[PATCH v3 1/3] dt-bindings: add vendor prefix for logic technologies limited

[PATCH v3 1/3] dt-bindings: add vendor prefix for logic technologies limited

[Marcel Ziswiler]

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Add vendor prefix for Logic Technologies Limited [1] which is a Chinese
display manufacturer e.g. distributed by German Endrich Bauelemente
Vertriebs GmbH [2].

[1] https://logictechno.com/contact-us/
[2] https://www.endrich.com/isi50_isi30_tft-displays/lt170410-1whc_isi30

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>
Acked-by: Rob Herring <robh@kernel.org>

---

Changes in v3: None
Changes in v2:
- Added Philippe's reviewed-by.
- Added Rob's acked-by.

 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index f9b84f24a382..ac4804d0a991 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -549,6 +549,8 @@ patternProperties:
     description: Linear Technology Corporation
   "^logicpd,.*":
     description: Logic PD, Inc.
+  "^logictechno,.*":
+    description: Logic Technologies Limited
   "^longcheer,.*":
     description: Longcheer Technology (Shanghai) Co., Ltd.
   "^lsi,.*":
-- 
2.24.1

[PATCH v3 2/3] drm/panel: simple: add display timings for logic technologies displays

[Marcel Ziswiler]

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Add display timings for the following 3 display panels manufactured by
Logic Technologies Limited:

- LT161010-2NHC e.g. as found in the Toradex Capacitive Touch Display
  7" Parallel [1]
- LT161010-2NHR e.g. as found in the Toradex Resistive Touch Display 7"
  Parallel [2]
- LT170410-2WHC e.g. as found in the Toradex Capacitive Touch Display
  10.1" LVDS [3]

Those panels may also be distributed by Endrich Bauelemente Vertriebs
GmbH [4].

[1] https://docs.toradex.com/104497-7-inch-parallel-capacitive-touch-display-800x480-datasheet.pdf
[2] https://docs.toradex.com/104498-7-inch-parallel-resistive-touch-display-800x480.pdf
[3] https://docs.toradex.com/105952-10-1-inch-lvds-capacitive-touch-display-1280x800-datasheet.pdf
[4] https://www.endrich.com/isi50_isi30_tft-displays/lt170410-1whc_isi30

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>

---

Changes in v3:
- Fix typo in pixelclock frequency for lt170410_2whc as recently
  discovered by Philippe.

Changes in v2:
- Added Philippe's reviewed-by.

 drivers/gpu/drm/panel/panel-simple.c | 65 ++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index d6f77bc494c7..4140e0faff06 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -2107,6 +2107,62 @@ static const struct panel_desc lg_lp129qe = {
 	},
 };
 
+static const struct display_timing logictechno_lt161010_2nh_timing = {
+	.pixelclock = { 26400000, 33300000, 46800000 },
+	.hactive = { 800, 800, 800 },
+	.hfront_porch = { 16, 210, 354 },
+	.hback_porch = { 46, 46, 46 },
+	.hsync_len = { 1, 20, 40 },
+	.vactive = { 480, 480, 480 },
+	.vfront_porch = { 7, 22, 147 },
+	.vback_porch = { 23, 23, 23 },
+	.vsync_len = { 1, 10, 20 },
+	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE |
+		 DISPLAY_FLAGS_SYNC_POSEDGE,
+};
+
+static const struct panel_desc logictechno_lt161010_2nh = {
+	.timings = &logictechno_lt161010_2nh_timing,
+	.num_timings = 1,
+	.size = {
+		.width = 154,
+		.height = 86,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
+		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
+		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
+};
+
+static const struct display_timing logictechno_lt170410_2whc_timing = {
+	.pixelclock = { 68900000, 71100000, 73400000 },
+	.hactive = { 1280, 1280, 1280 },
+	.hfront_porch = { 23, 60, 71 },
+	.hback_porch = { 23, 60, 71 },
+	.hsync_len = { 15, 40, 47 },
+	.vactive = { 800, 800, 800 },
+	.vfront_porch = { 5, 7, 10 },
+	.vback_porch = { 5, 7, 10 },
+	.vsync_len = { 6, 9, 12 },
+	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
+		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE |
+		 DISPLAY_FLAGS_SYNC_POSEDGE,
+};
+
+static const struct panel_desc logictechno_lt170410_2whc = {
+	.timings = &logictechno_lt170410_2whc_timing,
+	.num_timings = 1,
+	.size = {
+		.width = 217,
+		.height = 136,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
+		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
+		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
+};
+
 static const struct drm_display_mode mitsubishi_aa070mc01_mode = {
 	.clock = 30400,
 	.hdisplay = 800,
@@ -3417,6 +3473,15 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "logicpd,type28",
 		.data = &logicpd_type_28,
+	}, {
+		.compatible = "logictechno,lt161010-2nhc",
+		.data = &logictechno_lt161010_2nh,
+	}, {
+		.compatible = "logictechno,lt161010-2nhr",
+		.data = &logictechno_lt161010_2nh,
+	}, {
+		.compatible = "logictechno,lt170410-2whc",
+		.data = &logictechno_lt170410_2whc,
 	}, {
 		.compatible = "mitsubishi,aa070mc01-ca1",
 		.data = &mitsubishi_aa070mc01,
-- 
2.24.1

[PATCH v3 3/3] dt-bindings: panel-simple: add bindings for logic technologies displays

[Marcel Ziswiler]

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Add bindings for the following 3 previously added display panels
manufactured by Logic Technologies Limited:

- LT161010-2NHC e.g. as found in the Toradex Capacitive Touch Display
7" Parallel [1]
- LT161010-2NHR e.g. as found in the Toradex Resistive Touch Display 7"
Parallel [2]
- LT170410-2WHC e.g. as found in the Toradex Capacitive Touch Display
10.1" LVDS [3]

Those panels may also be distributed by Endrich Bauelemente Vertriebs
GmbH [4].

[1] https://docs.toradex.com/104497-7-inch-parallel-capacitive-touch-display-800x480-datasheet.pdf
[2] https://docs.toradex.com/104498-7-inch-parallel-resistive-touch-display-800x480.pdf
[3] https://docs.toradex.com/105952-10-1-inch-lvds-capacitive-touch-display-1280x800-datasheet.pdf
[4] https://www.endrich.com/isi50_isi30_tft-displays/lt170410-1whc_isi30

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

---

Changes in v3:
- Add it to recently introduced panel-simple.yaml instead as suggested
  by Sam.

Changes in v2:
- New patch adding display panel bindings as well as suggested by Rob.

 .../devicetree/bindings/display/panel/panel-simple.yaml     | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
index 4a8064e31793..f33c5d979f96 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -41,6 +41,12 @@ properties:
       - frida,frd350h54004
         # GiantPlus GPM940B0 3.0" QVGA TFT LCD panel
       - giantplus,gpm940b0
+        # Logic Technologies LT161010-2NHC 7" WVGA TFT Cap Touch Module
+      - logictechno,lt161010-2nhc
+        # Logic Technologies LT161010-2NHR 7" WVGA TFT Resistive Touch Module
+      - logictechno,lt161010-2nhr
+        # Logic Technologies LT170410-2WHC 10.1" 1280x800 IPS TFT Cap Touch Mod.
+      - logictechno,lt170410-2whc
         # Satoz SAT050AT40H12R2 5.0" WVGA TFT LCD panel
       - satoz,sat050at40h12r2
         # Sharp LS020B1DD01D 2.0" HQVGA TFT LCD panel
-- 
2.24.1

Re: [PATCH v3 2/3] drm/panel: simple: add display timings for logic technologies displays

[Sam Ravnborg]

Hi Marcel.

On Sun, Jan 19, 2020 at 11:02:03PM +0100, Marcel Ziswiler wrote:
> From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
> 
> Add display timings for the following 3 display panels manufactured by
> Logic Technologies Limited:
> 
> - LT161010-2NHC e.g. as found in the Toradex Capacitive Touch Display
>   7" Parallel [1]
> - LT161010-2NHR e.g. as found in the Toradex Resistive Touch Display 7"
>   Parallel [2]
> - LT170410-2WHC e.g. as found in the Toradex Capacitive Touch Display
>   10.1" LVDS [3]
> 
> Those panels may also be distributed by Endrich Bauelemente Vertriebs
> GmbH [4].
> 
> [1] https://docs.toradex.com/104497-7-inch-parallel-capacitive-touch-display-800x480-datasheet.pdf
> [2] https://docs.toradex.com/104498-7-inch-parallel-resistive-touch-display-800x480.pdf
> [3] https://docs.toradex.com/105952-10-1-inch-lvds-capacitive-touch-display-1280x800-datasheet.pdf
> [4] https://www.endrich.com/isi50_isi30_tft-displays/lt170410-1whc_isi30
> 
> Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
> Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>
> 
> ---
> 
> Changes in v3:
> - Fix typo in pixelclock frequency for lt170410_2whc as recently
>   discovered by Philippe.
> 
> Changes in v2:
> - Added Philippe's reviewed-by.
> 
>  drivers/gpu/drm/panel/panel-simple.c | 65 ++++++++++++++++++++++++++++
>  1 file changed, 65 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
> index d6f77bc494c7..4140e0faff06 100644
> --- a/drivers/gpu/drm/panel/panel-simple.c
> +++ b/drivers/gpu/drm/panel/panel-simple.c
> @@ -2107,6 +2107,62 @@ static const struct panel_desc lg_lp129qe = {
>  	},
>  };
>  
> +static const struct display_timing logictechno_lt161010_2nh_timing = {
> +	.pixelclock = { 26400000, 33300000, 46800000 },
> +	.hactive = { 800, 800, 800 },
> +	.hfront_porch = { 16, 210, 354 },
> +	.hback_porch = { 46, 46, 46 },
> +	.hsync_len = { 1, 20, 40 },
> +	.vactive = { 480, 480, 480 },
> +	.vfront_porch = { 7, 22, 147 },
> +	.vback_porch = { 23, 23, 23 },
> +	.vsync_len = { 1, 10, 20 },
> +	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
> +		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE |
> +		 DISPLAY_FLAGS_SYNC_POSEDGE,
> +};
> +
> +static const struct panel_desc logictechno_lt161010_2nh = {
> +	.timings = &logictechno_lt161010_2nh_timing,
> +	.num_timings = 1,
> +	.size = {
> +		.width = 154,
> +		.height = 86,
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
> +	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
> +		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
> +		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
> +};
connector_type needs to be specified for all panels.
This is something we have added recently and is today mandatory
for new panel-simple panels.

Also please re-order so we add bindings before we driver support for the panels.
This makes checkpatch (and me) more happy.

Ohh, and bonus points for using display_timing and specifying min,typ,max values.

	Sam

> +
> +static const struct display_timing logictechno_lt170410_2whc_timing = {
> +	.pixelclock = { 68900000, 71100000, 73400000 },
> +	.hactive = { 1280, 1280, 1280 },
> +	.hfront_porch = { 23, 60, 71 },
> +	.hback_porch = { 23, 60, 71 },
> +	.hsync_len = { 15, 40, 47 },
> +	.vactive = { 800, 800, 800 },
> +	.vfront_porch = { 5, 7, 10 },
> +	.vback_porch = { 5, 7, 10 },
> +	.vsync_len = { 6, 9, 12 },
> +	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
> +		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE |
> +		 DISPLAY_FLAGS_SYNC_POSEDGE,
> +};
> +
> +static const struct panel_desc logictechno_lt170410_2whc = {
> +	.timings = &logictechno_lt170410_2whc_timing,
> +	.num_timings = 1,
> +	.size = {
> +		.width = 217,
> +		.height = 136,
> +	},
> +	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> +	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
> +		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
> +		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
> +};
> +
>  static const struct drm_display_mode mitsubishi_aa070mc01_mode = {
>  	.clock = 30400,
>  	.hdisplay = 800,
> @@ -3417,6 +3473,15 @@ static const struct of_device_id platform_of_match[] = {
>  	}, {
>  		.compatible = "logicpd,type28",
>  		.data = &logicpd_type_28,
> +	}, {
> +		.compatible = "logictechno,lt161010-2nhc",
> +		.data = &logictechno_lt161010_2nh,
> +	}, {
> +		.compatible = "logictechno,lt161010-2nhr",
> +		.data = &logictechno_lt161010_2nh,
> +	}, {
> +		.compatible = "logictechno,lt170410-2whc",
> +		.data = &logictechno_lt170410_2whc,
>  	}, {
>  		.compatible = "mitsubishi,aa070mc01-ca1",
>  		.data = &mitsubishi_aa070mc01,
> -- 
> 2.24.1

Re: [PATCH v3 2/3] drm/panel: simple: add display timings for logic technologies displays

[Marcel Ziswiler]

Hi Sam

On Sun, 2020-01-19 at 23:47 +0100, Sam Ravnborg wrote:
> Hi Marcel.
> 
> On Sun, Jan 19, 2020 at 11:02:03PM +0100, Marcel Ziswiler wrote:
> > From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
> > 
> > Add display timings for the following 3 display panels manufactured
> > by
> > Logic Technologies Limited:
> > 
> > - LT161010-2NHC e.g. as found in the Toradex Capacitive Touch
> > Display
> >   7" Parallel [1]
> > - LT161010-2NHR e.g. as found in the Toradex Resistive Touch
> > Display 7"
> >   Parallel [2]
> > - LT170410-2WHC e.g. as found in the Toradex Capacitive Touch
> > Display
> >   10.1" LVDS [3]
> > 
> > Those panels may also be distributed by Endrich Bauelemente
> > Vertriebs
> > GmbH [4].
> > 
> > [1] 
> > https://docs.toradex.com/104497-7-inch-parallel-capacitive-touch-display-800x480-datasheet.pdf
> > [2] 
> > https://docs.toradex.com/104498-7-inch-parallel-resistive-touch-display-800x480.pdf
> > [3] 
> > https://docs.toradex.com/105952-10-1-inch-lvds-capacitive-touch-display-1280x800-datasheet.pdf
> > [4] 
> > https://www.endrich.com/isi50_isi30_tft-displays/lt170410-1whc_isi30
> > 
> > Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
> > Reviewed-by: Philippe Schenker <philippe.schenker@toradex.com>
> > 
> > ---
> > 
> > Changes in v3:
> > - Fix typo in pixelclock frequency for lt170410_2whc as recently
> >   discovered by Philippe.
> > 
> > Changes in v2:
> > - Added Philippe's reviewed-by.
> > 
> >  drivers/gpu/drm/panel/panel-simple.c | 65
> > ++++++++++++++++++++++++++++
> >  1 file changed, 65 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/panel/panel-simple.c
> > b/drivers/gpu/drm/panel/panel-simple.c
> > index d6f77bc494c7..4140e0faff06 100644
> > --- a/drivers/gpu/drm/panel/panel-simple.c
> > +++ b/drivers/gpu/drm/panel/panel-simple.c
> > @@ -2107,6 +2107,62 @@ static const struct panel_desc lg_lp129qe =
> > {
> >  	},
> >  };
> >  
> > +static const struct display_timing logictechno_lt161010_2nh_timing
> > = {
> > +	.pixelclock = { 26400000, 33300000, 46800000 },
> > +	.hactive = { 800, 800, 800 },
> > +	.hfront_porch = { 16, 210, 354 },
> > +	.hback_porch = { 46, 46, 46 },
> > +	.hsync_len = { 1, 20, 40 },
> > +	.vactive = { 480, 480, 480 },
> > +	.vfront_porch = { 7, 22, 147 },
> > +	.vback_porch = { 23, 23, 23 },
> > +	.vsync_len = { 1, 10, 20 },
> > +	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
> > +		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE
> > |
> > +		 DISPLAY_FLAGS_SYNC_POSEDGE,
> > +};
> > +
> > +static const struct panel_desc logictechno_lt161010_2nh = {
> > +	.timings = &logictechno_lt161010_2nh_timing,
> > +	.num_timings = 1,
> > +	.size = {
> > +		.width = 154,
> > +		.height = 86,
> > +	},
> > +	.bus_format = MEDIA_BUS_FMT_RGB666_1X18,
> > +	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
> > +		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
> > +		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
> > +};
> connector_type needs to be specified for all panels.
> This is something we have added recently and is today mandatory
> for new panel-simple panels.

Sorry, forgot about that one. Will add it in v4.

> Also please re-order so we add bindings before we driver support for
> the panels.
> This makes checkpatch (and me) more happy.

Not that my checkpatch would warn me about that but kinda makes sense.

> Ohh, and bonus points for using display_timing and specifying
> min,typ,max values.

Thanks, man.

> 	Sam

Cheers

Marcel

> > +
> > +static const struct display_timing
> > logictechno_lt170410_2whc_timing = {
> > +	.pixelclock = { 68900000, 71100000, 73400000 },
> > +	.hactive = { 1280, 1280, 1280 },
> > +	.hfront_porch = { 23, 60, 71 },
> > +	.hback_porch = { 23, 60, 71 },
> > +	.hsync_len = { 15, 40, 47 },
> > +	.vactive = { 800, 800, 800 },
> > +	.vfront_porch = { 5, 7, 10 },
> > +	.vback_porch = { 5, 7, 10 },
> > +	.vsync_len = { 6, 9, 12 },
> > +	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
> > +		 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE
> > |
> > +		 DISPLAY_FLAGS_SYNC_POSEDGE,
> > +};
> > +
> > +static const struct panel_desc logictechno_lt170410_2whc = {
> > +	.timings = &logictechno_lt170410_2whc_timing,
> > +	.num_timings = 1,
> > +	.size = {
> > +		.width = 217,
> > +		.height = 136,
> > +	},
> > +	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> > +	.bus_flags = DRM_BUS_FLAG_DE_HIGH |
> > +		     DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE |
> > +		     DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE,
> > +};
> > +
> >  static const struct drm_display_mode mitsubishi_aa070mc01_mode = {
> >  	.clock = 30400,
> >  	.hdisplay = 800,
> > @@ -3417,6 +3473,15 @@ static const struct of_device_id
> > platform_of_match[] = {
> >  	}, {
> >  		.compatible = "logicpd,type28",
> >  		.data = &logicpd_type_28,
> > +	}, {
> > +		.compatible = "logictechno,lt161010-2nhc",
> > +		.data = &logictechno_lt161010_2nh,
> > +	}, {
> > +		.compatible = "logictechno,lt161010-2nhr",
> > +		.data = &logictechno_lt161010_2nh,
> > +	}, {
> > +		.compatible = "logictechno,lt170410-2whc",
> > +		.data = &logictechno_lt170410_2whc,
> >  	}, {
> >  		.compatible = "mitsubishi,aa070mc01-ca1",
> >  		.data = &mitsubishi_aa070mc01,
> > -- 
> > 2.24.1