From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Micha=C5=82=20Miros=C5=82aw?= Subject: [PATCH v2 5/6] misc: atmel-ssc: get LRCLK pin selection from DT Date: Sat, 24 Aug 2019 22:26:56 +0200 Message-ID: <5f1fd1b8f646c5ced1d838c381b6973e5abccd53.1566677788.git.mirq-linux@rere.qmqm.pl> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: alsa-devel@alsa-project.org, devicetree@vger.kernel.org Cc: Alexandre Belloni , Arnd Bergmann , Chas Williams <3chas3@gmail.com>, Codrin Ciubotariu , Greg Kroah-Hartman , Jaroslav Kysela , Liam Girdwood , Ludovic Desroches , Mark Brown , Mark Rutland , Nicolas Ferre , Rob Herring , Takashi Iwai , linux-kernel@vger.kernel.org List-Id: alsa-devel@alsa-project.org Store LRCLK pin selection for use by ASoC DAI driver. Signed-off-by: Michał Mirosław --- v2: split from ASoC implementation --- drivers/misc/atmel-ssc.c | 9 +++++++++ include/linux/atmel-ssc.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c index ab4144ea1f11..1322e29bc37a 100644 --- a/drivers/misc/atmel-ssc.c +++ b/drivers/misc/atmel-ssc.c @@ -210,6 +210,15 @@ static int ssc_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; ssc->clk_from_rk_pin = of_property_read_bool(np, "atmel,clk-from-rk-pin"); + ssc->lrclk_from_tf_pin = + of_property_read_bool(np, "atmel,lrclk-from-tf-pin"); + ssc->lrclk_from_rf_pin = + of_property_read_bool(np, "atmel,lrclk-from-rf-pin"); + + if (ssc->lrclk_from_tf_pin && ssc->lrclk_from_rf_pin) { + dev_err(&pdev->dev, "both LRCLK from RK/TK options found in DT node"); + return -EINVAL; + } } regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h index 6091d2abc1eb..fbe1c2ffaa81 100644 --- a/include/linux/atmel-ssc.h +++ b/include/linux/atmel-ssc.h @@ -21,6 +21,8 @@ struct ssc_device { int user; int irq; bool clk_from_rk_pin; + bool lrclk_from_tf_pin; + bool lrclk_from_rf_pin; bool sound_dai; }; -- 2.20.1