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Wed, 7 Apr 2021 06:03:30 +0000 From: Parshuram Raju Thombare To: Rob Herring CC: "robert.foss@linaro.org" , "laurent.pinchart@ideasonboard.com" , "airlied@linux.ie" , "daniel@ffwll.ch" , "dri-devel@lists.freedesktop.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "a.hajda@samsung.com" , "narmstrong@baylibre.com" , "nikhil.nd@ti.com" , "kishon@ti.com" , Swapnil Kashinath Jakhade , Milind Parab Subject: RE: [PATCH v5 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP Thread-Topic: [PATCH v5 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP Thread-Index: AQHXHKOi/86dAQ9N3U2czyHmDrT9E6qSMz8AgBZ3t0A= Date: Wed, 7 Apr 2021 06:03:29 +0000 Message-ID: References: <1616146664-6941-1-git-send-email-pthombar@cadence.com> <1616146709-7227-1-git-send-email-pthombar@cadence.com> <20210323224546.GA1485576@robh.at.kernel.org> In-Reply-To: <20210323224546.GA1485576@robh.at.kernel.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-dg-ref: PG1ldGE+PGF0IG5tPSJib2R5LnR4dCIgcD0iYzpcdXNlcnNccHRob21iYXJcYXBwZGF0YVxyb2FtaW5nXDA5ZDg0OWI2LTMyZDMtNGE0MC04NWVlLTZiODRiYTI5ZTM1Ylxtc2dzXG1zZy1mNmRkMzhjNC05NzY2LTExZWItODYzMC0xMDY1MzBlZjIyZjVcYW1lLXRlc3RcZjZkZDM4YzUtOTc2Ni0xMWViLTg2MzAtMTA2NTMwZWYyMmY1Ym9keS50eHQiIHN6PSI4MDYiIHQ9IjEzMjYyMjQ5MDA2MDA3MjA3NyIgaD0iUEt5YlNOU1ZtVTlWbjRHdWZQUmZhVGQySlVBPSIgaWQ9IiIgYmw9IjAiIGJvPSIxIi8+PC9tZXRhPg== x-dg-rorf: true authentication-results: kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: cadence.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MWHPR07MB2768.namprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9bda3544-3356-4aa5-93ac-08d8f98ade24 X-MS-Exchange-CrossTenant-originalarrivaltime: 07 Apr 2021 06:03:29.5139 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: lQT87Av9a6LonauQ5xVEZckuNUtcx0/9oT0KMzvVe6LudHMR9lLerjRyYeWXbcCY0ZQ2TchVPb+mMrN+2diEEBQQ6399TnP56Qah7udBXH4= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR07MB4012 X-Proofpoint-GUID: mRQJscMliHonHEV1FSiNHdahvzoLtwsw X-Proofpoint-ORIG-GUID: mRQJscMliHonHEV1FSiNHdahvzoLtwsw X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-04-07_03:2021-04-06,2021-04-07 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 phishscore=0 clxscore=1015 adultscore=0 impostorscore=0 spamscore=0 suspectscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 lowpriorityscore=0 mlxscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000 definitions=main-2104070044 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Rob, Thanks for your comment and sorry for late response. >> - minItems: 1 >> - maxItems: 2 >> + minItems: 2 >> + maxItems: 3 > >1 entry was valid and now it is not? That's not a compatible change and >needs an explanation at a minimum. Yes, as the driver returns error in the absence of SAPB port address range,= this may break the driver on platform without SAPB port. This IP needs SAPB port to support HDCP feature using embedded HDCP crypto module. So, to maintain backward compatibility I will modify the driver and allow i= t to proceed without HDCP feature, instead of returning an error, in case of = no SAPB port. 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Wed, 7 Apr 2021 06:03:30 +0000 From: Parshuram Raju Thombare To: Rob Herring Subject: RE: [PATCH v5 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP Thread-Topic: [PATCH v5 1/2] dt-bindings: drm/bridge: MHDP8546 bridge binding changes for HDCP Thread-Index: AQHXHKOi/86dAQ9N3U2czyHmDrT9E6qSMz8AgBZ3t0A= Date: Wed, 7 Apr 2021 06:03:29 +0000 Message-ID: References: <1616146664-6941-1-git-send-email-pthombar@cadence.com> <1616146709-7227-1-git-send-email-pthombar@cadence.com> <20210323224546.GA1485576@robh.at.kernel.org> In-Reply-To: <20210323224546.GA1485576@robh.at.kernel.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-dg-ref: PG1ldGE+PGF0IG5tPSJib2R5LnR4dCIgcD0iYzpcdXNlcnNccHRob21iYXJcYXBwZGF0YVxyb2FtaW5nXDA5ZDg0OWI2LTMyZDMtNGE0MC04NWVlLTZiODRiYTI5ZTM1Ylxtc2dzXG1zZy1mNmRkMzhjNC05NzY2LTExZWItODYzMC0xMDY1MzBlZjIyZjVcYW1lLXRlc3RcZjZkZDM4YzUtOTc2Ni0xMWViLTg2MzAtMTA2NTMwZWYyMmY1Ym9keS50eHQiIHN6PSI4MDYiIHQ9IjEzMjYyMjQ5MDA2MDA3MjA3NyIgaD0iUEt5YlNOU1ZtVTlWbjRHdWZQUmZhVGQySlVBPSIgaWQ9IiIgYmw9IjAiIGJvPSIxIi8+PC9tZXRhPg== x-dg-rorf: true authentication-results: kernel.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi Rob, Thanks for your comment and sorry for late response. >> - minItems: 1 >> - maxItems: 2 >> + minItems: 2 >> + maxItems: 3 > >1 entry was valid and now it is not? That's not a compatible change and >needs an explanation at a minimum. Yes, as the driver returns error in the absence of SAPB port address range, this may break the driver on platform without SAPB port. This IP needs SAPB port to support HDCP feature using embedded HDCP crypto module. So, to maintain backward compatibility I will modify the driver and allow it to proceed without HDCP feature, instead of returning an error, in case of no SAPB port. Regards, Parshuram Thombare _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel