From patchwork Thu Feb 27 18:40:50 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Karlman X-Patchwork-Id: 13995021 Received: from smtp.forwardemail.net (smtp.forwardemail.net [121.127.44.59]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 07FC321ABA1 for ; Thu, 27 Feb 2025 18:52:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=121.127.44.59 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740682337; cv=none; b=j1a/YtlWRvVYEbtnA8SPsEa4BRdDRvLpO8CqYldeDySYaFZk7spmRbbhRlvOWqNc+lapKbdiqXIa0dte2OYkjJPno4KBt/n4elvMrxHMSg+wc1j7WsoQV+Qa5MwBDM9e+3uhibY0m79NbiuDEMbFGNSWbuWjTawyRSx3WUtrLgk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740682337; c=relaxed/simple; bh=9YT1d9GISltSTtz8dTBbWKTn8OXvk3sE1Jl32PtK2vw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ht4VE8D6dUUenXHpiXYx3PhjEGz4JIhOSzXlJtmLq4kn/1qwR9XZ3pfvmpsyWWQRSxd75c7q/OuaqL9sDXMCrF8p6mPRmN86HoGj6xqSjITXxzWW3mcJkLNrj0zonzYfzVYimsTF0JkYLFAhDMcEd5A31JrKrP4jBLkqlYiqELA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b=ywpjxjll; arc=none smtp.client-ip=121.127.44.59 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b="ywpjxjll" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-ID: Date: Subject: Cc: To: From; q=dns/txt; s=fe-e1b5cab7be; t=1740682334; bh=eS8EdvGPaOo7zCDoFD9uMhkn/FUO+ddnyL9qkYr6zIE=; b=ywpjxjll8cj4DqhTNj3MVwVR21+QmMNoC5xMyhMQWf9KvgkiXO10IycgR/TQW4pBxRo2oCdoz OSLABiASwnMhsmK+Kg3f071TzTBtOp1jwO0V/6+tY1Jdp2gfrA/UUsS+lev5BuaVF1St2cydIrg WlTXkQDzfgAuJVQyLku6n0jAfuhWXfXGG1Xap4JIU6tgsmKlfUar17jpyumi6ePrRLjNOyxfxCt 5Ql86TylB5DHH2h95RrD2k9onaOJaKj6Gzd8NAq7SpSwTcSjbFTCtblOOBlVOhONgfEeHDxiqaX UEdf258HBILV4s4xbo5L/gf4E+oZLX/Ms0u+Pb01MmQw== X-Forward-Email-ID: 67c0b1cebf572996e8621467 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.59 X-Forward-Email-Version: 0.4.40 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Heiko Stuebner , Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Yao Zi , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman Subject: [PATCH 1/4] dt-bindings: iio: adc: Add rockchip,rk3528-saradc variant Date: Thu, 27 Feb 2025 18:40:50 +0000 Message-ID: <20250227184058.2964204-2-jonas@kwiboo.se> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250227184058.2964204-1-jonas@kwiboo.se> References: <20250227184058.2964204-1-jonas@kwiboo.se> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The Successive Approximation ADC (SARADC) in RK3528 uses the v2 controller and support: - 10-bit resolution - Up to 1MS/s sampling rate - 4 single-ended input channels - Current consumption: 0.5mA @ 1MS/s Add a rockchip,rk3562-saradc compatible string for the 4 channels of 10-bit resolution supported by SARADC in RK3528. Signed-off-by: Jonas Karlman --- Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml index fd93ed3991e0..86eae9672c04 100644 --- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml @@ -15,6 +15,7 @@ properties: - const: rockchip,saradc - const: rockchip,rk3066-tsadc - const: rockchip,rk3399-saradc + - const: rockchip,rk3528-saradc - const: rockchip,rk3588-saradc - items: - const: rockchip,rk3576-saradc From patchwork Thu Feb 27 18:40:51 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Karlman X-Patchwork-Id: 13995020 Received: from smtp.forwardemail.net (smtp.forwardemail.net [121.127.44.59]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 080B425CC6E for ; Thu, 27 Feb 2025 18:52:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=121.127.44.59 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740682336; cv=none; b=R9GcXHfrPtLgzD1AjGPLD/1GTY/v61TqMapgAQ7Su5JJIqDS6KEp/tF+mLAb6vLS1xcOupRJPW+vwdyj0K7fdwwHoBevMWDqSCBDlyndzlJZ7IB9oTE8mukmXPedzqV2wII6EaCa61AH9IuBzu9taf+tGN/rj2GRcQK+VL6wwjE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740682336; c=relaxed/simple; bh=VrMIIw7LPPZy4RoPyOn/553vZWV0shlRFnyQkIIqvFY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=txbcFS55iJmEDN5LAkNhv6ibuFWlmIs6ibfJ0poU2F97HHga6+p9m5bcqz+Da6q2UxUeH5mL0OBC7m5G9/dcObydhaT9WgVf0bkFJfhgIVdquu8U7/GCG+ojhJ65MAJySTWNCfOiYEAsPLKWRV9AS4zLz5AyqkKz+rnDGye0x1s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b=lTXaJgDL; arc=none smtp.client-ip=121.127.44.59 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b="lTXaJgDL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-ID: Date: Subject: Cc: To: From; q=dns/txt; s=fe-e1b5cab7be; t=1740682334; bh=pMcozivu7dJDqecE4ZqBly6aZRxhwM+QCDCIXaMvZo0=; b=lTXaJgDLPUApqfZ2L8XwwIlWU2v0fPQBNO1HqV29P9awHkZdSuMfhhT+ypXAjtsUF2SC4NwIB C5S7gqo3dxirwrwO6ou2pr0oSjUEELbK5mYi87FnOVmEIhBRdcyk+LlMcY81LRIJTJK3MBAzQ/6 j6qFxBamHKpgKNCGOiUPTlyOrR/8WrmScLe/4aKNk9YO2+kb76wBCqhFQqKV7mc3hJfQE1Y8nC3 KcmzRaOmgv+xccJvOnRRO3RPQXDGWAmFgFJD6v/BraV/ub/R7kn+EYskK2+dzAKR2foGxr7Abgc oQysiwITTIVKqMJD9Rpdk287hL9LZAUkM8tdMC8RjnQA== X-Forward-Email-ID: 67c0b1d2bf572996e8621499 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.59 X-Forward-Email-Version: 0.4.40 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Heiko Stuebner , Jonathan Cameron , Lars-Peter Clausen Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yao Zi , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman Subject: [PATCH 2/4] iio: adc: rockchip_saradc: Add support for RK3528 Date: Thu, 27 Feb 2025 18:40:51 +0000 Message-ID: <20250227184058.2964204-3-jonas@kwiboo.se> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250227184058.2964204-1-jonas@kwiboo.se> References: <20250227184058.2964204-1-jonas@kwiboo.se> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The Successive Approximation ADC (SARADC) in RK3528 uses the v2 controller and support: - 10-bit resolution - Up to 1MS/s sampling rate - 4 single-ended input channels - Current consumption: 0.5mA @ 1MS/s Add support for the 4 channels of 10-bit resolution supported by SARADC in RK3528. Signed-off-by: Jonas Karlman --- drivers/iio/adc/rockchip_saradc.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c index a29e54754c8f..2619547d5d6f 100644 --- a/drivers/iio/adc/rockchip_saradc.c +++ b/drivers/iio/adc/rockchip_saradc.c @@ -275,6 +275,21 @@ static const struct rockchip_saradc_data rk3399_saradc_data = { .power_down = rockchip_saradc_power_down_v1, }; +static const struct iio_chan_spec rockchip_rk3528_saradc_iio_channels[] = { + SARADC_CHANNEL(0, "adc0", 10), + SARADC_CHANNEL(1, "adc1", 10), + SARADC_CHANNEL(2, "adc2", 10), + SARADC_CHANNEL(3, "adc3", 10), +}; + +static const struct rockchip_saradc_data rk3528_saradc_data = { + .channels = rockchip_rk3528_saradc_iio_channels, + .num_channels = ARRAY_SIZE(rockchip_rk3528_saradc_iio_channels), + .clk_rate = 1000000, + .start = rockchip_saradc_start_v2, + .read = rockchip_saradc_read_v2, +}; + static const struct iio_chan_spec rockchip_rk3568_saradc_iio_channels[] = { SARADC_CHANNEL(0, "adc0", 10), SARADC_CHANNEL(1, "adc1", 10), @@ -324,6 +339,9 @@ static const struct of_device_id rockchip_saradc_match[] = { }, { .compatible = "rockchip,rk3399-saradc", .data = &rk3399_saradc_data, + }, { + .compatible = "rockchip,rk3528-saradc", + .data = &rk3528_saradc_data, }, { .compatible = "rockchip,rk3568-saradc", .data = &rk3568_saradc_data, From patchwork Thu Feb 27 18:40:52 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Karlman X-Patchwork-Id: 13995011 Received: from smtp.forwardemail.net (smtp.forwardemail.net [121.127.44.59]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 97CE3229B2C for ; Thu, 27 Feb 2025 18:41:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=121.127.44.59 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740681690; cv=none; b=XE49dkPYU+ewqTQ3Oi9/KtA3jXYA6VXx/QJgTKa/ocpeBJ/tQfe7wAseQAXSyjibvGsf+sBs4mSBW10BP4QxHsl6xUv32RAzn4pEriO/Ff9yrHPkFRvS7kwyR4brKhij0EsMeSXVaYZLpKKfmGHKxS5u8UuysmSugtnRyDGSCZs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740681690; c=relaxed/simple; bh=5Kv7J/sWHXxwPy91WTGyz3nV2kVraScLqXgw9CRkNHo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; 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b=fJNR3S8iXkAhWfq4vOEDVTLkgc+FvVFb3Y0mhCiNEDhG61uIZ/vWW3EmSLugH/yTkWIJXFLh1 iXOiSQh+MbOJa/BylxDgEt2h1lAkNx4D/GwO2L3Cl/hZ5t4fwShPknnNDtq5uJcIZyaD5U/rtSX W0ALh5mvYeHOj9RRCv3+AVuPLxLnUaBv/KGVW5t+CmkabVr8YVGnneqBpqDkR0i3KAseOec+KFQ Rt24IVXNd8pOuKro/Ksa6E5OwAA2yE2eTM0SP3QdpMRyDfD0PlnbuHwJc0ffLeONF5uzoPiRYB+ aaSSxBKllVLzuPruOKd9Ps1aP7o+VlxgiVO5qc9GNgmA== X-Forward-Email-ID: 67c0b1d6bf572996e86214ae X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.59 X-Forward-Email-Version: 0.4.40 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Jonathan Cameron , Lars-Peter Clausen , Yao Zi , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman Subject: [PATCH 3/4] arm64: dts: rockchip: Add SARADC node for RK3528 Date: Thu, 27 Feb 2025 18:40:52 +0000 Message-ID: <20250227184058.2964204-4-jonas@kwiboo.se> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250227184058.2964204-1-jonas@kwiboo.se> References: <20250227184058.2964204-1-jonas@kwiboo.se> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a device tree node for the SARADC controller used by RK3528. Signed-off-by: Jonas Karlman --- arch/arm64/boot/dts/rockchip/rk3528.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi index 5b334690356a..0fb90f5c291c 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi @@ -7,6 +7,7 @@ #include #include #include +#include / { compatible = "rockchip,rk3528"; @@ -251,5 +252,17 @@ uart7: serial@ffa28000 { reg-shift = <2>; status = "disabled"; }; + + saradc: adc@ffae0000 { + compatible = "rockchip,rk3528-saradc"; + reg = <0x0 0xffae0000 0x0 0x10000>; + clocks = <&cru CLK_SARADC>, <&cru PCLK_SARADC>; + clock-names = "saradc", "apb_pclk"; + interrupts = ; + resets = <&cru SRST_P_SARADC>; + reset-names = "saradc-apb"; + #io-channel-cells = <1>; + status = "disabled"; + }; }; }; From patchwork Thu Feb 27 18:40:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonas Karlman X-Patchwork-Id: 13995012 Received: from smtp.forwardemail.net (smtp.forwardemail.net [121.127.44.59]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D7E9825CC6E for ; Thu, 27 Feb 2025 18:41:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=121.127.44.59 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740681695; cv=none; b=mgdlBEtFdgrZlVUmjRHU/WQlH75iMHxzyXp8cmh9ZiZtpTvPCrRvtPTEfgumMVF0Yiba9gJLQw9BUiaaPmfo3aLC2dNvU6LBVl+VaxB/Vw70iVQbLBtyjSM7RbAdCl88RhiwEgD6j/09eNG3zJ077w7h3b+fQ8yaf1w+LiayMBg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740681695; c=relaxed/simple; bh=tapKa4ENwa3OBlIjhb4jmk2jsNXPicM6WS6wpGM88bI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Kc6Gq1BEMt9Cbf7MsgPi8gSRojGUZLCIibMfP2zUpHAYd1vEQlshPX2FEvUj4M9YwL+LsWHP3B4Lwuy+gAO/Dz8QNnBdtZQ7qgW+00ojWvUn4i+UvRbxadHF0OLjtOUNPXUp9OY4X2/O9JgEaec7sInSLDN2xIVuZZwGR4it0f8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b=NBqM4qid; arc=none smtp.client-ip=121.127.44.59 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kwiboo.se Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fe-bounces.kwiboo.se Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kwiboo.se header.i=@kwiboo.se header.b="NBqM4qid" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kwiboo.se; h=Content-Transfer-Encoding: MIME-Version: References: In-Reply-To: Message-ID: Date: Subject: Cc: To: From; q=dns/txt; s=fe-e1b5cab7be; t=1740681693; bh=bnDwHn3VE/1QDoX5PmDpHlQdrc4Kek1m+Wmq70y11Yg=; b=NBqM4qidq/tKl1rLyHAw6yL8e40xXGp8JWxgtAaFpf3gbe9rTrCYfBVhcJa0+tf3u6evneI0j 13OrUozS/vBmwjEJnUUiZOmdXUOOhAVMAX3UOzFTuARsyNkRz3cKTMOlwE0wm3Pe90eblUvf3Xu jA3tpNPUcNOjvBHSFCUUVLUROp3LHszgUa+6UEBQs8wE6LhGO+bHAVnTp79xnvgoY9+fTkZeEHV /HJDs8Q+ZEhrisx4h7nZrE0Eigfe7QZ1Opkzto8b5zXGkBlJatgaK2VKVx595BHTO8Uheuk7jpm 63ju8ROa7hRGbJOInrWx9I5sMLNIxdpc6g4ecd6Jh4xA== X-Forward-Email-ID: 67c0b1dabf572996e86214e5 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.59 X-Forward-Email-Version: 0.4.40 X-Forward-Email-Website: https://forwardemail.net X-Complaints-To: abuse@forwardemail.net X-Report-Abuse: abuse@forwardemail.net X-Report-Abuse-To: abuse@forwardemail.net From: Jonas Karlman To: Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Jonathan Cameron , Lars-Peter Clausen , Yao Zi , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jonas Karlman Subject: [PATCH 4/4] arm64: dts: rockchip: Add adc-keys node to Radxa E20C Date: Thu, 27 Feb 2025 18:40:53 +0000 Message-ID: <20250227184058.2964204-5-jonas@kwiboo.se> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250227184058.2964204-1-jonas@kwiboo.se> References: <20250227184058.2964204-1-jonas@kwiboo.se> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Radxa E20C has two buttons, one SARADC maskrom button and one GPIO user button. Add support for the maskrom button using a adc-keys node, also add the regulators used by SARADC controller. Signed-off-by: Jonas Karlman --- .../boot/dts/rockchip/rk3528-radxa-e20c.dts | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts index d2cdb63d4a9d..dcc0b2584bbc 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3528-radxa-e20c.dts @@ -6,6 +6,8 @@ */ /dts-v1/; + +#include #include "rk3528.dtsi" / { @@ -15,6 +17,54 @@ / { chosen { stdout-path = "serial0:1500000n8"; }; + + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 0>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1800000>; + poll-interval = <100>; + + button-maskrom { + label = "MASKROM"; + linux,code = ; + press-threshold-microvolt = <0>; + }; + }; + + vcc_1v8: regulator-1v8-vcc { + compatible = "regulator-fixed"; + regulator-name = "vcc_1v8"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + vin-supply = <&vcc_3v3>; + }; + + vcc_3v3: regulator-3v3-vcc { + compatible = "regulator-fixed"; + regulator-name = "vcc_3v3"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vcc5v0_sys>; + }; + + vcc5v0_sys: regulator-5v0-vcc-sys { + compatible = "regulator-fixed"; + regulator-name = "vcc5v0_sys"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + }; +}; + +&saradc { + vref-supply = <&vcc_1v8>; + status = "okay"; }; &uart0 {