[PATCH 3/6] of/spi: add support to parse the SPI flash's partitions

[Mingkai Hu]

Signed-off-by: Mingkai Hu <Mingkai.hu at freescale.com>
---
 drivers/of/of_spi.c       |   11 +++++++++++
 drivers/spi/spi_mpc8xxx.c |    1 +
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/of/of_spi.c b/drivers/of/of_spi.c
index 5fed7e3..284ca0e 100644
--- a/drivers/of/of_spi.c
+++ b/drivers/of/of_spi.c
@@ -10,6 +10,8 @@
 #include <linux/device.h>
 #include <linux/spi/spi.h>
 #include <linux/of_spi.h>
+#include <linux/spi/flash.h>
+#include <linux/mtd/partitions.h>
 
 /**
  * of_register_spi_devices - Register child devices onto the SPI bus
@@ -26,6 +28,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
 	const __be32 *prop;
 	int rc;
 	int len;
+	struct flash_platform_data *pdata;
 
 	for_each_child_of_node(np, nc) {
 		/* Alloc an spi_device */
@@ -81,6 +84,14 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
 		of_node_get(nc);
 		spi->dev.of_node = nc;
 
+		/* Parse the mtd partitions */
+		pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+		if (!pdata)
+			return;
+		pdata->nr_parts = of_mtd_parse_partitions(&master->dev,
+				nc, &pdata->parts);
+		spi->dev.platform_data = pdata;
+
 		/* Register the new device */
 		request_module(spi->modalias);
 		rc = spi_add_device(spi);
diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c
index efed70e..0fadaeb 100644
--- a/drivers/spi/spi_mpc8xxx.c
+++ b/drivers/spi/spi_mpc8xxx.c
@@ -137,6 +137,7 @@ int mpc8xxx_spi_transfer(struct spi_device *spi,
 
 void mpc8xxx_spi_cleanup(struct spi_device *spi)
 {
+	kfree(spi->dev.platform_data);
 	kfree(spi->controller_state);
 }
 
-- 
1.6.4