[PATCH 2/4] drm/panel: ilitek-ili9881c: Add support for two-lane configuration

Dmitry Baryshkov dmitry.baryshkov at oss.qualcomm.com
Thu Apr 10 09:47:38 UTC 2025


On Thu, Apr 10, 2025 at 12:34:15PM +0300, Dmitry Baryshkov wrote:
> On Tue, Apr 08, 2025 at 05:27:01PM +0200, Kory Maincent wrote:
> > Enable support for two-lane configuration which is done by setting the
> > LANSEL_SW_EN and LANSEL_SW bits in the Pad Control register.
> > 
> > Use the dsi-lanes device tree parameter to configure the number of lanes.
> > The default configuration remains set to four lanes.
> > 
> > Signed-off-by: Kory Maincent <kory.maincent at bootlin.com>
> > ---
> >  drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 35 +++++++++++++++++++++++++--
> >  1 file changed, 33 insertions(+), 2 deletions(-)
> > 
> > @@ -1504,7 +1523,7 @@ static const struct drm_panel_funcs ili9881c_funcs = {
> >  static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi)
> >  {
> >  	struct ili9881c *ctx;
> > -	int ret;
> > +	int ret, lanes;
> >  
> >  	ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
> >  	if (!ctx)
> > @@ -1545,11 +1564,23 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi)
> >  	if (ret)
> >  		return ret;
> >  
> > +	ret = of_property_read_u32(dsi->dev.of_node, "dsi-lanes", &lanes);
> 
> Use dsi->lanes instead.

Please ignore this comment :-)

> 

-- 
With best wishes
Dmitry


More information about the dri-devel mailing list