From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964877AbcDTL02 (ORCPT ); Wed, 20 Apr 2016 07:26:28 -0400 Received: from mail-am1on0128.outbound.protection.outlook.com ([157.56.112.128]:33618 "EHLO emea01-am1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933747AbcDTL00 (ORCPT ); Wed, 20 Apr 2016 07:26:26 -0400 X-Greylist: delayed 915 seconds by postgrey-1.27 at vger.kernel.org; Wed, 20 Apr 2016 07:26:25 EDT Authentication-Results: linaro.org; dkim=none (message not signed) header.d=none;linaro.org; dmarc=none action=none header.from=gomspace.com; From: Jeppe Ledet-Pedersen To: , , , , , , , , , CC: , , , Jeppe Ledet-Pedersen Subject: [PATCH 2/3] misc: eeprom: add Cypress FM33256B FRAM driver Date: Wed, 20 Apr 2016 13:07:50 +0200 Message-ID: <1461150471-23163-3-git-send-email-jlp@gomspace.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1461150471-23163-1-git-send-email-jlp@gomspace.com> References: <1461150471-23163-1-git-send-email-jlp@gomspace.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [77.243.61.136] X-ClientProxiedBy: VI1PR02CA0003.eurprd02.prod.outlook.com (10.162.7.141) To DB4PR04MB0637.eurprd04.prod.outlook.com (10.242.221.15) X-MS-Office365-Filtering-Correlation-Id: 1d3c094a-d54b-47cf-fb4b-08d3690c8639 X-Microsoft-Exchange-Diagnostics: 1;DB4PR04MB0637;2:dMR09UPSiTZ32+GeMjB+ciSIndqBrzlkRCAZY7Mjq04GcqEnk/BTr6qHtoxppDjCaI6RmBNuwU5K+E5gNXSgBjxsveK+f6mz8dGviEgrzhNpyr839Odmw9atfbq/9l8LnwH5BY0NXmhwR2p2gsLnuCXQ6BIggm7IWXVL2NtgiFwFBrRyeOC137En+94WA9cZ;3:U6dV9vEhSsv5G0wqmxVUp1O+dyV8iTw7ZCi2CR/CCu7wKHZTLfPkyfvg30eGVBctKfBhW+uQzyALxMsQPnCrMAnSl8ppvwqffY55DHGe9jgX50glg3oxkymm4PKzyUB+ X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:DB4PR04MB0637; 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If so, the module + will be called fm33256b-fram. + endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index fc1e81d..f991f0f 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o +obj-$(CONFIG_EEPROM_FM33256B) += fm33256b-fram.o diff --git a/drivers/misc/eeprom/fm33256b-fram.c b/drivers/misc/eeprom/fm33256b-fram.c new file mode 100644 index 0000000..fd3c2c9 --- /dev/null +++ b/drivers/misc/eeprom/fm33256b-fram.c @@ -0,0 +1,110 @@ +/* + * Cypress FM33256B Processor Companion FRAM Driver + * + * Copyright (C) 2016 GomSpace ApS + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include + +static ssize_t fm33256b_fram_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct fm33256b *fm33256b = dev_get_drvdata(dev->parent); + + ret = regmap_bulk_read(fm33256b->regmap_fram, off, buf, count); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t fm33256b_fram_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct fm33256b *fm33256b = dev_get_drvdata(dev->parent); + + ret = regmap_bulk_write(fm33256b->regmap_fram, off, buf, count); + if (ret < 0) + return ret; + + return count; +} + +static struct bin_attribute fm33256b_fram_attr = { + .attr = { + .name = "fram", + .mode = S_IWUSR | S_IRUGO, + }, + .size = FM33256B_MAX_FRAM, + .read = fm33256b_fram_read, + .write = fm33256b_fram_write, +}; + +static int fm33256b_fram_probe(struct platform_device *pdev) +{ + int ret; + struct device *dev = &pdev->dev; + struct fm33256b *fm33256b; + + fm33256b = dev_get_drvdata(dev->parent); + + ret = sysfs_create_bin_file(&(dev->kobj), &fm33256b_fram_attr); + if (ret < 0) + return ret; + + return 0; +} + +static int fm33256b_fram_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct fm33256b *fm33256b; + + fm33256b = dev_get_drvdata(dev->parent); + + sysfs_remove_bin_file(&(dev->kobj), &fm33256b_fram_attr); + + return 0; +} + +static const struct of_device_id fm33256b_fram_dt_ids[] = { + { .compatible = "cypress,fm33256b-fram" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, fm33256b_fram_dt_ids); + +static struct platform_driver fm33256b_fram_driver = { + .driver = { + .name = "fm33256b-fram", + .of_match_table = fm33256b_fram_dt_ids, + }, + .probe = fm33256b_fram_probe, + .remove = fm33256b_fram_remove, +}; +module_platform_driver(fm33256b_fram_driver); + +MODULE_ALIAS("platform:fm33256b-fram"); +MODULE_AUTHOR("Jeppe Ledet-Pedersen "); +MODULE_DESCRIPTION("Cypress FM33256B Processor Companion FRAM Driver"); +MODULE_LICENSE("GPL v2"); -- 2.1.4 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Sender: rtc-linux@googlegroups.com Received: from emea01-db3-obe.outbound.protection.outlook.com (mail-db3on0138.outbound.protection.outlook.com. [157.55.234.138]) by gmr-mx.google.com with ESMTPS id t10si1039917ywe.4.2016.04.20.04.11.31 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 20 Apr 2016 04:11:31 -0700 (PDT) From: Jeppe Ledet-Pedersen To: , , , , , , , , , CC: , , , Jeppe Ledet-Pedersen Subject: [rtc-linux] [PATCH 2/3] misc: eeprom: add Cypress FM33256B FRAM driver Date: Wed, 20 Apr 2016 13:07:50 +0200 Message-ID: <1461150471-23163-3-git-send-email-jlp@gomspace.com> In-Reply-To: <1461150471-23163-1-git-send-email-jlp@gomspace.com> References: <1461150471-23163-1-git-send-email-jlp@gomspace.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Reply-To: rtc-linux@googlegroups.com List-ID: List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , Signed-off-by: Jeppe Ledet-Pedersen --- MAINTAINERS | 1 + drivers/misc/eeprom/Kconfig | 12 ++++ drivers/misc/eeprom/Makefile | 1 + drivers/misc/eeprom/fm33256b-fram.c | 110 ++++++++++++++++++++++++++++++++++++ 4 files changed, 124 insertions(+) create mode 100644 drivers/misc/eeprom/fm33256b-fram.c diff --git a/MAINTAINERS b/MAINTAINERS index 87b5023..a8b71d8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3387,6 +3387,7 @@ M: Jeppe Ledet-Pedersen S: Maintained F: include/linux/mfd/fm33256b.h F: drivers/mfd/fm33256b.c +F: drivers/misc/eeprom/fm33256b-fram.c CYTTSP TOUCHSCREEN DRIVER M: Ferruh Yigit diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index cfc493c..2c0c26a3 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -102,4 +102,16 @@ config EEPROM_DIGSY_MTC_CFG If unsure, say N. +config EEPROM_FM33256B + tristate "Cypress FM33256B FRAM support" + depends on MFD_FM33256B + help + This is a driver for the FRAM found in the Cypress FM33256B Processor + Companion. + + The FRAM is exported as a binary sysfs file. + + This driver can also be built as a module. If so, the module + will be called fm33256b-fram. + endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index fc1e81d..f991f0f 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o +obj-$(CONFIG_EEPROM_FM33256B) += fm33256b-fram.o diff --git a/drivers/misc/eeprom/fm33256b-fram.c b/drivers/misc/eeprom/fm33256b-fram.c new file mode 100644 index 0000000..fd3c2c9 --- /dev/null +++ b/drivers/misc/eeprom/fm33256b-fram.c @@ -0,0 +1,110 @@ +/* + * Cypress FM33256B Processor Companion FRAM Driver + * + * Copyright (C) 2016 GomSpace ApS + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include + +static ssize_t fm33256b_fram_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct fm33256b *fm33256b = dev_get_drvdata(dev->parent); + + ret = regmap_bulk_read(fm33256b->regmap_fram, off, buf, count); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t fm33256b_fram_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct fm33256b *fm33256b = dev_get_drvdata(dev->parent); + + ret = regmap_bulk_write(fm33256b->regmap_fram, off, buf, count); + if (ret < 0) + return ret; + + return count; +} + +static struct bin_attribute fm33256b_fram_attr = { + .attr = { + .name = "fram", + .mode = S_IWUSR | S_IRUGO, + }, + .size = FM33256B_MAX_FRAM, + .read = fm33256b_fram_read, + .write = fm33256b_fram_write, +}; + +static int fm33256b_fram_probe(struct platform_device *pdev) +{ + int ret; + struct device *dev = &pdev->dev; + struct fm33256b *fm33256b; + + fm33256b = dev_get_drvdata(dev->parent); + + ret = sysfs_create_bin_file(&(dev->kobj), &fm33256b_fram_attr); + if (ret < 0) + return ret; + + return 0; +} + +static int fm33256b_fram_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct fm33256b *fm33256b; + + fm33256b = dev_get_drvdata(dev->parent); + + sysfs_remove_bin_file(&(dev->kobj), &fm33256b_fram_attr); + + return 0; +} + +static const struct of_device_id fm33256b_fram_dt_ids[] = { + { .compatible = "cypress,fm33256b-fram" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, fm33256b_fram_dt_ids); + +static struct platform_driver fm33256b_fram_driver = { + .driver = { + .name = "fm33256b-fram", + .of_match_table = fm33256b_fram_dt_ids, + }, + .probe = fm33256b_fram_probe, + .remove = fm33256b_fram_remove, +}; +module_platform_driver(fm33256b_fram_driver); + +MODULE_ALIAS("platform:fm33256b-fram"); +MODULE_AUTHOR("Jeppe Ledet-Pedersen "); +MODULE_DESCRIPTION("Cypress FM33256B Processor Companion FRAM Driver"); +MODULE_LICENSE("GPL v2"); -- 2.1.4 -- -- You received this message because you are subscribed to "rtc-linux". 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From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeppe Ledet-Pedersen Subject: [PATCH 2/3] misc: eeprom: add Cypress FM33256B FRAM driver Date: Wed, 20 Apr 2016 13:07:50 +0200 Message-ID: <1461150471-23163-3-git-send-email-jlp@gomspace.com> References: <1461150471-23163-1-git-send-email-jlp@gomspace.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1461150471-23163-1-git-send-email-jlp-jTq9jD7AHYRWk0Htik3J/w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org Cc: rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jeppe Ledet-Pedersen List-Id: devicetree@vger.kernel.org Signed-off-by: Jeppe Ledet-Pedersen --- MAINTAINERS | 1 + drivers/misc/eeprom/Kconfig | 12 ++++ drivers/misc/eeprom/Makefile | 1 + drivers/misc/eeprom/fm33256b-fram.c | 110 ++++++++++++++++++++++++++++++++++++ 4 files changed, 124 insertions(+) create mode 100644 drivers/misc/eeprom/fm33256b-fram.c diff --git a/MAINTAINERS b/MAINTAINERS index 87b5023..a8b71d8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3387,6 +3387,7 @@ M: Jeppe Ledet-Pedersen S: Maintained F: include/linux/mfd/fm33256b.h F: drivers/mfd/fm33256b.c +F: drivers/misc/eeprom/fm33256b-fram.c CYTTSP TOUCHSCREEN DRIVER M: Ferruh Yigit diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index cfc493c..2c0c26a3 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -102,4 +102,16 @@ config EEPROM_DIGSY_MTC_CFG If unsure, say N. +config EEPROM_FM33256B + tristate "Cypress FM33256B FRAM support" + depends on MFD_FM33256B + help + This is a driver for the FRAM found in the Cypress FM33256B Processor + Companion. + + The FRAM is exported as a binary sysfs file. + + This driver can also be built as a module. If so, the module + will be called fm33256b-fram. + endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index fc1e81d..f991f0f 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o +obj-$(CONFIG_EEPROM_FM33256B) += fm33256b-fram.o diff --git a/drivers/misc/eeprom/fm33256b-fram.c b/drivers/misc/eeprom/fm33256b-fram.c new file mode 100644 index 0000000..fd3c2c9 --- /dev/null +++ b/drivers/misc/eeprom/fm33256b-fram.c @@ -0,0 +1,110 @@ +/* + * Cypress FM33256B Processor Companion FRAM Driver + * + * Copyright (C) 2016 GomSpace ApS + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include + +static ssize_t fm33256b_fram_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct fm33256b *fm33256b = dev_get_drvdata(dev->parent); + + ret = regmap_bulk_read(fm33256b->regmap_fram, off, buf, count); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t fm33256b_fram_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + int ret; + struct device *dev = container_of(kobj, struct device, kobj); + struct fm33256b *fm33256b = dev_get_drvdata(dev->parent); + + ret = regmap_bulk_write(fm33256b->regmap_fram, off, buf, count); + if (ret < 0) + return ret; + + return count; +} + +static struct bin_attribute fm33256b_fram_attr = { + .attr = { + .name = "fram", + .mode = S_IWUSR | S_IRUGO, + }, + .size = FM33256B_MAX_FRAM, + .read = fm33256b_fram_read, + .write = fm33256b_fram_write, +}; + +static int fm33256b_fram_probe(struct platform_device *pdev) +{ + int ret; + struct device *dev = &pdev->dev; + struct fm33256b *fm33256b; + + fm33256b = dev_get_drvdata(dev->parent); + + ret = sysfs_create_bin_file(&(dev->kobj), &fm33256b_fram_attr); + if (ret < 0) + return ret; + + return 0; +} + +static int fm33256b_fram_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct fm33256b *fm33256b; + + fm33256b = dev_get_drvdata(dev->parent); + + sysfs_remove_bin_file(&(dev->kobj), &fm33256b_fram_attr); + + return 0; +} + +static const struct of_device_id fm33256b_fram_dt_ids[] = { + { .compatible = "cypress,fm33256b-fram" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, fm33256b_fram_dt_ids); + +static struct platform_driver fm33256b_fram_driver = { + .driver = { + .name = "fm33256b-fram", + .of_match_table = fm33256b_fram_dt_ids, + }, + .probe = fm33256b_fram_probe, + .remove = fm33256b_fram_remove, +}; +module_platform_driver(fm33256b_fram_driver); + +MODULE_ALIAS("platform:fm33256b-fram"); +MODULE_AUTHOR("Jeppe Ledet-Pedersen "); +MODULE_DESCRIPTION("Cypress FM33256B Processor Companion FRAM Driver"); +MODULE_LICENSE("GPL v2"); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html