[PATCH V3 4/8] remoteproc: imx_rproc: make clk optional

2021-04-07 Thread peng . fan
From: Peng Fan 

To i.MX7ULP, M4 is the master to control everything, so it not need
clk from A7.

Reviewed-by: Richard Zhu 
Signed-off-by: Peng Fan 
---
 drivers/remoteproc/imx_rproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index d6338872c6db..ca17f520d904 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -635,7 +635,7 @@ static int imx_rproc_probe(struct platform_device *pdev)
if (ret)
goto err_put_mbox;
 
-   priv->clk = devm_clk_get(dev, NULL);
+   priv->clk = devm_clk_get_optional(dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(dev, "Failed to get clock\n");
ret = PTR_ERR(priv->clk);
-- 
2.30.0



Re: [PATCH V3 4/8] remoteproc: imx_rproc: make clk optional

2021-04-13 Thread Mathieu Poirier
On Thu, Apr 08, 2021 at 09:54:54AM +0800, peng@oss.nxp.com wrote:
> From: Peng Fan 
> 
> To i.MX7ULP, M4 is the master to control everything, so it not need
> clk from A7.
> 
> Reviewed-by: Richard Zhu 
> Signed-off-by: Peng Fan 
> ---
>  drivers/remoteproc/imx_rproc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index d6338872c6db..ca17f520d904 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -635,7 +635,7 @@ static int imx_rproc_probe(struct platform_device *pdev)
>   if (ret)
>   goto err_put_mbox;
>  
> - priv->clk = devm_clk_get(dev, NULL);
> + priv->clk = devm_clk_get_optional(dev, NULL);

Overnight the clock becomes optional for all remote processors?  Why not call
devm_clk_get() or devm_clk_get_optional() based on the remote processor type in
a new function called imx_rproc_clk_get()?

>   if (IS_ERR(priv->clk)) {
>   dev_err(dev, "Failed to get clock\n");
>   ret = PTR_ERR(priv->clk);
> -- 
> 2.30.0
>