[PATCH 1/2] drm/panel: Add support for Samsung LTN101NT05 panel

[PATCH 1/2] drm/panel: Add support for Samsung LTN101NT05 panel

[Marc Dietrich]

The Samsung LNT101NT05 10.1" WXVGA panel can be supported by the simple panel
driver.

Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
---
This isn't strickly required to get the panel up, but Thierry suggested on IRC to
include it anyway, in case someone else has some use for it.

 .../bindings/panel/samsung,ltn101nt05.txt          |    7 +++++
 drivers/gpu/drm/panel/panel-simple.c               |   27 +++++++++++++++++++-
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/panel/samsung,ltn101nt05.txt

diff --git a/Documentation/devicetree/bindings/panel/samsung,ltn101nt05.txt b/Documentation/devicetree/bindings/panel/samsung,ltn101nt05.txt
new file mode 100644
index 0000000..ef522c6
--- /dev/null
+++ b/Documentation/devicetree/bindings/panel/samsung,ltn101nt05.txt
@@ -0,0 +1,7 @@
+Samsung Electronics 10.1" WSVGA TFT LCD panel
+
+Required properties:
+- compatible: should be "samsung,ltn101nt05"
+
+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 3e611af..7f9ddb5 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -338,6 +338,28 @@ static const struct panel_desc chunghwa_claa101wb01 = {
 	},
 };
 
+static const struct drm_display_mode samsung_ltn101nt05_mode = {
+	.clock = 54030,
+	.hdisplay = 1024,
+	.hsync_start = 1024 + 24,
+	.hsync_end = 1024 + 24 + 136,
+	.htotal = 1024 + 24 + 136 + 160,
+	.vdisplay = 600,
+	.vsync_start = 600 + 3,
+	.vsync_end = 600 + 3 + 6,
+	.vtotal = 600 + 3 + 6 + 61,
+	.vrefresh = 60,
+};
+
+static const struct panel_desc samsung_ltn101nt05 = {
+	.modes = &samsung_ltn101nt05_mode,
+	.num_modes = 1,
+	.size = {
+		.width = 1024,
+		.height = 600,
+	},
+};
+
 static const struct of_device_id platform_of_match[] = {
 	{
 		.compatible = "auo,b101aw03",
@@ -346,6 +368,9 @@ static const struct of_device_id platform_of_match[] = {
 		.compatible = "chunghwa,claa101wb01",
 		.data = &chunghwa_claa101wb01
 	}, {
+		.compatible = "samsung,ltn101nt05",
+		.data = &samsung_ltn101nt05,
+	}, {
 		.compatible = "simple-panel",
 	}, {
 		/* sentinel */
-- 
1.7.9.5

Re: [PATCH 1/2] drm/panel: Add support for Samsung LTN101NT05 panel

[Stephen Warren]

On 12/21/2013 01:40 PM, Marc Dietrich wrote:
> The Samsung LNT101NT05 10.1" WXVGA panel can be supported by the simple panel
> driver.

Thierry, I assume you'll take patch 1/2 throught the appropriate DRM tree.

Re: [PATCH 1/2] drm/panel: Add support for Samsung LTN101NT05 panel

[Thierry Reding]

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On Mon, Jan 06, 2014 at 12:22:41PM -0700, Stephen Warren wrote:
> On 12/21/2013 01:40 PM, Marc Dietrich wrote:
> > The Samsung LNT101NT05 10.1" WXVGA panel can be supported by the simple panel
> > driver.
> 
> Thierry, I assume you'll take patch 1/2 throught the appropriate DRM tree.

Yes, will do.

Thierry

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Re: [PATCH 1/2] drm/panel: Add support for Samsung LTN101NT05 panel

[Thierry Reding]

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On Sat, Dec 21, 2013 at 09:38:12PM +0100, Marc Dietrich wrote:
> The Samsung LNT101NT05 10.1" WXVGA panel can be supported by the simple panel
> driver.
> 
> Cc: linux-fbdev@vger.kernel.org
> Cc: dri-devel@lists.freedesktop.org
> Cc: David Airlie <airlied@linux.ie>
> Signed-off-by: Marc Dietrich <marvin24@gmx.de>
> ---
> This isn't strickly required to get the panel up, but Thierry suggested on IRC to
> include it anyway, in case someone else has some use for it.

For the record: the reason this isn't strictly needed is because there's
an EDID that can be probed to get the video timings. But the panel still
can be supported using the timings from the datasheet. One example where
this would be useful is when the EDID isn't connected or simply broken.

That said: applied, thanks!

Thierry

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