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From:   Heiko Stuebner <heiko@sntech.de>
To:     Akash Gajjar <Akash_Gajjar@mentor.com>
Cc:     deepak_das@mentor.com, Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Jagan Teki <jagan@amarulasolutions.com>,
        Levin Du <djw@t-chip.com.cn>,
        Ezequiel Garcia <ezequiel@collabora.com>,
        Klaus Goger <klaus.goger@theobroma-systems.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Masahiro Yamada <yamada.masahiro@socionext.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Shohei Maruyama <cheat.sc.linux@outlook.com>,
        Shawn Lin <shawn.lin@rock-chips.com>,
        Heinrich Schuchardt <xypron.glpk@gmx.de>,
        Enric Balletbo i Serra <enric.balletbo@collabora.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: rockchip: add initial dts support for Rockpro64 board
Date:   Fri, 14 Sep 2018 19:53:24 +0200
Message-ID: <5171978.eGO5IDoIUo@phil>
In-Reply-To: <1536926957-12432-1-git-send-email-Akash_Gajjar@mentor.com>
References: <Akash_Gajjar@mentor.com> <1536926957-12432-1-git-send-email-Akash_Gajjar@mentor.com>
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Hi Akash,

Am Freitag, 14. September 2018, 14:09:09 CEST schrieb Akash Gajjar:
> Rockpro64 board is a rockchip RK3399 based board from pine64.org.
> This commit adds initial device tree support for Rockpro64 board.
> 
> Signed-off-by: Akash Gajjar <Akash_Gajjar@mentor.com>

generally the patch looks great already. Hopefully we will get an Ack
from the dt-maintaintainers for the binding and I noticed two small
issues I'll describe below.


> ---
>  Documentation/devicetree/bindings/arm/rockchip.txt |   4 +
>  arch/arm64/boot/dts/rockchip/Makefile              |   1 +
>  arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts  | 770 +++++++++++++++++++++
>  3 files changed, 775 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
> 
> diff --git a/Documentation/devicetree/bindings/arm/rockchip.txt b/Documentation/devicetree/bindings/arm/rockchip.txt
> index acfd3c7..ac95183 100644
> --- a/Documentation/devicetree/bindings/arm/rockchip.txt
> +++ b/Documentation/devicetree/bindings/arm/rockchip.txt
> @@ -160,6 +160,10 @@ Rockchip platforms device tree bindings
>      Required root node properties:
>      - compatible = "pine64,rock64", "rockchip,rk3328";
>  
> +- Pine64 RockPro64 board:
> +    Required root node properties:
> +    - compatible = "pine64,rockpro64", "rockchip,rk3399";
> +
>  - Rockchip PX3 Evaluation board:
>      Required root node properties:
>        - compatible = "rockchip,px3-evb", "rockchip,px3", "rockchip,rk3188";
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index b0092d9..03d523a 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -14,5 +14,6 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-firefly.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-gru-bob.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-gru-kevin.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-puma-haikou.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-rockpro64.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
> new file mode 100644
> index 0000000..9e2d4d9
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
> @@ -0,0 +1,770 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.

Rockchip copyright from 2017? Where is the original
dts coming from?


> + */
> +
> +/dts-v1/;
> +#include <dt-bindings/input/linux-event-codes.h>
> +#include <dt-bindings/pwm/pwm.h>
> +#include "rk3399.dtsi"
> +#include "rk3399-opp.dtsi"
> +
> +/ {
> +	model = "Pine64 RockPro64";
> +	compatible = "pine64,rockpro64", "rockchip,rk3399";
> +
> +	chosen {
> +		stdout-path = "serial2:1500000n8";
> +	};
> +
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		enable-gpios = <&gpio1 RK_PB5 GPIO_ACTIVE_HIGH>;
> +		pwms = <&pwm0 0 25000 0>;
> +		brightness-levels = <
> +			  0   1   2   3   4   5   6   7
> +			  8   9  10  11  12  13  14  15
> +			 16  17  18  19  20  21  22  23
> +			 24  25  26  27  28  29  30  31
> +			 32  33  34  35  36  37  38  39
> +			 40  41  42  43  44  45  46  47
> +			 48  49  50  51  52  53  54  55
> +			 56  57  58  59  60  61  62  63
> +			 64  65  66  67  68  69  70  71
> +			 72  73  74  75  76  77  78  79
> +			 80  81  82  83  84  85  86  87
> +			 88  89  90  91  92  93  94  95
> +			 96  97  98  99 100 101 102 103
> +			104 105 106 107 108 109 110 111
> +			112 113 114 115 116 117 118 119
> +			120 121 122 123 124 125 126 127
> +			128 129 130 131 132 133 134 135
> +			136 137 138 139 140 141 142 143
> +			144 145 146 147 148 149 150 151
> +			152 153 154 155 156 157 158 159
> +			160 161 162 163 164 165 166 167
> +			168 169 170 171 172 173 174 175
> +			176 177 178 179 180 181 182 183
> +			184 185 186 187 188 189 190 191
> +			192 193 194 195 196 197 198 199
> +			200 201 202 203 204 205 206 207
> +			208 209 210 211 212 213 214 215
> +			216 217 218 219 220 221 222 223
> +			224 225 226 227 228 229 230 231
> +			232 233 234 235 236 237 238 239
> +			240 241 242 243 244 245 246 247
> +			248 249 250 251 252 253 254 255>;
> +		default-brightness-level = <200>;

with recent additions to the pwm-backlight we shouldn't need the
long brightness-levels table and default-brightness-level anymore.


Heiko