mtd: gpmi-lib: convert to clk_prepare/clk_unprepare

The patch converts gpmi nand driver to clk_prepare/clk_unprepare by
using helper functions clk_prepare_enable/clk_disable_unprepare.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Huang Shijie <b32955@freescale.com>
Cc: Artem Bityutskiy <artem.bityutskiy@intel.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index de4db76..2a56fc6 100644 (file)
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -126,7 +126,7 @@ int gpmi_init(struct gpmi_nand_data *this)
        struct resources *r = &this->resources;
        int ret;
 
-       ret = clk_enable(r->clock);
+       ret = clk_prepare_enable(r->clock);
        if (ret)
                goto err_out;
        ret = gpmi_reset_block(r->gpmi_regs, false);
@@ -146,7 +146,7 @@ int gpmi_init(struct gpmi_nand_data *this)
        /* Select BCH ECC. */
        writel(BM_GPMI_CTRL1_BCH_MODE, r->gpmi_regs + HW_GPMI_CTRL1_SET);
 
-       clk_disable(r->clock);
+       clk_disable_unprepare(r->clock);
        return 0;
 err_out:
        return ret;
@@ -202,7 +202,7 @@ int bch_set_geometry(struct gpmi_nand_data *this)
        ecc_strength  = bch_geo->ecc_strength >> 1;
        page_size     = bch_geo->page_size;
 
-       ret = clk_enable(r->clock);
+       ret = clk_prepare_enable(r->clock);
        if (ret)
                goto err_out;
 
@@ -229,7 +229,7 @@ int bch_set_geometry(struct gpmi_nand_data *this)
        writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
                                r->bch_regs + HW_BCH_CTRL_SET);
 
-       clk_disable(r->clock);
+       clk_disable_unprepare(r->clock);
        return 0;
 err_out:
        return ret;
@@ -704,7 +704,7 @@ void gpmi_begin(struct gpmi_nand_data *this)
        int ret;
 
        /* Enable the clock. */
-       ret = clk_enable(r->clock);
+       ret = clk_prepare_enable(r->clock);
        if (ret) {
                pr_err("We failed in enable the clk\n");
                goto err_out;
@@ -773,7 +773,7 @@ err_out:
 void gpmi_end(struct gpmi_nand_data *this)
 {
        struct resources *r = &this->resources;
-       clk_disable(r->clock);
+       clk_disable_unprepare(r->clock);
 }
 
 /* Clears a BCH interrupt. */