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path: root/drivers/clk/meson/clk-mpll.c
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Diffstat (limited to 'drivers/clk/meson/clk-mpll.c')
-rw-r--r--drivers/clk/meson/clk-mpll.c44
1 files changed, 23 insertions, 21 deletions
diff --git a/drivers/clk/meson/clk-mpll.c b/drivers/clk/meson/clk-mpll.c
index fc9df4860872..7f8dada66e16 100644
--- a/drivers/clk/meson/clk-mpll.c
+++ b/drivers/clk/meson/clk-mpll.c
@@ -87,16 +87,22 @@ static unsigned long mpll_recalc_rate(struct clk_hw *hw,
return rate < 0 ? 0 : rate;
}
-static long mpll_round_rate(struct clk_hw *hw,
- unsigned long rate,
- unsigned long *parent_rate)
+static int mpll_determine_rate(struct clk_hw *hw, struct clk_rate_request *req)
{
struct clk_regmap *clk = to_clk_regmap(hw);
struct meson_clk_mpll_data *mpll = meson_clk_mpll_data(clk);
unsigned int sdm, n2;
+ long rate;
+
+ params_from_rate(req->rate, req->best_parent_rate, &sdm, &n2,
+ mpll->flags);
+
+ rate = rate_from_params(req->best_parent_rate, sdm, n2);
+ if (rate < 0)
+ return rate;
- params_from_rate(rate, *parent_rate, &sdm, &n2, mpll->flags);
- return rate_from_params(*parent_rate, sdm, n2);
+ req->rate = rate;
+ return 0;
}
static int mpll_set_rate(struct clk_hw *hw,
@@ -106,26 +112,15 @@ static int mpll_set_rate(struct clk_hw *hw,
struct clk_regmap *clk = to_clk_regmap(hw);
struct meson_clk_mpll_data *mpll = meson_clk_mpll_data(clk);
unsigned int sdm, n2;
- unsigned long flags = 0;
params_from_rate(rate, parent_rate, &sdm, &n2, mpll->flags);
- if (mpll->lock)
- spin_lock_irqsave(mpll->lock, flags);
- else
- __acquire(mpll->lock);
-
/* Set the fractional part */
meson_parm_write(clk->map, &mpll->sdm, sdm);
/* Set the integer divider part */
meson_parm_write(clk->map, &mpll->n2, n2);
- if (mpll->lock)
- spin_unlock_irqrestore(mpll->lock, flags);
- else
- __release(mpll->lock);
-
return 0;
}
@@ -133,6 +128,11 @@ static int mpll_init(struct clk_hw *hw)
{
struct clk_regmap *clk = to_clk_regmap(hw);
struct meson_clk_mpll_data *mpll = meson_clk_mpll_data(clk);
+ int ret;
+
+ ret = clk_regmap_init(hw);
+ if (ret)
+ return ret;
if (mpll->init_count)
regmap_multi_reg_write(clk->map, mpll->init_regs,
@@ -156,19 +156,21 @@ static int mpll_init(struct clk_hw *hw)
}
const struct clk_ops meson_clk_mpll_ro_ops = {
+ .init = clk_regmap_init,
.recalc_rate = mpll_recalc_rate,
- .round_rate = mpll_round_rate,
+ .determine_rate = mpll_determine_rate,
};
-EXPORT_SYMBOL_GPL(meson_clk_mpll_ro_ops);
+EXPORT_SYMBOL_NS_GPL(meson_clk_mpll_ro_ops, "CLK_MESON");
const struct clk_ops meson_clk_mpll_ops = {
.recalc_rate = mpll_recalc_rate,
- .round_rate = mpll_round_rate,
+ .determine_rate = mpll_determine_rate,
.set_rate = mpll_set_rate,
.init = mpll_init,
};
-EXPORT_SYMBOL_GPL(meson_clk_mpll_ops);
+EXPORT_SYMBOL_NS_GPL(meson_clk_mpll_ops, "CLK_MESON");
MODULE_DESCRIPTION("Amlogic MPLL driver");
MODULE_AUTHOR("Michael Turquette <mturquette@baylibre.com>");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("CLK_MESON");