| Message ID | 20250330210717.46080-9-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for DU and DSI on the Renesas RZ/V2H(P) SoC | expand |
Hi Prabhakar, Thanks for the patch. > -----Original Message----- > From: Prabhakar <prabhakar.csengg@gmail.com> > Sent: 30 March 2025 22:07 > Subject: [PATCH 08/17] drm: renesas: rz-du: mipi_dsi: Add min check for VCLK range > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > The VCLK range for Renesas RZ/G2L SoC is 148.5 MHz to 5.803 MHz. Add a minimum clock check in the > mode_valid callback to ensure that the clock value does not fall below the valid range. > > 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> Cheers, Biju > --- > drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c | 3 +++ > 1 file changed, 3 insertions(+) > > 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 fa7a1ae22aa3..c6f60b7f203b 100644 > --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c > +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c > @@ -585,6 +585,9 @@ rzg2l_mipi_dsi_bridge_mode_valid(struct drm_bridge *bridge, > if (mode->clock > 148500) > return MODE_CLOCK_HIGH; > > + if (mode->clock < 5803) > + return MODE_CLOCK_LOW; > + > return MODE_OK; > } > > -- > 2.49.0
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 fa7a1ae22aa3..c6f60b7f203b 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c @@ -585,6 +585,9 @@ rzg2l_mipi_dsi_bridge_mode_valid(struct drm_bridge *bridge, if (mode->clock > 148500) return MODE_CLOCK_HIGH; + if (mode->clock < 5803) + return MODE_CLOCK_LOW; + return MODE_OK; }