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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB5413.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4ffc9f5f-7d72-4258-fb8d-08d86cbfc705 X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Oct 2020 01:57:00.5717 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: 0UnVgVCXoVdaJe+62QQYjbklA8r57LwLb2tKvpsxcW981SjHZg50IyaPYmSjMo+o7tOKyyF96lN/jR5zIwf6Uw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR04MB4965 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "devicetree@vger.kernel.org" , Biwen Li , Shawn Guo , "linux-kernel@vger.kernel.org" , Leo Li , Ran Wang , "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hi Rob, On Tuesday, September 29, 2020 4:23 PM, Ran Wang wrote: >=20 > From: Biwen Li >=20 > The 'fsl,ippdexpcr1-alt-reg' property is used to handle an errata A-00864= 6 on > LS1021A. >=20 > Signed-off-by: Biwen Li > Signed-off-by: Ran Wang > --- > Change in v3: > - Simplize related proterty definition and rename it. Could you please comment for this version? Thanks in advance. Regards, Ran > Change in v2: > - None >=20 > Documentation/devicetree/bindings/soc/fsl/rcpm.txt | 12 ++++++++++++ > 1 file changed, 12 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > index 5a33619..62a22fc 100644 > --- a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt > @@ -34,6 +34,9 @@ Chassis Version Example Chips > Optional properties: > - little-endian : RCPM register block is Little Endian. Without it RCPM > will be Big Endian (default case). > + - fsl,ippdexpcr1-alt-reg : The property is trying to workaround a > + hardware issue (found on SoC LS1021A only), if pressent, RCPM driver > + will use SCFG_SPARECR8 as a shadow register for RCPM_IPPDEXPCR1. >=20 > Example: > The RCPM node for T4240: > @@ -43,6 +46,15 @@ The RCPM node for T4240: > #fsl,rcpm-wakeup-cells =3D <2>; > }; >=20 > +The RCPM node for LS1021A: > + rcpm: rcpm@1ee2140 { > + compatible =3D "fsl,ls1021a-rcpm", "fsl,qoriq-rcpm-2.1+"; > + reg =3D <0x0 0x1ee2140 0x0 0x8>; > + #fsl,rcpm-wakeup-cells =3D <2>; > + fsl,ippdexpcr1-alt-reg; > + }; > + > + > * Freescale RCPM Wakeup Source Device Tree Bindings > ------------------------------------------- > Required fsl,rcpm-wakeup property should be added to a device node if th= e > device > -- > 2.7.4