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>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index f103e470cb63..5559b2299198 100644
--- 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);