From patchwork Thu May 21 21:23:51 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antti Palosaari X-Patchwork-Id: 6459831 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C655C9F1C1 for ; Thu, 21 May 2015 21:24:15 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C08392052D for ; Thu, 21 May 2015 21:24:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BAA8D204AB for ; Thu, 21 May 2015 21:24:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161091AbbEUVYL (ORCPT ); Thu, 21 May 2015 17:24:11 -0400 Received: from mail.kapsi.fi ([217.30.184.167]:42751 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161017AbbEUVYK (ORCPT ); Thu, 21 May 2015 17:24:10 -0400 Received: from 85-23-164-23.bb.dnainternet.fi ([85.23.164.23] helo=localhost.localdomain.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1YvXwn-0002mA-Gu; Fri, 22 May 2015 00:24:09 +0300 From: Antti Palosaari To: linux-media@vger.kernel.org Cc: Antti Palosaari Subject: [PATCH 1/8] tda10071: implement I2C client bindings Date: Fri, 22 May 2015 00:23:51 +0300 Message-Id: <1432243438-12225-1-git-send-email-crope@iki.fi> X-Mailer: git-send-email 2.1.0 X-SA-Exim-Connect-IP: 85.23.164.23 X-SA-Exim-Mail-From: crope@iki.fi X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Implement I2C client bindings. Signed-off-by: Antti Palosaari --- drivers/media/dvb-frontends/tda10071.c | 95 +++++++++++++++++++++++++++++ drivers/media/dvb-frontends/tda10071.h | 29 +++++++++ drivers/media/dvb-frontends/tda10071_priv.h | 1 + 3 files changed, 125 insertions(+) diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c index 4a19b85..3132854 100644 --- a/drivers/media/dvb-frontends/tda10071.c +++ b/drivers/media/dvb-frontends/tda10071.c @@ -1313,6 +1313,101 @@ static struct dvb_frontend_ops tda10071_ops = { .set_voltage = tda10071_set_voltage, }; +static struct dvb_frontend *tda10071_get_dvb_frontend(struct i2c_client *client) +{ + struct tda10071_priv *dev = i2c_get_clientdata(client); + + dev_dbg(&client->dev, "\n"); + + return &dev->fe; +} + +static int tda10071_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tda10071_priv *dev; + struct tda10071_platform_data *pdata = client->dev.platform_data; + int ret; + u8 u8tmp; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + ret = -ENOMEM; + goto err; + } + + dev->client = client; + dev->i2c = client->adapter; + dev->cfg.demod_i2c_addr = client->addr; + dev->cfg.i2c_wr_max = pdata->i2c_wr_max; + dev->cfg.ts_mode = pdata->ts_mode; + dev->cfg.spec_inv = pdata->spec_inv; + dev->cfg.xtal = pdata->clk; + dev->cfg.pll_multiplier = pdata->pll_multiplier; + dev->cfg.tuner_i2c_addr = pdata->tuner_i2c_addr; + + /* chip ID */ + ret = tda10071_rd_reg(dev, 0xff, &u8tmp); + if (ret || u8tmp != 0x0f) + goto err_kfree; + + /* chip type */ + ret = tda10071_rd_reg(dev, 0xdd, &u8tmp); + if (ret || u8tmp != 0x00) + goto err_kfree; + + /* chip version */ + ret = tda10071_rd_reg(dev, 0xfe, &u8tmp); + if (ret || u8tmp != 0x01) + goto err_kfree; + + /* create dvb_frontend */ + memcpy(&dev->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops)); + dev->fe.ops.release = NULL; + dev->fe.demodulator_priv = dev; + i2c_set_clientdata(client, dev); + + /* setup callbacks */ + pdata->get_dvb_frontend = tda10071_get_dvb_frontend; + + dev_info(&client->dev, "NXP TDA10071 successfully identified\n"); + return 0; +err_kfree: + kfree(dev); +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int tda10071_remove(struct i2c_client *client) +{ + struct tda10071_dev *dev = i2c_get_clientdata(client); + + dev_dbg(&client->dev, "\n"); + + kfree(dev); + return 0; +} + +static const struct i2c_device_id tda10071_id_table[] = { + {"tda10071_cx24118", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, tda10071_id_table); + +static struct i2c_driver tda10071_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "tda10071", + .suppress_bind_attrs = true, + }, + .probe = tda10071_probe, + .remove = tda10071_remove, + .id_table = tda10071_id_table, +}; + +module_i2c_driver(tda10071_driver); + MODULE_AUTHOR("Antti Palosaari "); MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/media/dvb-frontends/tda10071.h b/drivers/media/dvb-frontends/tda10071.h index da89f42..0ffbfa5 100644 --- a/drivers/media/dvb-frontends/tda10071.h +++ b/drivers/media/dvb-frontends/tda10071.h @@ -24,6 +24,35 @@ #include #include +/* + * I2C address + * 0x55, + */ + +/** + * struct tda10071_platform_data - Platform data for the tda10071 driver + * @clk: Clock frequency. + * @i2c_wr_max: Max bytes I2C adapter can write at once. + * @ts_mode: TS mode. + * @spec_inv: Input spectrum inversion. + * @pll_multiplier: PLL multiplier. + * @tuner_i2c_addr: CX24118A tuner I2C address (0x14, 0x54, ...). + * @get_dvb_frontend: Get DVB frontend. + */ + +struct tda10071_platform_data { + u32 clk; + u16 i2c_wr_max; +#define TDA10071_TS_SERIAL 0 +#define TDA10071_TS_PARALLEL 1 + u8 ts_mode; + bool spec_inv; + u8 pll_multiplier; + u8 tuner_i2c_addr; + + struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *); +}; + struct tda10071_config { /* Demodulator I2C address. * Default: none, must set diff --git a/drivers/media/dvb-frontends/tda10071_priv.h b/drivers/media/dvb-frontends/tda10071_priv.h index 03f839c..7ec69ac 100644 --- a/drivers/media/dvb-frontends/tda10071_priv.h +++ b/drivers/media/dvb-frontends/tda10071_priv.h @@ -28,6 +28,7 @@ struct tda10071_priv { struct i2c_adapter *i2c; struct dvb_frontend fe; + struct i2c_client *client; struct tda10071_config cfg; u8 meas_count[2];