pcf50633_mfd.patch

pcf50633 driver rewritten to use the MFD model.

1 files changed, 62 insertions, 0 deletions

diff --git a/drivers/mfd/pcf50633-gpio.c b/drivers/mfd/pcf50633-gpio.c
new file mode 100644
index 00000000000..f71acbd6dbc
--- /dev/null
+++ b/drivers/mfd/pcf50633-gpio.c
@@ -0,0 +1,62 @@
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/gpio.h>
+
+void pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, int on)
+{
+	u8 reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
+
+	if (on)
+		pcf50633_reg_set_bit_mask(pcf, reg, 0x0f, 0x07);
+	else
+		pcf50633_reg_set_bit_mask(pcf, reg, 0x0f, 0x00);
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
+
+int pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
+{
+	u8 reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
+	u8 val = pcf50633_reg_read(pcf, reg) & 0x0f;
+
+	if (val == PCF50633_GPOCFG_GPOSEL_1 ||
+	    val == (PCF50633_GPOCFG_GPOSEL_0|PCF50633_GPOCFG_GPOSEL_INVERSE))
+		return 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
+
+int __init pcf50633_gpio_probe(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static int __devexit pcf50633_gpio_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+struct platform_driver pcf50633_gpio_driver = {
+	.driver = {
+		.name = "pcf50633-gpio",
+	},
+	.probe = pcf50633_gpio_probe,
+	.remove = __devexit_p(pcf50633_gpio_remove),
+};
+
+static int __init pcf50633_gpio_init(void)
+{
+		return platform_driver_register(&pcf50633_gpio_driver);
+}
+module_init(pcf50633_gpio_init);
+
+static void __exit pcf50633_gpio_exit(void)
+{
+		platform_driver_unregister(&pcf50633_gpio_driver);
+}
+module_exit(pcf50633_gpio_exit);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50633 gpio driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-gpio");
+