Re: [PATCH v2 1/5] drm/panel: Add support for the EDT ETM0700G0BDH6

Re: [PATCH v2 1/5] drm/panel: Add support for the EDT ETM0700G0BDH6

[Türk, Jan]

> Von: Rob Herring [mailto:robh@kernel.org]
> Gesendet: Freitag, 22. Dezember 2017 00:00
> Betreff: Re: [PATCH v2 1/5] drm/panel: Add support for the EDT
> ETM0700G0BDH6
> 
> On Wed, Dec 20, 2017 at 02:47:01PM +0100, jan.tuerk@emtrion.com wrote:
> > From: Jan Tuerk <jan.tuerk@emtrion.com>
> >
> > The Emerging Display Technology ETM0700G0BDH6 is exactly the same
> > display as the ETM0700G0DH6, exept the pixelclock polarity. Therefore
> > re-use the ETM0700G0DH6 modes. It is used by default on emtrion Avari
> > based development kits.
> 
> As I asked on v1, why not document the panels together in a single doc?

As denoted in the cover letter:
>The documentation for the EDT display is kept as an extra file currently,
>as it is done by the most displays in the documentation. Also a new 
>new Variant of the EDT already arrived. So merging their documentations
>should be discussed separately.

I think it will be even a little tricky to find a matching filename for both versions,
as the recent ones adding an extra character in the description. Are you expecting sth. 
like edt,etm0700series.txt?

> 
> >
> > Signed-off-by: Jan Tuerk <jan.tuerk@emtrion.com>
> > ---
> >  .../bindings/display/panel/edt,etm0700g0bdh6.txt          |  9 +++++++++
> >  drivers/gpu/drm/panel/panel-simple.c                      | 15 +++++++++++++++
> >  2 files changed, 24 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/display/panel/edt,etm0700g0bdh6.txt

Re: [PATCH v2 1/5] drm/panel: Add support for the EDT ETM0700G0BDH6

[Rob Herring]

On Fri, Dec 22, 2017 at 4:43 AM, Türk, Jan <Jan.Tuerk@emtrion.de> wrote:
>> Von: Rob Herring [mailto:robh@kernel.org]
>> Gesendet: Freitag, 22. Dezember 2017 00:00
>> Betreff: Re: [PATCH v2 1/5] drm/panel: Add support for the EDT
>> ETM0700G0BDH6
>>
>> On Wed, Dec 20, 2017 at 02:47:01PM +0100, jan.tuerk@emtrion.com wrote:
>> > From: Jan Tuerk <jan.tuerk@emtrion.com>
>> >
>> > The Emerging Display Technology ETM0700G0BDH6 is exactly the same
>> > display as the ETM0700G0DH6, exept the pixelclock polarity. Therefore
>> > re-use the ETM0700G0DH6 modes. It is used by default on emtrion Avari
>> > based development kits.
>>
>> As I asked on v1, why not document the panels together in a single doc?
>
> As denoted in the cover letter:

I generally don't read cover letters...

>>The documentation for the EDT display is kept as an extra file currently,
>>as it is done by the most displays in the documentation. Also a new
>>new Variant of the EDT already arrived. So merging their documentations
>>should be discussed separately.

You mean a 3rd variant?

> I think it will be even a little tricky to find a matching filename for both versions,
> as the recent ones adding an extra character in the description. Are you expecting sth.
> like edt,etm0700series.txt?

Yeah, or edt,etm0700g0.txt.

Rob

Re: [PATCH v2 1/5] drm/panel: Add support for the EDT ETM0700G0BDH6

[Rob Herring]

On Wed, Dec 20, 2017 at 02:47:01PM +0100, jan.tuerk@emtrion.com wrote:
> From: Jan Tuerk <jan.tuerk@emtrion.com>
> 
> The Emerging Display Technology ETM0700G0BDH6 is exactly
> the same display as the ETM0700G0DH6, exept the pixelclock
> polarity. Therefore re-use the ETM0700G0DH6 modes. It is
> used by default on emtrion Avari based development kits.

As I asked on v1, why not document the panels together in a single doc?

> 
> Signed-off-by: Jan Tuerk <jan.tuerk@emtrion.com>
> ---
>  .../bindings/display/panel/edt,etm0700g0bdh6.txt          |  9 +++++++++
>  drivers/gpu/drm/panel/panel-simple.c                      | 15 +++++++++++++++
>  2 files changed, 24 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/edt,etm0700g0bdh6.txt

[PATCH v2 1/5] drm/panel: Add support for the EDT ETM0700G0BDH6

[jan.tuerk]

From: Jan Tuerk <jan.tuerk@emtrion.com>

The Emerging Display Technology ETM0700G0BDH6 is exactly
the same display as the ETM0700G0DH6, exept the pixelclock
polarity. Therefore re-use the ETM0700G0DH6 modes. It is
used by default on emtrion Avari based development kits.

Signed-off-by: Jan Tuerk <jan.tuerk@emtrion.com>
---
 .../bindings/display/panel/edt,etm0700g0bdh6.txt          |  9 +++++++++
 drivers/gpu/drm/panel/panel-simple.c                      | 15 +++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/edt,etm0700g0bdh6.txt

diff --git a/Documentation/devicetree/bindings/display/panel/edt,etm0700g0bdh6.txt b/Documentation/devicetree/bindings/display/panel/edt,etm0700g0bdh6.txt
new file mode 100644
index 000000000000..099e30bfa17f
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/edt,etm0700g0bdh6.txt
@@ -0,0 +1,9 @@
+Emerging Display Technology Corp. ETM0700G0BDH6 7.0" WVGA TFT LCD panel
+
+Required properties:
+	compatible: "edt,etm0700g0bdh6"
+
+This panel is exactly the same as ETM0700G0DH6 except the pixelclock polarity.
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index b7c4709f7b34..42442034b53e 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -886,6 +886,18 @@ static const struct panel_desc edt_etm0700g0dh6 = {
 	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_NEGEDGE,
 };
 
+static const struct panel_desc edt_etm0700g0bdh6 = {
+	.modes = &edt_etm0700g0dh6_mode,
+	.num_modes = 1,
+	.bpc = 6,
+	.size = {
+		.width = 152,
+		.height = 91,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_POSEDGE,
+};
+
 static const struct drm_display_mode foxlink_fl500wvr00_a0t_mode = {
 	.clock = 32260,
 	.hdisplay = 800,
@@ -2029,6 +2041,9 @@ static const struct of_device_id platform_of_match[] = {
 		.compatible = "edt,etm0700g0dh6",
 		.data = &edt_etm0700g0dh6,
 	}, {
+		.compatible = "edt,etm0700g0bdh6",
+		.data = &edt_etm0700g0bdh6,
+	}, {
 		.compatible = "foxlink,fl500wvr00-a0t",
 		.data = &foxlink_fl500wvr00_a0t,
 	}, {
-- 
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