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 <[email protected]>
---
 drivers/spi/spi-mpc512x-psc.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 56cead9..3822eef 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -465,10 +465,8 @@ 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;
@@ -487,7 +485,6 @@ 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;
@@ -573,7 +570,6 @@ 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) {
@@ -582,16 +578,8 @@ 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)
-- 
1.8.1.2



--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to