From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sam Shih Subject: [PATCH v2 1/1] pwm: mediatek: add longer period support Date: Tue, 3 Mar 2020 18:19:15 +0800 Message-ID: <1583230755-25986-2-git-send-email-sam.shih@mediatek.com> References: <1583230755-25986-1-git-send-email-sam.shih@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1583230755-25986-1-git-send-email-sam.shih@mediatek.com> Sender: linux-kernel-owner@vger.kernel.org To: Thierry Reding , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Matthias Brugger Cc: John Crispin , linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Sam Shih List-Id: linux-pwm@vger.kernel.org VGhlIHB3bSBjbG9jayBzb3VyY2UgY291bGQgYmUgZGl2aWRlZCBieSAxNjI1IHdpdGggUFdNX0NP Tg0KQklUKDMpIHNldHRpbmcgaW4gbWVkaWF0ZWsgaGFyZHdhcmUuDQoNClRoaXMgcGF0Y2ggYWRk IHN1cHBvcnQgZm9yIGxvbmdlciBwd20gcGVyaW9kIGNvbmZpZ3VyYXRpb24sDQp3aGljaCBhbGxv d2luZyBibGlua2luZyBMRURzIHZpYSBwd20gaW50ZXJmYWNlLg0KDQpTaWduZWQtb2ZmLWJ5OiBT YW0gU2hpaCA8c2FtLnNoaWhAbWVkaWF0ZWsuY29tPg0KLS0tDQogZHJpdmVycy9wd20vcHdtLW1l ZGlhdGVrLmMgfCAzNCArKysrKysrKysrKysrKysrKysrKysrKysrKysrKystLS0tDQogMSBmaWxl IGNoYW5nZWQsIDMwIGluc2VydGlvbnMoKyksIDQgZGVsZXRpb25zKC0pDQoNCmRpZmYgLS1naXQg YS9kcml2ZXJzL3B3bS9wd20tbWVkaWF0ZWsuYyBiL2RyaXZlcnMvcHdtL3B3bS1tZWRpYXRlay5j DQppbmRleCBiOTRlMGQwOWMzMDAuLmM2NGVjZmY2YzU1MCAxMDA2NDQNCi0tLSBhL2RyaXZlcnMv cHdtL3B3bS1tZWRpYXRlay5jDQorKysgYi9kcml2ZXJzL3B3bS9wd20tbWVkaWF0ZWsuYw0KQEAg LTEyMSw4ICsxMjEsMTEgQEAgc3RhdGljIGludCBwd21fbWVkaWF0ZWtfY29uZmlnKHN0cnVjdCBw d21fY2hpcCAqY2hpcCwgc3RydWN0IHB3bV9kZXZpY2UgKnB3bSwNCiAJCQkgICAgICAgaW50IGR1 dHlfbnMsIGludCBwZXJpb2RfbnMpDQogew0KIAlzdHJ1Y3QgcHdtX21lZGlhdGVrX2NoaXAgKnBj ID0gdG9fcHdtX21lZGlhdGVrX2NoaXAoY2hpcCk7DQotCXUzMiBjbGtkaXYgPSAwLCBjbnRfcGVy aW9kLCBjbnRfZHV0eSwgcmVnX3dpZHRoID0gUFdNRFdJRFRILA0KLQkgICAgcmVnX3RocmVzID0g UFdNVEhSRVM7DQorCS8qIFRoZSBzb3VyY2UgY2xvY2sgaXMgZGl2aWRlZCBieSAyXmNsa2RpdiBv ciBpZmYgdGhlIGNsa3NlbCBiaXQNCisJICogaXMgc2V0IGJ5ICgyXmNsa2RpdioxNjI1KQ0KKwkg Ki8NCisJdTMyIGNsa2RpdiA9IDAsIGNsa3NlbCA9IDAsIGNudF9wZXJpb2QsIGNudF9kdXR5LA0K KwkgICAgcmVnX3dpZHRoID0gUFdNRFdJRFRILCByZWdfdGhyZXMgPSBQV01USFJFUzsNCiAJdTY0 IHJlc29sdXRpb247DQogCWludCByZXQ7DQogDQpAQCAtMTMzLDEyICsxMzYsMzAgQEAgc3RhdGlj IGludCBwd21fbWVkaWF0ZWtfY29uZmlnKHN0cnVjdCBwd21fY2hpcCAqY2hpcCwgc3RydWN0IHB3 bV9kZXZpY2UgKnB3bSwNCiANCiAJLyogVXNpbmcgcmVzb2x1dGlvbiBpbiBwaWNvc2Vjb25kIGdl dHMgYWNjdXJhY3kgaGlnaGVyICovDQogCXJlc29sdXRpb24gPSAodTY0KU5TRUNfUEVSX1NFQyAq IDEwMDA7DQorCS8qIENhbGN1bGF0ZSByZXNvbHV0aW9uIGJhc2VkIG9uIGN1cnJlbnQgY2xvY2sg ZnJlcXVlbmN5ICovDQogCWRvX2RpdihyZXNvbHV0aW9uLCBjbGtfZ2V0X3JhdGUocGMtPmNsa19w d21zW3B3bS0+aHdwd21dKSk7DQotDQorCS8qIFVzaW5nIHJlc29sdXRpb24gdG8gY2FsY3VsYXRl IGNudF9wZXJpb2Qgd2hpY2ggcmVwcmVzZW50cw0KKwkgKiB0aGUgZWZmZWN0aXZlIHJhbmdlIG9m IHRoZSBQV00gcGVyaW9kIGNvdW50ZXINCisJICovDQogCWNudF9wZXJpb2QgPSBESVZfUk9VTkRf Q0xPU0VTVF9VTEwoKHU2NClwZXJpb2RfbnMgKiAxMDAwLCByZXNvbHV0aW9uKTsNCiAJd2hpbGUg KGNudF9wZXJpb2QgPiA4MTkxKSB7DQorCQkvKiBVc2luZyBjbGtkaXYgdG8gcmVkdWNlIGNsb2Nr IGZyZXF1ZW5jeSBhbmQgY2FsY3VsYXRlDQorCQkgKiBuZXcgcmVzb2x1dGlvbiBiYXNlZCBvbiBu ZXcgY2xvY2sgc3BlZWQNCisJCSAqLw0KIAkJcmVzb2x1dGlvbiAqPSAyOw0KIAkJY2xrZGl2Kys7 DQorCQlpZiAoY2xrZGl2ID4gUFdNX0NMS19ESVZfTUFYICYmICFjbGtzZWwpIHsNCisJCQkvKiBV c2luZyBjbGtzZWwgdG8gZGl2aWRlIHRoZSBwd20gc291cmNlIGNsb2NrIGJ5DQorCQkJICogYW4g YWRkaXRpb25hbCAxNjI1LCBhbmQgcmVjYWxjdWxhdGUgbmV3IGNsa2Rpdg0KKwkJCSAqIGFuZCBy ZXNvbHV0aW9uDQorCQkJICovDQorCQkJY2xrc2VsID0gMTsNCisJCQljbGtkaXYgPSAwOw0KKwkJ CXJlc29sdXRpb24gPSAodTY0KU5TRUNfUEVSX1NFQyAqIDEwMDAgKiAxNjI1Ow0KKwkJCWRvX2Rp dihyZXNvbHV0aW9uLA0KKwkJCQljbGtfZ2V0X3JhdGUocGMtPmNsa19wd21zW3B3bS0+aHdwd21d KSk7DQorCQl9DQorCQkvKiBDYWxjdWxhdGUgY250X3BlcmlvZCBiYXNlZCBvbiByZXNvbHV0aW9u ICovDQogCQljbnRfcGVyaW9kID0gRElWX1JPVU5EX0NMT1NFU1RfVUxMKCh1NjQpcGVyaW9kX25z ICogMTAwMCwNCiAJCQkJCQkgICByZXNvbHV0aW9uKTsNCiAJfQ0KQEAgLTE1OCw4ICsxNzksMTMg QEAgc3RhdGljIGludCBwd21fbWVkaWF0ZWtfY29uZmlnKHN0cnVjdCBwd21fY2hpcCAqY2hpcCwg c3RydWN0IHB3bV9kZXZpY2UgKnB3bSwNCiAJCXJlZ190aHJlcyA9IFBXTTQ1VEhSRVNfRklYVVA7 DQogCX0NCiANCisJLyogQ2FsY3VsYXRlIGNudF9kdXR5IGJhc2VkIG9uIHJlc29sdXRpb24gKi8N CiAJY250X2R1dHkgPSBESVZfUk9VTkRfQ0xPU0VTVF9VTEwoKHU2NClkdXR5X25zICogMTAwMCwg cmVzb2x1dGlvbik7DQotCXB3bV9tZWRpYXRla193cml0ZWwocGMsIHB3bS0+aHdwd20sIFBXTUNP TiwgQklUKDE1KSB8IGNsa2Rpdik7DQorCWlmIChjbGtzZWwpDQorCQlwd21fbWVkaWF0ZWtfd3Jp dGVsKHBjLCBwd20tPmh3cHdtLCBQV01DT04sIEJJVCgxNSkgfCBCSVQoMykgfA0KKwkJCQkgICAg Y2xrZGl2KTsNCisJZWxzZQ0KKwkJcHdtX21lZGlhdGVrX3dyaXRlbChwYywgcHdtLT5od3B3bSwg UFdNQ09OLCBCSVQoMTUpIHwgY2xrZGl2KTsNCiAJcHdtX21lZGlhdGVrX3dyaXRlbChwYywgcHdt LT5od3B3bSwgcmVnX3dpZHRoLCBjbnRfcGVyaW9kKTsNCiAJcHdtX21lZGlhdGVrX3dyaXRlbChw YywgcHdtLT5od3B3bSwgcmVnX3RocmVzLCBjbnRfZHV0eSk7DQogDQotLSANCjIuMTcuMQ0K