@@ -567,40 +567,72 @@ static struct platform_device *qhd_devices[] __initdata = {
/* FSI */
#define IRQ_FSI evt2irq(0x1840)
+static int __fsi_set_rate(struct clk *clk, long rate, int enable)
+{
+ int ret = 0;
+
+ if (rate <= 0)
+ return 0;
-static int fsi_set_rate(int is_porta, int rate)
+ if (enable) {
+ ret = clk_set_rate(clk, clk_round_rate(clk, rate));
+ if (0 == ret)
+ ret = clk_enable(clk);
+ } else {
+ clk_disable(clk);
+ }
+
+ return ret;
+}
+
+static int fsi_set_rate(struct device *dev, int is_porta, int rate, int enable)
{
struct clk *fsib_clk;
struct clk *fdiv_clk = &sh7372_fsidivb_clk;
+ long fsib_rate = 0;
+ long fdiv_rate = 0;
+ int ackmd_bpfmd;
int ret;
/* set_rate is not needed if port A */
if (is_porta)
return 0;
- fsib_clk = clk_get(NULL, "fsib_clk");
- if (IS_ERR(fsib_clk))
- return -EINVAL;
-
switch (rate) {
case 44100:
- clk_set_rate(fsib_clk, clk_round_rate(fsib_clk, 11283000));
- ret = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
+ fsib_rate = 11283000;
+ ackmd_bpfmd = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
break;
case 48000:
- clk_set_rate(fsib_clk, clk_round_rate(fsib_clk, 85428000));
- clk_set_rate(fdiv_clk, clk_round_rate(fdiv_clk, 12204000));
- ret = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
+ fsib_rate = 85428000;
+ fdiv_rate = 12204000;
+ ackmd_bpfmd = SH_FSI_ACKMD_256 | SH_FSI_BPFMD_64;
break;
default:
pr_err("unsupported rate in FSI2 port B\n");
- ret = -EINVAL;
- break;
+ return -EINVAL;
}
+ /* FSI B setting */
+ fsib_clk = clk_get(dev, "ickb");
+ if (IS_ERR(fsib_clk))
+ return -EIO;
+
+ ret = __fsi_set_rate(fsib_clk, fsib_rate, enable);
clk_put(fsib_clk);
+ if (ret < 0)
+ return ret;
- return ret;
+ /* FSI DIV setting */
+ ret = __fsi_set_rate(fdiv_clk, fdiv_rate, enable);
+ if (ret < 0) {
+ /* disable FSI B */
+ if (enable)
+ __fsi_set_rate(fsib_clk, fsib_rate, 0);
+ return ret;
+ }
+
+ return ackmd_bpfmd;
}
static struct sh_fsi_platform_info fsi_info = {
@@ -471,7 +471,7 @@ static int fsidiv_set_rate(struct clk *clk,
return -ENOENT;
__raw_writel(idx << 16, clk->mapping->base);
- return fsidiv_enable(clk);
+ return 0;
}
static struct clk_ops fsidiv_clk_ops = {
@@ -85,7 +85,9 @@
* ACK_MD (FSI2)
* CKG1 (FSI)
*
- * err: return value < 0
+ * err : return value < 0
+ * no change : return value == 0
+ * change xMD : return value > 0
*
* 0x-00000AB
*
@@ -111,7 +113,7 @@
struct sh_fsi_platform_info {
unsigned long porta_flags;
unsigned long portb_flags;
- int (*set_rate)(int is_porta, int rate); /* for master mode */
+ int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
};
#endif /* __SOUND_FSI_H */
@@ -132,6 +132,8 @@ struct fsi_priv {
struct fsi_stream playback;
struct fsi_stream capture;
+ long rate;
+
u32 mst_ctrl;
};
@@ -854,10 +856,17 @@ static void fsi_dai_shutdown(struct snd_pcm_substream *substream,
{
struct fsi_priv *fsi = fsi_get_priv(substream);
int is_play = fsi_is_play(substream);
+ struct fsi_master *master = fsi_get_master(fsi);
+ int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
fsi_irq_disable(fsi, is_play);
fsi_clk_ctrl(fsi, 0);
+ set_rate = master->info->set_rate;
+ if (set_rate && fsi->rate)
+ set_rate(dai->dev, fsi_is_port_a(fsi), fsi->rate, 0);
+ fsi->rate = 0;
+
pm_runtime_put_sync(dai->dev);
}
@@ -891,9 +900,10 @@ static int fsi_dai_hw_params(struct snd_pcm_substream *substream,
{
struct fsi_priv *fsi = fsi_get_priv(substream);
struct fsi_master *master = fsi_get_master(fsi);
- int (*set_rate)(int is_porta, int rate) = master->info->set_rate;
+ int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
int fsi_ver = master->core->ver;
int is_play = fsi_is_play(substream);
+ long rate = params_rate(params);
int ret;
/* if slave mode, set_rate is not needed */
@@ -901,10 +911,15 @@ static int fsi_dai_hw_params(struct snd_pcm_substream *substream,
return 0;
/* it is error if no set_rate */
+ set_rate = master->info->set_rate;
if (!set_rate)
return -EIO;
- ret = set_rate(fsi_is_port_a(fsi), params_rate(params));
+ ret = set_rate(dai->dev, fsi_is_port_a(fsi), rate, 1);
+ if (ret < 0) /* error */
+ return ret;
+
+ fsi->rate = rate;
if (ret > 0) {
u32 data = 0;