diff options
Diffstat (limited to 'drivers/clk/rockchip/clk-pll.c')
| -rw-r--r-- | drivers/clk/rockchip/clk-pll.c | 60 |
1 files changed, 30 insertions, 30 deletions
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c index 2d42eb628926..86dba3826a77 100644 --- a/drivers/clk/rockchip/clk-pll.c +++ b/drivers/clk/rockchip/clk-pll.c @@ -61,21 +61,26 @@ static const struct rockchip_pll_rate_table *rockchip_get_pll_settings( return NULL; } -static long rockchip_pll_round_rate(struct clk_hw *hw, - unsigned long drate, unsigned long *prate) +static int rockchip_pll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw); const struct rockchip_pll_rate_table *rate_table = pll->rate_table; int i; - /* Assumming rate_table is in descending order */ + /* Assuming rate_table is in descending order */ for (i = 0; i < pll->rate_count; i++) { - if (drate >= rate_table[i].rate) - return rate_table[i].rate; + if (req->rate >= rate_table[i].rate) { + req->rate = rate_table[i].rate; + + return 0; + } } /* return minimum supported value */ - return rate_table[i - 1].rate; + req->rate = rate_table[i - 1].rate; + + return 0; } /* @@ -204,10 +209,12 @@ static int rockchip_rk3036_pll_set_params(struct rockchip_clk_pll *pll, rockchip_rk3036_pll_get_params(pll, &cur); cur.rate = 0; - cur_parent = pll_mux_ops->get_parent(&pll_mux->hw); - if (cur_parent == PLL_MODE_NORM) { - pll_mux_ops->set_parent(&pll_mux->hw, PLL_MODE_SLOW); - rate_change_remuxed = 1; + if (!(pll->flags & ROCKCHIP_PLL_FIXED_MODE)) { + cur_parent = pll_mux_ops->get_parent(&pll_mux->hw); + if (cur_parent == PLL_MODE_NORM) { + pll_mux_ops->set_parent(&pll_mux->hw, PLL_MODE_SLOW); + rate_change_remuxed = 1; + } } /* update pll values */ @@ -350,7 +357,7 @@ static const struct clk_ops rockchip_rk3036_pll_clk_norate_ops = { static const struct clk_ops rockchip_rk3036_pll_clk_ops = { .recalc_rate = rockchip_rk3036_pll_recalc_rate, - .round_rate = rockchip_pll_round_rate, + .determine_rate = rockchip_pll_determine_rate, .set_rate = rockchip_rk3036_pll_set_rate, .enable = rockchip_rk3036_pll_enable, .disable = rockchip_rk3036_pll_disable, @@ -569,7 +576,7 @@ static const struct clk_ops rockchip_rk3066_pll_clk_norate_ops = { static const struct clk_ops rockchip_rk3066_pll_clk_ops = { .recalc_rate = rockchip_rk3066_pll_recalc_rate, - .round_rate = rockchip_pll_round_rate, + .determine_rate = rockchip_pll_determine_rate, .set_rate = rockchip_rk3066_pll_set_rate, .enable = rockchip_rk3066_pll_enable, .disable = rockchip_rk3066_pll_disable, @@ -834,7 +841,7 @@ static const struct clk_ops rockchip_rk3399_pll_clk_norate_ops = { static const struct clk_ops rockchip_rk3399_pll_clk_ops = { .recalc_rate = rockchip_rk3399_pll_recalc_rate, - .round_rate = rockchip_pll_round_rate, + .determine_rate = rockchip_pll_determine_rate, .set_rate = rockchip_rk3399_pll_set_rate, .enable = rockchip_rk3399_pll_enable, .disable = rockchip_rk3399_pll_disable, @@ -914,7 +921,10 @@ static unsigned long rockchip_rk3588_pll_recalc_rate(struct clk_hw *hw, unsigned } rate64 = rate64 >> cur.s; - return (unsigned long)rate64; + if (pll->type == pll_rk3588_ddr) + return (unsigned long)rate64 * 2; + else + return (unsigned long)rate64; } static int rockchip_rk3588_pll_set_params(struct rockchip_clk_pll *pll, @@ -1022,16 +1032,6 @@ static int rockchip_rk3588_pll_is_enabled(struct clk_hw *hw) return !(pllcon & RK3588_PLLCON1_PWRDOWN); } -static int rockchip_rk3588_pll_init(struct clk_hw *hw) -{ - struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw); - - if (!(pll->flags & ROCKCHIP_PLL_SYNC_RATE)) - return 0; - - return 0; -} - static const struct clk_ops rockchip_rk3588_pll_clk_norate_ops = { .recalc_rate = rockchip_rk3588_pll_recalc_rate, .enable = rockchip_rk3588_pll_enable, @@ -1041,12 +1041,11 @@ static const struct clk_ops rockchip_rk3588_pll_clk_norate_ops = { static const struct clk_ops rockchip_rk3588_pll_clk_ops = { .recalc_rate = rockchip_rk3588_pll_recalc_rate, - .round_rate = rockchip_pll_round_rate, + .determine_rate = rockchip_pll_determine_rate, .set_rate = rockchip_rk3588_pll_set_rate, .enable = rockchip_rk3588_pll_enable, .disable = rockchip_rk3588_pll_disable, .is_enabled = rockchip_rk3588_pll_is_enabled, - .init = rockchip_rk3588_pll_init, }; /* @@ -1136,10 +1135,10 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx, len++; pll->rate_count = len; - pll->rate_table = kmemdup(rate_table, - pll->rate_count * - sizeof(struct rockchip_pll_rate_table), - GFP_KERNEL); + pll->rate_table = kmemdup_array(rate_table, + pll->rate_count, + sizeof(*pll->rate_table), + GFP_KERNEL); WARN(!pll->rate_table, "%s: could not allocate rate table for %s\n", __func__, name); @@ -1167,6 +1166,7 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx, break; case pll_rk3588: case pll_rk3588_core: + case pll_rk3588_ddr: if (!pll->rate_table) init.ops = &rockchip_rk3588_pll_clk_norate_ops; else |