# \[PATCH V7 06/10\] remoteproc: imx\_rproc: use devm\_ioremap - From: peng.fan@nxp.com - Date: 2021-01-18 12:37:31 - List: linux-devicetree - Page: https://ratatoskr.run/linux-devicetree/2021/01/6238421 - Thread: https://ratatoskr.run/linux-devicetree/2021/01/6238461/t.md ```text From: Peng Fan 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 Reviewed-by: Richard Zhu Signed-off-by: Peng Fan Reviewed-by: Mathieu Poirier --- drivers/remoteproc/imx_rproc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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 ```