From 33e5e29cbbde92615fc80be5a0e4d41346478f19 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Sun, 24 Apr 2016 20:28:13 +0100 Subject: [PATCH] nvmem: imx-ocotp: remove nvmem regmap dependency This patch moves to nvmem support in the driver to use callback instead of regmap. Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- drivers/nvmem/imx-ocotp.c | 55 ++++++++++------------------------------------- 1 file changed, 11 insertions(+), 44 deletions(-) diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index d7796eb..75e66ef 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -22,7 +22,6 @@ #include #include #include -#include #include struct ocotp_priv { @@ -31,59 +30,34 @@ struct ocotp_priv { unsigned int nregs; }; -static int imx_ocotp_read(void *context, const void *reg, size_t reg_size, - void *val, size_t val_size) +static int imx_ocotp_read(void *context, unsigned int offset, + void *val, size_t bytes) { struct ocotp_priv *priv = context; - unsigned int offset = *(u32 *)reg; unsigned int count; + u32 *buf = val; int i; u32 index; index = offset >> 2; - count = val_size >> 2; + count = bytes >> 2; if (count > (priv->nregs - index)) count = priv->nregs - index; - for (i = index; i < (index + count); i++) { - *(u32 *)val = readl(priv->base + 0x400 + i * 0x10); - val += 4; - } + for (i = index; i < (index + count); i++) + *buf++ = readl(priv->base + 0x400 + i * 0x10); return 0; } -static int imx_ocotp_write(void *context, const void *data, size_t count) -{ - /* Not implemented */ - return 0; -} - -static struct regmap_bus imx_ocotp_bus = { - .read = imx_ocotp_read, - .write = imx_ocotp_write, - .reg_format_endian_default = REGMAP_ENDIAN_NATIVE, - .val_format_endian_default = REGMAP_ENDIAN_NATIVE, -}; - -static bool imx_ocotp_writeable_reg(struct device *dev, unsigned int reg) -{ - return false; -} - -static struct regmap_config imx_ocotp_regmap_config = { - .reg_bits = 32, - .val_bits = 32, - .reg_stride = 4, - .writeable_reg = imx_ocotp_writeable_reg, - .name = "imx-ocotp", -}; - static struct nvmem_config imx_ocotp_nvmem_config = { .name = "imx-ocotp", .read_only = true, + .word_size = 4, + .stride = 4, .owner = THIS_MODULE, + .reg_read = imx_ocotp_read, }; static const struct of_device_id imx_ocotp_dt_ids[] = { @@ -99,7 +73,6 @@ static int imx_ocotp_probe(struct platform_device *pdev) const struct of_device_id *of_id; struct device *dev = &pdev->dev; struct resource *res; - struct regmap *regmap; struct ocotp_priv *priv; struct nvmem_device *nvmem; @@ -114,15 +87,9 @@ static int imx_ocotp_probe(struct platform_device *pdev) of_id = of_match_device(imx_ocotp_dt_ids, dev); priv->nregs = (unsigned int)of_id->data; - imx_ocotp_regmap_config.max_register = 4 * priv->nregs - 4; - - regmap = devm_regmap_init(dev, &imx_ocotp_bus, priv, - &imx_ocotp_regmap_config); - if (IS_ERR(regmap)) { - dev_err(dev, "regmap init failed\n"); - return PTR_ERR(regmap); - } + imx_ocotp_nvmem_config.size = 4 * priv->nregs; imx_ocotp_nvmem_config.dev = dev; + imx_ocotp_nvmem_config.priv = priv; nvmem = nvmem_register(&imx_ocotp_nvmem_config); if (IS_ERR(nvmem)) return PTR_ERR(nvmem); -- 2.7.4