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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 20:10:59 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-16 20:10:59 +0300
commit2bf16b7a73caf3435f782e4170cfe563675e10f9 (patch)
tree7f4c5b28a02f08c4d6fd69dd43db5872b07c20c4 /drivers/nvmem/mtk-efuse.c
parentb9743042b3d31fed271ae19aee79dd86817904f0 (diff)
parentf13d1a8a801dae552ef495c84a223280586a9f67 (diff)
downloadlinux-2bf16b7a73caf3435f782e4170cfe563675e10f9.tar.xz
Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc updates from Greg KH: "Here is the big set of char/misc and other driver subsystem patches for 4.15-rc1. There are small changes all over here, hyperv driver updates, pcmcia driver updates, w1 driver updats, vme driver updates, nvmem driver updates, and lots of other little one-off driver updates as well. The shortlog has the full details. All of these have been in linux-next for quite a while with no reported issues" * tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits) VME: Return -EBUSY when DMA list in use w1: keep balance of mutex locks and refcnts MAINTAINERS: Update VME subsystem tree. nvmem: sunxi-sid: add support for A64/H5's SID controller nvmem: imx-ocotp: Update module description nvmem: imx-ocotp: Enable i.MX7D OTP write support nvmem: imx-ocotp: Add i.MX7D timing write clock setup support nvmem: imx-ocotp: Move i.MX6 write clock setup to dedicated function nvmem: imx-ocotp: Add support for banked OTP addressing nvmem: imx-ocotp: Pass parameters via a struct nvmem: imx-ocotp: Restrict OTP write to IMX6 processors nvmem: uniphier: add UniPhier eFuse driver dt-bindings: nvmem: add description for UniPhier eFuse nvmem: set nvmem->owner to nvmem->dev->driver->owner if unset nvmem: qfprom: fix different address space warnings of sparse nvmem: mtk-efuse: fix different address space warnings of sparse nvmem: mtk-efuse: use stack for nvmem_config instead of malloc'ing it nvmem: imx-iim: use stack for nvmem_config instead of malloc'ing it thunderbolt: tb: fix use after free in tb_activate_pcie_devices MAINTAINERS: Add git tree for Thunderbolt development ...
Diffstat (limited to 'drivers/nvmem/mtk-efuse.c')
-rw-r--r--drivers/nvmem/mtk-efuse.c47
1 files changed, 25 insertions, 22 deletions
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c
index 32fd572e18c5..9ee3479cfc7b 100644
--- a/drivers/nvmem/mtk-efuse.c
+++ b/drivers/nvmem/mtk-efuse.c
@@ -18,15 +18,19 @@
#include <linux/nvmem-provider.h>
#include <linux/platform_device.h>
+struct mtk_efuse_priv {
+ void __iomem *base;
+};
+
static int mtk_reg_read(void *context,
unsigned int reg, void *_val, size_t bytes)
{
- void __iomem *base = context;
+ struct mtk_efuse_priv *priv = context;
u32 *val = _val;
int i = 0, words = bytes / 4;
while (words--)
- *val++ = readl(base + reg + (i++ * 4));
+ *val++ = readl(priv->base + reg + (i++ * 4));
return 0;
}
@@ -34,12 +38,12 @@ static int mtk_reg_read(void *context,
static int mtk_reg_write(void *context,
unsigned int reg, void *_val, size_t bytes)
{
- void __iomem *base = context;
+ struct mtk_efuse_priv *priv = context;
u32 *val = _val;
int i = 0, words = bytes / 4;
while (words--)
- writel(*val++, base + reg + (i++ * 4));
+ writel(*val++, priv->base + reg + (i++ * 4));
return 0;
}
@@ -49,27 +53,26 @@ 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;
- void __iomem *base;
+ struct nvmem_config econfig = {};
+ struct mtk_efuse_priv *priv;
- 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)
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
return -ENOMEM;
- econfig->stride = 4;
- econfig->word_size = 4;
- econfig->reg_read = mtk_reg_read;
- econfig->reg_write = mtk_reg_write;
- econfig->size = resource_size(res);
- econfig->priv = base;
- econfig->dev = dev;
- econfig->owner = THIS_MODULE;
- nvmem = nvmem_register(econfig);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap_resource(dev, res);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ econfig.stride = 4;
+ econfig.word_size = 4;
+ econfig.reg_read = mtk_reg_read;
+ econfig.reg_write = mtk_reg_write;
+ econfig.size = resource_size(res);
+ econfig.priv = priv;
+ econfig.dev = dev;
+ nvmem = nvmem_register(&econfig);
if (IS_ERR(nvmem))
return PTR_ERR(nvmem);