From: Lad Prabhakar <prabhakar.mahadev-lad...@bp.renesas.com>
In preparation for adding support for the Renesas RZ/V2H(P) SoC, make the
"rst" reset control optional in the MIPI DSI driver. The RZ/V2H(P) SoC
does not provide this reset line, and attempting to acquire it using the
mandatory API causes probe failure.
Switching to devm_reset_control_get_optional_exclusive() ensures
compatibility with both SoCs that provide this reset line and those that
do not, such as RZ/V2H(P).
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad...@bp.renesas.com>
---
v4->v5:
- New patch
---
drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index 00c2bc6e9d6c..5fc607be0c46 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -748,7 +748,7 @@ static int rzg2l_mipi_dsi_probe(struct platform_device
*pdev)
if (IS_ERR(dsi->vclk))
return PTR_ERR(dsi->vclk);
- dsi->rstc = devm_reset_control_get_exclusive(dsi->dev, "rst");
+ dsi->rstc = devm_reset_control_get_optional_exclusive(dsi->dev, "rst");
if (IS_ERR(dsi->rstc))
return dev_err_probe(dsi->dev, PTR_ERR(dsi->rstc),
"failed to get rst\n");
--
2.49.0
