From patchwork Thu Jan 6 17:31:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Caleb Connolly X-Patchwork-Id: 12705579 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 599E2C43217 for ; Thu, 6 Jan 2022 17:32:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242029AbiAFRb7 (ORCPT ); Thu, 6 Jan 2022 12:31:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241963AbiAFRby (ORCPT ); Thu, 6 Jan 2022 12:31:54 -0500 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19517C034001 for ; Thu, 6 Jan 2022 09:31:52 -0800 (PST) Received: by mail-wr1-x434.google.com with SMTP id a5so2252037wrh.5 for ; Thu, 06 Jan 2022 09:31:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7sCt1j81wCP4UN2kM5yRhlJdHRsU1cx9asSc64DRuMM=; b=P0VbTwMvLLENpIJt9cnBAc/FIfFhVMglEg1zWgs4Mc7xw2d35fxFS7F6Hc6XECqcQr VpWmFATm+EP+tRYx7OQwhLp0MPjgVQ6FoMS1vB1FEdzVOQ8qFpWCI+sIeZa/2L7GnYHM bpTPxNVGHs7DgBZ5e3sW1viY7gf6fM52TskQdvUuzMcQPW1tZhTzbEKjVCxOegv/tUGa H6BS0to2hZ+AuYnMvKgXHWKohpNODhqL+27vGWanxl2BR2oKEIRl2NG1o7ZW/quVXFwE EVgZs7gXFn1B4Zai9y4TA+IwWxojpq2koeA3DiIjJ2l0SGpVsNcXXfhQ8faj11pSoE3/ asrg== 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=7sCt1j81wCP4UN2kM5yRhlJdHRsU1cx9asSc64DRuMM=; b=ZKj5vfh3yCq1Jj8ZJWB74ArrFiBF9HCSN0R4fwbf3bVhvMJ3qN9j084DNPE59B5J34 HngJjBxO0WLcTRefYKcP17YUawUzNOCGnYUIiCJGaieDy9vT+uqmw1t91raLmwNg4QM9 NS4Sm8i12QSaC4Zxesm1UH5Y8gtFXnAakXdGs5LybUVZ+/kNgF+/8yz+KtIreMVsVEwz OtwdPacrAyM41j6llG8pKycKYw1HQErxjloWlmFDbFTpSRQewA5SunIc/JXgbZIH/LJy WGQNDNKxvwDXXZwblJzDPCvb89QzLQxX9CIC+PvzvHkKs4zU2WMUQmxvlw3PlyoGfcel Aw2A== X-Gm-Message-State: AOAM531ZKSF+Bvm2VwbX/u3zm9Xzah0gqcbsOwGdQq0Cni4a0wHLZZmt iWRuoXSYDVAXmZ6h6XWfx/NSiQ== X-Google-Smtp-Source: ABdhPJyhCAr9o27Bjwlo3S67cg7MIsFNj6YkSHyNEUAET8KVcpgKp18907IpNXmubSGwk8q2+yzTig== X-Received: by 2002:a5d:548f:: with SMTP id h15mr2232639wrv.225.1641490310610; Thu, 06 Jan 2022 09:31:50 -0800 (PST) Received: from localhost.localdomain ([81.178.195.252]) by smtp.gmail.com with ESMTPSA id b16sm2575594wmq.41.2022.01.06.09.31.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Jan 2022 09:31:50 -0800 (PST) From: Caleb Connolly To: caleb.connolly@linaro.org, Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Andy Gross , Bjorn Andersson , Lee Jones , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: sumit.semwal@linaro.org, amit.pundir@linaro.org, john.stultz@linaro.org Subject: [PATCH v3 1/7] mfd: qcom-spmi-pmic: expose the PMIC revid information to clients Date: Thu, 6 Jan 2022 17:31:25 +0000 Message-Id: <20220106173131.3279580-2-caleb.connolly@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220106173131.3279580-1-caleb.connolly@linaro.org> References: <20220106173131.3279580-1-caleb.connolly@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Some PMIC functions such as the RRADC need to be aware of the PMIC chip revision information to implement errata or otherwise adjust behaviour, export the PMIC information to enable this. This is specifically required to enable the RRADC to adjust coefficients based on which chip fab the PMIC was produced in, this can vary per unique device and therefore has to be read at runtime. Signed-off-by: Caleb Connolly --- drivers/mfd/qcom-spmi-pmic.c | 108 +++++++++++++++++------------------ include/soc/qcom/qcom-pmic.h | 63 ++++++++++++++++++++ 2 files changed, 114 insertions(+), 57 deletions(-) create mode 100644 include/soc/qcom/qcom-pmic.h diff --git a/drivers/mfd/qcom-spmi-pmic.c b/drivers/mfd/qcom-spmi-pmic.c index 1cacc00aa6c9..6b75c2f52b74 100644 --- a/drivers/mfd/qcom-spmi-pmic.c +++ b/drivers/mfd/qcom-spmi-pmic.c @@ -3,51 +3,24 @@ * Copyright (c) 2014, The Linux Foundation. All rights reserved. */ +#include +#include #include #include +#include #include #include #include +#include #define PMIC_REV2 0x101 #define PMIC_REV3 0x102 #define PMIC_REV4 0x103 #define PMIC_TYPE 0x104 #define PMIC_SUBTYPE 0x105 - +#define PMIC_FAB_ID 0x1f2 #define PMIC_TYPE_VALUE 0x51 -#define COMMON_SUBTYPE 0x00 -#define PM8941_SUBTYPE 0x01 -#define PM8841_SUBTYPE 0x02 -#define PM8019_SUBTYPE 0x03 -#define PM8226_SUBTYPE 0x04 -#define PM8110_SUBTYPE 0x05 -#define PMA8084_SUBTYPE 0x06 -#define PMI8962_SUBTYPE 0x07 -#define PMD9635_SUBTYPE 0x08 -#define PM8994_SUBTYPE 0x09 -#define PMI8994_SUBTYPE 0x0a -#define PM8916_SUBTYPE 0x0b -#define PM8004_SUBTYPE 0x0c -#define PM8909_SUBTYPE 0x0d -#define PM8028_SUBTYPE 0x0e -#define PM8901_SUBTYPE 0x0f -#define PM8950_SUBTYPE 0x10 -#define PMI8950_SUBTYPE 0x11 -#define PM8998_SUBTYPE 0x14 -#define PMI8998_SUBTYPE 0x15 -#define PM8005_SUBTYPE 0x18 -#define PM660L_SUBTYPE 0x1A -#define PM660_SUBTYPE 0x1B -#define PM8150_SUBTYPE 0x1E -#define PM8150L_SUBTYPE 0x1f -#define PM8150B_SUBTYPE 0x20 -#define PMK8002_SUBTYPE 0x21 -#define PM8009_SUBTYPE 0x24 -#define PM8150C_SUBTYPE 0x26 -#define SMB2351_SUBTYPE 0x29 - static const struct of_device_id pmic_spmi_id_table[] = { { .compatible = "qcom,pm660", .data = (void *)PM660_SUBTYPE }, { .compatible = "qcom,pm660l", .data = (void *)PM660L_SUBTYPE }, @@ -81,42 +54,47 @@ static const struct of_device_id pmic_spmi_id_table[] = { { } }; -static void pmic_spmi_show_revid(struct regmap *map, struct device *dev) +static int pmic_spmi_load_revid(struct regmap *map, struct device *dev, + struct qcom_spmi_pmic *pmic) { - unsigned int rev2, minor, major, type, subtype; - const char *name = "unknown"; int ret, i; - ret = regmap_read(map, PMIC_TYPE, &type); + ret = regmap_read(map, PMIC_TYPE, &pmic->type); if (ret < 0) - return; + return ret; - if (type != PMIC_TYPE_VALUE) - return; + if (pmic->type != PMIC_TYPE_VALUE) + return ret; - ret = regmap_read(map, PMIC_SUBTYPE, &subtype); + ret = regmap_read(map, PMIC_SUBTYPE, &pmic->subtype); if (ret < 0) - return; + return ret; for (i = 0; i < ARRAY_SIZE(pmic_spmi_id_table); i++) { - if (subtype == (unsigned long)pmic_spmi_id_table[i].data) + if (pmic->subtype == (unsigned long)pmic_spmi_id_table[i].data) break; } if (i != ARRAY_SIZE(pmic_spmi_id_table)) - name = pmic_spmi_id_table[i].compatible; + pmic->name = devm_kstrdup_const(dev, pmic_spmi_id_table[i].compatible, GFP_KERNEL); - ret = regmap_read(map, PMIC_REV2, &rev2); + ret = regmap_read(map, PMIC_REV2, &pmic->rev2); if (ret < 0) - return; + return ret; - ret = regmap_read(map, PMIC_REV3, &minor); + ret = regmap_read(map, PMIC_REV3, &pmic->minor); if (ret < 0) - return; + return ret; - ret = regmap_read(map, PMIC_REV4, &major); + ret = regmap_read(map, PMIC_REV4, &pmic->major); if (ret < 0) - return; + return ret; + + if (pmic->subtype == PMI8998_SUBTYPE || pmic->subtype == PM660_SUBTYPE) { + ret = regmap_read(map, PMIC_FAB_ID, &pmic->fab_id); + if (ret < 0) + return ret; + } /* * In early versions of PM8941 and PM8226, the major revision number @@ -124,14 +102,14 @@ static void pmic_spmi_show_revid(struct regmap *map, struct device *dev) * Increment the major revision number here if the chip is an early * version of PM8941 or PM8226. */ - if ((subtype == PM8941_SUBTYPE || subtype == PM8226_SUBTYPE) && - major < 0x02) - major++; + if ((pmic->subtype == PM8941_SUBTYPE || pmic->subtype == PM8226_SUBTYPE) && + pmic->major < 0x02) + pmic->major++; - if (subtype == PM8110_SUBTYPE) - minor = rev2; + if (pmic->subtype == PM8110_SUBTYPE) + pmic->minor = pmic->rev2; - dev_dbg(dev, "%x: %s v%d.%d\n", subtype, name, major, minor); + return 0; } static const struct regmap_config spmi_regmap_config = { @@ -144,22 +122,38 @@ static const struct regmap_config spmi_regmap_config = { static int pmic_spmi_probe(struct spmi_device *sdev) { struct regmap *regmap; + struct qcom_spmi_pmic *pmic; regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config); if (IS_ERR(regmap)) return PTR_ERR(regmap); + pmic = devm_kzalloc(&sdev->dev, sizeof(*pmic), GFP_KERNEL); + if (!pmic) + return -ENOMEM; + /* Only the first slave id for a PMIC contains this information */ - if (sdev->usid % 2 == 0) - pmic_spmi_show_revid(regmap, &sdev->dev); + if (sdev->usid % 2 == 0) { + pmic_spmi_load_revid(regmap, &sdev->dev, pmic); + spmi_device_set_drvdata(sdev, pmic); + qcom_pmic_print_info(&sdev->dev, pmic); + } return devm_of_platform_populate(&sdev->dev); } +static void pmic_spmi_remove(struct spmi_device *sdev) +{ + struct qcom_spmi_pmic *pmic = spmi_device_get_drvdata(sdev); + + kfree(pmic->name); +} + MODULE_DEVICE_TABLE(of, pmic_spmi_id_table); static struct spmi_driver pmic_spmi_driver = { .probe = pmic_spmi_probe, + .remove = pmic_spmi_remove, .driver = { .name = "pmic-spmi", .of_match_table = pmic_spmi_id_table, diff --git a/include/soc/qcom/qcom-pmic.h b/include/soc/qcom/qcom-pmic.h new file mode 100644 index 000000000000..59114988582d --- /dev/null +++ b/include/soc/qcom/qcom-pmic.h @@ -0,0 +1,63 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (c) 2021 Linaro. All rights reserved. + * Copyright (c) 2021 Caleb Connolly + */ + +#ifndef __QCOM_PMIC_H__ +#define __QCOM_PMIC_H__ + +#define COMMON_SUBTYPE 0x00 +#define PM8941_SUBTYPE 0x01 +#define PM8841_SUBTYPE 0x02 +#define PM8019_SUBTYPE 0x03 +#define PM8226_SUBTYPE 0x04 +#define PM8110_SUBTYPE 0x05 +#define PMA8084_SUBTYPE 0x06 +#define PMI8962_SUBTYPE 0x07 +#define PMD9635_SUBTYPE 0x08 +#define PM8994_SUBTYPE 0x09 +#define PMI8994_SUBTYPE 0x0a +#define PM8916_SUBTYPE 0x0b +#define PM8004_SUBTYPE 0x0c +#define PM8909_SUBTYPE 0x0d +#define PM8028_SUBTYPE 0x0e +#define PM8901_SUBTYPE 0x0f +#define PM8950_SUBTYPE 0x10 +#define PMI8950_SUBTYPE 0x11 +#define PM8998_SUBTYPE 0x14 +#define PMI8998_SUBTYPE 0x15 +#define PM8005_SUBTYPE 0x18 +#define PM660L_SUBTYPE 0x1A +#define PM660_SUBTYPE 0x1B +#define PM8150_SUBTYPE 0x1E +#define PM8150L_SUBTYPE 0x1f +#define PM8150B_SUBTYPE 0x20 +#define PMK8002_SUBTYPE 0x21 +#define PM8009_SUBTYPE 0x24 +#define PM8150C_SUBTYPE 0x26 +#define SMB2351_SUBTYPE 0x29 + +#define PMI8998_FAB_ID_SMIC 0x11 +#define PMI8998_FAB_ID_GF 0x30 + +#define PM660_FAB_ID_GF 0x0 +#define PM660_FAB_ID_TSMC 0x2 +#define PM660_FAB_ID_MX 0x3 + +struct qcom_spmi_pmic { + unsigned int type; + unsigned int subtype; + unsigned int major; + unsigned int minor; + unsigned int rev2; + unsigned int fab_id; + const char *name; +}; + +static inline void qcom_pmic_print_info(struct device *dev, struct qcom_spmi_pmic *pmic) +{ + dev_info(dev, "%x: %s v%d.%d\n", + pmic->subtype, pmic->name, pmic->major, pmic->minor); +} + +#endif /* __QCOM_PMIC_H__ */