From patchwork Tue Nov 8 14:42:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 13036385 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 B7352C4332F for ; Tue, 8 Nov 2022 14:44:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234579AbiKHOoC (ORCPT ); Tue, 8 Nov 2022 09:44:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234430AbiKHOnk (ORCPT ); Tue, 8 Nov 2022 09:43:40 -0500 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3AF5210AA; Tue, 8 Nov 2022 06:43:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1667918617; x=1699454617; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=EQA4zq5Aza6o2++oliZzx/FMqAgtSVgf9BxxvU9ea74=; b=SE3R4Yc5MibTI/uXrYmc3sOTzCMEj8RFXbCLvLFxb2lkWQTAM4F7ZI/E 4lsG/FFKdA2hQV18LilCm8c1f3wlJRjInB0GpxkZz37XUmcGurUydtMUT G0WctDVwSUl9jE1ojDOpnMeGLrS6lnkbDbhImHeFbxXrEqrGqNmTAIUjd znJtn+Fjny03gIRe9NM32q5LX7IJRFO+B/dfd7XJx4ypiNHuV3CHw6pF0 ACE7dugR01zk42dBtwEAUKpj6ZaIZertPsihjDB6CgtwodbvH2zgLk1Me T6KtygwlQnDS8fo8TsYk23/nlg5CkUeSGfxR7Dm5xKTtqlbBepnvYeACN A==; X-IronPort-AV: E=McAfee;i="6500,9779,10525"; a="310705551" X-IronPort-AV: E=Sophos;i="5.96,148,1665471600"; d="scan'208";a="310705551" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Nov 2022 06:43:36 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10525"; a="638809762" X-IronPort-AV: E=Sophos;i="5.96,148,1665471600"; d="scan'208";a="638809762" Received: from ppkrause-mobl.ger.corp.intel.com (HELO ijarvine-MOBL2.ger.corp.intel.com) ([10.249.44.73]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Nov 2022 06:43:31 -0800 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-fpga@vger.kernel.org, Xu Yilun , Wu Hao , Tom Rix , Moritz Fischer , Lee Jones , Matthew Gerlach , Russ Weight , Tianfei zhang , Mark Brown , Greg KH , Jean Delvare , Guenter Roeck , linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org Cc: =?utf-8?q?Ilpo_J=C3=A4rvinen?= Subject: [PATCH 04/12] mfd: intel-m10-bmc: Split into core and spi specific parts Date: Tue, 8 Nov 2022 16:42:57 +0200 Message-Id: <20221108144305.45424-5-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221108144305.45424-1-ilpo.jarvinen@linux.intel.com> References: <20221108144305.45424-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Split the common code from intel-m10-bmc driver into intel-m10-bmc-core and move the SPI bus parts into an interface specific file. intel-m10-bmc-core becomes the core MFD functions which can support multiple bus interface like SPI bus. Co-developed-by: Tianfei zhang Signed-off-by: Tianfei zhang Reviewed-by: Russ Weight Signed-off-by: Ilpo Järvinen Acked-by: Guenter Roeck --- MAINTAINERS | 2 +- drivers/fpga/Kconfig | 2 +- drivers/hwmon/Kconfig | 2 +- drivers/mfd/Kconfig | 30 ++-- drivers/mfd/Makefile | 5 +- drivers/mfd/intel-m10-bmc-core.c | 122 +++++++++++++++++ .../{intel-m10-bmc.c => intel-m10-bmc-spi.c} | 128 +++--------------- include/linux/mfd/intel-m10-bmc.h | 6 + 8 files changed, 173 insertions(+), 124 deletions(-) create mode 100644 drivers/mfd/intel-m10-bmc-core.c rename drivers/mfd/{intel-m10-bmc.c => intel-m10-bmc-spi.c} (60%) diff --git a/MAINTAINERS b/MAINTAINERS index cf0f18502372..ddfa4f8b3c80 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10452,7 +10452,7 @@ S: Maintained F: Documentation/ABI/testing/sysfs-driver-intel-m10-bmc F: Documentation/hwmon/intel-m10-bmc-hwmon.rst F: drivers/hwmon/intel-m10-bmc-hwmon.c -F: drivers/mfd/intel-m10-bmc.c +F: drivers/mfd/intel-m10-bmc* F: include/linux/mfd/intel-m10-bmc.h INTEL MENLOW THERMAL DRIVER diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig index d1a8107fdcb3..e4daf79943ee 100644 --- a/drivers/fpga/Kconfig +++ b/drivers/fpga/Kconfig @@ -246,7 +246,7 @@ config FPGA_MGR_VERSAL_FPGA config FPGA_M10_BMC_SEC_UPDATE tristate "Intel MAX10 BMC Secure Update driver" - depends on MFD_INTEL_M10_BMC && FW_UPLOAD + depends on MFD_INTEL_M10_BMC_CORE && FW_UPLOAD help Secure update support for the Intel MAX10 board management controller. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 7ac3daaf59ce..984a55e0f313 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -2321,7 +2321,7 @@ config SENSORS_XGENE config SENSORS_INTEL_M10_BMC_HWMON tristate "Intel MAX10 BMC Hardware Monitoring" - depends on MFD_INTEL_M10_BMC + depends on MFD_INTEL_M10_BMC_CORE help This driver provides support for the hardware monitoring functionality on Intel MAX10 BMC chip. diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 8b93856de432..a09d4ac60dc7 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2219,18 +2219,24 @@ config SGI_MFD_IOC3 If you have an SGI Origin, Octane, or a PCI IOC3 card, then say Y. Otherwise say N. -config MFD_INTEL_M10_BMC - tristate "Intel MAX 10 Board Management Controller" - depends on SPI_MASTER - select REGMAP_SPI_AVMM - select MFD_CORE - help - Support for the Intel MAX 10 board management controller using the - SPI interface. - - This driver provides common support for accessing the device, - additional drivers must be enabled in order to use the functionality - of the device. +config MFD_INTEL_M10_BMC_CORE + tristate + select MFD_CORE + select REGMAP + default n + +config MFD_INTEL_M10_BMC_SPI + tristate "Intel MAX 10 Board Management Controller with SPI" + depends on SPI_MASTER + select MFD_INTEL_M10_BMC_CORE + select REGMAP_SPI_AVMM + help + Support for the Intel MAX 10 board management controller using the + SPI interface. + + This driver provides common support for accessing the device, + additional drivers must be enabled in order to use the functionality + of the device. config MFD_RSMU_I2C tristate "Renesas Synchronization Management Unit with I2C" diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 7ed3ef4a698c..f32276cdd0c2 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -271,7 +271,10 @@ obj-$(CONFIG_MFD_QCOM_PM8008) += qcom-pm8008.o obj-$(CONFIG_SGI_MFD_IOC3) += ioc3.o obj-$(CONFIG_MFD_SIMPLE_MFD_I2C) += simple-mfd-i2c.o -obj-$(CONFIG_MFD_INTEL_M10_BMC) += intel-m10-bmc.o + +intel-m10-bmc-objs := intel-m10-bmc-core.o +obj-$(CONFIG_MFD_INTEL_M10_BMC_CORE) += intel-m10-bmc.o +obj-$(CONFIG_MFD_INTEL_M10_BMC_SPI) += intel-m10-bmc-spi.o obj-$(CONFIG_MFD_ATC260X) += atc260x-core.o obj-$(CONFIG_MFD_ATC260X_I2C) += atc260x-i2c.o diff --git a/drivers/mfd/intel-m10-bmc-core.c b/drivers/mfd/intel-m10-bmc-core.c new file mode 100644 index 000000000000..6630b81b10c4 --- /dev/null +++ b/drivers/mfd/intel-m10-bmc-core.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Intel MAX 10 Board Management Controller chip - common code + * + * Copyright (C) 2018-2020 Intel Corporation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include + +static ssize_t bmc_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct intel_m10bmc *ddata = dev_get_drvdata(dev); + unsigned int val; + int ret; + + ret = m10bmc_sys_read(ddata, M10BMC_BUILD_VER, &val); + if (ret) + return ret; + + return sprintf(buf, "0x%x\n", val); +} +static DEVICE_ATTR_RO(bmc_version); + +static ssize_t bmcfw_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct intel_m10bmc *ddata = dev_get_drvdata(dev); + unsigned int val; + int ret; + + ret = m10bmc_sys_read(ddata, NIOS2_FW_VERSION, &val); + if (ret) + return ret; + + return sprintf(buf, "0x%x\n", val); +} +static DEVICE_ATTR_RO(bmcfw_version); + +static ssize_t mac_address_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct intel_m10bmc *ddata = dev_get_drvdata(dev); + unsigned int macaddr_low, macaddr_high; + int ret; + + ret = m10bmc_sys_read(ddata, M10BMC_MAC_LOW, &macaddr_low); + if (ret) + return ret; + + ret = m10bmc_sys_read(ddata, M10BMC_MAC_HIGH, &macaddr_high); + if (ret) + return ret; + + return sysfs_emit(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n", + (u8)FIELD_GET(M10BMC_MAC_BYTE1, macaddr_low), + (u8)FIELD_GET(M10BMC_MAC_BYTE2, macaddr_low), + (u8)FIELD_GET(M10BMC_MAC_BYTE3, macaddr_low), + (u8)FIELD_GET(M10BMC_MAC_BYTE4, macaddr_low), + (u8)FIELD_GET(M10BMC_MAC_BYTE5, macaddr_high), + (u8)FIELD_GET(M10BMC_MAC_BYTE6, macaddr_high)); +} +static DEVICE_ATTR_RO(mac_address); + +static ssize_t mac_count_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct intel_m10bmc *ddata = dev_get_drvdata(dev); + unsigned int macaddr_high; + int ret; + + ret = m10bmc_sys_read(ddata, M10BMC_MAC_HIGH, &macaddr_high); + if (ret) + return ret; + + return sysfs_emit(buf, "%u\n", (u8)FIELD_GET(M10BMC_MAC_COUNT, macaddr_high)); +} +static DEVICE_ATTR_RO(mac_count); + +static struct attribute *m10bmc_attrs[] = { + &dev_attr_bmc_version.attr, + &dev_attr_bmcfw_version.attr, + &dev_attr_mac_address.attr, + &dev_attr_mac_count.attr, + NULL, +}; + +static const struct attribute_group m10bmc_group = { + .attrs = m10bmc_attrs, +}; + +const struct attribute_group *m10bmc_dev_groups[] = { + &m10bmc_group, + NULL, +}; +EXPORT_SYMBOL_GPL(m10bmc_dev_groups); + +int m10bmc_dev_init(struct intel_m10bmc *m10bmc, const struct intel_m10bmc_platform_info *info) +{ + int ret; + + m10bmc->info = info; + dev_set_drvdata(m10bmc->dev, m10bmc); + + ret = devm_mfd_add_devices(m10bmc->dev, PLATFORM_DEVID_AUTO, + info->cells, info->n_cells, + NULL, 0, NULL); + if (ret) + dev_err(m10bmc->dev, "Failed to register sub-devices: %d\n", ret); + + return ret; +} +EXPORT_SYMBOL_GPL(m10bmc_dev_init); + +MODULE_DESCRIPTION("Intel MAX 10 BMC core MFD driver"); +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/intel-m10-bmc.c b/drivers/mfd/intel-m10-bmc-spi.c similarity index 60% rename from drivers/mfd/intel-m10-bmc.c rename to drivers/mfd/intel-m10-bmc-spi.c index 80487a2f0024..84c46926bebf 100644 --- a/drivers/mfd/intel-m10-bmc.c +++ b/drivers/mfd/intel-m10-bmc-spi.c @@ -5,29 +5,14 @@ * Copyright (C) 2018-2020 Intel Corporation. All rights reserved. */ #include +#include #include #include #include #include -#include #include #include -static struct mfd_cell m10bmc_d5005_subdevs[] = { - { .name = "d5005bmc-hwmon" }, - { .name = "d5005bmc-sec-update" } -}; - -static struct mfd_cell m10bmc_pacn3000_subdevs[] = { - { .name = "n3000bmc-hwmon" }, - { .name = "n3000bmc-retimer" }, - { .name = "n3000bmc-sec-update" }, -}; - -static struct mfd_cell m10bmc_n5010_subdevs[] = { - { .name = "n5010bmc-hwmon" }, -}; - static const struct regmap_range m10bmc_regmap_range[] = { regmap_reg_range(M10BMC_LEGACY_BUILD_VER, M10BMC_LEGACY_BUILD_VER), regmap_reg_range(M10BMC_SYS_BASE, M10BMC_SYS_END), @@ -48,86 +33,6 @@ static struct regmap_config intel_m10bmc_regmap_config = { .max_register = M10BMC_MEM_END, }; -static ssize_t bmc_version_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct intel_m10bmc *ddata = dev_get_drvdata(dev); - unsigned int val; - int ret; - - ret = m10bmc_sys_read(ddata, M10BMC_BUILD_VER, &val); - if (ret) - return ret; - - return sprintf(buf, "0x%x\n", val); -} -static DEVICE_ATTR_RO(bmc_version); - -static ssize_t bmcfw_version_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct intel_m10bmc *ddata = dev_get_drvdata(dev); - unsigned int val; - int ret; - - ret = m10bmc_sys_read(ddata, NIOS2_FW_VERSION, &val); - if (ret) - return ret; - - return sprintf(buf, "0x%x\n", val); -} -static DEVICE_ATTR_RO(bmcfw_version); - -static ssize_t mac_address_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct intel_m10bmc *ddata = dev_get_drvdata(dev); - unsigned int macaddr_low, macaddr_high; - int ret; - - ret = m10bmc_sys_read(ddata, M10BMC_MAC_LOW, &macaddr_low); - if (ret) - return ret; - - ret = m10bmc_sys_read(ddata, M10BMC_MAC_HIGH, &macaddr_high); - if (ret) - return ret; - - return sysfs_emit(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n", - (u8)FIELD_GET(M10BMC_MAC_BYTE1, macaddr_low), - (u8)FIELD_GET(M10BMC_MAC_BYTE2, macaddr_low), - (u8)FIELD_GET(M10BMC_MAC_BYTE3, macaddr_low), - (u8)FIELD_GET(M10BMC_MAC_BYTE4, macaddr_low), - (u8)FIELD_GET(M10BMC_MAC_BYTE5, macaddr_high), - (u8)FIELD_GET(M10BMC_MAC_BYTE6, macaddr_high)); -} -static DEVICE_ATTR_RO(mac_address); - -static ssize_t mac_count_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct intel_m10bmc *ddata = dev_get_drvdata(dev); - unsigned int macaddr_high; - int ret; - - ret = m10bmc_sys_read(ddata, M10BMC_MAC_HIGH, &macaddr_high); - if (ret) - return ret; - - return sysfs_emit(buf, "%u\n", - (u8)FIELD_GET(M10BMC_MAC_COUNT, macaddr_high)); -} -static DEVICE_ATTR_RO(mac_count); - -static struct attribute *m10bmc_attrs[] = { - &dev_attr_bmc_version.attr, - &dev_attr_bmcfw_version.attr, - &dev_attr_mac_address.attr, - &dev_attr_mac_count.attr, - NULL, -}; -ATTRIBUTE_GROUPS(m10bmc); - static int check_m10bmc_version(struct intel_m10bmc *ddata) { unsigned int v; @@ -166,11 +71,9 @@ static int intel_m10_bmc_spi_probe(struct spi_device *spi) return -ENOMEM; info = (struct intel_m10bmc_platform_info *)id->driver_data; - ddata->info = info; ddata->dev = dev; - ddata->regmap = - devm_regmap_init_spi_avmm(spi, &intel_m10bmc_regmap_config); + ddata->regmap = devm_regmap_init_spi_avmm(spi, &intel_m10bmc_regmap_config); if (IS_ERR(ddata->regmap)) { ret = PTR_ERR(ddata->regmap); dev_err(dev, "Failed to allocate regmap: %d\n", ret); @@ -185,15 +88,24 @@ static int intel_m10_bmc_spi_probe(struct spi_device *spi) return ret; } - ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, - info->cells, info->n_cells, - NULL, 0, NULL); - if (ret) - dev_err(dev, "Failed to register sub-devices: %d\n", ret); - - return ret; + return m10bmc_dev_init(ddata, info); } +static struct mfd_cell m10bmc_d5005_subdevs[] = { + { .name = "d5005bmc-hwmon" }, + { .name = "d5005bmc-sec-update" }, +}; + +static struct mfd_cell m10bmc_pacn3000_subdevs[] = { + { .name = "n3000bmc-hwmon" }, + { .name = "n3000bmc-retimer" }, + { .name = "n3000bmc-sec-update" }, +}; + +static struct mfd_cell m10bmc_n5010_subdevs[] = { + { .name = "n5010bmc-hwmon" }, +}; + static const struct intel_m10bmc_platform_info m10bmc_m10_n3000 = { .type = M10_N3000, .cells = m10bmc_pacn3000_subdevs, @@ -223,14 +135,14 @@ MODULE_DEVICE_TABLE(spi, m10bmc_spi_id); static struct spi_driver intel_m10bmc_spi_driver = { .driver = { .name = "intel-m10-bmc", - .dev_groups = m10bmc_groups, + .dev_groups = m10bmc_dev_groups, }, .probe = intel_m10_bmc_spi_probe, .id_table = m10bmc_spi_id, }; module_spi_driver(intel_m10bmc_spi_driver); -MODULE_DESCRIPTION("Intel MAX 10 BMC Device Driver"); +MODULE_DESCRIPTION("Intel MAX 10 BMC SPI bus interface"); MODULE_AUTHOR("Intel Corporation"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("spi:intel-m10-bmc"); diff --git a/include/linux/mfd/intel-m10-bmc.h b/include/linux/mfd/intel-m10-bmc.h index e58115f514b9..93ec905c928e 100644 --- a/include/linux/mfd/intel-m10-bmc.h +++ b/include/linux/mfd/intel-m10-bmc.h @@ -179,4 +179,10 @@ m10bmc_raw_read(struct intel_m10bmc *m10bmc, unsigned int addr, #define m10bmc_sys_read(m10bmc, offset, val) \ m10bmc_raw_read(m10bmc, M10BMC_SYS_BASE + (offset), val) +/* + * MAX10 BMC Core support + */ +int m10bmc_dev_init(struct intel_m10bmc *m10bmc, const struct intel_m10bmc_platform_info *info); +extern const struct attribute_group *m10bmc_dev_groups[]; + #endif /* __MFD_INTEL_M10_BMC_H */