From patchwork Thu Nov 19 03:45:32 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Songjun Wu X-Patchwork-Id: 7654681 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 9711ABF90C for ; Thu, 19 Nov 2015 03:53:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D35D520411 for ; Thu, 19 Nov 2015 03:53:35 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0B3F5203F7 for ; Thu, 19 Nov 2015 03:53:35 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZzGG5-0006nd-Ni; Thu, 19 Nov 2015 03:51:41 +0000 Received: from nasmtp01.atmel.com ([192.199.1.245] helo=DVREDG01.corp.atmel.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZzGG2-0006ma-H3 for linux-arm-kernel@lists.infradead.org; Thu, 19 Nov 2015 03:51:38 +0000 Received: from sjogate2.atmel.com (10.42.103.223) by DVREDG01.corp.atmel.com (10.42.103.30) with Microsoft SMTP Server id 14.3.235.1; Wed, 18 Nov 2015 20:51:11 -0700 Received: from shaarm01.corp.atmel.com (shaarm01.corp.atmel.com [10.217.6.34]) by sjogate2.atmel.com (8.13.6/8.13.6) with ESMTP id tAJ3iirM015614; Wed, 18 Nov 2015 19:44:45 -0800 (PST) From: Songjun Wu To: Subject: [PATCH] ASoC: Atmel: ClassD: supports mono audio Date: Thu, 19 Nov 2015 11:45:32 +0800 Message-ID: <1447904732-10784-1-git-send-email-songjun.wu@atmel.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151118_195138_630030_93F39111 X-CRM114-Status: UNSURE ( 9.61 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.8 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: alsa-devel@alsa-project.org, Liam Girdwood , linux-kernel@vger.kernel.org, Nicolas Ferre , Takashi Iwai , Jaroslav Kysela , Songjun Wu , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 Modify the code to support mono audio. Signed-off-by: Songjun Wu --- sound/soc/atmel/atmel-classd.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c index 2f5190b..10ac47d 100644 --- a/sound/soc/atmel/atmel-classd.c +++ b/sound/soc/atmel/atmel-classd.c @@ -106,7 +106,7 @@ static const struct snd_pcm_hardware atmel_classd_hw = { .rates = ATMEL_CLASSD_RATES, .rate_min = 8000, .rate_max = 96000, - .channels_min = 2, + .channels_min = 1, .channels_max = 2, .buffer_bytes_max = 64 * 1024, .period_bytes_min = 256, @@ -145,7 +145,7 @@ static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = { static struct snd_soc_dai_driver atmel_classd_cpu_dai = { .playback = { - .channels_min = 2, + .channels_min = 1, .channels_max = 2, .rates = ATMEL_CLASSD_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE,}, @@ -171,9 +171,13 @@ atmel_classd_platform_configure_dma(struct snd_pcm_substream *substream, return -EINVAL; } + if (params_channels(params) == 1) + slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + else + slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + slave_config->direction = DMA_MEM_TO_DEV; slave_config->dst_addr = dd->phy_base + CLASSD_THR; - slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; slave_config->dst_maxburst = 1; slave_config->src_maxburst = 1; slave_config->device_fc = false; @@ -486,7 +490,7 @@ static struct snd_soc_dai_driver atmel_classd_codec_dai = { .name = ATMEL_CLASSD_CODEC_DAI_NAME, .playback = { .stream_name = "Playback", - .channels_min = 2, + .channels_min = 1, .channels_max = 2, .rates = ATMEL_CLASSD_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE,