ARM: pxa: Add gpio descriptor lookup tables for MMC CD/WP

This adds GPIO descriptor look-up tables for a whole bunch
of PXA boards with MMC card detect (CD) and write protect (WP)
GPIO lines, so we can move away from the hard-coded GPIO
numberspace.

In some cases the platforms were compulsively including the
<linux/gpio.h> header even if they weren't actually using
it, and in these cases I simply replaced that inclusion with
the more appropriate <linux/gpio/machine.h> which is what
board files should be including most of the time.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 15 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/csb726.c b/arch/arm/mach-pxa/csb726.c
index 271aedae7542..45d5dd560b7d 100644
--- a/arch/arm/mach-pxa/csb726.c
+++ b/arch/arm/mach-pxa/csb726.c
@@ -11,7 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/partitions.h>
@@ -134,6 +134,19 @@ static struct pxamci_platform_data csb726_mci = {
 	.gpio_power		= -1,
 };
 
+static struct gpiod_lookup_table csb726_mci_gpio_table = {
+	.dev_id = "pxa2xx-mci.0",
+	.table = {
+		/* Card detect on GPIO 100 */
+		GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_DETECT,
+			    "cd", GPIO_ACTIVE_LOW),
+		/* Write protect on GPIO 101 */
+		GPIO_LOOKUP("gpio-pxa", CSB726_GPIO_MMC_RO,
+			    "wp", GPIO_ACTIVE_LOW),
+		{ },
+	},
+};
+
 static struct pxaohci_platform_data csb726_ohci_platform_data = {
 	.port_mode	= PMM_NPS_MODE,
 	.flags		= ENABLE_PORT1 | NO_OC_PROTECTION,
@@ -264,6 +277,7 @@ static void __init csb726_init(void)
 	pxa_set_stuart_info(NULL);
 	pxa_set_i2c_info(NULL);
 	pxa27x_set_i2c_power_info(NULL);
+	gpiod_add_lookup_table(&csb726_mci_gpio_table);
 	pxa_set_mci_info(&csb726_mci);
 	pxa_set_ohci_info(&csb726_ohci_platform_data);
 	pxa_set_ac97_info(NULL);