From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Shevchenko, Andriy" Subject: Re: [PATCH] dt: add helper function to read u8 & u16 variables & arrays Date: Tue, 20 Nov 2012 08:21:07 +0000 Message-ID: <1353399661.20110.4.camel@smile> References: <0ee5b74534a09d75c14b22c2d9330c4971ab30fb.1353386646.git.viresh.kumar@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <0ee5b74534a09d75c14b22c2d9330c4971ab30fb.1353386646.git.viresh.kumar@linaro.org> Content-Language: en-US Content-ID: Sender: linux-kernel-owner@vger.kernel.org To: Viresh Kumar Cc: "rob.herring@calxeda.com" , "grant.likely@secretlab.ca" , "spear-devel@list.st.com" , "devicetree-discuss@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" , "linaro-dev@lists.linaro.org" , "patches@linaro.org" , "swarren@wwwdotorg.org" List-Id: devicetree@vger.kernel.org T24gVHVlLCAyMDEyLTExLTIwIGF0IDEwOjE1ICswNTMwLCBWaXJlc2ggS3VtYXIgd3JvdGU6IA0K PiBUaGlzIGFkZHMgZm9sbG93aW5nIGhlbHBlciByb3V0aW5lczoNCj4gLSBvZl9wcm9wZXJ0eV9y ZWFkX3U4X2FycmF5KCkNCj4gLSBvZl9wcm9wZXJ0eV9yZWFkX3UxNl9hcnJheSgpDQo+IC0gb2Zf cHJvcGVydHlfcmVhZF91OCgpDQo+IC0gb2ZfcHJvcGVydHlfcmVhZF91MTYoKQ0KPiANCj4gVGhp cyBleHBlY3RzIGFycmF5cyBmcm9tIERUIHRvIGJlIHBhc3NlZCBhczoNCj4gLSB1OCBhcnJheToN Cj4gCXByb3BlcnR5ID0gL2JpdHMvIDggPDB4NTAgMHg2MCAweDcwPjsNCj4gLSB1MTYgYXJyYXk6 DQo+IAlwcm9wZXJ0eSA9IC9iaXRzLyAxNiA8MHg1MDAwIDB4NjAwMCAweDcwMDA+Ow0KPiANCj4g U2lnbmVkLW9mZi1ieTogVmlyZXNoIEt1bWFyIDx2aXJlc2gua3VtYXJAbGluYXJvLm9yZz4NCj4g LS0tDQo+IFYyLT5WMzoNCj4gLSBFeHBlY3QgdTggJiB1MTYgYXJyYXlzIHRvIGJlIHBhc3NlZCB1 c2luZzogL2JpdHMvIDggb3IgMTYNCj4gLSByZW1vdmUgY29tbW9uIG1hY3JvLCBhcyBub3QgbXVj aCBjb21tb24gbm93IDooDQoNCllvdSBjb3VsZCBhdCBsZWFzdCBjcmVhdGUgbWFjcm8gdG8gZG8g YSBwcmVjaGVjayBpZiB5b3Ugd2FudCB0by4NCg0KTGlrZSANCiNkZWZpbmUgQ0hFQ0tfUFJPUChw cm9wLCBzeiwgb3V0KQ0KDQp7DQppZiAoIXByb3ApIA0KCQlyZXR1cm4gLUVJTlZBTDsNCglpZiAo IXByb3AtPnZhbHVlKQ0KCQlyZXR1cm4gLUVOT0RBVEE7DQoJaWYgKChzeiAqIHNpemVvZigqb3V0 KSkgPiBwcm9wLT5sZW5ndGgpDQoJCXJldHVybiAtRU9WRVJGTE9XOw0KfQ0KDQpPZiBjb3Vyc2Ug eW91IGNhbiBkbyBldmVuIHJvYnVzdCBtYWNybyB0byBjb3ZlciB0eXBlcywgYnV0IEkgZG9uJ3Qg bGlrZQ0KdWdseSBtYWNyb3MgKGFzIEkgY2FuJ3Qgc2VlIGhvdyBpdCBjb3VsZCBiZSBzaGFwZWQg bmljZWx5KS4NCg0KPiAtIFRlc3RlZCBvbiBBUk0gcGxhdGZvcm0uDQo+IA0KDQo+IC0tLSBhL2Ry aXZlcnMvb2YvYmFzZS5jDQo+ICsrKyBiL2RyaXZlcnMvb2YvYmFzZS5jDQo+IEBAIC02NzEsMTIg KzY3MSw4OSBAQCBzdHJ1Y3QgZGV2aWNlX25vZGUgKm9mX2ZpbmRfbm9kZV9ieV9waGFuZGxlKHBo YW5kbGUgaGFuZGxlKQ0KPiAgRVhQT1JUX1NZTUJPTChvZl9maW5kX25vZGVfYnlfcGhhbmRsZSk7 DQo+ICANCj4gIC8qKg0KPiArICogb2ZfcHJvcGVydHlfcmVhZF91OF9hcnJheSAtIEZpbmQgYW5k IHJlYWQgYW4gYXJyYXkgb2YgdTggZnJvbSBhIHByb3BlcnR5Lg0KPiArICoNCj4gKyAqIEBucDoJ CWRldmljZSBub2RlIGZyb20gd2hpY2ggdGhlIHByb3BlcnR5IHZhbHVlIGlzIHRvIGJlIHJlYWQu DQo+ICsgKiBAcHJvcG5hbWU6CW5hbWUgb2YgdGhlIHByb3BlcnR5IHRvIGJlIHNlYXJjaGVkLg0K PiArICogQG91dF92YWx1ZToJcG9pbnRlciB0byByZXR1cm4gdmFsdWUsIG1vZGlmaWVkIG9ubHkg aWYgcmV0dXJuIHZhbHVlIGlzIDAuDQo+ICsgKiBAc3o6CQludW1iZXIgb2YgYXJyYXkgZWxlbWVu dHMgdG8gcmVhZA0KPiArICoNCj4gKyAqIFNlYXJjaCBmb3IgYSBwcm9wZXJ0eSBpbiBhIGRldmlj ZSBub2RlIGFuZCByZWFkIDgtYml0IHZhbHVlKHMpIGZyb20NCj4gKyAqIGl0LiBSZXR1cm5zIDAg b24gc3VjY2VzcywgLUVJTlZBTCBpZiB0aGUgcHJvcGVydHkgZG9lcyBub3QgZXhpc3QsDQo+ICsg KiAtRU5PREFUQSBpZiBwcm9wZXJ0eSBkb2VzIG5vdCBoYXZlIGEgdmFsdWUsIGFuZCAtRU9WRVJG TE9XIGlmIHRoZQ0KPiArICogcHJvcGVydHkgZGF0YSBpc24ndCBsYXJnZSBlbm91Z2guDQo+ICsg Kg0KPiArICogZHRzIGVudHJ5IG9mIGFycmF5IHNob3VsZCBiZSBsaWtlOg0KPiArICoJcHJvcGVy dHkgPSAvYml0cy8gOCA8MHg1MCAweDYwIDB4NzA+Ow0KPiArICoNCj4gKyAqIFRoZSBvdXRfdmFs dWUgaXMgbW9kaWZpZWQgb25seSBpZiBhIHZhbGlkIHU4IHZhbHVlIGNhbiBiZSBkZWNvZGVkLg0K PiArICovDQo+ICtpbnQgb2ZfcHJvcGVydHlfcmVhZF91OF9hcnJheShjb25zdCBzdHJ1Y3QgZGV2 aWNlX25vZGUgKm5wLA0KPiArCQkJY29uc3QgY2hhciAqcHJvcG5hbWUsIHU4ICpvdXRfdmFsdWVz LCBzaXplX3Qgc3opDQo+ICt7DQo+ICsJc3RydWN0IHByb3BlcnR5ICpwcm9wID0gb2ZfZmluZF9w cm9wZXJ0eShucCwgcHJvcG5hbWUsIE5VTEwpOw0KPiArCWNvbnN0IHU4ICp2YWw7DQo+ICsNCj4g KwlpZiAoIXByb3ApDQo+ICsJCXJldHVybiAtRUlOVkFMOw0KPiArCWlmICghcHJvcC0+dmFsdWUp DQo+ICsJCXJldHVybiAtRU5PREFUQTsNCj4gKwlpZiAoKHN6ICogc2l6ZW9mKCpvdXRfdmFsdWVz KSkgPiBwcm9wLT5sZW5ndGgpDQo+ICsJCXJldHVybiAtRU9WRVJGTE9XOw0KPiArDQo+ICsJdmFs ID0gcHJvcC0+dmFsdWU7DQo+ICsJd2hpbGUgKHN6LS0pDQo+ICsJCSpvdXRfdmFsdWVzKysgPSAq dmFsKys7DQo+ICsJcmV0dXJuIDA7DQo+ICt9DQo+ICtFWFBPUlRfU1lNQk9MX0dQTChvZl9wcm9w ZXJ0eV9yZWFkX3U4X2FycmF5KTsNCj4gKw0KPiArLyoqDQo+ICsgKiBvZl9wcm9wZXJ0eV9yZWFk X3UxNl9hcnJheSAtIEZpbmQgYW5kIHJlYWQgYW4gYXJyYXkgb2YgdTE2IGZyb20gYSBwcm9wZXJ0 eS4NCj4gKyAqDQo+ICsgKiBAbnA6CQlkZXZpY2Ugbm9kZSBmcm9tIHdoaWNoIHRoZSBwcm9wZXJ0 eSB2YWx1ZSBpcyB0byBiZSByZWFkLg0KPiArICogQHByb3BuYW1lOgluYW1lIG9mIHRoZSBwcm9w ZXJ0eSB0byBiZSBzZWFyY2hlZC4NCj4gKyAqIEBvdXRfdmFsdWU6CXBvaW50ZXIgdG8gcmV0dXJu IHZhbHVlLCBtb2RpZmllZCBvbmx5IGlmIHJldHVybiB2YWx1ZSBpcyAwLg0KPiArICogQHN6OgkJ bnVtYmVyIG9mIGFycmF5IGVsZW1lbnRzIHRvIHJlYWQNCj4gKyAqDQo+ICsgKiBTZWFyY2ggZm9y IGEgcHJvcGVydHkgaW4gYSBkZXZpY2Ugbm9kZSBhbmQgcmVhZCAxNi1iaXQgdmFsdWUocykgZnJv bQ0KPiArICogaXQuIFJldHVybnMgMCBvbiBzdWNjZXNzLCAtRUlOVkFMIGlmIHRoZSBwcm9wZXJ0 eSBkb2VzIG5vdCBleGlzdCwNCj4gKyAqIC1FTk9EQVRBIGlmIHByb3BlcnR5IGRvZXMgbm90IGhh dmUgYSB2YWx1ZSwgYW5kIC1FT1ZFUkZMT1cgaWYgdGhlDQo+ICsgKiBwcm9wZXJ0eSBkYXRhIGlz bid0IGxhcmdlIGVub3VnaC4NCj4gKyAqDQo+ICsgKiBkdHMgZW50cnkgb2YgYXJyYXkgc2hvdWxk IGJlIGxpa2U6DQo+ICsgKglwcm9wZXJ0eSA9IC9iaXRzLyAxNiA8MHg1MDAwIDB4NjAwMCAweDcw MDA+Ow0KPiArICoNCj4gKyAqIFRoZSBvdXRfdmFsdWUgaXMgbW9kaWZpZWQgb25seSBpZiBhIHZh bGlkIHUxNiB2YWx1ZSBjYW4gYmUgZGVjb2RlZC4NCj4gKyAqLw0KPiAraW50IG9mX3Byb3BlcnR5 X3JlYWRfdTE2X2FycmF5KGNvbnN0IHN0cnVjdCBkZXZpY2Vfbm9kZSAqbnAsDQo+ICsJCQljb25z dCBjaGFyICpwcm9wbmFtZSwgdTE2ICpvdXRfdmFsdWVzLCBzaXplX3Qgc3opDQo+ICt7DQo+ICsJ c3RydWN0IHByb3BlcnR5ICpwcm9wID0gb2ZfZmluZF9wcm9wZXJ0eShucCwgcHJvcG5hbWUsIE5V TEwpOw0KPiArCWNvbnN0IF9fYmUxNiAqdmFsOw0KPiArDQo+ICsJaWYgKCFwcm9wKQ0KPiArCQly ZXR1cm4gLUVJTlZBTDsNCj4gKwlpZiAoIXByb3AtPnZhbHVlKQ0KPiArCQlyZXR1cm4gLUVOT0RB VEE7DQo+ICsJaWYgKChzeiAqIHNpemVvZigqb3V0X3ZhbHVlcykpID4gcHJvcC0+bGVuZ3RoKQ0K PiArCQlyZXR1cm4gLUVPVkVSRkxPVzsNCj4gKw0KPiArCXZhbCA9IHByb3AtPnZhbHVlOw0KPiAr CXdoaWxlIChzei0tKQ0KPiArCQkqb3V0X3ZhbHVlcysrID0gYmUxNl90b19jcHVwKHZhbCsrKTsN Cj4gKwlyZXR1cm4gMDsNCj4gK30NCj4gK0VYUE9SVF9TWU1CT0xfR1BMKG9mX3Byb3BlcnR5X3Jl YWRfdTE2X2FycmF5KTsNCj4gKw0KPiArLyoqDQo+ICAgKiBvZl9wcm9wZXJ0eV9yZWFkX3UzMl9h cnJheSAtIEZpbmQgYW5kIHJlYWQgYW4gYXJyYXkgb2YgMzIgYml0IGludGVnZXJzDQo+ICAgKiBm cm9tIGEgcHJvcGVydHkuDQo+ICAgKg0KPiAgICogQG5wOgkJZGV2aWNlIG5vZGUgZnJvbSB3aGlj aCB0aGUgcHJvcGVydHkgdmFsdWUgaXMgdG8gYmUgcmVhZC4NCj4gICAqIEBwcm9wbmFtZToJbmFt ZSBvZiB0aGUgcHJvcGVydHkgdG8gYmUgc2VhcmNoZWQuDQo+ICAgKiBAb3V0X3ZhbHVlOglwb2lu dGVyIHRvIHJldHVybiB2YWx1ZSwgbW9kaWZpZWQgb25seSBpZiByZXR1cm4gdmFsdWUgaXMgMC4N Cj4gKyAqIEBzejoJCW51bWJlciBvZiBhcnJheSBlbGVtZW50cyB0byByZWFkDQo+ICAgKg0KPiAg ICogU2VhcmNoIGZvciBhIHByb3BlcnR5IGluIGEgZGV2aWNlIG5vZGUgYW5kIHJlYWQgMzItYml0 IHZhbHVlKHMpIGZyb20NCj4gICAqIGl0LiBSZXR1cm5zIDAgb24gc3VjY2VzcywgLUVJTlZBTCBp ZiB0aGUgcHJvcGVydHkgZG9lcyBub3QgZXhpc3QsDQoNCi0tIA0KQW5keSBTaGV2Y2hlbmtvIDxh bmRyaXkuc2hldmNoZW5rb0BpbnRlbC5jb20+DQpJbnRlbCBGaW5sYW5kIE95DQotLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0KSW50ZWwgRmlubGFuZCBPeQpSZWdpc3RlcmVkIEFkZHJlc3M6IFBMIDI4MSwgMDAxODEgSGVs c2lua2kgCkJ1c2luZXNzIElkZW50aXR5IENvZGU6IDAzNTc2MDYgLSA0IApEb21pY2lsZWQgaW4g SGVsc2lua2kgCgpUaGlzIGUtbWFpbCBhbmQgYW55IGF0dGFjaG1lbnRzIG1heSBjb250YWluIGNv bmZpZGVudGlhbCBtYXRlcmlhbCBmb3IKdGhlIHNvbGUgdXNlIG9mIHRoZSBpbnRlbmRlZCByZWNp cGllbnQocykuIEFueSByZXZpZXcgb3IgZGlzdHJpYnV0aW9uCmJ5IG90aGVycyBpcyBzdHJpY3Rs eSBwcm9oaWJpdGVkLiBJZiB5b3UgYXJlIG5vdCB0aGUgaW50ZW5kZWQKcmVjaXBpZW50LCBwbGVh c2UgY29udGFjdCB0aGUgc2VuZGVyIGFuZCBkZWxldGUgYWxsIGNvcGllcy4K