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clk: fractional-divider: keep mwidth and nwidth internally 

The patch adds mwidth and nwidth fields to the struct clk_fractional_divider
for further usage. While here, use GENMASK() instead of open coding this
functionality.

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Andy Shevchenko 2015-09-22 18:54:09 +03:00 committed by Stephen Boyd
parent f7f087c262
commit 934e2536b1
2 changed files with 6 additions and 3 deletions
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6
drivers/clk/clk-fractional-divider.c
View File

@ -128,9 +128,11 @@ struct clk *clk_register_fractional_divider(struct device *dev,
fd->reg = reg;
fd->mshift = mshift;
fd->mmask = (BIT(mwidth) - 1) << mshift;
fd->mwidth = mwidth;
fd->mmask = GENMASK(mwidth - 1, 0) << mshift;
fd->nshift = nshift;
fd->nmask = (BIT(nwidth) - 1) << nshift;
fd->nwidth = nwidth;
fd->nmask = GENMASK(nwidth - 1, 0) << nshift;
fd->flags = clk_divider_flags;
fd->lock = lock;
fd->hw.init = &init;

3
include/linux/clk-provider.h
View File

@ -500,13 +500,14 @@ struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
*
* Clock with adjustable fractional divider affecting its output frequency.
*/
struct clk_fractional_divider {
struct clk_hw hw;
void __iomem *reg;
u8 mshift;
u8 mwidth;
u32 mmask;
u8 nshift;
u8 nwidth;
u32 nmask;
u8 flags;
spinlock_t *lock;