diff options
Diffstat (limited to 'drivers/spi/spi-imx.c')
-rw-r--r-- | drivers/spi/spi-imx.c | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 570f220..47877d6 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -37,6 +37,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_gpio.h> +#include <linux/pinctrl/consumer.h> #include <mach/spi.h> @@ -85,7 +86,8 @@ 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; @@ -758,6 +760,7 @@ static int __devinit spi_imx_probe(struct platform_device *pdev) struct spi_master *master; struct spi_imx_data *spi_imx; struct resource *res; + struct pinctrl *pinctrl; int i, ret, num_cs; if (!np && !mxc_platform_info) { @@ -845,15 +848,28 @@ 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); + pinctrl = devm_pinctrl_get_select_default(&pdev->dev); + if (IS_ERR(pinctrl)) { + ret = PTR_ERR(pinctrl); goto out_free_irq; } - clk_enable(spi_imx->clk); - spi_imx->spi_clk = clk_get_rate(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; + } + + 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 +887,8 @@ 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 +916,8 @@ 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); |