spi: atmel: prepare clk before calling enable

Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index ea1ec009f44d..4c6c455685c2 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1579,7 +1579,9 @@ static int atmel_spi_probe(struct platform_device *pdev)
                 goto out_unmap_regs;
 
         /* Initialize the hardware */
-        clk_enable(clk);
+        ret = clk_prepare_enable(clk);
+        if (ret)
+                goto out_unmap_regs;
         spi_writel(as, CR, SPI_BIT(SWRST));
         spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
         if (as->caps.has_wdrbt) {
@@ -1609,7 +1611,7 @@ out_free_dma:
 
         spi_writel(as, CR, SPI_BIT(SWRST));
         spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
-        clk_disable(clk);
+        clk_disable_unprepare(clk);
         free_irq(irq, master);
 out_unmap_regs:
         iounmap(as->regs);
@@ -1661,7 +1663,7 @@ static int atmel_spi_remove(struct platform_device *pdev)
         dma_free_coherent(&pdev->dev, BUFFER_SIZE, as->buffer,
                         as->buffer_dma);
 
-        clk_disable(as->clk);
+        clk_disable_unprepare(as->clk);
         clk_put(as->clk);
         free_irq(as->irq, master);
         iounmap(as->regs);
@@ -1678,7 +1680,7 @@ static int atmel_spi_suspend(struct platform_device *pdev, pm_message_t mesg)
         struct spi_master       *master = platform_get_drvdata(pdev);
         struct atmel_spi        *as = spi_master_get_devdata(master);
 
-        clk_disable(as->clk);
+        clk_disable_unprepare(as->clk);
         return 0;
 }
 
@@ -1687,7 +1689,7 @@ static int atmel_spi_resume(struct platform_device *pdev)
         struct spi_master       *master = platform_get_drvdata(pdev);
         struct atmel_spi        *as = spi_master_get_devdata(master);
 
-        clk_enable(as->clk);
+        return clk_prepare_enable(as->clk);
         return 0;
 }