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Fri, 22 May 2020 15:45:58 +0800 (GMT+08:00) X-Originating-IP: [222.205.77.158] Date: Fri, 22 May 2020 15:45:58 +0800 (GMT+08:00) X-CM-HeaderCharset: UTF-8 From: dinghao.liu@zju.edu.cn To: "Andy Shevchenko" Cc: "Kangjie Lu" , "Laxman Dewangan" , "Mark Brown" , "Thierry Reding" , "Jonathan Hunter" , linux-spi , linux-tegra@vger.kernel.org, "Linux Kernel Mailing List" Subject: Re: Re: [PATCH] spi: tegra20-slink: Fix runtime PM imbalance on error X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.10 build 20190906(84e8bf8f) Copyright (c) 2002-2020 www.mailtech.cn zju.edu.cn In-Reply-To: References: <20200521074946.21799-1-dinghao.liu@zju.edu.cn> Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=UTF-8 MIME-Version: 1.0 Message-ID: <5a8a6e7b.bef25.1723b588c7f.Coremail.dinghao.liu@zju.edu.cn> X-Coremail-Locale: zh_CN X-CM-TRANSID: cS_KCgBHkD42g8dem0b+AQ--.40491W X-CM-SenderInfo: qrrzjiaqtzq6lmxovvfxof0/1tbiAgAIBlZdtOQZ8wAAs9 X-Coremail-Antispam: 1Ur529EdanIXcx71UUUUU7IcSsGvfJTRUUUbXvS07vEb7Iv0x C_Cr1lV2xY67kC6x804xWlV2xY67CY07I20VC2zVCF04k26cxKx2IYs7xG6rWj6s0DMIAI bVAFxVCF77xC64kEw24lV2xY67C26IkvcIIF6IxKo4kEV4ylV2xY628lY4IE4IxF12IF4w CS07vE84x0c7CEj48ve4kI8wCS07vE84ACjcxK6xIIjxv20xvE14v26w1j6s0DMIAIbVA2 z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVWxJr0_GcWlV2xY628EF7xvwVC2z280aVAFwI0_Gc CE3s1lV2xY628EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wCS07vEe2I262IYc4CY6c8I j28IcVAaY2xG8wCS07vE5I8CrVACY4xI64kE6c02F40Ex7xfMIAIbVAv7VC0I7IYx2IY67 AKxVWUJVWUGwCS07vEYx0Ex4A2jsIE14v26r4j6F4UMIAIbVAm72CE4IkC6x0Yz7v_Jr0_ Gr1lV2xY6x02cVAKzwCS07vEc2xSY4AK67AK6r4xMIAIbVCY0x0Ix7I2Y4AK64vIr41lV2 xY6xAIw28IcVCjz48v1sIEY20_GFWkJr1UJwCS07vE4x8a6x804xWlV2xY6xC20s026xCa FVCjc4AY6r1j6r4UMIAIbVC20s026c02F40E14v26r1j6r18MIAIbVC20s026x8GjcxK67 AKxVWUGVWUWwCS07vEx4CE17CEb7AF67AKxVWUtVW8ZwCS07vEIxAIcVC0I7IYx2IY67AK xVWUJVWUCwCS07vEIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIAIbVCI42IY6xAIw2 0EY4v20xvaj40_Wr1j6rW3Jr1lV2xY6IIF0xvEx4A2jsIE14v26r4j6F4UMIAIbVCI42IY 6I8E87Iv6xkF7I0E14v26r4UJVWxJrUvcSsGvfC2KfnxnUU== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SGkgQW5keSwKClRoYW5rIHlvdSBmb3IgeW91ciBhZHZpY2UhCgpZb3VyIHN1Z2dlc3Rpb24gaXMg dG8gdXNlIHBtX3J1bnRpbWVfcHV0X25vaWRsZSgpLCByaWdodD8gClRoZSBvbmx5IGRpZmZlcmVu Y2UgYmV0d2VlbiBwbV9ydW50aW1lX3B1dCgpIGFuZCB0aGlzIGZ1bmN0aW9uCmlzIHRoYXQgcG1f cnVudGltZV9wdXQoKSB3aWxsIHJ1biBhbiBleHRyYSBwbV9yZXF1ZXN0X2lkbGUoKS4KIApJIGNo ZWNrZWQgdGhpcyBwYXRjaGVkIGZ1bmN0aW9uIGFnYWluIGFuZCBmb3VuZCB0aGVyZSBpcyBhCnBt X3J1bnRpbWVfcHV0KCkgaW4gdGhlIG5vcm1hbCBicmFuY2ggb2YgcG1fcnVudGltZV9nZXRfc3lu YygpLgpEb2VzIHRoaXMgbWVhbiB0aGUgb3JpZ2luYWwgcHJvZ3JhbSBsb2dpYyBuZWVkIHRvIGV4 ZWN1dGUgaWRsZQpjYWxsYmFjaz8KCkFjY29yZGluZyB0byBydW50aW1lIFBNJ3MgZG9jLCB0aGUg cG1fcnVudGltZV9nZXRfc3luYygpIGNhbGwKcGFpcmVkIHdpdGggYSBwbV9ydW50aW1lX3B1dCgp IGNhbGwgd2lsbCBiZSBhcHByb3ByaWF0ZSB0byBlbnN1cmUKdGhhdCB0aGUgZGV2aWNlIGlzIG5v dCBwdXQgYmFjayB0byBzbGVlcCBkdXJpbmcgdGhlIHByb2JlLiBUaGVyZWZvcmUKSSB0aGluayBw bV9ydW50aW1lX3B1dCgpIGlzIG1vcmUgYXBwcm9wcmlhdGUgaGVyZS4gRG8geW91IGhhdmUgCm1v cmUgZGV0YWlsZWQgc3VnZ2VzdGlvbiBmb3Igd2h5IHdlIHNob3VsZCB1c2UgX3B1dF9ub2lkbGUo KT8KClJlZ2FyZHMsCkRpbmdoYW8gCj4gT24gVGh1LCBNYXkgMjEsIDIwMjAgYXQgMTA6NTAgQU0g RGluZ2hhbyBMaXUgPGRpbmdoYW8ubGl1QHpqdS5lZHUuY24+IHdyb3RlOgo+ID4KPiA+IHBtX3J1 bnRpbWVfZ2V0X3N5bmMoKSBpbmNyZW1lbnRzIHRoZSBydW50aW1lIFBNIHVzYWdlIGNvdW50ZXIg ZXZlbgo+ID4gd2hlbiBpdCByZXR1cm5zIGFuIGVycm9yIGNvZGUuIFRodXMgYSBwYWlyaW5nIGRl Y3JlbWVudCBpcyBuZWVkZWQgb24KPiA+IHRoZSBlcnJvciBoYW5kbGluZyBwYXRoIHRvIGtlZXAg dGhlIGNvdW50ZXIgYmFsYW5jZWQuCj4gCj4gLi4uCj4gCj4gPiAgICAgICAgIHJldCA9IHBtX3J1 bnRpbWVfZ2V0X3N5bmMoJnBkZXYtPmRldik7Cj4gPiAgICAgICAgIGlmIChyZXQgPCAwKSB7Cj4g PiAgICAgICAgICAgICAgICAgZGV2X2VycigmcGRldi0+ZGV2LCAicG0gcnVudGltZSBnZXQgZmFp bGVkLCBlID0gJWRcbiIsIHJldCk7Cj4gCj4gPiArICAgICAgICAgICAgICAgcG1fcnVudGltZV9w dXQoJnBkZXYtPmRldik7Cj4gCj4gRm9yIGFsbCB5b3VyIHBhdGNoZXMsIHBsZWFzZSwgZG91Ymxl IGNoZWNrIHdoYXQgeW91IGFyZSBwcm9wb3NpbmcuCj4gCj4gSGVyZSwgSSBiZWxpZXZlLCB0aGUg Y29ycmVjdCBvbmUgd2lsbCBiZSBfcHV0X25vaWRsZSgpLgo+IAo+IEFGQUlVIHlvdSBhcmUgbm90 IHN1cHBvc2VkIHRvIGFjdHVhbGx5IHN1c3BlbmQgdGhlIGRldmljZSBpbiBjYXNlIG9mIGVycm9y Lgo+IEJ1dCBJIG1pZ2h0IGJlIG1pc3Rha2VuLCB0aHVzIHNlZSBhYm92ZS4KPiAKPiA+ICAgICAg ICAgICAgICAgICBnb3RvIGV4aXRfcG1fZGlzYWJsZTsKPiA+ICAgICAgICAgfQo+IAo+IC0tIAo+ IFdpdGggQmVzdCBSZWdhcmRzLAo+IEFuZHkgU2hldmNoZW5rbwo=