From mboxrd@z Thu Jan 1 00:00:00 1970 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 0B22FE8181B for ; Tue, 26 Sep 2023 04:40:59 +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=RmPudLh96CKpdmLwRA7hjcLndjRG/EPyuqNCRiUhw5U=; b=3TNSfAh6myrCub 0cXOj4O0DLA8x46q2Jn51Uzu0lMUn1hn/iKk8YeLvR81mPxqFLpyZQaTrY86LMgpbJm41oS6CdITE xhP51mEUHnZwEdkZNRJ7tsus+E3+w22z3YKMH5dvKzJGGR5jYNo52bpUXtSsqumOa0EQDLGKNluN9 EISzK0qNtZbYOJ25VGD22RjpSe5ims+yqg6fItls36RIg7nrVYUQNFsD7jc3XIvwZ43FO9N+zGpLK ZIzg1Tk7LIj49RsiHDXETp/N1uPNZxOdDEN5wqMhAfKUM5g+QgFK5lQ2DKlIZR7CkhyYqsweq/w9G SfcqY67TDF9kxjMIRG+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qkzs7-00FZGp-0H; Tue, 26 Sep 2023 04:40:31 +0000 Received: from mail-oo1-xc2d.google.com ([2607:f8b0:4864:20::c2d]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qkzrs-00FZBD-2H for linux-arm-kernel@lists.infradead.org; Tue, 26 Sep 2023 04:40:18 +0000 Received: by mail-oo1-xc2d.google.com with SMTP id 006d021491bc7-57b6a7e0deeso3973195eaf.2 for ; Mon, 25 Sep 2023 21:40:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1695703214; x=1696308014; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=EQhU1RkcH7MjgUWyE/kqZPIAnN+PPGh4wt2Rdh5pkv0=; b=ezsPNhT9fHvK5KQj1KVKKxIl1uJxAx6R+27qHktMsdjNZa4JQXGyNo2YFStgpHkpzE 6jTBAeJaNqhBES/5NslJo4A5m63Ts+xKFRdYdnEipFpJYEIP4MRXFn4NIgI1wWIPl52c q2zPydl0oGR6uTkaiH5QgtnN9kIoe6Zrz4A1U= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695703214; x=1696308014; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=EQhU1RkcH7MjgUWyE/kqZPIAnN+PPGh4wt2Rdh5pkv0=; b=TknuDtD2aArLzsjN4FfAE4TICKZC1T3+E4mURUfsOL+Rk9OPu9D0WC07Maxi5l75Qf 0ZwKPiMb0GJUoNSecR+e2qcF7mxh9O7pbwVxu9WmXGNFL85tq4n4QIuTMY+nDadNziVT PTAn86fj7bkOWqQv+VpbOFIP1lmWBpAXHdQVN7TXBNnGhCy6OAHTf78ZGcUBz7TA3EpO fnVNpWsWwAuVv/3OVpAR60JBYYFWtOOtEuUq2b1uj0TtppBR68PUit/0mS8/YVezz3KP ZdVQjkhsYEAJwLV6Q/EStFz7/qO6n5Oz6BM1e1L4u9P0I8mtvsbkHRmayhMhv8QGjGYO xaUw== X-Gm-Message-State: AOJu0YyDwz4YsTVtW3Qj0Me0sltqNZ5Po81W1HmQNhnusBAXSVlL9Wpb +wMs1vpWj5LLFszgtA2z93sQ/A== X-Google-Smtp-Source: AGHT+IEWSTLXw8RQzEFqN1UX9tizE2LvrNAvvFmqQcPF3kAdf+Kqd7mBd/0Vf+yCuYgkkHfxWZqQ9g== X-Received: by 2002:a05:6870:17a7:b0:1bb:4606:5be with SMTP id r39-20020a05687017a700b001bb460605bemr11235714oae.9.1695703214656; Mon, 25 Sep 2023 21:40:14 -0700 (PDT) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:ba86:87c4:df1a:be60]) by smtp.gmail.com with ESMTPSA id p11-20020a63ab0b000000b00563590be25esm8667210pgf.29.2023.09.25.21.40.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Sep 2023 21:40:14 -0700 (PDT) From: Chen-Yu Tsai To: Mark Brown Cc: Chen-Yu Tsai , Lee Jones , Matthias Brugger , AngeloGioacchino Del Regno , Zhiyong Tao , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH RESEND v3 2/3] regulator: mt6358: Add output voltage fine tuning to fixed regulators Date: Tue, 26 Sep 2023 12:34:47 +0800 Message-ID: <20230926043450.2353320-3-wenst@chromium.org> X-Mailer: git-send-email 2.42.0.515.g380fc7ccd1-goog In-Reply-To: <20230926043450.2353320-1-wenst@chromium.org> References: <20230926043450.2353320-1-wenst@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230925_214016_765274_D7CA9D95 X-CRM114-Status: GOOD ( 14.67 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The "fixed" LDO regulators found on the MT6358 and MT6366 PMICs have either no voltage selection register, or only one valid setting. However these do have a fine voltage calibration setting that can slightly boost the output voltage from 0 mV to 100 mV, in 10 mV increments. Add support for this by changing these into linear range regulators. Some register definitions that are missing are also added. Signed-off-by: Chen-Yu Tsai Reviewed-by: AngeloGioacchino Del Regno Acked-by: Lee Jones --- drivers/regulator/mt6358-regulator.c | 15 +++++++++++++-- include/linux/mfd/mt6358/registers.h | 6 ++++++ 2 files changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c index 4ca8fbf4b3e2..f2eb0c14d1ed 100644 --- a/drivers/regulator/mt6358-regulator.c +++ b/drivers/regulator/mt6358-regulator.c @@ -123,10 +123,13 @@ struct mt6358_regulator_info { .type = REGULATOR_VOLTAGE, \ .id = MT6358_ID_##vreg, \ .owner = THIS_MODULE, \ - .n_voltages = 1, \ + .n_voltages = 11, \ + .vsel_reg = MT6358_##vreg##_ANA_CON0, \ + .vsel_mask = GENMASK(3, 0), \ .enable_reg = enreg, \ .enable_mask = BIT(enbit), \ .min_uV = volt, \ + .uV_step = 10000, \ }, \ .status_reg = MT6358_LDO_##vreg##_CON1, \ .qi = BIT(15), \ @@ -219,10 +222,13 @@ struct mt6358_regulator_info { .type = REGULATOR_VOLTAGE, \ .id = MT6366_ID_##vreg, \ .owner = THIS_MODULE, \ - .n_voltages = 1, \ + .n_voltages = 11, \ + .vsel_reg = MT6358_##vreg##_ANA_CON0, \ + .vsel_mask = GENMASK(3, 0), \ .enable_reg = enreg, \ .enable_mask = BIT(enbit), \ .min_uV = volt, \ + .uV_step = 10000, \ }, \ .status_reg = MT6358_LDO_##vreg##_CON1, \ .qi = BIT(15), \ @@ -488,8 +494,13 @@ static const struct regulator_ops mt6358_volt_table_ops = { .get_status = mt6358_get_status, }; +/* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */ static const struct regulator_ops mt6358_volt_fixed_ops = { .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .get_voltage_sel = mt6358_get_buck_voltage_sel, + .set_voltage_time_sel = regulator_set_voltage_time_sel, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, diff --git a/include/linux/mfd/mt6358/registers.h b/include/linux/mfd/mt6358/registers.h index 3d33517f178c..5ea2590be710 100644 --- a/include/linux/mfd/mt6358/registers.h +++ b/include/linux/mfd/mt6358/registers.h @@ -262,6 +262,12 @@ #define MT6358_LDO_VBIF28_CON3 0x1db0 #define MT6358_VCAMA1_ANA_CON0 0x1e08 #define MT6358_VCAMA2_ANA_CON0 0x1e0c +#define MT6358_VFE28_ANA_CON0 0x1e10 +#define MT6358_VCN28_ANA_CON0 0x1e14 +#define MT6358_VBIF28_ANA_CON0 0x1e18 +#define MT6358_VAUD28_ANA_CON0 0x1e1c +#define MT6358_VAUX18_ANA_CON0 0x1e20 +#define MT6358_VXO22_ANA_CON0 0x1e24 #define MT6358_VCN33_ANA_CON0 0x1e28 #define MT6358_VSIM1_ANA_CON0 0x1e2c #define MT6358_VSIM2_ANA_CON0 0x1e30 -- 2.42.0.515.g380fc7ccd1-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel