_init() Roger Quadros
2013-07-10 16:23 ` [PATCH 4/6] mfd: omap-usb-host: Put pins in IDLE state on suspend Roger Quadros
2013-07-14 13:22 ` Kevin Hilman
2013-07-15 8:23 ` Roger Quadros
2013-07-10 16:23 ` [PATCH 5/6] USB: Support wakeup IRQ for suspended controllers Roger Quadros
2013-07-10 18:45 ` Alan Stern
2013-07-11 7:30 ` Roger Quadros
2013-07-10 19:08 ` Alan Stern
2013-07-11 7:30 ` Roger Quadros
2013-07-10 16:23 ` [PATCH 6/6] USB: ehci-omap: Implement suspend/resume Roger Quadros
2013-07-10 19:04 ` Alan Stern
2013-07-11 8:50 ` Roger Quadros
[not found] ` <51DE71F3.1040101-l0cyMroinI0@public.gmane.org>
2013-07-11 15:14 ` Alan Stern
2013-07-22 13:16 ` Roger Quadros
2013-07-22 15:18 ` Alan Stern
2013-07-23 9:18 ` Roger Quadros
2013-07-23 14:14 ` Alan Stern
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