From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3C215C433EF for ; Thu, 30 Dec 2021 10:55:14 +0000 (UTC) Received: from jabberwock.ucw.cz (jabberwock.ucw.cz [46.255.230.98]) by mx.groups.io with SMTP id smtpd.web09.62981.1640861712752965058 for ; Thu, 30 Dec 2021 02:55:13 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=neutral (domain: denx.de, ip: 46.255.230.98, mailfrom: pavel@denx.de) Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id 627931C0B77; Thu, 30 Dec 2021 11:55:08 +0100 (CET) Date: Thu, 30 Dec 2021 11:55:07 +0100 From: Pavel Machek To: Lad Prabhakar Cc: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek , Biju Das Subject: Re: [PATCH 5.10.y-cip 04/31] ASoC: dt-bindings: renesas,rz-ssi: Update slave dma channel configuration parameter Message-ID: <20211230105507.GA9799@amd> References: <20211229101530.22783-1-prabhakar.mahadev-lad.rj@bp.renesas.com> <20211229101530.22783-5-prabhakar.mahadev-lad.rj@bp.renesas.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k+w/mQv8wyuph6w0" Content-Disposition: inline In-Reply-To: <20211229101530.22783-5-prabhakar.mahadev-lad.rj@bp.renesas.com> User-Agent: Mutt/1.5.23 (2014-03-12) List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 30 Dec 2021 10:55:14 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/7311 --k+w/mQv8wyuph6w0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > From: Biju Das >=20 > commit bed0b1c1e88a27b76c74584128cadebc6fa58622 upstream. >=20 > The DMAC on RZ/G2L has specific slave channel configuration > parameters for SSI. > This patch updates the dmas description and example node to include > the encoded slave channel configuration. > +++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml > @@ -48,6 +48,24 @@ properties: > dmas: > minItems: 1 > maxItems: 2 > + description: > + The first cell represents a phandle to dmac > + The second cell specifies the encoded MID/RID values of the SSI po= rt > + connected to the DMA client and the slave channel configuration > + parameters. > + bits[0:9] - Specifies MID/RID value of a SSI channel as below > + MID/RID value of SSI rx0 =3D 0x256 > + MID/RID value of SSI tx0 =3D 0x255 > + MID/RID value of SSI rx1 =3D 0x25a > + MID/RID value of SSI tx1 =3D 0x259 > + MID/RID value of SSI rt2 =3D 0x25f > + MID/RID value of SSI rx3 =3D 0x262 > + MID/RID value of SSI tx3 =3D 0x261 > + bit[10] - HIEN =3D 1, Detects a request in response to the ris= ing edge > + of the signal > + bit[11] - LVL =3D 0, Detects based on the edge > + bits[12:14] - AM =3D 2, Bus cycle mode > + bit[15] - TM =3D 0, Single transfer mode I wish there was better solution to this. Device tree sources are quite human-readable, this really is not. Best regards, Pavel --=20 DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany --k+w/mQv8wyuph6w0 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAmHNkAsACgkQMOfwapXb+vLHtwCfZm+WF3E7OZ3g4L9vS4ZU41VY poIAn387pzUenRjHjJ2dX3e6kjllerF6 =Hhy5 -----END PGP SIGNATURE----- --k+w/mQv8wyuph6w0--