diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2013-08-02 16:18:09 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-08-27 14:25:03 +0530 |
| commit | 2833c47e0ecc74b300716e56810143125ad7a3f1 (patch) | |
| tree | adda4f1edcfe1f7b3eff355c9577c9bcad76931d /drivers | |
| parent | cc6b0f023875a67f0c2ca7211fe6859d60b14852 (diff) | |
| download | linux-2833c47e0ecc74b300716e56810143125ad7a3f1.tar.bz2 | |
DMA: shdma: make a pointer const
Platform data shouldn't be changed at run-time, so, pointers to it should
be const.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/sh/shdma.c | 10 | ||||
| -rw-r--r-- | drivers/dma/sh/shdma.h | 2 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/dma/sh/shdma.c b/drivers/dma/sh/shdma.c index e507bb285fd0..3b4bee933dd7 100644 --- a/drivers/dma/sh/shdma.c +++ b/drivers/dma/sh/shdma.c @@ -177,7 +177,7 @@ static bool dmae_is_busy(struct sh_dmae_chan *sh_chan) static unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan, u32 chcr) { struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - struct sh_dmae_pdata *pdata = shdev->pdata; + const struct sh_dmae_pdata *pdata = shdev->pdata; int cnt = ((chcr & pdata->ts_low_mask) >> pdata->ts_low_shift) | ((chcr & pdata->ts_high_mask) >> pdata->ts_high_shift); @@ -190,7 +190,7 @@ static unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan, u32 chcr) static u32 log2size_to_chcr(struct sh_dmae_chan *sh_chan, int l2size) { struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - struct sh_dmae_pdata *pdata = shdev->pdata; + const struct sh_dmae_pdata *pdata = shdev->pdata; int i; for (i = 0; i < pdata->ts_shift_num; i++) @@ -250,7 +250,7 @@ static int dmae_set_chcr(struct sh_dmae_chan *sh_chan, u32 val) static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val) { struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - struct sh_dmae_pdata *pdata = shdev->pdata; + const struct sh_dmae_pdata *pdata = shdev->pdata; const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->shdma_chan.id]; void __iomem *addr = shdev->dmars; unsigned int shift = chan_pdata->dmars_bit; @@ -319,7 +319,7 @@ static const struct sh_dmae_slave_config *dmae_find_slave( struct sh_dmae_chan *sh_chan, int match) { struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - struct sh_dmae_pdata *pdata = shdev->pdata; + const struct sh_dmae_pdata *pdata = shdev->pdata; const struct sh_dmae_slave_config *cfg; int i; @@ -665,7 +665,7 @@ static const struct shdma_ops sh_dmae_shdma_ops = { static int sh_dmae_probe(struct platform_device *pdev) { - struct sh_dmae_pdata *pdata = pdev->dev.platform_data; + const struct sh_dmae_pdata *pdata = pdev->dev.platform_data; unsigned long irqflags = IRQF_DISABLED, chan_flag[SH_DMAE_MAX_CHANNELS] = {}; int errirq, chan_irq[SH_DMAE_MAX_CHANNELS]; diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h index 06aae6ebc82b..3d9dca177860 100644 --- a/drivers/dma/sh/shdma.h +++ b/drivers/dma/sh/shdma.h @@ -36,7 +36,7 @@ struct sh_dmae_chan { struct sh_dmae_device { struct shdma_dev shdma_dev; struct sh_dmae_chan *chan[SH_DMAE_MAX_CHANNELS]; - struct sh_dmae_pdata *pdata; + const struct sh_dmae_pdata *pdata; struct list_head node; void __iomem *chan_reg; void __iomem *dmars; |