ARM/gpio: Push OMAP2 quirk down into TWL4030 driver

The TWL4030 GPIO driver has a custom platform data .set_up()
callback to call back into the platform and do misc stuff such
as hog and export a GPIO for WLAN PWR on a specific OMAP3 board.

Avoid all the kludgery in the platform data and the boardfile
and just put the quirks right into the driver. Make it
conditional on OMAP3.

I think the exported GPIO is used by some kind of userspace
so ordinary DTS hogs will probably not work.

Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2 files changed, 1 insertions, 41 deletions

diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 4afa2f08e668..fca7869c8075 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -244,7 +244,6 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
 	case BUS_NOTIFY_ADD_DEVICE:
 		if (pdev->dev.of_node)
 			omap_device_build_from_dt(pdev);
-		omap_auxdata_legacy_init(dev);
 		fallthrough;
 	default:
 		od = to_omap_device(pdev);
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 04208cc52784..c363ad8d6a06 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -6,6 +6,7 @@
  */
 #include <linux/clk.h>
 #include <linux/davinci_emac.h>
+#include <linux/gpio/machine.h>
 #include <linux/gpio/consumer.h>
 #include <linux/gpio.h>
 #include <linux/init.h>
@@ -41,7 +42,6 @@ struct pdata_init {
 };
 
 static struct of_dev_auxdata omap_auxdata_lookup[];
-static struct twl4030_gpio_platform_data twl_gpio_auxdata;
 
 #ifdef CONFIG_MACH_NOKIA_N8X0
 static void __init omap2420_n8x0_legacy_init(void)
@@ -98,22 +98,6 @@ static struct iommu_platform_data omap3_iommu_isp_pdata = {
 };
 #endif
 
-static int omap3_sbc_t3730_twl_callback(struct device *dev,
-					   unsigned gpio,
-					   unsigned ngpio)
-{
-	int res;
-
-	res = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
-			       "wlan pwr");
-	if (res)
-		return res;
-
-	gpiod_export(gpio_to_desc(gpio), 0);
-
-	return 0;
-}
-
 static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
 {
 	int err = gpio_request_one(gpio, GPIOF_OUT_INIT_LOW, hub_name);
@@ -131,11 +115,6 @@ static void __init omap3_sbc_t3x_usb_hub_init(int gpio, char *hub_name)
 	msleep(1);
 }
 
-static void __init omap3_sbc_t3730_twl_init(void)
-{
-	twl_gpio_auxdata.setup = omap3_sbc_t3730_twl_callback;
-}
-
 static void __init omap3_sbc_t3730_legacy_init(void)
 {
 	omap3_sbc_t3x_usb_hub_init(167, "sb-t35 usb hub");
@@ -393,21 +372,6 @@ static struct ti_prm_platform_data ti_prm_pdata = {
 	.clkdm_lookup = clkdm_lookup,
 };
 
-/*
- * GPIOs for TWL are initialized by the I2C bus and need custom
- * handing until DSS has device tree bindings.
- */
-void omap_auxdata_legacy_init(struct device *dev)
-{
-	if (dev->platform_data)
-		return;
-
-	if (strcmp("twl4030-gpio", dev_name(dev)))
-		return;
-
-	dev->platform_data = &twl_gpio_auxdata;
-}
-
 #if defined(CONFIG_ARCH_OMAP3) && IS_ENABLED(CONFIG_SND_SOC_OMAP_MCBSP)
 static struct omap_mcbsp_platform_data mcbsp_pdata;
 static void __init omap3_mcbsp_init(void)
@@ -428,9 +392,6 @@ static struct pdata_init auxdata_quirks[] __initdata = {
 	{ "nokia,n810", omap2420_n8x0_legacy_init, },
 	{ "nokia,n810-wimax", omap2420_n8x0_legacy_init, },
 #endif
-#ifdef CONFIG_ARCH_OMAP3
-	{ "compulab,omap3-sbc-t3730", omap3_sbc_t3730_twl_init, },
-#endif
 	{ /* sentinel */ },
 };