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Mon, 24 Jan 2022 22:54:40 -0800 (PST) Date: Tue, 25 Jan 2022 14:54:32 +0800 From: Leo Yan To: Jiankang Chen Cc: Mathieu Poirier , Suzuki.Poulose@arm.com, linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org, mike.leach@linaro.org, zhangliguang@linux.alibaba.com Subject: Re: [PATCH] coresight: tmc: change device registration from misc to cdev Message-ID: <20220125065432.GA370774@leoy-ThinkPad-X240s> References: <20220124110018.68485-1-jkchen@linux.alibaba.com> <117e6569-bd2e-830a-70e3-dd26dfae26c8@linux.alibaba.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <117e6569-bd2e-830a-70e3-dd26dfae26c8@linux.alibaba.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220124_225442_313703_07B86175 X-CRM114-Status: GOOD ( 20.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgSmF5LAoKT24gVHVlLCBKYW4gMjUsIDIwMjIgYXQgMTA6MzM6NDVBTSArMDgwMCwgSmlhbmth bmcgQ2hlbiB3cm90ZToKPiBIaSBNYXRoaWV1Cj4gCj4g5ZyoIDIwMjIvMS8yNSAwNDowOCwgTWF0 aGlldSBQb2lyaWVyIOWGmemBkzoKPiA+IE9uIE1vbiwgMjQgSmFuIDIwMjIgYXQgMDQ6MDAsIEph eSBDaGVuIDxqa2NoZW5AbGludXguYWxpYmFiYS5jb20+IHdyb3RlOgo+ID4gPiBDdXJyZW50bHks IHRoZXJlIGFyZSAxMzAgZXRyIGFuZCBldGYgb24gb3VyIG1hY2hpbmUsCj4gPiA+IGJ1dCB0aGUg Y3VycmVudCBjb3Jlc2lnaHQgdG1jIGRyaXZlciB1c2VzIG1pc2NfcmVnaXN0ZXIKPiA+ID4gdG8g cmVnaXN0ZXIgdGhlIGRldmljZSwgd2hpY2ggbGVhZHMgdG8gdGhlIGVycm9yIHRoYXQKPiA+ID4g dGhlIGRldmljZSBudW1iZXIgaXMgbm90IGVub3VnaC4KPiA+ID4gCj4gPiA+IGNvcmVzaWdodC10 bWM6IHByb2JlIG9mIHh4eHh4IGZhaWxlZCB3aXRoIGVycm9yIC0xNgo+ID4gPiAKPiA+ID4gVGhp cyBwYXRjaCBjaGFuZ2VzIHRoZSBkZXZpY2UgcmVnaXN0cmF0aW9uIG1ldGhvZAo+ID4gPiB0byBj ZGV2J3MgZHluYW1pYyByZWdpc3RyYXRpb24gbWV0aG9kIHRvIHNvbHZlIHRoZQo+ID4gPiBwcm9i bGVtIG9mIGluc3VmZmljaWVudCBkZXZpY2UgbnVtYmVycy4KPiA+IFRoaXMgcGF0Y2ggaXMgc3Rp bGwgbm90IGxhYmVsbGVkIHByb3Blcmx5IGFuZCBhcyBzdWNoIGJlaW5nIGRyb3BwZWQuCj4gCj4g SGVsbG8sIGFib3V0IHRoZSBsYWJlbCBvZiB0aGlzIHBhdGNoLCB3aGF0IGtpbmQgb2YgcGF0Y2gg c2hvdWxkIEkgYWRkPwoKWW91IGNvdWxkIHVzZSAiZ2l0IGZvcm1hdCIgY29tbWFuZCB3aXRoIG9w dGlvbiAiLXYiIHRvIGFkZCB0aGUgdmVyc2lvbgpudW1iZXIsIGUuZy4gaWYgeW91IGFyZSBjb21t aXR0aW5nIHBhdGNoIHZlcnNpb24gNCwgc28geW91IGNhbiBnZW5lcmF0ZQpwYXRjaCBsaWtlOgoK ICAkIGdpdCBmb3JtYXQtcGF0Y2ggSEVBRH4xIC12NAoKT3IgaWYgeW91IHdhbnQgdG8gZ2VuZXJh dGUgcGF0Y2ggZm9yIGEgc3BlY2lmaWMgY29tbWl0OgoKICAkIGdpdCBmb3JtYXQtcGF0Y2ggLTEg cGF0Y2hfY29tbWl0IC12NAoKRXZlcnkgdGltZSB3aGVuIHlvdSBnZW5lcmF0ZSBhIG5ldyB2ZXJz aW9uJ3MgcGF0Y2gsIHlvdSBjb3VsZAppbmNyZW1lbnQgdGhlIHZlcnNpb24gbnVtYmVyIHdpdGgg b3B0aW9uICItdjQiLCAiLXY1IiwgYW5kIHNvIG9uLgoKUC5zLiBJIHN0cm9uZ2x5IHN1Z2dlc3Qg TWFyYyBaeW5naWVyJ3MgZ3JlYXQgdGFsayBmb3IgaG93IHRvIHVwc3RyZWFtCmtlcm5lbCBwYXRj aCBpbiBhIGdvb2Qgd2F5OgpodHRwczovL2V2ZW50czE5LmxpbnV4Zm91bmRhdGlvbi5vcmcvd3At Y29udGVudC91cGxvYWRzLzIwMTcvMTIvR2V0dGluZy1Zb3VyLVBhdGNoZXMtaW4tTWFpbmxpbmUt TGludXgtV2hhdC1Ob3QtVG8tRG8tYW5kLWEtRmV3LVRoaW5ncy1Zb3UtQ291bGQtVHJ5LUluc3Rl YWQtTWFyYy1aeW5naWVyLUFSTS5wZGYKClRoYW5rcywKTGVvCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlz dApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJh ZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==