ARM: 7149/1: spi/pl022: Enable clock in probe

Make sure we enable the clock before leaving probe.

Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index f103e47..5559b22 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);