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: [v2,2/3] spi: add FTDI MPSSE SPI controller driver From: Mark Brown Message-Id: <20181121124237.GC8059@sirena.org.uk> Date: Wed, 21 Nov 2018 12:42:37 +0000 To: Anatolij Gustschin Cc: linux-usb@vger.kernel.org, linux-spi@vger.kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org, atull@kernel.org, mdf@kernel.org List-ID: T24gVHVlLCBOb3YgMjAsIDIwMTggYXQgMDE6Mjg6MjBBTSArMDEwMCwgQW5hdG9saWogR3VzdHNj aGluIHdyb3RlOgoKPiAtLS0gYS9kcml2ZXJzL3NwaS9NYWtlZmlsZQo+ICsrKyBiL2RyaXZlcnMv c3BpL01ha2VmaWxlCj4gQEAgLTExMyw2ICsxMTMsNyBAQCBvYmotJChDT05GSUdfU1BJX1hJTElO WCkJCSs9IHNwaS14aWxpbngubwo+ICBvYmotJChDT05GSUdfU1BJX1hMUCkJCQkrPSBzcGkteGxw Lm8KPiAgb2JqLSQoQ09ORklHX1NQSV9YVEVOU0FfWFRGUEdBKQkJKz0gc3BpLXh0ZW5zYS14dGZw Z2Eubwo+ICBvYmotJChDT05GSUdfU1BJX1pZTlFNUF9HUVNQSSkJCSs9IHNwaS16eW5xbXAtZ3Fz cGkubwo+ICtvYmotJChDT05GSUdfU1BJX0ZURElfTVBTU0UpCQkrPSBzcGktZnRkaS1tcHNzZS5v Cj4gIAo+ICAjIFNQSSBzbGF2ZSBwcm90b2NvbCBoYW5kbGVycwo+ICBvYmotJChDT05GSUdfU1BJ X1NMQVZFX1RJTUUpCQkrPSBzcGktc2xhdmUtdGltZS5vCgpQbGVhc2Uga2VlcCB0aGUgTWFrZWZp bGUgc29ydGVkLgoKPiArKysgYi9kcml2ZXJzL3NwaS9zcGktZnRkaS1tcHNzZS5jCj4gQEAgLTAs MCArMSw2NzMgQEAKPiArLy8gU1BEWC1MaWNlbnNlLUlkZW50aWZpZXI6IEdQTC0yLjAKPiArLyoK PiArICogRlRESSBGVDIzMkggTVBTU0UgU1BJIGNvbnRyb2xsZXIgZHJpdmVyCgpQbGVhc2UgbWFr ZSB0aGUgZW50aXJlIGNvbW1lbnQgYmxvY2sgaGVyZSBhIEMrKyBvbmUgc28gaXQgbG9va3MgbW9y ZQpjb25zaXN0ZW50LgoKPiArCXN0cnVjdCBncGlvZF9sb29rdXBfdGFibGUgKmxvb2t1cFsxM107 CgpUaGlzIG1hZ2ljIG51bWJlciBmb3IgdGhlIHNpemUgb2YgdGhlIGxvb2t1cCB0YWJsZSBpcyBu b3QgZ29vZC4KCj4gK3N0YXRpYyB2b2lkIGZ0ZGlfc3BpX2NoaXBzZWxlY3Qoc3RydWN0IGZ0ZGlf c3BpICpwcml2LCBzdHJ1Y3Qgc3BpX2RldmljZSAqc3BpLAo+ICsJCQkJYm9vbCB2YWx1ZSkKPiAr ewo+ICsJaW50IGNzID0gc3BpLT5jaGlwX3NlbGVjdDsKPiArCj4gKwlkZXZfZGJnKCZwcml2LT5t YXN0ZXItPmRldiwgIiVzOiBDUyAlZCwgY3MgbW9kZSAlZCwgdmFsICVkXG4iLAo+ICsJCV9fZnVu Y19fLCBjcywgKHNwaS0+bW9kZSAmIFNQSV9DU19ISUdIKSwgdmFsdWUpOwo+ICsKPiArCWdwaW9k X3NldF9yYXdfdmFsdWVfY2Fuc2xlZXAocHJpdi0+Y3NfZ3Bpb3NbY3NdLCB2YWx1ZSk7Cj4gK30K ClRoaXMgaXMganVzdCBhIGdwaW8gY2hpcCBzZWxlY3QgLSBjYW4ndCBpdCBiZSBoYW5kbGVkIGJ5 IHRoZSBjb3JlIGNoaXAKc2VsZWN0IGNvZGU/Cgo+ICsJcmVtYWluaW5nID0gbGVuOwo+ICsJZG8g ewo+ICsJCXN0cmlkZSA9IG1pbl90KHNpemVfdCwgcmVtYWluaW5nLCBTWl82NEsgLSAzKTsKClJh dGhlciB0aGFuIGhhdmluZyBhIG1hZ2ljIG51bWJlciBmb3IgdGhlIGJ1ZmZlciBzaXplIGl0IHdv dWxkIGJlIGJldHRlcgp0byBlaXRoZXIgaGF2ZSBhIGRyaXZlciBzcGVjaWZpYyBjb25zdGFudCB0 aGF0J3MgdXNlZCBjb25zaXN0ZW50bHkgb3IKanVzdCB1c2Ugc2l6ZW9mKCkgd2hlbiBpdCdzIHJl ZmVyZW5jZWQgaW4gdGhlIGNvZGUuICBUaGF0IHdheSBpZiB0aGUKYnVmZmVyIHNpemUgaXMgY2hh bmdlZCBub3RoaW5nIHdpbGwgZ2V0IG1pc3NlZC4KCj4gKwkJLyogTGFzdCB0cmFuc2ZlciB3aXRo IGNzX2NoYW5nZSBzZXQsIHN0b3Aga2VlcGluZyBDUyAqLwo+ICsJCWlmIChsaXN0X2lzX2xhc3Qo JnQtPnRyYW5zZmVyX2xpc3QsICZtc2ctPnRyYW5zZmVycykpIHsKPiArCQkJa2VlcF9jcyA9IHRy dWU7Cj4gKwkJCWJyZWFrOwo+ICsJCX0KPiArCQlmdGRpX3NwaV9jaGlwc2VsZWN0KHByaXYsIHNw aSwgIShzcGktPm1vZGUgJiBTUElfQ1NfSElHSCkpOwo+ICsJCXVzbGVlcF9yYW5nZSgxMCwgMTUp Owo+ICsJCWZ0ZGlfc3BpX2NoaXBzZWxlY3QocHJpdiwgc3BpLCBzcGktPm1vZGUgJiBTUElfQ1Nf SElHSCk7CgpJJ20gbm90IGNsZWFyIHdoYXQgdGhpcyBpcyBpbnRlbmRlZCB0byBkbz8gIEl0J3Mg b3ZlcmFsbCBub3QgY2xlYXIgdG8gbWUKdGhhdCB0aGUgZHJpdmVyIG5lZWRzIHRvIHVzZSB0cmFu c2Zlcl9vbmVfbWVzc2FnZSBhbmQgbm90IHRyYW5zZmVyX29uZSwKdGhlIGxhdHRlciBrZWVwcyBt b3JlIG9mIHRoZSBjb2RlIGluIGNvbW1vbiBjb2RlLgoKPiArCS8qIEZpbmQgbWF4LiBzbGF2ZSBj aGlwc2VsZWN0IG51bWJlciAqLwo+ICsJbnVtX2NzID0gcGQtPnNwaV9pbmZvX2xlbjsKPiArCWZv ciAoaSA9IDA7IGkgPCBudW1fY3M7IGkrKykgewo+ICsJCWlmIChtYXhfY3MgPCBwZC0+c3BpX2lu Zm9baV0uY2hpcF9zZWxlY3QpCj4gKwkJCW1heF9jcyA9IHBkLT5zcGlfaW5mb1tpXS5jaGlwX3Nl bGVjdDsKPiArCX0KPiArCj4gKwlpZiAobWF4X2NzID4gMTIpIHsKPiArCQlkZXZfZXJyKGRldiwg IkludmFsaWQgbWF4IENTIGluIHBsYXRmb3JtIGRhdGE6ICVkXG4iLCBtYXhfY3MpOwo+ICsJCXJl dHVybiAtRUlOVkFMOwo+ICsJfQo+ICsJZGV2X2RiZyhkZXYsICJDUyBjb3VudCAlZCwgbWF4IENT ICVkXG4iLCBudW1fY3MsIG1heF9jcyk7Cj4gKwltYXhfY3MgKz0gMTsgLyogaW5jbHVkaW5nIENT MCAqLwoKV2h5IG5vdCBqdXN0IHNpemUgdGhlIGFycmF5IGJhc2VkIG9uIHRoZSBwbGF0Zm9ybSBk YXRhPwo=