These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 159 insertions, 171 deletions

diff --git a/kernel/drivers/media/tuners/tua9001.c b/kernel/drivers/media/tuners/tua9001.c
index 83a6240f6..9d70378fe 100644
--- a/kernel/drivers/media/tuners/tua9001.c
+++ b/kernel/drivers/media/tuners/tua9001.c
@@ -1,5 +1,5 @@
 /*
- * Infineon TUA 9001 silicon tuner driver
+ * Infineon TUA9001 silicon tuner driver
  *
  * Copyright (C) 2009 Antti Palosaari <crope@iki.fi>
  *
@@ -12,138 +12,87 @@
  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License along
- *    with this program; if not, write to the Free Software Foundation, Inc.,
- *    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include "tua9001.h"
 #include "tua9001_priv.h"
 
-/* write register */
-static int tua9001_wr_reg(struct tua9001_priv *priv, u8 reg, u16 val)
-{
-	int ret;
-	u8 buf[3] = { reg, (val >> 8) & 0xff, (val >> 0) & 0xff };
-	struct i2c_msg msg[1] = {
-		{
-			.addr = priv->cfg->i2c_addr,
-			.flags = 0,
-			.len = sizeof(buf),
-			.buf = buf,
-		}
-	};
-
-	ret = i2c_transfer(priv->i2c, msg, 1);
-	if (ret == 1) {
-		ret = 0;
-	} else {
-		dev_warn(&priv->i2c->dev, "%s: i2c wr failed=%d reg=%02x\n",
-				KBUILD_MODNAME, ret, reg);
-		ret = -EREMOTEIO;
-	}
-
-	return ret;
-}
-
-static int tua9001_release(struct dvb_frontend *fe)
-{
-	struct tua9001_priv *priv = fe->tuner_priv;
-	int ret = 0;
-
-	dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
-
-	if (fe->callback)
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_CEN, 0);
-
-	kfree(fe->tuner_priv);
-	fe->tuner_priv = NULL;
-
-	return ret;
-}
-
 static int tua9001_init(struct dvb_frontend *fe)
 {
-	struct tua9001_priv *priv = fe->tuner_priv;
-	int ret = 0;
-	u8 i;
-	struct reg_val data[] = {
-		{ 0x1e, 0x6512 },
-		{ 0x25, 0xb888 },
-		{ 0x39, 0x5460 },
-		{ 0x3b, 0x00c0 },
-		{ 0x3a, 0xf000 },
-		{ 0x08, 0x0000 },
-		{ 0x32, 0x0030 },
-		{ 0x41, 0x703a },
-		{ 0x40, 0x1c78 },
-		{ 0x2c, 0x1c00 },
-		{ 0x36, 0xc013 },
-		{ 0x37, 0x6f18 },
-		{ 0x27, 0x0008 },
-		{ 0x2a, 0x0001 },
-		{ 0x34, 0x0a40 },
+	struct tua9001_dev *dev = fe->tuner_priv;
+	struct i2c_client *client = dev->client;
+	int ret, i;
+	static const struct tua9001_reg_val data[] = {
+		{0x1e, 0x6512},
+		{0x25, 0xb888},
+		{0x39, 0x5460},
+		{0x3b, 0x00c0},
+		{0x3a, 0xf000},
+		{0x08, 0x0000},
+		{0x32, 0x0030},
+		{0x41, 0x703a},
+		{0x40, 0x1c78},
+		{0x2c, 0x1c00},
+		{0x36, 0xc013},
+		{0x37, 0x6f18},
+		{0x27, 0x0008},
+		{0x2a, 0x0001},
+		{0x34, 0x0a40},
 	};
 
-	dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
+	dev_dbg(&client->dev, "\n");
 
 	if (fe->callback) {
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_RESETN, 0);
-		if (ret < 0)
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_RESETN, 0);
+		if (ret)
 			goto err;
 	}
 
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c-gate */
-
 	for (i = 0; i < ARRAY_SIZE(data); i++) {
-		ret = tua9001_wr_reg(priv, data[i].reg, data[i].val);
-		if (ret < 0)
-			goto err_i2c_gate_ctrl;
+		ret = regmap_write(dev->regmap, data[i].reg, data[i].val);
+		if (ret)
+			goto err;
 	}
-
-err_i2c_gate_ctrl:
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c-gate */
+	return 0;
 err:
-	if (ret < 0)
-		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
-
+	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
 
 static int tua9001_sleep(struct dvb_frontend *fe)
 {
-	struct tua9001_priv *priv = fe->tuner_priv;
-	int ret = 0;
-
-	dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
-
-	if (fe->callback)
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_RESETN, 1);
+	struct tua9001_dev *dev = fe->tuner_priv;
+	struct i2c_client *client = dev->client;
+	int ret;
 
-	if (ret < 0)
-		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
+	dev_dbg(&client->dev, "\n");
 
+	if (fe->callback) {
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_RESETN, 1);
+		if (ret)
+			goto err;
+	}
+	return 0;
+err:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
 
 static int tua9001_set_params(struct dvb_frontend *fe)
 {
-	struct tua9001_priv *priv = fe->tuner_priv;
+	struct tua9001_dev *dev = fe->tuner_priv;
+	struct i2c_client *client = dev->client;
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	int ret = 0, i;
+	int ret, i;
 	u16 val;
-	u32 frequency;
-	struct reg_val data[2];
+	struct tua9001_reg_val data[2];
 
-	dev_dbg(&priv->i2c->dev, "%s: delivery_system=%d frequency=%d " \
-			"bandwidth_hz=%d\n", __func__,
-			c->delivery_system, c->frequency, c->bandwidth_hz);
+	dev_dbg(&client->dev,
+		"delivery_system=%u frequency=%u bandwidth_hz=%u\n",
+		c->delivery_system, c->frequency, c->bandwidth_hz);
 
 	switch (c->delivery_system) {
 	case SYS_DVBT:
@@ -172,70 +121,54 @@ static int tua9001_set_params(struct dvb_frontend *fe)
 
 	data[0].reg = 0x04;
 	data[0].val = val;
-
-	frequency = (c->frequency - 150000000);
-	frequency /= 100;
-	frequency *= 48;
-	frequency /= 10000;
-
 	data[1].reg = 0x1f;
-	data[1].val = frequency;
-
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 1); /* open i2c-gate */
+	data[1].val = div_u64((u64) (c->frequency - 150000000) * 48, 1000000);
 
 	if (fe->callback) {
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_RXEN, 0);
-		if (ret < 0)
-			goto err_i2c_gate_ctrl;
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_RXEN, 0);
+		if (ret)
+			goto err;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(data); i++) {
-		ret = tua9001_wr_reg(priv, data[i].reg, data[i].val);
-		if (ret < 0)
-			goto err_i2c_gate_ctrl;
+		ret = regmap_write(dev->regmap, data[i].reg, data[i].val);
+		if (ret)
+			goto err;
 	}
 
 	if (fe->callback) {
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_RXEN, 1);
-		if (ret < 0)
-			goto err_i2c_gate_ctrl;
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_RXEN, 1);
+		if (ret)
+			goto err;
 	}
-
-err_i2c_gate_ctrl:
-	if (fe->ops.i2c_gate_ctrl)
-		fe->ops.i2c_gate_ctrl(fe, 0); /* close i2c-gate */
+	return 0;
 err:
-	if (ret < 0)
-		dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret);
-
+	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
 
 static int tua9001_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
 {
-	struct tua9001_priv *priv = fe->tuner_priv;
+	struct tua9001_dev *dev = fe->tuner_priv;
+	struct i2c_client *client = dev->client;
 
-	dev_dbg(&priv->i2c->dev, "%s:\n", __func__);
+	dev_dbg(&client->dev, "\n");
 
 	*frequency = 0; /* Zero-IF */
-
 	return 0;
 }
 
 static const struct dvb_tuner_ops tua9001_tuner_ops = {
 	.info = {
-		.name           = "Infineon TUA 9001",
-
+		.name           = "Infineon TUA9001",
 		.frequency_min  = 170000000,
 		.frequency_max  = 862000000,
-		.frequency_step = 0,
 	},
 
-	.release = tua9001_release,
-
 	.init = tua9001_init,
 	.sleep = tua9001_sleep,
 	.set_params = tua9001_set_params,
@@ -243,52 +176,107 @@ static const struct dvb_tuner_ops tua9001_tuner_ops = {
 	.get_if_frequency = tua9001_get_if_frequency,
 };
 
-struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
-		struct i2c_adapter *i2c, struct tua9001_config *cfg)
+static int tua9001_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
 {
-	struct tua9001_priv *priv = NULL;
+	struct tua9001_dev *dev;
+	struct tua9001_platform_data *pdata = client->dev.platform_data;
+	struct dvb_frontend *fe = pdata->dvb_frontend;
 	int ret;
+	static const struct regmap_config regmap_config = {
+		.reg_bits =  8,
+		.val_bits = 16,
+	};
 
-	priv = kzalloc(sizeof(struct tua9001_priv), GFP_KERNEL);
-	if (priv == NULL)
-		return NULL;
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		ret = -ENOMEM;
+		goto err;
+	}
 
-	priv->cfg = cfg;
-	priv->i2c = i2c;
+	dev->fe = pdata->dvb_frontend;
+	dev->client = client;
+	dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
+	if (IS_ERR(dev->regmap)) {
+		ret = PTR_ERR(dev->regmap);
+		goto err_kfree;
+	}
 
 	if (fe->callback) {
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_CEN, 1);
-		if (ret < 0)
-			goto err;
-
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_RXEN, 0);
-		if (ret < 0)
-			goto err;
-
-		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-				TUA9001_CMD_RESETN, 1);
-		if (ret < 0)
-			goto err;
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_CEN, 1);
+		if (ret)
+			goto err_kfree;
+
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_RXEN, 0);
+		if (ret)
+			goto err_kfree;
+
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_RESETN, 1);
+		if (ret)
+			goto err_kfree;
 	}
 
-	dev_info(&priv->i2c->dev,
-			"%s: Infineon TUA 9001 successfully attached\n",
-			KBUILD_MODNAME);
-
+	fe->tuner_priv = dev;
 	memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops,
 			sizeof(struct dvb_tuner_ops));
+	i2c_set_clientdata(client, dev);
 
-	fe->tuner_priv = priv;
-	return fe;
+	dev_info(&client->dev, "Infineon TUA9001 successfully attached\n");
+	return 0;
+err_kfree:
+	kfree(dev);
 err:
-	dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret);
-	kfree(priv);
-	return NULL;
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static int tua9001_remove(struct i2c_client *client)
+{
+	struct tua9001_dev *dev = i2c_get_clientdata(client);
+	struct dvb_frontend *fe = dev->fe;
+	int ret;
+
+	dev_dbg(&client->dev, "\n");
+
+	if (fe->callback) {
+		ret = fe->callback(client->adapter,
+				   DVB_FRONTEND_COMPONENT_TUNER,
+				   TUA9001_CMD_CEN, 0);
+		if (ret)
+			goto err_kfree;
+	}
+	kfree(dev);
+	return 0;
+err_kfree:
+	kfree(dev);
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
 }
-EXPORT_SYMBOL(tua9001_attach);
 
-MODULE_DESCRIPTION("Infineon TUA 9001 silicon tuner driver");
+static const struct i2c_device_id tua9001_id_table[] = {
+	{"tua9001", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, tua9001_id_table);
+
+static struct i2c_driver tua9001_driver = {
+	.driver = {
+		.name	= "tua9001",
+		.suppress_bind_attrs = true,
+	},
+	.probe		= tua9001_probe,
+	.remove		= tua9001_remove,
+	.id_table	= tua9001_id_table,
+};
+
+module_i2c_driver(tua9001_driver);
+
+MODULE_DESCRIPTION("Infineon TUA9001 silicon tuner driver");
 MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
 MODULE_LICENSE("GPL");