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Diffstat (limited to 'sound/soc/sh/rcar/adg.c')
-rw-r--r--sound/soc/sh/rcar/adg.c61
1 files changed, 37 insertions, 24 deletions
diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c
index 2145957..85a33ac 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);
}
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