linux-kernel - Re: [PATCH v3 RESEND] display: panel: Add AUO g070vvn01 display support (800x480)

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Date:   Tue, 29 May 2018 16:08:59 +0200
From:   Lukasz Majewski <lukma@...x.de>
To:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 RESEND] display: panel: Add AUO g070vvn01 display
 support (800x480)

Hi,

> Hi Thierry,
> 
> > This commit adds support for AUO's 7.0" display.
> >   
> 
> Thierry, shall I perform some more work on this code, or is it
> eligible for applying to your tree?

If I may put a gentle remaining on this patch.....

> 
> Best regards,
> Łukasz
> 
> > Signed-off-by: Lukasz Majewski <lukma@...x.de>
> > Reviewed-by: Rob Herring <robh@...nel.org>
> > 
> > ---
> > Changes for v3:
> > - Remove not used 'bus-format-override = "rgb565";' property
> > 
> > Changes for v2:
> > - Add *.txt suffix to the auo,g070wn01 file
> > ---
> >  .../bindings/display/panel/auo,g070vvn01.txt       | 29
> > ++++++++++++++++++++
> > drivers/gpu/drm/panel/panel-simple.c               | 31
> > ++++++++++++++++++++++ 2 files changed, 60 insertions(+) create mode
> > 100644
> > Documentation/devicetree/bindings/display/panel/auo,g070vvn01.txt
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/display/panel/auo,g070vvn01.txt
> > b/Documentation/devicetree/bindings/display/panel/auo,g070vvn01.txt
> > new file mode 100644 index 000000000000..49e4105378f6 --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/display/panel/auo,g070vvn01.txt
> > @@ -0,0 +1,29 @@ +AU Optronics Corporation 7.0" FHD (800 x 480) TFT
> > LCD panel +
> > +Required properties:
> > +- compatible: should be "auo,g070vvn01"
> > +- backlight: phandle of the backlight device attached to the panel
> > +- power-supply: single regulator to provide the supply voltage
> > +
> > +Required nodes:
> > +- port: Parallel port mapping to connect this display
> > +
> > +This panel needs single power supply voltage. Its backlight is
> > conntrolled +via PWM signal.
> > +
> > +Example:
> > +--------
> > +
> > +Example device-tree definition when connected to iMX6Q based board
> > +
> > +	lcd_panel: lcd-panel {
> > +		compatible = "auo,g070vvn01";
> > +		backlight = <&backlight_lcd>;
> > +		power-supply = <&reg_display>;
> > +
> > +		port {
> > +			lcd_panel_in: endpoint {
> > +				remote-endpoint =
> > <&lcd_display_out>;
> > +			};
> > +		};
> > +	};
> > diff --git a/drivers/gpu/drm/panel/panel-simple.c
> > b/drivers/gpu/drm/panel/panel-simple.c index
> > cbf1ab404ee7..d9984bdb5bb5 100644 ---
> > a/drivers/gpu/drm/panel/panel-simple.c +++
> > b/drivers/gpu/drm/panel/panel-simple.c @@ -581,6 +581,34 @@ static
> > const struct panel_desc auo_b133htn01 = { },
> >  };
> >  
> > +static const struct display_timing auo_g070vvn01_timings = {
> > +	.pixelclock = { 33300000, 34209000, 45000000 },
> > +	.hactive = { 800, 800, 800 },
> > +	.hfront_porch = { 20, 40, 200 },
> > +	.hback_porch = { 87, 40, 1 },
> > +	.hsync_len = { 1, 48, 87 },
> > +	.vactive = { 480, 480, 480 },
> > +	.vfront_porch = { 5, 13, 200 },
> > +	.vback_porch = { 31, 31, 29 },
> > +	.vsync_len = { 1, 1, 3 },
> > +};
> > +
> > +static const struct panel_desc auo_g070vvn01 = {
> > +	.timings = &auo_g070vvn01_timings,
> > +	.num_timings = 1,
> > +	.bpc = 8,
> > +	.size = {
> > +		.width = 152,
> > +		.height = 91,
> > +	},
> > +	.delay = {
> > +		.prepare = 200,
> > +		.enable = 50,
> > +		.disable = 50,
> > +		.unprepare = 1000,
> > +	},
> > +};
> > +
> >  static const struct drm_display_mode auo_g104sn02_mode = {
> >  	.clock = 40000,
> >  	.hdisplay = 800,
> > @@ -2095,6 +2123,9 @@ static const struct of_device_id
> > platform_of_match[] = { .compatible = "auo,b133xtn01",
> >  		.data = &auo_b133xtn01,
> >  	}, {
> > +		.compatible = "auo,g070vvn01",
> > +		.data = &auo_g070vvn01,
> > +	}, {
> >  		.compatible = "auo,g104sn02",
> >  		.data = &auo_g104sn02,
> >  	}, {  
> 
> 
> 
> 
> Best regards,
> 
> Lukasz Majewski
> 
> --
> 
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...x.de


Best regards,

Lukasz Majewski

--

DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@...x.de

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