Merge 4.19-rc6 into tty-next

We want the tty/serial fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

5 files changed, 46 insertions, 7 deletions

diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c
index 3a3064dda57f..051f96405346 100644
--- a/sound/soc/sh/rcar/adg.c
+++ b/sound/soc/sh/rcar/adg.c
@@ -462,6 +462,11 @@ static void rsnd_adg_get_clkout(struct rsnd_priv *priv,
 		goto rsnd_adg_get_clkout_end;
 
 	req_size = prop->length / sizeof(u32);
+	if (req_size > REQ_SIZE) {
+		dev_err(dev,
+			"too many clock-frequency, use top %d\n", REQ_SIZE);
+		req_size = REQ_SIZE;
+	}
 
 	of_property_read_u32_array(np, "clock-frequency", req_rate, req_size);
 	req_48kHz_rate = 0;
diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index f8425d8b44d2..d23c2bbff0cf 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -478,7 +478,7 @@ static int rsnd_status_update(u32 *status,
 			(func_call && (mod)->ops->fn) ? #fn : "");	\
 		if (func_call && (mod)->ops->fn)			\
 			tmp = (mod)->ops->fn(mod, io, param);		\
-		if (tmp)						\
+		if (tmp && (tmp != -EPROBE_DEFER))			\
 			dev_err(dev, "%s[%d] : %s error %d\n",		\
 				rsnd_mod_name(mod), rsnd_mod_id(mod),	\
 						     #fn, tmp);		\
@@ -958,12 +958,23 @@ static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
 	rsnd_dai_stream_quit(io);
 }
 
+static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
+	struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
+	struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
+
+	return rsnd_dai_call(prepare, io, priv);
+}
+
 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
 	.startup	= rsnd_soc_dai_startup,
 	.shutdown	= rsnd_soc_dai_shutdown,
 	.trigger	= rsnd_soc_dai_trigger,
 	.set_fmt	= rsnd_soc_dai_set_fmt,
 	.set_tdm_slot	= rsnd_soc_set_dai_tdm_slot,
+	.prepare	= rsnd_soc_dai_prepare,
 };
 
 void rsnd_parse_connect_common(struct rsnd_dai *rdai,
@@ -1550,6 +1561,14 @@ exit_snd_probe:
 		rsnd_dai_call(remove, &rdai->capture, priv);
 	}
 
+	/*
+	 * adg is very special mod which can't use rsnd_dai_call(remove),
+	 * and it registers ADG clock on probe.
+	 * It should be unregister if probe failed.
+	 * Mainly it is assuming -EPROBE_DEFER case
+	 */
+	rsnd_adg_remove(priv);
+
 	return ret;
 }
 
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index fe63ef8600d0..d65ea7bc4dac 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -241,6 +241,10 @@ static int rsnd_dmaen_attach(struct rsnd_dai_stream *io,
 	/* try to get DMAEngine channel */
 	chan = rsnd_dmaen_request_channel(io, mod_from, mod_to);
 	if (IS_ERR_OR_NULL(chan)) {
+		/* Let's follow when -EPROBE_DEFER case */
+		if (PTR_ERR(chan) == -EPROBE_DEFER)
+			return PTR_ERR(chan);
+
 		/*
 		 * DMA failed. try to PIO mode
 		 * see
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 96d93330b1e1..8f7a0abfa751 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -280,6 +280,9 @@ struct rsnd_mod_ops {
 	int (*nolock_stop)(struct rsnd_mod *mod,
 		    struct rsnd_dai_stream *io,
 		    struct rsnd_priv *priv);
+	int (*prepare)(struct rsnd_mod *mod,
+		       struct rsnd_dai_stream *io,
+		       struct rsnd_priv *priv);
 };
 
 struct rsnd_dai_stream;
@@ -309,6 +312,7 @@ struct rsnd_mod {
  * H	0: fallback
  * H	0: hw_params
  * H	0: pointer
+ * H	0: prepare
  */
 #define __rsnd_mod_shift_nolock_start	0
 #define __rsnd_mod_shift_nolock_stop	0
@@ -323,6 +327,7 @@ struct rsnd_mod {
 #define __rsnd_mod_shift_fallback	28 /* always called */
 #define __rsnd_mod_shift_hw_params	28 /* always called */
 #define __rsnd_mod_shift_pointer	28 /* always called */
+#define __rsnd_mod_shift_prepare	28 /* always called */
 
 #define __rsnd_mod_add_probe		0
 #define __rsnd_mod_add_remove		0
@@ -337,6 +342,7 @@ struct rsnd_mod {
 #define __rsnd_mod_add_fallback		0
 #define __rsnd_mod_add_hw_params	0
 #define __rsnd_mod_add_pointer		0
+#define __rsnd_mod_add_prepare		0
 
 #define __rsnd_mod_call_probe		0
 #define __rsnd_mod_call_remove		0
@@ -351,6 +357,7 @@ struct rsnd_mod {
 #define __rsnd_mod_call_pointer		0
 #define __rsnd_mod_call_nolock_start	0
 #define __rsnd_mod_call_nolock_stop	1
+#define __rsnd_mod_call_prepare		0
 
 #define rsnd_mod_to_priv(mod)	((mod)->priv)
 #define rsnd_mod_name(mod)	((mod)->ops->name)
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 8304e4ec9242..3f880ec66459 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -283,7 +283,7 @@ static int rsnd_ssi_master_clk_start(struct rsnd_mod *mod,
 	if (rsnd_ssi_is_multi_slave(mod, io))
 		return 0;
 
-	if (ssi->usrcnt > 1) {
+	if (ssi->rate) {
 		if (ssi->rate != rate) {
 			dev_err(dev, "SSI parent/child should use same rate\n");
 			return -EINVAL;
@@ -434,7 +434,6 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 			 struct rsnd_priv *priv)
 {
 	struct rsnd_ssi *ssi = rsnd_mod_to_ssi(mod);
-	int ret;
 
 	if (!rsnd_ssi_is_run_mods(mod, io))
 		return 0;
@@ -443,10 +442,6 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 
 	rsnd_mod_power_on(mod);
 
-	ret = rsnd_ssi_master_clk_start(mod, io);
-	if (ret < 0)
-		return ret;
-
 	rsnd_ssi_config_init(mod, io);
 
 	rsnd_ssi_register_setup(mod);
@@ -852,6 +847,13 @@ static int rsnd_ssi_pio_pointer(struct rsnd_mod *mod,
 	return 0;
 }
 
+static int rsnd_ssi_prepare(struct rsnd_mod *mod,
+			    struct rsnd_dai_stream *io,
+			    struct rsnd_priv *priv)
+{
+	return rsnd_ssi_master_clk_start(mod, io);
+}
+
 static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
 	.name	= SSI_NAME,
 	.probe	= rsnd_ssi_common_probe,
@@ -864,6 +866,7 @@ static struct rsnd_mod_ops rsnd_ssi_pio_ops = {
 	.pointer = rsnd_ssi_pio_pointer,
 	.pcm_new = rsnd_ssi_pcm_new,
 	.hw_params = rsnd_ssi_hw_params,
+	.prepare = rsnd_ssi_prepare,
 };
 
 static int rsnd_ssi_dma_probe(struct rsnd_mod *mod,
@@ -940,6 +943,7 @@ static struct rsnd_mod_ops rsnd_ssi_dma_ops = {
 	.pcm_new = rsnd_ssi_pcm_new,
 	.fallback = rsnd_ssi_fallback,
 	.hw_params = rsnd_ssi_hw_params,
+	.prepare = rsnd_ssi_prepare,
 };
 
 int rsnd_ssi_is_dma_mode(struct rsnd_mod *mod)