From patchwork Tue May 5 21:58:30 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antti Palosaari X-Patchwork-Id: 6344321 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 B11F59F1C2 for ; Tue, 5 May 2015 21:59:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C8F892022D for ; Tue, 5 May 2015 21:59:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CA62320259 for ; Tue, 5 May 2015 21:59:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753561AbbEEV7Y (ORCPT ); Tue, 5 May 2015 17:59:24 -0400 Received: from mail.kapsi.fi ([217.30.184.167]:51448 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751551AbbEEV67 (ORCPT ); Tue, 5 May 2015 17:58:59 -0400 Received: from dyn3-82-128-189-223.psoas.suomi.net ([82.128.189.223] 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 1Ypkri-0003Gx-Lz; Wed, 06 May 2015 00:58:58 +0300 From: Antti Palosaari To: linux-media@vger.kernel.org Cc: Antti Palosaari Subject: [PATCH 09/21] tua9001: add I2C bindings Date: Wed, 6 May 2015 00:58:30 +0300 Message-Id: <1430863122-9888-9-git-send-email-crope@iki.fi> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1430863122-9888-1-git-send-email-crope@iki.fi> References: <1430863122-9888-1-git-send-email-crope@iki.fi> X-SA-Exim-Connect-IP: 82.128.189.223 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 Add I2C bindings. Signed-off-by: Antti Palosaari --- drivers/media/tuners/tua9001.c | 100 +++++++++++++++++++++++++++++++++++- drivers/media/tuners/tua9001.h | 13 +++++ drivers/media/tuners/tua9001_priv.h | 4 +- 3 files changed, 114 insertions(+), 3 deletions(-) diff --git a/drivers/media/tuners/tua9001.c b/drivers/media/tuners/tua9001.c index 83a6240..55cac20 100644 --- a/drivers/media/tuners/tua9001.c +++ b/drivers/media/tuners/tua9001.c @@ -28,7 +28,7 @@ static int tua9001_wr_reg(struct tua9001_priv *priv, u8 reg, u16 val) u8 buf[3] = { reg, (val >> 8) & 0xff, (val >> 0) & 0xff }; struct i2c_msg msg[1] = { { - .addr = priv->cfg->i2c_addr, + .addr = priv->i2c_addr, .flags = 0, .len = sizeof(buf), .buf = buf, @@ -253,7 +253,7 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe, if (priv == NULL) return NULL; - priv->cfg = cfg; + priv->i2c_addr = cfg->i2c_addr; priv->i2c = i2c; if (fe->callback) { @@ -289,6 +289,102 @@ err: } EXPORT_SYMBOL(tua9001_attach); +static int tua9001_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tua9001_priv *dev; + struct tua9001_platform_data *pdata = client->dev.platform_data; + struct dvb_frontend *fe = pdata->dvb_frontend; + int ret; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + ret = -ENOMEM; + goto err; + } + + dev->client = client; + dev->i2c_addr = client->addr; + dev->i2c = client->adapter; + dev->fe = pdata->dvb_frontend; + + if (fe->callback) { + 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; + } + + fe->tuner_priv = dev; + memcpy(&fe->ops.tuner_ops, &tua9001_tuner_ops, + sizeof(struct dvb_tuner_ops)); + fe->ops.tuner_ops.release = NULL; + i2c_set_clientdata(client, dev); + + dev_info(&client->dev, "Infineon TUA 9001 successfully attached\n"); + return 0; +err_kfree: + kfree(dev); +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int tua9001_remove(struct i2c_client *client) +{ + struct tua9001_priv *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; +} + +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 = { + .owner = THIS_MODULE, + .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 TUA 9001 silicon tuner driver"); MODULE_AUTHOR("Antti Palosaari "); MODULE_LICENSE("GPL"); diff --git a/drivers/media/tuners/tua9001.h b/drivers/media/tuners/tua9001.h index 2c3375c..0b4fc8d 100644 --- a/drivers/media/tuners/tua9001.h +++ b/drivers/media/tuners/tua9001.h @@ -24,6 +24,19 @@ #include #include "dvb_frontend.h" +/* + * I2C address + * 0x60, + */ + +/** + * struct tua9001_platform_data - Platform data for the tua9001 driver + * @dvb_frontend: DVB frontend. + */ +struct tua9001_platform_data { + struct dvb_frontend *dvb_frontend; +}; + struct tua9001_config { /* * I2C address diff --git a/drivers/media/tuners/tua9001_priv.h b/drivers/media/tuners/tua9001_priv.h index 73cc1ce..3282a1a 100644 --- a/drivers/media/tuners/tua9001_priv.h +++ b/drivers/media/tuners/tua9001_priv.h @@ -27,8 +27,10 @@ struct reg_val { }; struct tua9001_priv { - struct tua9001_config *cfg; + struct i2c_client *client; struct i2c_adapter *i2c; + u8 i2c_addr; + struct dvb_frontend *fe; }; #endif