File linux-2.6-omap-rx51-Don-t-power-up-speaker-amplifier-at-bootup.patch of Package kernel-adaptation-n900

File linux-2.6-omap-rx51-Don-t-power-up-speaker-amplifier-at-bootup.patch of Package kernel-adaptation-n900 (Revision 719a0413fb6e1438eeb2510db72083f7)

Currently displaying revision 719a0413fb6e1438eeb2510db72083f7, show latest

From a6e5d76226334bb299edc1e59ebcc9c4bdcd9980 Mon Sep 17 00:00:00 2001
From: ext Jarkko Nikula <jhnikula@gmail.com>
Date: Thu, 12 May 2011 14:30:58 +0300
Subject: [PATCH] omap: rx51: Don't power up speaker amplifier at bootup

Speaker amplifier is accidentally powered up in early TWL gpio setup. This
causes a few mA of needless battery current consumption. Without this patch
the amplifier can be shutdown only by having one active audio playback and
shutdown cycle to speaker output.

Thanks to Kalle Jokiniemi <kalle.jokiniemi@nokia.com> for noticing the issue.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Kalle Jokiniemi <kalle.jokiniemi@nokia.com>
---
 arch/arm/mach-omap2/board-rx51-peripherals.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index e9f2cd2..9481a59 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -846,7 +846,7 @@ static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
 	gpio_request(gpio + 6, "backlight_pwm");
 	gpio_direction_output(gpio + 6, 0);
 	gpio_request(gpio + 7, "speaker_en");
-	gpio_direction_output(gpio + 7, 1);
+	gpio_direction_output(gpio + 7, 0);
 
 	return 0;
 }
-- 
1.7.0.4