spi: mpc512x-psc: Remove redundant code to get bus_num from DT

For DT case, spi core will call of_alias_get_id() and set master->bus_num if it
was not set.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 5032141..46cdfd2 100644 (file)
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -466,10 +466,8 @@ static void mpc512x_spi_cs_control(struct spi_device *spi, bool onoff)
        gpio_set_value(spi->cs_gpio, onoff);
 }
 
-/* bus_num is used only for the case dev->platform_data == NULL */
 static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
-                                             u32 size, unsigned int irq,
-                                             s16 bus_num)
+                                             u32 size, unsigned int irq)
 {
        struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
        struct mpc512x_psc_spi *mps;
@@ -488,7 +486,6 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
 
        if (pdata == NULL) {
                mps->cs_control = mpc512x_spi_cs_control;
-               master->bus_num = bus_num;
        } else {
                mps->cs_control = pdata->cs_control;
                master->bus_num = pdata->bus_num;
@@ -574,7 +571,6 @@ static int mpc512x_psc_spi_of_probe(struct platform_device *op)
 {
        const u32 *regaddr_p;
        u64 regaddr64, size64;
-       s16 id = -1;
 
        regaddr_p = of_get_address(op->dev.of_node, 0, &size64, NULL);
        if (!regaddr_p) {
@@ -583,16 +579,8 @@ static int mpc512x_psc_spi_of_probe(struct platform_device *op)
        }
        regaddr64 = of_translate_address(op->dev.of_node, regaddr_p);
 
-       /* get PSC id (0..11, used by port_config) */
-       id = of_alias_get_id(op->dev.of_node, "spi");
-       if (id < 0) {
-               dev_err(&op->dev, "no alias id for %s\n",
-                       op->dev.of_node->full_name);
-               return id;
-       }
-
        return mpc512x_psc_spi_do_probe(&op->dev, (u32) regaddr64, (u32) size64,
-                               irq_of_parse_and_map(op->dev.of_node, 0), id);
+                               irq_of_parse_and_map(op->dev.of_node, 0));
 }
 
 static int mpc512x_psc_spi_of_remove(struct platform_device *op)