[PATCH 0/4] move mn88473 out of staging

[PATCH 0/4] move mn88473 out of staging

[Antti Palosaari]

These patches are available also:
http://git.linuxtv.org/anttip/media_tree.git/log/?h=astrometa

Firmware:
http://palosaari.fi/linux/v4l-dvb/firmware/MN88473/01/

Antti

Antti Palosaari (4):
  mn88473: move out of staging
  mn88473: finalize driver
  rtl2832: improve slave TS control
  rtl2832: move stats polling to read status

 MAINTAINERS                                  |   4 +-
 drivers/media/dvb-frontends/Kconfig          |   8 +
 drivers/media/dvb-frontends/Makefile         |   1 +
 drivers/media/dvb-frontends/mn88473.c        | 606 +++++++++++++++++++++++++++
 drivers/media/dvb-frontends/mn88473.h        |  14 +-
 drivers/media/dvb-frontends/mn88473_priv.h   |  36 ++
 drivers/media/dvb-frontends/rtl2832.c        | 151 ++++---
 drivers/media/dvb-frontends/rtl2832.h        |   4 +-
 drivers/media/dvb-frontends/rtl2832_priv.h   |   1 -
 drivers/media/usb/dvb-usb-v2/rtl28xxu.c      |  24 +-
 drivers/staging/media/Kconfig                |   2 -
 drivers/staging/media/Makefile               |   1 -
 drivers/staging/media/mn88473/Kconfig        |   7 -
 drivers/staging/media/mn88473/Makefile       |   5 -
 drivers/staging/media/mn88473/TODO           |  21 -
 drivers/staging/media/mn88473/mn88473.c      | 522 -----------------------
 drivers/staging/media/mn88473/mn88473_priv.h |  37 --
 17 files changed, 743 insertions(+), 701 deletions(-)
 create mode 100644 drivers/media/dvb-frontends/mn88473.c
 create mode 100644 drivers/media/dvb-frontends/mn88473_priv.h
 delete mode 100644 drivers/staging/media/mn88473/Kconfig
 delete mode 100644 drivers/staging/media/mn88473/Makefile
 delete mode 100644 drivers/staging/media/mn88473/TODO
 delete mode 100644 drivers/staging/media/mn88473/mn88473.c
 delete mode 100644 drivers/staging/media/mn88473/mn88473_priv.h

-- 
http://palosaari.fi/

[PATCH 1/4] mn88473: move out of staging

[Antti Palosaari]

Move driver to drivers.

Signed-off-by: Antti Palosaari <crope@iki.fi>
---
 MAINTAINERS                                  |   4 +-
 drivers/media/dvb-frontends/Kconfig          |   8 +
 drivers/media/dvb-frontends/Makefile         |   1 +
 drivers/media/dvb-frontends/mn88473.c        | 522 +++++++++++++++++++++++++++
 drivers/media/dvb-frontends/mn88473_priv.h   |  37 ++
 drivers/staging/media/Kconfig                |   2 -
 drivers/staging/media/Makefile               |   1 -
 drivers/staging/media/mn88473/Kconfig        |   7 -
 drivers/staging/media/mn88473/Makefile       |   5 -
 drivers/staging/media/mn88473/TODO           |  21 --
 drivers/staging/media/mn88473/mn88473.c      | 522 ---------------------------
 drivers/staging/media/mn88473/mn88473_priv.h |  37 --
 12 files changed, 569 insertions(+), 598 deletions(-)
 create mode 100644 drivers/media/dvb-frontends/mn88473.c
 create mode 100644 drivers/media/dvb-frontends/mn88473_priv.h
 delete mode 100644 drivers/staging/media/mn88473/Kconfig
 delete mode 100644 drivers/staging/media/mn88473/Makefile
 delete mode 100644 drivers/staging/media/mn88473/TODO
 delete mode 100644 drivers/staging/media/mn88473/mn88473.c
 delete mode 100644 drivers/staging/media/mn88473/mn88473_priv.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 9f1a401..de9b82c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7229,10 +7229,8 @@ L:	linux-media@vger.kernel.org
 W:	https://linuxtv.org
 W:	http://palosaari.fi/linux/
 Q:	http://patchwork.linuxtv.org/project/linux-media/list/
-T:	git git://linuxtv.org/anttip/media_tree.git
 S:	Maintained
-F:	drivers/staging/media/mn88473/
-F:	drivers/media/dvb-frontends/mn88473.h
+F:	drivers/media/dvb-frontends/mn88473*
 
 MODULE SUPPORT
 M:	Rusty Russell <rusty@rustcorp.com.au>
diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig
index 310e4b8..a82f77c 100644
--- a/drivers/media/dvb-frontends/Kconfig
+++ b/drivers/media/dvb-frontends/Kconfig
@@ -73,6 +73,14 @@ config DVB_SI2165
 
 	  Say Y when you want to support this frontend.
 
+config DVB_MN88473
+	tristate "Panasonic MN88473"
+	depends on DVB_CORE && I2C
+	select REGMAP_I2C
+	default m if !MEDIA_SUBDRV_AUTOSELECT
+	help
+	  Say Y when you want to support this frontend.
+
 comment "DVB-S (satellite) frontends"
 	depends on DVB_CORE
 
diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile
index 37ef17b..eb7191f 100644
--- a/drivers/media/dvb-frontends/Makefile
+++ b/drivers/media/dvb-frontends/Makefile
@@ -95,6 +95,7 @@ obj-$(CONFIG_DVB_STV0900) += stv0900.o
 obj-$(CONFIG_DVB_STV090x) += stv090x.o
 obj-$(CONFIG_DVB_STV6110x) += stv6110x.o
 obj-$(CONFIG_DVB_M88DS3103) += m88ds3103.o
+obj-$(CONFIG_DVB_MN88473) += mn88473.o
 obj-$(CONFIG_DVB_ISL6423) += isl6423.o
 obj-$(CONFIG_DVB_EC100) += ec100.o
 obj-$(CONFIG_DVB_HD29L2) += hd29l2.o
diff --git a/drivers/media/dvb-frontends/mn88473.c b/drivers/media/dvb-frontends/mn88473.c
new file mode 100644
index 0000000..a222e99
--- /dev/null
+++ b/drivers/media/dvb-frontends/mn88473.c
@@ -0,0 +1,522 @@
+/*
+ * Panasonic MN88473 DVB-T/T2/C demodulator driver
+ *
+ * Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    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.
+ */
+
+#include "mn88473_priv.h"
+
+static int mn88473_get_tune_settings(struct dvb_frontend *fe,
+				     struct dvb_frontend_tune_settings *s)
+{
+	s->min_delay_ms = 1000;
+	return 0;
+}
+
+static int mn88473_set_frontend(struct dvb_frontend *fe)
+{
+	struct i2c_client *client = fe->demodulator_priv;
+	struct mn88473_dev *dev = i2c_get_clientdata(client);
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int ret, i;
+	u32 if_frequency;
+	u64 tmp;
+	u8 delivery_system_val, if_val[3], bw_val[7];
+
+	dev_dbg(&client->dev,
+		"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
+		c->delivery_system,
+		c->modulation,
+		c->frequency,
+		c->bandwidth_hz,
+		c->symbol_rate,
+		c->inversion,
+		c->stream_id);
+
+	if (!dev->warm) {
+		ret = -EAGAIN;
+		goto err;
+	}
+
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+		delivery_system_val = 0x02;
+		break;
+	case SYS_DVBT2:
+		delivery_system_val = 0x03;
+		break;
+	case SYS_DVBC_ANNEX_A:
+		delivery_system_val = 0x04;
+		break;
+	default:
+		ret = -EINVAL;
+		goto err;
+	}
+
+	if (c->bandwidth_hz <= 6000000) {
+		memcpy(bw_val, "\xe9\x55\x55\x1c\x29\x1c\x29", 7);
+	} else if (c->bandwidth_hz <= 7000000) {
+		memcpy(bw_val, "\xc8\x00\x00\x17\x0a\x17\x0a", 7);
+	} else if (c->bandwidth_hz <= 8000000) {
+		memcpy(bw_val, "\xaf\x00\x00\x11\xec\x11\xec", 7);
+	} else {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* program tuner */
+	if (fe->ops.tuner_ops.set_params) {
+		ret = fe->ops.tuner_ops.set_params(fe);
+		if (ret)
+			goto err;
+	}
+
+	if (fe->ops.tuner_ops.get_if_frequency) {
+		ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
+		if (ret)
+			goto err;
+
+		dev_dbg(&client->dev, "get_if_frequency=%d\n", if_frequency);
+	} else {
+		if_frequency = 0;
+	}
+
+	/* Calculate IF registers ( (1<<24)*IF / Xtal ) */
+	tmp =  div_u64(if_frequency * (u64)(1<<24) + (dev->xtal / 2),
+				   dev->xtal);
+	if_val[0] = ((tmp >> 16) & 0xff);
+	if_val[1] = ((tmp >>  8) & 0xff);
+	if_val[2] = ((tmp >>  0) & 0xff);
+
+	ret = regmap_write(dev->regmap[2], 0x05, 0x00);
+	ret = regmap_write(dev->regmap[2], 0xfb, 0x13);
+	ret = regmap_write(dev->regmap[2], 0xef, 0x13);
+	ret = regmap_write(dev->regmap[2], 0xf9, 0x13);
+	ret = regmap_write(dev->regmap[2], 0x00, 0x18);
+	ret = regmap_write(dev->regmap[2], 0x01, 0x01);
+	ret = regmap_write(dev->regmap[2], 0x02, 0x21);
+	ret = regmap_write(dev->regmap[2], 0x03, delivery_system_val);
+	ret = regmap_write(dev->regmap[2], 0x0b, 0x00);
+
+	for (i = 0; i < sizeof(if_val); i++) {
+		ret = regmap_write(dev->regmap[2], 0x10 + i, if_val[i]);
+		if (ret)
+			goto err;
+	}
+
+	for (i = 0; i < sizeof(bw_val); i++) {
+		ret = regmap_write(dev->regmap[2], 0x13 + i, bw_val[i]);
+		if (ret)
+			goto err;
+	}
+
+	ret = regmap_write(dev->regmap[2], 0x2d, 0x3b);
+	ret = regmap_write(dev->regmap[2], 0x2e, 0x00);
+	ret = regmap_write(dev->regmap[2], 0x56, 0x0d);
+	ret = regmap_write(dev->regmap[0], 0x01, 0xba);
+	ret = regmap_write(dev->regmap[0], 0x02, 0x13);
+	ret = regmap_write(dev->regmap[0], 0x03, 0x80);
+	ret = regmap_write(dev->regmap[0], 0x04, 0xba);
+	ret = regmap_write(dev->regmap[0], 0x05, 0x91);
+	ret = regmap_write(dev->regmap[0], 0x07, 0xe7);
+	ret = regmap_write(dev->regmap[0], 0x08, 0x28);
+	ret = regmap_write(dev->regmap[0], 0x0a, 0x1a);
+	ret = regmap_write(dev->regmap[0], 0x13, 0x1f);
+	ret = regmap_write(dev->regmap[0], 0x19, 0x03);
+	ret = regmap_write(dev->regmap[0], 0x1d, 0xb0);
+	ret = regmap_write(dev->regmap[0], 0x2a, 0x72);
+	ret = regmap_write(dev->regmap[0], 0x2d, 0x00);
+	ret = regmap_write(dev->regmap[0], 0x3c, 0x00);
+	ret = regmap_write(dev->regmap[0], 0x3f, 0xf8);
+	ret = regmap_write(dev->regmap[0], 0x40, 0xf4);
+	ret = regmap_write(dev->regmap[0], 0x41, 0x08);
+	ret = regmap_write(dev->regmap[0], 0xd2, 0x29);
+	ret = regmap_write(dev->regmap[0], 0xd4, 0x55);
+	ret = regmap_write(dev->regmap[1], 0x10, 0x10);
+	ret = regmap_write(dev->regmap[1], 0x11, 0xab);
+	ret = regmap_write(dev->regmap[1], 0x12, 0x0d);
+	ret = regmap_write(dev->regmap[1], 0x13, 0xae);
+	ret = regmap_write(dev->regmap[1], 0x14, 0x1d);
+	ret = regmap_write(dev->regmap[1], 0x15, 0x9d);
+	ret = regmap_write(dev->regmap[1], 0xbe, 0x08);
+	ret = regmap_write(dev->regmap[2], 0x09, 0x08);
+	ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
+	ret = regmap_write(dev->regmap[0], 0xb2, 0x37);
+	ret = regmap_write(dev->regmap[0], 0xd7, 0x04);
+	ret = regmap_write(dev->regmap[2], 0x32, 0x80);
+	ret = regmap_write(dev->regmap[2], 0x36, 0x00);
+	ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
+	if (ret)
+		goto err;
+
+	dev->delivery_system = c->delivery_system;
+
+	return 0;
+err:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static int mn88473_read_status(struct dvb_frontend *fe, enum fe_status *status)
+{
+	struct i2c_client *client = fe->demodulator_priv;
+	struct mn88473_dev *dev = i2c_get_clientdata(client);
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	int ret;
+	unsigned int utmp;
+	int lock = 0;
+
+	*status = 0;
+
+	if (!dev->warm) {
+		ret = -EAGAIN;
+		goto err;
+	}
+
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+		ret = regmap_read(dev->regmap[0], 0x62, &utmp);
+		if (ret)
+			goto err;
+		if (!(utmp & 0xA0)) {
+			if ((utmp & 0xF) >= 0x03)
+				*status |= FE_HAS_SIGNAL;
+			if ((utmp & 0xF) >= 0x09)
+				lock = 1;
+		}
+		break;
+	case SYS_DVBT2:
+		ret = regmap_read(dev->regmap[2], 0x8B, &utmp);
+		if (ret)
+			goto err;
+		if (!(utmp & 0x40)) {
+			if ((utmp & 0xF) >= 0x07)
+				*status |= FE_HAS_SIGNAL;
+			if ((utmp & 0xF) >= 0x0a)
+				*status |= FE_HAS_CARRIER;
+			if ((utmp & 0xF) >= 0x0d)
+				*status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+		}
+		break;
+	case SYS_DVBC_ANNEX_A:
+		ret = regmap_read(dev->regmap[1], 0x85, &utmp);
+		if (ret)
+			goto err;
+		if (!(utmp & 0x40)) {
+			ret = regmap_read(dev->regmap[1], 0x89, &utmp);
+			if (ret)
+				goto err;
+			if (utmp & 0x01)
+				lock = 1;
+		}
+		break;
+	default:
+		ret = -EINVAL;
+		goto err;
+	}
+
+	if (lock)
+		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
+				FE_HAS_SYNC | FE_HAS_LOCK;
+
+	return 0;
+err:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static int mn88473_init(struct dvb_frontend *fe)
+{
+	struct i2c_client *client = fe->demodulator_priv;
+	struct mn88473_dev *dev = i2c_get_clientdata(client);
+	int ret, len, remaining;
+	const struct firmware *fw = NULL;
+	u8 *fw_file = MN88473_FIRMWARE;
+	unsigned int tmp;
+
+	dev_dbg(&client->dev, "\n");
+
+	/* set cold state by default */
+	dev->warm = false;
+
+	/* check if firmware is already running */
+	ret = regmap_read(dev->regmap[0], 0xf5, &tmp);
+	if (ret)
+		goto err;
+
+	if (!(tmp & 0x1)) {
+		dev_info(&client->dev, "firmware already running\n");
+		dev->warm = true;
+		return 0;
+	}
+
+	/* request the firmware, this will block and timeout */
+	ret = request_firmware(&fw, fw_file, &client->dev);
+	if (ret) {
+		dev_err(&client->dev, "firmare file '%s' not found\n", fw_file);
+		goto err_request_firmware;
+	}
+
+	dev_info(&client->dev, "downloading firmware from file '%s'\n",
+		 fw_file);
+
+	ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
+	if (ret)
+		goto err;
+
+	for (remaining = fw->size; remaining > 0;
+			remaining -= (dev->i2c_wr_max - 1)) {
+		len = remaining;
+		if (len > (dev->i2c_wr_max - 1))
+			len = dev->i2c_wr_max - 1;
+
+		ret = regmap_bulk_write(dev->regmap[0], 0xf6,
+					&fw->data[fw->size - remaining], len);
+		if (ret) {
+			dev_err(&client->dev, "firmware download failed=%d\n",
+				ret);
+			goto err;
+		}
+	}
+
+	/* parity check of firmware */
+	ret = regmap_read(dev->regmap[0], 0xf8, &tmp);
+	if (ret) {
+		dev_err(&client->dev,
+				"parity reg read failed=%d\n", ret);
+		goto err;
+	}
+	if (tmp & 0x10) {
+		dev_err(&client->dev,
+				"firmware parity check failed=0x%x\n", tmp);
+		goto err;
+	}
+	dev_err(&client->dev, "firmware parity check succeeded=0x%x\n", tmp);
+
+	ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
+	if (ret)
+		goto err;
+
+	release_firmware(fw);
+	fw = NULL;
+
+	/* warm state */
+	dev->warm = true;
+
+	return 0;
+
+err:
+	release_firmware(fw);
+err_request_firmware:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static int mn88473_sleep(struct dvb_frontend *fe)
+{
+	struct i2c_client *client = fe->demodulator_priv;
+	struct mn88473_dev *dev = i2c_get_clientdata(client);
+	int ret;
+
+	dev_dbg(&client->dev, "\n");
+
+	ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
+	if (ret)
+		goto err;
+
+	dev->delivery_system = SYS_UNDEFINED;
+
+	return 0;
+err:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static struct dvb_frontend_ops mn88473_ops = {
+	.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_AC},
+	.info = {
+		.name = "Panasonic MN88473",
+		.symbol_rate_min = 1000000,
+		.symbol_rate_max = 7200000,
+		.caps =	FE_CAN_FEC_1_2                 |
+			FE_CAN_FEC_2_3                 |
+			FE_CAN_FEC_3_4                 |
+			FE_CAN_FEC_5_6                 |
+			FE_CAN_FEC_7_8                 |
+			FE_CAN_FEC_AUTO                |
+			FE_CAN_QPSK                    |
+			FE_CAN_QAM_16                  |
+			FE_CAN_QAM_32                  |
+			FE_CAN_QAM_64                  |
+			FE_CAN_QAM_128                 |
+			FE_CAN_QAM_256                 |
+			FE_CAN_QAM_AUTO                |
+			FE_CAN_TRANSMISSION_MODE_AUTO  |
+			FE_CAN_GUARD_INTERVAL_AUTO     |
+			FE_CAN_HIERARCHY_AUTO          |
+			FE_CAN_MUTE_TS                 |
+			FE_CAN_2G_MODULATION           |
+			FE_CAN_MULTISTREAM
+	},
+
+	.get_tune_settings = mn88473_get_tune_settings,
+
+	.init = mn88473_init,
+	.sleep = mn88473_sleep,
+
+	.set_frontend = mn88473_set_frontend,
+
+	.read_status = mn88473_read_status,
+};
+
+static int mn88473_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct mn88473_config *config = client->dev.platform_data;
+	struct mn88473_dev *dev;
+	int ret;
+	unsigned int utmp;
+	static const struct regmap_config regmap_config = {
+		.reg_bits = 8,
+		.val_bits = 8,
+	};
+
+	dev_dbg(&client->dev, "\n");
+
+	/* Caller really need to provide pointer for frontend we create. */
+	if (config->fe == NULL) {
+		dev_err(&client->dev, "frontend pointer not defined\n");
+		ret = -EINVAL;
+		goto err;
+	}
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	dev->i2c_wr_max = config->i2c_wr_max;
+	if (!config->xtal)
+		dev->xtal = 25000000;
+	else
+		dev->xtal = config->xtal;
+	dev->client[0] = client;
+	dev->regmap[0] = regmap_init_i2c(dev->client[0], &regmap_config);
+	if (IS_ERR(dev->regmap[0])) {
+		ret = PTR_ERR(dev->regmap[0]);
+		goto err_kfree;
+	}
+
+	/* check demod answers to I2C */
+	ret = regmap_read(dev->regmap[0], 0x00, &utmp);
+	if (ret)
+		goto err_regmap_0_regmap_exit;
+
+	/*
+	 * Chip has three I2C addresses for different register pages. Used
+	 * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
+	 * 0x1a and 0x1c, in order to get own I2C client for each register page.
+	 */
+	dev->client[1] = i2c_new_dummy(client->adapter, 0x1a);
+	if (dev->client[1] == NULL) {
+		ret = -ENODEV;
+		dev_err(&client->dev, "I2C registration failed\n");
+		if (ret)
+			goto err_regmap_0_regmap_exit;
+	}
+	dev->regmap[1] = regmap_init_i2c(dev->client[1], &regmap_config);
+	if (IS_ERR(dev->regmap[1])) {
+		ret = PTR_ERR(dev->regmap[1]);
+		goto err_client_1_i2c_unregister_device;
+	}
+	i2c_set_clientdata(dev->client[1], dev);
+
+	dev->client[2] = i2c_new_dummy(client->adapter, 0x1c);
+	if (dev->client[2] == NULL) {
+		ret = -ENODEV;
+		dev_err(&client->dev, "2nd I2C registration failed\n");
+		if (ret)
+			goto err_regmap_1_regmap_exit;
+	}
+	dev->regmap[2] = regmap_init_i2c(dev->client[2], &regmap_config);
+	if (IS_ERR(dev->regmap[2])) {
+		ret = PTR_ERR(dev->regmap[2]);
+		goto err_client_2_i2c_unregister_device;
+	}
+	i2c_set_clientdata(dev->client[2], dev);
+
+	/* create dvb_frontend */
+	memcpy(&dev->fe.ops, &mn88473_ops, sizeof(struct dvb_frontend_ops));
+	dev->fe.demodulator_priv = client;
+	*config->fe = &dev->fe;
+	i2c_set_clientdata(client, dev);
+
+	dev_info(&dev->client[0]->dev, "Panasonic MN88473 successfully attached\n");
+	return 0;
+
+err_client_2_i2c_unregister_device:
+	i2c_unregister_device(dev->client[2]);
+err_regmap_1_regmap_exit:
+	regmap_exit(dev->regmap[1]);
+err_client_1_i2c_unregister_device:
+	i2c_unregister_device(dev->client[1]);
+err_regmap_0_regmap_exit:
+	regmap_exit(dev->regmap[0]);
+err_kfree:
+	kfree(dev);
+err:
+	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static int mn88473_remove(struct i2c_client *client)
+{
+	struct mn88473_dev *dev = i2c_get_clientdata(client);
+
+	dev_dbg(&client->dev, "\n");
+
+	regmap_exit(dev->regmap[2]);
+	i2c_unregister_device(dev->client[2]);
+
+	regmap_exit(dev->regmap[1]);
+	i2c_unregister_device(dev->client[1]);
+
+	regmap_exit(dev->regmap[0]);
+
+	kfree(dev);
+
+	return 0;
+}
+
+static const struct i2c_device_id mn88473_id_table[] = {
+	{"mn88473", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, mn88473_id_table);
+
+static struct i2c_driver mn88473_driver = {
+	.driver = {
+		.name	= "mn88473",
+	},
+	.probe		= mn88473_probe,
+	.remove		= mn88473_remove,
+	.id_table	= mn88473_id_table,
+};
+
+module_i2c_driver(mn88473_driver);
+
+MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
+MODULE_DESCRIPTION("Panasonic MN88473 DVB-T/T2/C demodulator driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(MN88473_FIRMWARE);
diff --git a/drivers/media/dvb-frontends/mn88473_priv.h b/drivers/media/dvb-frontends/mn88473_priv.h
new file mode 100644
index 0000000..54beb42
--- /dev/null
+++ b/drivers/media/dvb-frontends/mn88473_priv.h
@@ -0,0 +1,37 @@
+/*
+ * Panasonic MN88473 DVB-T/T2/C demodulator driver
+ *
+ * Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    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.
+ */
+
+#ifndef MN88473_PRIV_H
+#define MN88473_PRIV_H
+
+#include "dvb_frontend.h"
+#include "mn88473.h"
+#include <linux/firmware.h>
+#include <linux/regmap.h>
+
+#define MN88473_FIRMWARE "dvb-demod-mn88473-01.fw"
+
+struct mn88473_dev {
+	struct i2c_client *client[3];
+	struct regmap *regmap[3];
+	struct dvb_frontend fe;
+	u16 i2c_wr_max;
+	enum fe_delivery_system delivery_system;
+	bool warm; /* FW running */
+	u32 xtal;
+};
+
+#endif
diff --git a/drivers/staging/media/Kconfig b/drivers/staging/media/Kconfig
index 1469768..916f968 100644
--- a/drivers/staging/media/Kconfig
+++ b/drivers/staging/media/Kconfig
@@ -27,8 +27,6 @@ source "drivers/staging/media/davinci_vpfe/Kconfig"
 
 source "drivers/staging/media/mn88472/Kconfig"
 
-source "drivers/staging/media/mn88473/Kconfig"
-
 source "drivers/staging/media/omap4iss/Kconfig"
 
 # Keep LIRC at the end, as it has sub-menus
diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile
index 34c557b..5727773 100644
--- a/drivers/staging/media/Makefile
+++ b/drivers/staging/media/Makefile
@@ -4,4 +4,3 @@ obj-$(CONFIG_LIRC_STAGING)	+= lirc/
 obj-$(CONFIG_VIDEO_DM365_VPFE)	+= davinci_vpfe/
 obj-$(CONFIG_VIDEO_OMAP4)	+= omap4iss/
 obj-$(CONFIG_DVB_MN88472)       += mn88472/
-obj-$(CONFIG_DVB_MN88473)       += mn88473/
diff --git a/drivers/staging/media/mn88473/Kconfig b/drivers/staging/media/mn88473/Kconfig
deleted file mode 100644
index 6c9ebf5..0000000
--- a/drivers/staging/media/mn88473/Kconfig
+++ /dev/null
@@ -1,7 +0,0 @@
-config DVB_MN88473
-	tristate "Panasonic MN88473"
-	depends on DVB_CORE && I2C
-	select REGMAP_I2C
-	default m if !MEDIA_SUBDRV_AUTOSELECT
-	help
-	  Say Y when you want to support this frontend.
diff --git a/drivers/staging/media/mn88473/Makefile b/drivers/staging/media/mn88473/Makefile
deleted file mode 100644
index fac5541..0000000
--- a/drivers/staging/media/mn88473/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-obj-$(CONFIG_DVB_MN88473) += mn88473.o
-
-ccflags-y += -Idrivers/media/dvb-core/
-ccflags-y += -Idrivers/media/dvb-frontends/
-ccflags-y += -Idrivers/media/tuners/
diff --git a/drivers/staging/media/mn88473/TODO b/drivers/staging/media/mn88473/TODO
deleted file mode 100644
index b90a14b..0000000
--- a/drivers/staging/media/mn88473/TODO
+++ /dev/null
@@ -1,21 +0,0 @@
-Driver general quality is not good enough for mainline. Also, other
-device drivers (USB-bridge, tuner) needed for Astrometa receiver in
-question could need some changes. However, if that driver is mainlined
-due to some other device than Astrometa, unrelated TODOs could be
-skipped. In that case rtl28xxu driver needs module parameter to prevent
-driver loading.
-
-Required TODOs:
-* missing lock flags
-* I2C errors
-* tuner sensitivity
-
-*Do not* send any patch fixing checkpatch.pl issues. Currently it passes
-checkpatch.pl tests. I don't want waste my time to review this kind of
-trivial stuff. *Do not* add missing register I/O error checks. Those are
-missing for the reason it is much easier to compare I2C data sniffs when
-there is less lines. Those error checks are about the last thing to be added.
-
-Patches should be submitted to:
-linux-media@vger.kernel.org and Antti Palosaari <crope@iki.fi>
-
diff --git a/drivers/staging/media/mn88473/mn88473.c b/drivers/staging/media/mn88473/mn88473.c
deleted file mode 100644
index a222e99..0000000
--- a/drivers/staging/media/mn88473/mn88473.c
+++ /dev/null
@@ -1,522 +0,0 @@
-/*
- * Panasonic MN88473 DVB-T/T2/C demodulator driver
- *
- * Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    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.
- */
-
-#include "mn88473_priv.h"
-
-static int mn88473_get_tune_settings(struct dvb_frontend *fe,
-				     struct dvb_frontend_tune_settings *s)
-{
-	s->min_delay_ms = 1000;
-	return 0;
-}
-
-static int mn88473_set_frontend(struct dvb_frontend *fe)
-{
-	struct i2c_client *client = fe->demodulator_priv;
-	struct mn88473_dev *dev = i2c_get_clientdata(client);
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	int ret, i;
-	u32 if_frequency;
-	u64 tmp;
-	u8 delivery_system_val, if_val[3], bw_val[7];
-
-	dev_dbg(&client->dev,
-		"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
-		c->delivery_system,
-		c->modulation,
-		c->frequency,
-		c->bandwidth_hz,
-		c->symbol_rate,
-		c->inversion,
-		c->stream_id);
-
-	if (!dev->warm) {
-		ret = -EAGAIN;
-		goto err;
-	}
-
-	switch (c->delivery_system) {
-	case SYS_DVBT:
-		delivery_system_val = 0x02;
-		break;
-	case SYS_DVBT2:
-		delivery_system_val = 0x03;
-		break;
-	case SYS_DVBC_ANNEX_A:
-		delivery_system_val = 0x04;
-		break;
-	default:
-		ret = -EINVAL;
-		goto err;
-	}
-
-	if (c->bandwidth_hz <= 6000000) {
-		memcpy(bw_val, "\xe9\x55\x55\x1c\x29\x1c\x29", 7);
-	} else if (c->bandwidth_hz <= 7000000) {
-		memcpy(bw_val, "\xc8\x00\x00\x17\x0a\x17\x0a", 7);
-	} else if (c->bandwidth_hz <= 8000000) {
-		memcpy(bw_val, "\xaf\x00\x00\x11\xec\x11\xec", 7);
-	} else {
-		ret = -EINVAL;
-		goto err;
-	}
-
-	/* program tuner */
-	if (fe->ops.tuner_ops.set_params) {
-		ret = fe->ops.tuner_ops.set_params(fe);
-		if (ret)
-			goto err;
-	}
-
-	if (fe->ops.tuner_ops.get_if_frequency) {
-		ret = fe->ops.tuner_ops.get_if_frequency(fe, &if_frequency);
-		if (ret)
-			goto err;
-
-		dev_dbg(&client->dev, "get_if_frequency=%d\n", if_frequency);
-	} else {
-		if_frequency = 0;
-	}
-
-	/* Calculate IF registers ( (1<<24)*IF / Xtal ) */
-	tmp =  div_u64(if_frequency * (u64)(1<<24) + (dev->xtal / 2),
-				   dev->xtal);
-	if_val[0] = ((tmp >> 16) & 0xff);
-	if_val[1] = ((tmp >>  8) & 0xff);
-	if_val[2] = ((tmp >>  0) & 0xff);
-
-	ret = regmap_write(dev->regmap[2], 0x05, 0x00);
-	ret = regmap_write(dev->regmap[2], 0xfb, 0x13);
-	ret = regmap_write(dev->regmap[2], 0xef, 0x13);
-	ret = regmap_write(dev->regmap[2], 0xf9, 0x13);
-	ret = regmap_write(dev->regmap[2], 0x00, 0x18);
-	ret = regmap_write(dev->regmap[2], 0x01, 0x01);
-	ret = regmap_write(dev->regmap[2], 0x02, 0x21);
-	ret = regmap_write(dev->regmap[2], 0x03, delivery_system_val);
-	ret = regmap_write(dev->regmap[2], 0x0b, 0x00);
-
-	for (i = 0; i < sizeof(if_val); i++) {
-		ret = regmap_write(dev->regmap[2], 0x10 + i, if_val[i]);
-		if (ret)
-			goto err;
-	}
-
-	for (i = 0; i < sizeof(bw_val); i++) {
-		ret = regmap_write(dev->regmap[2], 0x13 + i, bw_val[i]);
-		if (ret)
-			goto err;
-	}
-
-	ret = regmap_write(dev->regmap[2], 0x2d, 0x3b);
-	ret = regmap_write(dev->regmap[2], 0x2e, 0x00);
-	ret = regmap_write(dev->regmap[2], 0x56, 0x0d);
-	ret = regmap_write(dev->regmap[0], 0x01, 0xba);
-	ret = regmap_write(dev->regmap[0], 0x02, 0x13);
-	ret = regmap_write(dev->regmap[0], 0x03, 0x80);
-	ret = regmap_write(dev->regmap[0], 0x04, 0xba);
-	ret = regmap_write(dev->regmap[0], 0x05, 0x91);
-	ret = regmap_write(dev->regmap[0], 0x07, 0xe7);
-	ret = regmap_write(dev->regmap[0], 0x08, 0x28);
-	ret = regmap_write(dev->regmap[0], 0x0a, 0x1a);
-	ret = regmap_write(dev->regmap[0], 0x13, 0x1f);
-	ret = regmap_write(dev->regmap[0], 0x19, 0x03);
-	ret = regmap_write(dev->regmap[0], 0x1d, 0xb0);
-	ret = regmap_write(dev->regmap[0], 0x2a, 0x72);
-	ret = regmap_write(dev->regmap[0], 0x2d, 0x00);
-	ret = regmap_write(dev->regmap[0], 0x3c, 0x00);
-	ret = regmap_write(dev->regmap[0], 0x3f, 0xf8);
-	ret = regmap_write(dev->regmap[0], 0x40, 0xf4);
-	ret = regmap_write(dev->regmap[0], 0x41, 0x08);
-	ret = regmap_write(dev->regmap[0], 0xd2, 0x29);
-	ret = regmap_write(dev->regmap[0], 0xd4, 0x55);
-	ret = regmap_write(dev->regmap[1], 0x10, 0x10);
-	ret = regmap_write(dev->regmap[1], 0x11, 0xab);
-	ret = regmap_write(dev->regmap[1], 0x12, 0x0d);
-	ret = regmap_write(dev->regmap[1], 0x13, 0xae);
-	ret = regmap_write(dev->regmap[1], 0x14, 0x1d);
-	ret = regmap_write(dev->regmap[1], 0x15, 0x9d);
-	ret = regmap_write(dev->regmap[1], 0xbe, 0x08);
-	ret = regmap_write(dev->regmap[2], 0x09, 0x08);
-	ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
-	ret = regmap_write(dev->regmap[0], 0xb2, 0x37);
-	ret = regmap_write(dev->regmap[0], 0xd7, 0x04);
-	ret = regmap_write(dev->regmap[2], 0x32, 0x80);
-	ret = regmap_write(dev->regmap[2], 0x36, 0x00);
-	ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
-	if (ret)
-		goto err;
-
-	dev->delivery_system = c->delivery_system;
-
-	return 0;
-err:
-	dev_dbg(&client->dev, "failed=%d\n", ret);
-	return ret;
-}
-
-static int mn88473_read_status(struct dvb_frontend *fe, enum fe_status *status)
-{
-	struct i2c_client *client = fe->demodulator_priv;
-	struct mn88473_dev *dev = i2c_get_clientdata(client);
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-	int ret;
-	unsigned int utmp;
-	int lock = 0;
-
-	*status = 0;
-
-	if (!dev->warm) {
-		ret = -EAGAIN;
-		goto err;
-	}
-
-	switch (c->delivery_system) {
-	case SYS_DVBT:
-		ret = regmap_read(dev->regmap[0], 0x62, &utmp);
-		if (ret)
-			goto err;
-		if (!(utmp & 0xA0)) {
-			if ((utmp & 0xF) >= 0x03)
-				*status |= FE_HAS_SIGNAL;
-			if ((utmp & 0xF) >= 0x09)
-				lock = 1;
-		}
-		break;
-	case SYS_DVBT2:
-		ret = regmap_read(dev->regmap[2], 0x8B, &utmp);
-		if (ret)
-			goto err;
-		if (!(utmp & 0x40)) {
-			if ((utmp & 0xF) >= 0x07)
-				*status |= FE_HAS_SIGNAL;
-			if ((utmp & 0xF) >= 0x0a)
-				*status |= FE_HAS_CARRIER;
-			if ((utmp & 0xF) >= 0x0d)
-				*status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
-		}
-		break;
-	case SYS_DVBC_ANNEX_A:
-		ret = regmap_read(dev->regmap[1], 0x85, &utmp);
-		if (ret)
-			goto err;
-		if (!(utmp & 0x40)) {
-			ret = regmap_read(dev->regmap[1], 0x89, &utmp);
-			if (ret)
-				goto err;
-			if (utmp & 0x01)
-				lock = 1;
-		}
-		break;
-	default:
-		ret = -EINVAL;
-		goto err;
-	}
-
-	if (lock)
-		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
-				FE_HAS_SYNC | FE_HAS_LOCK;
-
-	return 0;
-err:
-	dev_dbg(&client->dev, "failed=%d\n", ret);
-	return ret;
-}
-
-static int mn88473_init(struct dvb_frontend *fe)
-{
-	struct i2c_client *client = fe->demodulator_priv;
-	struct mn88473_dev *dev = i2c_get_clientdata(client);
-	int ret, len, remaining;
-	const struct firmware *fw = NULL;
-	u8 *fw_file = MN88473_FIRMWARE;
-	unsigned int tmp;
-
-	dev_dbg(&client->dev, "\n");
-
-	/* set cold state by default */
-	dev->warm = false;
-
-	/* check if firmware is already running */
-	ret = regmap_read(dev->regmap[0], 0xf5, &tmp);
-	if (ret)
-		goto err;
-
-	if (!(tmp & 0x1)) {
-		dev_info(&client->dev, "firmware already running\n");
-		dev->warm = true;
-		return 0;
-	}
-
-	/* request the firmware, this will block and timeout */
-	ret = request_firmware(&fw, fw_file, &client->dev);
-	if (ret) {
-		dev_err(&client->dev, "firmare file '%s' not found\n", fw_file);
-		goto err_request_firmware;
-	}
-
-	dev_info(&client->dev, "downloading firmware from file '%s'\n",
-		 fw_file);
-
-	ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
-	if (ret)
-		goto err;
-
-	for (remaining = fw->size; remaining > 0;
-			remaining -= (dev->i2c_wr_max - 1)) {
-		len = remaining;
-		if (len > (dev->i2c_wr_max - 1))
-			len = dev->i2c_wr_max - 1;
-
-		ret = regmap_bulk_write(dev->regmap[0], 0xf6,
-					&fw->data[fw->size - remaining], len);
-		if (ret) {
-			dev_err(&client->dev, "firmware download failed=%d\n",
-				ret);
-			goto err;
-		}
-	}
-
-	/* parity check of firmware */
-	ret = regmap_read(dev->regmap[0], 0xf8, &tmp);
-	if (ret) {
-		dev_err(&client->dev,
-				"parity reg read failed=%d\n", ret);
-		goto err;
-	}
-	if (tmp & 0x10) {
-		dev_err(&client->dev,
-				"firmware parity check failed=0x%x\n", tmp);
-		goto err;
-	}
-	dev_err(&client->dev, "firmware parity check succeeded=0x%x\n", tmp);
-
-	ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
-	if (ret)
-		goto err;
-
-	release_firmware(fw);
-	fw = NULL;
-
-	/* warm state */
-	dev->warm = true;
-
-	return 0;
-
-err:
-	release_firmware(fw);
-err_request_firmware:
-	dev_dbg(&client->dev, "failed=%d\n", ret);
-	return ret;
-}
-
-static int mn88473_sleep(struct dvb_frontend *fe)
-{
-	struct i2c_client *client = fe->demodulator_priv;
-	struct mn88473_dev *dev = i2c_get_clientdata(client);
-	int ret;
-
-	dev_dbg(&client->dev, "\n");
-
-	ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
-	if (ret)
-		goto err;
-
-	dev->delivery_system = SYS_UNDEFINED;
-
-	return 0;
-err:
-	dev_dbg(&client->dev, "failed=%d\n", ret);
-	return ret;
-}
-
-static struct dvb_frontend_ops mn88473_ops = {
-	.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_AC},
-	.info = {
-		.name = "Panasonic MN88473",
-		.symbol_rate_min = 1000000,
-		.symbol_rate_max = 7200000,
-		.caps =	FE_CAN_FEC_1_2                 |
-			FE_CAN_FEC_2_3                 |
-			FE_CAN_FEC_3_4                 |
-			FE_CAN_FEC_5_6                 |
-			FE_CAN_FEC_7_8                 |
-			FE_CAN_FEC_AUTO                |
-			FE_CAN_QPSK                    |
-			FE_CAN_QAM_16                  |
-			FE_CAN_QAM_32                  |
-			FE_CAN_QAM_64                  |
-			FE_CAN_QAM_128                 |
-			FE_CAN_QAM_256                 |
-			FE_CAN_QAM_AUTO                |
-			FE_CAN_TRANSMISSION_MODE_AUTO  |
-			FE_CAN_GUARD_INTERVAL_AUTO     |
-			FE_CAN_HIERARCHY_AUTO          |
-			FE_CAN_MUTE_TS                 |
-			FE_CAN_2G_MODULATION           |
-			FE_CAN_MULTISTREAM
-	},
-
-	.get_tune_settings = mn88473_get_tune_settings,
-
-	.init = mn88473_init,
-	.sleep = mn88473_sleep,
-
-	.set_frontend = mn88473_set_frontend,
-
-	.read_status = mn88473_read_status,
-};
-
-static int mn88473_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	struct mn88473_config *config = client->dev.platform_data;
-	struct mn88473_dev *dev;
-	int ret;
-	unsigned int utmp;
-	static const struct regmap_config regmap_config = {
-		.reg_bits = 8,
-		.val_bits = 8,
-	};
-
-	dev_dbg(&client->dev, "\n");
-
-	/* Caller really need to provide pointer for frontend we create. */
-	if (config->fe == NULL) {
-		dev_err(&client->dev, "frontend pointer not defined\n");
-		ret = -EINVAL;
-		goto err;
-	}
-
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (dev == NULL) {
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	dev->i2c_wr_max = config->i2c_wr_max;
-	if (!config->xtal)
-		dev->xtal = 25000000;
-	else
-		dev->xtal = config->xtal;
-	dev->client[0] = client;
-	dev->regmap[0] = regmap_init_i2c(dev->client[0], &regmap_config);
-	if (IS_ERR(dev->regmap[0])) {
-		ret = PTR_ERR(dev->regmap[0]);
-		goto err_kfree;
-	}
-
-	/* check demod answers to I2C */
-	ret = regmap_read(dev->regmap[0], 0x00, &utmp);
-	if (ret)
-		goto err_regmap_0_regmap_exit;
-
-	/*
-	 * Chip has three I2C addresses for different register pages. Used
-	 * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
-	 * 0x1a and 0x1c, in order to get own I2C client for each register page.
-	 */
-	dev->client[1] = i2c_new_dummy(client->adapter, 0x1a);
-	if (dev->client[1] == NULL) {
-		ret = -ENODEV;
-		dev_err(&client->dev, "I2C registration failed\n");
-		if (ret)
-			goto err_regmap_0_regmap_exit;
-	}
-	dev->regmap[1] = regmap_init_i2c(dev->client[1], &regmap_config);
-	if (IS_ERR(dev->regmap[1])) {
-		ret = PTR_ERR(dev->regmap[1]);
-		goto err_client_1_i2c_unregister_device;
-	}
-	i2c_set_clientdata(dev->client[1], dev);
-
-	dev->client[2] = i2c_new_dummy(client->adapter, 0x1c);
-	if (dev->client[2] == NULL) {
-		ret = -ENODEV;
-		dev_err(&client->dev, "2nd I2C registration failed\n");
-		if (ret)
-			goto err_regmap_1_regmap_exit;
-	}
-	dev->regmap[2] = regmap_init_i2c(dev->client[2], &regmap_config);
-	if (IS_ERR(dev->regmap[2])) {
-		ret = PTR_ERR(dev->regmap[2]);
-		goto err_client_2_i2c_unregister_device;
-	}
-	i2c_set_clientdata(dev->client[2], dev);
-
-	/* create dvb_frontend */
-	memcpy(&dev->fe.ops, &mn88473_ops, sizeof(struct dvb_frontend_ops));
-	dev->fe.demodulator_priv = client;
-	*config->fe = &dev->fe;
-	i2c_set_clientdata(client, dev);
-
-	dev_info(&dev->client[0]->dev, "Panasonic MN88473 successfully attached\n");
-	return 0;
-
-err_client_2_i2c_unregister_device:
-	i2c_unregister_device(dev->client[2]);
-err_regmap_1_regmap_exit:
-	regmap_exit(dev->regmap[1]);
-err_client_1_i2c_unregister_device:
-	i2c_unregister_device(dev->client[1]);
-err_regmap_0_regmap_exit:
-	regmap_exit(dev->regmap[0]);
-err_kfree:
-	kfree(dev);
-err:
-	dev_dbg(&client->dev, "failed=%d\n", ret);
-	return ret;
-}
-
-static int mn88473_remove(struct i2c_client *client)
-{
-	struct mn88473_dev *dev = i2c_get_clientdata(client);
-
-	dev_dbg(&client->dev, "\n");
-
-	regmap_exit(dev->regmap[2]);
-	i2c_unregister_device(dev->client[2]);
-
-	regmap_exit(dev->regmap[1]);
-	i2c_unregister_device(dev->client[1]);
-
-	regmap_exit(dev->regmap[0]);
-
-	kfree(dev);
-
-	return 0;
-}
-
-static const struct i2c_device_id mn88473_id_table[] = {
-	{"mn88473", 0},
-	{}
-};
-MODULE_DEVICE_TABLE(i2c, mn88473_id_table);
-
-static struct i2c_driver mn88473_driver = {
-	.driver = {
-		.name	= "mn88473",
-	},
-	.probe		= mn88473_probe,
-	.remove		= mn88473_remove,
-	.id_table	= mn88473_id_table,
-};
-
-module_i2c_driver(mn88473_driver);
-
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_DESCRIPTION("Panasonic MN88473 DVB-T/T2/C demodulator driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(MN88473_FIRMWARE);
diff --git a/drivers/staging/media/mn88473/mn88473_priv.h b/drivers/staging/media/mn88473/mn88473_priv.h
deleted file mode 100644
index 54beb42..0000000
--- a/drivers/staging/media/mn88473/mn88473_priv.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Panasonic MN88473 DVB-T/T2/C demodulator driver
- *
- * Copyright (C) 2014 Antti Palosaari <crope@iki.fi>
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    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.
- */
-
-#ifndef MN88473_PRIV_H
-#define MN88473_PRIV_H
-
-#include "dvb_frontend.h"
-#include "mn88473.h"
-#include <linux/firmware.h>
-#include <linux/regmap.h>
-
-#define MN88473_FIRMWARE "dvb-demod-mn88473-01.fw"
-
-struct mn88473_dev {
-	struct i2c_client *client[3];
-	struct regmap *regmap[3];
-	struct dvb_frontend fe;
-	u16 i2c_wr_max;
-	enum fe_delivery_system delivery_system;
-	bool warm; /* FW running */
-	u32 xtal;
-};
-
-#endif
-- 
http://palosaari.fi/

[PATCH 2/4] mn88473: finalize driver

[Antti Palosaari]

Finalize the driver.
It still lacks a lot of features, like all statistics and PLP
filtering, but basic functionality and sensitivity is pretty good
shape.

Signed-off-by: Antti Palosaari <crope@iki.fi>
---
 drivers/media/dvb-frontends/mn88473.c      | 388 ++++++++++++++++++-----------
 drivers/media/dvb-frontends/mn88473.h      |  14 +-
 drivers/media/dvb-frontends/mn88473_priv.h |   7 +-
 3 files changed, 246 insertions(+), 163 deletions(-)

diff --git a/drivers/media/dvb-frontends/mn88473.c b/drivers/media/dvb-frontends/mn88473.c
index a222e99..6c5d5921 100644
--- a/drivers/media/dvb-frontends/mn88473.c
+++ b/drivers/media/dvb-frontends/mn88473.c
@@ -29,21 +29,17 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
 	struct mn88473_dev *dev = i2c_get_clientdata(client);
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 	int ret, i;
+	unsigned int uitmp;
 	u32 if_frequency;
-	u64 tmp;
-	u8 delivery_system_val, if_val[3], bw_val[7];
+	u8 delivery_system_val, if_val[3], *conf_val_ptr;
+	u8 reg_bank2_2d_val, reg_bank0_d2_val;
 
 	dev_dbg(&client->dev,
 		"delivery_system=%u modulation=%u frequency=%u bandwidth_hz=%u symbol_rate=%u inversion=%d stream_id=%d\n",
-		c->delivery_system,
-		c->modulation,
-		c->frequency,
-		c->bandwidth_hz,
-		c->symbol_rate,
-		c->inversion,
-		c->stream_id);
-
-	if (!dev->warm) {
+		c->delivery_system, c->modulation, c->frequency,
+		c->bandwidth_hz, c->symbol_rate, c->inversion, c->stream_id);
+
+	if (!dev->active) {
 		ret = -EAGAIN;
 		goto err;
 	}
@@ -51,30 +47,50 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
 	switch (c->delivery_system) {
 	case SYS_DVBT:
 		delivery_system_val = 0x02;
+		reg_bank2_2d_val = 0x23;
+		reg_bank0_d2_val = 0x2a;
 		break;
 	case SYS_DVBT2:
 		delivery_system_val = 0x03;
+		reg_bank2_2d_val = 0x3b;
+		reg_bank0_d2_val = 0x29;
 		break;
 	case SYS_DVBC_ANNEX_A:
 		delivery_system_val = 0x04;
+		reg_bank2_2d_val = 0x3b;
+		reg_bank0_d2_val = 0x29;
 		break;
 	default:
 		ret = -EINVAL;
 		goto err;
 	}
 
-	if (c->bandwidth_hz <= 6000000) {
-		memcpy(bw_val, "\xe9\x55\x55\x1c\x29\x1c\x29", 7);
-	} else if (c->bandwidth_hz <= 7000000) {
-		memcpy(bw_val, "\xc8\x00\x00\x17\x0a\x17\x0a", 7);
-	} else if (c->bandwidth_hz <= 8000000) {
-		memcpy(bw_val, "\xaf\x00\x00\x11\xec\x11\xec", 7);
-	} else {
-		ret = -EINVAL;
-		goto err;
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+	case SYS_DVBT2:
+		switch (c->bandwidth_hz) {
+		case 6000000:
+			conf_val_ptr = "\xe9\x55\x55\x1c\x29\x1c\x29";
+			break;
+		case 7000000:
+			conf_val_ptr = "\xc8\x00\x00\x17\x0a\x17\x0a";
+			break;
+		case 8000000:
+			conf_val_ptr = "\xaf\x00\x00\x11\xec\x11\xec";
+			break;
+		default:
+			ret = -EINVAL;
+			goto err;
+		}
+		break;
+	case SYS_DVBC_ANNEX_A:
+		conf_val_ptr = "\x10\xab\x0d\xae\x1d\x9d";
+		break;
+	default:
+		break;
 	}
 
-	/* program tuner */
+	/* Program tuner */
 	if (fe->ops.tuner_ops.set_params) {
 		ret = fe->ops.tuner_ops.set_params(fe);
 		if (ret)
@@ -86,27 +102,45 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
 		if (ret)
 			goto err;
 
-		dev_dbg(&client->dev, "get_if_frequency=%d\n", if_frequency);
+		dev_dbg(&client->dev, "get_if_frequency=%u\n", if_frequency);
 	} else {
-		if_frequency = 0;
+		ret = -EINVAL;
+		goto err;
 	}
 
-	/* Calculate IF registers ( (1<<24)*IF / Xtal ) */
-	tmp =  div_u64(if_frequency * (u64)(1<<24) + (dev->xtal / 2),
-				   dev->xtal);
-	if_val[0] = ((tmp >> 16) & 0xff);
-	if_val[1] = ((tmp >>  8) & 0xff);
-	if_val[2] = ((tmp >>  0) & 0xff);
+	/* Calculate IF registers */
+	uitmp = DIV_ROUND_CLOSEST_ULL((u64) if_frequency * 0x1000000, dev->clk);
+	if_val[0] = (uitmp >> 16) & 0xff;
+	if_val[1] = (uitmp >>  8) & 0xff;
+	if_val[2] = (uitmp >>  0) & 0xff;
 
 	ret = regmap_write(dev->regmap[2], 0x05, 0x00);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0xfb, 0x13);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0xef, 0x13);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0xf9, 0x13);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x00, 0x18);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x01, 0x01);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x02, 0x21);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x03, delivery_system_val);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x0b, 0x00);
+	if (ret)
+		goto err;
 
 	for (i = 0; i < sizeof(if_val); i++) {
 		ret = regmap_write(dev->regmap[2], 0x10 + i, if_val[i]);
@@ -114,52 +148,85 @@ static int mn88473_set_frontend(struct dvb_frontend *fe)
 			goto err;
 	}
 
-	for (i = 0; i < sizeof(bw_val); i++) {
-		ret = regmap_write(dev->regmap[2], 0x13 + i, bw_val[i]);
+	switch (c->delivery_system) {
+	case SYS_DVBT:
+	case SYS_DVBT2:
+		for (i = 0; i < 7; i++) {
+			ret = regmap_write(dev->regmap[2], 0x13 + i,
+					   conf_val_ptr[i]);
+			if (ret)
+				goto err;
+		}
+		break;
+	case SYS_DVBC_ANNEX_A:
+		ret = regmap_bulk_write(dev->regmap[1], 0x10, conf_val_ptr, 6);
 		if (ret)
 			goto err;
+		break;
+	default:
+		break;
 	}
 
-	ret = regmap_write(dev->regmap[2], 0x2d, 0x3b);
+	ret = regmap_write(dev->regmap[2], 0x2d, reg_bank2_2d_val);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x2e, 0x00);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[2], 0x56, 0x0d);
-	ret = regmap_write(dev->regmap[0], 0x01, 0xba);
-	ret = regmap_write(dev->regmap[0], 0x02, 0x13);
-	ret = regmap_write(dev->regmap[0], 0x03, 0x80);
-	ret = regmap_write(dev->regmap[0], 0x04, 0xba);
-	ret = regmap_write(dev->regmap[0], 0x05, 0x91);
-	ret = regmap_write(dev->regmap[0], 0x07, 0xe7);
-	ret = regmap_write(dev->regmap[0], 0x08, 0x28);
+	if (ret)
+		goto err;
+	ret = regmap_bulk_write(dev->regmap[0], 0x01,
+				"\xba\x13\x80\xba\x91\xdd\xe7\x28", 8);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x0a, 0x1a);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x13, 0x1f);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x19, 0x03);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x1d, 0xb0);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x2a, 0x72);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x2d, 0x00);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x3c, 0x00);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0x3f, 0xf8);
-	ret = regmap_write(dev->regmap[0], 0x40, 0xf4);
-	ret = regmap_write(dev->regmap[0], 0x41, 0x08);
-	ret = regmap_write(dev->regmap[0], 0xd2, 0x29);
+	if (ret)
+		goto err;
+	ret = regmap_bulk_write(dev->regmap[0], 0x40, "\xf4\x08", 2);
+	if (ret)
+		goto err;
+	ret = regmap_write(dev->regmap[0], 0xd2, reg_bank0_d2_val);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0xd4, 0x55);
-	ret = regmap_write(dev->regmap[1], 0x10, 0x10);
-	ret = regmap_write(dev->regmap[1], 0x11, 0xab);
-	ret = regmap_write(dev->regmap[1], 0x12, 0x0d);
-	ret = regmap_write(dev->regmap[1], 0x13, 0xae);
-	ret = regmap_write(dev->regmap[1], 0x14, 0x1d);
-	ret = regmap_write(dev->regmap[1], 0x15, 0x9d);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[1], 0xbe, 0x08);
-	ret = regmap_write(dev->regmap[2], 0x09, 0x08);
-	ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0xb2, 0x37);
+	if (ret)
+		goto err;
 	ret = regmap_write(dev->regmap[0], 0xd7, 0x04);
-	ret = regmap_write(dev->regmap[2], 0x32, 0x80);
-	ret = regmap_write(dev->regmap[2], 0x36, 0x00);
-	ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
 	if (ret)
 		goto err;
 
-	dev->delivery_system = c->delivery_system;
+	/* Reset FSM */
+	ret = regmap_write(dev->regmap[2], 0xf8, 0x9f);
+	if (ret)
+		goto err;
 
 	return 0;
 err:
@@ -173,51 +240,61 @@ static int mn88473_read_status(struct dvb_frontend *fe, enum fe_status *status)
 	struct mn88473_dev *dev = i2c_get_clientdata(client);
 	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 	int ret;
-	unsigned int utmp;
-	int lock = 0;
-
-	*status = 0;
+	unsigned int uitmp;
 
-	if (!dev->warm) {
+	if (!dev->active) {
 		ret = -EAGAIN;
 		goto err;
 	}
 
+	*status = 0;
+
 	switch (c->delivery_system) {
 	case SYS_DVBT:
-		ret = regmap_read(dev->regmap[0], 0x62, &utmp);
+		ret = regmap_read(dev->regmap[0], 0x62, &uitmp);
 		if (ret)
 			goto err;
-		if (!(utmp & 0xA0)) {
-			if ((utmp & 0xF) >= 0x03)
-				*status |= FE_HAS_SIGNAL;
-			if ((utmp & 0xF) >= 0x09)
-				lock = 1;
+
+		if (!(uitmp & 0xa0)) {
+			if ((uitmp & 0x0f) >= 0x09)
+				*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+					  FE_HAS_VITERBI | FE_HAS_SYNC |
+					  FE_HAS_LOCK;
+			else if ((uitmp & 0x0f) >= 0x03)
+				*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
 		}
 		break;
 	case SYS_DVBT2:
-		ret = regmap_read(dev->regmap[2], 0x8B, &utmp);
+		ret = regmap_read(dev->regmap[2], 0x8b, &uitmp);
 		if (ret)
 			goto err;
-		if (!(utmp & 0x40)) {
-			if ((utmp & 0xF) >= 0x07)
-				*status |= FE_HAS_SIGNAL;
-			if ((utmp & 0xF) >= 0x0a)
-				*status |= FE_HAS_CARRIER;
-			if ((utmp & 0xF) >= 0x0d)
-				*status |= FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
+
+		if (!(uitmp & 0x40)) {
+			if ((uitmp & 0x0f) >= 0x0d)
+				*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+					  FE_HAS_VITERBI | FE_HAS_SYNC |
+					  FE_HAS_LOCK;
+			else if ((uitmp & 0x0f) >= 0x0a)
+				*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+					  FE_HAS_VITERBI;
+			else if ((uitmp & 0x0f) >= 0x07)
+				*status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
 		}
 		break;
 	case SYS_DVBC_ANNEX_A:
-		ret = regmap_read(dev->regmap[1], 0x85, &utmp);
+		ret = regmap_read(dev->regmap[1], 0x85, &uitmp);
 		if (ret)
 			goto err;
-		if (!(utmp & 0x40)) {
-			ret = regmap_read(dev->regmap[1], 0x89, &utmp);
+
+		if (!(uitmp & 0x40)) {
+			ret = regmap_read(dev->regmap[1], 0x89, &uitmp);
 			if (ret)
 				goto err;
-			if (utmp & 0x01)
-				lock = 1;
+
+			if (uitmp & 0x01)
+				*status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
+					  FE_HAS_VITERBI | FE_HAS_SYNC |
+					  FE_HAS_LOCK;
 		}
 		break;
 	default:
@@ -225,10 +302,6 @@ static int mn88473_read_status(struct dvb_frontend *fe, enum fe_status *status)
 		goto err;
 	}
 
-	if (lock)
-		*status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
-				FE_HAS_SYNC | FE_HAS_LOCK;
-
 	return 0;
 err:
 	dev_dbg(&client->dev, "failed=%d\n", ret);
@@ -239,85 +312,76 @@ static int mn88473_init(struct dvb_frontend *fe)
 {
 	struct i2c_client *client = fe->demodulator_priv;
 	struct mn88473_dev *dev = i2c_get_clientdata(client);
-	int ret, len, remaining;
-	const struct firmware *fw = NULL;
-	u8 *fw_file = MN88473_FIRMWARE;
-	unsigned int tmp;
+	int ret, len, remain;
+	unsigned int uitmp;
+	const struct firmware *fw;
+	const char *name = MN88473_FIRMWARE;
 
 	dev_dbg(&client->dev, "\n");
 
-	/* set cold state by default */
-	dev->warm = false;
-
-	/* check if firmware is already running */
-	ret = regmap_read(dev->regmap[0], 0xf5, &tmp);
+	/* Check if firmware is already running */
+	ret = regmap_read(dev->regmap[0], 0xf5, &uitmp);
 	if (ret)
 		goto err;
 
-	if (!(tmp & 0x1)) {
-		dev_info(&client->dev, "firmware already running\n");
-		dev->warm = true;
-		return 0;
-	}
+	if (!(uitmp & 0x01))
+		goto warm;
 
-	/* request the firmware, this will block and timeout */
-	ret = request_firmware(&fw, fw_file, &client->dev);
+	/* Request the firmware, this will block and timeout */
+	ret = request_firmware(&fw, name, &client->dev);
 	if (ret) {
-		dev_err(&client->dev, "firmare file '%s' not found\n", fw_file);
-		goto err_request_firmware;
+		dev_err(&client->dev, "firmare file '%s' not found\n", name);
+		goto err;
 	}
 
-	dev_info(&client->dev, "downloading firmware from file '%s'\n",
-		 fw_file);
+	dev_info(&client->dev, "downloading firmware from file '%s'\n", name);
 
 	ret = regmap_write(dev->regmap[0], 0xf5, 0x03);
 	if (ret)
-		goto err;
-
-	for (remaining = fw->size; remaining > 0;
-			remaining -= (dev->i2c_wr_max - 1)) {
-		len = remaining;
-		if (len > (dev->i2c_wr_max - 1))
-			len = dev->i2c_wr_max - 1;
+		goto err_release_firmware;
 
+	for (remain = fw->size; remain > 0; remain -= (dev->i2c_wr_max - 1)) {
+		len = min(dev->i2c_wr_max - 1, remain);
 		ret = regmap_bulk_write(dev->regmap[0], 0xf6,
-					&fw->data[fw->size - remaining], len);
+					&fw->data[fw->size - remain], len);
 		if (ret) {
-			dev_err(&client->dev, "firmware download failed=%d\n",
+			dev_err(&client->dev, "firmware download failed %d\n",
 				ret);
-			goto err;
+			goto err_release_firmware;
 		}
 	}
 
-	/* parity check of firmware */
-	ret = regmap_read(dev->regmap[0], 0xf8, &tmp);
-	if (ret) {
-		dev_err(&client->dev,
-				"parity reg read failed=%d\n", ret);
+	release_firmware(fw);
+
+	/* Parity check of firmware */
+	ret = regmap_read(dev->regmap[0], 0xf8, &uitmp);
+	if (ret)
 		goto err;
-	}
-	if (tmp & 0x10) {
-		dev_err(&client->dev,
-				"firmware parity check failed=0x%x\n", tmp);
+
+	if (uitmp & 0x10) {
+		dev_err(&client->dev, "firmware parity check failed\n");
+		ret = -EINVAL;
 		goto err;
 	}
-	dev_err(&client->dev, "firmware parity check succeeded=0x%x\n", tmp);
 
 	ret = regmap_write(dev->regmap[0], 0xf5, 0x00);
 	if (ret)
 		goto err;
+warm:
+	/* TS config */
+	ret = regmap_write(dev->regmap[2], 0x09, 0x08);
+	if (ret)
+		goto err;
+	ret = regmap_write(dev->regmap[2], 0x08, 0x1d);
+	if (ret)
+		goto err;
 
-	release_firmware(fw);
-	fw = NULL;
-
-	/* warm state */
-	dev->warm = true;
+	dev->active = true;
 
 	return 0;
-
-err:
+err_release_firmware:
 	release_firmware(fw);
-err_request_firmware:
+err:
 	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
@@ -330,20 +394,20 @@ static int mn88473_sleep(struct dvb_frontend *fe)
 
 	dev_dbg(&client->dev, "\n");
 
+	dev->active = false;
+
 	ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
 	if (ret)
 		goto err;
 
-	dev->delivery_system = SYS_UNDEFINED;
-
 	return 0;
 err:
 	dev_dbg(&client->dev, "failed=%d\n", ret);
 	return ret;
 }
 
-static struct dvb_frontend_ops mn88473_ops = {
-	.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_AC},
+static const struct dvb_frontend_ops mn88473_ops = {
+	.delsys = {SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A},
 	.info = {
 		.name = "Panasonic MN88473",
 		.symbol_rate_min = 1000000,
@@ -365,8 +429,7 @@ static struct dvb_frontend_ops mn88473_ops = {
 			FE_CAN_GUARD_INTERVAL_AUTO     |
 			FE_CAN_HIERARCHY_AUTO          |
 			FE_CAN_MUTE_TS                 |
-			FE_CAN_2G_MODULATION           |
-			FE_CAN_MULTISTREAM
+			FE_CAN_2G_MODULATION
 	},
 
 	.get_tune_settings = mn88473_get_tune_settings,
@@ -385,7 +448,7 @@ static int mn88473_probe(struct i2c_client *client,
 	struct mn88473_config *config = client->dev.platform_data;
 	struct mn88473_dev *dev;
 	int ret;
-	unsigned int utmp;
+	unsigned int uitmp;
 	static const struct regmap_config regmap_config = {
 		.reg_bits = 8,
 		.val_bits = 8,
@@ -393,7 +456,7 @@ static int mn88473_probe(struct i2c_client *client,
 
 	dev_dbg(&client->dev, "\n");
 
-	/* Caller really need to provide pointer for frontend we create. */
+	/* Caller really need to provide pointer for frontend we create */
 	if (config->fe == NULL) {
 		dev_err(&client->dev, "frontend pointer not defined\n");
 		ret = -EINVAL;
@@ -406,11 +469,15 @@ static int mn88473_probe(struct i2c_client *client,
 		goto err;
 	}
 
-	dev->i2c_wr_max = config->i2c_wr_max;
-	if (!config->xtal)
-		dev->xtal = 25000000;
+	if (config->i2c_wr_max)
+		dev->i2c_wr_max = config->i2c_wr_max;
 	else
-		dev->xtal = config->xtal;
+		dev->i2c_wr_max = ~0;
+
+	if (config->xtal)
+		dev->clk = config->xtal;
+	else
+		dev->clk = 25000000;
 	dev->client[0] = client;
 	dev->regmap[0] = regmap_init_i2c(dev->client[0], &regmap_config);
 	if (IS_ERR(dev->regmap[0])) {
@@ -418,15 +485,25 @@ static int mn88473_probe(struct i2c_client *client,
 		goto err_kfree;
 	}
 
-	/* check demod answers to I2C */
-	ret = regmap_read(dev->regmap[0], 0x00, &utmp);
+	/* Check demod answers with correct chip id */
+	ret = regmap_read(dev->regmap[0], 0xff, &uitmp);
 	if (ret)
 		goto err_regmap_0_regmap_exit;
 
+	dev_dbg(&client->dev, "chip id=%02x\n", uitmp);
+
+	if (uitmp != 0x03) {
+		ret = -ENODEV;
+		goto err_regmap_0_regmap_exit;
+	}
+
 	/*
-	 * Chip has three I2C addresses for different register pages. Used
+	 * Chip has three I2C addresses for different register banks. Used
 	 * addresses are 0x18, 0x1a and 0x1c. We register two dummy clients,
-	 * 0x1a and 0x1c, in order to get own I2C client for each register page.
+	 * 0x1a and 0x1c, in order to get own I2C client for each register bank.
+	 *
+	 * Also, register bank 2 do not support sequential I/O. Only single
+	 * register write or read is allowed to that bank.
 	 */
 	dev->client[1] = i2c_new_dummy(client->adapter, 0x1a);
 	if (dev->client[1] == NULL) {
@@ -456,13 +533,19 @@ static int mn88473_probe(struct i2c_client *client,
 	}
 	i2c_set_clientdata(dev->client[2], dev);
 
-	/* create dvb_frontend */
-	memcpy(&dev->fe.ops, &mn88473_ops, sizeof(struct dvb_frontend_ops));
-	dev->fe.demodulator_priv = client;
-	*config->fe = &dev->fe;
+	/* Sleep because chip is active by default */
+	ret = regmap_write(dev->regmap[2], 0x05, 0x3e);
+	if (ret)
+		goto err_client_2_i2c_unregister_device;
+
+	/* Create dvb frontend */
+	memcpy(&dev->frontend.ops, &mn88473_ops, sizeof(dev->frontend.ops));
+	dev->frontend.demodulator_priv = client;
+	*config->fe = &dev->frontend;
 	i2c_set_clientdata(client, dev);
 
-	dev_info(&dev->client[0]->dev, "Panasonic MN88473 successfully attached\n");
+	dev_info(&client->dev, "Panasonic MN88473 successfully identified\n");
+
 	return 0;
 
 err_client_2_i2c_unregister_device:
@@ -507,7 +590,8 @@ MODULE_DEVICE_TABLE(i2c, mn88473_id_table);
 
 static struct i2c_driver mn88473_driver = {
 	.driver = {
-		.name	= "mn88473",
+		.name	             = "mn88473",
+		.suppress_bind_attrs = true,
 	},
 	.probe		= mn88473_probe,
 	.remove		= mn88473_remove,
diff --git a/drivers/media/dvb-frontends/mn88473.h b/drivers/media/dvb-frontends/mn88473.h
index c717ebed..2aa5181 100644
--- a/drivers/media/dvb-frontends/mn88473.h
+++ b/drivers/media/dvb-frontends/mn88473.h
@@ -22,10 +22,16 @@
 struct mn88473_config {
 	/*
 	 * Max num of bytes given I2C adapter could write at once.
-	 * Default: none
+	 * Default: unlimited
 	 */
 	u16 i2c_wr_max;
 
+	/*
+	 * Xtal frequency Hz.
+	 * Default: 25000000
+	 */
+	u32 xtal;
+
 
 	/* Everything after that is returned by the driver. */
 
@@ -33,12 +39,6 @@ struct mn88473_config {
 	 * DVB frontend.
 	 */
 	struct dvb_frontend **fe;
-
-	/*
-	 * Xtal frequency.
-	 * Hz
-	 */
-	u32 xtal;
 };
 
 #endif
diff --git a/drivers/media/dvb-frontends/mn88473_priv.h b/drivers/media/dvb-frontends/mn88473_priv.h
index 54beb42..e6c6589 100644
--- a/drivers/media/dvb-frontends/mn88473_priv.h
+++ b/drivers/media/dvb-frontends/mn88473_priv.h
@@ -27,11 +27,10 @@
 struct mn88473_dev {
 	struct i2c_client *client[3];
 	struct regmap *regmap[3];
-	struct dvb_frontend fe;
+	struct dvb_frontend frontend;
 	u16 i2c_wr_max;
-	enum fe_delivery_system delivery_system;
-	bool warm; /* FW running */
-	u32 xtal;
+	bool active;
+	u32 clk;
 };
 
 #endif
-- 
http://palosaari.fi/

[PATCH 3/4] rtl2832: improve slave TS control

[Antti Palosaari]

Add callback parameter to select enable / disable slave TS and use
it when slave demod is in use.

Signed-off-by: Antti Palosaari <crope@iki.fi>
---
 drivers/media/dvb-frontends/rtl2832.c   | 72 ++++++++++++++++++---------------
 drivers/media/dvb-frontends/rtl2832.h   |  4 +-
 drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 24 +++++------
 3 files changed, 54 insertions(+), 46 deletions(-)

diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index 10f2119..a9b2646 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -347,6 +347,10 @@ static int rtl2832_init(struct dvb_frontend *fe)
 
 	dev_dbg(&client->dev, "\n");
 
+	ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0);
+	if (ret)
+		goto err;
+
 	for (i = 0; i < ARRAY_SIZE(rtl2832_initial_regs); i++) {
 		ret = rtl2832_wr_demod_reg(dev, rtl2832_initial_regs[i].reg,
 			rtl2832_initial_regs[i].value);
@@ -491,11 +495,6 @@ static int rtl2832_set_frontend(struct dvb_frontend *fe)
 	if (fe->ops.tuner_ops.set_params)
 		fe->ops.tuner_ops.set_params(fe);
 
-	/* PIP mode related */
-	ret = rtl2832_bulk_write(client, 0x192, "\x00\x0f\xff", 3);
-	if (ret)
-		goto err;
-
 	/* If the frontend has get_if_frequency(), use it */
 	if (fe->ops.tuner_ops.get_if_frequency) {
 		u32 if_freq;
@@ -1081,37 +1080,46 @@ static struct i2c_adapter *rtl2832_get_i2c_adapter(struct i2c_client *client)
 	return dev->i2c_adapter_tuner;
 }
 
-static int rtl2832_enable_slave_ts(struct i2c_client *client)
+static int rtl2832_slave_ts_ctrl(struct i2c_client *client, bool enable)
 {
 	struct rtl2832_dev *dev = i2c_get_clientdata(client);
 	int ret;
 
-	dev_dbg(&client->dev, "\n");
-
-	ret = rtl2832_bulk_write(client, 0x10c, "\x5f\xff", 2);
-	if (ret)
-		goto err;
-
-	ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1);
-	if (ret)
-		goto err;
-
-	ret = rtl2832_bulk_write(client, 0x0bc, "\x18", 1);
-	if (ret)
-		goto err;
-
-	ret = rtl2832_bulk_write(client, 0x192, "\x7f\xf7\xff", 3);
-	if (ret)
-		goto err;
-
-	/* soft reset */
-	ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1);
-	if (ret)
-		goto err;
+	dev_dbg(&client->dev, "enable=%d\n", enable);
 
-	ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0);
-	if (ret)
-		goto err;
+	if (enable) {
+		ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x0);
+		if (ret)
+			goto err;
+		ret = rtl2832_bulk_write(client, 0x10c, "\x5f\xff", 2);
+		if (ret)
+			goto err;
+		ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x1);
+		if (ret)
+			goto err;
+		ret = rtl2832_bulk_write(client, 0x0bc, "\x18", 1);
+		if (ret)
+			goto err;
+		ret = rtl2832_bulk_write(client, 0x192, "\x7f\xf7\xff", 3);
+		if (ret)
+			goto err;
+	} else {
+		ret = rtl2832_bulk_write(client, 0x192, "\x00\x0f\xff", 3);
+		if (ret)
+			goto err;
+		ret = rtl2832_bulk_write(client, 0x0bc, "\x08", 1);
+		if (ret)
+			goto err;
+		ret = rtl2832_wr_demod_reg(dev, DVBT_PIP_ON, 0x0);
+		if (ret)
+			goto err;
+		ret = rtl2832_bulk_write(client, 0x10c, "\x00\x00", 2);
+		if (ret)
+			goto err;
+		ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1);
+		if (ret)
+			goto err;
+	}
 
 	return 0;
 err:
@@ -1267,7 +1275,7 @@ static int rtl2832_probe(struct i2c_client *client,
 	/* setup callbacks */
 	pdata->get_dvb_frontend = rtl2832_get_dvb_frontend;
 	pdata->get_i2c_adapter = rtl2832_get_i2c_adapter;
-	pdata->enable_slave_ts = rtl2832_enable_slave_ts;
+	pdata->slave_ts_ctrl = rtl2832_slave_ts_ctrl;
 	pdata->pid_filter = rtl2832_pid_filter;
 	pdata->pid_filter_ctrl = rtl2832_pid_filter_ctrl;
 	pdata->bulk_read = rtl2832_bulk_read;
diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h
index c29a4c2..6390af6 100644
--- a/drivers/media/dvb-frontends/rtl2832.h
+++ b/drivers/media/dvb-frontends/rtl2832.h
@@ -31,7 +31,7 @@
  * @tuner: Used tuner model.
  * @get_dvb_frontend: Get DVB frontend.
  * @get_i2c_adapter: Get I2C adapter.
- * @enable_slave_ts: Enable slave TS IF.
+ * @slave_ts_ctrl: Control slave TS interface.
  * @pid_filter: Set PID to PID filter.
  * @pid_filter_ctrl: Control PID filter.
  */
@@ -53,7 +53,7 @@ struct rtl2832_platform_data {
 
 	struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *);
 	struct i2c_adapter* (*get_i2c_adapter)(struct i2c_client *);
-	int (*enable_slave_ts)(struct i2c_client *);
+	int (*slave_ts_ctrl)(struct i2c_client *, bool);
 	int (*pid_filter)(struct dvb_frontend *, u8, u16, int);
 	int (*pid_filter_ctrl)(struct dvb_frontend *, int);
 /* private: Register access for SDR module use only */
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index c4c6e92..fa72642 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -1571,19 +1571,19 @@ static int rtl28xxu_frontend_ctrl(struct dvb_frontend *fe, int onoff)
 	if (dev->chip_id == CHIP_ID_RTL2831U)
 		return 0;
 
-	/* control internal demod ADC */
-	if (fe->id == 0 && onoff)
-		val = 0x48; /* enable ADC */
-	else
-		val = 0x00; /* disable ADC */
-
-	ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
-	if (ret)
-		goto err;
+	if (fe->id == 0) {
+		/* control internal demod ADC */
+		if (onoff)
+			val = 0x48; /* enable ADC */
+		else
+			val = 0x00; /* disable ADC */
 
-	/* bypass slave demod TS through master demod */
-	if (fe->id == 1 && onoff) {
-		ret = pdata->enable_slave_ts(dev->i2c_client_demod);
+		ret = rtl28xxu_wr_reg_mask(d, SYS_DEMOD_CTL, val, 0x48);
+		if (ret)
+			goto err;
+	} else if (fe->id == 1) {
+		/* bypass slave demod TS through master demod */
+		ret = pdata->slave_ts_ctrl(dev->i2c_client_demod, onoff);
 		if (ret)
 			goto err;
 	}
-- 
http://palosaari.fi/

[PATCH 4/4] rtl2832: move stats polling to read status

[Antti Palosaari]

Do statistics polling on read status in order to avoid
unnecessary delayed work.

Signed-off-by: Antti Palosaari <crope@iki.fi>
---
 drivers/media/dvb-frontends/rtl2832.c      | 79 ++++++++++++------------------
 drivers/media/dvb-frontends/rtl2832_priv.h |  1 -
 2 files changed, 30 insertions(+), 50 deletions(-)

diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index a9b2646..cb50488 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -408,8 +408,6 @@ static int rtl2832_init(struct dvb_frontend *fe)
 	c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 	c->post_bit_count.len = 1;
 	c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
-	/* start statistics polling */
-	schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
 	dev->sleeping = false;
 
 	return 0;
@@ -427,8 +425,6 @@ static int rtl2832_sleep(struct dvb_frontend *fe)
 	dev_dbg(&client->dev, "\n");
 
 	dev->sleeping = true;
-	/* stop statistics polling */
-	cancel_delayed_work_sync(&dev->stat_work);
 	dev->fe_status = 0;
 
 	ret = rtl2832_wr_demod_reg(dev, DVBT_SOFT_RST, 0x1);
@@ -691,8 +687,11 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status)
 {
 	struct rtl2832_dev *dev = fe->demodulator_priv;
 	struct i2c_client *client = dev->client;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 	int ret;
 	u32 uninitialized_var(tmp);
+	u8 u8tmp, buf[2];
+	u16 u16tmp;
 
 	dev_dbg(&client->dev, "\n");
 
@@ -713,45 +712,6 @@ static int rtl2832_read_status(struct dvb_frontend *fe, enum fe_status *status)
 	}
 
 	dev->fe_status = *status;
-	return 0;
-err:
-	dev_dbg(&client->dev, "failed=%d\n", ret);
-	return ret;
-}
-
-static int rtl2832_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
-	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-
-	/* report SNR in resolution of 0.1 dB */
-	if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
-		*snr = div_s64(c->cnr.stat[0].svalue, 100);
-	else
-		*snr = 0;
-
-	return 0;
-}
-
-static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
-	struct rtl2832_dev *dev = fe->demodulator_priv;
-
-	*ber = (dev->post_bit_error - dev->post_bit_error_prev);
-	dev->post_bit_error_prev = dev->post_bit_error;
-
-	return 0;
-}
-
-static void rtl2832_stat_work(struct work_struct *work)
-{
-	struct rtl2832_dev *dev = container_of(work, struct rtl2832_dev, stat_work.work);
-	struct i2c_client *client = dev->client;
-	struct dtv_frontend_properties *c = &dev->fe.dtv_property_cache;
-	int ret, tmp;
-	u8 u8tmp, buf[2];
-	u16 u16tmp;
-
-	dev_dbg(&client->dev, "\n");
 
 	/* signal strength */
 	if (dev->fe_status & FE_HAS_SIGNAL) {
@@ -788,11 +748,11 @@ static void rtl2832_stat_work(struct work_struct *work)
 
 		constellation = (u8tmp >> 2) & 0x03; /* [3:2] */
 		if (constellation > CONSTELLATION_NUM - 1)
-			goto err_schedule_delayed_work;
+			goto err;
 
 		hierarchy = (u8tmp >> 4) & 0x07; /* [6:4] */
 		if (hierarchy > HIERARCHY_NUM - 1)
-			goto err_schedule_delayed_work;
+			goto err;
 
 		ret = rtl2832_bulk_read(client, 0x40c, buf, 2);
 		if (ret)
@@ -834,11 +794,33 @@ static void rtl2832_stat_work(struct work_struct *work)
 		c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
 	}
 
-err_schedule_delayed_work:
-	schedule_delayed_work(&dev->stat_work, msecs_to_jiffies(2000));
-	return;
+	return 0;
 err:
 	dev_dbg(&client->dev, "failed=%d\n", ret);
+	return ret;
+}
+
+static int rtl2832_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+
+	/* report SNR in resolution of 0.1 dB */
+	if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
+		*snr = div_s64(c->cnr.stat[0].svalue, 100);
+	else
+		*snr = 0;
+
+	return 0;
+}
+
+static int rtl2832_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	struct rtl2832_dev *dev = fe->demodulator_priv;
+
+	*ber = (dev->post_bit_error - dev->post_bit_error_prev);
+	dev->post_bit_error_prev = dev->post_bit_error;
+
+	return 0;
 }
 
 /*
@@ -1235,7 +1217,6 @@ static int rtl2832_probe(struct i2c_client *client,
 	dev->pdata = client->dev.platform_data;
 	dev->sleeping = true;
 	INIT_DELAYED_WORK(&dev->i2c_gate_work, rtl2832_i2c_gate_work);
-	INIT_DELAYED_WORK(&dev->stat_work, rtl2832_stat_work);
 	/* create regmap */
 	mutex_init(&dev->regmap_mutex);
 	dev->regmap_config.reg_bits =  8,
diff --git a/drivers/media/dvb-frontends/rtl2832_priv.h b/drivers/media/dvb-frontends/rtl2832_priv.h
index 5dcd3a4..6b875f4 100644
--- a/drivers/media/dvb-frontends/rtl2832_priv.h
+++ b/drivers/media/dvb-frontends/rtl2832_priv.h
@@ -38,7 +38,6 @@ struct rtl2832_dev {
 	struct regmap *regmap;
 	struct i2c_adapter *i2c_adapter_tuner;
 	struct dvb_frontend fe;
-	struct delayed_work stat_work;
 	enum fe_status fe_status;
 	u64 post_bit_error_prev; /* for old DVBv3 read_ber() calculation */
 	u64 post_bit_error;
-- 
http://palosaari.fi/

Re: [PATCH 2/4] mn88473: finalize driver

[Benjamin Larsson]

On 02/07/2016 08:54 PM, Antti Palosaari wrote:
> Finalize the driver.
> It still lacks a lot of features, like all statistics and PLP
> filtering, but basic functionality and sensitivity is pretty good
> shape.
>
> Signed-off-by: Antti Palosaari<crope@iki.fi>
Reviewed-by: Benjamin Larsson <benjamin@southpole.se>