diff options
| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2025-06-09 23:56:26 +0100 |
|---|---|---|
| committer | Biju Das <biju.das.jz@bp.renesas.com> | 2025-06-12 19:42:27 +0100 |
| commit | e96bec001af60857ece60b5fd10caa9886bbf12d (patch) | |
| tree | ac9942a5e147f2ec9edfd695fb3ebd7f07d2692a | |
| parent | 2991c3f0ca8632264569f7c045f37ecdb71a05da (diff) | |
drm: renesas: rz-du: mipi_dsi: Make "rst" reset control optional for RZ/V2H(P)
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).
Co-developed-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20250609225630.502888-6-prabhakar.mahadev-lad.rj@bp.renesas.com
| -rw-r--r-- | drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 2 |
1 files changed, 1 insertions, 1 deletions
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 85074e0c3cc4..d4f2867e0c5f 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c @@ -937,7 +937,7 @@ 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"); |