spi i.MX: do not depend on grouped clocks

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

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 570f22053be89fb56d99b464ecc36a9443e2cc8d..4b6688630b9c3297ba4b861d7aed53993bcc6769 100644 (file)
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -85,7 +85,8 @@ struct spi_imx_data {
        struct completion xfer_done;
        void __iomem *base;
        int irq;
-       struct clk *clk;
+       struct clk *clk_per;
+       struct clk *clk_ipg;
        unsigned long spi_clk;
 
        unsigned int count;
@@ -845,15 +846,22 @@ static int __devinit spi_imx_probe(struct platform_device *pdev)
                goto out_iounmap;
        }
 
-       spi_imx->clk = clk_get(&pdev->dev, NULL);
-       if (IS_ERR(spi_imx->clk)) {
-               dev_err(&pdev->dev, "unable to get clock\n");
-               ret = PTR_ERR(spi_imx->clk);
+       spi_imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+       if (IS_ERR(spi_imx->clk_ipg)) {
+               ret = PTR_ERR(spi_imx->clk_ipg);
                goto out_free_irq;
        }
 
-       clk_enable(spi_imx->clk);
-       spi_imx->spi_clk = clk_get_rate(spi_imx->clk);
+       spi_imx->clk_per = devm_clk_get(&pdev->dev, "per");
+       if (IS_ERR(spi_imx->clk_per)) {
+               ret = PTR_ERR(spi_imx->clk_per);
+               goto out_free_irq;
+       }
+
+       clk_prepare_enable(spi_imx->clk_per);
+       clk_prepare_enable(spi_imx->clk_ipg);
+
+       spi_imx->spi_clk = clk_get_rate(spi_imx->clk_per);
 
        spi_imx->devtype_data->reset(spi_imx);
 
@@ -871,8 +879,8 @@ static int __devinit spi_imx_probe(struct platform_device *pdev)
        return ret;
 
 out_clk_put:
-       clk_disable(spi_imx->clk);
-       clk_put(spi_imx->clk);
+       clk_disable_unprepare(spi_imx->clk_per);
+       clk_disable_unprepare(spi_imx->clk_ipg);
 out_free_irq:
        free_irq(spi_imx->irq, spi_imx);
 out_iounmap:
@@ -900,8 +908,8 @@ static int __devexit spi_imx_remove(struct platform_device *pdev)
        spi_bitbang_stop(&spi_imx->bitbang);
 
        writel(0, spi_imx->base + MXC_CSPICTRL);
-       clk_disable(spi_imx->clk);
-       clk_put(spi_imx->clk);
+       clk_disable_unprepare(spi_imx->clk_per);
+       clk_disable_unprepare(spi_imx->clk_ipg);
        free_irq(spi_imx->irq, spi_imx);
        iounmap(spi_imx->base);