The member "data" of structure of_device_id is changed to const
pointer. Hence initializing this with const type data.
This will fix the compilation warning like
drivers/dma/tegra20-apb-dma.c:1217:9: warning: assignment discards 'const' 
qualifier from
pointer target type [enabled by default]

This warning came after the change
---------
commit 98d7bbb9929bcc14e11ac8a55245a4f2dc174e17
Author: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
    of: add const to struct *of_device_id.data
---------

Signed-off-by: Laxman Dewangan <ldewan...@nvidia.com>
Acked-by: Stephen Warren <swar...@wwwdotorg.org>
Acked-by: Vinod Koul <vinod.k...@linux.intel.com>

---
Resending patch to Uwe and adding ack from Stephen and Vinod.
Fix typo in description.

 drivers/dma/tegra20-apb-dma.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 24acd71..09a15ff 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -201,7 +201,7 @@ struct tegra_dma {
        struct clk                      *dma_clk;
        spinlock_t                      global_lock;
        void __iomem                    *base_addr;
-       struct tegra_dma_chip_data      *chip_data;
+       const struct tegra_dma_chip_data        *chip_data;
 
        /* Some register need to be cache before suspend */
        u32                             reg_gen;
@@ -1173,14 +1173,14 @@ static void tegra_dma_free_chan_resources(struct 
dma_chan *dc)
 }
 
 /* Tegra20 specific DMA controller information */
-static struct tegra_dma_chip_data tegra20_dma_chip_data = {
+static const struct tegra_dma_chip_data tegra20_dma_chip_data = {
        .nr_channels            = 16,
        .max_dma_count          = 1024UL * 64,
 };
 
 #if defined(CONFIG_OF)
 /* Tegra30 specific DMA controller information */
-static struct tegra_dma_chip_data tegra30_dma_chip_data = {
+static const struct tegra_dma_chip_data tegra30_dma_chip_data = {
        .nr_channels            = 32,
        .max_dma_count          = 1024UL * 64,
 };
@@ -1204,7 +1204,7 @@ static int __devinit tegra_dma_probe(struct 
platform_device *pdev)
        struct tegra_dma *tdma;
        int ret;
        int i;
-       struct tegra_dma_chip_data *cdata = NULL;
+       const struct tegra_dma_chip_data *cdata = NULL;
 
        if (pdev->dev.of_node) {
                const struct of_device_id *match;
-- 
1.7.1.1

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