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authorPatrick Glass <patrickglass@gmail.com>2008-08-18 14:41:30 -0700
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 16:18:41 +0100
commit9fa32c6b0275ab1e8b19f74fbfa3ed8411345db6 (patch)
tree28a3b9705a31bf634e65595ca760e33e768da778 /include
parent5d9a76cd0ed367d01b0b237253adb7607e86a277 (diff)
MIPS: PMC MSP71XX gpio drivers
This new gpio driver for PMC-Sierra's MSP71xx SoC allows standard api calls for access to the general and extended gpio's. Signed-off-by: Patrick Glass <patrickglass@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100755 arch/mips/pmc-sierra/msp71xx/gpio.c create mode 100755 arch/mips/pmc-sierra/msp71xx/gpio_extended.c create mode 100755 include/asm-mips/pmc-sierra/msp71xx/gpio.h
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/pmc-sierra/msp71xx/gpio.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/asm-mips/pmc-sierra/msp71xx/gpio.h b/include/asm-mips/pmc-sierra/msp71xx/gpio.h
new file mode 100644
index 00000000000..ebdbab973e4
--- /dev/null
+++ b/include/asm-mips/pmc-sierra/msp71xx/gpio.h
@@ -0,0 +1,46 @@
+/*
+ * include/asm-mips/pmc-sierra/msp71xx/gpio.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * @author Patrick Glass <patrickglass@gmail.com>
+ */
+
+#ifndef __PMC_MSP71XX_GPIO_H
+#define __PMC_MSP71XX_GPIO_H
+
+/* Max number of gpio's is 28 on chip plus 3 banks of I2C IO Expanders */
+#define ARCH_NR_GPIOS (28 + (3 * 8))
+
+/* new generic GPIO API - see Documentation/gpio.txt */
+#include <asm-generic/gpio.h>
+
+#define gpio_get_value __gpio_get_value
+#define gpio_set_value __gpio_set_value
+#define gpio_cansleep __gpio_cansleep
+
+/* Setup calls for the gpio and gpio extended */
+extern void msp71xx_init_gpio(void);
+extern void msp71xx_init_gpio_extended(void);
+extern int msp71xx_set_output_drive(unsigned gpio, int value);
+
+/* Custom output drive functionss */
+static inline int gpio_set_output_drive(unsigned gpio, int value)
+{
+ return msp71xx_set_output_drive(gpio, value);
+}
+
+/* IRQ's are not supported for gpio lines */
+static inline int gpio_to_irq(unsigned gpio)
+{
+ return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+ return -EINVAL;
+}
+
+#endif /* __PMC_MSP71XX_GPIO_H */