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: 13995137 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0E9FDC282C9 for ; Thu, 27 Feb 2025 19:43:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=iqdSW0QtadQZuD7UUzpGJ5dWcYL03fqItplzny070K4=; b=EPEMHq1OaLxfrw CY/W1IViYhmsiLCm2CmgB/wYpnZL2rQxSS1j82eyynSUpuQTn9dEjkmD2hZDKrU8ogHW/DQW7s/G2 p/8WYNcsyxnVBs7CpiH3/RFe9GWVYV7NJwbwrCf4cHfboMpZK0BFitRoszTy+m/D6Rd9och6Z7ZX3 WGS/GiPGTFGfvKSbvP2GnGuB+jHVUHT6gBEQfJorR3OCzdH8S+A5xfhxB7yJN3Zs7l2u25cnnB8Ay WZH6Gr6G/mLtpbjWadenXRseDh2tLWP2kpVaKJE1YxodEYHciuAXHA0iEDAJnjndGU5hEQxbjlgTZ 5kWIsDfUl0WYe/OOOBpw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tnjmY-00000008ddB-3aU8; Thu, 27 Feb 2025 19:42:54 +0000 Received: from smtp.forwardemail.net ([121.127.44.73]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tnioy-00000008LPi-32s1 for linux-rockchip@lists.infradead.org; Thu, 27 Feb 2025 18:41:22 +0000 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=1740681679; bh=eS8EdvGPaOo7zCDoFD9uMhkn/FUO+ddnyL9qkYr6zIE=; b=M4jYh9QPs2bi8h6AzjOE1Y16h/kSJy9kozyAplPXfLiGiau+k5NH7trUwRNfnX/bJEvqKS0Rp N8KrezfuP/cOl9rQ0NygRaYnxUxnP5XYRZ0nx6r6UP3GRCFP5H4Bjagw3ZWYX5iFRiLVBtP3jLe Dr9gEQ+AktAAFMQ8gkTh1vNB3N8G/BQIsWTrAPpFfST32rIJ1AWipszhXaycxRdaDnWSte1U7Qk 4Sh+zp8awBrCOgTgXLnkLZUrHf+hjbjcpPmio7M9pTxuwm8dyM8lBQXhC6nCIvTDHhIP8tCCiCU I56Wpr6ZorvbxqNkUDhhAsAT+cNkArKACqhCzTQIFyXw== X-Forward-Email-ID: 67c0b1cebf572996e8621467 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.73 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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_104120_862154_D806CA9B X-CRM114-Status: UNSURE ( 7.36 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org 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: 13995138 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D53E3C1B087 for ; Thu, 27 Feb 2025 19:43:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nNkLUiBwCmFRrTR36LpL0EBSGxabSnrz9MPAz5Vjbww=; b=FNzLM9CgfHialz m9fFZYOmM4uLTfsQXqvmdzob9AxPlUzSKUqGYyTrLiGWOHHjDSs6RKWHs1hgjc28+5/Z/TZtPuMZB FXPQ9FembUBSt0lHluFxT1FKeLbE0NhsBokXvwpc1gQ+879bFNkMGcQZrw1OIIUkNPrbEYdw3mTri GS3H16z7xKaTp3sf90HYH2rNvWVkglwwwuqK+R9VFmAkDR7RL/POCNYqf8/mrPlLJ1iYwTCBuhcJg iYrmfKIB2mp4eHyHCoYLuwnDDyw+6kuxQhwuuoqSfN06oF5tGTA731X4yGoZCTUNfqLF9oAiCdA5E 4frD8yqLojNuSRMi1Xfw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tnjmc-00000008dkH-1VEl; Thu, 27 Feb 2025 19:42:58 +0000 Received: from smtp.forwardemail.net ([121.127.44.73]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tnip3-00000008LQv-04im for linux-rockchip@lists.infradead.org; Thu, 27 Feb 2025 18:41:26 +0000 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=1740681684; bh=pMcozivu7dJDqecE4ZqBly6aZRxhwM+QCDCIXaMvZo0=; b=mL3qHes2Ri4oHp+X1ggh5/77nJdciqN9DFkP3rOEaxeVTh7sDZ1JEKsukUsejq94EDDpTnAXt i3IyndL6mh+Mlz3Lh35qVDKg+mGOLqepp/JMy5H3JRajtDZgdSxgSakeepCgiyHr3LFZbfXrGRL 4N9jkdaLnWd+Dm2yB38grVNrDv173DsNlXEiiZ4tILVW1ZO1ikxLGsWVp7ioJRQr9ZS57gtAzAa bmUq3+9OGk+vdV7CdgYZmMv/WHExmuo6FiH+qTpNP0Yi1aqOBuwobl6BqfFU64kKgLUcp8If6Yy ivjSFQCs74WC2qdws0nm5mK8/YKnhNzQIiqqesUTI/ug== X-Forward-Email-ID: 67c0b1d2bf572996e8621499 X-Forward-Email-Sender: rfc822; jonas@kwiboo.se, smtp.forwardemail.net, 121.127.44.73 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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_104125_151833_26DA02CE X-CRM114-Status: UNSURE ( 8.98 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org 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: 13995140 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C48F6C19F32 for ; Thu, 27 Feb 2025 19:43:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bs0/8CkYnOMaDIfMICccKOROPyS0zo75stA71OOpfUo=; 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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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_104128_709598_B5FD01C1 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org 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: 13995139 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F2D70C197BF for ; Thu, 27 Feb 2025 19:43:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=s93DVQw7mxnKm1FF8Qp0m/jdL1ibX/tkeVAq5jEabpM=; b=y2sAQewzmdNhJ6 FXwMIpcugUSwmHtDFPUGiTdATc90EhJNCp84uH28lwaI47PCFL5eiXWHa4UZWaMNncmiQf8zLLLUM XcO3I6q2EWJKHH/h/Q/xiqNsOZGzmnwjG4FuHaaufqRwpgBdqdRchaLtDIFbdMlnE33m+RMez0aKy bOX87+KiUpiU4658ANJpaUjGmvQxSj2oxJAYXt/6v8sHHziuI8iTOKbhbHAtTZ9DhOAnf3jhsRzD4 4UxoMUabrS3TmVxuwZoh4R9tgDJKi7wANRODpZPMUX01o3rnw/IV0az91392vkDMGmyO2CvESUvVf e2k10MUol/jYUpvAbihw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tnjmg-00000008dtL-1IUO; Thu, 27 Feb 2025 19:43:02 +0000 Received: from smtp.forwardemail.net ([121.127.44.59]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tnipB-00000008LTN-2wAm for linux-rockchip@lists.infradead.org; Thu, 27 Feb 2025 18:41:35 +0000 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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250227_104133_828413_7A185386 X-CRM114-Status: UNSURE ( 9.68 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org 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 {