Re: [PATCH 3/3] drm/panel-simple: add Gopher 2b LCD panel

[Artjom Vejsel]

Hello, thanks, Paul. I've sent V2.

On 22/07/2021 17.12, Paul Cercueil wrote:
> Hi Artjom,
>
> Le jeu., juil. 22 2021 at 17:04:32 +0300, Artjom Vejsel 
> <akawolf0@xxxxxxxxx> a écrit :
> > The Gopher 2b LCD panel is used in Gopher 2b handhelds.
> > It's simple panel with NewVision NV3047 driver,
> > but SPI lines are not connected.
> > It has no specific name, since it's unique to that handhelds.
> > lot name at AliExpress: 4.3 inch 40PIN TFT LCD Screen COG
> > NV3047 Drive IC 480(RGB)*272 No Touch 24Bit RGB Interface
> >
> > Signed-off-by: Artjom Vejsel <akawolf0@xxxxxxxxx>
> > ---
> >  drivers/gpu/drm/panel/panel-simple.c | 44 ++++++++++++++++++++++++++++
> >  1 file changed, 44 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/panel/panel-simple.c 
> > b/drivers/gpu/drm/panel/panel-simple.c
> > index 9b286bd4444f..9cce6b63a147 100644
> > --- a/drivers/gpu/drm/panel/panel-simple.c
> > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > @@ -4306,6 +4306,47 @@ static const struct panel_desc 
> > yes_optoelectronics_ytc700tlag_05_201c = {
> >      .connector_type = DRM_MODE_CONNECTOR_LVDS,
> >  };
> >
> > +static const struct drm_display_mode 
> > qishenglong_gopher2b_lcd_panel_modes[] = {
> > +    { /* 60 Hz */
> > +        .clock = 10800,
> > +        .hdisplay = 480,
> > +        .hsync_start = 480 + 77,
> > +        .hsync_end = 480 + 77 + 41,
> > +        .htotal = 480 + 77 + 41 + 2,
> > +        .vdisplay = 272,
> > +        .vsync_start = 272 + 16,
> > +        .vsync_end = 272 + 16 + 10,
> > +        .vtotal = 272 + 16 + 10 + 2,
> > +        .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
> > +    },
> > +    { /* 50 Hz */
> > +        .clock = 10800,
> > +        .hdisplay = 480,
> > +        .hsync_start = 480 + 17,
> > +        .hsync_end = 480 + 17 + 41,
> > +        .htotal = 480 + 17 + 41 + 2,
> > +        .vdisplay = 272,
> > +        .vsync_start = 272 + 116,
> > +        .vsync_end = 272 + 116 + 10,
> > +        .vtotal = 272 + 116 + 10 + 2,
> > +        .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
> > +    },
> > +};
> > +
> > +static const struct panel_desc qishenglong_gopher2b_lcd_panel = {
> > +    .modes = qishenglong_gopher2b_lcd_panel_modes,
> > +    .num_modes = ARRAY_SIZE(qishenglong_gopher2b_lcd_panel_modes),
> > +    .num_modes = 1,
>
> Thank you for your patch. From a quick look though, you have 
> .num_modes listed twice here. I believe the second line should be 
> removed.
>
> Cheers,
> -Paul
>
> > +    .bpc = 8,
> > +    .size = {
> > +        .width = 95,
> > +        .height = 54,
> > +    },
> > +    .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> > +    .bus_flags = DRM_BUS_FLAG_DE_HIGH | 
> > DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE,
> > +    .connector_type = DRM_MODE_CONNECTOR_DPI,
> > +};
> > +
> >  static const struct drm_display_mode arm_rtsm_mode[] = {
> >      {
> >          .clock = 65000,
> > @@ -4753,6 +4794,9 @@ static const struct of_device_id 
> > platform_of_match[] = {
> >      }, {
> >          .compatible = "yes-optoelectronics,ytc700tlag-05-201c",
> >          .data = &yes_optoelectronics_ytc700tlag_05_201c,
> > +    }, {
> > +        .compatible = "qishenglong,gopher2b-lcd-panel",
> > +        .data = &qishenglong_gopher2b_lcd_panel,
> >      }, {
> >          /* Must be the last entry */
> >          .compatible = "panel-dpi",
> > --
> > 2.32.0