From patchwork Mon Aug 27 13:26:44 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hebbar, Gururaja" X-Patchwork-Id: 1377531 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) by patchwork2.kernel.org (Postfix) with ESMTP id 27924DF280 for ; Mon, 27 Aug 2012 13:46:43 +0000 (UTC) Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id q7RDjCKg029924; Mon, 27 Aug 2012 08:45:12 -0500 Received: from DLEE74.ent.ti.com (dlee74.ent.ti.com [157.170.170.8]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7RDjBnO008381; Mon, 27 Aug 2012 08:45:11 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by DLEE74.ent.ti.com (157.170.170.8) with Microsoft SMTP Server id 14.1.323.3; Mon, 27 Aug 2012 08:45:11 -0500 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7RDjBd2010331; Mon, 27 Aug 2012 08:45:11 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id C7B8080627; Mon, 27 Aug 2012 08:45:10 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dbdp20.itg.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by linux.omap.com (Postfix) with ESMTP id 79B698062C for ; Mon, 27 Aug 2012 08:43:39 -0500 (CDT) Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id q7RDhZaW027878; Mon, 27 Aug 2012 19:13:38 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Mon, 27 Aug 2012 19:13:35 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id q7RDhZKB029765; Mon, 27 Aug 2012 19:13:35 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id D3EB9158008; Mon, 27 Aug 2012 19:13:31 +0530 (IST) Received: from linux-psp-server.india.ext.ti.com (linux-psp-server [192.168.247.76]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id q7RDhVI26846; Mon, 27 Aug 2012 19:13:31 +0530 (IST) From: "Hebbar, Gururaja" To: , , Subject: [PATCH V2 6/6] ASoC: tlv320aic3x: Add device tree bindings Date: Mon, 27 Aug 2012 18:56:44 +0530 Message-ID: <1346074004-22172-7-git-send-email-gururaja.hebbar@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1346074004-22172-1-git-send-email-gururaja.hebbar@ti.com> References: <1346074004-22172-1-git-send-email-gururaja.hebbar@ti.com> MIME-Version: 1.0 CC: , , , X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com Device tree support for tlv320aic3x CODEC driver. Signed-off-by: Hebbar, Gururaja --- Changes from V1: - use standard DT GPIO reference by phandle to populate gpio based DT parameters :000000 100644 0000000... e7b98f4... A Documentation/devicetree/bindings/sound/tlv320aic3x.txt :100644 100644 01485bd... 5708a97... M sound/soc/codecs/tlv320aic3x.c .../devicetree/bindings/sound/tlv320aic3x.txt | 20 +++++++++++++ sound/soc/codecs/tlv320aic3x.c | 31 ++++++++++++++++++++ 2 files changed, 51 insertions(+), 0 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt new file mode 100644 index 0000000..e7b98f4 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt @@ -0,0 +1,20 @@ +Texas Instruments - tlv320aic3x Codec module + +The tlv320aic3x serial control bus communicates through I2C protocols + +Required properties: +- compatible - "string" - "ti,tlv320aic3x" +- reg - - I2C slave address + + +Optional properties: + +- gpio-reset - gpio pin number used for codec reset +- ai3x-gpio-func - - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality + +Example: + +tlv320aic3x: tlv320aic3x@1b { + compatible = "ti,tlv320aic3x"; + reg = <0x1b>; +}; diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 01485bd..5708a97 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -40,6 +40,7 @@ #include #include #include +#include #include #include #include @@ -1457,6 +1458,8 @@ static int aic3x_i2c_probe(struct i2c_client *i2c, { struct aic3x_pdata *pdata = i2c->dev.platform_data; struct aic3x_priv *aic3x; + struct aic3x_setup_data *ai3x_setup; + struct device_node *np = i2c->dev.of_node; int ret; aic3x = devm_kzalloc(&i2c->dev, sizeof(struct aic3x_priv), GFP_KERNEL); @@ -1471,6 +1474,25 @@ static int aic3x_i2c_probe(struct i2c_client *i2c, if (pdata) { aic3x->gpio_reset = pdata->gpio_reset; aic3x->setup = pdata->setup; + } else if (np) { + ai3x_setup = devm_kzalloc(&i2c->dev, sizeof(*ai3x_setup), + GFP_KERNEL); + if (ai3x_setup == NULL) { + dev_err(&i2c->dev, "failed to create private data\n"); + return -ENOMEM; + } + + ret = of_get_named_gpio(np, "gpio-reset", 0); + if (ret >= 0) + aic3x->gpio_reset = ret; + else + aic3x->gpio_reset = -1; + + if (of_property_read_u32_array(np, "ai3x-gpio-func", + ai3x_setup->gpio_func, 2) >= 0) { + aic3x->setup = ai3x_setup; + } + } else { aic3x->gpio_reset = -1; } @@ -1488,11 +1510,20 @@ static int aic3x_i2c_remove(struct i2c_client *client) return 0; } +#if defined(CONFIG_OF) +static const struct of_device_id tlv320aic3x_of_match[] = { + { .compatible = "ti,tlv320aic3x", }, + {}, +}; +MODULE_DEVICE_TABLE(of, tlv320aic3x_of_match); +#endif + /* machine i2c codec control layer */ static struct i2c_driver aic3x_i2c_driver = { .driver = { .name = "tlv320aic3x-codec", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(tlv320aic3x_of_match), }, .probe = aic3x_i2c_probe, .remove = aic3x_i2c_remove,