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clk: add table lookup to mux

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Add a table lookup feature to the mux clock. Also allow arbitrary masks
instead of the width. This will be used by some clocks on Tegra114. Also
adapt the tegra periph clk because it uses struct clk_mux directly.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Peter De Schrijver
2013-03-22 14:07:53 +02:00
committed by Mike Turquette
parent 5fda6858a4
commit ce4f3313b0
4 changed files with 67 additions and 21 deletions
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27
drivers/clk/tegra/clk.h
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@@ -355,15 +355,16 @@ struct clk *tegra_clk_register_periph_nodiv(const char *name,
struct tegra_clk_periph *periph, void __iomem *clk_base,
u32 offset);
#define TEGRA_CLK_PERIPH(_mux_shift, _mux_width, _mux_flags, \
#define TEGRA_CLK_PERIPH(_mux_shift, _mux_mask, _mux_flags, \
_div_shift, _div_width, _div_frac_width, \
_div_flags, _clk_num, _enb_refcnt, _regs, \
_gate_flags) \
_gate_flags, _table) \
{ \
.mux = { \
.flags = _mux_flags, \
.shift = _mux_shift, \
.width = _mux_width, \
.mask = _mux_mask, \
.table = _table, \
}, \
.divider = { \
.flags = _div_flags, \
@@ -393,26 +394,36 @@ struct tegra_periph_init_data {
const char *dev_id;
};
#define TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parent_names, _offset, \
_mux_shift, _mux_width, _mux_flags, _div_shift, \
#define TEGRA_INIT_DATA_TABLE(_name, _con_id, _dev_id, _parent_names, _offset,\
_mux_shift, _mux_mask, _mux_flags, _div_shift, \
_div_width, _div_frac_width, _div_flags, _regs, \
_clk_num, _enb_refcnt, _gate_flags, _clk_id) \
_clk_num, _enb_refcnt, _gate_flags, _clk_id, _table) \
{ \
.name = _name, \
.clk_id = _clk_id, \
.parent_names = _parent_names, \
.num_parents = ARRAY_SIZE(_parent_names), \
.periph = TEGRA_CLK_PERIPH(_mux_shift, _mux_width, \
.periph = TEGRA_CLK_PERIPH(_mux_shift, _mux_mask, \
_mux_flags, _div_shift, \
_div_width, _div_frac_width, \
_div_flags, _clk_num, \
_enb_refcnt, _regs, \
_gate_flags), \
_gate_flags, _table), \
.offset = _offset, \
.con_id = _con_id, \
.dev_id = _dev_id, \
}
#define TEGRA_INIT_DATA(_name, _con_id, _dev_id, _parent_names, _offset,\
_mux_shift, _mux_width, _mux_flags, _div_shift, \
_div_width, _div_frac_width, _div_flags, _regs, \
_clk_num, _enb_refcnt, _gate_flags, _clk_id) \
TEGRA_INIT_DATA_TABLE(_name, _con_id, _dev_id, _parent_names, _offset,\
_mux_shift, BIT(_mux_width) - 1, _mux_flags, \
_div_shift, _div_width, _div_frac_width, _div_flags, \
_regs, _clk_num, _enb_refcnt, _gate_flags, _clk_id,\
NULL)
/**
* struct clk_super_mux - super clock
*