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regmap: mmio: add regmap_mmio_{regsize, count}_check.

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Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Xiubo Li 2014-03-27 12:42:42 +08:00 committed by Mark Brown
parent 38dbfb59d1
commit 41b0c2c976
1 changed files with 13 additions and 3 deletions
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16
drivers/base/regmap/regmap-mmio.c
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@ -30,6 +30,16 @@ struct regmap_mmio_context {
struct clk *clk; struct clk *clk;
}; };
static inline void regmap_mmio_regsize_check(size_t reg_size)
{
BUG_ON(reg_size != 4);
}
static inline void regmap_mmio_count_check(size_t count)
{
BUG_ON(count < 4);
}
static int regmap_mmio_gather_write(void *context, static int regmap_mmio_gather_write(void *context,
const void *reg, size_t reg_size, const void *reg, size_t reg_size,
const void *val, size_t val_size) const void *val, size_t val_size)
@ -38,7 +48,7 @@ static int regmap_mmio_gather_write(void *context,
u32 offset; u32 offset;
int ret; int ret;
BUG_ON(reg_size != 4); regmap_mmio_regsize_check(reg_size);
if (!IS_ERR(ctx->clk)) { if (!IS_ERR(ctx->clk)) {
ret = clk_enable(ctx->clk); ret = clk_enable(ctx->clk);
@ -81,7 +91,7 @@ static int regmap_mmio_gather_write(void *context,
static int regmap_mmio_write(void *context, const void *data, size_t count) static int regmap_mmio_write(void *context, const void *data, size_t count)
{ {
BUG_ON(count < 4); regmap_mmio_count_check(count);
return regmap_mmio_gather_write(context, data, 4, data + 4, count - 4); return regmap_mmio_gather_write(context, data, 4, data + 4, count - 4);
} }
@ -94,7 +104,7 @@ static int regmap_mmio_read(void *context,
u32 offset; u32 offset;
int ret; int ret;
BUG_ON(reg_size != 4); regmap_mmio_regsize_check(reg_size);
if (!IS_ERR(ctx->clk)) { if (!IS_ERR(ctx->clk)) {
ret = clk_enable(ctx->clk); ret = clk_enable(ctx->clk);