diff options
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/Kconfig | 20 | ||||
| -rw-r--r-- | drivers/nvmem/Makefile | 4 | ||||
| -rw-r--r-- | drivers/nvmem/core.c | 4 | ||||
| -rw-r--r-- | drivers/nvmem/lpc18xx_eeprom.c | 330 | ||||
| -rw-r--r-- | drivers/nvmem/mtk-efuse.c | 89 | ||||
| -rw-r--r-- | drivers/nvmem/rockchip-efuse.c | 90 | ||||
| -rw-r--r-- | drivers/nvmem/sunxi_sid.c | 9 |
7 files changed, 491 insertions, 55 deletions
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index bc4ea585b42e..5bd18cc1a69c 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -25,6 +25,15 @@ config NVMEM_IMX_OCOTP This driver can also be built as a module. If so, the module will be called nvmem-imx-ocotp. +config NVMEM_LPC18XX_EEPROM + tristate "NXP LPC18XX EEPROM Memory Support" + depends on ARCH_LPC18XX || COMPILE_TEST + help + Say Y here to include support for NXP LPC18xx EEPROM memory found in + NXP LPC185x/3x and LPC435x/3x/2x/1x devices. + To compile this driver as a module, choose M here: the module + will be called nvmem_lpc18xx_eeprom. + config NVMEM_MXS_OCOTP tristate "Freescale MXS On-Chip OTP Memory Support" depends on ARCH_MXS || COMPILE_TEST @@ -36,6 +45,17 @@ config NVMEM_MXS_OCOTP This driver can also be built as a module. If so, the module will be called nvmem-mxs-ocotp. +config MTK_EFUSE + tristate "Mediatek SoCs EFUSE support" + depends on ARCH_MEDIATEK || COMPILE_TEST + select REGMAP_MMIO + help + This is a driver to access hardware related data like sensor + calibration, HDMI impedance etc. + + This driver can also be built as a module. If so, the module + will be called efuse-mtk. + config QCOM_QFPROM tristate "QCOM QFPROM Support" depends on ARCH_QCOM || COMPILE_TEST diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile index 95dde3f8f085..45ab1ae08fa9 100644 --- a/drivers/nvmem/Makefile +++ b/drivers/nvmem/Makefile @@ -8,8 +8,12 @@ nvmem_core-y := core.o # Devices obj-$(CONFIG_NVMEM_IMX_OCOTP) += nvmem-imx-ocotp.o nvmem-imx-ocotp-y := imx-ocotp.o +obj-$(CONFIG_NVMEM_LPC18XX_EEPROM) += nvmem_lpc18xx_eeprom.o +nvmem_lpc18xx_eeprom-y := lpc18xx_eeprom.o obj-$(CONFIG_NVMEM_MXS_OCOTP) += nvmem-mxs-ocotp.o nvmem-mxs-ocotp-y := mxs-ocotp.o +obj-$(CONFIG_MTK_EFUSE) += nvmem_mtk-efuse.o +nvmem_mtk-efuse-y := mtk-efuse.o obj-$(CONFIG_QCOM_QFPROM) += nvmem_qfprom.o nvmem_qfprom-y := qfprom.o obj-$(CONFIG_ROCKCHIP_EFUSE) += nvmem_rockchip_efuse.o diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 9d11d9837312..de14fae6f7f6 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -294,9 +294,11 @@ static int nvmem_add_cells(struct nvmem_device *nvmem, return 0; err: - while (--i) + while (i--) nvmem_cell_drop(cells[i]); + kfree(cells); + return rval; } diff --git a/drivers/nvmem/lpc18xx_eeprom.c b/drivers/nvmem/lpc18xx_eeprom.c new file mode 100644 index 000000000000..878fce789341 --- /dev/null +++ b/drivers/nvmem/lpc18xx_eeprom.c @@ -0,0 +1,330 @@ +/* + * NXP LPC18xx/LPC43xx EEPROM memory NVMEM driver + * + * Copyright (c) 2015 Ariel D'Alessandro <ariel@vanguardiasur.com> + * + * 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. + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/nvmem-provider.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/reset.h> + +/* Registers */ +#define LPC18XX_EEPROM_AUTOPROG 0x00c +#define LPC18XX_EEPROM_AUTOPROG_WORD 0x1 + +#define LPC18XX_EEPROM_CLKDIV 0x014 + +#define LPC18XX_EEPROM_PWRDWN 0x018 +#define LPC18XX_EEPROM_PWRDWN_NO 0x0 +#define LPC18XX_EEPROM_PWRDWN_YES 0x1 + +#define LPC18XX_EEPROM_INTSTAT 0xfe0 +#define LPC18XX_EEPROM_INTSTAT_END_OF_PROG BIT(2) + +#define LPC18XX_EEPROM_INTSTATCLR 0xfe8 +#define LPC18XX_EEPROM_INTSTATCLR_PROG_CLR_ST BIT(2) + +/* Fixed page size (bytes) */ +#define LPC18XX_EEPROM_PAGE_SIZE 0x80 + +/* EEPROM device requires a ~1500 kHz clock (min 800 kHz, max 1600 kHz) */ +#define LPC18XX_EEPROM_CLOCK_HZ 1500000 + +/* EEPROM requires 3 ms of erase/program time between each writing */ +#define LPC18XX_EEPROM_PROGRAM_TIME 3 + +struct lpc18xx_eeprom_dev { + struct clk *clk; + void __iomem *reg_base; + void __iomem *mem_base; + struct nvmem_device *nvmem; + unsigned reg_bytes; + unsigned val_bytes; +}; + +static struct regmap_config lpc18xx_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, +}; + +static inline void lpc18xx_eeprom_writel(struct lpc18xx_eeprom_dev *eeprom, + u32 reg, u32 val) +{ + writel(val, eeprom->reg_base + reg); +} + +static inline u32 lpc18xx_eeprom_readl(struct lpc18xx_eeprom_dev *eeprom, + u32 reg) +{ + return readl(eeprom->reg_base + reg); +} + +static int lpc18xx_eeprom_busywait_until_prog(struct lpc18xx_eeprom_dev *eeprom) +{ + unsigned long end; + u32 val; + + /* Wait until EEPROM program operation has finished */ + end = jiffies + msecs_to_jiffies(LPC18XX_EEPROM_PROGRAM_TIME * 10); + + while (time_is_after_jiffies(end)) { + val = lpc18xx_eeprom_readl(eeprom, LPC18XX_EEPROM_INTSTAT); + + if (val & LPC18XX_EEPROM_INTSTAT_END_OF_PROG) { + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_INTSTATCLR, + LPC18XX_EEPROM_INTSTATCLR_PROG_CLR_ST); + return 0; + } + + usleep_range(LPC18XX_EEPROM_PROGRAM_TIME * USEC_PER_MSEC, + (LPC18XX_EEPROM_PROGRAM_TIME + 1) * USEC_PER_MSEC); + } + + return -ETIMEDOUT; +} + +static int lpc18xx_eeprom_gather_write(void *context, const void *reg, + size_t reg_size, const void *val, + size_t val_size) +{ + struct lpc18xx_eeprom_dev *eeprom = context; + unsigned int offset = *(u32 *)reg; + int ret; + + if (offset % lpc18xx_regmap_config.reg_stride) + return -EINVAL; + + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, + LPC18XX_EEPROM_PWRDWN_NO); + + /* Wait 100 us while the EEPROM wakes up */ + usleep_range(100, 200); + + while (val_size) { + writel(*(u32 *)val, eeprom->mem_base + offset); + ret = lpc18xx_eeprom_busywait_until_prog(eeprom); + if (ret < 0) + return ret; + + val_size -= eeprom->val_bytes; + val += eeprom->val_bytes; + offset += eeprom->val_bytes; + } + + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, + LPC18XX_EEPROM_PWRDWN_YES); + + return 0; +} + +static int lpc18xx_eeprom_write(void *context, const void *data, size_t count) +{ + struct lpc18xx_eeprom_dev *eeprom = context; + unsigned int offset = eeprom->reg_bytes; + + if (count <= offset) + return -EINVAL; + + return lpc18xx_eeprom_gather_write(context, data, eeprom->reg_bytes, + data + offset, count - offset); +} + +static int lpc18xx_eeprom_read(void *context, const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + struct lpc18xx_eeprom_dev *eeprom = context; + unsigned int offset = *(u32 *)reg; + + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, + LPC18XX_EEPROM_PWRDWN_NO); + + /* Wait 100 us while the EEPROM wakes up */ + usleep_range(100, 200); + + while (val_size) { + *(u32 *)val = readl(eeprom->mem_base + offset); + val_size -= eeprom->val_bytes; + val += eeprom->val_bytes; + offset += eeprom->val_bytes; + } + + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, + LPC18XX_EEPROM_PWRDWN_YES); + + return 0; +} + +static struct regmap_bus lpc18xx_eeprom_bus = { + .write = lpc18xx_eeprom_write, + .gather_write = lpc18xx_eeprom_gather_write, + .read = lpc18xx_eeprom_read, + .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, + .val_format_endian_default = REGMAP_ENDIAN_NATIVE, +}; + +static bool lpc18xx_eeprom_writeable_reg(struct device *dev, unsigned int reg) +{ + /* + * The last page contains the EEPROM initialization data and is not + * writable. + */ + return reg <= lpc18xx_regmap_config.max_register - + LPC18XX_EEPROM_PAGE_SIZE; +} + +static bool lpc18xx_eeprom_readable_reg(struct device *dev, unsigned int reg) +{ + return reg <= lpc18xx_regmap_config.max_register; +} + +static struct nvmem_config lpc18xx_nvmem_config = { + .name = "lpc18xx-eeprom", + .owner = THIS_MODULE, +}; + +static int lpc18xx_eeprom_probe(struct platform_device *pdev) +{ + struct lpc18xx_eeprom_dev *eeprom; + struct device *dev = &pdev->dev; + struct reset_control *rst; + unsigned long clk_rate; + struct regmap *regmap; + struct resource *res; + int ret; + + eeprom = devm_kzalloc(dev, sizeof(*eeprom), GFP_KERNEL); + if (!eeprom) + return -ENOMEM; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "reg"); + eeprom->reg_base = devm_ioremap_resource(dev, res); + if (IS_ERR(eeprom->reg_base)) + return PTR_ERR(eeprom->reg_base); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem"); + eeprom->mem_base = devm_ioremap_resource(dev, res); + if (IS_ERR(eeprom->mem_base)) + return PTR_ERR(eeprom->mem_base); + + eeprom->clk = devm_clk_get(&pdev->dev, "eeprom"); + if (IS_ERR(eeprom->clk)) { + dev_err(&pdev->dev, "failed to get eeprom clock\n"); + return PTR_ERR(eeprom->clk); + } + + ret = clk_prepare_enable(eeprom->clk); + if (ret < 0) { + dev_err(dev, "failed to prepare/enable eeprom clk: %d\n", ret); + return ret; + } + + rst = devm_reset_control_get(dev, NULL); + if (IS_ERR(rst)) { + dev_err(dev, "failed to get reset: %ld\n", PTR_ERR(rst)); + ret = PTR_ERR(rst); + goto err_clk; + } + + ret = reset_control_assert(rst); + if (ret < 0) { + dev_err(dev, "failed to assert reset: %d\n", ret); + goto err_clk; + } + + eeprom->val_bytes = lpc18xx_regmap_config.val_bits / BITS_PER_BYTE; + eeprom->reg_bytes = lpc18xx_regmap_config.reg_bits / BITS_PER_BYTE; + + /* + * Clock rate is generated by dividing the system bus clock by the + * division factor, contained in the divider register (minus 1 encoded). + */ + clk_rate = clk_get_rate(eeprom->clk); + clk_rate = DIV_ROUND_UP(clk_rate, LPC18XX_EEPROM_CLOCK_HZ) - 1; + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_CLKDIV, clk_rate); + + /* + * Writing a single word to the page will start the erase/program cycle + * automatically + */ + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_AUTOPROG, + LPC18XX_EEPROM_AUTOPROG_WORD); + + lpc18xx_eeprom_writel(eeprom, LPC18XX_EEPROM_PWRDWN, + LPC18XX_EEPROM_PWRDWN_YES); + + lpc18xx_regmap_config.max_register = resource_size(res) - 1; + lpc18xx_regmap_config.writeable_reg = lpc18xx_eeprom_writeable_reg; + lpc18xx_regmap_config.readable_reg = lpc18xx_eeprom_readable_reg; + + regmap = devm_regmap_init(dev, &lpc18xx_eeprom_bus, eeprom, + &lpc18xx_regmap_config); + if (IS_ERR(regmap)) { + dev_err(dev, "regmap init failed: %ld\n", PTR_ERR(regmap)); + ret = PTR_ERR(regmap); + goto err_clk; + } + + lpc18xx_nvmem_config.dev = dev; + + eeprom->nvmem = nvmem_register(&lpc18xx_nvmem_config); + if (IS_ERR(eeprom->nvmem)) { + ret = PTR_ERR(eeprom->nvmem); + goto err_clk; + } + + platform_set_drvdata(pdev, eeprom); + + return 0; + +err_clk: + clk_disable_unprepare(eeprom->clk); + + return ret; +} + +static int lpc18xx_eeprom_remove(struct platform_device *pdev) +{ + struct lpc18xx_eeprom_dev *eeprom = platform_get_drvdata(pdev); + int ret; + + ret = nvmem_unregister(eeprom->nvmem); + if (ret < 0) + return ret; + + clk_disable_unprepare(eeprom->clk); + + return 0; +} + +static const struct of_device_id lpc18xx_eeprom_of_match[] = { + { .compatible = "nxp,lpc1857-eeprom" }, + { }, +}; +MODULE_DEVICE_TABLE(of, lpc18xx_eeprom_of_match); + +static struct platform_driver lpc18xx_eeprom_driver = { + .probe = lpc18xx_eeprom_probe, + .remove = lpc18xx_eeprom_remove, + .driver = { + .name = "lpc18xx-eeprom", + .of_match_table = lpc18xx_eeprom_of_match, + }, +}; + +module_platform_driver(lpc18xx_eeprom_driver); + +MODULE_AUTHOR("Ariel D'Alessandro <ariel@vanguardiasur.com.ar>"); +MODULE_DESCRIPTION("NXP LPC18xx EEPROM memory Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c new file mode 100644 index 000000000000..7b35f5b630cd --- /dev/null +++ b/drivers/nvmem/mtk-efuse.c @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Andrew-CT Chen <andrew-ct.chen@mediatek.com> + * + * 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. + */ + +#include <linux/device.h> +#include <linux/module.h> +#include <linux/nvmem-provider.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +static struct regmap_config mtk_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static int mtk_efuse_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct resource *res; + struct nvmem_device *nvmem; + struct nvmem_config *econfig; + struct regmap *regmap; + void __iomem *base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + econfig = devm_kzalloc(dev, sizeof(*econfig), GFP_KERNEL); + if (!econfig) + return -ENOMEM; + + mtk_regmap_config.max_register = resource_size(res) - 1; + + regmap = devm_regmap_init_mmio(dev, base, &mtk_regmap_config); + if (IS_ERR(regmap)) { + dev_err(dev, "regmap init failed\n"); + return PTR_ERR(regmap); + } + + econfig->dev = dev; + econfig->owner = THIS_MODULE; + nvmem = nvmem_register(econfig); + if (IS_ERR(nvmem)) + return PTR_ERR(nvmem); + + platform_set_drvdata(pdev, nvmem); + + return 0; +} + +static int mtk_efuse_remove(struct platform_device *pdev) +{ + struct nvmem_device *nvmem = platform_get_drvdata(pdev); + + return nvmem_unregister(nvmem); +} + +static const struct of_device_id mtk_efuse_of_match[] = { + { .compatible = "mediatek,mt8173-efuse",}, + { .compatible = "mediatek,efuse",}, + {/* sentinel */}, +}; +MODULE_DEVICE_TABLE(of, mtk_efuse_of_match); + +static struct platform_driver mtk_efuse_driver = { + .probe = mtk_efuse_probe, + .remove = mtk_efuse_remove, + .driver = { + .name = "mediatek,efuse", + .of_match_table = mtk_efuse_of_match, + }, +}; +module_platform_driver(mtk_efuse_driver); +MODULE_AUTHOR("Andrew-CT Chen <andrew-ct.chen@mediatek.com>"); +MODULE_DESCRIPTION("Mediatek EFUSE driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c index f55213424222..a009795111e9 100644 --- a/drivers/nvmem/rockchip-efuse.c +++ b/drivers/nvmem/rockchip-efuse.c @@ -14,16 +14,16 @@ * more details. */ -#include <linux/platform_device.h> -#include <linux/nvmem-provider.h> -#include <linux/slab.h> -#include <linux/regmap.h> +#include <linux/clk.h> +#include <linux/delay.h> #include <linux/device.h> #include <linux/io.h> #include <linux/module.h> -#include <linux/delay.h> +#include <linux/nvmem-provider.h> +#include <linux/slab.h> #include <linux/of.h> -#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> #define EFUSE_A_SHIFT 6 #define EFUSE_A_MASK 0x3ff @@ -35,10 +35,10 @@ #define REG_EFUSE_CTRL 0x0000 #define REG_EFUSE_DOUT 0x0004 -struct rockchip_efuse_context { +struct rockchip_efuse_chip { struct device *dev; void __iomem *base; - struct clk *efuse_clk; + struct clk *clk; }; static int rockchip_efuse_write(void *context, const void *data, size_t count) @@ -52,34 +52,32 @@ static int rockchip_efuse_read(void *context, void *val, size_t val_size) { unsigned int offset = *(u32 *)reg; - struct rockchip_efuse_context *_context = context; - void __iomem *base = _context->base; - struct clk *clk = _context->efuse_clk; + struct rockchip_efuse_chip *efuse = context; u8 *buf = val; int ret; - ret = clk_prepare_enable(clk); + ret = clk_prepare_enable(efuse->clk); if (ret < 0) { - dev_err(_context->dev, "failed to prepare/enable efuse clk\n"); + dev_err(efuse->dev, "failed to prepare/enable efuse clk\n"); return ret; } - writel(EFUSE_LOAD | EFUSE_PGENB, base + REG_EFUSE_CTRL); + writel(EFUSE_LOAD | EFUSE_PGENB, efuse->base + REG_EFUSE_CTRL); udelay(1); while (val_size) { - writel(readl(base + REG_EFUSE_CTRL) & + writel(readl(efuse->base + REG_EFUSE_CTRL) & (~(EFUSE_A_MASK << EFUSE_A_SHIFT)), - base + REG_EFUSE_CTRL); - writel(readl(base + REG_EFUSE_CTRL) | + efuse->base + REG_EFUSE_CTRL); + writel(readl(efuse->base + REG_EFUSE_CTRL) | ((offset & EFUSE_A_MASK) << EFUSE_A_SHIFT), - base + REG_EFUSE_CTRL); + efuse->base + REG_EFUSE_CTRL); udelay(1); - writel(readl(base + REG_EFUSE_CTRL) | - EFUSE_STROBE, base + REG_EFUSE_CTRL); + writel(readl(efuse->base + REG_EFUSE_CTRL) | + EFUSE_STROBE, efuse->base + REG_EFUSE_CTRL); udelay(1); - *buf++ = readb(base + REG_EFUSE_DOUT); - writel(readl(base + REG_EFUSE_CTRL) & - (~EFUSE_STROBE), base + REG_EFUSE_CTRL); + *buf++ = readb(efuse->base + REG_EFUSE_DOUT); + writel(readl(efuse->base + REG_EFUSE_CTRL) & + (~EFUSE_STROBE), efuse->base + REG_EFUSE_CTRL); udelay(1); val_size -= 1; @@ -87,9 +85,9 @@ static int rockchip_efuse_read(void *context, } /* Switch to standby mode */ - writel(EFUSE_PGENB | EFUSE_CSB, base + REG_EFUSE_CTRL); + writel(EFUSE_PGENB | EFUSE_CSB, efuse->base + REG_EFUSE_CTRL); - clk_disable_unprepare(clk); + clk_disable_unprepare(efuse->clk); return 0; } @@ -114,48 +112,44 @@ static struct nvmem_config econfig = { }; static const struct of_device_id rockchip_efuse_match[] = { - { .compatible = "rockchip,rockchip-efuse",}, + { .compatible = "rockchip,rockchip-efuse", }, { /* sentinel */}, }; MODULE_DEVICE_TABLE(of, rockchip_efuse_match); static int rockchip_efuse_probe(struct platform_device *pdev) { - struct device *dev = &pdev->dev; struct resource *res; struct nvmem_device *nvmem; struct regmap *regmap; - void __iomem *base; - struct clk *clk; - struct rockchip_efuse_context *context; + struct rockchip_efuse_chip *efuse; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - base = devm_ioremap_resource(dev, res); - if (IS_ERR(base)) - return PTR_ERR(base); + efuse = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_efuse_chip), + GFP_KERNEL); + if (!efuse) + return -ENOMEM; - context = devm_kzalloc(dev, sizeof(struct rockchip_efuse_context), - GFP_KERNEL); - if (IS_ERR(context)) - return PTR_ERR(context); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + efuse->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(efuse->base)) + return PTR_ERR(efuse->base); - clk = devm_clk_get(dev, "pclk_efuse"); - if (IS_ERR(clk)) - return PTR_ERR(clk); + efuse->clk = devm_clk_get(&pdev->dev, "pclk_efuse"); + if (IS_ERR(efuse->clk)) + return PTR_ERR(efuse->clk); - context->dev = dev; - context->base = base; - context->efuse_clk = clk; + efuse->dev = &pdev->dev; rockchip_efuse_regmap_config.max_register = resource_size(res) - 1; - regmap = devm_regmap_init(dev, &rockchip_efuse_bus, - context, &rockchip_efuse_regmap_config); + regmap = devm_regmap_init(efuse->dev, &rockchip_efuse_bus, + efuse, &rockchip_efuse_regmap_config); if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed\n"); + dev_err(efuse->dev, "regmap init failed\n"); return PTR_ERR(regmap); } - econfig.dev = dev; + + econfig.dev = efuse->dev; nvmem = nvmem_register(&econfig); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c index cfa3b85064dd..bc88b4084055 100644 --- a/drivers/nvmem/sunxi_sid.c +++ b/drivers/nvmem/sunxi_sid.c @@ -13,10 +13,8 @@ * 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/device.h> #include <linux/io.h> #include <linux/module.h> @@ -27,7 +25,6 @@ #include <linux/slab.h> #include <linux/random.h> - static struct nvmem_config econfig = { .name = "sunxi-sid", .read_only = true, @@ -55,8 +52,8 @@ static u8 sunxi_sid_read_byte(const struct sunxi_sid *sid, } static int sunxi_sid_read(void *context, - const void *reg, size_t reg_size, - void *val, size_t val_size) + const void *reg, size_t reg_size, + void *val, size_t val_size) { struct sunxi_sid *sid = context; unsigned int offset = *(u32 *)reg; @@ -130,7 +127,7 @@ static int sunxi_sid_probe(struct platform_device *pdev) if (IS_ERR(nvmem)) return PTR_ERR(nvmem); - randomness = kzalloc(sizeof(u8) * size, GFP_KERNEL); + randomness = kzalloc(sizeof(u8) * (size), GFP_KERNEL); if (!randomness) { ret = -EINVAL; goto err_unreg_nvmem; |