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path: root/drivers/clk/tegra/clk-periph.c
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Diffstat (limited to 'drivers/clk/tegra/clk-periph.c')
-rw-r--r--drivers/clk/tegra/clk-periph.c72
1 files changed, 28 insertions, 44 deletions
diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c
index b2309d37a96..c534043c048 100644
--- a/drivers/clk/tegra/clk-periph.c
+++ b/drivers/clk/tegra/clk-periph.c
@@ -111,46 +111,6 @@ static void clk_periph_disable(struct clk_hw *hw)
gate_ops->disable(gate_hw);
}
-void tegra_periph_reset_deassert(struct clk *c)
-{
- struct clk_hw *hw = __clk_get_hw(c);
- struct tegra_clk_periph *periph = to_clk_periph(hw);
- struct tegra_clk_periph_gate *gate;
-
- if (periph->magic != TEGRA_CLK_PERIPH_MAGIC) {
- gate = to_clk_periph_gate(hw);
- if (gate->magic != TEGRA_CLK_PERIPH_GATE_MAGIC) {
- WARN_ON(1);
- return;
- }
- } else {
- gate = &periph->gate;
- }
-
- tegra_periph_reset(gate, 0);
-}
-EXPORT_SYMBOL(tegra_periph_reset_deassert);
-
-void tegra_periph_reset_assert(struct clk *c)
-{
- struct clk_hw *hw = __clk_get_hw(c);
- struct tegra_clk_periph *periph = to_clk_periph(hw);
- struct tegra_clk_periph_gate *gate;
-
- if (periph->magic != TEGRA_CLK_PERIPH_MAGIC) {
- gate = to_clk_periph_gate(hw);
- if (gate->magic != TEGRA_CLK_PERIPH_GATE_MAGIC) {
- WARN_ON(1);
- return;
- }
- } else {
- gate = &periph->gate;
- }
-
- tegra_periph_reset(gate, 1);
-}
-EXPORT_SYMBOL(tegra_periph_reset_assert);
-
const struct clk_ops tegra_clk_periph_ops = {
.get_parent = clk_periph_get_parent,
.set_parent = clk_periph_set_parent,
@@ -170,27 +130,50 @@ 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,
- void __iomem *clk_base, u32 offset, bool div,
+ void __iomem *clk_base, u32 offset,
unsigned long flags)
{
struct clk *clk;
struct clk_init_data init;
+ struct tegra_clk_periph_regs *bank;
+ bool div = !(periph->gate.flags & TEGRA_PERIPH_NO_DIV);
+
+ 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;
+ bank = get_reg_bank(periph->gate.clk_num);
+ if (!bank)
+ return ERR_PTR(-EINVAL);
+
/* Data in .init is copied by clk_register(), so stack variable OK */
periph->hw.init = &init;
periph->magic = TEGRA_CLK_PERIPH_MAGIC;
periph->mux.reg = clk_base + offset;
periph->divider.reg = div ? (clk_base + offset) : NULL;
periph->gate.clk_base = clk_base;
+ periph->gate.regs = bank;
+ periph->gate.enable_refcnt = periph_clk_enb_refcnt;
clk = clk_register(NULL, &periph->hw);
if (IS_ERR(clk))
@@ -209,7 +192,7 @@ struct clk *tegra_clk_register_periph(const char *name,
u32 offset, unsigned long flags)
{
return _tegra_clk_register_periph(name, parent_names, num_parents,
- periph, clk_base, offset, true, flags);
+ periph, clk_base, offset, flags);
}
struct clk *tegra_clk_register_periph_nodiv(const char *name,
@@ -217,6 +200,7 @@ struct clk *tegra_clk_register_periph_nodiv(const char *name,
struct tegra_clk_periph *periph, void __iomem *clk_base,
u32 offset)
{
+ periph->gate.flags |= TEGRA_PERIPH_NO_DIV;
return _tegra_clk_register_periph(name, parent_names, num_parents,
- periph, clk_base, offset, false, CLK_SET_RATE_PARENT);
+ periph, clk_base, offset, CLK_SET_RATE_PARENT);
}