mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-22 00:40:03 +00:00
Code Issues Releases Wiki Activity

dmaengine: shdmac: Change platform check to CONFIG_ARCH_RENESAS

Browse source 
Since commit 9b5ba0df4e ("ARM: shmobile: Introduce ARCH_RENESAS")
is CONFIG_ARCH_RENESAS a more appropriate platform check than the legacy
CONFIG_ARCH_SHMOBILE, hence use the former.

Renesas SuperH SH-Mobile SoCs are still covered by the CONFIG_CPU_SH4
check, just like before support for Renesas ARM SoCs was added.

Instead of blindly changing all the #ifdefs, switch the main code block
in sh_dmae_probe() to IS_ENABLED(), as this allows to remove all the
remaining #ifdefs.

This will allow to drop ARCH_SHMOBILE on ARM in the near future.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Geert Uytterhoeven 2018-04-20 15:28:28 +02:00 committed by Vinod Koul
parent 60cc43fc88
commit 0ef9944d2e
1 changed files with 23 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

54
drivers/dma/sh/shdmac.c
View file

@ -443,7 +443,6 @@ static bool sh_dmae_reset(struct sh_dmae_device *shdev)
return ret;
}
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
static irqreturn_t sh_dmae_err(int irq, void *data)
{
struct sh_dmae_device *shdev = data;
@ -454,7 +453,6 @@ static irqreturn_t sh_dmae_err(int irq, void *data)
sh_dmae_reset(shdev);
return IRQ_HANDLED;
}
#endif
static bool sh_dmae_desc_completed(struct shdma_chan *schan,
struct shdma_desc *sdesc)
@ -686,11 +684,8 @@ static int sh_dmae_probe(struct platform_device *pdev)
const struct sh_dmae_pdata *pdata;
unsigned long chan_flag[SH_DMAE_MAX_CHANNELS] = {};
int chan_irq[SH_DMAE_MAX_CHANNELS];
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
unsigned long irqflags = 0;
int errirq;
#endif
int err, i, irq_cnt = 0, irqres = 0, irq_cap = 0;
int err, errirq, i, irq_cnt = 0, irqres = 0, irq_cap = 0;
struct sh_dmae_device *shdev;
struct dma_device *dma_dev;
struct resource *chan, *dmars, *errirq_res, *chanirq_res;
@ -792,33 +787,32 @@ static int sh_dmae_probe(struct platform_device *pdev)
if (err)
goto rst_err;
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
chanirq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
if (IS_ENABLED(CONFIG_CPU_SH4) || IS_ENABLED(CONFIG_ARCH_RENESAS)) {
chanirq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
if (!chanirq_res)
if (!chanirq_res)
chanirq_res = errirq_res;
else
irqres++;
if (chanirq_res == errirq_res ||
(errirq_res->flags & IORESOURCE_BITS) == IORESOURCE_IRQ_SHAREABLE)
irqflags = IRQF_SHARED;
errirq = errirq_res->start;
err = devm_request_irq(&pdev->dev, errirq, sh_dmae_err,
irqflags, "DMAC Address Error", shdev);
if (err) {
dev_err(&pdev->dev,
"DMA failed requesting irq #%d, error %d\n",
errirq, err);
goto eirq_err;
}
} else {
chanirq_res = errirq_res;
else
irqres++;
if (chanirq_res == errirq_res ||
(errirq_res->flags & IORESOURCE_BITS) == IORESOURCE_IRQ_SHAREABLE)
irqflags = IRQF_SHARED;
errirq = errirq_res->start;
err = devm_request_irq(&pdev->dev, errirq, sh_dmae_err, irqflags,
"DMAC Address Error", shdev);
if (err) {
dev_err(&pdev->dev,
"DMA failed requesting irq #%d, error %d\n",
errirq, err);
goto eirq_err;
}
#else
chanirq_res = errirq_res;
#endif /* CONFIG_CPU_SH4 || CONFIG_ARCH_SHMOBILE */
if (chanirq_res->start == chanirq_res->end &&
!platform_get_resource(pdev, IORESOURCE_IRQ, 1)) {
/* Special case - all multiplexed */
@ -884,9 +878,7 @@ static int sh_dmae_probe(struct platform_device *pdev)
chan_probe_err:
sh_dmae_chan_remove(shdev);
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
eirq_err:
#endif
rst_err:
spin_lock_irq(&sh_dmae_lock);
list_del_rcu(&shdev->node);