linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Andre Przywara <andre.przywara@arm.com>
To: Jagan Teki <jagan@amarulasolutions.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>, Icenowy Zheng <icenowy@aosc.io>,
	Jernej Skrabec <jernej.skrabec@siol.net>,
	Vasily Khoruzhick <anarsoul@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	David Airlie <airlied@linux.ie>,
	dri-devel@lists.freedesktop.org,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	linux-clk@vger.kernel.org,
	Michael Trimarchi <michael@amarulasolutions.com>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com,
	linux-amarula@amarulasolutions.com
Subject: Re: [PATCH v4 26/26] arm64: dts: allwinner: a64-amarula-relic: Enable Techstar TS8550B MIPI-DSI panel
Date: Tue, 13 Nov 2018 12:32:41 +0000	[thread overview]
Message-ID: <20181113123241.7d0960b4@donnerap.cambridge.arm.com> (raw)
In-Reply-To: <20181113111633.20189-27-jagan@amarulasolutions.com>

On Tue, 13 Nov 2018 16:46:33 +0530
Jagan Teki <jagan@amarulasolutions.com> wrote:

Hi,

I couldn't find a schematic for this board, but some things in here
look inconsistent:

> Amarula A64-Relic board by default bound with Techstar TS8550B
> MIPI-DSI panel, add support for it.
> 
> DSI panel connected via board DSI port with,
> - DC1SW as AVDD supply
> - DCDC2 as DVDD supply

Are you sure of that? That's typically the CPU power supply. Also I
can't find it below. Should that read DLDO2 instead?

> - DCDC1 as VCC-DSI supply

Can't find this below, either. Is it DLDO1?

> - PD24 gpio for reset pin
> - PD23 gpio for backlight enable pin
> 
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> ---
>  .../allwinner/sun50i-a64-amarula-relic.dts    | 46
> +++++++++++++++++++ 1 file changed, 46 insertions(+)
> 
> diff --git
> a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
> b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts index
> 6cb2b7f0c817..ecc0d8094815 100644 ---
> a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts +++
> b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts @@ -9,6
> +9,7 @@ #include "sun50i-a64.dtsi" 
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pwm/pwm.h>
>  
>  / {
>  	model = "Amarula A64-Relic";
> @@ -18,6 +19,14 @@
>  		serial0 = &uart0;
>  	};
>  
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
> +		brightness-levels = <1 2 4 8 16 32 64 128 512>;
> +		default-brightness-level = <2>;
> +		enable-gpios = <&pio 3 23 GPIO_ACTIVE_HIGH>; /*
> LCD-BL-EN: PD23 */
> +	};
> +
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> @@ -30,6 +39,28 @@
>  	};
>  };
>  
> +&de {
> +	status = "okay";
> +};
> +
> +&dphy {
> +	status = "okay";
> +};
> +
> +&dsi {
> +	vcc-dsi-supply = <&reg_dldo1>;

Ah, there we have the SoC DSI power supply I was missing for the
BPi-M64 patch.
But is it DLDO1 or DCDC1, like you wrote above?

> +	status = "okay";
> +
> +	panel@0 {
> +		compatible = "techstar,ts8550b";
> +		reg = <0>;
> +		avdd-supply = <&reg_dc1sw>;
> +		dvdd-supply = <&reg_dldo2>;
> +		reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /*
> LCD-RST: PD24 */
> +		backlight = <&backlight>;
> +	};
> +};
> +
>  &ehci0 {
>  	status = "okay";
>  };
> @@ -72,6 +103,12 @@
>  	status = "okay";
>  };
>  
> +&pwm {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pwm_pin>;
> +	status = "okay";
> +};
> +
>  &r_rsb {
>  	status = "okay";
>  
> @@ -107,6 +144,15 @@
>  	regulator-name = "vcc-pll-avcc";
>  };
>  
> +&reg_dc1sw {
> +	/*
> +	 * This regulator also indirectly drives the PD pingroup
> GPIOs,
> +	 * which also controls the power LED.
> +	 */

Is that true for this board as well or is this just a copy&paste
leftover from the BananaPi-M64? If not, you should loose the
regulator-always-on property.

> +	regulator-always-on;
> +	regulator-name = "vcc-phy";

Shouldn't this be called "vcc-dsi" or so?

Cheers,
Andre.

> +};
> +
>  &reg_dcdc1 {
>  	regulator-always-on;
>  	regulator-min-microvolt = <3300000>;


      reply	other threads:[~2018-11-13 12:32 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-13 11:16 [PATCH v4 00/26] drm/sun4i: Allwinner A64 MIPI-DSI support Jagan Teki
2018-11-13 11:16 ` [PATCH v4 01/26] clk: sunxi-ng: a64: Fix gate bit of DSI DPHY Jagan Teki
2018-11-13 13:08   ` Maxime Ripard
2018-11-13 11:16 ` [PATCH v4 02/26] clk: sunxi-ng: Add check for minimal rate to NKM PLLs Jagan Teki
2018-11-13 11:16 ` [PATCH v4 03/26] clk: sunxi-ng: Add check for maximum " Jagan Teki
2018-11-13 13:26   ` Maxime Ripard
2018-11-15 15:21     ` Jagan Teki
2018-11-20 10:55       ` Maxime Ripard
2018-11-20 12:07         ` Jagan Teki
2018-11-13 11:16 ` [PATCH v4 04/26] drm/sun4i: sun6i_mipi_dsi: Add has_mod_clk quirk Jagan Teki
2018-11-13 11:16 ` [PATCH v4 05/26] drm/sun4i: sun6i_mipi_dsi: Add Allwinner A64 MIPI DSI support Jagan Teki
2018-11-13 11:16 ` [PATCH v4 06/26] dt-bindings: sun6i-dsi: Add compatible for A64 MIPI DSI Jagan Teki
2018-11-13 11:16 ` [PATCH v4 07/26] drm/sun4i: sun6i_mipi_dsi: Add DSI Generic short write 2 param transfer Jagan Teki
2018-11-13 11:16 ` [PATCH v4 08/26] drm/sun4i: sun6i_mipi_dsi: Fix VBP size calculation Jagan Teki
2018-11-15  9:55   ` Maxime Ripard
2018-11-15 17:49     ` Jagan Teki
2018-11-20 15:57       ` Maxime Ripard
2018-11-20 16:25         ` Jagan Teki
2018-11-26 12:07           ` [linux-sunxi] " Jagan Teki
2018-11-27 10:25             ` Maxime Ripard
2018-11-27 10:24           ` Maxime Ripard
2018-11-27 11:04             ` [linux-sunxi] " Jagan Teki
2018-12-07 13:21               ` Maxime Ripard
2018-12-10 16:07                 ` Jagan Teki
2018-11-13 11:16 ` [PATCH v4 09/26] drm/sun4i: sun6i_mipi_dsi: Fix TCON DRQ set bits Jagan Teki
2018-11-13 11:16 ` [PATCH v4 10/26] drm/sun4i: sun6i_mipi_dsi: Refactor vertical video start delay Jagan Teki
2018-11-13 11:16 ` [PATCH v4 11/26] drm/sun4i: sun6i_mipi_dsi: Fix DSI hbp timing value Jagan Teki
2018-11-13 11:16 ` [PATCH v4 12/26] drm/sun4i: sun6i_mipi_dsi: Fix DSI hblk timing calculation Jagan Teki
2018-11-13 11:16 ` [PATCH v4 13/26] drm/sun4i: sun6i_mipi_dsi: Add DSI hblk packet overhead Jagan Teki
2018-11-13 11:16 ` [PATCH v4 14/26] drm/sun4i: sun6i_mipi_dsi: Fix DSI hfp timing value Jagan Teki
2018-11-13 11:16 ` [PATCH v4 15/26] drm/sun4i: sun6i_mipi_dsi: Set proper vblk timing calculation Jagan Teki
2018-11-13 11:16 ` [PATCH v4 16/26] drm/sun4i: sun6i_mipi_dsi: Add support for VCC-DSI voltage regulator Jagan Teki
2018-11-13 11:16 ` [PATCH v4 17/26] dt-bindings: sun6i-dsi: Add VCC-DSI supply property Jagan Teki
2018-11-16 23:19   ` Rob Herring
2018-11-13 11:16 ` [PATCH v4 18/26] dt-bindings: panel: Add Bananapi S070WV20-CT16 ICN6211 MIPI-DSI to RGB bridge Jagan Teki
2018-11-13 11:16 ` [PATCH v4 19/26] drm/panel: " Jagan Teki
2018-11-13 11:16 ` [PATCH v4 20/26] dt-bindings: panel: Add Techstar TS8550B MIPI-DSI panel Jagan Teki
2018-11-13 11:16 ` [PATCH v4 21/26] drm/panel: Add Techstar TS8550B MIPI-DSI LCD panel Jagan Teki
2018-11-13 11:16 ` [PATCH v4 22/26] clk: sunxi-ng: a64: Add min and max rate for PLL_MIPI Jagan Teki
2018-11-13 11:16 ` [PATCH v4 23/26] dt-bindings: sun6i-dsi: Add compatible for A64 DPHY Jagan Teki
2018-11-13 11:16 ` [PATCH v4 24/26] arm64: dts: allwinner: a64: Add DSI pipeline Jagan Teki
2018-11-13 11:16 ` [PATCH v4 25/26] [DO NOT MERGE] arm64: dts: allwinner: bananapi-m64: Bananapi S070WV20-CT16 DSI panel Jagan Teki
2018-11-13 12:22   ` Andre Przywara
2018-11-14  6:31     ` Jagan Teki
2018-11-14  6:58       ` Chen-Yu Tsai
2018-11-14  9:22         ` Chen-Yu Tsai
2018-11-14 11:18           ` Jagan Teki
2018-11-13 11:16 ` [PATCH v4 26/26] arm64: dts: allwinner: a64-amarula-relic: Enable Techstar TS8550B MIPI-DSI panel Jagan Teki
2018-11-13 12:32   ` Andre Przywara [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20181113123241.7d0960b4@donnerap.cambridge.arm.com \
    --to=andre.przywara@arm.com \
    --cc=airlied@linux.ie \
    --cc=anarsoul@gmail.com \
    --cc=catalin.marinas@arm.com \
    --cc=devicetree@vger.kernel.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=icenowy@aosc.io \
    --cc=jagan@amarulasolutions.com \
    --cc=jernej.skrabec@siol.net \
    --cc=linux-amarula@amarulasolutions.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-clk@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-sunxi@googlegroups.com \
    --cc=mark.rutland@arm.com \
    --cc=maxime.ripard@bootlin.com \
    --cc=michael@amarulasolutions.com \
    --cc=mturquette@baylibre.com \
    --cc=robh+dt@kernel.org \
    --cc=sboyd@kernel.org \
    --cc=wens@csie.org \
    --cc=will.deacon@arm.com \
    --subject='Re: [PATCH v4 26/26] arm64: dts: allwinner: a64-amarula-relic: Enable Techstar TS8550B MIPI-DSI panel' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).