From: Lad Prabhakar <[email protected]>

Update the DU CRTC initialisation to request the reset control using
devm_reset_control_get_optional_shared(). On RZ/T2H SoCs the DU block does
not expose a reset line, and treating the reset as mandatory prevents the
driver from probing on those platforms.

Signed-off-by: Lad Prabhakar <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
---
v1->v2:
- Added Reviewed-by tag from Laurent Pinchart.
---
 drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c 
b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
index 26b95153ce88..48065f4952a3 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c
@@ -380,7 +380,7 @@ int rzg2l_du_crtc_create(struct rzg2l_du_device *rcdu)
        struct drm_plane *primary;
        int ret;
 
-       rcrtc->rstc = devm_reset_control_get_shared(rcdu->dev, NULL);
+       rcrtc->rstc = devm_reset_control_get_optional_shared(rcdu->dev, NULL);
        if (IS_ERR(rcrtc->rstc)) {
                dev_err(rcdu->dev, "can't get cpg reset\n");
                return PTR_ERR(rcrtc->rstc);
-- 
2.54.0

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