[PATCH v5 04/10] coresight: Appropriately disable programming clocks

[Mark Brown]

On Thu, Jul 24, 2025 at 04:22:34PM +0100, Leo Yan wrote:

>  static inline struct clk *coresight_get_enable_apb_pclk(struct device *dev)
>  {
>  	struct clk *pclk;
> -	int ret;
>  
> -	pclk = clk_get(dev, "apb_pclk");
> -	if (IS_ERR(pclk)) {
> -		pclk = clk_get(dev, "apb");
> -		if (IS_ERR(pclk))
> -			return NULL;
> -	}

Previously we would return NULL for any error (which isn't super great
for deferred probe but never mind).

> +	pclk = devm_clk_get_enabled(dev, "apb_pclk");
> +	if (IS_ERR(pclk))
> +		pclk = devm_clk_get_enabled(dev, "apb");

...

>  	return pclk;
>  }

Now we pass errors back to the caller, making missing clocks fatal.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20250728/a7ed4243/attachment.sig>