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Wed, 30 Jan 2019 05:36:06 -0800 (PST) Date: Wed, 30 Jan 2019 13:36:05 +0000 From: Lee Jones To: Chen-Yu Tsai Subject: Re: [PATCH] backlight: pwm_bl: Use gpiod_get_value_cansleep() to get initial state Message-ID: <20190130133605.GI4701@dell> References: <20190127145054.3770-1-wens@csie.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190127145054.3770-1-wens@csie.org> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190130_053609_408344_E5E18B62 X-CRM114-Status: GOOD ( 14.48 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pwm@vger.kernel.org, Daniel Thompson , Maxime Ripard , Jingoo Han , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Thierry Reding , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gU3VuLCAyNyBKYW4gMjAxOSwgQ2hlbi1ZdSBUc2FpIHdyb3RlOgoKPiBncGlvZF9nZXRfdmFs dWUoKSBnaXZlcyBvdXQgYSB3YXJuaW5nIGlmIGFjY2VzcyB0byB0aGUgdW5kZXJseWluZyBncGlv Y2hpcAo+IHJlcXVpcmVzIHNsZWVwaW5nLCB3aGljaCBpcyBjb21tb24gZm9yIEkyQyBiYXNlZCBj aGlwczoKPiAKPiAgICAgV0FSTklORzogQ1BVOiAwIFBJRDogNzcgYXQgZHJpdmVycy9ncGlvL2dw aW9saWIuYzoyNTAwIGdwaW9kX2dldF92YWx1ZSsweGQwLzB4MTAwCj4gICAgIE1vZHVsZXMgbGlu a2VkIGluOgo+ICAgICBDUFU6IDAgUElEOiA3NyBDb21tOiBrd29ya2VyLzA6MiBOb3QgdGFpbnRl ZCA0LjE0LjAtcmMzLTAwNTg5LWdmMzI4OTc5MTVkNDgtZGlydHkgIzkwCj4gICAgIEhhcmR3YXJl IG5hbWU6IEFsbHdpbm5lciBzdW40aS9zdW41aSBGYW1pbGllcwo+ICAgICBXb3JrcXVldWU6IGV2 ZW50cyBkZWZlcnJlZF9wcm9iZV93b3JrX2Z1bmMKPiAgICAgWzxjMDEwZWM1MD5dICh1bndpbmRf YmFja3RyYWNlKSBmcm9tIFs8YzAxMGI3ODQ+XSAoc2hvd19zdGFjaysweDEwLzB4MTQpCj4gICAg IFs8YzAxMGI3ODQ+XSAoc2hvd19zdGFjaykgZnJvbSBbPGMwNzk3MjI0Pl0gKGR1bXBfc3RhY2sr MHg4OC8weDljKQo+ICAgICBbPGMwNzk3MjI0Pl0gKGR1bXBfc3RhY2spIGZyb20gWzxjMDEyNWIw OD5dIChfX3dhcm4rMHhlOC8weDEwMCkKPiAgICAgWzxjMDEyNWIwOD5dIChfX3dhcm4pIGZyb20g WzxjMDEyNWJkMD5dICh3YXJuX3Nsb3dwYXRoX251bGwrMHgyMC8weDI4KQo+ICAgICBbPGMwMTI1 YmQwPl0gKHdhcm5fc2xvd3BhdGhfbnVsbCkgZnJvbSBbPGMwMzcwNjljPl0gKGdwaW9kX2dldF92 YWx1ZSsweGQwLzB4MTAwKQo+ICAgICBbPGMwMzcwNjljPl0gKGdwaW9kX2dldF92YWx1ZSkgZnJv bSBbPGMwMzc3OGQwPl0gKHB3bV9iYWNrbGlnaHRfcHJvYmUrMHgyMzgvMHg1MDgpCj4gICAgIFs8 YzAzNzc4ZDA+XSAocHdtX2JhY2tsaWdodF9wcm9iZSkgZnJvbSBbPGMwNDExYTJjPl0gKHBsYXRm b3JtX2Rydl9wcm9iZSsweDUwLzB4YWMpCj4gICAgIFs8YzA0MTFhMmM+XSAocGxhdGZvcm1fZHJ2 X3Byb2JlKSBmcm9tIFs8YzA0MTAyMjQ+XSAoZHJpdmVyX3Byb2JlX2RldmljZSsweDIzOC8weDJl OCkKPiAgICAgWzxjMDQxMDIyND5dIChkcml2ZXJfcHJvYmVfZGV2aWNlKSBmcm9tIFs8YzA0MGU4 MjA+XSAoYnVzX2Zvcl9lYWNoX2RydisweDQ0LzB4OTQpCj4gICAgIFs8YzA0MGU4MjA+XSAoYnVz X2Zvcl9lYWNoX2RydikgZnJvbSBbPGMwNDBmZjBjPl0gKF9fZGV2aWNlX2F0dGFjaCsweGIwLzB4 MTE0KQo+ICAgICBbPGMwNDBmZjBjPl0gKF9fZGV2aWNlX2F0dGFjaCkgZnJvbSBbPGMwNDBmNGY4 Pl0gKGJ1c19wcm9iZV9kZXZpY2UrMHg4NC8weDhjKQo+ICAgICBbPGMwNDBmNGY4Pl0gKGJ1c19w cm9iZV9kZXZpY2UpIGZyb20gWzxjMDQwZjk0ND5dIChkZWZlcnJlZF9wcm9iZV93b3JrX2Z1bmMr MHg1MC8weDE0YykKPiAgICAgWzxjMDQwZjk0ND5dIChkZWZlcnJlZF9wcm9iZV93b3JrX2Z1bmMp IGZyb20gWzxjMDEzYmU4ND5dIChwcm9jZXNzX29uZV93b3JrKzB4MWVjLzB4NDE0KQo+ICAgICBb PGMwMTNiZTg0Pl0gKHByb2Nlc3Nfb25lX3dvcmspIGZyb20gWzxjMDEzY2U1Yz5dICh3b3JrZXJf dGhyZWFkKzB4MmIwLzB4NWEwKQo+ICAgICBbPGMwMTNjZTVjPl0gKHdvcmtlcl90aHJlYWQpIGZy b20gWzxjMDE0MTkwOD5dIChrdGhyZWFkKzB4MTRjLzB4MTU0KQo+ICAgICBbPGMwMTQxOTA4Pl0g KGt0aHJlYWQpIGZyb20gWzxjMDEwN2FiMD5dIChyZXRfZnJvbV9mb3JrKzB4MTQvMHgyNCkKPiAK PiBUaGlzIHdhcyBtaXNzZWQgaW4gY29tbWl0IDBjOTUwMWY4MjNhNCAoImJhY2tsaWdodDogcHdt X2JsOiBIYW5kbGUgZ3Bpbwo+IHRoYXQgY2FuIHNsZWVwIikuIFRoZSBjb2RlIHdhcyB0aGVuIG1v dmVkIHRvIGEgc2VwYXJhdGUgZnVuY3Rpb24gaW4KPiBjb21taXQgNzYxM2M5MjIzMTVlICgiYmFj a2xpZ2h0OiBwd21fYmw6IE1vdmUgdGhlIGNoZWNrcyBmb3IgaW5pdGlhbCBwb3dlcgo+IHN0YXRl IHRvIGEgc2VwYXJhdGUgZnVuY3Rpb24iKS4KPiAKPiBUaGUgb25seSB1c2FnZSBvZiBncGlvZF9n ZXRfdmFsdWUoKSBpcyBkdXJpbmcgdGhlIHByb2JlIHN0YWdlLCB3aGljaCBpcwo+IHNhZmUgdG8g c2xlZXAgaW4uIFN3aXRjaCB0byBncGlvZF9nZXRfdmFsdWVfY2Fuc2xlZXAoKS4KPiAKPiBGaXhl czogMGM5NTAxZjgyM2E0ICgiYmFja2xpZ2h0OiBwd21fYmw6IEhhbmRsZSBncGlvIHRoYXQgY2Fu IHNsZWVwIikKPiBTaWduZWQtb2ZmLWJ5OiBDaGVuLVl1IFRzYWkgPHdlbnNAY3NpZS5vcmc+Cj4g LS0tCj4gIGRyaXZlcnMvdmlkZW8vYmFja2xpZ2h0L3B3bV9ibC5jIHwgMiArLQo+ICAxIGZpbGUg Y2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRpb24oLSkKCkFwcGxpZWQsIHRoYW5rcy4K Ci0tIApMZWUgSm9uZXMgW+adjueQvOaWr10KTGluYXJvIFNlcnZpY2VzIFRlY2huaWNhbCBMZWFk CkxpbmFyby5vcmcg4pSCIE9wZW4gc291cmNlIHNvZnR3YXJlIGZvciBBUk0gU29DcwpGb2xsb3cg TGluYXJvOiBGYWNlYm9vayB8IFR3aXR0ZXIgfCBCbG9nCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdAps aW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVh ZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==