From: Jiri.Pinkava@vscht.cz (Jiří Pinkava)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/6] n35: Update GPIO documentation for Acer n35
Date: Mon, 4 Oct 2010 02:25:41 +0200 [thread overview]
Message-ID: <4CA91F05.3040602@vscht.cz> (raw)
In-Reply-To: <4CA91EDA.80009@vscht.cz>
Signed-off-by: Jiri Pinkava <jiri.pinkava@vscht.cz>
---
arch/arm/mach-s3c2410/mach-n30.c | 12 +++++-------
1 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-s3c2410/mach-n30.c
b/arch/arm/mach-s3c2410/mach-n30.c
index e732619..abbb9b5 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -410,13 +410,11 @@ static struct s3c2410_platform_i2c __initdata
n30_i2ccfg = {
static void __init n30_hwinit(void)
{
/* GPA0-11 special functions -- unknown what they do
- * GPA12 N30 special function -- unknown what it does
- * N35/PiN output -- unknown what it does
- *
- * A12 is nGCS1 on the N30 and an output on the N35/PiN. I
- * don't think it does anything useful on the N30, so I ought
- * to make it an output there too since it always driven to 0
- * as far as I can tell. */
+ * GPA12 N30 special function (nGCS1) -- unknown what it does
+ * PiN output -- unknown function
+ * N35 output -- turn on/off red led, 0 = normal operation,
+ * 1 = turn off red led at all. Note: GPD9 must be input or
+ * output with value set to 1 before setting GPA12 to 0. */
if (machine_is_n30())
__raw_writel(0x007fffff, S3C2410_GPACON);
if (machine_is_n35())
--
1.7.3.1
next prev parent reply other threads:[~2010-10-04 0:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-04 0:23 [PATCH 0/6] - Acer n35 fixes and features Jiří Pinkava
2010-10-04 0:24 ` [PATCH 1/6] n35: fix key codes and types Jiří Pinkava
2010-10-04 0:25 ` Jiří Pinkava [this message]
2010-10-04 0:26 ` PATCH 3/6] n30: Clean up UARTs configuration Jiří Pinkava
2010-10-04 0:29 ` [PATCH 4/6] n30: Fix MMC power management Jiří Pinkava
2010-10-04 0:31 ` [PATCH 5/6] n30: Add touchscreen support for Ace n35 Jiří Pinkava
2010-10-04 0:32 ` [PATCH 6/6] n35: Add LCD backlight regulation Jiří Pinkava
2010-10-10 23:38 ` [PATCH 1/6] n35: fix key codes and types Ben Dooks
2010-10-13 7:49 ` Jiří Pinkava
2010-10-06 22:25 ` [PATCH 0/6] - Acer n35 fixes and features Ben Dooks
2010-10-10 23:43 ` Ben Dooks
2010-10-13 7:56 ` [PATCH 1/6] n35: fix key codes Jiri.Pinkava at vscht.cz
2010-10-13 7:56 ` [PATCH 2/6] n35: Update GPIO documentation for Acer n35 Jiri.Pinkava at vscht.cz
2010-10-13 7:56 ` [PATCH 3/6] n30: Clean up UARTs configuration Jiri.Pinkava at vscht.cz
2010-10-13 7:56 ` [PATCH 4/6] n30: Fix MMC power management on Acer n30 / n35 Jiri.Pinkava at vscht.cz
2010-10-13 7:56 ` [PATCH 5/6] n30: Add touchscreen support for " Jiri.Pinkava at vscht.cz
2010-10-13 7:56 ` [PATCH 6/6] n35: Add LCD backlight regulation on Acer n35 Jiri.Pinkava at vscht.cz
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