From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH] i2c: busses: i2c-bcm2835: S-Register clear reserved bits Date: Wed, 17 Jun 2015 14:10:15 +0200 Message-ID: <20150617121015.GA13393@katana> References: <1434469259-6474-1-git-send-email-linux_wi@tinag.ch> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="IS0zKkzwUGydFO0o" Return-path: Content-Disposition: inline In-Reply-To: <1434469259-6474-1-git-send-email-linux_wi-ADq4ffItWIY@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Silvan Wicki Cc: swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-rpi-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: linux-i2c@vger.kernel.org --IS0zKkzwUGydFO0o Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jun 16, 2015 at 05:40:59PM +0200, Silvan Wicki wrote: > The Datasheet mentions on page 31 that the bits 10-31 must be read as > don't care and written as 0. > https://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Periph= erals.pdf >=20 > We cannot guarantee that we reed bits 10-31 as always 0 (becuase the > datasheet says read as don't care). We clear the bits with a bitmask to > prevent writing back unknown data at the reserved bits. >=20 > Signed-off-by: Silvan Wicki Applied to for-next, thanks! If possible, use a spell checker on your commit message. --IS0zKkzwUGydFO0o Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVgWOnAAoJEBQN5MwUoCm2HYkP/2qsOdPOpMQQ6fOsHDSFSk5b Or0AlAfHsdC/p44O/BnWAD+vw3olE6O/tC6v/Uhjhx6RrA0hhYjjH12PPM8WFiP/ 50rlH727+lXFvTWexwWneRzPXzOtiAxfQZFYaOsDnym4daUF80pCl0//1EL+CsZB E7Fzd2Kqjz4MNJ88Da/Uw00AHQr5glspz6ZwQMqvTe7hA5qLTK/IMQmH6PUweKX3 tGtfrIigGxwxrwtUb3nY3MfnFwmWANfc+BuvNk5QFdqfA6Aw2aMP9/FnUJBLzWpy NhYLxEyf8IojWseXbqKg1ij5T/Xw5IQlqmKYXdq7bCHE2KnozSKBHAbkCaNC4RE7 c6NYwIvbp8Rhf59q+6/vf9KCjtTnhZ8HT/b8SGjZwAjYThsWxwF2ap83LKikCk1U PPIoW5Mx5sH1Ucn53MIdWT/0JTgz7gvEk2f18piZgHHIKcHgQnhhdTXxwd/ztLUz /+/PPBXt9TiTQqBNtuqjMbT8p8HkU0irrBT1UvBDTpfpIs1B9WWtZ7jUGW8TR02p mpKuMXUdW9HSrWrDuCOg8wZS80Lr0YDFFiyK3+5a3YjcTX67Hutd017rKwLUWqyR lTq3LdasWb98W4vHdT8VGcFfrCTd5q6nFeYwOoriuazgLx8MKMeEIatj7/8TT91s AMLlVwVzrkLKa1zpAmPq =03qJ -----END PGP SIGNATURE----- --IS0zKkzwUGydFO0o--