[PATCH 1/3] iio: adc: rcar-gyroadc: Cast pointer to uintptr_t to fix warning on 64-bit

[Geert Uytterhoeven <geert+renesas@xxxxxxxxx>]

On 64-bit:

    drivers/iio/adc/rcar-gyroadc.c: In function 'rcar_gyroadc_parse_subdevs':
    drivers/iio/adc/rcar-gyroadc.c:352:15: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
       childmode = (unsigned int)of_id->data;
		   ^

Cast the pointer to uintptr_t instead of unsigned int to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Currently this driver can be enabled on arm32 only, but the hardware
block can be found in some R-Car Gen3 SoCs, which are arm64.
---
 drivers/iio/adc/rcar-gyroadc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c
index 2cb5397ceeea9ff4..0098c66a19572400 100644
--- a/drivers/iio/adc/rcar-gyroadc.c
+++ b/drivers/iio/adc/rcar-gyroadc.c
@@ -348,7 +348,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 			continue;
 		}
 
-		childmode = (unsigned int)of_id->data;
+		childmode = (uintptr_t)of_id->data;
 		switch (childmode) {
 		case RCAR_GYROADC_MODE_SELECT_1_MB88101A:
 			sample_width = 12;
-- 
2.7.4