cns3xxx: add PPS support for laguna

Many Laguna products have on-board GPS with Pulse-per-second (PPS)
support.  This patch adds kernel support (statically) and adds
the platform data in laguna board support.
 
Signed-off-by: Tim Harvey <tharvey@gateworks.com>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34115 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 20 insertions, 0 deletions

diff --git a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
index 854318355..8b611c558 100644
--- a/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
+++ b/target/linux/cns3xxx/files/arch/arm/mach-cns3xxx/laguna.c
@@ -36,6 +36,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
 #include <linux/if_ether.h>
+#include <linux/pps-gpio.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -581,6 +582,22 @@ static struct platform_device laguna_watchdog = {
 };
 
 /*
+ * GPS PPS
+ */
+static struct pps_gpio_platform_data laguna_pps_data = {
+	.gpio_pin = 0,
+	.gpio_label = "GPS_PPS",
+	.assert_falling_edge = 0,
+	.capture_clear = 0,
+};
+
+static struct platform_device laguna_pps_device = {
+	.name = "pps-gpio",
+	.id = -1,
+	.dev.platform_data = &laguna_pps_data,
+};
+
+/*
  * GPIO
  */
 
@@ -869,6 +886,9 @@ static int __init laguna_model_setup(void)
 		    (laguna_info.config_bitmap & SPI1_LOAD))
 			platform_device_register(&laguna_spi_controller);
 
+		if (laguna_info.config2_bitmap & GPS_LOAD)
+			platform_device_register(&laguna_pps_device);
+
 		/*
 		 * Do any model specific setup not known by the bitmap by matching
 		 *  the first 6 characters of the model name