* [PATCH] bus: fsl-mc: fsl-mc-bus: Use devm_platform_ioremap_resource() to simplify code
@ 2021-07-20 12:50 Tang Bin
2021-07-21 14:34 ` Laurentiu Tudor
0 siblings, 1 reply; 3+ messages in thread
From: Tang Bin @ 2021-07-20 12:50 UTC (permalink / raw)
To: stuyoder, laurentiu.tudor; +Cc: linux-kernel, Tang Bin, Zhang Shengju
Use devm_platform_ioremap_resource() instead of
platform_get_resource() + devm_ioremap_resource().
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 380ad1fdb745..472f0daf4271 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -1080,12 +1080,9 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, mc);
- plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (plat_res) {
- mc->fsl_mc_regs = devm_ioremap_resource(&pdev->dev, plat_res);
- if (IS_ERR(mc->fsl_mc_regs))
- return PTR_ERR(mc->fsl_mc_regs);
- }
+ mc->fsl_mc_regs = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(mc->fsl_mc_regs))
+ return PTR_ERR(mc->fsl_mc_regs);
if (mc->fsl_mc_regs) {
/*
--
2.18.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] bus: fsl-mc: fsl-mc-bus: Use devm_platform_ioremap_resource() to simplify code
2021-07-20 12:50 [PATCH] bus: fsl-mc: fsl-mc-bus: Use devm_platform_ioremap_resource() to simplify code Tang Bin
@ 2021-07-21 14:34 ` Laurentiu Tudor
0 siblings, 0 replies; 3+ messages in thread
From: Laurentiu Tudor @ 2021-07-21 14:34 UTC (permalink / raw)
To: Tang Bin, stuyoder; +Cc: linux-kernel, Zhang Shengju
On 7/20/2021 3:50 PM, Tang Bin wrote:
> Use devm_platform_ioremap_resource() instead of
> platform_get_resource() + devm_ioremap_resource().
>
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
> ---
> drivers/bus/fsl-mc/fsl-mc-bus.c | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
> index 380ad1fdb745..472f0daf4271 100644
> --- a/drivers/bus/fsl-mc/fsl-mc-bus.c
> +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
> @@ -1080,12 +1080,9 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
>
> platform_set_drvdata(pdev, mc);
>
> - plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> - if (plat_res) {
> - mc->fsl_mc_regs = devm_ioremap_resource(&pdev->dev, plat_res);
> - if (IS_ERR(mc->fsl_mc_regs))
> - return PTR_ERR(mc->fsl_mc_regs);
> - }
> + mc->fsl_mc_regs = devm_platform_ioremap_resource(pdev, 1);
> + if (IS_ERR(mc->fsl_mc_regs))
> + return PTR_ERR(mc->fsl_mc_regs);
Thanks for the patch, but this is not ok as it alters the original
behavior. Not having region1 in the device tree is a valid scenario, see
binding [1] while not being able to read is an error. Your change treats
both cases as error.
[1]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt#n58
---
Best Regards, Laurentiu
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] bus: fsl-mc: fsl-mc-bus: Use devm_platform_ioremap_resource() to simplify code
@ 2021-06-28 14:34 Tang Bin
0 siblings, 0 replies; 3+ messages in thread
From: Tang Bin @ 2021-06-28 14:34 UTC (permalink / raw)
To: stuyoder, laurentiu.tudor; +Cc: linux-kernel, Tang Bin, Zhang Shengju
Use devm_platform_ioremap_resource() instead of
platform_get_resource() + devm_ioremap_resource().
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 380ad1fdb745..472f0daf4271 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -1080,12 +1080,9 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, mc);
- plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (plat_res) {
- mc->fsl_mc_regs = devm_ioremap_resource(&pdev->dev, plat_res);
- if (IS_ERR(mc->fsl_mc_regs))
- return PTR_ERR(mc->fsl_mc_regs);
- }
+ mc->fsl_mc_regs = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(mc->fsl_mc_regs))
+ return PTR_ERR(mc->fsl_mc_regs);
if (mc->fsl_mc_regs) {
/*
--
2.18.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
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