From mboxrd@z Thu Jan 1 00:00:00 1970 From: Miquel Raynal Subject: Re: [RFC PATCH 2/2] mtd: m25p80: Use the SPI mem direct API to possibly improve performances Date: Thu, 7 Jun 2018 17:08:24 +0200 Message-ID: <20180607170824.6c32bfc3@xps13> References: <20180601143603.4047-1-boris.brezillon@bootlin.com> <20180601143603.4047-3-boris.brezillon@bootlin.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: Vignesh R , Richard Weinberger , Cyrille Pitchen , linux-spi@vger.kernel.org, Marek Vasut , Mark Brown , linux-mtd@lists.infradead.org, Thomas Petazzoni , Brian Norris , David Woodhouse To: Boris Brezillon Return-path: In-Reply-To: <20180601143603.4047-3-boris.brezillon@bootlin.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org List-Id: linux-spi.vger.kernel.org SGkgQm9yaXMsCgpPbiBGcmksICAxIEp1biAyMDE4IDE2OjM2OjAzICswMjAwLCBCb3JpcyBCcmV6 aWxsb24KPGJvcmlzLmJyZXppbGxvbkBib290bGluLmNvbT4gd3JvdGU6Cgo+IE1ha2UgdXNlIG9m IHRoZSBTUEkgbWVtIGRpcmVjdCBtYXBwaW5nIEFQSS4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBCb3Jp cyBCcmV6aWxsb24gPGJvcmlzLmJyZXppbGxvbkBib290bGluLmNvbT4KPiAtLS0KPiAgZHJpdmVy cy9tdGQvZGV2aWNlcy9tMjVwODAuYyB8IDE0OSArKysrKysrKysrKysrKysrKysrKysrKysrKy0t LS0tLS0tLS0tLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCA4OSBpbnNlcnRpb25zKCspLCA2MCBk ZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9tdGQvZGV2aWNlcy9tMjVwODAu YyBiL2RyaXZlcnMvbXRkL2RldmljZXMvbTI1cDgwLmMKPiBpbmRleCAxZGQ1ZjA0MjBiNWEuLjI4 NWZjOTQxMThhZSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL210ZC9kZXZpY2VzL20yNXA4MC5jCj4g KysrIGIvZHJpdmVycy9tdGQvZGV2aWNlcy9tMjVwODAuYwo+IEBAIC0zMSw2ICszMSwxMCBAQAo+ ICBzdHJ1Y3QgbTI1cCB7Cj4gIAlzdHJ1Y3Qgc3BpX21lbQkJKnNwaW1lbTsKPiAgCXN0cnVjdCBz cGlfbm9yCQlzcGlfbm9yOwo+ICsJc3RydWN0IHsKPiArCQlzdHJ1Y3Qgc3BpX21lbV9kaXJtYXBf ZGVzYyAqd3JpdGU7Cj4gKwkJc3RydWN0IHNwaV9tZW1fZGlybWFwX2Rlc2MgKnJlYWQ7Cj4gKwl9 IGRpcm1hcDsKPiAgfTsKCldoaWxlIHJlYWRpbmcgdGhpcyBwYXRjaCBJIHdhcyBhIGJpdCBjb25m dXNlZCB3aXRoIHRoaXMgbmFtaW5nLiBZb3UKcmVmZXIgdGhlc2UgZGVzY3JpcHRvcnMgYXMgJ2Zs YXNoLT5kaXJtYXAtPnJlYWQvd3JpdGUnIHdoaWNoIGlzCmNvbmZ1c2luZyBhcyB0aGlzIGlzIG5v dCBhIGZ1bmN0aW9uIGJ1dCBhIGRlc2NyaXB0b3IuIFBhc3Npbmcgc3VjaAp2YXJpYWJsZSB0byBh IGZ1bmN0aW9uIGNhbGxlZCBzcGlfbWVtZV9kaXJtYXBfcmVhZC93cml0ZSgpIGlzIGFsc28KY29u ZnVzaW5nIElNSE8gKHNlZSBiZWxvdykuCgpXb3VsZCB5b3UgbWluZCByZW5hbWluZyB0aGVtIHdp dGggc29tZXRoaW5nIGxpa2UgInJlYWQvd3JpdGVfZGVzYyI/CgpbLi4uXQoKPiBAQCAtMTA3LDM5 ICs4MSw2NiBAQCBzdGF0aWMgc3NpemVfdCBtMjVwODBfcmVhZChzdHJ1Y3Qgc3BpX25vciAqbm9y LCBsb2ZmX3QgZnJvbSwgc2l6ZV90IGxlbiwKPiAgCQkJICAgdV9jaGFyICpidWYpCj4gIHsKPiAg CXN0cnVjdCBtMjVwICpmbGFzaCA9IG5vci0+cHJpdjsKPiAtCXN0cnVjdCBzcGlfbWVtX29wIG9w ID0KPiAtCQkJU1BJX01FTV9PUChTUElfTUVNX09QX0NNRChub3ItPnJlYWRfb3Bjb2RlLCAxKSwK PiAtCQkJCSAgIFNQSV9NRU1fT1BfQUREUihub3ItPmFkZHJfd2lkdGgsIGZyb20sIDEpLAo+IC0J CQkJICAgU1BJX01FTV9PUF9EVU1NWShub3ItPnJlYWRfZHVtbXksIDEpLAo+IC0JCQkJICAgU1BJ X01FTV9PUF9EQVRBX0lOKGxlbiwgYnVmLCAxKSk7Cj4gLQlzaXplX3QgcmVtYWluaW5nID0gbGVu Owo+IC0JaW50IHJldDsKPiArCj4gKwlyZXR1cm4gc3BpX21lbV9kaXJtYXBfcmVhZChmbGFzaC0+ ZGlybWFwLnJlYWQsIGZyb20sIGxlbiwgYnVmKTsKCiAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgXgpUaGUgcGxhY2Ugd2hlcmUgSSBoYWQgdHJvdWJsZXMgdW5kZXJzdGFuZGluZyBi ZWNhdXNlIG9mIHRoZSBuYW1pbmcuCgoKVGhhbmtzLApNaXF1w6hsCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXggTVREIGRpc2N1c3Np b24gbWFpbGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vbGludXgtbXRkLwo=