From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oder Chiou Subject: [PATCH] ASoC: rt5514: reset dma_offset at hw_params Date: Mon, 7 Aug 2017 18:39:32 +0800 Message-ID: <1502102372-27635-1-git-send-email-oder_chiou@realtek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by alsa0.perex.cz (Postfix) with ESMTP id C66DD2669F6 for ; Mon, 7 Aug 2017 12:39:41 +0200 (CEST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: broonie@kernel.org, lgirdwood@gmail.com Cc: Oder Chiou , jack.yu@realtek.com, alsa-devel@alsa-project.org, Hsin-Yu Chao , shumingf@realtek.com, bardliao@realtek.com, flove@realtek.com List-Id: alsa-devel@alsa-project.org dma_offset needs reset every time otherwise for consecutive PCM open the last dma_offset value will cause incorrect pointer position be reported to user space. Signed-off-by: Hsin-Yu Chao Signed-off-by: Oder Chiou --- sound/soc/codecs/rt5514-spi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 6f513cc..640193d 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -151,7 +151,6 @@ static irqreturn_t rt5514_spi_irq(int irq, void *data) u8 buf[8]; rt5514_dsp->get_size = 0; - rt5514_dsp->dma_offset = 0; /** * The address area x1800XXXX is the register address, and it cannot @@ -205,6 +204,7 @@ static int rt5514_spi_hw_params(struct snd_pcm_substream *substream, ret = snd_pcm_lib_alloc_vmalloc_buffer(substream, params_buffer_bytes(hw_params)); rt5514_dsp->substream = substream; + rt5514_dsp->dma_offset = 0; mutex_unlock(&rt5514_dsp->dma_lock); return ret; -- 2.7.4