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Changes since v1: [addressed comments from Andy and Fabio] * fix GPIO polarity from active high to active low for correct documentation * fix license header by using SPDX identifier * remove debug prints at the beginning of functions. * only support auto clock switching (manual switching was dead code anyway) (in the future we could add a DT property to choose between manual and auto) * Use gpiod API * use GENMASK * introduce power_off/power_on One open question is the resume sequence which appears to need power_off/power_on. Just power_on alone isn't enough. With just power_on after resume aplay plays a song for 1 seconds and then the sound stops. Datasheet says, page 55" (1) The PDN pin should be held to “L” for more than 150 ns after AVDD and TVDD are powered up. Daniel Baluta (2): ASoC: codecs: Add support for AK5558 ADC driver ASoC: ak5558: Add bindings for AK5558 ADC Documentation/devicetree/bindings/sound/ak5558.txt | 23 + sound/soc/codecs/Kconfig | 6 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/ak5558.c | 626 +++++++++++++++++++++ sound/soc/codecs/ak5558.h | 52 ++ 5 files changed, 709 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/ak5558.txt create mode 100644 sound/soc/codecs/ak5558.c create mode 100644 sound/soc/codecs/ak5558.h -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Baluta Subject: [PATCH v2 0/2] Add support for AK5558 ADC Date: Fri, 2 Feb 2018 18:20:04 +0200 Message-ID: <1517588406-3295-1-git-send-email-daniel.baluta@nxp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: broonie@kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, andy.shevchenko@gmail.com, fabio.estevam@nxp.com Cc: daniel.baluta@gmail.com, shengjiu.wang@nxp.com, linux-kernel@vger.kernel.org, wakasugi.jb@om.asahi-kasei.co.jp, linux-imx@nxp.com, cosmin.samoila@nxp.com, daniel.baluta@nxp.com, mihai.serban@gmail.com List-Id: devicetree@vger.kernel.org V2Ugc3VwcG9ydCBub3JtYWwgbW9kZSwgVERNIG1vZGUgYW5kIHBtLgoKQ2hhbmdlcyBzaW5jZSB2 MTogW2FkZHJlc3NlZCBjb21tZW50cyBmcm9tIEFuZHkgYW5kIEZhYmlvXQogKiBmaXggR1BJTyBw b2xhcml0eSBmcm9tIGFjdGl2ZSBoaWdoIHRvIGFjdGl2ZSBsb3cgZm9yIGNvcnJlY3QgZG9jdW1l bnRhdGlvbgogKiBmaXggbGljZW5zZSBoZWFkZXIgYnkgdXNpbmcgU1BEWCBpZGVudGlmaWVyCiAq IHJlbW92ZSBkZWJ1ZyBwcmludHMgYXQgdGhlIGJlZ2lubmluZyBvZiBmdW5jdGlvbnMuCiAqIG9u bHkgc3VwcG9ydCBhdXRvIGNsb2NrIHN3aXRjaGluZyAobWFudWFsIHN3aXRjaGluZyB3YXMgZGVh ZCBjb2RlIGFueXdheSkgKGluIHRoZQogICBmdXR1cmUgd2UgY291bGQgYWRkIGEgRFQgcHJvcGVy dHkgdG8gY2hvb3NlIGJldHdlZW4gbWFudWFsIGFuZCBhdXRvKQogKiBVc2UgZ3Bpb2QgQVBJCiAq IHVzZSBHRU5NQVNLCiAqIGludHJvZHVjZSBwb3dlcl9vZmYvcG93ZXJfb24KCk9uZSBvcGVuIHF1 ZXN0aW9uIGlzIHRoZSByZXN1bWUgc2VxdWVuY2Ugd2hpY2ggYXBwZWFycyB0byBuZWVkIHBvd2Vy X29mZi9wb3dlcl9vbi4KSnVzdCBwb3dlcl9vbiBhbG9uZSBpc24ndCBlbm91Z2guIFdpdGgganVz dCBwb3dlcl9vbiBhZnRlciByZXN1bWUgYXBsYXkgcGxheXMgYQpzb25nIGZvciAxIHNlY29uZHMg YW5kIHRoZW4gdGhlIHNvdW5kIHN0b3BzLgoKRGF0YXNoZWV0IHNheXMsIHBhZ2UgNTUiCgooMSkg VGhlIFBETiBwaW4gc2hvdWxkIGJlIGhlbGQgdG8g4oCcTOKAnSBmb3IgbW9yZSB0aGFuIDE1MCBu cyBhZnRlciBBVkREIGFuZCBUVkREIGFyZSBwb3dlcmVkIHVwLgoKRGFuaWVsIEJhbHV0YSAoMik6 CiAgQVNvQzogY29kZWNzOiBBZGQgc3VwcG9ydCBmb3IgQUs1NTU4IEFEQyBkcml2ZXIKICBBU29D OiBhazU1NTg6IEFkZCBiaW5kaW5ncyBmb3IgQUs1NTU4IEFEQwoKIERvY3VtZW50YXRpb24vZGV2 aWNldHJlZS9iaW5kaW5ncy9zb3VuZC9hazU1NTgudHh0IHwgIDIzICsKIHNvdW5kL3NvYy9jb2Rl Y3MvS2NvbmZpZyAgICAgICAgICAgICAgICAgICAgICAgICAgIHwgICA2ICsKIHNvdW5kL3NvYy9j b2RlY3MvTWFrZWZpbGUgICAgICAgICAgICAgICAgICAgICAgICAgIHwgICAyICsKIHNvdW5kL3Nv Yy9jb2RlY3MvYWs1NTU4LmMgICAgICAgICAgICAgICAgICAgICAgICAgIHwgNjI2ICsrKysrKysr KysrKysrKysrKysrKwogc291bmQvc29jL2NvZGVjcy9hazU1NTguaCAgICAgICAgICAgICAgICAg ICAgICAgICAgfCAgNTIgKysKIDUgZmlsZXMgY2hhbmdlZCwgNzA5IGluc2VydGlvbnMoKykKIGNy ZWF0ZSBtb2RlIDEwMDY0NCBEb2N1bWVudGF0aW9uL2RldmljZXRyZWUvYmluZGluZ3Mvc291bmQv YWs1NTU4LnR4dAogY3JlYXRlIG1vZGUgMTAwNjQ0IHNvdW5kL3NvYy9jb2RlY3MvYWs1NTU4LmMK IGNyZWF0ZSBtb2RlIDEwMDY0NCBzb3VuZC9zb2MvY29kZWNzL2FrNTU1OC5oCgotLSAKMi43LjQK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkFsc2EtZGV2 ZWwgbWFpbGluZyBsaXN0CkFsc2EtZGV2ZWxAYWxzYS1wcm9qZWN0Lm9yZwpodHRwOi8vbWFpbG1h bi5hbHNhLXByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8vYWxzYS1kZXZlbAo=