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Add gpio support to the BCM947xx platform

PATCH New Aurelien Jarno 1 participant 2 messages Sep 14, 2007 MIPS

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Aurelien Jarno

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#0 lore raw

Same as the previous patch, submitting it now as I don't want to miss the 2.6.24 merge window.

Add GPIO support to the BCM947xx platform. It will be used by a GPIO LED driver.

Signed-off-by Aurelien Jarno <[email protected]>
arch/mips/bcm947xx/gpio.c +79 -0
@@ -0,0 +1,79 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 Aurelien Jarno <[email protected]>
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+#include <linux/ssb/ssb_driver_extif.h>
+#include <asm/mach-bcm947xx/bcm947xx.h>
+#include <asm/mach-bcm947xx/gpio.h>
+
+int bcm947xx_gpio_to_irq(unsigned gpio)
+{
+	if (ssb_bcm947xx.chipco.dev)
+		return ssb_mips_irq(ssb_bcm947xx.chipco.dev) + 2;
+	else if (ssb_bcm947xx.extif.dev)
+		return ssb_mips_irq(ssb_bcm947xx.extif.dev) + 2;
+	else
+		return -EINVAL;
+}
+EXPORT_SYMBOL(bcm947xx_gpio_to_irq);
+
+int bcm947xx_gpio_get_value(unsigned gpio)
+{
+	if (ssb_bcm947xx.chipco.dev)
+		return ssb_chipco_gpio_in(&ssb_bcm947xx.chipco, 1 << gpio);
+	else if (ssb_bcm947xx.extif.dev)
+		return ssb_extif_gpio_in(&ssb_bcm947xx.extif, 1 << gpio);
+	else
+		return 0;
+}
+EXPORT_SYMBOL(bcm947xx_gpio_get_value);
+
+void bcm947xx_gpio_set_value(unsigned gpio, int value)
+{
+	if (ssb_bcm947xx.chipco.dev)
+		ssb_chipco_gpio_out(&ssb_bcm947xx.chipco,
+				    1 << gpio,
+				    value ? 1 << gpio : 0);
+	else if (ssb_bcm947xx.extif.dev)
+		ssb_extif_gpio_out(&ssb_bcm947xx.extif,
+				   1 << gpio,
+				   value ? 1 << gpio : 0);
+}
+EXPORT_SYMBOL(bcm947xx_gpio_set_value);
+
+int bcm947xx_gpio_direction_input(unsigned gpio)
+{
+	if (ssb_bcm947xx.chipco.dev && (gpio < BCM947XX_CHIPCO_GPIO_LINES))
+		ssb_chipco_gpio_outen(&ssb_bcm947xx.chipco,
+				      1 << gpio, 0);
+	else if (ssb_bcm947xx.extif.dev && (gpio < BCM947XX_EXTIF_GPIO_LINES))
+		ssb_extif_gpio_outen(&ssb_bcm947xx.extif,
+				     1 << gpio, 0);
+	else
+		return -EINVAL;
+	return 0;
+}
+EXPORT_SYMBOL(bcm947xx_gpio_direction_input);
+
+int bcm947xx_gpio_direction_output(unsigned gpio, int value)
+{
+	bcm947xx_gpio_set_value(gpio, value);
+
+	if (ssb_bcm947xx.chipco.dev && (gpio < BCM947XX_CHIPCO_GPIO_LINES))
+		ssb_chipco_gpio_outen(&ssb_bcm947xx.chipco,
+				      1 << gpio, 1 << gpio);
+	else if (ssb_bcm947xx.extif.dev && (gpio < BCM947XX_EXTIF_GPIO_LINES))
+		ssb_extif_gpio_outen(&ssb_bcm947xx.extif,
+				     1 << gpio, 1 << gpio);
+	else
+		return -EINVAL;
+	return 0;
+}
+EXPORT_SYMBOL(bcm947xx_gpio_direction_output);
+
arch/mips/bcm947xx/Makefile +1 -1
@@ -3,4 +3,4 @@
 # under Linux.
 #
 
-obj-y := irq.o prom.o serial.o setup.o time.o
+obj-y := gpio.o irq.o prom.o serial.o setup.o time.o
include/asm-mips/mach-bcm947xx/gpio.h +59 -0

59 lines not on this page · raw message

Signature · 4 lines
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   [email protected]         | [email protected]
   `-    people.debian.org/~aurel32 | www.aurel32.net
author
#1 lore raw

PATCH 3/3 GPIO LED driver for the WGT634U machine

Add LED support to the WGT634U machine. It uses the new gpio-led driver and a platform driver for the pin definitions.

Signed-off-by Aurelien Jarno <[email protected]>
arch/mips/bcm947xx/Makefile +1 -1
@@ -3,4 +3,4 @@
 # under Linux.
 #
 
-obj-y := gpio.o irq.o prom.o serial.o setup.o time.o
+obj-y := gpio.o irq.o prom.o serial.o setup.o time.o wgt634u.o
mips/bcm947xx/wgt634u.c +64 -0

64 lines not on this page · raw message

Signature · 4 lines
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   [email protected]         | [email protected]
   `-    people.debian.org/~aurel32 | www.aurel32.net