Commit 2833c47e authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Vinod Koul
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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: default avatarGuennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent cc6b0f02

drivers/dma/sh/shdma.c

+5 −5
Original line number Diff line number Diff line
@@ -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];

drivers/dma/sh/shdma.h

+1 −1
Original line number Diff line number Diff line
@@ -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;