viafb: Turn GPIO and i2c into proper platform devices
Another step toward making this thing a real multifunction device driver.
Cc: ScottFang@viatech.com.cn
Cc: JosephChan@via.com.tw
Cc: Harald Welte <laforge@gnumonks.org>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/drivers/video/via/via-gpio.c b/drivers/video/via/via-gpio.c
index 6b36117..44537be 100644
--- a/drivers/video/via/via-gpio.c
+++ b/drivers/video/via/via-gpio.c
@@ -7,6 +7,7 @@
#include <linux/spinlock.h>
#include <linux/gpio.h>
+#include <linux/platform_device.h>
#include "via-core.h"
#include "via-gpio.h"
#include "global.h"
@@ -172,12 +173,27 @@
via_write_reg_mask(VIASR, gpio->vg_port_index, 0, 0x02);
}
-
-
-
-int viafb_create_gpios(struct viafb_dev *vdev,
- const struct via_port_cfg *port_cfg)
+/*
+ * Look up a specific gpio and return the number it was assigned.
+ */
+int viafb_gpio_lookup(const char *name)
{
+ int i;
+
+ for (i = 0; i < gpio_config.gpio_chip.ngpio; i++)
+ if (!strcmp(name, gpio_config.active_gpios[i]->vg_name))
+ return gpio_config.gpio_chip.base + i;
+ return -1;
+}
+EXPORT_SYMBOL_GPL(viafb_gpio_lookup);
+
+/*
+ * Platform device stuff.
+ */
+static __devinit int viafb_gpio_probe(struct platform_device *platdev)
+{
+ struct viafb_dev *vdev = platdev->dev.platform_data;
+ struct via_port_cfg *port_cfg = vdev->port_cfg;
int i, ngpio = 0, ret;
struct viafb_gpio *gpio;
unsigned long flags;
@@ -222,11 +238,10 @@
gpio_config.gpio_chip.ngpio = 0;
}
return ret;
-/* Port enable ? */
}
-int viafb_destroy_gpios(void)
+static int viafb_gpio_remove(struct platform_device *platdev)
{
unsigned long flags;
int ret = 0, i;
@@ -253,16 +268,20 @@
return ret;
}
-/*
- * Look up a specific gpio and return the number it was assigned.
- */
-int viafb_gpio_lookup(const char *name)
-{
- int i;
+static struct platform_driver via_gpio_driver = {
+ .driver = {
+ .name = "viafb-gpio",
+ },
+ .probe = viafb_gpio_probe,
+ .remove = viafb_gpio_remove,
+};
- for (i = 0; i < gpio_config.gpio_chip.ngpio; i++)
- if (!strcmp(name, gpio_config.active_gpios[i]->vg_name))
- return gpio_config.gpio_chip.base + i;
- return -1;
+int viafb_gpio_init(void)
+{
+ return platform_driver_register(&via_gpio_driver);
}
-EXPORT_SYMBOL_GPL(viafb_gpio_lookup);
+
+void viafb_gpio_exit(void)
+{
+ platform_driver_unregister(&via_gpio_driver);
+}