mfd: provide and use setup hook for tc6393xb

Instead of using bitfields for initial gpio setup,
provide generic setup/teardown hooks that can be used
to set the gpio states, register child devices, etc.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

1 files changed, 29 insertions, 6 deletions

diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 130e37e4ebdd..fac846b0d070 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -706,16 +706,39 @@ static struct tmio_nand_data tosa_tc6393xb_nand_config = {
         .badblock_pattern = &tosa_tc6393xb_nand_bbt,
 };
 
-static struct tc6393xb_platform_data tosa_tc6393xb_setup = {
+static int tosa_tc6393xb_setup(struct platform_device *dev)
+{
+        int rc;
+
+        rc = gpio_request(TOSA_GPIO_CARD_VCC_ON, "CARD_VCC_ON");
+        if (rc)
+                goto err_req;
+
+        rc = gpio_direction_output(TOSA_GPIO_CARD_VCC_ON, 1);
+        if (rc)
+                goto err_dir;
+
+        return rc;
+
+err_dir:
+        gpio_free(TOSA_GPIO_CARD_VCC_ON);
+err_req:
+        return rc;
+}
+
+static void tosa_tc6393xb_teardown(struct platform_device *dev)
+{
+        gpio_free(TOSA_GPIO_CARD_VCC_ON);
+}
+
+static struct tc6393xb_platform_data tosa_tc6393xb_data = {
         .scr_pll2cr     = 0x0cc1,
         .scr_gper       = 0x3300,
-        .scr_gpo_dsr    =
-                TOSA_TC6393XB_GPIO_BIT(TOSA_GPIO_CARD_VCC_ON),
-        .scr_gpo_doecr  =
-                TOSA_TC6393XB_GPIO_BIT(TOSA_GPIO_CARD_VCC_ON),
 
         .irq_base       = IRQ_BOARD_START,
         .gpio_base      = TOSA_TC6393XB_GPIO_BASE,
+        .setup          = tosa_tc6393xb_setup,
+        .teardown       = tosa_tc6393xb_teardown,
 
         .enable         = tosa_tc6393xb_enable,
         .disable        = tosa_tc6393xb_disable,
@@ -730,7 +753,7 @@ static struct platform_device tc6393xb_device = {
         .name   = "tc6393xb",
         .id     = -1,
         .dev    = {
-                .platform_data  = &tosa_tc6393xb_setup,
+                .platform_data  = &tosa_tc6393xb_data,
         },
         .num_resources  = ARRAY_SIZE(tc6393xb_resources),
         .resource       = tc6393xb_resources,