From patchwork Thu Jan 6 12:59:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cixi Geng X-Patchwork-Id: 12705395 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4515CC433EF for ; Thu, 6 Jan 2022 13:00:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239198AbiAFNAd (ORCPT ); Thu, 6 Jan 2022 08:00:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239261AbiAFNA3 (ORCPT ); Thu, 6 Jan 2022 08:00:29 -0500 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0EF8C061245; Thu, 6 Jan 2022 05:00:29 -0800 (PST) Received: by mail-pj1-x1034.google.com with SMTP id l10-20020a17090a384a00b001b22190e075so8394575pjf.3; Thu, 06 Jan 2022 05:00:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WV8kUdx5diPnFnndYWzeSXJ8dhJSZmG7R/fq4UIf8gc=; b=AFUc0BWmmdf55ILq0cIwsM3mo68RUS+5YbFd1/YzzKKO1o2zjWTMoV5Ur3h2BNp8AP hGXZV6lsx7KHV+aJoFwhtbZH0GqiJBOlaPCqaSVH/O3ydUteCemx9LA/js3DyadIPsJc 0GfX2Kw4q1eA4MD8zvx6CsoP57yhQAryj4fIQD0v+/+LQzBwW/GLhT93ibagw31moKI6 ulpFSVfhGU1TnDjCnWanl6lpLMJEvFFPWetmVGiTxhFlf1b+e1ZpN49P+6oLQk0YO6Kf GoEIADVkNKuSo9eAa57I84k6KWigmnlZ7FKlxdZqvauA78NkMDTVb13SWoiboOg5zhBU GlYg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=WV8kUdx5diPnFnndYWzeSXJ8dhJSZmG7R/fq4UIf8gc=; b=Hc/cUC/HiZVv/urrd+JbtZw3c0HXNSYm7ps5NL5QgDQIygNoxxB+pUaY1KKRCtHk+K uybw/1AB2dwvGuWe+Ixxx4UPPkmrxaETOlazKjO5lWP4pEcYHxiR0PFMY2yk5ZepLswN lt42XUK/lwxd25XTHeWdHXMifnzS2Yezkv8yCIK2HgAkSXVlCPDHYbgdun1nhfXPMRUm y4EETkoPjlSrT2IGTmkkBYWmi1OJV7FcGyW4J1lOPUW2GpO3p+wSWP4FKnZ7K3BWBI9w 87UFpgocFWky6R82YCG3pbyGBkgWGQmrJAoSODiocCe45Rd6VDeU5xzrn2QbwQS5QllU e6qQ== X-Gm-Message-State: AOAM531keu7Wi6LFjLTdEAZ4QDsH6sZNhhGDi0OolDuZlNbcIR/ahJ/n rwz1X3s2p3MiXdLCG+lvhAU= X-Google-Smtp-Source: ABdhPJykoC/pNxwVvTolg9KJgEIozs+gplKxENh3ahD+aMeop8S9BGX9sK8boTj19T7DXyQia5Snag== X-Received: by 2002:a17:902:d510:b0:149:3b5d:2b89 with SMTP id b16-20020a170902d51000b001493b5d2b89mr57641511plg.97.1641474029405; Thu, 06 Jan 2022 05:00:29 -0800 (PST) Received: from tj10039pcu.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id g14sm2052583pgp.76.2022.01.06.05.00.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Jan 2022 05:00:29 -0800 (PST) From: Cixi Geng To: orsonzhai@gmail.com, baolin.wang7@gmail.com, zhang.lyra@gmail.com, jic23@kernel.org, lars@metafoo.de, robh+dt@kernel.org, lgirdwood@gmail.com, broonie@kernel.org Cc: yuming.zhu1@unisoc.com, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/7] iio: adc: sc27xx: add support for PMIC sc2730 Date: Thu, 6 Jan 2022 20:59:45 +0800 Message-Id: <20220106125947.139523-6-gengcixi@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220106125947.139523-1-gengcixi@gmail.com> References: <20220106125947.139523-1-gengcixi@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Cixi Geng sc2730 is the product of sc27xx series. Signed-off-by: Yuming Zhu Signed-off-by: Cixi Geng --- drivers/iio/adc/sc27xx_adc.c | 105 +++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+) diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c index 7b5c66660ac9..195f44cf61e1 100644 --- a/drivers/iio/adc/sc27xx_adc.c +++ b/drivers/iio/adc/sc27xx_adc.c @@ -13,9 +13,11 @@ #include /* PMIC global registers definition */ +#define SC2730_MODULE_EN 0x1808 #define SC2731_MODULE_EN 0xc08 #define SC27XX_MODULE_ADC_EN BIT(5) #define SC2721_ARM_CLK_EN 0xc0c +#define SC2730_ARM_CLK_EN 0x180c #define SC2731_ARM_CLK_EN 0xc10 #define SC27XX_CLK_ADC_EN BIT(5) #define SC27XX_CLK_ADC_CLK_EN BIT(6) @@ -293,6 +295,80 @@ static int sc2721_adc_get_ratio(int channel, int scale) return SC27XX_VOLT_RATIO(1, 1); } +static int sc2730_adc_get_ratio(int channel, int scale) +{ + switch (channel) { + case 14: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(68, 900); + case 1: + return SC27XX_VOLT_RATIO(68, 1760); + case 2: + return SC27XX_VOLT_RATIO(68, 2327); + case 3: + return SC27XX_VOLT_RATIO(68, 3654); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + case 15: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(1, 3); + case 1: + return SC27XX_VOLT_RATIO(1000, 5865); + case 2: + return SC27XX_VOLT_RATIO(500, 3879); + case 3: + return SC27XX_VOLT_RATIO(500, 6090); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + case 16: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(48, 100); + case 1: + return SC27XX_VOLT_RATIO(480, 1955); + case 2: + return SC27XX_VOLT_RATIO(480, 2586); + case 3: + return SC27XX_VOLT_RATIO(48, 406); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + case 21: + case 22: + case 23: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(3, 8); + case 1: + return SC27XX_VOLT_RATIO(375, 1955); + case 2: + return SC27XX_VOLT_RATIO(375, 2586); + case 3: + return SC27XX_VOLT_RATIO(300, 3248); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + default: + switch (scale) { + case 0: + return SC27XX_VOLT_RATIO(1, 1); + case 1: + return SC27XX_VOLT_RATIO(1000, 1955); + case 2: + return SC27XX_VOLT_RATIO(1000, 2586); + case 3: + return SC27XX_VOLT_RATIO(1000, 4060); + default: + return SC27XX_VOLT_RATIO(1, 1); + } + } + return SC27XX_VOLT_RATIO(1, 1); +} + static int sc2731_adc_get_ratio(int channel, int scale) { switch (channel) { @@ -349,6 +425,22 @@ static void sc2720_adc_scale_init(struct sc27xx_adc_data *data) } } +static void sc2730_adc_scale_init(struct sc27xx_adc_data *data) +{ + int i; + + for (i = 0; i < SC27XX_ADC_CHANNEL_MAX; i++) { + if (i == 5 || i == 10 || i == 19 || i == 30 || i == 31) + data->channel_scale[i] = 3; + else if (i == 7 || i == 9) + data->channel_scale[i] = 2; + else if (i == 13) + data->channel_scale[i] = 1; + else + data->channel_scale[i] = 0; + } +} + static void sc2731_adc_scale_init(struct sc27xx_adc_data *data) { int i; @@ -695,6 +787,18 @@ static const struct sc27xx_adc_variant_data sc2731_data = { .get_ratio = sc2731_adc_get_ratio, }; +static const struct sc27xx_adc_variant_data sc2730_data = { + .pmic_type = SC27XX_ADC, + .module_en = SC2730_MODULE_EN, + .clk_en = SC2730_ARM_CLK_EN, + .scale_shift = SC27XX_ADC_SCALE_SHIFT, + .scale_mask = SC27XX_ADC_SCALE_MASK, + .bscale_cal = &big_scale_graph_calib, + .sscale_cal = &small_scale_graph_calib, + .init_scale = sc2730_adc_scale_init, + .get_ratio = sc2730_adc_get_ratio, +}; + static const struct sc27xx_adc_variant_data sc2721_data = { .pmic_type = SC2721_ADC, .module_en = SC2731_MODULE_EN, @@ -807,6 +911,7 @@ static int sc27xx_adc_probe(struct platform_device *pdev) static const struct of_device_id sc27xx_adc_of_match[] = { { .compatible = "sprd,sc2731-adc", .data = &sc2731_data}, + { .compatible = "sprd,sc2730-adc", .data = &sc2730_data}, { .compatible = "sprd,sc2721-adc", .data = &sc2721_data}, { .compatible = "sprd,sc2720-adc", .data = &sc2720_data}, { }