Merge branch 'amba-modalias' of git://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git...

[firefly-linux-kernel-4.4.55.git] / drivers / spi / spi-pl022.c

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 43abaf22ec47ca43a17f1eb42ff8ee9970845371..7026af1956830d5c32693a21e039a273b6d14d62 100644 (file)
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2184,6 +2184,12 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
                goto  err_clk_prep;
        }
 
+       status = clk_enable(pl022->clk);
+       if (status) {
+               dev_err(&adev->dev, "could not enable SSP/SPI bus clock\n");
+               goto err_no_clk_en;
+       }
+
        /* Disable SSP */
        writew((readw(SSP_CR1(pl022->virtbase)) & (~SSP_CR1_MASK_SSE)),
               SSP_CR1(pl022->virtbase));
@@ -2237,6 +2243,8 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id)
 
        free_irq(adev->irq[0], pl022);
  err_no_irq:
+       clk_disable(pl022->clk);
+ err_no_clk_en:
        clk_unprepare(pl022->clk);
  err_clk_prep:
        clk_put(pl022->clk);