diff options
Diffstat (limited to 'sound/soc/sh/rcar/adg.c')
-rw-r--r-- | sound/soc/sh/rcar/adg.c | 61 |
1 files changed, 37 insertions, 24 deletions
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c index 2145957d0229..85a33ac0a5c4 100644 --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -34,6 +34,9 @@ struct rsnd_adg { struct clk_onecell_data onecell; struct rsnd_mod mod; u32 flags; + u32 ckr; + u32 rbga; + u32 rbgb; int rbga_rate_for_441khz; /* RBGA */ int rbgb_rate_for_48khz; /* RBGB */ @@ -316,9 +319,11 @@ int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *ssi_mod, unsigned int rate) struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod); struct rsnd_adg *adg = rsnd_priv_to_adg(priv); struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_mod *adg_mod = rsnd_mod_get(adg); struct clk *clk; int i; u32 data; + u32 ckr = 0; int sel_table[] = { [CLKA] = 0x1, [CLKB] = 0x2, @@ -360,15 +365,14 @@ found_clock: rsnd_adg_set_ssi_clk(ssi_mod, data); if (!(adg_mode_flags(adg) & LRCLK_ASYNC)) { - struct rsnd_mod *adg_mod = rsnd_mod_get(adg); - u32 ckr = 0; - if (0 == (rate % 8000)) ckr = 0x80000000; - - rsnd_mod_bset(adg_mod, SSICKR, 0x80000000, ckr); } + rsnd_mod_bset(adg_mod, BRGCKR, 0x80FF0000, adg->ckr | ckr); + rsnd_mod_write(adg_mod, BRRA, adg->rbga); + rsnd_mod_write(adg_mod, BRRB, adg->rbgb); + dev_dbg(dev, "ADG: %s[%d] selects 0x%x for %d\n", rsnd_mod_name(ssi_mod), rsnd_mod_id(ssi_mod), data, rate); @@ -376,6 +380,25 @@ found_clock: return 0; } +void rsnd_adg_clk_control(struct rsnd_priv *priv, int enable) +{ + struct rsnd_adg *adg = rsnd_priv_to_adg(priv); + struct device *dev = rsnd_priv_to_dev(priv); + struct clk *clk; + int i, ret; + + for_each_rsnd_clk(clk, adg, i) { + ret = 0; + if (enable) + ret = clk_prepare_enable(clk); + else + clk_disable_unprepare(clk); + + if (ret < 0) + dev_warn(dev, "can't use clk %d\n", i); + } +} + static void rsnd_adg_get_clkin(struct rsnd_priv *priv, struct rsnd_adg *adg) { @@ -387,27 +410,21 @@ static void rsnd_adg_get_clkin(struct rsnd_priv *priv, [CLKC] = "clk_c", [CLKI] = "clk_i", }; - int i, ret; + int i; for (i = 0; i < CLKMAX; i++) { clk = devm_clk_get(dev, clk_name[i]); adg->clk[i] = IS_ERR(clk) ? NULL : clk; } - for_each_rsnd_clk(clk, adg, i) { - ret = clk_prepare_enable(clk); - if (ret < 0) - dev_warn(dev, "can't use clk %d\n", i); - + for_each_rsnd_clk(clk, adg, i) dev_dbg(dev, "clk %d : %p : %ld\n", i, clk, clk_get_rate(clk)); - } } static void rsnd_adg_get_clkout(struct rsnd_priv *priv, struct rsnd_adg *adg) { struct clk *clk; - struct rsnd_mod *adg_mod = rsnd_mod_get(adg); struct device *dev = rsnd_priv_to_dev(priv); struct device_node *np = dev->of_node; u32 ckr, rbgx, rbga, rbgb; @@ -532,13 +549,13 @@ static void rsnd_adg_get_clkout(struct rsnd_priv *priv, } } - rsnd_mod_bset(adg_mod, SSICKR, 0x80FF0000, ckr); - rsnd_mod_write(adg_mod, BRRA, rbga); - rsnd_mod_write(adg_mod, BRRB, rbgb); + adg->ckr = ckr; + adg->rbga = rbga; + adg->rbgb = rbgb; for_each_rsnd_clkout(clk, adg, i) dev_dbg(dev, "clkout %d : %p : %ld\n", i, clk, clk_get_rate(clk)); - dev_dbg(dev, "SSICKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n", + dev_dbg(dev, "BRGCKR = 0x%08x, BRRA/BRRB = 0x%x/0x%x\n", ckr, rbga, rbgb); } @@ -565,16 +582,12 @@ int rsnd_adg_probe(struct rsnd_priv *priv) priv->adg = adg; + rsnd_adg_clk_enable(priv); + return 0; } void rsnd_adg_remove(struct rsnd_priv *priv) { - struct rsnd_adg *adg = rsnd_priv_to_adg(priv); - struct clk *clk; - int i; - - for_each_rsnd_clk(clk, adg, i) { - clk_disable_unprepare(clk); - } + rsnd_adg_clk_disable(priv); } |