u-boot/drivers/misc/twl4030_led.c
Grazvydas Ignotas ead39d7aa3 TWL4030: make LEDs selectable for twl4030_led_init()
Not all boards have both LEDs hooked, so enabling both on
boards with single LED will just waste power. Make it
possible to choose LEDs by adding argument to
twl4030_led_init().

Using this turn on only LEDB for pandora, leave both LEDs
on for all other boards, as it was before this patch.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
2010-01-04 08:48:15 -06:00

48 lines
1.5 KiB
C

/*
* Copyright (c) 2009 Wind River Systems, Inc.
* Tom Rix <Tom.Rix at windriver.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* twl4030_led_init is from cpu/omap3/common.c, power_init_r
*
* (C) Copyright 2004-2008
* Texas Instruments, <www.ti.com>
*
* Author :
* Sunil Kumar <sunilsaini05 at gmail.com>
* Shashi Ranjan <shashiranjanmca05 at gmail.com>
*
* Derived from Beagle Board and 3430 SDP code by
* Richard Woodruff <r-woodruff2 at ti.com>
* Syed Mohammed Khasim <khasim at ti.com>
*
*/
#include <twl4030.h>
void twl4030_led_init(unsigned char ledon_mask)
{
/* LEDs need to have corresponding PWMs enabled */
if (ledon_mask & TWL4030_LED_LEDEN_LEDAON)
ledon_mask |= TWL4030_LED_LEDEN_LEDAPWM;
if (ledon_mask & TWL4030_LED_LEDEN_LEDBON)
ledon_mask |= TWL4030_LED_LEDEN_LEDBPWM;
twl4030_i2c_write_u8(TWL4030_CHIP_LED, ledon_mask,
TWL4030_LED_LEDEN);
}