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| author |   Heiko Stuebner <heiko@sntech.de> | 2015-07-05 11:00:14 +0200 |
|---|---|---|
| committer |   Stephen Boyd <sboyd@codeaurora.org> | 2015-07-06 15:04:40 -0700 |
| commit | 8a76f443a9ea6f7f72ede9f95fe0ca5b90f09a43 (patch) | |
| tree | 3d15fd17c70ea1dd6e43efc55ac78a6fe6842b11 /drivers/clk/rockchip/clk.h | |
| parent | clk: rockchip: add COMPOSITE_NOGATE_DIVTBL variant (diff) | |
| download | linux-dev-8a76f443a9ea6f7f72ede9f95fe0ca5b90f09a43.tar.xz linux-dev-8a76f443a9ea6f7f72ede9f95fe0ca5b90f09a43.zip | |
clk: rockchip: add support for phase inverters
Most Rockchip socs have optional phase inverters connected to some
clocks that move the clock-phase by 180 degrees.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[sboyd@codeaurora.org: Dropped lazy part of commit text]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/rockchip/clk.h')
| -rw-r--r-- | drivers/clk/rockchip/clk.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index 501f02ea9d4b..b72dad074a75 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -182,6 +182,13 @@ struct clk *rockchip_clk_register_mmc(const char *name, const char *const *parent_names, u8 num_parents, void __iomem *reg, int shift); +#define ROCKCHIP_INVERTER_HIWORD_MASK BIT(0) + +struct clk *rockchip_clk_register_inverter(const char *name, + const char *const *parent_names, u8 num_parents, + void __iomem *reg, int shift, int flags, + spinlock_t *lock); + #define PNAME(x) static const char *const x[] __initconst enum rockchip_clk_branch_type { @@ -191,6 +198,7 @@ enum rockchip_clk_branch_type { branch_fraction_divider, branch_gate, branch_mmc, + branch_inverter, }; struct rockchip_clk_branch { @@ -414,6 +422,18 @@ struct rockchip_clk_branch { .div_shift = shift, \ } +#define INVERTER(_id, cname, pname, io, is, if) \ + { \ + .id = _id, \ + .branch_type = branch_inverter, \ + .name = cname, \ + .parent_names = (const char *[]){ pname }, \ + .num_parents = 1, \ + .muxdiv_offset = io, \ + .div_shift = is, \ + .div_flags = if, \ + } + void rockchip_clk_init(struct device_node *np, void __iomem *base, unsigned long nr_clks); struct regmap *rockchip_clk_get_grf(void); |