From patchwork Sun Jul 31 22:37:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Iskren Chernev X-Patchwork-Id: 594754 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 F1D87C19F2B for ; Sun, 31 Jul 2022 22:38:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238633AbiGaWiL (ORCPT ); Sun, 31 Jul 2022 18:38:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237850AbiGaWiB (ORCPT ); Sun, 31 Jul 2022 18:38:01 -0400 Received: from mail-ed1-x532.google.com (mail-ed1-x532.google.com [IPv6:2a00:1450:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13D981276F; Sun, 31 Jul 2022 15:37:58 -0700 (PDT) Received: by mail-ed1-x532.google.com with SMTP id i13so11661054edj.11; Sun, 31 Jul 2022 15:37:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=LKS/8KCue6hf55IV+P/jbsbqpeYuq4QmzH0IPw9Ppbg=; b=BngCKTw/3QGKGVGEcD4yRJ02Pdn/Mm0pTZ3kT/GPlOIiMbpsuBHgBXJPanDU5SUIxb Nz8JFkM+QumQunY4v1scApzyyFZbO52Ry9kyaLmnvAPTNBXIm+2ebU7zty8JyV2ll5yi H60t3npUKnNhIUAxGejvf16oKVUbqHN4sjgUwwdrysZ3WUTSSCpZGZ8o7jJzQj5ctRJU 8pzGpILk9w6HsCZFX1x2ADwsnW09XPbrJOyNLGcybHZEiJVW48xLlIGSKpRkJW8qAR/d 6OkWW5mjqLvbwoZmD5BseUlm5p7ue2InoLCo9t8SNq83GvQjCPg8f9ORsi0FDrJDvWCp Pmog== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=LKS/8KCue6hf55IV+P/jbsbqpeYuq4QmzH0IPw9Ppbg=; b=lEYJbn3giIJlfJrSghjtG6l5aKbk+cMsSJY7CZnK3G9HhIT9wra3tOallQcgzyuSsz s2C7WxfIs3kZSMcI6fq+Mgem4BfzmoTGVFyulXS/HKND1Vgi3Exwo5naqBI2TM+Z/KTk TWF/EswJlbUKfZM0Vlp1TEkekRs+ogr26PTX3qeAOcpCn2fluJjYiVue41cJi+4Gjc8q cxq2vdKA4uGFzXDbXnEbrr3TYG2UwKWUP8DMmXIpUsoMUwTCbQXEJhte/LiOCPEXP23I Qq7gKPr/c4t12W4OMGUgQf88zrua/zFODwdv8mlJb0/hWKz+Kq414qRAwnYbo/xdC2l6 vJug== X-Gm-Message-State: AJIora+olGm7c0Vy5X4gr0RefPcrD+1JYFCVxTMsJ6BlCEp5jU2hEv9t 4kyywdnWVd4juJQ2cwijzig= X-Google-Smtp-Source: AGRyM1s58iY1iAv8yynB6pGV3es2ztpitAJdm9hp6fU8MD8+O6gR6omAs4jiAyaO4yci0qDZXmDcIg== X-Received: by 2002:a05:6402:1d51:b0:41f:cf6c:35a5 with SMTP id dz17-20020a0564021d5100b0041fcf6c35a5mr13327156edb.25.1659307076527; Sun, 31 Jul 2022 15:37:56 -0700 (PDT) Received: from localhost ([77.78.38.236]) by smtp.gmail.com with ESMTPSA id r9-20020a17090609c900b0072f5fa11d19sm4480210eje.202.2022.07.31.15.37.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 31 Jul 2022 15:37:55 -0700 (PDT) From: Iskren Chernev To: Bjorn Andersson , Krzysztof Kozlowski , Mark Brown Cc: Andy Gross , Konrad Dybcio , Liam Girdwood , Rob Herring , Robert Marko , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Iskren Chernev , Adam Skladowski Subject: [PATCH v3 05/13] regulator: qcom_spmi: Add support for new regulator types Date: Mon, 1 Aug 2022 01:37:28 +0300 Message-Id: <20220731223736.1036286-6-iskren.chernev@gmail.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220731223736.1036286-1-iskren.chernev@gmail.com> References: <20220731223736.1036286-1-iskren.chernev@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add support for some regulator types that are missing in this driver, all belonging to the FTSMPS426 register layout. This is done in preparation for adding support for the PM6125 PMIC. Although these regulators conform to ftsmps426 (common 2) layout, their modes are slightly offset (BYPASS, RETENTION and LPM values are one lower). Also, slew rate for the FTS regulator is computed in a simpler way. The inspiration for the magic constants was taken from [1] [1]: https://source.codeaurora.org/quic/la/kernel/msm-5.4/commit/?h=kernel.lnx.5.4.r1-rel&id=d1220daeffaa440ffff0a8c47322eb0033bf54f5 Signed-off-by: Adam Skladowski Signed-off-by: Iskren Chernev --- drivers/regulator/qcom_spmi-regulator.c | 138 ++++++++++++++++++++++++ 1 file changed, 138 insertions(+) diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c index a2d0292a92fd..50c8ee01e0ad 100644 --- a/drivers/regulator/qcom_spmi-regulator.c +++ b/drivers/regulator/qcom_spmi-regulator.c @@ -99,6 +99,8 @@ enum spmi_regulator_logical_type { SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO, SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426, SPMI_REGULATOR_LOGICAL_TYPE_HFS430, + SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS3, + SPMI_REGULATOR_LOGICAL_TYPE_LDO_510, }; enum spmi_regulator_type { @@ -166,6 +168,16 @@ enum spmi_regulator_subtype { SPMI_REGULATOR_SUBTYPE_HFS430 = 0x0a, SPMI_REGULATOR_SUBTYPE_HT_P150 = 0x35, SPMI_REGULATOR_SUBTYPE_HT_P600 = 0x3d, + SPMI_REGULATOR_SUBTYPE_FTSMPS_510 = 0x0b, + SPMI_REGULATOR_SUBTYPE_LV_P150_510 = 0x71, + SPMI_REGULATOR_SUBTYPE_LV_P300_510 = 0x72, + SPMI_REGULATOR_SUBTYPE_LV_P600_510 = 0x73, + SPMI_REGULATOR_SUBTYPE_N300_510 = 0x6a, + SPMI_REGULATOR_SUBTYPE_N600_510 = 0x6b, + SPMI_REGULATOR_SUBTYPE_N1200_510 = 0x6c, + SPMI_REGULATOR_SUBTYPE_MV_P50_510 = 0x7a, + SPMI_REGULATOR_SUBTYPE_MV_P150_510 = 0x7b, + SPMI_REGULATOR_SUBTYPE_MV_P600_510 = 0x7d, }; enum spmi_common_regulator_registers { @@ -193,6 +205,14 @@ enum spmi_ftsmps426_regulator_registers { SPMI_FTSMPS426_REG_VOLTAGE_ULS_MSB = 0x69, }; +/* + * Third common register layout + */ +enum spmi_ftsmps3_regulator_registers { + SPMI_FTSMPS3_REG_STEP_CTRL = 0x3c, +}; + + enum spmi_vs_registers { SPMI_VS_REG_OCP = 0x4a, SPMI_VS_REG_SOFT_START = 0x4c, @@ -260,6 +280,15 @@ enum spmi_common_control_register_index { #define SPMI_FTSMPS426_MODE_MASK 0x07 +/* Third common regulator mode register values */ +#define SPMI_FTSMPS3_MODE_BYPASS_MASK 2 +#define SPMI_FTSMPS3_MODE_RETENTION_MASK 3 +#define SPMI_FTSMPS3_MODE_LPM_MASK 4 +#define SPMI_FTSMPS3_MODE_AUTO_MASK 6 +#define SPMI_FTSMPS3_MODE_HPM_MASK 7 + +#define SPMI_FTSMPS3_MODE_MASK 0x07 + /* Common regulator pull down control register layout */ #define SPMI_COMMON_PULL_DOWN_ENABLE_MASK 0x80 @@ -305,6 +334,9 @@ enum spmi_common_control_register_index { #define SPMI_FTSMPS_STEP_MARGIN_NUM 4 #define SPMI_FTSMPS_STEP_MARGIN_DEN 5 +/* slew_rate has units of uV/us. */ +#define SPMI_FTSMPS3_SLEW_RATE_38p4 38400 + #define SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK 0x03 #define SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT 0 @@ -554,6 +586,14 @@ static struct spmi_voltage_range ht_p600_ranges[] = { SPMI_VOLTAGE_RANGE(0, 1704000, 1704000, 1896000, 1896000, 8000), }; +static struct spmi_voltage_range nldo_510_ranges[] = { + SPMI_VOLTAGE_RANGE(0, 320000, 320000, 1304000, 1304000, 8000), +}; + +static struct spmi_voltage_range ftsmps510_ranges[] = { + SPMI_VOLTAGE_RANGE(0, 300000, 300000, 1372000, 1372000, 4000), +}; + static DEFINE_SPMI_SET_POINTS(pldo); static DEFINE_SPMI_SET_POINTS(nldo1); static DEFINE_SPMI_SET_POINTS(nldo2); @@ -576,6 +616,8 @@ static DEFINE_SPMI_SET_POINTS(ht_nldo); static DEFINE_SPMI_SET_POINTS(hfs430); static DEFINE_SPMI_SET_POINTS(ht_p150); static DEFINE_SPMI_SET_POINTS(ht_p600); +static DEFINE_SPMI_SET_POINTS(nldo_510); +static DEFINE_SPMI_SET_POINTS(ftsmps510); static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf, int len) @@ -1062,6 +1104,24 @@ static unsigned int spmi_regulator_ftsmps426_get_mode(struct regulator_dev *rdev } } +static int +spmi_regulator_ftsmps3_get_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct spmi_regulator *vreg = rdev_get_drvdata(rdev); + u8 reg; + + spmi_vreg_read(vreg, SPMI_COMMON_REG_MODE, ®, 1); + + switch (reg) { + case SPMI_FTSMPS3_MODE_HPM_MASK: + return REGULATOR_MODE_NORMAL; + case SPMI_FTSMPS3_MODE_AUTO_MASK: + return REGULATOR_MODE_FAST; + default: + return REGULATOR_MODE_IDLE; + } +} + static int spmi_regulator_common_set_mode(struct regulator_dev *rdev, unsigned int mode) { @@ -1108,6 +1168,33 @@ spmi_regulator_ftsmps426_set_mode(struct regulator_dev *rdev, unsigned int mode) return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); } +static int +spmi_regulator_ftsmps3_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct spmi_regulator *vreg = rdev_get_drvdata(rdev); + u8 mask = SPMI_FTSMPS3_MODE_MASK; + u8 val; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + val = SPMI_FTSMPS3_MODE_HPM_MASK; + break; + case REGULATOR_MODE_FAST: + val = SPMI_FTSMPS3_MODE_AUTO_MASK; + break; + case REGULATOR_MODE_IDLE: + val = vreg->logical_type == + SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS3 ? + SPMI_FTSMPS3_MODE_RETENTION_MASK : + SPMI_FTSMPS3_MODE_LPM_MASK; + break; + default: + return -EINVAL; + } + + return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); +} + static int spmi_regulator_common_set_load(struct regulator_dev *rdev, int load_uA) { @@ -1465,6 +1552,21 @@ static const struct regulator_ops spmi_hfs430_ops = { .get_mode = spmi_regulator_ftsmps426_get_mode, }; +static const struct regulator_ops spmi_ftsmps3_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = spmi_regulator_ftsmps426_set_voltage, + .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, + .get_voltage_sel = spmi_regulator_ftsmps426_get_voltage, + .map_voltage = spmi_regulator_single_map_voltage, + .list_voltage = spmi_regulator_common_list_voltage, + .set_mode = spmi_regulator_ftsmps3_set_mode, + .get_mode = spmi_regulator_ftsmps3_get_mode, + .set_load = spmi_regulator_common_set_load, + .set_pull_down = spmi_regulator_common_set_pull_down, +}; + /* Maximum possible digital major revision value */ #define INF 0xFF @@ -1549,6 +1651,16 @@ static const struct spmi_regulator_mapping supported_regulators[] = { SPMI_VREG(ULT_LDO, P300, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), SPMI_VREG(ULT_LDO, P150, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), SPMI_VREG(ULT_LDO, P50, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 5000), + SPMI_VREG(LDO, LV_P150_510, 0, INF, LDO_510, ftsmps3, ht_lvpldo, 10000), + SPMI_VREG(LDO, LV_P300_510, 0, INF, LDO_510, ftsmps3, ht_lvpldo, 10000), + SPMI_VREG(LDO, LV_P600_510, 0, INF, LDO_510, ftsmps3, ht_lvpldo, 10000), + SPMI_VREG(LDO, MV_P50_510, 0, INF, LDO_510, ftsmps3, pldo660, 10000), + SPMI_VREG(LDO, MV_P150_510, 0, INF, LDO_510, ftsmps3, pldo660, 10000), + SPMI_VREG(LDO, MV_P600_510, 0, INF, LDO_510, ftsmps3, pldo660, 10000), + SPMI_VREG(LDO, N300_510, 0, INF, LDO_510, ftsmps3, nldo_510, 10000), + SPMI_VREG(LDO, N600_510, 0, INF, LDO_510, ftsmps3, nldo_510, 10000), + SPMI_VREG(LDO, N1200_510, 0, INF, LDO_510, ftsmps3, nldo_510, 10000), + SPMI_VREG(FTS, FTSMPS_510, 0, INF, FTSMPS3, ftsmps3, ftsmps510, 100000), }; static void spmi_calculate_num_voltages(struct spmi_voltage_set_points *points) @@ -1696,6 +1808,27 @@ static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg, return ret; } +static int spmi_regulator_init_slew_rate_ftsmps3(struct spmi_regulator *vreg) +{ + int ret; + u8 reg = 0; + int delay; + + ret = spmi_vreg_read(vreg, SPMI_FTSMPS3_REG_STEP_CTRL, ®, 1); + if (ret) { + dev_err(vreg->dev, "spmi read failed, ret=%d\n", ret); + return ret; + } + + delay = reg & SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK; + delay >>= SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT; + + + vreg->slew_rate = SPMI_FTSMPS3_SLEW_RATE_38p4 >> delay; + + return ret; +} + static int spmi_regulator_init_registers(struct spmi_regulator *vreg, const struct spmi_regulator_init_data *data) { @@ -1846,6 +1979,11 @@ static int spmi_regulator_of_parse(struct device_node *node, if (ret) return ret; break; + case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS3: + ret = spmi_regulator_init_slew_rate_ftsmps3(vreg); + if (ret) + return ret; + break; default: break; }