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b=mAzGE8Sxzwa+hd6UnabLA67frA2HkwLL9AGcPZHjqulitJZ0lvC5YoZ2mrXJWBAYA eewT5JoFftO/BP48s55eGD+EMBpD90YMalW4fsivlKdSHm3oYjGb0R8LUA4H6wtFep 2ROIJIR/GkVhJd/5x2JMrbrxgyEj40Xf6ThvwCxpJOJUXxF3LVES804AusowM/BRTT 1G4CvzPWjzs56wB62rprPksoFaPGeo7YWrDkA73LFOGc9OF8W4ZRU3DNrpQrZy68GD DjrE9cEFVo825iZke3Cn1xpAaW+upWguw9JFaethSv52nN4Ia3H4Z61gxfaVSexbLe MB4i7GjTwUbOA== Date: Thu, 20 Jul 2023 21:57:58 +0530 From: Manivannan Sadhasivam To: Bjorn Helgaas Cc: Frank Li , Manivannan Sadhasivam , imx@lists.linux.dev, bhelgaas@google.com, devicetree@vger.kernel.org, gustavo.pimentel@synopsys.com, kw@linux.com, leoyang.li@nxp.com, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, lorenzo.pieralisi@arm.com, minghuan.lian@nxp.com, mingkai.hu@nxp.com, robh+dt@kernel.org, roy.zang@nxp.com, shawnguo@kernel.org, zhiqiang.hou@nxp.com Subject: Re: [PATCH v3 1/2] PCI: dwc: Implement general suspend/resume functionality for L2/L3 transitions Message-ID: <20230720162758.GD48270@thinkpad> References: <20230720160738.GC48270@thinkpad> <20230720162027.GA527307@bhelgaas> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230720162027.GA527307@bhelgaas> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230720_092817_235973_FDF0BE9E X-CRM114-Status: GOOD ( 30.48 ) 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 T24gVGh1LCBKdWwgMjAsIDIwMjMgYXQgMTE6MjA6MjdBTSAtMDUwMCwgQmpvcm4gSGVsZ2FhcyB3 cm90ZToKPiBPbiBUaHUsIEp1bCAyMCwgMjAyMyBhdCAwOTozNzozOFBNICswNTMwLCBNYW5pdmFu bmFuIFNhZGhhc2l2YW0gd3JvdGU6Cj4gPiBPbiBUaHUsIEp1bCAyMCwgMjAyMyBhdCAxMDozNzoz NkFNIC0wNDAwLCBGcmFuayBMaSB3cm90ZToKPiA+ID4gT24gVGh1LCBKdWwgMjAsIDIwMjMgYXQg MDc6NTU6MDlQTSArMDUzMCwgTWFuaXZhbm5hbiBTYWRoYXNpdmFtIHdyb3RlOgo+ID4gPiA+IE9u IFR1ZSwgSnVsIDE4LCAyMDIzIGF0IDAzOjM0OjI2UE0gKzA1MzAsIE1hbml2YW5uYW4gU2FkaGFz aXZhbSB3cm90ZToKPiA+ID4gPiA+IE9uIE1vbiwgSnVsIDE3LCAyMDIzIGF0IDAyOjM2OjE5UE0g LTA0MDAsIEZyYW5rIExpIHdyb3RlOgo+ID4gPiA+ID4gPiBPbiBNb24sIEp1bCAxNywgMjAyMyBh dCAxMDoxNToyNlBNICswNTMwLCBNYW5pdmFubmFuIFNhZGhhc2l2YW0gd3JvdGU6Cj4gPiA+ID4g PiA+ID4gT24gV2VkLCBBcHIgMTksIDIwMjMgYXQgMTI6NDE6MTdQTSAtMDQwMCwgRnJhbmsgTGkg d3JvdGU6Cj4gPiA+ID4gPiA+ID4gPiBJbnRyb2R1Y2VkIGhlbHBlciBmdW5jdGlvbiBkd19wY2ll X2dldF9sdHNzbSB0byByZXRyaWV2ZSBTTUxIX0xUU1NfU1RBVEUuCj4gPiA+ID4gPiA+ID4gPiBB ZGRlZCBBUEkgcG1lX3R1cm5fb2ZmIGFuZCBleGl0X2Zyb21fbDIgZm9yIG1hbmFnaW5nIEwyL0wz IHN0YXRlIHRyYW5zaXRpb25zLgo+ID4gPiA+ID4gPiA+ID4gCj4gPiA+ID4gPiA+ID4gPiBUeXBp Y2FsIEwyIGVudHJ5IHdvcmtmbG93Ogo+ID4gPiA+ID4gPiA+ID4gCj4gPiA+ID4gPiA+ID4gPiAx LiBUcmFuc21pdCBQTUUgdHVybiBvZmYgc2lnbmFsIHRvIFBDSSBkZXZpY2VzLgo+ID4gPiA+ID4g PiA+ID4gMi4gQXdhaXQgbGluayBlbnRlcmluZyBMMl9JRExFIHN0YXRlLgo+ID4gPiA+ID4gPiA+ IAo+ID4gPiA+ID4gPiA+IEFGQUlLLCB0eXBpY2FsIHdvcmtmbG93IGlzIHRvIHdhaXQgZm9yIFBN RV9Ub19BY2suCj4gPiA+ID4gPiA+IAo+ID4gPiA+ID4gPiAxIEFscmVhZHkgd2FpdCBmb3IgUE1F X3RvX0FDSywgIDIsIGp1c3Qgd2FpdCBmb3IgbGluayBhY3R1YWwgZW50ZXIgTDIuCj4gPiA+ID4g PiA+IEkgdGhpbmsgUENJIFJDIG5lZWRzIHNvbWUgdGltZSB0byBzZXQgbGluayBlbnRlciBMMiBh ZnRlciBnZXQgQUNLIGZyb20KPiA+ID4gPiA+ID4gUE1FLgo+ID4gPiA+IAo+ID4gPiA+IE9uZSBt b3JlIGNvbW1lbnQuIElmIHlvdSB0cmFuc2l0aW9uIHRoZSBkZXZpY2UgdG8gTDIvTDMsIHRoZW4g aXQKPiA+ID4gPiBjYW4gbG9zZSBwb3dlciBpZiBWYXV4IHdhcyBub3QgcHJvdmlkZWQuIEluIHRo YXQgY2FzZSwgY2FuIGFsbAo+ID4gPiA+IHRoZSBkZXZpY2VzIHdvcmsgYWZ0ZXIgcmVzdW1lPyAg TW9zdCBub3RhYmx5IE5WTWU/Cj4gPiA+IAo+ID4gPiBJIGhhdmUgbm90IGhhcmR3YXJlIHRvIGRv IHN1Y2ggdGVzdCwgTlZNZSBkcml2ZXIgd2lsbCByZWluaXQKPiA+ID4gZXZlcnl0aGluZyBhZnRl ciByZXN1bWUgaWYgbm8gTDEuMVxMMS4yIHN1cHBvcnQuIElmIHRoZXJlIGFyZQo+ID4gPiBMMS4x XEwxLjIsIE5WTUUgZXhwZWN0IGl0IGxlYXZlIGF0IEwxLjIgYXQgc3VzcGVuZCB0byBnZXQgYmV0 dGVyCj4gPiA+IHJlc3VtZSBsYXRlbmN5Lgo+ID4gCj4gPiBUbyBiZSBwcmVjaXNlLCBOVk1lIGRy aXZlciB3aWxsIHNodXRkb3duIHRoZSBkZXZpY2UgaWYgdGhlcmUgaXMgbm8KPiA+IEFTUE0gc3Vw cG9ydCBhbmQga2VlcCBpdCBpbiBsb3cgcG93ZXIgbW9kZSBvdGhlcndpc2UgKHRoZXJlIGFyZQo+ ID4gb3RoZXIgY2FzZXMgYXMgd2VsbCBidXQgd2UgZG8gbm90IG5lZWQgdG8gd29ycnkpLgo+ID4g Cj4gPiBCdXQgaGVyZSB5b3UgYXJlIG5vdCBjaGVja2luZyBmb3IgQVNQTSBzdGF0ZSBpbiB0aGUg c3VzcGVuZCBwYXRoLAo+ID4gYW5kIGp1c3QgZm9yY2luZyB0aGUgbGluayB0byBiZSBpbiBMMi9M MyAodGhlcmVieSBEM0NvbGQpIGV2ZW4KPiA+IHRob3VnaCBOVk1lIGRyaXZlciBtYXkgZXhwZWN0 IGl0IHRvIGJlIGluIGxvdyBwb3dlciBzdGF0ZSBsaWtlCj4gPiBBU1BNL0FQU1QuCj4gPiAKPiA+ IFNvIHlvdSBzaG91bGQgb25seSBwdXQgdGhlIGxpbmsgdG8gTDIvTDMgaWYgdGhlcmUgaXMgbm8g QVNQTQo+ID4gc3VwcG9ydC4gT3RoZXJ3aXNlLCB5b3UnbGwgZW5kaW5nIHVwIHdpdGggYnVnIHJl cG9ydHMgd2hlbiB1c2Vycwo+ID4gY29ubmVjdCBOVk1lIHRvIGl0Lgo+IAo+IENhbiB5b3UgcG9p bnQgbWUgdG8gdGhlIE5WTWUgY29kZSB0aGF0IHNodXRzIGRvd24gdGhlIGRldmljZSBpZgo+IHRo ZXJlJ3Mgbm8gQVNQTSBzdXBwb3J0PyAgVGhhdCBzb3VuZHMgaW50ZXJlc3RpbmcgYW5kIG9mIGlu dGVyZXN0IHRvCj4gb3RoZXIgZHJpdmVycyB0aGF0IHdhbnQgdG8gZG8gc3VzcGVuZC4KPiAKCmRy aXZlcnMvbnZtZS9ob3N0L3BjaS5jICMzMTg1CgpOb3RlIHRoYXQsIHdpdGggQUNQSSBiYXNlZCBz eXN0ZW1zIGFuZCBmb3IgYSBmZXcgU1NEcyB0aGUgYmVoYXZpb3IgbWF5IGNoYW5nZQooY2hlY2sg TlZNRV9RVUlSS19TSU1QTEVfU1VTUEVORCBmbGFnKS4KCi0gTWFuaQoKPiBCam9ybgoKLS0gCuCu ruCuo+Cuv+CuteCuo+CvjeCuo+CuqeCvjSDgrprgrqTgrr7grprgrr/grrXgrq7gr40KCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJu ZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK