[V2] spi/pl022: Enable clock in probe

Message ID 1320335741-5309-1-git-send-email-ulf.hansson@stericsson.com
State New
Headers show

Commit Message

Ulf Hansson Nov. 3, 2011, 3:55 p.m.
Make sure we enable the clock before leaving probe.

Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
---

Changes in v2:
	-Remove runtime_idle

---
 drivers/spi/spi-pl022.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

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