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SubjectRe: [PATCH 1/2] drm/panel: NT39016: Add support for multiple modes
On Wed, Apr 08, 2020 at 12:12:26PM +0200, Paul Cercueil wrote:
> Hi Sam,
>
>
> Le mer. 8 avril 2020 à 12:04, Sam Ravnborg <sam@ravnborg.org> a écrit :
> > Hi Paul.
> >
> > On Wed, Apr 08, 2020 at 11:58:29AM +0200, Paul Cercueil wrote:
> > > Add support for multiple drm_display_mode entries. This will allow
> > > to
> > > add a 50 Hz mode later.
> > >
> > > Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> > Patch looks good.
> >
> > Could we please use lower case in the $subject?
>
> You mean 's/Add/add/' or the panel name as well?

The panel name. We are not consistent if we start sentences in $subject
with lower or upper case - so Add and add are both fine.
But the panel name is (almost) always with lower case.

Sam
>
> -Paul
>
> > Acked-by: Sam Ravnborg <sam@ravnborg.org>
> >
> > I asume you will apply yourself.
> >
> > Sam
> >
> > > ---
> > > drivers/gpu/drm/panel/panel-novatek-nt39016.c | 33
> > > +++++++++++++------
> > > 1 file changed, 23 insertions(+), 10 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> > > b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> > > index a470810f7dbe..f1286cf6528b 100644
> > > --- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> > > +++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c
> > > @@ -49,7 +49,8 @@ enum nt39016_regs {
> > > #define NT39016_SYSTEM_STANDBY BIT(1)
> > >
> > > struct nt39016_panel_info {
> > > - struct drm_display_mode display_mode;
> > > + const struct drm_display_mode *display_modes;
> > > + unsigned int num_modes;
> > > u16 width_mm, height_mm;
> > > u32 bus_format, bus_flags;
> > > };
> > > @@ -212,15 +213,22 @@ static int nt39016_get_modes(struct drm_panel
> > > *drm_panel,
> > > struct nt39016 *panel = to_nt39016(drm_panel);
> > > const struct nt39016_panel_info *panel_info = panel->panel_info;
> > > struct drm_display_mode *mode;
> > > + unsigned int i;
> > >
> > > - mode = drm_mode_duplicate(connector->dev,
> > > &panel_info->display_mode);
> > > - if (!mode)
> > > - return -ENOMEM;
> > > + for (i = 0; i < panel_info->num_modes; i++) {
> > > + mode = drm_mode_duplicate(connector->dev,
> > > + &panel_info->display_modes[i]);
> > > + if (!mode)
> > > + return -ENOMEM;
> > > +
> > > + drm_mode_set_name(mode);
> > >
> > > - drm_mode_set_name(mode);
> > > + mode->type = DRM_MODE_TYPE_DRIVER;
> > > + if (panel_info->num_modes == 1)
> > > + mode->type |= DRM_MODE_TYPE_PREFERRED;
> > >
> > > - mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
> > > - drm_mode_probed_add(connector, mode);
> > > + drm_mode_probed_add(connector, mode);
> > > + }
> > >
> > > connector->display_info.bpc = 8;
> > > connector->display_info.width_mm = panel_info->width_mm;
> > > @@ -230,7 +238,7 @@ static int nt39016_get_modes(struct drm_panel
> > > *drm_panel,
> > > &panel_info->bus_format, 1);
> > > connector->display_info.bus_flags = panel_info->bus_flags;
> > >
> > > - return 1;
> > > + return panel_info->num_modes;
> > > }
> > >
> > > static const struct drm_panel_funcs nt39016_funcs = {
> > > @@ -316,8 +324,8 @@ static int nt39016_remove(struct spi_device
> > > *spi)
> > > return 0;
> > > }
> > >
> > > -static const struct nt39016_panel_info kd035g6_info = {
> > > - .display_mode = {
> > > +static const struct drm_display_mode kd035g6_display_modes[] = {
> > > + {
> > > .clock = 6000,
> > > .hdisplay = 320,
> > > .hsync_start = 320 + 10,
> > > @@ -330,6 +338,11 @@ static const struct nt39016_panel_info
> > > kd035g6_info = {
> > > .vrefresh = 60,
> > > .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
> > > },
> > > +};
> > > +
> > > +static const struct nt39016_panel_info kd035g6_info = {
> > > + .display_modes = kd035g6_display_modes,
> > > + .num_modes = ARRAY_SIZE(kd035g6_display_modes),
> > > .width_mm = 71,
> > > .height_mm = 53,
> > > .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
> > > --
> > > 2.25.1
>

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