diff options
Diffstat (limited to 'drivers/clk/meson/clk-mpll.c')
| -rw-r--r-- | drivers/clk/meson/clk-mpll.c | 44 |
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"); |
