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Mon, 10 Dec 2018 15:30:31 +0100 (CET) Subject: Re: [PATCH V2 2/2] iio: accell: mma8452: add optional vdd/vddio regulator operation support To: Anson Huang , "jic23@kernel.org" , "knaack.h@gmx.de" , "lars@metafoo.de" , "pmeerw@pmeerw.net" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "rtresidd@electromag.com.au" , "gustavo@embeddedor.com" , "gregkh@linuxfoundation.org" , Leonard Crestez , "linux-iio@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "festevam@gmail.com" Cc: dl-linux-imx References: <1544426368-16415-1-git-send-email-Anson.Huang@nxp.com> <1544426368-16415-2-git-send-email-Anson.Huang@nxp.com> From: Martin Kepplinger Openpgp: preference=signencrypt Autocrypt: addr=martink@posteo.de; keydata= xsFNBFULfZABEADRxJqDOYAHfrp1w8Egcv88qoru37k1x0Ugy8S6qYtKLAAt7boZW+q5gPv3 Sj2KjfkWA7gotXpASN21OIfE/puKGwhDLAySY1DGNMQ0gIVakUO0ji5GJPjeB9JlmN5hbA87 Si9k3yKQQfv7Cf9Lr1iZaV4A4yjLP/JQMImaCVdC5KyqJ98Luwci1GbsLIGX3EEjfg1+MceO dnJTKZpBAKd1J7S2Ib3dRwvALdiD7zqMGqkw5xrtwasatS7pc6o/BFgA9GxbeIzKmvW/hc3Q amS/sB12BojyzdUJ3TnIoAqvwKTGcv5VYo2Z+3FV+/MJVXPo8cj2vmfxQx1WG4n6X0pK4X8A BkCKw2N/evMZblNqAzzGVtoJvqQYkzQ20Fm+d3wFl6lS1db4MB+kU13G8kEIE22Q3i6kx4NA N49FLlPeDabGfJUyDaZp5pmKdcd7/FIGH/HjShjx7g+LKSwWNMkDygr4WARAP4h8zYDZuNqe ofPvMLqJxHeexBPIGF/+OwMyTvM7otP5ODuFmq6OqjNPf1irJmkiFv3yEa+Ip0vZzwl4XvrZ U0IKjSy2rbRLg22NsJT0XVZJbutIXYSvIHGqSxzzfiOOLnRjR++fbeEoVlRJ4NZHDKCh3pJv LNd+j03jXr4Rm058YLgO7164yr7FhMZniBJw6z648rk8/8gGPQARAQABzSVNYXJ0aW4gS2Vw cGxpbmdlciA8bWFydGlua0Bwb3N0ZW8uZGU+wsF6BBMBAgAkAhsDAh4BAheABQsJCAcDBRUK CQgLBRYCAwEABQJVC4DBAhkBAAoJEFADmN9as4fTpYwQAIqwZ2arvCsfwiZqr/KyJ4ewhn2/ 7JVR/kvx5G6nfPI55XtNDmd2Lt7xNvY5LbLwGp2c3JMD1rZ2FhbWXC39SA0yxeE4U0NTlxDg RGx20k85pZTFvxyPfz9c7dAFTLMajpzLvpjBjEaqVm6KnS/UBBaGHOu0999siD1EDaSBWUiO HPMXNYkcFt96p55LYNAgzSsd+zTjknxCnmzUMiDKzjFn6LdqdlyPyMj6IXpeiAFHV43SAGb6 8miE+S61pq9pTapt+E5qf3zfuKATK0dfZkkMFaC+Vmv6DvcpR7G1ilpmjkR6o/mDM6dtm21T 5jpYrEmb7hgigFl9Pg01mJLwSGm1GYf45aKQH/VZff+sYsDDNQUHwabG9DVV/edSRJGzCu3R W/xqeF3Ll44Bhaa9LaVQuN7Yuqixhxm8flJNcfnknYd9TBQYLIZLcUyN3bbaABbCv6xkHaB6 ZUUQPhpVGoLANrLtTSEtYBYzktSmeARLTtVt5wJ0Q8gQ6h5a0VC6zHv37cRUYqsEwwRwbG+h aBs907W8hH4etQtbbXBbbbXnOOl/QnpShjyWYe02A/f/QWpgZD5SPsB6RVQdWnP8ZN7OngzE RACA2ftyBnp/0ESKMDLYJDRGm3oM01hZSZHnFBt/aggx3FOM39bmu565xg21hO7I7s9xkvbZ Czz2iSRTzsFNBFULfZABEADFNrM9n2N+nq4L4FKIi2PCSsWWU0RUqm26b3wkmi9anWSJsz6m GXqJWj7AoV6w2ybnry+IzYIDN7NWUyvsXS7o1A0rqm7Tzhb3IdJQpE4UWvzdSKfq3ThTzy1w KIFgtDkb5OtW4Zf/mpjV6tVYjjJx2SpDNvwA9swWtb+xFvvzV/zAZdaEOzoF3g81goe/sLSv xdijvs95KoZJX/nmWlKyagTb7NHcxblNWhoTzdnGF+qC1MhYx/zyaD/bQQiFgJEbSI6aNfK1 Z/77Eub3Gkx4qcp9ZdDFFt+8qDf4rMXfQDSE7dgHIoQ1ifC1IHPyh3fY3uicbn75rPF+6Fhk bkyRo14k8so9CnIYxzY+ienQGEJlO/EhsjzVl5fpML45lt5b7TeIacLsSjjIn3dBSTNYU6EY YTHQUeP6oGQNAuxEQRjCx3Gqqv2TUpQPUYVUOXSDO4qqJXhiOUmIV8eH19tMPO2vc2X+tpY0 3EDcy1f2ey06vtv4+gDiAfUZcv1hKVd18E9WeuGCm64lhyovLTaLf/3RSSKL33SeaLkLPOEF UXA2OxlNfDs1FK0is+0oJr55ZEI7N9o6oFQp+bNcQeAyXh6yqTIW7YxK9tHpyUhVqOQGZzj5 0SC/XdEn1VZbqo11DDupNsMlp+BBRuY5QwjKANGMIAvay38uICLYxaCXzQARAQABwsFfBBgB AgAJBQJVC32QAhsMAAoJEFADmN9as4fTBJkQAKl9A9gUvgiLgilK6OoR9vX+cv4yL7c0uubw eneL+ZWAytTAF3jHT6cPFzv4rD8iJc1yhAFDc0LW+yywnoP7Tok6cYlYH1DCjIQsZ1Du1Jad rjTmvAPFyzKc2dcNPR3f1DAU3adcLLKz7v4+uLmBPI4HIn4TnYXbttfb0vTmJVJFERV7XMsu NiQVDgsM1K1Sn9xqYPoU59v725VzOwyhNnV2jZC2MkyVGWFKEbPcZhTDnaFpYp83e2y+sgeN l/YXkBjLnM4SCt/w7eObYsM2J2KfzfT5QdtqglWJsJMm91tWqn8GUDUgqnWz9jzzKVKDEMXA W5dQSUkD0aWY0cDNkFqs8QlWRgFMelG0gqnCqZRMf/IfSnN23yGK0j5EENjKdifSdTGItlQ8 B4znBEu3VdpDZANzRAlHxXAEJVJ7z7fmAQ9079CauV43mIDeo4cxbxfBcmiR3sxpLoUkoZ0W ONk8MxHhCLw9OfYubU2QMekS1oSOMqZ2u3/g6kTp9XiIq0LWRy862+rE1fOYWf3JpsdWVszB NjZPEXwiZ9m+v/VJ3NuzrLOJqw1F/FMaaZgbauYH9c7oAx1qXl7BYMV9WYiJGiJV0xK5UzpD GsOfIJ8/tbwPSs6pNZDAJata///+/Py99NtaU3bUYhyluAGZ/2UHygGkuyZnJc2mWFBWYWWi Message-ID: <0412034a-989b-1d57-a356-1fc3e87a0a91@posteo.de> Date: Mon, 10 Dec 2018 15:30:31 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <1544426368-16415-2-git-send-email-Anson.Huang@nxp.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10.12.18 08:25, Anson Huang wrote: > The accelerometer's power supply could be controlled by regulator > on some platforms, such as i.MX6Q-SABRESD board, the mma8451's > power supply is controlled by a GPIO fixed regulator, need to make > sure the regulator is enabled before any communication with mma8451, > this patch adds optional vdd/vddio regulator operation support. > > Signed-off-by: Anson Huang Acked-by: Martin Kepplinger