[PATCH 1/2] spi: spi-atmel: Use devm_*() functions

[PATCH 1/2] spi: spi-atmel: Use devm_*() functions

[Jingoo Han]

Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
---
 drivers/spi/spi-atmel.c |   18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 273db0b..57fa738 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1510,7 +1510,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	clk = clk_get(&pdev->dev, "spi_clk");
+	clk = devm_clk_get(&pdev->dev, "spi_clk");
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
@@ -1570,14 +1570,14 @@ static int atmel_spi_probe(struct platform_device *pdev)
 		dev_info(&pdev->dev, "Atmel SPI Controller using PIO only\n");
 
 	if (as->use_pdc) {
-		ret = request_irq(irq, atmel_spi_pdc_interrupt, 0,
-					dev_name(&pdev->dev), master);
+		ret = devm_request_irq(&pdev->dev, irq, atmel_spi_pdc_interrupt,
+					0, dev_name(&pdev->dev), master);
 	} else {
 		tasklet_init(&as->tasklet, atmel_spi_tasklet_func,
 					(unsigned long)master);
 
-		ret = request_irq(irq, atmel_spi_pio_interrupt, 0,
-					dev_name(&pdev->dev), master);
+		ret = devm_request_irq(&pdev->dev, irq, atmel_spi_pio_interrupt,
+					0, dev_name(&pdev->dev), master);
 	}
 	if (ret)
 		goto out_unmap_regs;
@@ -1603,7 +1603,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
 	dev_info(&pdev->dev, "Atmel SPI Controller at 0x%08lx (irq %d)\n",
 			(unsigned long)regs->start, irq);
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret)
 		goto out_free_dma;
 
@@ -1617,7 +1617,6 @@ out_free_dma:
 	spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
 	clk_disable_unprepare(clk);
 out_free_irq:
-	free_irq(irq, master);
 out_unmap_regs:
 out_free_buffer:
 	if (!as->use_pdc)
@@ -1625,7 +1624,6 @@ out_free_buffer:
 	dma_free_coherent(&pdev->dev, BUFFER_SIZE, as->buffer,
 			as->buffer_dma);
 out_free:
-	clk_put(clk);
 	spi_master_put(master);
 	return ret;
 }
@@ -1668,10 +1666,6 @@ static int atmel_spi_remove(struct platform_device *pdev)
 			as->buffer_dma);
 
 	clk_disable_unprepare(as->clk);
-	clk_put(as->clk);
-	free_irq(as->irq, master);
-
-	spi_unregister_master(master);
 
 	return 0;
 }
-- 
1.7.10.4


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[PATCH 2/2] spi: coldfire-qspi: Use devm_*() functions

[Jingoo Han]

Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
---
 drivers/spi/spi-coldfire-qspi.c |   47 ++++++++++++---------------------------
 1 file changed, 14 insertions(+), 33 deletions(-)

diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index cc5b75d..9ee81a4 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -403,38 +403,31 @@ static int mcfqspi_probe(struct platform_device *pdev)
 		goto fail0;
 	}
 
-	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
-		dev_dbg(&pdev->dev, "request_mem_region failed\n");
-		status = -EBUSY;
+	mcfqspi->iobase = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(mcfqspi->iobase)) {
+		status = PTR_ERR(mcfqspi->iobase);
 		goto fail0;
 	}
 
-	mcfqspi->iobase = ioremap(res->start, resource_size(res));
-	if (!mcfqspi->iobase) {
-		dev_dbg(&pdev->dev, "ioremap failed\n");
-		status = -ENOMEM;
-		goto fail1;
-	}
-
 	mcfqspi->irq = platform_get_irq(pdev, 0);
 	if (mcfqspi->irq < 0) {
 		dev_dbg(&pdev->dev, "platform_get_irq failed\n");
 		status = -ENXIO;
-		goto fail2;
+		goto fail0;
 	}
 
-	status = request_irq(mcfqspi->irq, mcfqspi_irq_handler, 0,
-			     pdev->name, mcfqspi);
+	status = devm_request_irq(&pdev->dev, mcfqspi->irq, mcfqspi_irq_handler,
+				0, pdev->name, mcfqspi);
 	if (status) {
 		dev_dbg(&pdev->dev, "request_irq failed\n");
-		goto fail2;
+		goto fail0;
 	}
 
-	mcfqspi->clk = clk_get(&pdev->dev, "qspi_clk");
+	mcfqspi->clk = devm_clk_get(&pdev->dev, "qspi_clk");
 	if (IS_ERR(mcfqspi->clk)) {
 		dev_dbg(&pdev->dev, "clk_get failed\n");
 		status = PTR_ERR(mcfqspi->clk);
-		goto fail3;
+		goto fail0;
 	}
 	clk_enable(mcfqspi->clk);
 
@@ -445,7 +438,7 @@ static int mcfqspi_probe(struct platform_device *pdev)
 	status = mcfqspi_cs_setup(mcfqspi);
 	if (status) {
 		dev_dbg(&pdev->dev, "error initializing cs_control\n");
-		goto fail4;
+		goto fail1;
 	}
 
 	init_waitqueue_head(&mcfqspi->waitq);
@@ -459,10 +452,10 @@ static int mcfqspi_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, master);
 
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&pdev->dev, master);
 	if (status) {
 		dev_dbg(&pdev->dev, "spi_register_master failed\n");
-		goto fail5;
+		goto fail2;
 	}
 	pm_runtime_enable(mcfqspi->dev);
 
@@ -470,17 +463,10 @@ static int mcfqspi_probe(struct platform_device *pdev)
 
 	return 0;
 
-fail5:
-	mcfqspi_cs_teardown(mcfqspi);
-fail4:
-	clk_disable(mcfqspi->clk);
-	clk_put(mcfqspi->clk);
-fail3:
-	free_irq(mcfqspi->irq, mcfqspi);
 fail2:
-	iounmap(mcfqspi->iobase);
+	mcfqspi_cs_teardown(mcfqspi);
 fail1:
-	release_mem_region(res->start, resource_size(res));
+	clk_disable(mcfqspi->clk);
 fail0:
 	spi_master_put(master);
 
@@ -501,11 +487,6 @@ static int mcfqspi_remove(struct platform_device *pdev)
 
 	mcfqspi_cs_teardown(mcfqspi);
 	clk_disable(mcfqspi->clk);
-	clk_put(mcfqspi->clk);
-	free_irq(mcfqspi->irq, mcfqspi);
-	iounmap(mcfqspi->iobase);
-	release_mem_region(res->start, resource_size(res));
-	spi_unregister_master(master);
 
 	return 0;
 }
-- 
1.7.10.4


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Re: [PATCH 2/2] spi: coldfire-qspi: Use devm_*() functions

[Mark Brown]

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On Wed, Dec 04, 2013 at 02:10:10PM +0900, Jingoo Han wrote:
> Use devm_*() functions to make cleanup paths simpler.

Applied, thanks.

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Re: [PATCH 1/2] spi: spi-atmel: Use devm_*() functions

[Nicolas Ferre]

On 04/12/2013 06:07, Jingoo Han :
> Use devm_*() functions to make cleanup paths simpler.
>
> Signed-off-by: Jingoo Han <jg1.han-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> ---
>   drivers/spi/spi-atmel.c |   18 ++++++------------
>   1 file changed, 6 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
> index 273db0b..57fa738 100644
> --- a/drivers/spi/spi-atmel.c
> +++ b/drivers/spi/spi-atmel.c
> @@ -1510,7 +1510,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
>   	if (irq < 0)
>   		return irq;
>
> -	clk = clk_get(&pdev->dev, "spi_clk");
> +	clk = devm_clk_get(&pdev->dev, "spi_clk");
>   	if (IS_ERR(clk))
>   		return PTR_ERR(clk);
>
> @@ -1570,14 +1570,14 @@ static int atmel_spi_probe(struct platform_device *pdev)
>   		dev_info(&pdev->dev, "Atmel SPI Controller using PIO only\n");
>
>   	if (as->use_pdc) {
> -		ret = request_irq(irq, atmel_spi_pdc_interrupt, 0,
> -					dev_name(&pdev->dev), master);
> +		ret = devm_request_irq(&pdev->dev, irq, atmel_spi_pdc_interrupt,
> +					0, dev_name(&pdev->dev), master);
>   	} else {
>   		tasklet_init(&as->tasklet, atmel_spi_tasklet_func,
>   					(unsigned long)master);
>
> -		ret = request_irq(irq, atmel_spi_pio_interrupt, 0,
> -					dev_name(&pdev->dev), master);
> +		ret = devm_request_irq(&pdev->dev, irq, atmel_spi_pio_interrupt,
> +					0, dev_name(&pdev->dev), master);
>   	}
>   	if (ret)
>   		goto out_unmap_regs;
> @@ -1603,7 +1603,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
>   	dev_info(&pdev->dev, "Atmel SPI Controller at 0x%08lx (irq %d)\n",
>   			(unsigned long)regs->start, irq);
>
> -	ret = spi_register_master(master);
> +	ret = devm_spi_register_master(&pdev->dev, master);
>   	if (ret)
>   		goto out_free_dma;
>
> @@ -1617,7 +1617,6 @@ out_free_dma:
>   	spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
>   	clk_disable_unprepare(clk);
>   out_free_irq:
> -	free_irq(irq, master);
>   out_unmap_regs:
>   out_free_buffer:

What about taking advantage of this cleanup patch to remove the 3 above 
unneeded tags?

Otherwise, you can add my:
Acked-by: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>


>   	if (!as->use_pdc)
> @@ -1625,7 +1624,6 @@ out_free_buffer:
>   	dma_free_coherent(&pdev->dev, BUFFER_SIZE, as->buffer,
>   			as->buffer_dma);
>   out_free:
> -	clk_put(clk);
>   	spi_master_put(master);
>   	return ret;
>   }
> @@ -1668,10 +1666,6 @@ static int atmel_spi_remove(struct platform_device *pdev)
>   			as->buffer_dma);
>
>   	clk_disable_unprepare(as->clk);
> -	clk_put(as->clk);
> -	free_irq(as->irq, master);
> -
> -	spi_unregister_master(master);
>
>   	return 0;
>   }
>


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Re: [PATCH 1/2] spi: spi-atmel: Use devm_*() functions

[Mark Brown]

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On Wed, Dec 04, 2013 at 10:47:36AM +0100, Nicolas Ferre wrote:
> On 04/12/2013 06:07, Jingoo Han :

> >  out_free_irq:
> >-	free_irq(irq, master);
> >  out_unmap_regs:
> >  out_free_buffer:

> What about taking advantage of this cleanup patch to remove the 3
> above unneeded tags?

> Otherwise, you can add my:
> Acked-by: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>

That's a good idea but it means going and changing all the gotos as well
so it probably warrants a separate patch.  I applied this one as-is.

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Re: [PATCH 1/2] spi: spi-atmel: Use devm_*() functions

[Nicolas Ferre]

On 04/12/2013 12:59, Mark Brown :
> On Wed, Dec 04, 2013 at 10:47:36AM +0100, Nicolas Ferre wrote:
>> On 04/12/2013 06:07, Jingoo Han :
>
>>>   out_free_irq:
>>> -	free_irq(irq, master);
>>>   out_unmap_regs:
>>>   out_free_buffer:
>
>> What about taking advantage of this cleanup patch to remove the 3
>> above unneeded tags?
>
>> Otherwise, you can add my:
>> Acked-by: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
>
> That's a good idea but it means going and changing all the gotos as well
> so it probably warrants a separate patch.  I applied this one as-is.

True! Thanks Mark.

Bye,
-- 
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Re: [PATCH 1/2] spi: spi-atmel: Use devm_*() functions

[Jingoo Han]

On Wednesday, December 04, 2013 8:59 PM, Mark Brown wrote:
> On Wed, Dec 04, 2013 at 10:47:36AM +0100, Nicolas Ferre wrote:
> > On 04/12/2013 06:07, Jingoo Han :
> 
> > >  out_free_irq:
> > >-	free_irq(irq, master);
> > >  out_unmap_regs:
> > >  out_free_buffer:
> 
> > What about taking advantage of this cleanup patch to remove the 3
> > above unneeded tags?
> 
> > Otherwise, you can add my:
> > Acked-by: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
> 
> That's a good idea but it means going and changing all the gotos as well
> so it probably warrants a separate patch.  I applied this one as-is.

Hi Mark Brown, 

I checked your for-next branch of spi.git.
However, in this commit, 'Acked-by:' was omitted as below:

Signed-off-by: Jingoo Han <jg1.han-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
---> Acked-by: Nicolas Ferre <nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Mark Brown <broonie-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

When you merge your topics next time, would you add 'Acked-by:'
to this commit? :-)
Thank you.

Best regards,
Jingoo Han

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