From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932139AbeBSUgm (ORCPT ); Mon, 19 Feb 2018 15:36:42 -0500 Received: from mail-wr0-f196.google.com ([209.85.128.196]:34972 "EHLO mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932108AbeBSUgk (ORCPT ); Mon, 19 Feb 2018 15:36:40 -0500 X-Google-Smtp-Source: AH8x2253iqN7TqqC5szcL6aLfJA1H32MlEPYrN41hMZZK6XN0o6OKE9YqieclraET+hW7CrGTQQsSQ== From: Kirill Marinushkin To: Takashi Sakamoto Cc: Kirill Marinushkin , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] ASoC: topology: Add missing clock gating parameter when parsing hw_configs Date: Mon, 19 Feb 2018 21:36:35 +0100 Message-Id: <20180219203636.3692-2-k.marinushkin@gmail.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20180219203636.3692-1-k.marinushkin@gmail.com> References: <458b66ab-da0a-8063-6555-13fb152c83a4@sakamocchi.jp> <20180219203636.3692-1-k.marinushkin@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Clock gating parameter is a part of `dai_fmt`. It is supported by `alsa-lib` when creating a topology binary file, but ignored by kernel when loading this topology file. After applying this commit, the clock gating parameter is not ignored any more. The old behaviour is not broken, as by default the parameter value is 0. For example, the following config, based on alsa-lib/src/conf/topology/broadwell/broadwell.conf, is now supported: ~~~~ SectionHWConfig."CodecHWConfig" { id "1" format "I2S" # physical audio format. bclk "master" # Platform is master of bit clock fsync "master" # platform is master of fsync pm_gate_clocks "true" # clock can be gated } SectionLink."Codec" { # used for binding to the physical link id "0" hw_configs [ "CodecHWConfig" ] default_hw_conf_id "1" } ~~~~ Signed-off-by: Kirill Marinushkin Cc: Takashi Sakamoto Cc: Liam Girdwood Cc: Mark Brown Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org --- sound/soc/soc-topology.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 01a50413c66f..bac70676a6b4 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -1981,6 +1981,13 @@ static void set_link_hw_format(struct snd_soc_dai_link *link, link->dai_fmt = hw_config->fmt & SND_SOC_DAIFMT_FORMAT_MASK; + /* clock gating */ + if (hw_config->clock_gated == SND_SOC_TPLG_DAI_CLK_GATE_GATED) + link->dai_fmt |= SND_SOC_DAIFMT_GATED; + else if (hw_config->clock_gated == + SND_SOC_TPLG_DAI_CLK_GATE_CONT) + link->dai_fmt |= SND_SOC_DAIFMT_CONT; + /* clock signal polarity */ invert_bclk = hw_config->invert_bclk; invert_fsync = hw_config->invert_fsync; -- 2.13.6