linux-kernel - [PATCH v5 05/15] ASoC: sun4i-i2s: Add functions for RX and TX channel offsets

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190814060854.26345-6-codekipper@gmail.com>
Date:   Wed, 14 Aug 2019 08:08:44 +0200
From:   codekipper@...il.com
To:     maxime.ripard@...e-electrons.com, wens@...e.org,
        linux-sunxi@...glegroups.com
Cc:     linux-arm-kernel@...ts.infradead.org, lgirdwood@...il.com,
        broonie@...nel.org, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org, be17068@...rbole.bo.it,
        Marcus Cooper <codekipper@...il.com>
Subject: [PATCH v5 05/15] ASoC: sun4i-i2s: Add functions for RX and TX channel offsets

From: Marcus Cooper <codekipper@...il.com>

Newer SoCs like the H6 have the channel offset bits in a different
position to what is on the H3. As we will eventually add multi-
channel support then create function calls as opposed to regmap
fields to add support for different devices.

Signed-off-by: Marcus Cooper <codekipper@...il.com>
---
 sound/soc/sunxi/sun4i-i2s.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 3553c17318b0..4a748747ccd7 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -112,7 +112,7 @@
 #define SUN8I_I2S_TX_CHAN_MAP_REG	0x44
 #define SUN8I_I2S_TX_CHAN_SEL_REG	0x34
 #define SUN8I_I2S_TX_CHAN_OFFSET_MASK		GENMASK(13, 12)
-#define SUN8I_I2S_TX_CHAN_OFFSET(offset)	(offset << 12)
+#define SUN8I_I2S_TX_CHAN_OFFSET(offset)	((offset) << 12)
 #define SUN8I_I2S_TX_CHAN_EN_MASK		GENMASK(11, 4)
 #define SUN8I_I2S_TX_CHAN_EN(num_chan)		(((1 << num_chan) - 1) << 4)
 
@@ -170,6 +170,8 @@ struct sun4i_i2s_quirks {
 	s8	(*get_sr)(const struct sun4i_i2s *, int);
 	s8	(*get_wss)(const struct sun4i_i2s *, int);
 	int	(*set_format)(struct sun4i_i2s *, unsigned int);
+	void	(*set_txchanoffset)(const struct sun4i_i2s *, int);
+	void	(*set_rxchanoffset)(const struct sun4i_i2s *);
 };
 
 struct sun4i_i2s {
@@ -424,6 +426,24 @@ static s8 sun8i_i2s_get_sr_wss(const struct sun4i_i2s *i2s, int width)
 	return (width - 8) / 4 + 1;
 }
 
+static void sun8i_i2s_set_txchanoffset(const struct sun4i_i2s *i2s, int output)
+{
+	if (output >= 0 && output < 4) {
+		regmap_update_bits(i2s->regmap,
+				   SUN8I_I2S_TX_CHAN_SEL_REG + (output * 4),
+				   SUN8I_I2S_TX_CHAN_OFFSET_MASK,
+				   SUN8I_I2S_TX_CHAN_OFFSET(i2s->offset));
+	}
+}
+
+static void sun8i_i2s_set_rxchanoffset(const struct sun4i_i2s *i2s)
+{
+	regmap_update_bits(i2s->regmap,
+			   SUN8I_I2S_RX_CHAN_SEL_REG,
+			   SUN8I_I2S_TX_CHAN_OFFSET_MASK,
+			   SUN8I_I2S_TX_CHAN_OFFSET(i2s->offset));
+}
+
 static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
 			       struct snd_pcm_hw_params *params,
 			       struct snd_soc_dai *dai)
@@ -1076,6 +1096,8 @@ static const struct sun4i_i2s_quirks sun8i_h3_i2s_quirks = {
 	.get_sr			= sun8i_i2s_get_sr_wss,
 	.get_wss		= sun8i_i2s_get_sr_wss,
 	.set_format		= sun8i_i2s_set_format,
+	.set_txchanoffset	= sun8i_i2s_set_txchanoffset,
+	.set_rxchanoffset	= sun8i_i2s_set_rxchanoffset,
 };
 
 static const struct sun4i_i2s_quirks sun50i_a64_codec_i2s_quirks = {
-- 
2.22.0