From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oder Chiou Subject: [PATCH] ASoC: rt5514-spi: Get the period_bytes in the copy work to make sure the value correctly Date: Mon, 17 Sep 2018 19:03:09 +0800 Message-ID: <1537182189-13694-1-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 6DA3B2676A7 for ; Mon, 17 Sep 2018 13:03:18 +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, cychiang@google.com, yuhsuan@google.com, shumingf@realtek.com, flove@realtek.com List-Id: alsa-devel@alsa-project.org The value of period_bytes will get the zero before the hw_params() is not run completely. Move the function snd_pcm_lib_period_bytes() to copy work, and make sure that is not zero. Signed-off-by: Oder Chiou --- sound/soc/codecs/rt5514-spi.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 6478d10..4d46f45 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -91,6 +91,14 @@ static void rt5514_spi_copy_work(struct work_struct *work) runtime = rt5514_dsp->substream->runtime; period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream); + if (!period_bytes) { + schedule_delayed_work(&rt5514_dsp->copy_work, 5); + goto done; + } + + if (rt5514_dsp->buf_size % period_bytes) + rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) * + period_bytes; if (rt5514_dsp->get_size >= rt5514_dsp->buf_size) { rt5514_spi_burst_read(RT5514_BUFFER_VOICE_WP, (u8 *)&buf, @@ -149,13 +157,11 @@ static void rt5514_spi_copy_work(struct work_struct *work) static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) { - size_t period_bytes; u8 buf[8]; if (!rt5514_dsp->substream) return; - period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream); rt5514_dsp->get_size = 0; /** @@ -183,10 +189,6 @@ static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) rt5514_dsp->buf_size = rt5514_dsp->buf_limit - rt5514_dsp->buf_base; - if (rt5514_dsp->buf_size % period_bytes) - rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) * - period_bytes; - if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit && rt5514_dsp->buf_rp && rt5514_dsp->buf_size) schedule_delayed_work(&rt5514_dsp->copy_work, 0); -- 2.7.4