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User-Agent: Mutt/1.10.1 (2018-07-13) Cc: Oder Chiou , Jack Yu , "alsa-devel@alsa-project.org" , "lars@metafoo.de" , "lgirdwood@gmail.com" , Derek =?utf-8?B?W+aWueW+t+e+qV0=?= , Shuming =?utf-8?B?W+iMg+abuOmKmF0=?= , "Flove\(HsinFu\)" Subject: Re: [alsa-devel] [PATCH] ASoC: rt1011: export r0 and temperature config X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 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: , Content-Type: multipart/mixed; boundary="===============0827135793017167061==" Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" --===============0827135793017167061== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="rqzD5py0kzyFAOWN" Content-Disposition: inline --rqzD5py0kzyFAOWN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Oct 08, 2019 at 06:59:57PM +0800, Cheng-yi Chiang wrote: > The calibration data (R0 values and temperature) were measured and > written to VPD in the factory. When machine driver initializes sound > card, it reads the value from VPD and uses the exported API to set > calibration value for codec. The purpose is to protect speaker. This So the VPD is not part of the CODEC? One question would be why the CODEC driver doesn't directly read this information. --rqzD5py0kzyFAOWN Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl2cbcMACgkQJNaLcl1U h9DMhQf+NJpu4cUgUPFZdp9igSfLG3LYHaAYCJp3usKR+iAxZKonNQQ9+JloQzkD cG1NNf/xrTbPzpNsUgxTbclBQnHVGs4T/a/UgyZ/hbdW4sUVZxqNVXeY6ddx5qWI cIjR7jJXuM8xxq6A+74wD81Y6MlU5Ile19azCFqckVrilmvAu15kwtEqkT6NJNbv gDwifhEaXJcbrTVJCPglYgMGQLjC6NDcgUSAF0Jf9Oyd/We4DcIr8lorOn3qf74l YGz5cW6Oki3ScZv2y8NSowFlNjH49qq5poc7mFmWsRfY/Fpy3CgelSYKzBBZiuqk JJjh4h62oYWt0v96XH4RgYhkglRLbA== =dfnZ -----END PGP SIGNATURE----- --rqzD5py0kzyFAOWN-- --===============0827135793017167061== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel --===============0827135793017167061==--