Re: [PATCH V5 4/8] remoteproc: imx_rproc: use devm_ioremap

[Mathieu Poirier]

On Tue, Dec 29, 2020 at 11:30:15AM +0800, peng.fan@xxxxxxx wrote:
> From: Peng Fan <peng.fan@xxxxxxx>
> 
> We might need to map an region multiple times, becaue the region might
> be shared between remote processors, such i.MX8QM with dual M4 cores.
> So use devm_ioremap, not devm_ioremap_resource.
> 
> Reviewed-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
> Reviewed-by: Richard Zhu <hongxing.zhu@xxxxxxx>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
>  drivers/remoteproc/imx_rproc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>

> 
> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 2a093cea4997..47fc1d06be6a 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -296,7 +296,8 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
>  		if (b >= IMX7D_RPROC_MEM_MAX)
>  			break;
>  
> -		priv->mem[b].cpu_addr = devm_ioremap_resource(&pdev->dev, &res);
> +		/* Not use resource version, because we might share region */
> +		priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev, res.start, resource_size(&res));
>  		if (IS_ERR(priv->mem[b].cpu_addr)) {
>  			dev_err(dev, "failed to remap %pr\n", &res);
>  			err = PTR_ERR(priv->mem[b].cpu_addr);
> -- 
> 2.28.0
>