[PATCH v1 1/3] ata: sata_dwc_460ex: Use devm_platform_*ioremap_resource() APIs

[PATCH v1 1/3] ata: sata_dwc_460ex: Use devm_platform_*ioremap_resource() APIs

[Andy Shevchenko]

Use devm_platform_get_and_ioremap_resource() and
devm_platform_ioremap_resource() APIs instead of their
open coded analogues.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/ata/sata_dwc_460ex.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 338c2e50f759..513bee589d12 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -237,7 +237,6 @@ static int sata_dwc_dma_init_old(struct platform_device *pdev,
 				 struct sata_dwc_device *hsdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	struct resource *res;
 
 	hsdev->dma = devm_kzalloc(&pdev->dev, sizeof(*hsdev->dma), GFP_KERNEL);
 	if (!hsdev->dma)
@@ -254,8 +253,7 @@ static int sata_dwc_dma_init_old(struct platform_device *pdev,
 	}
 
 	/* Get physical SATA DMA register base address */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	hsdev->dma->regs = devm_ioremap_resource(&pdev->dev, res);
+	hsdev->dma->regs = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(hsdev->dma->regs))
 		return PTR_ERR(hsdev->dma->regs);
 
@@ -1228,8 +1226,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	host->private_data = hsdev;
 
 	/* Ioremap SATA registers */
-	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&ofdev->dev, res);
+	base = devm_platform_get_and_ioremap_resource(ofdev, 0, &res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 	dev_dbg(&ofdev->dev, "ioremap done for SATA register address\n");
-- 
2.33.0

[PATCH v1 2/3] ata: sata_dwc_460ex: Use temporary variable for struct device

[Andy Shevchenko]

Use temporary variable for struct device to make code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/ata/sata_dwc_460ex.c | 37 ++++++++++++++++++------------------
 1 file changed, 19 insertions(+), 18 deletions(-)

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 513bee589d12..5421f74c0199 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -215,9 +215,10 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
 {
 	struct sata_dwc_device *hsdev = hsdevp->hsdev;
 	struct dw_dma_slave *dws = &sata_dwc_dma_dws;
+	struct device *dev = hsdev->dev;
 	dma_cap_mask_t mask;
 
-	dws->dma_dev = hsdev->dev;
+	dws->dma_dev = dev;
 
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
@@ -225,8 +226,7 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
 	/* Acquire DMA channel */
 	hsdevp->chan = dma_request_channel(mask, sata_dwc_dma_filter, hsdevp);
 	if (!hsdevp->chan) {
-		dev_err(hsdev->dev, "%s: dma channel unavailable\n",
-			 __func__);
+		dev_err(dev, "%s: dma channel unavailable\n", __func__);
 		return -EAGAIN;
 	}
 
@@ -236,19 +236,20 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
 static int sata_dwc_dma_init_old(struct platform_device *pdev,
 				 struct sata_dwc_device *hsdev)
 {
-	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
 
-	hsdev->dma = devm_kzalloc(&pdev->dev, sizeof(*hsdev->dma), GFP_KERNEL);
+	hsdev->dma = devm_kzalloc(dev, sizeof(*hsdev->dma), GFP_KERNEL);
 	if (!hsdev->dma)
 		return -ENOMEM;
 
-	hsdev->dma->dev = &pdev->dev;
+	hsdev->dma->dev = dev;
 	hsdev->dma->id = pdev->id;
 
 	/* Get SATA DMA interrupt number */
 	hsdev->dma->irq = irq_of_parse_and_map(np, 1);
 	if (hsdev->dma->irq == NO_IRQ) {
-		dev_err(&pdev->dev, "no SATA DMA irq\n");
+		dev_err(dev, "no SATA DMA irq\n");
 		return -ENODEV;
 	}
 
@@ -1205,6 +1206,8 @@ static const struct ata_port_info sata_dwc_port_info[] = {
 
 static int sata_dwc_probe(struct platform_device *ofdev)
 {
+	struct device *dev = &ofdev->dev;
+	struct device_node *np = dev->of_node;
 	struct sata_dwc_device *hsdev;
 	u32 idr, versionr;
 	char *ver = (char *)&versionr;
@@ -1214,12 +1217,11 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	struct ata_host *host;
 	struct ata_port_info pi = sata_dwc_port_info[0];
 	const struct ata_port_info *ppi[] = { &pi, NULL };
-	struct device_node *np = ofdev->dev.of_node;
 	struct resource *res;
 
 	/* Allocate DWC SATA device */
-	host = ata_host_alloc_pinfo(&ofdev->dev, ppi, SATA_DWC_MAX_PORTS);
-	hsdev = devm_kzalloc(&ofdev->dev, sizeof(*hsdev), GFP_KERNEL);
+	host = ata_host_alloc_pinfo(dev, ppi, SATA_DWC_MAX_PORTS);
+	hsdev = devm_kzalloc(dev, sizeof(*hsdev), GFP_KERNEL);
 	if (!host || !hsdev)
 		return -ENOMEM;
 
@@ -1229,7 +1231,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	base = devm_platform_get_and_ioremap_resource(ofdev, 0, &res);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
-	dev_dbg(&ofdev->dev, "ioremap done for SATA register address\n");
+	dev_dbg(dev, "ioremap done for SATA register address\n");
 
 	/* Synopsys DWC SATA specific Registers */
 	hsdev->sata_dwc_regs = base + SATA_DWC_REG_OFFSET;
@@ -1243,11 +1245,10 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	/* Read the ID and Version Registers */
 	idr = sata_dwc_readl(&hsdev->sata_dwc_regs->idr);
 	versionr = sata_dwc_readl(&hsdev->sata_dwc_regs->versionr);
-	dev_notice(&ofdev->dev, "id %d, controller version %c.%c%c\n",
-		   idr, ver[0], ver[1], ver[2]);
+	dev_notice(dev, "id %d, controller version %c.%c%c\n", idr, ver[0], ver[1], ver[2]);
 
 	/* Save dev for later use in dev_xxx() routines */
-	hsdev->dev = &ofdev->dev;
+	hsdev->dev = dev;
 
 	/* Enable SATA Interrupts */
 	sata_dwc_enable_interrupts(hsdev);
@@ -1255,7 +1256,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	/* Get SATA interrupt number */
 	irq = irq_of_parse_and_map(np, 0);
 	if (irq == NO_IRQ) {
-		dev_err(&ofdev->dev, "no SATA DMA irq\n");
+		dev_err(dev, "no SATA DMA irq\n");
 		return -ENODEV;
 	}
 
@@ -1267,7 +1268,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	}
 #endif
 
-	hsdev->phy = devm_phy_optional_get(hsdev->dev, "sata-phy");
+	hsdev->phy = devm_phy_optional_get(dev, "sata-phy");
 	if (IS_ERR(hsdev->phy))
 		return PTR_ERR(hsdev->phy);
 
@@ -1282,7 +1283,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
 	 */
 	err = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht);
 	if (err)
-		dev_err(&ofdev->dev, "failed to activate host");
+		dev_err(dev, "failed to activate host");
 
 	return 0;
 
@@ -1306,7 +1307,7 @@ static int sata_dwc_remove(struct platform_device *ofdev)
 	sata_dwc_dma_exit_old(hsdev);
 #endif
 
-	dev_dbg(&ofdev->dev, "done\n");
+	dev_dbg(dev, "done\n");
 	return 0;
 }
 
-- 
2.33.0

[PATCH v1 3/3] ata: sata_dwc_460ex: Remove unused forward declaration

[Andy Shevchenko]

sata_dwc_port_stop() is not used before being defined,
remove redundant forward declaration.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/ata/sata_dwc_460ex.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 5421f74c0199..bd4859563796 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -185,7 +185,6 @@ static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag);
 static int sata_dwc_qc_complete(struct ata_port *ap, struct ata_queued_cmd *qc,
 				u32 check_status);
 static void sata_dwc_dma_xfer_complete(struct ata_port *ap, u32 check_status);
-static void sata_dwc_port_stop(struct ata_port *ap);
 static void sata_dwc_clear_dmacr(struct sata_dwc_device_port *hsdevp, u8 tag);
 
 #ifdef CONFIG_SATA_DWC_OLD_DMA
-- 
2.33.0

Re: [PATCH v1 2/3] ata: sata_dwc_460ex: Use temporary variable for struct device

[Damien Le Moal]

On 2021/12/09 23:35, Andy Shevchenko wrote:
> Use temporary variable for struct device to make code neater.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

What is this based on ? Is this on top of Hannes series ?

> ---
>  drivers/ata/sata_dwc_460ex.c | 37 ++++++++++++++++++------------------
>  1 file changed, 19 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
> index 513bee589d12..5421f74c0199 100644
> --- a/drivers/ata/sata_dwc_460ex.c
> +++ b/drivers/ata/sata_dwc_460ex.c
> @@ -215,9 +215,10 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
>  {
>  	struct sata_dwc_device *hsdev = hsdevp->hsdev;
>  	struct dw_dma_slave *dws = &sata_dwc_dma_dws;
> +	struct device *dev = hsdev->dev;
>  	dma_cap_mask_t mask;
>  
> -	dws->dma_dev = hsdev->dev;
> +	dws->dma_dev = dev;
>  
>  	dma_cap_zero(mask);
>  	dma_cap_set(DMA_SLAVE, mask);
> @@ -225,8 +226,7 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
>  	/* Acquire DMA channel */
>  	hsdevp->chan = dma_request_channel(mask, sata_dwc_dma_filter, hsdevp);
>  	if (!hsdevp->chan) {
> -		dev_err(hsdev->dev, "%s: dma channel unavailable\n",
> -			 __func__);
> +		dev_err(dev, "%s: dma channel unavailable\n", __func__);
>  		return -EAGAIN;
>  	}
>  
> @@ -236,19 +236,20 @@ static int sata_dwc_dma_get_channel_old(struct sata_dwc_device_port *hsdevp)
>  static int sata_dwc_dma_init_old(struct platform_device *pdev,
>  				 struct sata_dwc_device *hsdev)
>  {
> -	struct device_node *np = pdev->dev.of_node;
> +	struct device *dev = &pdev->dev;
> +	struct device_node *np = dev->of_node;
>  
> -	hsdev->dma = devm_kzalloc(&pdev->dev, sizeof(*hsdev->dma), GFP_KERNEL);
> +	hsdev->dma = devm_kzalloc(dev, sizeof(*hsdev->dma), GFP_KERNEL);
>  	if (!hsdev->dma)
>  		return -ENOMEM;
>  
> -	hsdev->dma->dev = &pdev->dev;
> +	hsdev->dma->dev = dev;
>  	hsdev->dma->id = pdev->id;
>  
>  	/* Get SATA DMA interrupt number */
>  	hsdev->dma->irq = irq_of_parse_and_map(np, 1);
>  	if (hsdev->dma->irq == NO_IRQ) {
> -		dev_err(&pdev->dev, "no SATA DMA irq\n");
> +		dev_err(dev, "no SATA DMA irq\n");
>  		return -ENODEV;
>  	}
>  
> @@ -1205,6 +1206,8 @@ static const struct ata_port_info sata_dwc_port_info[] = {
>  
>  static int sata_dwc_probe(struct platform_device *ofdev)
>  {
> +	struct device *dev = &ofdev->dev;
> +	struct device_node *np = dev->of_node;
>  	struct sata_dwc_device *hsdev;
>  	u32 idr, versionr;
>  	char *ver = (char *)&versionr;
> @@ -1214,12 +1217,11 @@ static int sata_dwc_probe(struct platform_device *ofdev)
>  	struct ata_host *host;
>  	struct ata_port_info pi = sata_dwc_port_info[0];
>  	const struct ata_port_info *ppi[] = { &pi, NULL };
> -	struct device_node *np = ofdev->dev.of_node;
>  	struct resource *res;
>  
>  	/* Allocate DWC SATA device */
> -	host = ata_host_alloc_pinfo(&ofdev->dev, ppi, SATA_DWC_MAX_PORTS);
> -	hsdev = devm_kzalloc(&ofdev->dev, sizeof(*hsdev), GFP_KERNEL);
> +	host = ata_host_alloc_pinfo(dev, ppi, SATA_DWC_MAX_PORTS);
> +	hsdev = devm_kzalloc(dev, sizeof(*hsdev), GFP_KERNEL);
>  	if (!host || !hsdev)
>  		return -ENOMEM;
>  
> @@ -1229,7 +1231,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
>  	base = devm_platform_get_and_ioremap_resource(ofdev, 0, &res);
>  	if (IS_ERR(base))
>  		return PTR_ERR(base);
> -	dev_dbg(&ofdev->dev, "ioremap done for SATA register address\n");
> +	dev_dbg(dev, "ioremap done for SATA register address\n");
>  
>  	/* Synopsys DWC SATA specific Registers */
>  	hsdev->sata_dwc_regs = base + SATA_DWC_REG_OFFSET;
> @@ -1243,11 +1245,10 @@ static int sata_dwc_probe(struct platform_device *ofdev)
>  	/* Read the ID and Version Registers */
>  	idr = sata_dwc_readl(&hsdev->sata_dwc_regs->idr);
>  	versionr = sata_dwc_readl(&hsdev->sata_dwc_regs->versionr);
> -	dev_notice(&ofdev->dev, "id %d, controller version %c.%c%c\n",
> -		   idr, ver[0], ver[1], ver[2]);
> +	dev_notice(dev, "id %d, controller version %c.%c%c\n", idr, ver[0], ver[1], ver[2]);
>  
>  	/* Save dev for later use in dev_xxx() routines */
> -	hsdev->dev = &ofdev->dev;
> +	hsdev->dev = dev;
>  
>  	/* Enable SATA Interrupts */
>  	sata_dwc_enable_interrupts(hsdev);
> @@ -1255,7 +1256,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
>  	/* Get SATA interrupt number */
>  	irq = irq_of_parse_and_map(np, 0);
>  	if (irq == NO_IRQ) {
> -		dev_err(&ofdev->dev, "no SATA DMA irq\n");
> +		dev_err(dev, "no SATA DMA irq\n");
>  		return -ENODEV;
>  	}
>  
> @@ -1267,7 +1268,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
>  	}
>  #endif
>  
> -	hsdev->phy = devm_phy_optional_get(hsdev->dev, "sata-phy");
> +	hsdev->phy = devm_phy_optional_get(dev, "sata-phy");
>  	if (IS_ERR(hsdev->phy))
>  		return PTR_ERR(hsdev->phy);
>  
> @@ -1282,7 +1283,7 @@ static int sata_dwc_probe(struct platform_device *ofdev)
>  	 */
>  	err = ata_host_activate(host, irq, sata_dwc_isr, 0, &sata_dwc_sht);
>  	if (err)
> -		dev_err(&ofdev->dev, "failed to activate host");
> +		dev_err(dev, "failed to activate host");
>  
>  	return 0;
>  
> @@ -1306,7 +1307,7 @@ static int sata_dwc_remove(struct platform_device *ofdev)
>  	sata_dwc_dma_exit_old(hsdev);
>  #endif
>  
> -	dev_dbg(&ofdev->dev, "done\n");
> +	dev_dbg(dev, "done\n");
>  	return 0;
>  }
>  


-- 
Damien Le Moal
Western Digital Research

Re: [PATCH v1 2/3] ata: sata_dwc_460ex: Use temporary variable for struct device

[Andy Shevchenko]

On Fri, Dec 10, 2021 at 4:25 AM Damien Le Moal
<damien.lemoal@opensource.wdc.com> wrote:
>
> On 2021/12/09 23:35, Andy Shevchenko wrote:
> > Use temporary variable for struct device to make code neater.
> >
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>
> What is this based on ? Is this on top of Hannes series ?

Nope, on latest (available) Linux Next.
Hannes, can you incorporate this to yours maybe? I see one conflict
with the last patch.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v1 2/3] ata: sata_dwc_460ex: Use temporary variable for struct device

[Hannes Reinecke]

On 12/10/21 9:42 AM, Andy Shevchenko wrote:
> On Fri, Dec 10, 2021 at 4:25 AM Damien Le Moal
> <damien.lemoal@opensource.wdc.com> wrote:
>>
>> On 2021/12/09 23:35, Andy Shevchenko wrote:
>>> Use temporary variable for struct device to make code neater.
>>>
>>> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
>>
>> What is this based on ? Is this on top of Hannes series ?
> 
> Nope, on latest (available) Linux Next.
> Hannes, can you incorporate this to yours maybe? I see one conflict
> with the last patch.
> 
Sure.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		           Kernel Storage Architect
hare@suse.de			                  +49 911 74053 688
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), GF: Felix Imendörffer

Re: [PATCH v1 2/3] ata: sata_dwc_460ex: Use temporary variable for struct device

[Damien Le Moal]

On 12/9/21 23:35, Andy Shevchenko wrote:
> Use temporary variable for struct device to make code neater.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Applied all 3 patche to for-5.17.

Hannes,

Please rebase your v3 series on that branch.
(if possible, I would like to get it soon, pleasse !)


-- 
Damien Le Moal
Western Digital Research