Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Thu, 30 Jul 2020 17:03:40 +0200
Message-ID: <s5h8sf1caer.wl-tiwai@suse.de>
From:   Takashi Iwai <tiwai@suse.de>
To:     Brent Lu <brent.lu@intel.com>
Cc:     alsa-devel@alsa-project.org,
        Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>,
        Cezary Rojewski <cezary.rojewski@intel.com>,
        Kai Vehmanen <kai.vehmanen@linux.intel.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
        linux-kernel@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
        Jie Yang <yang.jie@linux.intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
        Liam Girdwood <liam.r.girdwood@linux.intel.com>,
        Sam McNally <sammc@chromium.org>,
        Mark Brown <broonie@kernel.org>,
        Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
        Yu-Hsuan Hsu <yuhsuan@chromium.org>,
        Daniel Stuart <daniel.stuart14@gmail.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Damian van Soelen <dj.vsoelen@gmail.com>
Subject: Re: [PATCH v2 0/2] Add period size constraint for Atom Chromebook
In-Reply-To: <1596096815-32043-1-git-send-email-brent.lu@intel.com>
References: <1596096815-32043-1-git-send-email-brent.lu@intel.com>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka)
 FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3
 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Thu, 30 Jul 2020 10:13:33 +0200,
Brent Lu wrote:
> 
> Two different constraints are implemented: one is in platform's CPU
> DAI to enforce period sizes which are already used in Android BSP. The
> other is in Atom Chromebook's machine driver to use 240 as period size.
> 
> Changes since v1:
> -Add comma at the end of media_period_size array declaration.

Is it a hardware restriction?  Unless it's a must for some hardware
issues, enforcing such a small period size is nothing but a drawback
for a system without CRAS.


thanks,

Takashi

> 
> Brent Lu (1):
>   ASoC: intel: atom: Add period size constraint
> 
> Yu-Hsuan Hsu (1):
>   ASoC: Intel: Add period size constraint on strago board
> 
>  sound/soc/intel/atom/sst-mfld-platform-pcm.c | 15 +++++++++++++++
>  sound/soc/intel/boards/cht_bsw_max98090_ti.c | 14 +++++++++++++-
>  sound/soc/intel/boards/cht_bsw_rt5645.c      | 14 +++++++++++++-
>  3 files changed, 41 insertions(+), 2 deletions(-)
> 
> -- 
> 2.7.4
>