linux-kernel - Re: [PATCH V5 1/3] drm/panel: simple: Add Logic PD Type 28 display support

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Message-ID: <CAHCN7xK7vLufvEs1pgQoaJXO2yL4_9t12M2L67WJgTn9CWsBNQ@mail.gmail.com>
Date:   Sun, 24 Nov 2019 05:17:49 -0600
From:   Adam Ford <aford173@...il.com>
To:     Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc:     Sam Ravnborg <sam@...nborg.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V5 1/3] drm/panel: simple: Add Logic PD Type 28 display support

On Mon, Nov 11, 2019 at 7:19 AM Adam Ford <aford173@...il.com> wrote:
>
> On Fri, Nov 1, 2019 at 2:57 AM Laurent Pinchart
> <laurent.pinchart@...asonboard.com> wrote:
> >
> > On Wed, Oct 30, 2019 at 09:44:20AM -0500, Adam Ford wrote:
> > > On Wed, Oct 16, 2019 at 8:52 AM Adam Ford <aford173@...il.com> wrote:
> > > >
> > > > Previously, there was an omap panel-dpi driver that would
> > > > read generic timings from the device tree and set the display
> > > > timing accordingly.  This driver was removed so the screen
> > > > no longer functions.  This patch modifies the panel-simple
> > > > file to setup the timings to the same values previously used.
> > > >
> > > > Fixes: 8bf4b1621178 ("drm/omap: Remove panel-dpi driver")
> > >
> > > Will this be able to make it into linux-next for the 5.5 merge window?
> > > I believe Tony has picked up the device tree portion in his omap
> > > tree, but I haven't seen any notifications on this series on whether
> > > or not it's being applied.  I also don't know which tree I need to
> > > look if it's already been applied.
> > >
> > > This fixes a regression introduced a while ago where the driver I was
> > > using for the display was removed.
> >
> > Sam, would you be able to pick this up ?
>
Sam,

> Gentle nudge with the merge window approaching.

Is it too late for 5.5?  :-(

adam
>
> Thank you,
>
> adam
>
> >
> > > > Signed-off-by: Adam Ford <aford173@...il.com>
> > > > Reviewed-by: Sam Ravnborg <sam@...nborg.org>
> > > > ---
> > > > V5:  No Change
> > > > V4:  No Change
> > > > V3:  No Change
> > > > V2:  No Change
> > > >
> > > > diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> > > > index 5d487686d25c..72f69709f349 100644
> > > > --- a/drivers/gpu/drm/panel/panel-simple.c
> > > > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > > > @@ -2061,6 +2061,40 @@ static const struct drm_display_mode mitsubishi_aa070mc01_mode = {
> > > >         .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> > > >  };
> > > >
> > > > +static const struct drm_display_mode logicpd_type_28_mode = {
> > > > +       .clock = 9000,
> > > > +       .hdisplay = 480,
> > > > +       .hsync_start = 480 + 3,
> > > > +       .hsync_end = 480 + 3 + 42,
> > > > +       .htotal = 480 + 3 + 42 + 2,
> > > > +
> > > > +       .vdisplay = 272,
> > > > +       .vsync_start = 272 + 2,
> > > > +       .vsync_end = 272 + 2 + 11,
> > > > +       .vtotal = 272 + 2 + 11 + 3,
> > > > +       .vrefresh = 60,
> > > > +       .flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
> > > > +};
> > > > +
> > > > +static const struct panel_desc logicpd_type_28 = {
> > > > +       .modes = &logicpd_type_28_mode,
> > > > +       .num_modes = 1,
> > > > +       .bpc = 8,
> > > > +       .size = {
> > > > +               .width = 105,
> > > > +               .height = 67,
> > > > +       },
> > > > +       .delay = {
> > > > +               .prepare = 200,
> > > > +               .enable = 200,
> > > > +               .unprepare = 200,
> > > > +               .disable = 200,
> > > > +       },
> > > > +       .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> > > > +       .bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE |
> > > > +                    DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE,
> > > > +};
> > > > +
> > > >  static const struct panel_desc mitsubishi_aa070mc01 = {
> > > >         .modes = &mitsubishi_aa070mc01_mode,
> > > >         .num_modes = 1,
> > > > @@ -3287,6 +3321,9 @@ static const struct of_device_id platform_of_match[] = {
> > > >         }, {
> > > >                 .compatible = "lg,lp129qe",
> > > >                 .data = &lg_lp129qe,
> > > > +       }, {
> > > > +               .compatible = "logicpd,type28",
> > > > +               .data = &logicpd_type_28,
> > > >         }, {
> > > >                 .compatible = "mitsubishi,aa070mc01-ca1",
> > > >                 .data = &mitsubishi_aa070mc01,
> >
> > --
> > Regards,
> >
> > Laurent Pinchart