linux-kernel - Re: [PATCHv7 2/3] ARM: dts: Add support for i.MX6 UltraLite DART Variscite Customboard

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Message-ID: <20200708103836.GA20983@portage>
Date:   Wed, 8 Jul 2020 12:38:36 +0200
From:   Oliver Graute <oliver.graute@...il.com>
To:     Fabio Estevam <festevam@...il.com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Marco Felsch <m.felsch@...gutronix.de>,
        Neil Armstrong <narmstrong@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCHv7 2/3] ARM: dts: Add support for i.MX6 UltraLite DART
 Variscite Customboard

On 12/11/19, Fabio Estevam wrote:
> Hi Oliver,
> 
> On Tue, Nov 12, 2019 at 4:22 PM Oliver Graute <oliver.graute@...il.com> wrote:
> 
> > +&lcdif {
> > +       pinctrl-names = "default";
> > +       pinctrl-0 = <&pinctrl_lcdif>;
> > +       display = <&display0>;
> > +       status = "okay";
> > +
> > +       display0: display0 {
> > +               bits-per-pixel = <16>;
> > +               bus-width = <24>;
> > +
> > +               display-timings {
> > +                       native-mode = <&timing0>;
> > +                       timing0: timing0 {
> > +                               clock-frequency =<35000000>;
> > +                               hactive = <800>;
> > +                               vactive = <480>;
> > +                               hfront-porch = <40>;
> > +                               hback-porch = <40>;
> > +                               hsync-len = <48>;
> > +                               vback-porch = <29>;
> > +                               vfront-porch = <13>;
> > +                               vsync-len = <3>;
> > +                               hsync-active = <0>;
> > +                               vsync-active = <0>;
> > +                               de-active = <1>;
> > +                               pixelclk-active = <0>;
> > +                       };
> > +               };
> > +       };
> > +};
> 
> You are using the deprecated bindings.
> 
> Please switch to the DRM bindings as stated at
> Documentation/devicetree/bindings/display/mxsfb.txt
> 
> You should also add your panel to the simple panel driver.


ok thx for you comments, coming back to this. I now added this to
panel-simple.c. Is this the way to go?

Best Regards,

Oliver

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index c1374be..c2f20ac 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -3139,6 +3139,29 @@ static const struct panel_desc satoz_sat050at40h12r2 = {
 	.connector_type = DRM_MODE_CONNECTOR_LVDS,
 };
 
+static const struct display_timing sgd_gktw70sdad1sd_timing = {
+	.pixelclock = {35000000, 35000000, 35000000},
+	.hactive = { 800, 800, 800},
+	.hfront_porch = {39, 39, 39},
+	.hback_porch = {39, 39, 39},
+	.hsync_len = {48, 48, 48},
+	.vactive = {480, 480, 480},
+	.vfront_porch = {13, 13, 13},
+	.vback_porch = {29, 29, 29},
+	.vsync_len = {3, 3, 3},
+};
+
+static const struct panel_desc sgd_gktw70sdad1sd = {
+	.timings = &sgd_gktw70sdad1sd_timing,
+	.num_timings = 1,
+	.bpc = 8,
+	.size = {
+		.width = 153,
+		.height = 86,
+	},
+	.connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
 static const struct drm_display_mode sharp_ld_d5116z01b_mode = {
 	.clock = 168480,
 	.hdisplay = 1920,
@@ -3999,6 +4022,9 @@ static const struct of_device_id platform_of_match[] = {
 		.compatible = "satoz,sat050at40h12r2",
 		.data = &satoz_sat050at40h12r2,
 	}, {
+		.compatible = "sgd,gktw70sdad1sd",
+		.data = &sgd_gktw70sdad1sd,
+	}, {
 		.compatible = "sharp,ld-d5116z01b",