From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> To: linux-arm-kernel@lists.infradead.org Cc: Maxime Ripard <maxime.ripard@free-electrons.com>, Rob Herring <robh+dt@kernel.org>, Kumar Gala <galak@codeaurora.org>, Mark Brown <broonie@kernel.org>, s.hauer@pengutronix.de, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, arnd@arndb.de, sboyd@codeaurora.org, Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, pantelis.antoniou@konsulko.com, mporter@konsulko.com Subject: [PATCH v5 10/11] nvmem: sunxi: Move the SID driver to the nvmem framework Date: Thu, 21 May 2015 17:45:33 +0100 [thread overview] Message-ID: <1432226733-9243-1-git-send-email-srinivas.kandagatla@linaro.org> (raw) In-Reply-To: <1432226535-8640-1-git-send-email-srinivas.kandagatla@linaro.org> From: Maxime Ripard <maxime.ripard@free-electrons.com> Now that we have the nvmem framework, we can consolidate the common driver code. Move the driver to the framework, and hopefully, it will fix the sysfs file creation race. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> [srinivas.kandagatla: Moved to regmap based EEPROM framework] Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> --- Documentation/ABI/testing/sysfs-driver-sunxi-sid | 22 --- .../bindings/misc/allwinner,sunxi-sid.txt | 17 --- .../bindings/nvmem/allwinner,sunxi-sid.txt | 21 +++ drivers/misc/eeprom/Kconfig | 13 -- drivers/misc/eeprom/Makefile | 1 - drivers/misc/eeprom/sunxi_sid.c | 156 --------------------- drivers/nvmem/Kconfig | 11 ++ drivers/nvmem/Makefile | 2 + drivers/nvmem/sunxi-sid.c | 64 +++++++++ 9 files changed, 98 insertions(+), 209 deletions(-) delete mode 100644 Documentation/ABI/testing/sysfs-driver-sunxi-sid delete mode 100644 Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt create mode 100644 Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt delete mode 100644 drivers/misc/eeprom/sunxi_sid.c create mode 100644 drivers/nvmem/sunxi-sid.c diff --git a/Documentation/ABI/testing/sysfs-driver-sunxi-sid b/Documentation/ABI/testing/sysfs-driver-sunxi-sid deleted file mode 100644 index ffb9536..0000000 --- a/Documentation/ABI/testing/sysfs-driver-sunxi-sid +++ /dev/null @@ -1,22 +0,0 @@ -What: /sys/devices/*/<our-device>/eeprom -Date: August 2013 -Contact: Oliver Schinagl <oliver@schinagl.nl> -Description: read-only access to the SID (Security-ID) on current - A-series SoC's from Allwinner. Currently supports A10, A10s, A13 - and A20 CPU's. The earlier A1x series of SoCs exports 16 bytes, - whereas the newer A20 SoC exposes 512 bytes split into sections. - Besides the 16 bytes of SID, there's also an SJTAG area, - HDMI-HDCP key and some custom keys. Below a quick overview, for - details see the user manual: - 0x000 128 bit root-key (sun[457]i) - 0x010 128 bit boot-key (sun7i) - 0x020 64 bit security-jtag-key (sun7i) - 0x028 16 bit key configuration (sun7i) - 0x02b 16 bit custom-vendor-key (sun7i) - 0x02c 320 bit low general key (sun7i) - 0x040 32 bit read-control access (sun7i) - 0x064 224 bit low general key (sun7i) - 0x080 2304 bit HDCP-key (sun7i) - 0x1a0 768 bit high general key (sun7i) -Users: any user space application which wants to read the SID on - Allwinner's A-series of CPU's. diff --git a/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt deleted file mode 100644 index fabdf64..0000000 --- a/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt +++ /dev/null @@ -1,17 +0,0 @@ -Allwinner sunxi-sid - -Required properties: -- compatible: "allwinner,sun4i-a10-sid" or "allwinner,sun7i-a20-sid" -- reg: Should contain registers location and length - -Example for sun4i: - sid@01c23800 { - compatible = "allwinner,sun4i-a10-sid"; - reg = <0x01c23800 0x10> - }; - -Example for sun7i: - sid@01c23800 { - compatible = "allwinner,sun7i-a20-sid"; - reg = <0x01c23800 0x200> - }; diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt new file mode 100644 index 0000000..d543ed3 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt @@ -0,0 +1,21 @@ +Allwinner sunxi-sid + +Required properties: +- compatible: "allwinner,sun4i-a10-sid" or "allwinner,sun7i-a20-sid" +- reg: Should contain registers location and length + += Data cells = +Are child nodes of qfprom, bindings of which as described in +bindings/nvmem/nvmem.txt + +Example for sun4i: + sid@01c23800 { + compatible = "allwinner,sun4i-a10-sid"; + reg = <0x01c23800 0x10> + }; + +Example for sun7i: + sid@01c23800 { + compatible = "allwinner,sun7i-a20-sid"; + reg = <0x01c23800 0x200> + }; diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index 9536852f..04f2e1f 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -96,17 +96,4 @@ config EEPROM_DIGSY_MTC_CFG If unsure, say N. -config EEPROM_SUNXI_SID - tristate "Allwinner sunxi security ID support" - depends on ARCH_SUNXI && SYSFS - help - This is a driver for the 'security ID' available on various Allwinner - devices. - - Due to the potential risks involved with changing e-fuses, - this driver is read-only. - - This driver can also be built as a module. If so, the module - will be called sunxi_sid. - endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index 9507aec..fc1e81d 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -4,5 +4,4 @@ obj-$(CONFIG_EEPROM_LEGACY) += eeprom.o obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o -obj-$(CONFIG_EEPROM_SUNXI_SID) += sunxi_sid.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c deleted file mode 100644 index 8385177..0000000 --- a/drivers/misc/eeprom/sunxi_sid.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl> - * http://www.linux-sunxi.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - * - * This driver exposes the Allwinner security ID, efuses exported in byte- - * sized chunks. - */ - -#include <linux/compiler.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/export.h> -#include <linux/fs.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/kobject.h> -#include <linux/module.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> -#include <linux/random.h> -#include <linux/slab.h> -#include <linux/stat.h> -#include <linux/sysfs.h> -#include <linux/types.h> - -#define DRV_NAME "sunxi-sid" - -struct sunxi_sid_data { - void __iomem *reg_base; - unsigned int keysize; -}; - -/* We read the entire key, due to a 32 bit read alignment requirement. Since we - * want to return the requested byte, this results in somewhat slower code and - * uses 4 times more reads as needed but keeps code simpler. Since the SID is - * only very rarely probed, this is not really an issue. - */ -static u8 sunxi_sid_read_byte(const struct sunxi_sid_data *sid_data, - const unsigned int offset) -{ - u32 sid_key; - - if (offset >= sid_data->keysize) - return 0; - - sid_key = ioread32be(sid_data->reg_base + round_down(offset, 4)); - sid_key >>= (offset % 4) * 8; - - return sid_key; /* Only return the last byte */ -} - -static ssize_t sid_read(struct file *fd, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t pos, size_t size) -{ - struct platform_device *pdev; - struct sunxi_sid_data *sid_data; - int i; - - pdev = to_platform_device(kobj_to_dev(kobj)); - sid_data = platform_get_drvdata(pdev); - - if (pos < 0 || pos >= sid_data->keysize) - return 0; - if (size > sid_data->keysize - pos) - size = sid_data->keysize - pos; - - for (i = 0; i < size; i++) - buf[i] = sunxi_sid_read_byte(sid_data, pos + i); - - return i; -} - -static struct bin_attribute sid_bin_attr = { - .attr = { .name = "eeprom", .mode = S_IRUGO, }, - .read = sid_read, -}; - -static int sunxi_sid_remove(struct platform_device *pdev) -{ - device_remove_bin_file(&pdev->dev, &sid_bin_attr); - dev_dbg(&pdev->dev, "driver unloaded\n"); - - return 0; -} - -static const struct of_device_id sunxi_sid_of_match[] = { - { .compatible = "allwinner,sun4i-a10-sid", .data = (void *)16}, - { .compatible = "allwinner,sun7i-a20-sid", .data = (void *)512}, - {/* sentinel */}, -}; -MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); - -static int sunxi_sid_probe(struct platform_device *pdev) -{ - struct sunxi_sid_data *sid_data; - struct resource *res; - const struct of_device_id *of_dev_id; - u8 *entropy; - unsigned int i; - - sid_data = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_sid_data), - GFP_KERNEL); - if (!sid_data) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - sid_data->reg_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(sid_data->reg_base)) - return PTR_ERR(sid_data->reg_base); - - of_dev_id = of_match_device(sunxi_sid_of_match, &pdev->dev); - if (!of_dev_id) - return -ENODEV; - sid_data->keysize = (int)of_dev_id->data; - - platform_set_drvdata(pdev, sid_data); - - sid_bin_attr.size = sid_data->keysize; - if (device_create_bin_file(&pdev->dev, &sid_bin_attr)) - return -ENODEV; - - entropy = kzalloc(sizeof(u8) * sid_data->keysize, GFP_KERNEL); - for (i = 0; i < sid_data->keysize; i++) - entropy[i] = sunxi_sid_read_byte(sid_data, i); - add_device_randomness(entropy, sid_data->keysize); - kfree(entropy); - - dev_dbg(&pdev->dev, "loaded\n"); - - return 0; -} - -static struct platform_driver sunxi_sid_driver = { - .probe = sunxi_sid_probe, - .remove = sunxi_sid_remove, - .driver = { - .name = DRV_NAME, - .of_match_table = sunxi_sid_of_match, - }, -}; -module_platform_driver(sunxi_sid_driver); - -MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>"); -MODULE_DESCRIPTION("Allwinner sunxi security id driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index e665e23..17f1a57 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -22,4 +22,15 @@ config QCOM_QFPROM This driver can also be built as a module. If so, the module will be called nvmem-qfprom. +config NVMEM_SUNXI_SID + tristate "Allwinner SoCs SID support" + depends on ARCH_SUNXI + select REGMAP_MMIO + help + This is a driver for the 'security ID' available on various Allwinner + devices. + + This driver can also be built as a module. If so, the module + will be called eeprom-sunxi-sid. + endif diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile index caea611..cc46791 100644 --- a/drivers/nvmem/Makefile +++ b/drivers/nvmem/Makefile @@ -9,3 +9,5 @@ nvmem_core-y += nvmem-mmio.o # Devices obj-$(CONFIG_QCOM_QFPROM) += nvmem_qfprom.o nvmem_qfprom-y := qfprom.o +obj-$(CONFIG_NVMEM_SUNXI_SID) += nvmem-sunxi-sid.o +nvmem-sunxi-sid-y := sunxi-sid.o diff --git a/drivers/nvmem/sunxi-sid.c b/drivers/nvmem/sunxi-sid.c new file mode 100644 index 0000000..5bfce35 --- /dev/null +++ b/drivers/nvmem/sunxi-sid.c @@ -0,0 +1,64 @@ +/* + * Allwinner sunXi SoCs Security ID support. + * + * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl> + * Copyright (C) 2014 Maxime Ripard <maxime.ripard@free-electrons.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/of.h> +#include "nvmem-mmio.h" + +static bool sunxi_sid_writeable_reg(struct device *dev, unsigned int reg) +{ + return false; +} + +static struct nvmem_config econfig = { + .name = "sunix-sid", + .owner = THIS_MODULE, +}; + +static struct regmap_config sunxi_sid_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .writeable_reg = sunxi_sid_writeable_reg, +}; + +static struct nvmem_mmio_data sunxi_data = { + .nvmem_config = &econfig, + .regmap_config = &sunxi_sid_regmap_config, +}; + +static const struct of_device_id sunxi_sid_of_match[] = { + { .compatible = "allwinner,sun4i-a10-sid", .data = &sunxi_data}, + { .compatible = "allwinner,sun7i-a20-sid", .data = &sunxi_data}, + {/* sentinel */}, +}; +MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); + +static struct platform_driver sunxi_sid_driver = { + .probe = nvmem_mmio_probe, + .remove = nvmem_mmio_remove, + .driver = { + .name = "eeprom-sunxi-sid", + .of_match_table = sunxi_sid_of_match, + }, +}; +module_platform_driver(sunxi_sid_driver); + +MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>"); +MODULE_DESCRIPTION("Allwinner sunxi security id driver"); +MODULE_LICENSE("GPL"); -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: srinivas.kandagatla@linaro.org (Srinivas Kandagatla) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v5 10/11] nvmem: sunxi: Move the SID driver to the nvmem framework Date: Thu, 21 May 2015 17:45:33 +0100 [thread overview] Message-ID: <1432226733-9243-1-git-send-email-srinivas.kandagatla@linaro.org> (raw) In-Reply-To: <1432226535-8640-1-git-send-email-srinivas.kandagatla@linaro.org> From: Maxime Ripard <maxime.ripard@free-electrons.com> Now that we have the nvmem framework, we can consolidate the common driver code. Move the driver to the framework, and hopefully, it will fix the sysfs file creation race. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> [srinivas.kandagatla: Moved to regmap based EEPROM framework] Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> --- Documentation/ABI/testing/sysfs-driver-sunxi-sid | 22 --- .../bindings/misc/allwinner,sunxi-sid.txt | 17 --- .../bindings/nvmem/allwinner,sunxi-sid.txt | 21 +++ drivers/misc/eeprom/Kconfig | 13 -- drivers/misc/eeprom/Makefile | 1 - drivers/misc/eeprom/sunxi_sid.c | 156 --------------------- drivers/nvmem/Kconfig | 11 ++ drivers/nvmem/Makefile | 2 + drivers/nvmem/sunxi-sid.c | 64 +++++++++ 9 files changed, 98 insertions(+), 209 deletions(-) delete mode 100644 Documentation/ABI/testing/sysfs-driver-sunxi-sid delete mode 100644 Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt create mode 100644 Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt delete mode 100644 drivers/misc/eeprom/sunxi_sid.c create mode 100644 drivers/nvmem/sunxi-sid.c diff --git a/Documentation/ABI/testing/sysfs-driver-sunxi-sid b/Documentation/ABI/testing/sysfs-driver-sunxi-sid deleted file mode 100644 index ffb9536..0000000 --- a/Documentation/ABI/testing/sysfs-driver-sunxi-sid +++ /dev/null @@ -1,22 +0,0 @@ -What: /sys/devices/*/<our-device>/eeprom -Date: August 2013 -Contact: Oliver Schinagl <oliver@schinagl.nl> -Description: read-only access to the SID (Security-ID) on current - A-series SoC's from Allwinner. Currently supports A10, A10s, A13 - and A20 CPU's. The earlier A1x series of SoCs exports 16 bytes, - whereas the newer A20 SoC exposes 512 bytes split into sections. - Besides the 16 bytes of SID, there's also an SJTAG area, - HDMI-HDCP key and some custom keys. Below a quick overview, for - details see the user manual: - 0x000 128 bit root-key (sun[457]i) - 0x010 128 bit boot-key (sun7i) - 0x020 64 bit security-jtag-key (sun7i) - 0x028 16 bit key configuration (sun7i) - 0x02b 16 bit custom-vendor-key (sun7i) - 0x02c 320 bit low general key (sun7i) - 0x040 32 bit read-control access (sun7i) - 0x064 224 bit low general key (sun7i) - 0x080 2304 bit HDCP-key (sun7i) - 0x1a0 768 bit high general key (sun7i) -Users: any user space application which wants to read the SID on - Allwinner's A-series of CPU's. diff --git a/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt deleted file mode 100644 index fabdf64..0000000 --- a/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt +++ /dev/null @@ -1,17 +0,0 @@ -Allwinner sunxi-sid - -Required properties: -- compatible: "allwinner,sun4i-a10-sid" or "allwinner,sun7i-a20-sid" -- reg: Should contain registers location and length - -Example for sun4i: - sid at 01c23800 { - compatible = "allwinner,sun4i-a10-sid"; - reg = <0x01c23800 0x10> - }; - -Example for sun7i: - sid at 01c23800 { - compatible = "allwinner,sun7i-a20-sid"; - reg = <0x01c23800 0x200> - }; diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt new file mode 100644 index 0000000..d543ed3 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt @@ -0,0 +1,21 @@ +Allwinner sunxi-sid + +Required properties: +- compatible: "allwinner,sun4i-a10-sid" or "allwinner,sun7i-a20-sid" +- reg: Should contain registers location and length + += Data cells = +Are child nodes of qfprom, bindings of which as described in +bindings/nvmem/nvmem.txt + +Example for sun4i: + sid at 01c23800 { + compatible = "allwinner,sun4i-a10-sid"; + reg = <0x01c23800 0x10> + }; + +Example for sun7i: + sid at 01c23800 { + compatible = "allwinner,sun7i-a20-sid"; + reg = <0x01c23800 0x200> + }; diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index 9536852f..04f2e1f 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -96,17 +96,4 @@ config EEPROM_DIGSY_MTC_CFG If unsure, say N. -config EEPROM_SUNXI_SID - tristate "Allwinner sunxi security ID support" - depends on ARCH_SUNXI && SYSFS - help - This is a driver for the 'security ID' available on various Allwinner - devices. - - Due to the potential risks involved with changing e-fuses, - this driver is read-only. - - This driver can also be built as a module. If so, the module - will be called sunxi_sid. - endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index 9507aec..fc1e81d 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -4,5 +4,4 @@ obj-$(CONFIG_EEPROM_LEGACY) += eeprom.o obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o -obj-$(CONFIG_EEPROM_SUNXI_SID) += sunxi_sid.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c deleted file mode 100644 index 8385177..0000000 --- a/drivers/misc/eeprom/sunxi_sid.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl> - * http://www.linux-sunxi.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - * - * This driver exposes the Allwinner security ID, efuses exported in byte- - * sized chunks. - */ - -#include <linux/compiler.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/export.h> -#include <linux/fs.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/kobject.h> -#include <linux/module.h> -#include <linux/of_device.h> -#include <linux/platform_device.h> -#include <linux/random.h> -#include <linux/slab.h> -#include <linux/stat.h> -#include <linux/sysfs.h> -#include <linux/types.h> - -#define DRV_NAME "sunxi-sid" - -struct sunxi_sid_data { - void __iomem *reg_base; - unsigned int keysize; -}; - -/* We read the entire key, due to a 32 bit read alignment requirement. Since we - * want to return the requested byte, this results in somewhat slower code and - * uses 4 times more reads as needed but keeps code simpler. Since the SID is - * only very rarely probed, this is not really an issue. - */ -static u8 sunxi_sid_read_byte(const struct sunxi_sid_data *sid_data, - const unsigned int offset) -{ - u32 sid_key; - - if (offset >= sid_data->keysize) - return 0; - - sid_key = ioread32be(sid_data->reg_base + round_down(offset, 4)); - sid_key >>= (offset % 4) * 8; - - return sid_key; /* Only return the last byte */ -} - -static ssize_t sid_read(struct file *fd, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t pos, size_t size) -{ - struct platform_device *pdev; - struct sunxi_sid_data *sid_data; - int i; - - pdev = to_platform_device(kobj_to_dev(kobj)); - sid_data = platform_get_drvdata(pdev); - - if (pos < 0 || pos >= sid_data->keysize) - return 0; - if (size > sid_data->keysize - pos) - size = sid_data->keysize - pos; - - for (i = 0; i < size; i++) - buf[i] = sunxi_sid_read_byte(sid_data, pos + i); - - return i; -} - -static struct bin_attribute sid_bin_attr = { - .attr = { .name = "eeprom", .mode = S_IRUGO, }, - .read = sid_read, -}; - -static int sunxi_sid_remove(struct platform_device *pdev) -{ - device_remove_bin_file(&pdev->dev, &sid_bin_attr); - dev_dbg(&pdev->dev, "driver unloaded\n"); - - return 0; -} - -static const struct of_device_id sunxi_sid_of_match[] = { - { .compatible = "allwinner,sun4i-a10-sid", .data = (void *)16}, - { .compatible = "allwinner,sun7i-a20-sid", .data = (void *)512}, - {/* sentinel */}, -}; -MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); - -static int sunxi_sid_probe(struct platform_device *pdev) -{ - struct sunxi_sid_data *sid_data; - struct resource *res; - const struct of_device_id *of_dev_id; - u8 *entropy; - unsigned int i; - - sid_data = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_sid_data), - GFP_KERNEL); - if (!sid_data) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - sid_data->reg_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(sid_data->reg_base)) - return PTR_ERR(sid_data->reg_base); - - of_dev_id = of_match_device(sunxi_sid_of_match, &pdev->dev); - if (!of_dev_id) - return -ENODEV; - sid_data->keysize = (int)of_dev_id->data; - - platform_set_drvdata(pdev, sid_data); - - sid_bin_attr.size = sid_data->keysize; - if (device_create_bin_file(&pdev->dev, &sid_bin_attr)) - return -ENODEV; - - entropy = kzalloc(sizeof(u8) * sid_data->keysize, GFP_KERNEL); - for (i = 0; i < sid_data->keysize; i++) - entropy[i] = sunxi_sid_read_byte(sid_data, i); - add_device_randomness(entropy, sid_data->keysize); - kfree(entropy); - - dev_dbg(&pdev->dev, "loaded\n"); - - return 0; -} - -static struct platform_driver sunxi_sid_driver = { - .probe = sunxi_sid_probe, - .remove = sunxi_sid_remove, - .driver = { - .name = DRV_NAME, - .of_match_table = sunxi_sid_of_match, - }, -}; -module_platform_driver(sunxi_sid_driver); - -MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>"); -MODULE_DESCRIPTION("Allwinner sunxi security id driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index e665e23..17f1a57 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -22,4 +22,15 @@ config QCOM_QFPROM This driver can also be built as a module. If so, the module will be called nvmem-qfprom. +config NVMEM_SUNXI_SID + tristate "Allwinner SoCs SID support" + depends on ARCH_SUNXI + select REGMAP_MMIO + help + This is a driver for the 'security ID' available on various Allwinner + devices. + + This driver can also be built as a module. If so, the module + will be called eeprom-sunxi-sid. + endif diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile index caea611..cc46791 100644 --- a/drivers/nvmem/Makefile +++ b/drivers/nvmem/Makefile @@ -9,3 +9,5 @@ nvmem_core-y += nvmem-mmio.o # Devices obj-$(CONFIG_QCOM_QFPROM) += nvmem_qfprom.o nvmem_qfprom-y := qfprom.o +obj-$(CONFIG_NVMEM_SUNXI_SID) += nvmem-sunxi-sid.o +nvmem-sunxi-sid-y := sunxi-sid.o diff --git a/drivers/nvmem/sunxi-sid.c b/drivers/nvmem/sunxi-sid.c new file mode 100644 index 0000000..5bfce35 --- /dev/null +++ b/drivers/nvmem/sunxi-sid.c @@ -0,0 +1,64 @@ +/* + * Allwinner sunXi SoCs Security ID support. + * + * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl> + * Copyright (C) 2014 Maxime Ripard <maxime.ripard@free-electrons.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/of.h> +#include "nvmem-mmio.h" + +static bool sunxi_sid_writeable_reg(struct device *dev, unsigned int reg) +{ + return false; +} + +static struct nvmem_config econfig = { + .name = "sunix-sid", + .owner = THIS_MODULE, +}; + +static struct regmap_config sunxi_sid_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .writeable_reg = sunxi_sid_writeable_reg, +}; + +static struct nvmem_mmio_data sunxi_data = { + .nvmem_config = &econfig, + .regmap_config = &sunxi_sid_regmap_config, +}; + +static const struct of_device_id sunxi_sid_of_match[] = { + { .compatible = "allwinner,sun4i-a10-sid", .data = &sunxi_data}, + { .compatible = "allwinner,sun7i-a20-sid", .data = &sunxi_data}, + {/* sentinel */}, +}; +MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); + +static struct platform_driver sunxi_sid_driver = { + .probe = nvmem_mmio_probe, + .remove = nvmem_mmio_remove, + .driver = { + .name = "eeprom-sunxi-sid", + .of_match_table = sunxi_sid_of_match, + }, +}; +module_platform_driver(sunxi_sid_driver); + +MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>"); +MODULE_DESCRIPTION("Allwinner sunxi security id driver"); +MODULE_LICENSE("GPL"); -- 1.9.1
next prev parent reply other threads:[~2015-05-21 16:45 UTC|newest] Thread overview: 385+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-02-19 17:07 [RFC PATCH 0/3] Add simple EEPROM Framework via regmap Srinivas Kandagatla 2015-02-19 17:07 ` Srinivas Kandagatla 2015-02-19 17:08 ` [RFC PATCH 1/3] eeprom: Add a simple EEPROM framework Srinivas Kandagatla 2015-02-19 17:08 ` Srinivas Kandagatla 2015-02-19 18:12 ` Andrew Lunn 2015-02-19 18:12 ` Andrew Lunn 2015-02-19 18:12 ` Andrew Lunn 2015-02-20 8:27 ` Srinivas Kandagatla 2015-02-20 8:27 ` Srinivas Kandagatla 2015-02-20 8:27 ` Srinivas Kandagatla 2015-02-20 2:36 ` Stephen Boyd 2015-02-20 2:36 ` Stephen Boyd 2015-02-20 2:36 ` Stephen Boyd 2015-02-20 8:14 ` Srinivas Kandagatla 2015-02-20 8:14 ` Srinivas Kandagatla 2015-02-20 10:24 ` Srinivas Kandagatla 2015-02-20 10:24 ` Srinivas Kandagatla 2015-02-20 10:24 ` Srinivas Kandagatla 2015-02-20 17:21 ` Rob Herring 2015-02-20 17:21 ` Rob Herring 2015-02-20 17:21 ` Rob Herring 2015-02-20 19:25 ` Srinivas Kandagatla 2015-02-20 19:25 ` Srinivas Kandagatla 2015-02-20 19:25 ` Srinivas Kandagatla 2015-02-20 22:01 ` Rob Herring 2015-02-20 22:01 ` Rob Herring 2015-02-20 22:01 ` Rob Herring 2015-02-21 11:31 ` Srinivas Kandagatla 2015-02-21 11:31 ` Srinivas Kandagatla 2015-02-21 11:31 ` Srinivas Kandagatla 2015-02-22 14:34 ` Maxime Ripard 2015-02-22 14:34 ` Maxime Ripard 2015-02-22 14:34 ` Maxime Ripard 2015-02-22 14:32 ` Maxime Ripard 2015-02-22 14:32 ` Maxime Ripard 2015-02-22 14:32 ` Maxime Ripard 2015-02-23 0:57 ` Rob Herring 2015-02-23 0:57 ` Rob Herring 2015-02-23 0:57 ` Rob Herring 2015-02-23 23:11 ` Stephen Boyd 2015-02-23 23:11 ` Stephen Boyd 2015-02-23 23:11 ` Stephen Boyd 2015-02-24 7:08 ` Srinivas Kandagatla 2015-02-24 7:08 ` Srinivas Kandagatla 2015-02-24 7:08 ` Srinivas Kandagatla 2015-02-24 9:21 ` Maxime Ripard 2015-02-24 9:21 ` Maxime Ripard 2015-02-24 9:21 ` Maxime Ripard 2015-02-25 1:30 ` Stephen Boyd 2015-02-25 1:30 ` Stephen Boyd 2015-02-25 1:30 ` Stephen Boyd 2015-02-26 9:16 ` Srinivas Kandagatla 2015-02-26 9:16 ` Srinivas Kandagatla 2015-02-26 9:16 ` Srinivas Kandagatla 2015-02-26 13:21 ` Maxime Ripard 2015-02-26 13:21 ` Maxime Ripard 2015-02-26 13:21 ` Maxime Ripard 2015-02-26 14:56 ` Srinivas Kandagatla 2015-02-26 14:56 ` Srinivas Kandagatla 2015-02-26 14:56 ` Srinivas Kandagatla 2015-02-26 13:18 ` Maxime Ripard 2015-02-26 13:18 ` Maxime Ripard 2015-02-26 13:18 ` Maxime Ripard 2015-02-23 9:15 ` Sascha Hauer 2015-02-23 9:15 ` Sascha Hauer 2015-02-23 9:15 ` Sascha Hauer 2015-02-20 17:46 ` Russell King - ARM Linux 2015-02-20 17:46 ` Russell King - ARM Linux 2015-02-20 17:46 ` Russell King - ARM Linux 2015-02-20 19:00 ` Srinivas Kandagatla 2015-02-20 19:00 ` Srinivas Kandagatla 2015-02-23 15:04 ` Mark Brown 2015-02-23 15:04 ` Mark Brown 2015-02-23 15:04 ` Mark Brown 2015-02-23 15:38 ` Srinivas Kandagatla 2015-02-23 15:38 ` Srinivas Kandagatla 2015-02-23 15:38 ` Srinivas Kandagatla 2015-02-19 17:08 ` [RFC PATCH 2/3] eeprom: sunxi: Move the SID driver to the eeprom framework Srinivas Kandagatla 2015-02-19 17:08 ` Srinivas Kandagatla 2015-02-20 17:47 ` Russell King - ARM Linux 2015-02-20 17:47 ` Russell King - ARM Linux 2015-02-20 17:47 ` Russell King - ARM Linux 2015-02-19 17:08 ` [RFC PATCH 3/3] eeprom: qfprom: Add Qualcomm QFPROM support Srinivas Kandagatla 2015-02-19 17:08 ` Srinivas Kandagatla 2015-02-20 17:48 ` Russell King - ARM Linux 2015-02-20 17:48 ` Russell King - ARM Linux 2015-03-05 9:44 ` [PATCH v1 0/6] Add simple EEPROM Framework via regmap Srinivas Kandagatla 2015-03-05 9:44 ` Srinivas Kandagatla 2015-03-05 9:45 ` [PATCH v1 1/6] eeprom: Add a simple EEPROM framework for eeprom providers Srinivas Kandagatla 2015-03-05 9:45 ` Srinivas Kandagatla 2015-03-05 10:23 ` Paul Bolle 2015-03-05 10:23 ` Paul Bolle 2015-03-05 10:35 ` Srinivas Kandagatla 2015-03-05 10:35 ` Srinivas Kandagatla 2015-03-05 10:35 ` Srinivas Kandagatla 2015-03-07 15:00 ` Mark Brown 2015-03-07 15:00 ` Mark Brown 2015-03-07 15:00 ` Mark Brown 2015-03-09 7:13 ` Srinivas Kandagatla 2015-03-09 7:13 ` Srinivas Kandagatla 2015-03-09 7:13 ` Srinivas Kandagatla 2015-03-05 9:45 ` [PATCH v1 2/6] eeprom: Add a simple EEPROM framework for eeprom consumers Srinivas Kandagatla 2015-03-05 9:45 ` Srinivas Kandagatla 2015-03-05 9:46 ` [PATCH v1 3/6] eeprom: Add bindings for simple eeprom framework Srinivas Kandagatla 2015-03-05 9:46 ` Srinivas Kandagatla 2015-03-05 20:11 ` Rob Herring 2015-03-05 20:11 ` Rob Herring 2015-03-05 20:11 ` Rob Herring 2015-03-05 22:34 ` Srinivas Kandagatla 2015-03-05 22:34 ` Srinivas Kandagatla 2015-03-05 22:34 ` Srinivas Kandagatla 2015-03-08 22:19 ` Rob Herring 2015-03-05 9:46 ` [PATCH v1 4/6] eeprom: sunxi: Move the SID driver to the " Srinivas Kandagatla 2015-03-05 9:46 ` Srinivas Kandagatla 2015-03-05 10:15 ` Paul Bolle 2015-03-05 10:15 ` Paul Bolle 2015-03-05 10:15 ` Paul Bolle 2015-03-05 18:36 ` Maxime Ripard 2015-03-05 18:36 ` Maxime Ripard 2015-03-05 18:36 ` Maxime Ripard 2015-03-05 9:46 ` [PATCH v1 5/6] eeprom: qfprom: Add Qualcomm QFPROM support Srinivas Kandagatla 2015-03-05 9:46 ` Srinivas Kandagatla 2015-03-05 10:02 ` Paul Bolle 2015-03-05 10:02 ` Paul Bolle 2015-03-05 10:02 ` Paul Bolle 2015-03-05 10:10 ` Srinivas Kandagatla 2015-03-05 10:10 ` Srinivas Kandagatla 2015-03-05 10:10 ` Srinivas Kandagatla 2015-03-05 9:46 ` [PATCH v1 6/6] eeprom: Add to MAINTAINERS for eeprom framework Srinivas Kandagatla 2015-03-05 9:46 ` Srinivas Kandagatla 2015-03-13 9:49 ` [PATCH v2 0/7] Add simple EEPROM Framework via regmap Srinivas Kandagatla 2015-03-13 9:49 ` Srinivas Kandagatla 2015-03-13 9:50 ` [PATCH v2 2/7] eeprom: Add a simple EEPROM framework for eeprom consumers Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla 2015-03-13 9:50 ` [PATCH v2 3/7] eeprom: Add bindings for simple eeprom framework Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla 2015-03-13 9:50 ` [PATCH v2 4/7] eeprom: sunxi: Move the SID driver to the " Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla [not found] ` <1426240157-2383-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-03-13 9:50 ` [PATCH v2 1/7] eeprom: Add a simple EEPROM framework for eeprom providers Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla [not found] ` <1426240214-2434-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-03-23 21:09 ` Mark Brown 2015-03-23 21:09 ` Mark Brown 2015-03-23 21:09 ` Mark Brown [not found] ` <20150323210918.GS14954-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> 2015-03-23 22:05 ` Srinivas Kandagatla 2015-03-23 22:05 ` Srinivas Kandagatla 2015-03-23 22:05 ` Srinivas Kandagatla [not found] ` <55108E2B.7050305-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-03-24 9:18 ` Srinivas Kandagatla 2015-03-24 9:18 ` Srinivas Kandagatla 2015-03-24 9:18 ` Srinivas Kandagatla 2015-03-24 17:23 ` Mark Brown 2015-03-24 17:23 ` Mark Brown 2015-03-24 18:34 ` Srinivas Kandagatla 2015-03-24 18:34 ` Srinivas Kandagatla 2015-03-24 19:02 ` Mark Brown 2015-03-24 19:02 ` Mark Brown 2015-03-24 19:26 ` Srinivas Kandagatla 2015-03-24 19:26 ` Srinivas Kandagatla 2015-03-24 20:55 ` Mark Brown 2015-03-24 20:55 ` Mark Brown 2015-03-13 9:50 ` [PATCH v2 5/7] eeprom: qfprom: Add Qualcomm QFPROM support Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla 2015-03-13 9:50 ` [PATCH v2 6/7] eeprom: qfprom: Add bindings for qfprom Srinivas Kandagatla 2015-03-13 9:50 ` Srinivas Kandagatla 2015-03-13 9:51 ` [PATCH v2 7/7] eeprom: Add to MAINTAINERS for eeprom framework Srinivas Kandagatla 2015-03-13 9:51 ` Srinivas Kandagatla 2015-03-24 22:28 ` [PATCH v3 0/9] Add simple EEPROM Framework via regmap Srinivas Kandagatla 2015-03-24 22:28 ` Srinivas Kandagatla 2015-03-24 22:29 ` [PATCH v3 1/9] regmap: Introduce regmap_get_max_register Srinivas Kandagatla 2015-03-24 22:29 ` Srinivas Kandagatla 2015-03-24 22:36 ` Mark Brown 2015-03-24 22:36 ` Mark Brown 2015-03-24 23:05 ` Srinivas Kandagatla 2015-03-24 23:05 ` Srinivas Kandagatla 2015-03-24 23:23 ` Joe Perches 2015-03-24 23:23 ` Joe Perches [not found] ` <1427236116-18531-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-03-24 22:30 ` [PATCH v3 2/9] regmap: Introduce regmap_get_reg_stride Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-24 22:37 ` Mark Brown 2015-03-24 22:37 ` Mark Brown [not found] ` <20150324223745.GC28997-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> 2015-03-24 23:07 ` Srinivas Kandagatla 2015-03-24 23:07 ` Srinivas Kandagatla 2015-03-24 23:07 ` Srinivas Kandagatla 2015-03-24 22:30 ` [PATCH v3 7/9] eeprom: qfprom: Add Qualcomm QFPROM support Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-24 22:30 ` [PATCH v3 3/9] eeprom: Add a simple EEPROM framework for eeprom providers Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-24 22:53 ` Mark Brown 2015-03-24 22:53 ` Mark Brown [not found] ` <20150324225317.GD28997-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> 2015-03-26 16:23 ` Srinivas Kandagatla 2015-03-26 16:23 ` Srinivas Kandagatla 2015-03-26 16:23 ` Srinivas Kandagatla 2015-03-24 22:30 ` [PATCH v3 4/9] eeprom: Add a simple EEPROM framework for eeprom consumers Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla [not found] ` <1427236219-18709-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-03-25 7:16 ` Sascha Hauer 2015-03-25 7:16 ` Sascha Hauer 2015-03-25 7:16 ` Sascha Hauer 2015-03-25 12:29 ` Srinivas Kandagatla 2015-03-25 12:29 ` Srinivas Kandagatla 2015-03-24 22:30 ` [PATCH v3 5/9] eeprom: Add bindings for simple eeprom framework Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-25 7:10 ` Sascha Hauer 2015-03-25 7:10 ` Sascha Hauer 2015-03-25 7:10 ` Sascha Hauer 2015-03-25 16:40 ` Maxime Ripard 2015-03-25 16:40 ` Maxime Ripard 2015-03-24 22:30 ` [PATCH v3 6/9] eeprom: sunxi: Move the SID driver to the " Srinivas Kandagatla 2015-03-24 22:30 ` Srinivas Kandagatla 2015-03-24 22:31 ` [PATCH v3 8/9] eeprom: qfprom: Add bindings for qfprom Srinivas Kandagatla 2015-03-24 22:31 ` Srinivas Kandagatla 2015-03-25 0:28 ` Bjorn Andersson 2015-03-25 0:28 ` Bjorn Andersson 2015-03-25 0:28 ` Bjorn Andersson 2015-03-24 22:31 ` [PATCH v3 9/9] eeprom: Add to MAINTAINERS for eeprom framework Srinivas Kandagatla 2015-03-24 22:31 ` Srinivas Kandagatla 2015-03-30 21:54 ` [PATCH v4 00/10] Add simple EEPROM Framework via regmap Srinivas Kandagatla 2015-03-30 21:54 ` Srinivas Kandagatla 2015-03-30 21:56 ` [PATCH v4 01/10] regmap: Introduce regmap_get_max_register Srinivas Kandagatla 2015-03-30 21:56 ` Srinivas Kandagatla 2015-05-04 12:05 ` Mark Brown 2015-05-04 12:05 ` Mark Brown 2015-03-30 21:57 ` [PATCH v4 02/10] regmap: Introduce regmap_get_reg_stride Srinivas Kandagatla 2015-03-30 21:57 ` Srinivas Kandagatla 2015-03-30 21:57 ` [PATCH v4 03/10] eeprom: Add a simple EEPROM framework for eeprom providers Srinivas Kandagatla 2015-03-30 21:57 ` Srinivas Kandagatla [not found] ` <1427752492-17039-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-03-30 21:57 ` [PATCH v4 04/10] eeprom: Add a simple EEPROM framework for eeprom consumers Srinivas Kandagatla 2015-03-30 21:57 ` Srinivas Kandagatla 2015-03-30 21:57 ` Srinivas Kandagatla 2015-04-07 18:45 ` Stephen Boyd 2015-04-07 18:45 ` Stephen Boyd 2015-04-07 20:09 ` Srinivas Kandagatla 2015-04-07 20:09 ` Srinivas Kandagatla 2015-04-09 14:45 ` Stephen Boyd 2015-04-09 14:45 ` Stephen Boyd 2015-04-10 11:45 ` Maxime Ripard 2015-04-10 11:45 ` Maxime Ripard [not found] ` <20150409144522.GB9663-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-05-05 11:46 ` Srinivas Kandagatla 2015-05-05 11:46 ` Srinivas Kandagatla 2015-05-05 11:46 ` Srinivas Kandagatla 2015-05-08 5:23 ` Sascha Hauer 2015-05-08 5:23 ` Sascha Hauer 2015-05-06 17:28 ` Mark Brown 2015-05-06 17:28 ` Mark Brown 2015-03-30 21:57 ` [PATCH v4 05/10] eeprom: Add bindings for simple eeprom framework Srinivas Kandagatla 2015-03-30 21:57 ` Srinivas Kandagatla 2015-03-30 21:57 ` Srinivas Kandagatla [not found] ` <1427752679-17261-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-04-06 13:32 ` Matt Porter 2015-04-06 13:32 ` Matt Porter 2015-04-06 13:32 ` Matt Porter 2015-04-06 14:11 ` Rob Herring 2015-04-06 14:11 ` Rob Herring 2015-04-06 14:11 ` Rob Herring [not found] ` <CAL_Jsq++9pyJMLXssgyz2WRU4e7ikT_6FwzWMo1fKS82FJvEyg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2015-04-06 15:04 ` Matt Porter 2015-04-06 15:04 ` Matt Porter 2015-04-06 15:04 ` Matt Porter 2015-04-07 17:35 ` Srinivas Kandagatla 2015-04-07 17:35 ` Srinivas Kandagatla 2015-04-07 17:35 ` Srinivas Kandagatla 2015-04-07 17:46 ` Mark Brown 2015-04-07 17:46 ` Mark Brown 2015-04-07 17:46 ` Mark Brown 2015-04-07 18:03 ` Srinivas Kandagatla 2015-04-07 18:03 ` Srinivas Kandagatla 2015-04-07 18:03 ` Srinivas Kandagatla 2015-04-07 19:46 ` Matt Porter 2015-04-07 19:46 ` Matt Porter 2015-04-07 19:46 ` Matt Porter 2015-04-08 9:24 ` Srinivas Kandagatla 2015-04-08 9:24 ` Srinivas Kandagatla 2015-04-08 9:24 ` Srinivas Kandagatla 2015-03-30 21:58 ` [PATCH v4 06/10] eeprom: Add simple eeprom-mmio consumer helper functions Srinivas Kandagatla 2015-03-30 21:58 ` Srinivas Kandagatla 2015-03-30 21:58 ` Srinivas Kandagatla 2015-03-30 21:58 ` [PATCH v4 07/10] eeprom: qfprom: Add Qualcomm QFPROM support Srinivas Kandagatla 2015-03-30 21:58 ` Srinivas Kandagatla 2015-03-30 21:58 ` [PATCH v4 08/10] eeprom: qfprom: Add bindings for qfprom Srinivas Kandagatla 2015-03-30 21:58 ` Srinivas Kandagatla 2015-03-30 21:58 ` [PATCH v4 09/10] eeprom: sunxi: Move the SID driver to the eeprom framework Srinivas Kandagatla 2015-03-30 21:58 ` Srinivas Kandagatla 2015-03-30 21:58 ` [PATCH v4 10/10] eeprom: Add to MAINTAINERS for " Srinivas Kandagatla 2015-03-30 21:58 ` Srinivas Kandagatla 2015-05-21 16:42 ` [PATCH v5 00/11] Add simple NVMEM Framework via regmap Srinivas Kandagatla 2015-05-21 16:42 ` Srinivas Kandagatla 2015-05-21 16:42 ` [PATCH v5 01/11] regmap: Introduce regmap_get_max_register Srinivas Kandagatla 2015-05-21 16:42 ` Srinivas Kandagatla 2015-05-22 11:18 ` Mark Brown 2015-05-22 11:18 ` Mark Brown 2015-05-21 16:42 ` [PATCH v5 02/11] regmap: Introduce regmap_get_reg_stride Srinivas Kandagatla 2015-05-21 16:42 ` Srinivas Kandagatla 2015-05-22 11:19 ` Mark Brown 2015-05-22 11:19 ` Mark Brown 2015-05-21 16:43 ` [PATCH v5 03/11] nvmem: Add a simple NVMEM framework for nvmem providers Srinivas Kandagatla 2015-05-21 16:43 ` Srinivas Kandagatla [not found] ` <1432226583-8775-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-06-16 22:43 ` Stephen Boyd 2015-06-16 22:43 ` Stephen Boyd 2015-06-16 22:43 ` Stephen Boyd [not found] ` <5580A678.4080304-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-06-18 12:46 ` Srinivas Kandagatla 2015-06-18 12:46 ` Srinivas Kandagatla 2015-06-18 12:46 ` Srinivas Kandagatla [not found] ` <5582BDAE.5040008-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-06-24 0:24 ` Stephen Boyd 2015-06-24 0:24 ` Stephen Boyd 2015-06-24 0:24 ` Stephen Boyd 2015-06-24 10:05 ` Srinivas Kandagatla 2015-06-24 10:05 ` Srinivas Kandagatla 2015-05-21 16:43 ` [PATCH v5 05/11] nvmem: Add nvmem_device based consumer apis Srinivas Kandagatla 2015-05-21 16:43 ` Srinivas Kandagatla 2015-06-16 22:49 ` Stephen Boyd 2015-06-16 22:49 ` Stephen Boyd [not found] ` <5580A7EA.2090909-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-06-18 12:57 ` Srinivas Kandagatla 2015-06-18 12:57 ` Srinivas Kandagatla 2015-06-18 12:57 ` Srinivas Kandagatla 2015-05-21 16:44 ` [PATCH v5 06/11] nvmem: Add bindings for simple nvmem framework Srinivas Kandagatla 2015-05-21 16:44 ` Srinivas Kandagatla 2015-06-16 22:53 ` Stephen Boyd 2015-06-16 22:53 ` Stephen Boyd [not found] ` <5580A900.9070902-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-06-18 13:01 ` Srinivas Kandagatla 2015-06-18 13:01 ` Srinivas Kandagatla 2015-06-18 13:01 ` Srinivas Kandagatla [not found] ` <1432226652-8947-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-06-19 10:36 ` maitysanchayan-Re5JQEeQqe8AvxtiuMwx3w 2015-06-19 10:36 ` maitysanchayan at gmail.com 2015-06-19 10:36 ` maitysanchayan 2015-06-19 10:59 ` Srinivas Kandagatla 2015-06-19 10:59 ` Srinivas Kandagatla 2015-06-19 10:59 ` Srinivas Kandagatla 2015-05-21 16:44 ` [PATCH v5 08/11] nvmem: qfprom: Add Qualcomm QFPROM support Srinivas Kandagatla 2015-05-21 16:44 ` Srinivas Kandagatla 2015-06-16 23:00 ` Stephen Boyd 2015-06-16 23:00 ` Stephen Boyd [not found] ` <5580AA9B.7040001-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-06-18 13:22 ` Srinivas Kandagatla 2015-06-18 13:22 ` Srinivas Kandagatla 2015-06-18 13:22 ` Srinivas Kandagatla [not found] ` <1432226535-8640-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-05-21 16:43 ` [PATCH v5 04/11] nvmem: Add a simple NVMEM framework for consumers Srinivas Kandagatla 2015-05-21 16:43 ` Srinivas Kandagatla 2015-05-21 16:43 ` Srinivas Kandagatla 2015-06-16 22:29 ` Stephen Boyd 2015-06-16 22:29 ` Stephen Boyd 2015-06-17 8:00 ` Sascha Hauer 2015-06-17 8:00 ` Sascha Hauer 2015-06-18 12:56 ` Srinivas Kandagatla 2015-06-18 12:56 ` Srinivas Kandagatla 2015-05-21 16:44 ` [PATCH v5 07/11] nvmem: Add simple nvmem-mmio consumer helper functions Srinivas Kandagatla 2015-05-21 16:44 ` Srinivas Kandagatla 2015-05-21 16:44 ` Srinivas Kandagatla [not found] ` <1432226665-8994-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-06-16 22:58 ` Stephen Boyd 2015-06-16 22:58 ` Stephen Boyd 2015-06-16 22:58 ` Stephen Boyd [not found] ` <5580AA05.90709-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> 2015-06-18 13:08 ` Srinivas Kandagatla 2015-06-18 13:08 ` Srinivas Kandagatla 2015-06-18 13:08 ` Srinivas Kandagatla 2015-05-21 16:44 ` [PATCH v5 09/11] nvmem: qfprom: Add bindings for qfprom Srinivas Kandagatla 2015-05-21 16:44 ` Srinivas Kandagatla 2015-05-21 16:44 ` Srinivas Kandagatla [not found] ` <1432226685-9081-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-06-16 23:01 ` Stephen Boyd 2015-06-16 23:01 ` Stephen Boyd 2015-06-16 23:01 ` Stephen Boyd 2015-05-21 16:45 ` [PATCH v5 11/11] nvmem: Add to MAINTAINERS for nvmem framework Srinivas Kandagatla 2015-05-21 16:45 ` Srinivas Kandagatla 2015-05-21 16:45 ` Srinivas Kandagatla 2015-05-21 16:45 ` Srinivas Kandagatla [this message] 2015-05-21 16:45 ` [PATCH v5 10/11] nvmem: sunxi: Move the SID driver to the " Srinivas Kandagatla [not found] ` <1432226733-9243-1-git-send-email-srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-06-16 23:04 ` Stephen Boyd 2015-06-16 23:04 ` Stephen Boyd 2015-06-16 23:04 ` Stephen Boyd 2015-06-18 13:09 ` Srinivas Kandagatla 2015-06-18 13:09 ` Srinivas Kandagatla 2015-05-25 16:51 ` [PATCH v5 00/11] Add simple NVMEM Framework via regmap Pantelis Antoniou 2015-05-25 16:51 ` Pantelis Antoniou 2015-05-26 9:12 ` Srinivas Kandagatla 2015-05-26 9:12 ` Srinivas Kandagatla 2015-05-26 9:12 ` Srinivas Kandagatla [not found] ` <556438FF.7020105-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2015-05-26 17:54 ` Pantelis Antoniou 2015-05-26 17:54 ` Pantelis Antoniou 2015-05-26 17:54 ` Pantelis Antoniou 2015-05-29 1:20 ` Dan Williams 2015-05-29 1:20 ` Dan Williams 2015-05-29 1:20 ` Dan Williams [not found] ` <CAA9_cmetqnqTQPCd8ya5AJPKQw8ary8CwsE6TUv=f57O=_MH5w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2015-05-29 7:09 ` Srinivas Kandagatla 2015-05-29 7:09 ` Srinivas Kandagatla 2015-05-29 7:09 ` Srinivas Kandagatla 2015-05-29 21:44 ` Dan Williams 2015-05-29 21:44 ` Dan Williams 2015-05-29 21:44 ` Dan Williams
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