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Received: from relay2-d.mail.gandi.net ([217.70.183.194]) by casper.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gqZCM-0001W8-Es for linux-arm-kernel@lists.infradead.org; Mon, 04 Feb 2019 08:01:49 +0000 X-Originating-IP: 90.88.147.226 Received: from localhost (aaubervilliers-681-1-27-226.w90-88.abo.wanadoo.fr [90.88.147.226]) (Authenticated sender: maxime.ripard@bootlin.com) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 68C7F40013; Mon, 4 Feb 2019 08:01:13 +0000 (UTC) Date: Mon, 4 Feb 2019 09:01:13 +0100 From: Maxime Ripard To: Chen-Yu Tsai Subject: Re: [PATCH 1/3] media: sun6i: Fix CSI regmap's max_register Message-ID: <20190204080113.77qxun2rhx6qnnzi@flea> References: <20190203160358.21050-1-wens@csie.org> <20190203160358.21050-2-wens@csie.org> MIME-Version: 1.0 In-Reply-To: <20190203160358.21050-2-wens@csie.org> User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190204_080146_513701_55103334 X-CRM114-Status: GOOD ( 15.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yong Deng , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Sakari Ailus , Mauro Carvalho Chehab , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: multipart/mixed; boundary="===============3624497818171584823==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============3624497818171584823== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ou2ebljt6hd6aqku" Content-Disposition: inline --ou2ebljt6hd6aqku Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Feb 04, 2019 at 12:03:56AM +0800, Chen-Yu Tsai wrote: > max_register is currently set to 0x1000. This is beyond the mapped > address range of the hardware, so attempts to dump the regmap from > debugfs would trigger a kernel exception. >=20 > Furthermore, the useful registers only occupy a small section at the > beginning of the full range. Change the value to 0x9c, the last known > register on the V3s and H3. >=20 > On the A31, the register range is extended to support additional > capture channels. Since this is not yet supported, ignore it for now. >=20 > Fixes: 5cc7522d8965 ("media: sun6i: Add support for Allwinner CSI V3s") > Cc: > Signed-off-by: Chen-Yu Tsai Acked-by: Maxime Ripard Maxime --=20 Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --ou2ebljt6hd6aqku Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRcEzekXsqa64kGDp7j7w1vZxhRxQUCXFfxNwAKCRDj7w1vZxhR xTHSAQCkh2SviUW9URUVI4sWGCc2D1O80N9rKqkileBHg8OStgEAlQWQdQ3QI6TY k5ICq4fv6va4eBEzdV9qTsp8C/zuigQ= =NRUp -----END PGP SIGNATURE----- --ou2ebljt6hd6aqku-- --===============3624497818171584823== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============3624497818171584823==--