[s3c24xx] Get rid of gpio shadowing.

[openwrt/svn-archive/archive.git] / target / linux / s3c24xx / files-2.6.30 / arch / arm / mach-s3c2442 / gta02-shadow.c

diff --git a/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-shadow.c b/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-shadow.c
deleted file mode 100644 (file)
index c65304a..0000000
--- a/target/linux/s3c24xx/files-2.6.30/arch/arm/mach-s3c2442/gta02-shadow.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Common utility code for GTA02
- *
- * Copyright (C) 2008 by Openmoko, Inc.
- * Author: Holger Hans Peter Freyther <freyther@openmoko.org>
- * All rights reserved.
- *
- * 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
- *
- */
-
-#include <linux/module.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-
-#include <asm/gpio.h>
-#include <mach/regs-gpio.h>
-#include <linux/gta02-shadow.h>
-
-/**
- * Shadow GPIO bank B handling. For the LEDs we need to keep track of the state
- * in software. The s3c2410_gpio_setpin must not be used for GPIOs on bank B
- */
-static unsigned long gpb_mask;
-static unsigned long gpb_state;
-
-void gta02_gpb_add_shadow_gpio(unsigned int gpio)
-{
-       unsigned long offset = S3C2410_GPIO_OFFSET(gpio);
-       unsigned long flags;
-
-       local_irq_save(flags);
-       gpb_mask |= 1L << offset;
-       local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gta02_gpb_add_shadow_gpio);
-
-static void set_shadow_gpio(unsigned long offset, unsigned int value)
-{
-       unsigned long state = value != 0;
-
-       gpb_state &= ~(1L << offset);
-       gpb_state |= state << offset;
-}
-
-void gta02_gpb_setpin(unsigned int pin, unsigned to)
-{
-       void __iomem *base = S3C24XX_GPIO_BASE(S3C2410_GPB0);
-       unsigned long offset = S3C2410_GPIO_OFFSET(pin);
-       unsigned long flags;
-       unsigned long dat;
-
-       BUG_ON(base != S3C24XX_GPIO_BASE(pin));
-
-       local_irq_save(flags);
-       dat = __raw_readl(base + 0x04);
-
-       /* Add the shadow values */
-       dat &= ~gpb_mask;
-       dat |= gpb_state;
-
-       /* Do the operation like s3c2410_gpio_setpin */
-       dat &= ~(1L << offset);
-       dat |= to << offset;
-
-       /* Update the shadow state */
-       if ((1L << offset) & gpb_mask)
-               set_shadow_gpio(offset, to);
-
-       __raw_writel(dat, base + 0x04);
-       local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gta02_gpb_setpin);