linux-kernel - [PATCH 1/2] gpio: enable SUS_GPIO[3:0] resume powered gpio, explicitly on Intel SCH.

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Date:	Sun, 12 Feb 2012 18:42:20 +0200
From:	Denis Turischev <denis@...pulab.co.il>
To:	Grant Likely <grant.likely@...retlab.ca>
CC:	Linus Walleij <linus.walleij@...ricsson.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] gpio: enable SUS_GPIO[3:0] resume powered gpio, explicitly
 on Intel SCH.

Resume powered gpio pins SUS_GPIO[3:0] on Intel SCH may be
disabled by BIOS setting, need to enable them explicitly.

Signed-off-by: Denis Turischev <denis@...pulab.co.il>
---
 drivers/gpio/gpio-sch.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
index 8cadf4d..f287016 100644
--- a/drivers/gpio/gpio-sch.c
+++ b/drivers/gpio/gpio-sch.c
@@ -218,10 +218,9 @@ static int __devinit sch_gpio_probe(struct platform_device *pdev)
 			 */
 			outb(0x3, gpio_ba + CGEN + 1);
 			/*
-			 * SUS_GPIO[2:0] enabled by default
-			 * Enable SUS_GPIO3 resume powered gpio explicitly
+			 * Enable SUS_GPIO[3:0] resume powered gpio explicitly
 			 */
-			outb(0x8, gpio_ba + RGEN);
+			outb(0xF, gpio_ba + RGEN);
 			break;
 
 		case PCI_DEVICE_ID_INTEL_ITC_LPC:
-- 
1.7.5.4

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