diff options
| author | Peter De Schrijver <pdeschrijver@nvidia.com> | 2013-11-18 16:11:38 +0100 |
|---|---|---|
| committer | Peter De Schrijver <pdeschrijver@nvidia.com> | 2013-11-26 18:46:53 +0200 |
| commit | b29f9e926442c35bd42ebd283aaed0de2c4f1477 (patch) | |
| tree | 478f053f15bf821bb82c7d8bc58ea1c861338082 /drivers/clk/tegra | |
| parent | bc44275b8ea2df7c77658b08955ec545a37560ab (diff) | |
| download | lwn-b29f9e926442c35bd42ebd283aaed0de2c4f1477.tar.gz lwn-b29f9e926442c35bd42ebd283aaed0de2c4f1477.zip | |
clk: tegra: add TEGRA_PERIPH_NO_GATE
Tegra124 has a clock which consists of a mux and a fractional divider.
Add support for this.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/clk/tegra')
| -rw-r--r-- | drivers/clk/tegra/clk-periph.c | 18 | ||||
| -rw-r--r-- | drivers/clk/tegra/clk-tegra-periph.c | 6 | ||||
| -rw-r--r-- | drivers/clk/tegra/clk.h | 1 |
3 files changed, 22 insertions, 3 deletions
diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c index b5feccca2f1e..d62b396863c1 100644 --- a/drivers/clk/tegra/clk-periph.c +++ b/drivers/clk/tegra/clk-periph.c @@ -170,6 +170,14 @@ const struct clk_ops tegra_clk_periph_nodiv_ops = { .disable = clk_periph_disable, }; +const struct clk_ops tegra_clk_periph_no_gate_ops = { + .get_parent = clk_periph_get_parent, + .set_parent = clk_periph_set_parent, + .recalc_rate = clk_periph_recalc_rate, + .round_rate = clk_periph_round_rate, + .set_rate = clk_periph_set_rate, +}; + static struct clk *_tegra_clk_register_periph(const char *name, const char **parent_names, int num_parents, struct tegra_clk_periph *periph, @@ -181,11 +189,15 @@ static struct clk *_tegra_clk_register_periph(const char *name, struct tegra_clk_periph_regs *bank; bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV); - flags |= periph->gate.flags & TEGRA_PERIPH_NO_DIV ? - CLK_SET_RATE_PARENT : 0; + if (periph->gate.flags & TEGRA_PERIPH_NO_DIV) { + flags |= CLK_SET_RATE_PARENT; + init.ops = &tegra_clk_periph_nodiv_ops; + } else if (periph->gate.flags & TEGRA_PERIPH_NO_GATE) + init.ops = &tegra_clk_periph_no_gate_ops; + else + init.ops = &tegra_clk_periph_ops; init.name = name; - init.ops = div ? &tegra_clk_periph_ops : &tegra_clk_periph_nodiv_ops; init.flags = flags; init.parent_names = parent_names; init.num_parents = num_parents; diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c index e8d6f2f20141..958d4f4fe91f 100644 --- a/drivers/clk/tegra/clk-tegra-periph.c +++ b/drivers/clk/tegra/clk-tegra-periph.c @@ -135,6 +135,12 @@ _clk_num, _gate_flags, _clk_id, _parents##_idx, 0,\ NULL) +#define MUX8_NOGATE_LOCK(_name, _parents, _offset, _clk_id, _lock) \ + TEGRA_INIT_DATA_TABLE(_name, NULL, NULL, _parents, _offset, \ + 29, MASK(3), 0, 0, 8, 1, TEGRA_DIVIDER_ROUND_UP,\ + 0, TEGRA_PERIPH_NO_GATE, _clk_id,\ + _parents##_idx, 0, _lock) + #define INT(_name, _parents, _offset, \ _clk_num, _gate_flags, _clk_id) \ TEGRA_INIT_DATA_TABLE(_name, NULL, NULL, _parents, _offset,\ diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h index f984ebed9f1f..40fb011233c0 100644 --- a/drivers/clk/tegra/clk.h +++ b/drivers/clk/tegra/clk.h @@ -391,6 +391,7 @@ struct tegra_clk_periph_gate { #define TEGRA_PERIPH_ON_APB BIT(2) #define TEGRA_PERIPH_WAR_1005168 BIT(3) #define TEGRA_PERIPH_NO_DIV BIT(4) +#define TEGRA_PERIPH_NO_GATE BIT(5) void tegra_periph_reset(struct tegra_clk_periph_gate *gate, bool assert); extern const struct clk_ops tegra_clk_periph_gate_ops; |