Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754413AbbFSI2V (ORCPT ); Fri, 19 Jun 2015 04:28:21 -0400 Received: from mail-ig0-f171.google.com ([209.85.213.171]:33817 "EHLO mail-ig0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753089AbbFSI2M (ORCPT ); Fri, 19 Jun 2015 04:28:12 -0400 MIME-Version: 1.0 Reply-To: cw00.choi@samsung.com In-Reply-To: <20150619081737.GS32730@opensource.wolfsonmicro.com> References: <1434638631-16451-1-git-send-email-ckeepax@opensource.wolfsonmicro.com> <1434638631-16451-3-git-send-email-ckeepax@opensource.wolfsonmicro.com> <20150619081737.GS32730@opensource.wolfsonmicro.com> Date: Fri, 19 Jun 2015 17:28:11 +0900 Message-ID: Subject: Re: [PATCH v2 2/5] extcon: arizona: Add basic microphone detection DT/ACPI bindings From: Chanwoo Choi To: Charles Keepax Cc: Lee Jones , "myungjoo.ham@samsung.com" , Samuel Ortiz , devicetree , linux-kernel , patches@opensource.wolfsonmicro.com Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1837 Lines: 56 On Fri, Jun 19, 2015 at 5:17 PM, Charles Keepax wrote: > On Fri, Jun 19, 2015 at 11:25:57AM +0900, Chanwoo Choi wrote: >> Hi Charles, >> >> On Thu, Jun 18, 2015 at 11:43 PM, Charles Keepax >> wrote: >> > This patch adds bindings for the basic microphone detection platform >> > data. >> > >> > Signed-off-by: Charles Keepax >> > --- >> > + dbtime = 0; >> > + device_property_read_u32(arizona->dev, "wlf,micd-dbtime", &dbtime); >> > + switch (dbtime) { >> > + case 2: >> >> I'd like you to define the constant variable for specific integer >> value to improve the readability. >> e.g., >> >> #define MICD_DBTIME_XXX 2 >> #define MICD_DBTIME_XXX 4 >> >> > + pdata->micd_dbtime = 0x10000; >> >> Also, you better to define the constant variable for "0x10000" to >> improbe readability in the include/linux/mfd/arizona.h. If you just >> use the hex value, the other developer cannot analyze the meaning of >> "0x10000". >> >> > + break; >> > + case 4: >> >> ditto. >> > > I am not sure these two really warrant a define the number in DT > indicates the number of debounces to perform. > > #define MICD_DBTIME_TWO 2 No. I mean that you should define the appropriate name of definition to indicate the meaning of 2 or 4. Just not 2 -> TWO. 2 is 2 second? or 2 is milli-second? or Is there any other meaning? I can never know the meaning of '2' without any description and any proper name of definition. Thanks, Chanwoo CHOi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/