mtd: fsmc_nand: Add clk_{un}prepare() support

clk_{un}prepare is mandatory for platforms using common clock framework. Since
this driver is used by SPEAr platform, which supports common clock framework,
add clk_{un}prepare() support for it.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 1b8330e..9d7f417 100644 (file)
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -994,9 +994,9 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
                return PTR_ERR(host->clk);
        }
 
-       ret = clk_enable(host->clk);
+       ret = clk_prepare_enable(host->clk);
        if (ret)
-               goto err_clk_enable;
+               goto err_clk_prepare_enable;
 
        /*
         * This device ID is actually a common AMBA ID as used on the
@@ -1176,8 +1176,8 @@ err_req_write_chnl:
        if (host->mode == USE_DMA_ACCESS)
                dma_release_channel(host->read_dma_chan);
 err_req_read_chnl:
-       clk_disable(host->clk);
-err_clk_enable:
+       clk_disable_unprepare(host->clk);
+err_clk_prepare_enable:
        clk_put(host->clk);
        return ret;
 }
@@ -1198,7 +1198,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
                        dma_release_channel(host->write_dma_chan);
                        dma_release_channel(host->read_dma_chan);
                }
-               clk_disable(host->clk);
+               clk_disable_unprepare(host->clk);
                clk_put(host->clk);
        }
 
@@ -1210,7 +1210,7 @@ static int fsmc_nand_suspend(struct device *dev)
 {
        struct fsmc_nand_data *host = dev_get_drvdata(dev);
        if (host)
-               clk_disable(host->clk);
+               clk_disable_unprepare(host->clk);
        return 0;
 }
 
@@ -1218,7 +1218,7 @@ static int fsmc_nand_resume(struct device *dev)
 {
        struct fsmc_nand_data *host = dev_get_drvdata(dev);
        if (host) {
-               clk_enable(host->clk);
+               clk_prepare_enable(host->clk);
                fsmc_nand_setup(host->regs_va, host->bank,
                                host->nand.options & NAND_BUSWIDTH_16,
                                host->dev_timings);