pwm: i.MX: eliminate build warning

compiling the i.MX pwm driver produces the following warning:
|drivers/pwm/pwm-imx.c: In function 'imx_pwm_probe':
|drivers/pwm/pwm-imx.c:281:7: warning: assignment discards qualifiers from pointer target type

Apply a 'const' attribute to the affected variable declaration.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 8a5d3ae2946a..fe3fbdbc86aa 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -235,7 +235,7 @@ static int __devinit imx_pwm_probe(struct platform_device *pdev)
 {
         const struct of_device_id *of_id =
                         of_match_device(imx_pwm_dt_ids, &pdev->dev);
-        struct imx_pwm_data *data;
+        const struct imx_pwm_data *data;
         struct imx_chip *imx;
         struct resource *r;
         int ret = 0;