From: Denis Turischev <denis@compulab.co.il>
To: Grant Likely <grant.likely@secretlab.ca>
Cc: Linus Walleij <linus.walleij@stericsson.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] gpio: enable SUS_GPIO[3:0] resume powered gpio, explicitly on Intel SCH.
Date: Sun, 12 Feb 2012 18:42:20 +0200 [thread overview]
Message-ID: <4F37EBEC.8060209@compulab.co.il> (raw)
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@compulab.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
next reply other threads:[~2012-02-12 16:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-12 16:42 Denis Turischev [this message]
2012-02-12 16:45 ` [PATCH 2/2] gpio: optimise gpio functionality in gpio-sch.c Denis Turischev
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