spi/imx: make spi_imx_data.devtype_data member point to const data

This prepares *of_device_id.data becoming const. Without this change the
following warning would occur:

	drivers/spi/spi-imx.c: In function spi_imx_probe:
	drivers/spi/spi-imx.c:814:24: warning: assignment discards const qualifier from pointer target type [enabled by default]

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index e834ff8c0188..3bd9c691b796 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -97,7 +97,7 @@ struct spi_imx_data {
         const void *tx_buf;
         unsigned int txfifo; /* number of words pushed in tx FIFO */
 
-        struct spi_imx_devtype_data *devtype_data;
+        const struct spi_imx_devtype_data *devtype_data;
         int chipselect[0];
 };