2019-07-05 17:41:23

by Jeffrey Hugo

Subject: [PATCH 2/2] drm/panel: simple: Add support for Sharp LD-D5116Z01B panel

The Sharp LD-D5116Z01B is a 12.3" eDP panel with a 1920X1280 resolution.

Signed-off-by: Jeffrey Hugo <[email protected]>
---
drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 5a93c4edf1e4..e6f578667324 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -2354,6 +2354,29 @@ static const struct panel_desc samsung_ltn140at29_301 = {
},
};

+static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
+ .clock = 168480,
+ .hdisplay = 1920,
+ .hsync_start = 1920 + 48,
+ .hsync_end = 1920 + 48 + 32,
+ .htotal = 1920 + 48 + 32 + 80,
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 3,
+ .vsync_end = 1280 + 3 + 10,
+ .vtotal = 1280 + 3 + 10 + 57,
+ .vrefresh = 60,
+};
+
+static const struct panel_desc sharp_ld_d5116z01b = {
+ .modes = &sharp_ld_d5116z01b_mode,
+ .num_modes = 1,
+ .bpc = 8,
+ .size = {
+ .width = 260,
+ .height = 120,
+ },
+};
+
static const struct drm_display_mode sharp_lq035q7db03_mode = {
.clock = 5500,
.hdisplay = 240,
@@ -3002,6 +3025,9 @@ static const struct of_device_id platform_of_match[] = {
}, {
.compatible = "samsung,ltn140at29-301",
.data = &samsung_ltn140at29_301,
+ }, {
+ .compatible = "sharp,ld-d5116z01b",
+ .data = &sharp_ld_d5116z01b,
}, {
.compatible = "sharp,lq035q7db03",
.data = &sharp_lq035q7db03,
--
2.17.1

2019-07-05 17:51:08

by Sam Ravnborg

Subject: Re: [PATCH 2/2] drm/panel: simple: Add support for Sharp LD-D5116Z01B panel

Hi Jeffrey.

Patch looks good, but there is a few fields that are not initialized.
Did you forget them, or are they not needed?

On Fri, Jul 05, 2019 at 09:57:55AM -0700, Jeffrey Hugo wrote:
> The Sharp LD-D5116Z01B is a 12.3" eDP panel with a 1920X1280 resolution.
>
> Signed-off-by: Jeffrey Hugo <[email protected]>
> ---
> drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index 5a93c4edf1e4..e6f578667324 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -2354,6 +2354,29 @@ static const struct panel_desc samsung_ltn140at29_301 = {
> },
> };
>
> +static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
> + .clock = 168480,
> + .hdisplay = 1920,
> + .hsync_start = 1920 + 48,
> + .hsync_end = 1920 + 48 + 32,
> + .htotal = 1920 + 48 + 32 + 80,
> + .vdisplay = 1280,
> + .vsync_start = 1280 + 3,
> + .vsync_end = 1280 + 3 + 10,
> + .vtotal = 1280 + 3 + 10 + 57,
> + .vrefresh = 60,
> +};
No .flags? Is it not needed for an eDP panel?

> +
> +static const struct panel_desc sharp_ld_d5116z01b = {
> + .modes = &sharp_ld_d5116z01b_mode,
> + .num_modes = 1,
> + .bpc = 8,
> + .size = {
> + .width = 260,
> + .height = 120,
> + },
> +};
No .bus_format?
No .bus_flags?

Sam

2019-07-05 18:51:20

by Jeffrey Hugo

Subject: Re: [PATCH 2/2] drm/panel: simple: Add support for Sharp LD-D5116Z01B panel

On Fri, Jul 5, 2019 at 11:21 AM Sam Ravnborg <[email protected]> wrote:
>
> Hi Jeffrey.
>
> Patch looks good, but there is a few fields that are not initialized.
> Did you forget them, or are they not needed?

Thanks for the review. Overlooked some of them.

>
> On Fri, Jul 05, 2019 at 09:57:55AM -0700, Jeffrey Hugo wrote:
> > The Sharp LD-D5116Z01B is a 12.3" eDP panel with a 1920X1280 resolution.
> >
> > Signed-off-by: Jeffrey Hugo <[email protected]>
> > ---
> > drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++
> > 1 file changed, 26 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> > index 5a93c4edf1e4..e6f578667324 100644
> > --- a/drivers/gpu/drm/panel/panel-simple.c
> > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > @@ -2354,6 +2354,29 @@ static const struct panel_desc samsung_ltn140at29_301 = {
> > },
> > };
> >
> > +static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
> > + .clock = 168480,
> > + .hdisplay = 1920,
> > + .hsync_start = 1920 + 48,
> > + .hsync_end = 1920 + 48 + 32,
> > + .htotal = 1920 + 48 + 32 + 80,
> > + .vdisplay = 1280,
> > + .vsync_start = 1280 + 3,
> > + .vsync_end = 1280 + 3 + 10,
> > + .vtotal = 1280 + 3 + 10 + 57,
> > + .vrefresh = 60,
> > +};
> No .flags? Is it not needed for an eDP panel?

The flags don't appear to make sense per my understanding of eDP.
Therefore I intended .flags to be 0, which it implicitly is because
this is a static struct. Would you prefer I explicitly list .flags =
0?

>
> > +
> > +static const struct panel_desc sharp_ld_d5116z01b = {
> > + .modes = &sharp_ld_d5116z01b_mode,
> > + .num_modes = 1,
> > + .bpc = 8,
> > + .size = {
> > + .width = 260,
> > + .height = 120,
> > + },
> > +};
> No .bus_format?

Ah, yes. Looks like it should be MEDIA_BUS_FMT_RGB888_1X24
Will fix.

> No .bus_flags?

eDP is differential signaling, so what I see generally doesn't apply,
but DRM_BUS_FLAG_DATA_MSB_TO_LSB does apply, so I'll add that.

2019-07-05 18:57:10

by Sam Ravnborg

Subject: Re: [PATCH 2/2] drm/panel: simple: Add support for Sharp LD-D5116Z01B panel

Hi Jeffrey.

On Fri, Jul 05, 2019 at 12:35:30PM -0600, Jeffrey Hugo wrote:
> On Fri, Jul 5, 2019 at 11:21 AM Sam Ravnborg <[email protected]> wrote:
> >
> > Hi Jeffrey.
> >
> > Patch looks good, but there is a few fields that are not initialized.
> > Did you forget them, or are they not needed?
>
> Thanks for the review. Overlooked some of them.
>
> >
> > On Fri, Jul 05, 2019 at 09:57:55AM -0700, Jeffrey Hugo wrote:
> > > The Sharp LD-D5116Z01B is a 12.3" eDP panel with a 1920X1280 resolution.
> > >
> > > Signed-off-by: Jeffrey Hugo <[email protected]>
> > > ---
> > > drivers/gpu/drm/panel/panel-simple.c | 26 ++++++++++++++++++++++++++
> > > 1 file changed, 26 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> > > index 5a93c4edf1e4..e6f578667324 100644
> > > --- a/drivers/gpu/drm/panel/panel-simple.c
> > > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > > @@ -2354,6 +2354,29 @@ static const struct panel_desc samsung_ltn140at29_301 = {
> > > },
> > > };
> > >
> > > +static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
> > > + .clock = 168480,
> > > + .hdisplay = 1920,
> > > + .hsync_start = 1920 + 48,
> > > + .hsync_end = 1920 + 48 + 32,
> > > + .htotal = 1920 + 48 + 32 + 80,
> > > + .vdisplay = 1280,
> > > + .vsync_start = 1280 + 3,
> > > + .vsync_end = 1280 + 3 + 10,
> > > + .vtotal = 1280 + 3 + 10 + 57,
> > > + .vrefresh = 60,
> > > +};
> > No .flags? Is it not needed for an eDP panel?
>
> The flags don't appear to make sense per my understanding of eDP.
> Therefore I intended .flags to be 0, which it implicitly is because
> this is a static struct. Would you prefer I explicitly list .flags =
> 0?
I was not sure hence my Q. And do not set it to 0, as then someone will
come and say this is default and delete it.
Maybe mention it in the changelog.


>
> >
> > > +
> > > +static const struct panel_desc sharp_ld_d5116z01b = {
> > > + .modes = &sharp_ld_d5116z01b_mode,
> > > + .num_modes = 1,
> > > + .bpc = 8,
> > > + .size = {
> > > + .width = 260,
> > > + .height = 120,
> > > + },
> > > +};
> > No .bus_format?
>
> Ah, yes. Looks like it should be MEDIA_BUS_FMT_RGB888_1X24
> Will fix.
>
> > No .bus_flags?
>
> eDP is differential signaling, so what I see generally doesn't apply,
> but DRM_BUS_FLAG_DATA_MSB_TO_LSB does apply, so I'll add that.

With your changes you can add my:
Reviewed-by: Sam Ravnborg <[email protected]>

On both patches.

Sam