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Wed, 8 Sep 2021 11:40:37 +0000 From: Parshuram Raju Thombare To: Pratyush Yadav CC: "broonie@kernel.org" , "lukas@wunner.de" , "robh+dt@kernel.org" , "linux-spi@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Jayshri Dajiram Pawar , Milind Parab , Konrad Kociolek , Tudor Ambarus , Vignesh Raghavendra Subject: RE: [PATCH v3 2/2] spi: cadence: add support for Cadence XSPI controller Thread-Topic: [PATCH v3 2/2] spi: cadence: add support for Cadence XSPI controller Thread-Index: AQHXny4swnY6qQT3ME+XBZJfwQyv4auSrJGAgAcSyHCAAEmQgIAAAVsw Date: Wed, 8 Sep 2021 11:40:36 +0000 Message-ID: References: <1630499755-18751-1-git-send-email-pthombar@cadence.com> <1630499858-20456-1-git-send-email-pthombar@cadence.com> <20210903185653.7vrfn4qfzvuiaiq2@ti.com> <20210908112113.smnwmayjb3jit3eg@ti.com> In-Reply-To: <20210908112113.smnwmayjb3jit3eg@ti.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-dg-ref: PG1ldGE+PGF0IG5tPSJib2R5LnR4dCIgcD0iYzpcdXNlcnNccHRob21iYXJcYXBwZGF0YVxyb2FtaW5nXDA5ZDg0OWI2LTMyZDMtNGE0MC04NWVlLTZiODRiYTI5ZTM1Ylxtc2dzXG1zZy05M2Y5YjIzYS0xMDk5LTExZWMtODYzZS0xMDY1MzBlZjIyZjVcYW1lLXRlc3RcOTNmOWIyM2ItMTA5OS0xMWVjLTg2M2UtMTA2NTMwZWYyMmY1Ym9keS50eHQiIHN6PSI0OTEiIHQ9IjEzMjc1NTc0ODM1MDcwMDcxMiIgaD0icVJSazhzWkZvRGNQK2FJZ2xkUEEyN1pUeWtnPSIgaWQ9IiIgYmw9IjAiIGJvPSIxIi8+PC9tZXRhPg== x-dg-rorf: true authentication-results: ti.com; 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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: CY4PR07MB2757.namprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: d41d3e5a-2019-4cba-65af-08d972bd79fe X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Sep 2021 11:40:36.9087 (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: fadsWht5XlqpcLlwnj6SXmIdkfAEUruSlt8qiIv7UhiEct+Qz6KcgT0InEExzR9m0MShVIRs3FpTRgv9PqjyIuYb88sTP271FDFhV+KlDtc= X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR07MB2650 X-Proofpoint-ORIG-GUID: uMEv3fUvwFmPAQu2WZoW0mOjtyxQGf_R X-Proofpoint-GUID: uMEv3fUvwFmPAQu2WZoW0mOjtyxQGf_R X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-09-08_05,2021-09-07_02,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 suspectscore=0 malwarescore=0 phishscore=0 mlxlogscore=521 spamscore=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 mlxscore=0 clxscore=1015 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109030001 definitions=main-2109080074 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >But it would reduce performance by a lot, no? I think we should try to >figure out how we can accomodate controllers like this before resorting >to using the slower modes.[>]=20 I am not saying that functionality will be restricted to STIG mode. But we can merge base driver with STIG mode for now and add other functionalities/modes incrementally. =20 Regards, Parshuram Thombare