diff options
Diffstat (limited to 'drivers/clk/tegra/clk-pll.c')
-rw-r--r-- | drivers/clk/tegra/clk-pll.c | 52 |
1 files changed, 31 insertions, 21 deletions
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index 100b5d9b7e26..591b9f0c155a 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -840,8 +840,8 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, return ret; } -static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_pll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct tegra_clk_pll *pll = to_clk_pll(hw); struct tegra_clk_pll_freq_table cfg; @@ -849,15 +849,20 @@ static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate, if (pll->params->flags & TEGRA_PLL_FIXED) { /* PLLM/MB are used for memory; we do not change rate */ if (pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) - return clk_hw_get_rate(hw); - return pll->params->fixed_rate; + req->rate = clk_hw_get_rate(hw); + else + req->rate = pll->params->fixed_rate; + + return 0; } - if (_get_table_rate(hw, &cfg, rate, *prate) && - pll->params->calc_rate(hw, &cfg, rate, *prate)) + if (_get_table_rate(hw, &cfg, req->rate, req->best_parent_rate) && + pll->params->calc_rate(hw, &cfg, req->rate, req->best_parent_rate)) return -EINVAL; - return cfg.output_rate; + req->rate = cfg.output_rate; + + return 0; } static unsigned long clk_pll_recalc_rate(struct clk_hw *hw, @@ -1057,7 +1062,7 @@ const struct clk_ops tegra_clk_pll_ops = { .enable = clk_pll_enable, .disable = clk_pll_disable, .recalc_rate = clk_pll_recalc_rate, - .round_rate = clk_pll_round_rate, + .determine_rate = clk_pll_determine_rate, .set_rate = clk_pll_set_rate, .restore_context = tegra_clk_pll_restore_context, }; @@ -1195,7 +1200,7 @@ static const struct clk_ops tegra_clk_pllu_ops = { .enable = clk_pllu_enable, .disable = clk_pll_disable, .recalc_rate = clk_pll_recalc_rate, - .round_rate = clk_pll_round_rate, + .determine_rate = clk_pll_determine_rate, .set_rate = clk_pll_set_rate, }; @@ -1353,15 +1358,15 @@ static int clk_pllxc_set_rate(struct clk_hw *hw, unsigned long rate, return ret; } -static long clk_pll_ramp_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_pll_ramp_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct tegra_clk_pll *pll = to_clk_pll(hw); struct tegra_clk_pll_freq_table cfg; int ret, p_div; - u64 output_rate = *prate; + u64 output_rate = req->best_parent_rate; - ret = _pll_ramp_calc_pll(hw, &cfg, rate, *prate); + ret = _pll_ramp_calc_pll(hw, &cfg, req->rate, req->best_parent_rate); if (ret < 0) return ret; @@ -1375,7 +1380,9 @@ static long clk_pll_ramp_round_rate(struct clk_hw *hw, unsigned long rate, output_rate *= cfg.n; do_div(output_rate, cfg.m * p_div); - return output_rate; + req->rate = output_rate; + + return 0; } static void _pllcx_strobe(struct tegra_clk_pll *pll) @@ -1598,12 +1605,15 @@ static unsigned long clk_pllre_recalc_rate(struct clk_hw *hw, return rate; } -static long clk_pllre_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_pllre_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct tegra_clk_pll *pll = to_clk_pll(hw); - return _pllre_calc_rate(pll, NULL, rate, *prate); + req->rate = _pllre_calc_rate(pll, NULL, req->rate, + req->best_parent_rate); + + return 0; } static int clk_plle_tegra114_enable(struct clk_hw *hw) @@ -2003,7 +2013,7 @@ static const struct clk_ops tegra_clk_pllxc_ops = { .enable = clk_pll_enable, .disable = clk_pll_disable, .recalc_rate = clk_pll_recalc_rate, - .round_rate = clk_pll_ramp_round_rate, + .determine_rate = clk_pll_ramp_determine_rate, .set_rate = clk_pllxc_set_rate, }; @@ -2012,7 +2022,7 @@ static const struct clk_ops tegra_clk_pllc_ops = { .enable = clk_pllc_enable, .disable = clk_pllc_disable, .recalc_rate = clk_pll_recalc_rate, - .round_rate = clk_pll_ramp_round_rate, + .determine_rate = clk_pll_ramp_determine_rate, .set_rate = clk_pllc_set_rate, }; @@ -2021,7 +2031,7 @@ static const struct clk_ops tegra_clk_pllre_ops = { .enable = clk_pll_enable, .disable = clk_pll_disable, .recalc_rate = clk_pllre_recalc_rate, - .round_rate = clk_pllre_round_rate, + .determine_rate = clk_pllre_determine_rate, .set_rate = clk_pllre_set_rate, }; @@ -2321,7 +2331,7 @@ static const struct clk_ops tegra_clk_pllss_ops = { .enable = clk_pll_enable, .disable = clk_pll_disable, .recalc_rate = clk_pll_recalc_rate, - .round_rate = clk_pll_ramp_round_rate, + .determine_rate = clk_pll_ramp_determine_rate, .set_rate = clk_pllxc_set_rate, .restore_context = tegra_clk_pll_restore_context, }; |