From patchwork Fri Apr 29 10:53:21 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Ujfalusi X-Patchwork-Id: 8979881 Return-Path: X-Original-To: patchwork-alsa-devel@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 8D46CBF29F for ; Fri, 29 Apr 2016 10:58:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8789320218 for ; Fri, 29 Apr 2016 10:58:38 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id 3A78C201FA for ; Fri, 29 Apr 2016 10:58:37 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 2297F2667F4; Fri, 29 Apr 2016 12:58:31 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id DE6172667F5; Fri, 29 Apr 2016 12:55:33 +0200 (CEST) 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 1F4512614BB; Fri, 29 Apr 2016 12:55:31 +0200 (CEST) Received: from comal.ext.ti.com (comal.ext.ti.com [198.47.26.152]) by alsa0.perex.cz (Postfix) with ESMTP id 75B302651A5 for ; Fri, 29 Apr 2016 12:53:51 +0200 (CEST) Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id u3TAroYb007971; Fri, 29 Apr 2016 05:53:50 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id u3TAroGt029226; Fri, 29 Apr 2016 05:53:50 -0500 Received: from dflp32.itg.ti.com (10.64.6.15) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.224.2; Fri, 29 Apr 2016 05:53:50 -0500 Received: from dflp32.itg.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id u3TArPKn016445; Fri, 29 Apr 2016 05:53:46 -0500 From: Peter Ujfalusi To: , , , , Date: Fri, 29 Apr 2016 13:53:21 +0300 Message-ID: <1461927202-17677-7-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1461927202-17677-1-git-send-email-peter.ujfalusi@ti.com> References: <1461927202-17677-1-git-send-email-peter.ujfalusi@ti.com> MIME-Version: 1.0 Cc: devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, t-kristo@ti.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [alsa-devel] [PATCH v3 6/7] ASoC: omap-mcbsp: sidetone: Use the new callback for iclk handling 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP The McBSP sidetone (in OMAP3 McBSP2 and 3 module) is working with the module's interface clock. When the sidetone is enabled the iclk must not idle because it will result in choppy sidetone. Switch to use the new callback for handling the iclk allow/deny idle configuration. For this the driver needs to get the module's ick clock and pass the clk pointer to the callback. In DT boot, the pdata-quirk is going to set up the callback for the driver so save it if it is set in the pdata of the device. Signed-off-by: Peter Ujfalusi Acked-by: Mark Brown --- sound/soc/omap/mcbsp.c | 19 ++++++++++++++----- sound/soc/omap/mcbsp.h | 1 + sound/soc/omap/omap-mcbsp.c | 3 +++ 3 files changed, 18 insertions(+), 5 deletions(-) diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index ace73b97769f..76ce33199bf9 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -257,8 +257,8 @@ static void omap_st_on(struct omap_mcbsp *mcbsp) { unsigned int w; - if (mcbsp->pdata->enable_st_clock) - mcbsp->pdata->enable_st_clock(mcbsp->id, 1); + if (mcbsp->pdata->force_ick_on) + mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, true); /* Disable Sidetone clock auto-gating for normal operation */ w = MCBSP_ST_READ(mcbsp, SYSCONFIG); @@ -287,8 +287,8 @@ static void omap_st_off(struct omap_mcbsp *mcbsp) w = MCBSP_ST_READ(mcbsp, SYSCONFIG); MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w | ST_AUTOIDLE); - if (mcbsp->pdata->enable_st_clock) - mcbsp->pdata->enable_st_clock(mcbsp->id, 0); + if (mcbsp->pdata->force_ick_on) + mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, false); } static void omap_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir) @@ -946,6 +946,13 @@ static int omap_st_add(struct omap_mcbsp *mcbsp, struct resource *res) if (!st_data) return -ENOMEM; + st_data->mcbsp_iclk = clk_get(mcbsp->dev, "ick"); + if (IS_ERR(st_data->mcbsp_iclk)) { + dev_warn(mcbsp->dev, + "Failed to get ick, sidetone might be broken\n"); + st_data->mcbsp_iclk = NULL; + } + st_data->io_base_st = devm_ioremap(mcbsp->dev, res->start, resource_size(res)); if (!st_data->io_base_st) @@ -1093,6 +1100,8 @@ void omap_mcbsp_cleanup(struct omap_mcbsp *mcbsp) if (mcbsp->pdata->buffer_size) sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); - if (mcbsp->st_data) + if (mcbsp->st_data) { sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group); + clk_put(mcbsp->st_data->mcbsp_iclk); + } } diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/mcbsp.h index ce6cbbf923a4..61e93b1c185d 100644 --- a/sound/soc/omap/mcbsp.h +++ b/sound/soc/omap/mcbsp.h @@ -280,6 +280,7 @@ struct omap_mcbsp_reg_cfg { struct omap_mcbsp_st_data { void __iomem *io_base_st; + struct clk *mcbsp_iclk; bool running; bool enabled; s16 taps[128]; /* Sidetone filter coefficients */ diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index db07debb4a9c..d018e966e533 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -788,6 +788,7 @@ static int asoc_mcbsp_probe(struct platform_device *pdev) match = of_match_device(omap_mcbsp_of_match, &pdev->dev); if (match) { struct device_node *node = pdev->dev.of_node; + struct omap_mcbsp_platform_data *pdata_quirk = pdata; int buffer_size; pdata = devm_kzalloc(&pdev->dev, @@ -799,6 +800,8 @@ static int asoc_mcbsp_probe(struct platform_device *pdev) memcpy(pdata, match->data, sizeof(*pdata)); if (!of_property_read_u32(node, "ti,buffer-size", &buffer_size)) pdata->buffer_size = buffer_size; + if (pdata_quirk) + pdata->force_ick_on = pdata_quirk->force_ick_on; } else if (!pdata) { dev_err(&pdev->dev, "missing platform data.\n"); return -EINVAL;