From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Brandt Subject: RE: [PATCH v2] spi: add Renesas RPC-IF driver Date: Mon, 10 Feb 2020 19:34:55 +0000 Message-ID: References: <6515c5ec-8432-0b20-426d-0428bbdf3712@cogentembedded.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: Mason Yang To: Sergei Shtylyov , "linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Mark Brown Return-path: In-Reply-To: Content-Language: en-US Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: SGVsbG8gU2VyZ2VpLA0KDQpPbiBGZWIgMTAsIDIwMjAsIENocmlzIEJyYW5kdCB3cm90ZToNCj4g U2lkZSBub3RlLCBlcmFzZSBzZWVtcyBPSy4uLmJ1dCB3cml0aW5nIGRhdGEgc2VlbXMgdG8gZ2V0 IG1lc3NlZCB1cC4NCj4gQXMgeW91IGNhbiBzZWUgYmVsb3csIGl0J3MgYWRkaW5nIDIgYnl0ZXMg b2YgMDAgaW50byB0aGUgd3JpdGUgc3RyZWFtLg0KPiANCj4gJCBmbGFzaF9lcmFzZWFsbCAvZGV2 L210ZDMNCj4gRXJhc2luZyAyNTYgS2lieXRlIEAgMTAwMDAwMCAtIDEwMCUgY29tcGxldGUuDQo+ ICQgaGV4ZHVtcCAtQyAtbjEwMCAvZGV2L210ZDMNCj4gMDAwMDAwMDAgIGZmIGZmIGZmIGZmIGZm IGZmIGZmIGZmICBmZiBmZiBmZiBmZiBmZiBmZiBmZiBmZg0KPiB8Li4uLi4uLi4uLi4uLi4uLnwN Cj4gKg0KPiAwMDAwMDA2MA0KPiAkIGhleGR1bXAgLUMgLW4xMDAgL2Rldi9tdGQzDQo+IDAwMDAw MDAwICBmZiBmZiBmZiBmZiBmZiBmZiBmZiBmZiAgZmYgZmYgZmYgZmYgZmYgZmYgZmYgZmYNCj4g fC4uLi4uLi4uLi4uLi4uLi58DQo+ICoNCj4gMDAwMDAwNjANCj4gJCBlY2hvICJoZWxsbyIgPiAv ZGV2L210ZDMNCj4gJCBoZXhkdW1wIC1DIC1uMTAwIC9kZXYvbXRkMw0KPiAwMDAwMDAwMCAgNjgg NjUgNmMgNmMgMDAgMDAgNmYgMGEgIGZmIGZmIGZmIGZmIGZmIGZmIGZmIGZmDQo+IHxoZWxsLi5v Li4uLi4uLi4ufA0KPiAwMDAwMDAxMCAgZmYgZmYgZmYgZmYgZmYgZmYgZmYgZmYgIGZmIGZmIGZm IGZmIGZmIGZmIGZmIGZmDQo+IHwuLi4uLi4uLi4uLi4uLi4ufA0KPiAqDQo+IDAwMDAwMDYwDQoN Cg0KSSB0aGluayBoZXJlIGlzIHRoZSBpc3N1ZSBvZiB0aGUgZXh0cmEgMDBzIGluIHRoZSB3cml0 ZSBieXRlIHN0cmVhbS4NCg0KRm9yIHlvdXIgY29kZSwgeW91IGhhdmUgdGhpcyBpbiBmdW5jdGlv biBycGNpZl9pb194ZmVyKCk6DQoNCgkJCW1lbWNweShkYXRhLCBycGMtPmJ1ZmZlciArIHBvcywg bmJ5dGVzKTsNCgkJCWlmIChuYnl0ZXMgPiA0KSB7DQoJCQkJcmVnbWFwX3dyaXRlKHJwYy0+cmVn bWFwLCBSUENJRl9TTVdEUjEsDQoJCQkJCSAgICAgZGF0YVswXSk7DQoJCQkJcmVnbWFwX3dyaXRl KHJwYy0+cmVnbWFwLCBSUENJRl9TTVdEUjAsDQoJCQkJCSAgICAgZGF0YVsxXSk7DQoJCQl9IGVs c2UgaWYgKG5ieXRlcyA+IDIpIHsNCgkJCQlyZWdtYXBfd3JpdGUocnBjLT5yZWdtYXAsIFJQQ0lG X1NNV0RSMCwNCgkJCQkJICAgICBkYXRhWzBdKTsNCgkJCX0gZWxzZQl7DQoJCQkJcmVnbWFwX3dy aXRlKHJwYy0+cmVnbWFwLCBSUENJRl9TTVdEUjAsDQoJCQkJCSAgICAgZGF0YVswXSA8PCAxNik7 DQoJCQl9DQoNCg0KQnV0LCB5b3UgY2Fubm90IGRvIGEgMzItYml0IHJlZ2lzdGVyIHdyaXRlIHdo ZW4geW91IGhhdmUgbGVzcyB0aGFuIDMyLWJpdHMgb2YgZGF0YS4NCg0KSWYgeW91IG9ubHkgaGF2 ZSAyIGJ5dGVzIG9mIGRhdGEgbGVmdCB0byB3cml0ZSwgeW91IGhhdmUgdG8gZG8gYSAxNi1iaXQg d3JpdGUgdG8gdGhlIFNNV0RSMCByZWdpc3Rlci4NCklmIHlvdSBvbmx5IGhhdmUgMSBieXRlIG9m IGRhdGEgbGVmdCB0byB3cml0ZSwgeW91IGhhdmUgdG8gZG8gYSA4LWJpdCB3cml0ZSB0byB0aGUg U01XRFIwIHJlZ2lzdGVyLg0KDQpJZiB5b3Ugb25seSBoYXZlIDMgYnl0ZXMgb2YgZGF0YSBsZWZ0 IHRvIHdyaXRlLCB5b3UgZmlyc3Qgc2VuZCAyIGJ5dGVzLCB0aGVuIHNlbmQgdGhlIGxhc3QgYnl0 ZS4NCg0KWW91ciByZWdtYXAgaXMgb25seSBzZXQgdXAgdG8gZG8gMzItYml0IHdyaXRlcywgc28g eW91J2xsIGhhdmUgdG8gdXNlIHNvbWV0aGluZyBsaWtlIGlvd3JpdGUxNiBhbmQgaW93cml0ZTgu DQpUaGlzIGlzIHdoeSBJIGRpZCBub3QgdXNlIHJlZ21hcCBpbiBteSBTUEktQlNDIGRyaXZlci4N Cg0KRm9yIGV4YW1wbGUsIGhlcmUgaXMgdGhlIGNvZGUgZnJvbSBteSBTUEktQlNDIGRyaXZlcjoN Cg0KCXdoaWxlIChsZW4gPiAwKSB7DQoJCWlmIChsZW4gPj0gNCkgew0KCQkJdW5pdCA9IDQ7DQoJ CQlzbWVuciA9IFNNRU5SX1NQSURFKFNQSURFXzMyQklUUyk7DQoJCX0gZWxzZSB7DQoJCQl1bml0 ID0gbGVuOw0KCQkJaWYgKHVuaXQgPT0gMykNCgkJCQl1bml0ID0gMjsNCg0KCQkJaWYgKHVuaXQg Pj0gMikNCgkJCQlzbWVuciA9IFNNRU5SX1NQSURFKFNQSURFXzE2QklUUyk7DQoJCQllbHNlDQoJ CQkJc21lbnIgPSBTTUVOUl9TUElERShTUElERV84QklUUyk7DQoJCX0NCg0KCQkvKiBzZXQgNGJ5 dGVzIGRhdGEsIGJpdCBzdHJlYW0gKi8NCgkJc213ZHIwID0gKmRhdGErKzsNCgkJaWYgKHVuaXQg Pj0gMikNCgkJCXNtd2RyMCB8PSAodTMyKSgqZGF0YSsrIDw8IDgpOw0KCQlpZiAodW5pdCA+PSAz KQ0KCQkJc213ZHIwIHw9ICh1MzIpKCpkYXRhKysgPDwgMTYpOw0KCQlpZiAodW5pdCA+PSA0KQ0K CQkJc213ZHIwIHw9ICh1MzIpKCpkYXRhKysgPDwgMjQpOw0KDQoJCS8qIG1hc2sgdW53cml0ZSBh cmVhICovDQoJCWlmICh1bml0ID09IDMpDQoJCQlzbXdkcjAgfD0gMHhGRjAwMDAwMDsNCgkJZWxz ZSBpZiAodW5pdCA9PSAyKQ0KCQkJc213ZHIwIHw9IDB4RkZGRjAwMDA7DQoJCWVsc2UgaWYgKHVu aXQgPT0gMSkNCgkJCXNtd2RyMCB8PSAweEZGRkZGRjAwOw0KDQoJCS8qIHdyaXRlIHNlbmQgZGF0 YS4gKi8NCgkJaWYgKHVuaXQgPT0gMikNCgkJCXNwaWJzY193cml0ZTE2KHNic2MsIFNNV0RSMCwg KHUxNilzbXdkcjApOw0KCQllbHNlIGlmICh1bml0ID09IDEpDQoJCQlzcGlic2Nfd3JpdGU4KHNi c2MsIFNNV0RSMCwgKHU4KXNtd2RyMCk7DQoJCWVsc2UNCgkJCXNwaWJzY193cml0ZShzYnNjLCBT TVdEUjAsIHNtd2RyMCk7DQoNCg0KQ2hyaXMNCg0KDQoNCg==