From patchwork Mon Oct 31 18:30:52 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Brown X-Patchwork-Id: 9406299 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B215460234 for ; Mon, 31 Oct 2016 19:07:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A4F6F28C58 for ; Mon, 31 Oct 2016 19:07:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9867728C71; Mon, 31 Oct 2016 19:07:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5C1AB28C58 for ; Mon, 31 Oct 2016 19:07:50 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id C8B07266DB2; Mon, 31 Oct 2016 20:07:48 +0100 (CET) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 815DD266D44; Mon, 31 Oct 2016 20:05:27 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 579BD266D8B; Mon, 31 Oct 2016 19:31:19 +0100 (CET) Received: from mezzanine.sirena.org.uk (mezzanine.sirena.org.uk [106.187.55.193]) by alsa0.perex.cz (Postfix) with ESMTP id E13C6261B03 for ; Mon, 31 Oct 2016 19:31:11 +0100 (CET) Received: from 70-90-202-86-albuquerque.hfc.comcastbusiness.net ([70.90.202.86] helo=finisterre) by mezzanine.sirena.org.uk with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1c1HMJ-0007nM-6F; Mon, 31 Oct 2016 18:31:01 +0000 Received: from broonie by finisterre with local (Exim 4.87) (envelope-from ) id 1c1HMC-0002Bq-4Q; Mon, 31 Oct 2016 12:30:52 -0600 From: Mark Brown To: Srinivas Kandagatla In-Reply-To: <1477913145-8259-2-git-send-email-srinivas.kandagatla@linaro.org> Message-Id: Date: Mon, 31 Oct 2016 12:30:52 -0600 X-SA-Exim-Connect-IP: 70.90.202.86 X-SA-Exim-Mail-From: broonie@sirena.org.uk X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure Cc: alsa-devel@alsa-project.org, Banajit Goswami , Kuninori Morimoto , linux-kernel@vger.kernel.org, Takashi Iwai , Kenneth Westfield , Liam Girdwood , Mark Brown Subject: [alsa-devel] Applied "ASoC: lpass-platform: Fix broken pcm data usage" to the asoc tree X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP The patch ASoC: lpass-platform: Fix broken pcm data usage has been applied to the asoc tree at git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From 022d00ee0b55e6cd49048acadb9bf76c37e538d8 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Mon, 31 Oct 2016 11:25:43 +0000 Subject: [PATCH] ASoC: lpass-platform: Fix broken pcm data usage This patch fixes lpass-platform driver which was broken in v4.9-rc1. lpass_pcm_data data structure holds information specific to stream. Holding a single private pointer to it in global lpass_data will not work, because it would be overwritten by for each pcm instance. This code was breaking playback when we have both playback and capture pcm streams, as playback settings are over written by capture settings. Fix this by moving channel allocation logic out of pcm_new to pcm_open so that we can store the stream specific information in private_data of snd_pcm_runtime. Fixes: 6adcbdcd4b6e ("ASoC: lpass-platform: don't use snd_soc_pcm_set_drvdata()") Signed-off-by: Srinivas Kandagatla Signed-off-by: Mark Brown --- sound/soc/qcom/lpass-platform.c | 165 +++++++++++++++++++--------------------- sound/soc/qcom/lpass.h | 1 - 2 files changed, 79 insertions(+), 87 deletions(-) diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index e2ff538a8aa5..07000f53db44 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -61,7 +61,40 @@ static int lpass_platform_pcmops_open(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; - int ret; + struct snd_soc_dai *cpu_dai = soc_runtime->cpu_dai; + struct lpass_data *drvdata = + snd_soc_platform_get_drvdata(soc_runtime->platform); + struct lpass_variant *v = drvdata->variant; + int ret, dma_ch, dir = substream->stream; + struct lpass_pcm_data *data; + + data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->i2s_port = cpu_dai->driver->id; + runtime->private_data = data; + + if (v->alloc_dma_channel) + dma_ch = v->alloc_dma_channel(drvdata, dir); + if (dma_ch < 0) + return dma_ch; + + drvdata->substream[dma_ch] = substream; + + ret = regmap_write(drvdata->lpaif_map, + LPAIF_DMACTL_REG(v, dma_ch, dir), 0); + if (ret) { + dev_err(soc_runtime->dev, + "%s() error writing to rdmactl reg: %d\n", + __func__, ret); + return ret; + } + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + data->rdma_ch = dma_ch; + else + data->wrdma_ch = dma_ch; snd_soc_set_runtime_hwparams(substream, &lpass_platform_pcm_hardware); @@ -80,13 +113,40 @@ static int lpass_platform_pcmops_open(struct snd_pcm_substream *substream) return 0; } +static int lpass_platform_pcmops_close(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; + struct lpass_data *drvdata = + snd_soc_platform_get_drvdata(soc_runtime->platform); + struct lpass_variant *v = drvdata->variant; + struct lpass_pcm_data *data; + int dma_ch, dir = substream->stream; + + data = runtime->private_data; + v = drvdata->variant; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + dma_ch = data->rdma_ch; + else + dma_ch = data->wrdma_ch; + + drvdata->substream[dma_ch] = NULL; + + if (v->free_dma_channel) + v->free_dma_channel(drvdata, dma_ch); + + return 0; +} + static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_pcm_data *pcm_data = drvdata->private_data; + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; struct lpass_variant *v = drvdata->variant; snd_pcm_format_t format = params_format(params); unsigned int channels = params_channels(params); @@ -179,7 +239,8 @@ static int lpass_platform_pcmops_hw_free(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_pcm_data *pcm_data = drvdata->private_data; + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; struct lpass_variant *v = drvdata->variant; unsigned int reg; int ret; @@ -203,7 +264,8 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_pcm_data *pcm_data = drvdata->private_data; + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; struct lpass_variant *v = drvdata->variant; int ret, ch, dir = substream->stream; @@ -257,7 +319,8 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_pcm_data *pcm_data = drvdata->private_data; + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; struct lpass_variant *v = drvdata->variant; int ret, ch, dir = substream->stream; @@ -333,7 +396,8 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer( struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_pcm_data *pcm_data = drvdata->private_data; + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; struct lpass_variant *v = drvdata->variant; unsigned int base_addr, curr_addr; int ret, ch, dir = substream->stream; @@ -374,6 +438,7 @@ static int lpass_platform_pcmops_mmap(struct snd_pcm_substream *substream, static const struct snd_pcm_ops lpass_platform_pcm_ops = { .open = lpass_platform_pcmops_open, + .close = lpass_platform_pcmops_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = lpass_platform_pcmops_hw_params, .hw_free = lpass_platform_pcmops_hw_free, @@ -470,117 +535,45 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) { struct snd_pcm *pcm = soc_runtime->pcm; struct snd_pcm_substream *psubstream, *csubstream; - struct snd_soc_dai *cpu_dai = soc_runtime->cpu_dai; - struct lpass_data *drvdata = - snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_variant *v = drvdata->variant; int ret = -EINVAL; - struct lpass_pcm_data *data; size_t size = lpass_platform_pcm_hardware.buffer_bytes_max; - data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL); - if (!data) - return -ENOMEM; - - data->i2s_port = cpu_dai->driver->id; - drvdata->private_data = data; - psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; if (psubstream) { - if (v->alloc_dma_channel) - data->rdma_ch = v->alloc_dma_channel(drvdata, - SNDRV_PCM_STREAM_PLAYBACK); - - if (data->rdma_ch < 0) - return data->rdma_ch; - - drvdata->substream[data->rdma_ch] = psubstream; - ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, soc_runtime->platform->dev, size, &psubstream->dma_buffer); - if (ret) - goto playback_alloc_err; - - ret = regmap_write(drvdata->lpaif_map, - LPAIF_RDMACTL_REG(v, data->rdma_ch), 0); if (ret) { - dev_err(soc_runtime->dev, - "%s() error writing to rdmactl reg: %d\n", - __func__, ret); - goto capture_alloc_err; + dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); + return ret; } } csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; if (csubstream) { - if (v->alloc_dma_channel) - data->wrdma_ch = v->alloc_dma_channel(drvdata, - SNDRV_PCM_STREAM_CAPTURE); - - if (data->wrdma_ch < 0) { - ret = data->wrdma_ch; - goto capture_alloc_err; - } - - drvdata->substream[data->wrdma_ch] = csubstream; - ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, soc_runtime->platform->dev, size, &csubstream->dma_buffer); - if (ret) - goto capture_alloc_err; - - ret = regmap_write(drvdata->lpaif_map, - LPAIF_WRDMACTL_REG(v, data->wrdma_ch), 0); if (ret) { - dev_err(soc_runtime->dev, - "%s() error writing to wrdmactl reg: %d\n", - __func__, ret); - goto capture_reg_err; + dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); + if (psubstream) + snd_dma_free_pages(&psubstream->dma_buffer); + return ret; } + } return 0; - -capture_reg_err: - if (csubstream) - snd_dma_free_pages(&csubstream->dma_buffer); - -capture_alloc_err: - if (psubstream) - snd_dma_free_pages(&psubstream->dma_buffer); - - playback_alloc_err: - dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); - - return ret; } static void lpass_platform_pcm_free(struct snd_pcm *pcm) { - struct snd_soc_pcm_runtime *rt; - struct lpass_data *drvdata; - struct lpass_pcm_data *data; - struct lpass_variant *v; struct snd_pcm_substream *substream; - int ch, i; + int i; for (i = 0; i < ARRAY_SIZE(pcm->streams); i++) { substream = pcm->streams[i].substream; if (substream) { - rt = substream->private_data; - drvdata = snd_soc_platform_get_drvdata(rt->platform); - data = drvdata->private_data; - - ch = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - ? data->rdma_ch - : data->wrdma_ch; - v = drvdata->variant; - drvdata->substream[ch] = NULL; - if (v->free_dma_channel) - v->free_dma_channel(drvdata, ch); - snd_dma_free_pages(&substream->dma_buffer); substream->dma_buffer.area = NULL; substream->dma_buffer.addr = 0; diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 35b3cea8207d..924971b6ded5 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -59,7 +59,6 @@ struct lpass_data { struct clk *pcnoc_mport_clk; struct clk *pcnoc_sway_clk; - void *private_data; }; /* Vairant data per each SOC */