Lines Matching refs:fll
1830 static int arizona_validate_fll(struct arizona_fll *fll, in arizona_validate_fll() argument
1836 if (fll->fout && Fout != fll->fout) { in arizona_validate_fll()
1837 arizona_fll_err(fll, in arizona_validate_fll()
1843 arizona_fll_err(fll, in arizona_validate_fll()
1849 Fvco_min = ARIZONA_FLL_MIN_FVCO * fll->vco_mult; in arizona_validate_fll()
1851 arizona_fll_err(fll, "No FLL_OUTDIV for Fout=%uHz\n", in arizona_validate_fll()
1875 static int arizona_calc_fratio(struct arizona_fll *fll, in arizona_calc_fratio() argument
1898 arizona_fll_err(fll, "Unable to find FRATIO for Fref=%uHz\n", in arizona_calc_fratio()
1903 switch (fll->arizona->type) { in arizona_calc_fratio()
1906 if (fll->arizona->rev < 3 || sync) in arizona_calc_fratio()
1927 (fll->vco_mult * ratio) < Fref) in arizona_calc_fratio()
1951 arizona_fll_warn(fll, "Falling back to integer mode operation\n"); in arizona_calc_fratio()
1955 static int arizona_calc_fll(struct arizona_fll *fll, in arizona_calc_fll() argument
1962 arizona_fll_dbg(fll, "Fref=%u Fout=%u\n", Fref, fll->fout); in arizona_calc_fll()
1966 while (fll->fout * div < ARIZONA_FLL_MIN_FVCO * fll->vco_mult) { in arizona_calc_fll()
1971 target = fll->fout * div / fll->vco_mult; in arizona_calc_fll()
1974 arizona_fll_dbg(fll, "Fvco=%dHz\n", target); in arizona_calc_fll()
1977 ratio = arizona_calc_fratio(fll, cfg, target, Fref, sync); in arizona_calc_fll()
1988 arizona_fll_dbg(fll, "GCD=%u\n", gcd_fll); in arizona_calc_fll()
2014 arizona_fll_err(fll, "Unable to find gain for Fref=%uHz\n", in arizona_calc_fll()
2019 arizona_fll_dbg(fll, "N=%x THETA=%x LAMBDA=%x\n", in arizona_calc_fll()
2021 arizona_fll_dbg(fll, "FRATIO=%x(%d) OUTDIV=%x REFCLK_DIV=%x\n", in arizona_calc_fll()
2023 arizona_fll_dbg(fll, "GAIN=%d\n", cfg->gain); in arizona_calc_fll()
2064 static int arizona_is_enabled_fll(struct arizona_fll *fll) in arizona_is_enabled_fll() argument
2066 struct arizona *arizona = fll->arizona; in arizona_is_enabled_fll()
2070 ret = regmap_read(arizona->regmap, fll->base + 1, ®); in arizona_is_enabled_fll()
2072 arizona_fll_err(fll, "Failed to read current state: %d\n", in arizona_is_enabled_fll()
2080 static int arizona_enable_fll(struct arizona_fll *fll) in arizona_enable_fll() argument
2082 struct arizona *arizona = fll->arizona; in arizona_enable_fll()
2084 int already_enabled = arizona_is_enabled_fll(fll); in arizona_enable_fll()
2094 regmap_update_bits_async(fll->arizona->regmap, fll->base + 0x9, in arizona_enable_fll()
2096 regmap_update_bits_async(fll->arizona->regmap, fll->base + 1, in arizona_enable_fll()
2105 if (fll->ref_src >= 0 && fll->ref_freq && in arizona_enable_fll()
2106 fll->ref_src != fll->sync_src) { in arizona_enable_fll()
2107 arizona_calc_fll(fll, &cfg, fll->ref_freq, false); in arizona_enable_fll()
2109 arizona_apply_fll(arizona, fll->base, &cfg, fll->ref_src, in arizona_enable_fll()
2111 if (fll->sync_src >= 0) { in arizona_enable_fll()
2112 arizona_calc_fll(fll, &cfg, fll->sync_freq, true); in arizona_enable_fll()
2114 arizona_apply_fll(arizona, fll->base + 0x10, &cfg, in arizona_enable_fll()
2115 fll->sync_src, true); in arizona_enable_fll()
2118 } else if (fll->sync_src >= 0) { in arizona_enable_fll()
2119 arizona_calc_fll(fll, &cfg, fll->sync_freq, false); in arizona_enable_fll()
2121 arizona_apply_fll(arizona, fll->base, &cfg, in arizona_enable_fll()
2122 fll->sync_src, false); in arizona_enable_fll()
2124 regmap_update_bits_async(arizona->regmap, fll->base + 0x11, in arizona_enable_fll()
2127 arizona_fll_err(fll, "No clocks provided\n"); in arizona_enable_fll()
2135 if (use_sync && fll->sync_freq > 100000) in arizona_enable_fll()
2136 regmap_update_bits_async(arizona->regmap, fll->base + 0x17, in arizona_enable_fll()
2139 regmap_update_bits_async(arizona->regmap, fll->base + 0x17, in arizona_enable_fll()
2146 regmap_update_bits_async(arizona->regmap, fll->base + 1, in arizona_enable_fll()
2149 regmap_update_bits_async(arizona->regmap, fll->base + 0x11, in arizona_enable_fll()
2154 regmap_update_bits_async(arizona->regmap, fll->base + 1, in arizona_enable_fll()
2157 arizona_fll_dbg(fll, "Waiting for FLL lock...\n"); in arizona_enable_fll()
2168 if (val & (ARIZONA_FLL1_CLOCK_OK_STS << (fll->id - 1))) in arizona_enable_fll()
2172 arizona_fll_warn(fll, "Timed out waiting for lock\n"); in arizona_enable_fll()
2174 arizona_fll_dbg(fll, "FLL locked (%d polls)\n", i); in arizona_enable_fll()
2179 static void arizona_disable_fll(struct arizona_fll *fll) in arizona_disable_fll() argument
2181 struct arizona *arizona = fll->arizona; in arizona_disable_fll()
2184 regmap_update_bits_async(arizona->regmap, fll->base + 1, in arizona_disable_fll()
2186 regmap_update_bits_check(arizona->regmap, fll->base + 1, in arizona_disable_fll()
2188 regmap_update_bits(arizona->regmap, fll->base + 0x11, in arizona_disable_fll()
2190 regmap_update_bits_async(arizona->regmap, fll->base + 1, in arizona_disable_fll()
2197 int arizona_set_fll_refclk(struct arizona_fll *fll, int source, in arizona_set_fll_refclk() argument
2202 if (fll->ref_src == source && fll->ref_freq == Fref) in arizona_set_fll_refclk()
2205 if (fll->fout && Fref > 0) { in arizona_set_fll_refclk()
2206 ret = arizona_validate_fll(fll, Fref, fll->fout); in arizona_set_fll_refclk()
2211 fll->ref_src = source; in arizona_set_fll_refclk()
2212 fll->ref_freq = Fref; in arizona_set_fll_refclk()
2214 if (fll->fout && Fref > 0) { in arizona_set_fll_refclk()
2215 ret = arizona_enable_fll(fll); in arizona_set_fll_refclk()
2222 int arizona_set_fll(struct arizona_fll *fll, int source, in arizona_set_fll() argument
2227 if (fll->sync_src == source && in arizona_set_fll()
2228 fll->sync_freq == Fref && fll->fout == Fout) in arizona_set_fll()
2232 if (fll->ref_src >= 0) { in arizona_set_fll()
2233 ret = arizona_validate_fll(fll, fll->ref_freq, Fout); in arizona_set_fll()
2238 ret = arizona_validate_fll(fll, Fref, Fout); in arizona_set_fll()
2243 fll->sync_src = source; in arizona_set_fll()
2244 fll->sync_freq = Fref; in arizona_set_fll()
2245 fll->fout = Fout; in arizona_set_fll()
2248 ret = arizona_enable_fll(fll); in arizona_set_fll()
2250 arizona_disable_fll(fll); in arizona_set_fll()
2257 int ok_irq, struct arizona_fll *fll) in arizona_init_fll() argument
2261 fll->id = id; in arizona_init_fll()
2262 fll->base = base; in arizona_init_fll()
2263 fll->arizona = arizona; in arizona_init_fll()
2264 fll->sync_src = ARIZONA_FLL_SRC_NONE; in arizona_init_fll()
2271 fll->ref_src = val & ARIZONA_CLK_32K_SRC_MASK; in arizona_init_fll()
2274 fll->ref_src = ARIZONA_FLL_SRC_NONE; in arizona_init_fll()
2276 fll->ref_freq = 32768; in arizona_init_fll()
2278 snprintf(fll->lock_name, sizeof(fll->lock_name), "FLL%d lock", id); in arizona_init_fll()
2279 snprintf(fll->clock_ok_name, sizeof(fll->clock_ok_name), in arizona_init_fll()
2282 regmap_update_bits(arizona->regmap, fll->base + 1, in arizona_init_fll()