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From: John Keeping <john@metanate.com>
To: alsa-devel@alsa-project.org
Cc: Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>, Heiko Stuebner <heiko@sntech.de>,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	Enric Balletbo Serra <eballetbo@gmail.com>,
	John Keeping <john@metanate.com>
Subject: [PATCH v2 1/2] ASoC: rockchip: Revert "ASoC: rockchip: i2s: remove unused variables"
Date: Wed,  4 May 2016 17:21:56 +0100	[thread overview]
Message-ID: <1462378917-24135-1-git-send-email-john@metanate.com> (raw)

This reverts commit 5938448b99275cba95167c3f9d39ca9225fdad38.

It turns out that the commit that made these variables unused is wrong
so we're about to revert it.  Bring back the variables in prepration.

Signed-off-by: John Keeping <john@metanate.com>
---
v2: Add "ASoC: rockchip: " prefix to subject

 sound/soc/rockchip/rockchip_i2s.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 2f8e20416bd3..34743ec61c49 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -34,6 +34,13 @@ struct rk_i2s_dev {
 
 	struct regmap *regmap;
 
+/*
+ * Used to indicate the tx/rx status.
+ * I2S controller hopes to start the tx and rx together,
+ * also to stop them when they are both try to stop.
+*/
+	bool tx_start;
+	bool rx_start;
 	bool is_master_mode;
 };
 
@@ -77,7 +84,11 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 		regmap_update_bits(i2s->regmap, I2S_XFER,
 				   I2S_XFER_TXS_START,
 				   I2S_XFER_TXS_START);
+
+		i2s->tx_start = true;
 	} else {
+		i2s->tx_start = false;
+
 		regmap_update_bits(i2s->regmap, I2S_DMACR,
 				   I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
 
@@ -115,7 +126,11 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
 		regmap_update_bits(i2s->regmap, I2S_XFER,
 				   I2S_XFER_RXS_START,
 				   I2S_XFER_RXS_START);
+
+		i2s->rx_start = true;
 	} else {
+		i2s->rx_start = false;
+
 		regmap_update_bits(i2s->regmap, I2S_DMACR,
 				   I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
 
-- 
2.8.0.rc4.238.g874082a

WARNING: multiple messages have this Message-ID (diff)
From: john@metanate.com (John Keeping)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] ASoC: rockchip: Revert "ASoC: rockchip: i2s: remove unused variables"
Date: Wed,  4 May 2016 17:21:56 +0100	[thread overview]
Message-ID: <1462378917-24135-1-git-send-email-john@metanate.com> (raw)

This reverts commit 5938448b99275cba95167c3f9d39ca9225fdad38.

It turns out that the commit that made these variables unused is wrong
so we're about to revert it.  Bring back the variables in prepration.

Signed-off-by: John Keeping <john@metanate.com>
---
v2: Add "ASoC: rockchip: " prefix to subject

 sound/soc/rockchip/rockchip_i2s.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index 2f8e20416bd3..34743ec61c49 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -34,6 +34,13 @@ struct rk_i2s_dev {
 
 	struct regmap *regmap;
 
+/*
+ * Used to indicate the tx/rx status.
+ * I2S controller hopes to start the tx and rx together,
+ * also to stop them when they are both try to stop.
+*/
+	bool tx_start;
+	bool rx_start;
 	bool is_master_mode;
 };
 
@@ -77,7 +84,11 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on)
 		regmap_update_bits(i2s->regmap, I2S_XFER,
 				   I2S_XFER_TXS_START,
 				   I2S_XFER_TXS_START);
+
+		i2s->tx_start = true;
 	} else {
+		i2s->tx_start = false;
+
 		regmap_update_bits(i2s->regmap, I2S_DMACR,
 				   I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_DISABLE);
 
@@ -115,7 +126,11 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
 		regmap_update_bits(i2s->regmap, I2S_XFER,
 				   I2S_XFER_RXS_START,
 				   I2S_XFER_RXS_START);
+
+		i2s->rx_start = true;
 	} else {
+		i2s->rx_start = false;
+
 		regmap_update_bits(i2s->regmap, I2S_DMACR,
 				   I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_DISABLE);
 
-- 
2.8.0.rc4.238.g874082a

             reply	other threads:[~2016-05-04 16:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-04 16:21 John Keeping [this message]
2016-05-04 16:21 ` [PATCH v2 1/2] ASoC: rockchip: Revert "ASoC: rockchip: i2s: remove unused variables" John Keeping
2016-05-04 16:21 ` [PATCH v2 2/2] ASoC: rockchip: Revert "ASoC: rockchip: i2s: separate capture and playback" John Keeping
2016-05-04 16:21   ` John Keeping
2016-05-04 16:21   ` John Keeping

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