* [PATCH] gpu: host1x: use dev_err_probe() in probe path
@ 2025-07-28 0:15 Akhilesh Patil
2025-08-22 3:18 ` Mikko Perttunen
2025-08-22 6:14 ` [PATCH v2] " Akhilesh Patil
0 siblings, 2 replies; 5+ messages in thread
From: Akhilesh Patil @ 2025-07-28 0:15 UTC (permalink / raw)
To: thierry.reding, mperttunen, airlied, simona
Cc: dri-devel, linux-tegra, linux-kernel, akhileshpatilvnit, skhan
Use dev_err_probe() helper as recommended by core driver model in
drivers/base/core.c to handle deferred probe error. Improve code
consistency and debuggability using standard helper.
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
---
drivers/gpu/host1x/dev.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 1f93e5e276c0..e6f3cbeb9ae5 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -587,11 +587,7 @@ static int host1x_probe(struct platform_device *pdev)
host->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(host->clk)) {
err = PTR_ERR(host->clk);
-
- if (err != -EPROBE_DEFER)
- dev_err(&pdev->dev, "failed to get clock: %d\n", err);
-
- return err;
+ return dev_err_probe(&pdev->dev, err, "failed to get clock: %d\n", err);
}
err = host1x_get_resets(host);
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] gpu: host1x: use dev_err_probe() in probe path
2025-07-28 0:15 [PATCH] gpu: host1x: use dev_err_probe() in probe path Akhilesh Patil
@ 2025-08-22 3:18 ` Mikko Perttunen
2025-08-22 6:00 ` Akhilesh Patil
2025-08-22 6:14 ` [PATCH v2] " Akhilesh Patil
1 sibling, 1 reply; 5+ messages in thread
From: Mikko Perttunen @ 2025-08-22 3:18 UTC (permalink / raw)
To: thierry.reding, airlied, simona, Akhilesh Patil
Cc: dri-devel, linux-tegra, linux-kernel, akhileshpatilvnit, skhan
On Monday, July 28, 2025 9:15 AM Akhilesh Patil wrote:
> Use dev_err_probe() helper as recommended by core driver model in
> drivers/base/core.c to handle deferred probe error. Improve code
> consistency and debuggability using standard helper.
>
> Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
> ---
> drivers/gpu/host1x/dev.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
> index 1f93e5e276c0..e6f3cbeb9ae5 100644
> --- a/drivers/gpu/host1x/dev.c
> +++ b/drivers/gpu/host1x/dev.c
> @@ -587,11 +587,7 @@ static int host1x_probe(struct platform_device *pdev)
> host->clk = devm_clk_get(&pdev->dev, NULL);
> if (IS_ERR(host->clk)) {
> err = PTR_ERR(host->clk);
> -
> - if (err != -EPROBE_DEFER)
> - dev_err(&pdev->dev, "failed to get clock: %d\n",
err);
> -
> - return err;
> + return dev_err_probe(&pdev->dev, err, "failed to get clock:
%d\n", err);
AIUI, dev_err_probe already prints err, so we don't need to repeat it in the
message. With that, PTR_ERR(host->clk) can also be inlined into the
dev_err_probe call.
Cheers,
Mikko
> }
>
> err = host1x_get_resets(host);
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] gpu: host1x: use dev_err_probe() in probe path
2025-08-22 3:18 ` Mikko Perttunen
@ 2025-08-22 6:00 ` Akhilesh Patil
0 siblings, 0 replies; 5+ messages in thread
From: Akhilesh Patil @ 2025-08-22 6:00 UTC (permalink / raw)
To: Mikko Perttunen
Cc: thierry.reding, airlied, simona, dri-devel, linux-tegra,
linux-kernel, akhileshpatilvnit, skhan
On Fri, Aug 22, 2025 at 12:18:38PM +0900, Mikko Perttunen wrote:
> On Monday, July 28, 2025 9:15 AM Akhilesh Patil wrote:
> > Use dev_err_probe() helper as recommended by core driver model in
> > drivers/base/core.c to handle deferred probe error. Improve code
> > consistency and debuggability using standard helper.
> >
> > Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
> > ---
> > drivers/gpu/host1x/dev.c | 6 +-----
> > 1 file changed, 1 insertion(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
> > index 1f93e5e276c0..e6f3cbeb9ae5 100644
> > --- a/drivers/gpu/host1x/dev.c
> > +++ b/drivers/gpu/host1x/dev.c
> > @@ -587,11 +587,7 @@ static int host1x_probe(struct platform_device *pdev)
> > host->clk = devm_clk_get(&pdev->dev, NULL);
> > if (IS_ERR(host->clk)) {
> > err = PTR_ERR(host->clk);
> > -
> > - if (err != -EPROBE_DEFER)
> > - dev_err(&pdev->dev, "failed to get clock: %d\n",
> err);
> > -
> > - return err;
> > + return dev_err_probe(&pdev->dev, err, "failed to get clock:
> %d\n", err);
>
> AIUI, dev_err_probe already prints err, so we don't need to repeat it in the
> message. With that, PTR_ERR(host->clk) can also be inlined into the
> dev_err_probe call.
ACK. Thanks for the review.
Posted v2 addressing this with 6.17-rc2 rebased build tested.
Regards,
Akhilesh
>
> Cheers,
> Mikko
>
> > }
> >
> > err = host1x_get_resets(host);
>
>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v2] gpu: host1x: use dev_err_probe() in probe path
2025-07-28 0:15 [PATCH] gpu: host1x: use dev_err_probe() in probe path Akhilesh Patil
2025-08-22 3:18 ` Mikko Perttunen
@ 2025-08-22 6:14 ` Akhilesh Patil
2025-08-26 6:30 ` Mikko Perttunen
1 sibling, 1 reply; 5+ messages in thread
From: Akhilesh Patil @ 2025-08-22 6:14 UTC (permalink / raw)
To: thierry.reding, mperttunen, airlied, simona
Cc: dri-devel, linux-tegra, linux-kernel, akhileshpatilvnit, skhan
Use dev_err_probe() helper as recommended by core driver model in
drivers/base/core.c to handle deferred probe error. Improve code
consistency and debuggability using standard helper.
Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
---
V1 -> V2: addressed review comments as below.
* inline - err = PTR_ERR(host->clk) inside dev_err_probe()
* avoid printing err, as dev_err_probe() prints it internally.
* rebase and compile test with v6.17-rc2
drivers/gpu/host1x/dev.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 1f93e5e276c0..c586c242f2c2 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -585,14 +585,8 @@ static int host1x_probe(struct platform_device *pdev)
}
host->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(host->clk)) {
- err = PTR_ERR(host->clk);
-
- if (err != -EPROBE_DEFER)
- dev_err(&pdev->dev, "failed to get clock: %d\n", err);
-
- return err;
- }
+ if (IS_ERR(host->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(host->clk), "failed to get clock\n");
err = host1x_get_resets(host);
if (err)
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2] gpu: host1x: use dev_err_probe() in probe path
2025-08-22 6:14 ` [PATCH v2] " Akhilesh Patil
@ 2025-08-26 6:30 ` Mikko Perttunen
0 siblings, 0 replies; 5+ messages in thread
From: Mikko Perttunen @ 2025-08-26 6:30 UTC (permalink / raw)
To: thierry.reding, airlied, simona, Akhilesh Patil
Cc: dri-devel, linux-tegra, linux-kernel, akhileshpatilvnit, skhan
On Friday, August 22, 2025 3:14 PM Akhilesh Patil wrote:
> Use dev_err_probe() helper as recommended by core driver model in
> drivers/base/core.c to handle deferred probe error. Improve code
> consistency and debuggability using standard helper.
>
> Signed-off-by: Akhilesh Patil <akhilesh@ee.iitb.ac.in>
> ---
> V1 -> V2: addressed review comments as below.
> * inline - err = PTR_ERR(host->clk) inside dev_err_probe()
> * avoid printing err, as dev_err_probe() prints it internally.
> * rebase and compile test with v6.17-rc2
>
> drivers/gpu/host1x/dev.c | 10 ++--------
> 1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
> index 1f93e5e276c0..c586c242f2c2 100644
> --- a/drivers/gpu/host1x/dev.c
> +++ b/drivers/gpu/host1x/dev.c
> @@ -585,14 +585,8 @@ static int host1x_probe(struct platform_device *pdev)
> }
>
> host->clk = devm_clk_get(&pdev->dev, NULL);
> - if (IS_ERR(host->clk)) {
> - err = PTR_ERR(host->clk);
> -
> - if (err != -EPROBE_DEFER)
> - dev_err(&pdev->dev, "failed to get clock: %d\n",
err);
> -
> - return err;
> - }
> + if (IS_ERR(host->clk))
> + return dev_err_probe(&pdev->dev, PTR_ERR(host->clk), "failed
to get
> clock\n");
>
> err = host1x_get_resets(host);
> if (err)
Thanks!
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Mikko Perttunen <mperttunen@nvidia.com>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2025-08-26 6:30 UTC | newest]
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2025-07-28 0:15 [PATCH] gpu: host1x: use dev_err_probe() in probe path Akhilesh Patil
2025-08-22 3:18 ` Mikko Perttunen
2025-08-22 6:00 ` Akhilesh Patil
2025-08-22 6:14 ` [PATCH v2] " Akhilesh Patil
2025-08-26 6:30 ` Mikko Perttunen
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