From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/i915: customize DPCD brightness control for specific panel Date: Fri, 04 Oct 2019 21:40:22 +0300 Message-ID: <87d0fce4mh.fsf@intel.com> References: <20191004215851.31446-1-shawn.c.lee@intel.com> <33dcaf669eae3acfc3b716e68b69c0fe76dd2dbc.camel@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <33dcaf669eae3acfc3b716e68b69c0fe76dd2dbc.camel@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Adam Jackson , Lee Shawn C , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: Cooper Chiou , Gustavo Padovan List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCAwNCBPY3QgMjAxOSwgQWRhbSBKYWNrc29uIDxhamF4QHJlZGhhdC5jb20+IHdyb3Rl Ogo+IE9uIFNhdCwgMjAxOS0xMC0wNSBhdCAwNTo1OCArMDgwMCwgTGVlIFNoYXduIEMgd3JvdGU6 Cj4+IFRoaXMgcGFuZWwgKG1hbnVmYWN0dXJlciBpcyBTREMsIHByb2R1Y3QgSUQgaXMgMHg0MTQx KQo+PiB1c2VkIG1hbnVmYWN0dXJlciBkZWZpbmVkIERQQ0QgcmVnaXN0ZXIgdG8gY29udHJvbCBi cmlnaHRuZXNzCj4+IHRoYXQgbm90IGRlZmluZWQgaW4gZURQIHNwZWMgc28gZmFyLiBUaGlzIGNo YW5nZSBmb2xsb3cgcGFuZWwKPj4gdmVuZG9yJ3MgaW5zdHJ1Y3Rpb24gdG8gc3VwcG9ydCBicmln aHRuZXNzIGFkanVzdG1lbnQuCj4KPiBJJ20gc3VyZSB0aGlzIHdvcmtzLCBidXQgdGhpcyBzbWVs bHMgYSBsaXR0bGUgZnVubnkgdG8gbWUuCgpUaGF0IHdhcyBraW5kbHkgcHV0LiA7KQoKPj4gKwkv KiBTYW1zdW5nIGVEUCBwYW5lbCAqLwo+PiArCXsgIlNEQyIsIDB4NDE0MSwgRURJRF9RVUlSS19O T05fU1REX0JSSUdIVE5FU1NfQ09OVFJPTCB9LAo+Cj4gSXQgZmVlbHMgYSBiaXQgbGlrZSBhIGxh eWVyaW5nIHZpb2xhdGlvbiB0byBpZGVudGlmeSBlRFAgYmVoYXZpb3IKPiBjaGFuZ2VzIGJhc2Vk IG9uIEVESUQuIEJ1dCBJJ20gbm90IHN1cmUgdGhlcmUncyBhbnkgb2J2aW91cyB3YXkgdG8KPiBp ZGVudGlmeSB0aGlzIGRldmljZSBieSBpdHMgRFBDRC4gVGhlIFNpbmsgT1VJIChmcm9tIHRoZSBs aW5rZWQKPiBidWd6aWxsYSkgc2VlbXMgdG8gYmUgMDAxMUY4LCB3aGljaCBkb2Vzbid0IG1hdGNo IHVwIHRvIGFueXRoaW5nIGluIG15Cj4gb3VpLnR4dC4uLgoKV2UgaGF2ZSB0aGUgRFBDRCBxdWly ayBzdHVmZiBpbiBkcm1fZHBfaGVscGVyLmMsIGJ1dCBJSVVDIGluIHRoaXMgY2FzZQp0aGVyZSdz IG9ubHkgdGhlIE9VSSwgYW5kIHRoZSBkZXZpY2UgaWQgZXRjLiBhcmUgYWxsIHplcm9zLiBPdGhl cndpc2UgSQp0aGluayB0aGF0IHdvdWxkIGJlIHRoZSBuYXR1cmFsIHRoaW5nIHRvIGRvLCBhbmQg YWxsIHRoaXMgY291bGQgYmUKYmV0dGVyIGhpZGRlbiBhd2F5IGluIGk5MTUuCgo+Cj4+IEBAIC0x OTUzLDYgKzE5NTYsNyBAQCBzdGF0aWMgdTMyIGVkaWRfZ2V0X3F1aXJrcyhjb25zdCBzdHJ1Y3Qg ZWRpZCAqZWRpZCkKPj4gIAo+PiAgCXJldHVybiAwOwo+PiAgfQo+PiArRVhQT1JUX1NZTUJPTChl ZGlkX2dldF9xdWlya3MpOwo+Cj4gSWYgd2UncmUgZ29pbmcgdG8gZXhwb3J0IHRoaXMgaXQgc2hv dWxkIHByb2JhYmx5IGdldCBhIGRybV8gcHJlZml4Lgo+Cj4+ICsjZGVmaW5lIERQQ0RfRURQX0dF VFNFVF9DVFJMX1BBUkFNUwkJMHgzNDQKPj4gKyNkZWZpbmUgRFBDRF9FRFBfQ09OVEVOVF9MVU1J TkFOQ0UJCTB4MzQ2Cj4+ICsjZGVmaW5lIERQQ0RfRURQX1BBTkVMX0xVTUlOQU5DRV9PVkVSUklE RQkweDM0YQo+PiArI2RlZmluZSBEUENEX0VEUF9CUklHSFRORVNTX05JVFMJCTB4MzU0Cj4+ICsj ZGVmaW5lIERQQ0RfRURQX0JSSUdIVE5FU1NfT1BUSU1JWkFUSU9OCTB4MzU4Cj4+ICsKPj4gKyNk ZWZpbmUgRURQX0NVU1RPTUlaRV9NQVhfQlJJR0hUTkVTU19MRVZFTAkoNTEyKQo+Cj4gVGhpcyBh bHNvIHNlZW1zIGEgYml0IHdlaXJkLCB0aGUgMHgzMDAtMHgzRkYgcmVnaXN0ZXJzIGJlbG9uZyB0 byB0aGUKPiBfc291cmNlXyBEUCBkZXZpY2UuIEJ1dCB0aGVuIGxhdGVyLi4uCj4KPj4gKwkvKiB3 cml0ZSBzb3VyY2UgT1VJICovCj4+ICsJd3JpdGVfdmFsWzBdID0gMHgwMDsKPj4gKwl3cml0ZV92 YWxbMV0gPSAweGFhOwo+PiArCXdyaXRlX3ZhbFsyXSA9IDB4MDE7Cj4KPiBPaCBoZXksIHlvdSdy ZSB3cml0aW5nIChhbikgSW50ZWwgT1VJIHRvIHRoZSBTb3VyY2UgT1VJLCBzbyBub3cgaXQKPiBt YWtlcyBzZW5zZSB0aGF0IHlvdSdyZSB3cml0aW5nIHRvIHJlZ2lzdGVycyB3aG9zZSBiZWhhdmlv ciB0aGUgc291cmNlCj4gZGVmaW5lcy4gQnV0IHRoaXMgZG9lcyByYWlzZSB0aGUgcXVlc3Rpb246 IGlzIHRoaXMganVzdCBhIGNvbnZlbnRpb24KPiBiZXR3ZWVuIEludGVsIGFuZCB0aGlzIHBhcnRp Y3VsYXIgcGFuZWw/IFdvdWxkIHdlIGV4cGVjdCB0aGlzIHRvIHdvcmsKPiB3aXRoIG90aGVyIHNp bWlsYXIgcGFuZWxzPyBJcyB0aGVyZSBhbnkgd2F5IHRvIGtub3cgdG8gZXhwZWN0IHRoaXMKPiBj b252ZW50aW9uIGZyb20gRFBDRCBpbnN0ZWFkPwoKRm9yIG9uZSB0aGluZywgaXQncyBub3Qgc3Rh bmRhcmQuIEkgaG9uZXN0bHkgZG9uJ3Qga25vdywgYnV0IEknZCBhc3N1bWUKeW91IHdvdWxkbid0 IGZpbmQgYmVoYXZpb3VyIHdpdGggSW50ZWwgT1VJIGluIG5vbi1JbnRlbCBkZXNpZ25zLi4uIGFu ZCBhCnF1aXJrIG9mIHNvbWUgc29ydCBzZWVtcyBsaWtlIHRoZSBvbmx5IHdheSB0byBtYWtlIHRo aXMgd29yay4KCkkgc3VwcG9zZSB3ZSBjb3VsZCBzdGFydCBvZmYgd2l0aCBhIERQQ0QgcXVpcmsg dGhhdCBvbmx5IGxvb2tzIGF0IHRoZQpzaW5rIE9VSSwgYW5kIHRoZW4sIGlmIG5lZWRlZCwgbGlt aXQgYnkgRE1JIG1hdGNoaW5nIG9yIGJ5IGNoZWNraW5nIGZvcgpzb21lIERQQ0QgcmVnaXN0ZXJz ICh3aGF0LCBJIGFtIG5vdCBzdXJlLCBwZXJoYXBzIHdyaXRlIHRoZSBzb3VyY2UgT1VJCmFuZCBz ZWUgaG93IGl0IGJlaGF2ZXMpLgoKVGhhdCB3b3VsZCBhdm9pZCB0aGUgbWlsZGx5IGFubm95aW5n IGNoYW5nZSBpbiB0aGUgRURJRCBxdWlyayBpbnRlcmZhY2UKYW5kIGhvdyBpdCdzIGJlaW5nIHVz ZWQuCgpUaG91Z2h0cz8KCgpCUiwKSmFuaS4KCgoKCgotLSAKSmFuaSBOaWt1bGEsIEludGVsIE9w ZW4gU291cmNlIEdyYXBoaWNzIENlbnRlcgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5m cmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0 aW5mby9kcmktZGV2ZWw=