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Date:   Tue, 29 Dec 2020 11:40:54 +0000
From:   Charles Keepax <ckeepax@opensource.cirrus.com>
To:     Hans de Goede <hdegoede@redhat.com>
CC:     Lee Jones <lee.jones@linaro.org>,
        MyungJoo Ham <myungjoo.ham@samsung.com>,
        Chanwoo Choi <cw00.choi@samsung.com>,
        Cezary Rojewski <cezary.rojewski@intel.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
        Liam Girdwood <liam.r.girdwood@linux.intel.com>,
        Jie Yang <yang.jie@linux.intel.com>,
        Mark Brown <broonie@kernel.org>,
        <patches@opensource.cirrus.com>, <linux-kernel@vger.kernel.org>,
        <alsa-devel@alsa-project.org>
Subject: Re: [PATCH 02/14] mfd: arizona: Add MODULE_SOFTDEP("pre:
 arizona_ldo1")
Message-ID: <20201229114054.GH9673@ediswmail.ad.cirrus.com>
References: <20201227211232.117801-1-hdegoede@redhat.com>
 <20201227211232.117801-3-hdegoede@redhat.com>
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On Sun, Dec 27, 2020 at 10:12:20PM +0100, Hans de Goede wrote:
> The (shared) probing code of the arizona-i2c and arizona-spi modules
> takes the following steps during init:
> 
> 1. Call mfd_add_devices() for a set of early child-devices, this
> includes the arizona_ldo1 device which provides one of the
> core-regulators.
> 
> 2. Bulk enable the core-regulators.
> 
> 3. Read the device id.
> 
> 4. Call mfd_add_devices() for the other child-devices.
> 
> This sequence depends on 1. leading to not only the child-device
> being created, but also the driver for the child-device binding
> to it and registering its regulator.
> 
> This requires the arizona_ldo1 driver to be loaded before the
> shared probing code runs. Add a doftdep for this to both modules to
> ensure that this requirement is met.
> 
> Note this mirrors the existing MODULE_SOFTDEP("pre: wm8994_regulator")
> in the wm8994 code, which has a similar init sequence.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>

Thanks,
Charles