ARM: OMAP2+: gpmc: Converts GPMC driver to pm_runtime capable

Support for pm_runtime add to GPMC driver.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 21b963604430..bac18b3ebbfb 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -30,6 +30,7 @@
 #include <linux/of_mtd.h>
 #include <linux/of_device.h>
 #include <linux/mtd/nand.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/platform_data/mtd-nand-omap2.h>
 
@@ -1608,7 +1609,8 @@ static int gpmc_probe(struct platform_device *pdev)
                 return PTR_ERR(gpmc_l3_clk);
         }
 
-        clk_prepare_enable(gpmc_l3_clk);
+        pm_runtime_enable(&pdev->dev);
+        pm_runtime_get_sync(&pdev->dev);
 
         gpmc_dev = &pdev->dev;
 
@@ -1648,7 +1650,7 @@ static int gpmc_probe(struct platform_device *pdev)
 
         rc = gpmc_probe_dt(pdev);
         if (rc < 0) {
-                clk_disable_unprepare(gpmc_l3_clk);
+                pm_runtime_put_sync(&pdev->dev);
                 clk_put(gpmc_l3_clk);
                 dev_err(gpmc_dev, "failed to probe DT parameters\n");
                 return rc;
@@ -1661,6 +1663,8 @@ static int gpmc_remove(struct platform_device *pdev)
 {
         gpmc_free_irq();
         gpmc_mem_exit();
+        pm_runtime_put_sync(&pdev->dev);
+        pm_runtime_disable(&pdev->dev);
         gpmc_dev = NULL;
         return 0;
 }