spi: tegra20-sflash: Make of_device_id array const

Make of_device_id array const, because all OF functions
handle it as const.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 47869ea636e1..3548ce25c08f 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -419,7 +419,7 @@ static irqreturn_t tegra_sflash_isr(int irq, void *context_data)
         return handle_cpu_based_xfer(tsd);
 }
 
-static struct of_device_id tegra_sflash_of_match[] = {
+static const struct of_device_id tegra_sflash_of_match[] = {
         { .compatible = "nvidia,tegra20-sflash", },
         {}
 };