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[1/2] ASoC: tegra30: ahub: Use of_device_get_match_data

Message ID e568d621c9c05ee23732a6a6f9e3606a780b1707.1628971397.git.aakashhemadri123@gmail.com
State Accepted
Commit 80165bb8043391f4ef4916bde947a4d805a54aa6
Headers show
Series ASoC: tegra: Use of_device_get_match_data | expand

Commit Message

Aakash Hemadri Aug. 14, 2021, 8:12 p.m. UTC
Prefer `of_device_get_match_data` over `of_match_device`

Retrieve OF match data using `of_device_get_match_data`, this is cleaner
and better expresses intent.

Signed-off-by: Aakash Hemadri <aakashhemadri123@gmail.com>
---
 sound/soc/tegra/tegra30_ahub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Bjorn Helgaas Aug. 16, 2021, 6:02 p.m. UTC | #1
On Sun, Aug 15, 2021 at 01:42:18AM +0530, Aakash Hemadri wrote:
> Prefer `of_device_get_match_data` over `of_match_device`
> 
> Retrieve OF match data using `of_device_get_match_data`, this is cleaner
> and better expresses intent.
> 
> Signed-off-by: Aakash Hemadri <aakashhemadri123@gmail.com>
> ---
>  sound/soc/tegra/tegra30_ahub.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
> index b3e1df693381..0ac109b32329 100644
> --- a/sound/soc/tegra/tegra30_ahub.c
> +++ b/sound/soc/tegra/tegra30_ahub.c
> @@ -518,7 +518,7 @@ static int tegra30_ahub_probe(struct platform_device *pdev)
>  	void __iomem *regs_apbif, *regs_ahub;
>  	int ret = 0;
>  
> -	match = of_match_device(tegra30_ahub_of_match, &pdev->dev);
> +	match = of_device_get_match_data(&pdev->dev);

I think this is incorrect.

  const struct of_device_id *of_match_device(...)
  const void *of_device_get_match_data(...)

of_match_device() returns "struct of_device_id *", i.e., "match".

of_device_get_match_data() calls of_match_device() internally, then
returns "match->data".

>  	if (!match)
>  		return -EINVAL;
>  	soc_data = match->data;
> -- 
> 2.32.0
>
Mark Brown Aug. 16, 2021, 6:39 p.m. UTC | #2
On Sun, Aug 15, 2021 at 01:42:18AM +0530, Aakash Hemadri wrote:

> -	match = of_match_device(tegra30_ahub_of_match, &pdev->dev);
> +	match = of_device_get_match_data(&pdev->dev);
>  	if (!match)

Thierry, are you sure about your review here?  As others have been
pointing out of_device_get_match_data() returns match->data while
of_match_device() returns the device.
diff mbox series

Patch

diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index b3e1df693381..0ac109b32329 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -518,7 +518,7 @@  static int tegra30_ahub_probe(struct platform_device *pdev)
 	void __iomem *regs_apbif, *regs_ahub;
 	int ret = 0;
 
-	match = of_match_device(tegra30_ahub_of_match, &pdev->dev);
+	match = of_device_get_match_data(&pdev->dev);
 	if (!match)
 		return -EINVAL;
 	soc_data = match->data;