From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: Improve the accuracy of the baud rate generator by using round-to-closest instead of truncating when calculating baud rate divisors. From: Johan Hovold Message-Id: <20181115082449.GH19900@localhost> Date: Thu, 15 Nov 2018 09:24:49 +0100 To: Nikolaj Fogh Cc: Johan Hovold , nfogh@vectory.com, linux-usb@vger.kernel.org List-ID: T24gVHVlLCBOb3YgMTMsIDIwMTggYXQgMDg6MTk6NDRQTSArMDEwMCwgTmlrb2xhaiBGb2doIHdy b3RlOgo+IE9uIDExLzEyLzE4IDEwOjU0IEFNLCBKb2hhbiBIb3ZvbGQgd3JvdGU6Cj4gPiBPbiBX ZWQsIE9jdCAzMSwgMjAxOCBhdCAwOToxNjo0OFBNICswMTAwLCBOaWtvbGFqIEZvZ2ggd3JvdGU6 Cj4gPj4gSSBoYXZlIGV4cGVyaWVuY2VkIHRoYXQgdGhlIGZ0ZGlfc2lvIGRyaXZlciBnaXZlcyBs ZXNzLXRoYW4tb3B0aW1hbAo+ID4+IGJhdWQgcmF0ZXMgYXMgdGhlIGRyaXZlciB0cnVuY2F0ZXMg aW5zdGVhZCBvZiByb3VuZHMgdG8gbmVhcmVzdAo+ID4+IGR1cmluZyBiYXVkIHJhdGUgZGl2aXNv ciBjYWxjdWxhdGlvbi4KCj4gPj4gVGhpcyBwYXRjaCBpbXByb3ZlcyBvbiB0aGUgYmF1ZCByYXRl IGdlbmVyYXRpb24uIFRoZSBnZW5lcmF0ZWQgYmF1ZAo+ID4+IHJhdGUgY29ycmVzcG9uZHMgdG8g dGhlIG9wdGltYWwgYmF1ZCByYXRlIGFjaGlldmFibGUgd2l0aCB0aGUgY2hpcC4KPiA+PiBUaGlz IGlzIHdoYXQgdGhlIHdpbmRvd3MgZHJpdmVyIGdpdmVzIGFzIHdlbGwuCj4gPgo+ID4gSG93IGRp ZCB5b3UgdmVyaWZ5IHRoaXM/IERpZCB5b3UgdHJhY2UgYW5kIGNvbXBhcmUgdGhlIGRpdmlzb3Jz Cj4gPiBhY3R1YWxseSByZXF1ZXN0ZWQgYnkgdGhlIFdpbmRvd3MgZHJpdmVyLCBvciBkaWQgeW91 IG1lYXN1cmUgdGhlCj4gPiByZXN1bHRpbmcgcmF0ZXMgdXNpbmcgYSBzY29wZT8KCj4gSSB2ZXJp ZmllZCBpdCBieSBzY29wZS4gR3JhbnRlZCwgSSBvbmx5IHZlcmlmaWVkIGl0IGZvciBvbmUgYmF1 ZCByYXRlCj4gKDk2MTIwMCkuIFdoZXRoZXIgaXQgZ2l2ZXMgdGhlIHNhbWUgYXMgdGhlIFdpbmRv d3MgZHJpdmVyIGluIGdlbmVyYWwsCj4gSSdtIG5vdCBzdXJlLiBIb3dldmVyLCBJIHdvdWxkIHRo aW5rIHRoYXQgcm91bmRpbmcgaW5zdGVhZCBvZiBmbG9vcmluZwo+IHdvdWxkIGFsd2F5cyB5aWVs ZCB0aGUgbW9zdCBhY2N1cmF0ZSByZXN1bHQuCgpJJ20gbm90IHNvIHN1cmUgaW4gdGhpcyBjYXNl LiBUaGUgZHJpdmVyIHVzZXMgInN1Yi1pbnRlZ2VyIiBkaXZpc29ycyBhbmQKbG9va3MgbGlrZSBp dCBkZXBlbmRzIG9uIHRydW5jYXRpb24gcmF0aGVyIHRoYW4gcm91bmRpbmcuIFNvbWUKYmFja2dy b3VuZCBoZXJlOgoKCWh0dHBzOi8vd3d3LmZ0ZGljaGlwLmNvbS9TdXBwb3J0L0tub3dsZWRnZWJh c2UvaW5kZXguaHRtbD93aGF0YmF1ZHJhdGVzYXJlYWNoaWV2ZWFibC5odG0KCklmIHlvdSB3YW50 IHRvIGNoYW5nZSB0aGVzZSBjYWxjdWxhdGlvbnMgeW91IG5lZWQgdG8gbWFrZSBhIHN0cm9uZ2Vy CmNhc2UgZm9yIGl0IGFuZCB2ZXJpZnkgdGhhdCB3ZSBkb24ndCBtZXNzIHVwIHNvbWUgb3RoZXIg cmF0ZQppbmFkdmVydGVudGx5LgoKVGhhbmtzLApKb2hhbgo=