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AJvYcCV7yIL6iAfClVqlBG+YOPacqHWLL7FYhP5d30XTEXaVpIa1uqHc9kHGwOt7eoMHugEbbc1BFDp6M1fyoc18G4ZrOTBUy5WiXlCF4SDxyvJVUwM7lR6nKbDJvJEq4KGCJOlJzoM6Aw== X-Gm-Message-State: AOJu0YwGCJNXItUc8JTGYLmGybM4ROmTshPzBaZbfI77twfVTauIAB1G q9MV7IAHNYos4Lti34a5PNG6aPb8GjYu6iFgUCefe+bBuhanr/05 X-Google-Smtp-Source: AGHT+IGEJO2C3SSIjP34dzzCCjDHbY4yJhxKBT1mGavHFwBkJoiH3hI/Qn94POcXRuJQcwhV0obvmg== X-Received: by 2002:a05:6820:1c8f:b0:5ba:6b7b:66fe with SMTP id 006d021491bc7-5ba79162559mr3582930eaf.8.1717608057663; Wed, 05 Jun 2024 10:20:57 -0700 (PDT) Received: from localhost.localdomain ([75.28.21.198]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-5ba72cb44f4sm586124eaf.40.2024.06.05.10.20.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Jun 2024 10:20:57 -0700 (PDT) From: Chris Morgan To: linux-sunxi@lists.linux.dev Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, p.zabel@pengutronix.de, sboyd@kernel.org, mturquette@baylibre.com, samuel@sholland.org, jernej.skrabec@gmail.com, wens@csie.org, conor+dt@kernel.org, krzk+dt@kernel.org, robh@kernel.org, Chris Morgan Subject: [PATCH V2 4/4] arm64: dts: allwinner: anbernic-rg35xx-h: Add ADC joysticks Date: Wed, 5 Jun 2024 12:20:49 -0500 Message-Id: <20240605172049.231108-5-macroalpha82@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240605172049.231108-1-macroalpha82@gmail.com> References: <20240605172049.231108-1-macroalpha82@gmail.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Chris Morgan Add support for the ADC joysticks found on the Anbernic RG35XX-H. The joysticks use one channel of the GPADC which is muxed 4 ways by an ADC mux. Signed-off-by: Chris Morgan --- .../sun50i-h700-anbernic-rg35xx-h.dts | 79 +++++++++++++++++++ 1 file changed, 79 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts index 63036256917f..ff453336eab1 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-h.dts @@ -9,6 +9,78 @@ / { model = "Anbernic RG35XX H"; compatible = "anbernic,rg35xx-h", "allwinner,sun50i-h700"; + + adc-joystick { + compatible = "adc-joystick"; + io-channels = <&adc_mux 0>, + <&adc_mux 1>, + <&adc_mux 2>, + <&adc_mux 3>; + pinctrl-0 = <&joy_mux_pin>; + pinctrl-names = "default"; + poll-interval = <60>; + #address-cells = <1>; + #size-cells = <0>; + + axis@0 { + reg = <0>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <4096 0>; + linux,code = ; + }; + + axis@1 { + reg = <1>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <0 4096>; + linux,code = ; + }; + + axis@2 { + reg = <2>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <0 4096>; + linux,code = ; + }; + + axis@3 { + reg = <3>; + abs-flat = <32>; + abs-fuzz = <32>; + abs-range = <4096 0>; + linux,code = ; + }; + }; + + adc_mux: adc-mux { + compatible = "io-channel-mux"; + channels = "left_x", "left_y", "right_x", "right_y"; + #io-channel-cells = <1>; + io-channels = <&gpadc 0>; + io-channel-names = "parent"; + mux-controls = <&gpio_mux>; + settle-time-us = <100>; + }; + + gpio_mux: mux-controller { + compatible = "gpio-mux"; + mux-gpios = <&pio 8 1 GPIO_ACTIVE_LOW>, + <&pio 8 2 GPIO_ACTIVE_LOW>; + #mux-control-cells = <0>; + }; +}; + +&gpadc { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + channel@0 { + reg = <0>; + }; }; &gpio_keys_gamepad { @@ -34,3 +106,10 @@ &ehci1 { &ohci1 { status = "okay"; }; + +&pio { + joy_mux_pin: joy-mux-pin { + pins = "PI0"; + function = "gpio_out"; + }; +};