ARM: RX-51: Enable isp1704 power on/off

The isp1704 usb tranceiver is used for charging and can be
disabled when not in use. Provide the powering routine to
the driver via platform data.

Also changed the indent of ".name" variable in rx51_charger_device
definition to use tabs same way as the new ".dev" variable indent.
Put this in the same patch since the indent fix is only needed
when there are multiple members in the struct definition.

Loosely based on earlier patches from Heikki Krogerus in
Nokia N900 maemo kernel.

Signed-off-by: Kalle Jokiniemi <kalle.jokiniemi@nokia.com>
Acked-By: Heikki Krogerus <heikki.krogerus@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 25 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index bbcb6775a6a3..fad98abd4844 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -23,6 +23,7 @@
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
 #include <linux/mmc/host.h>
+#include <linux/power/isp1704_charger.h>
 
 #include <plat/mcspi.h>
 #include <plat/board.h>
@@ -52,6 +53,8 @@
 #define RX51_FMTX_RESET_GPIO            163
 #define RX51_FMTX_IRQ                   53
 
+#define RX51_USB_TRANSCEIVER_RST_GPIO   67
+
 /* list all spi devices here */
 enum {
         RX51_SPI_WL1251,
@@ -110,10 +113,30 @@ static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
         },
 };
 
+static void rx51_charger_set_power(bool on)
+{
+        gpio_set_value(RX51_USB_TRANSCEIVER_RST_GPIO, on);
+}
+
+static struct isp1704_charger_data rx51_charger_data = {
+        .set_power      = rx51_charger_set_power,
+};
+
 static struct platform_device rx51_charger_device = {
-        .name = "isp1704_charger",
+        .name   = "isp1704_charger",
+        .dev    = {
+                .platform_data = &rx51_charger_data,
+        },
 };
 
+static void __init rx51_charger_init(void)
+{
+        WARN_ON(gpio_request_one(RX51_USB_TRANSCEIVER_RST_GPIO,
+                GPIOF_OUT_INIT_LOW, "isp1704_reset"));
+
+        platform_device_register(&rx51_charger_device);
+}
+
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 
 #define RX51_GPIO_CAMERA_LENS_COVER     110
@@ -981,6 +1004,6 @@ void __init rx51_peripherals_init(void)
         if (partition)
                 omap2_hsmmc_init(mmc);
 
-        platform_device_register(&rx51_charger_device);
+        rx51_charger_init();
 }