From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20BC2C282D8 for ; Wed, 30 Jan 2019 16:15:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3F8B20989 for ; Wed, 30 Jan 2019 16:15:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sweptlaser-com.20150623.gappssmtp.com header.i=@sweptlaser-com.20150623.gappssmtp.com header.b="N2WHyfGn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731821AbfA3QPC (ORCPT ); Wed, 30 Jan 2019 11:15:02 -0500 Received: from mail-it1-f194.google.com ([209.85.166.194]:51498 "EHLO mail-it1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731612AbfA3QPC (ORCPT ); Wed, 30 Jan 2019 11:15:02 -0500 Received: by mail-it1-f194.google.com with SMTP id w18so139383ite.1 for ; Wed, 30 Jan 2019 08:15:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sweptlaser-com.20150623.gappssmtp.com; s=20150623; h=from:to:subject:date:message-id:in-reply-to:references; bh=yrq93au3oJ2dDM7QTKg4qsC2yIDdT7nuUkBxd+KI7Ck=; b=N2WHyfGnz0FXfh9XYdxqt5P55gq8ixYlS5bBxzI18t56btVqdiw48LD8CamOF+xv/9 1UqOiiBSQGxByk/5Nn81AECQkzksMrwyH0m618LIbq6e7E3Vu35s+T2idZnWBZLPGUMY jIZ9+E8dxoHkxq3g3OisSXCursJLvhnJjI5OfS+9QnnbgiOa7DEtGzSqNxvxEwLYgzPx XEklNAcaot9HPnNKRqxDJuAonKtuB82ySmJFMq1xqm/tOjfihFlg/N/CSZ3zW4n6w+nM i4+Ac61u/octZWczU6UK9CFSA4XssjXP1P95mzgetrAv/RTrE7iPGrg2y37R18r9jpIa RdRQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=yrq93au3oJ2dDM7QTKg4qsC2yIDdT7nuUkBxd+KI7Ck=; b=VoHMsydjQ2GQ+sA0Rz07sQpSoEFmIP4RfATWQhmLgxjyoveHbAb16/UbpNtRStZqsh /HEL1IQY93JUu5JcV096cS0tWrPupYx6JQ+ga6c1c0V2nZRKWZa6zR4UO3KWVz0SEmcy YSi9CqZ6aeZCfajBF8qqCWpImnxtCzWbHC5S4aCLeLALXk78bWos8YU7ZpFSPZPTv4dV 0wOj34Vx6JB4BFyVBSjVSArOOaJVFCjhMEgyPT0pqlGIBdhDo8+OqCEwIA5Xejl2WH9s zvG3MVQsDeGpfuAeCU8Ve+E4tdNKqL0vj23rE2BvyJbhJIHJywQJoR0j+vXSMGJ9MGYY BXsA== X-Gm-Message-State: AJcUukcMVR3BTmr8K8ffbJeVF2R91fh3KVQhe3UOcdFJenLRAfIWTLkA o8OfyUfmsfQzzoshEHhqnojhUQ== X-Google-Smtp-Source: ALg8bN7tQLMuCew9n4iSOOWyqdnYoMWjvEC1dFlpH33Rr5cpmNErLq1pd62L//HM/hM5OHH04pKLEQ== X-Received: by 2002:a05:660c:3c7:: with SMTP id c7mr13602440itl.131.1548864900873; Wed, 30 Jan 2019 08:15:00 -0800 (PST) Received: from yngvi.hq.sweptlaser.com ([63.147.146.226]) by smtp.googlemail.com with ESMTPSA id 15sm838678iog.59.2019.01.30.08.14.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 30 Jan 2019 08:15:00 -0800 (PST) From: Jeremy Gebben To: Jean Delvare , Guenter Roeck , Jonathan Corbet , linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH resend 1/3] hwmon: (lm85) remove freq_map size hardcodes Date: Wed, 30 Jan 2019 09:14:45 -0700 Message-Id: <20190130161447.19946-1-jgebben@sweptlaser.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190129212920.27921-1-jgebben@sweptlaser.com> References: <20190129212920.27921-1-jgebben@sweptlaser.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Allow support for chips that support more than 8 frequencies. The size still must be a power of two. Signed-off-by: Jeremy Gebben --- drivers/hwmon/lm85.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index 0a325878e8f5..48f59667a88c 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -198,13 +198,13 @@ static int RANGE_TO_REG(long range) #define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f] /* These are the PWM frequency encodings */ -static const int lm85_freq_map[8] = { /* 1 Hz */ +static const int lm85_freq_map[] = { /* 1 Hz */ 10, 15, 23, 30, 38, 47, 61, 94 }; -static const int adm1027_freq_map[8] = { /* 1 Hz */ + +static const int adm1027_freq_map[] = { /* 1 Hz */ 11, 15, 22, 29, 35, 44, 59, 88 }; -#define FREQ_MAP_LEN 8 static int FREQ_TO_REG(const int *map, unsigned int map_size, unsigned long freq) @@ -212,9 +212,9 @@ static int FREQ_TO_REG(const int *map, return find_closest(freq, map, map_size); } -static int FREQ_FROM_REG(const int *map, u8 reg) +static int FREQ_FROM_REG(const int *map, unsigned int map_size, u8 reg) { - return map[reg & 0x07]; + return map[reg & (map_size - 1)]; } /* @@ -296,6 +296,8 @@ struct lm85_data { struct i2c_client *client; const struct attribute_group *groups[6]; const int *freq_map; + unsigned int freq_map_mask; + enum chips type; bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */ @@ -514,7 +516,7 @@ static struct lm85_data *lm85_update_device(struct device *dev) data->autofan[i].config = lm85_read_value(client, LM85_REG_AFAN_CONFIG(i)); val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i)); - data->pwm_freq[i] = val & 0x07; + data->pwm_freq[i] = val & data->freq_map_mask; data->zone[i].range = val >> 4; data->autofan[i].min_pwm = lm85_read_value(client, LM85_REG_AFAN_MINPWM(i)); @@ -791,7 +793,8 @@ static ssize_t show_pwm_freq(struct device *dev, if (IS_ADT7468_HFPWM(data)) freq = 22500; else - freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]); + freq = FREQ_FROM_REG(data->freq_map, data->freq_map_mask + 1, + data->pwm_freq[nr]); return sprintf(buf, "%d\n", freq); } @@ -820,7 +823,7 @@ static ssize_t set_pwm_freq(struct device *dev, lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5); } else { /* Low freq. mode */ data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, - FREQ_MAP_LEN, val); + data->freq_map_mask + 1, val); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), (data->zone[nr].range << 4) | data->pwm_freq[nr]); @@ -1196,7 +1199,7 @@ static ssize_t set_temp_auto_temp_min(struct device *dev, TEMP_FROM_REG(data->zone[nr].limit)); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), ((data->zone[nr].range & 0x0f) << 4) - | (data->pwm_freq[nr] & 0x07)); + | data->pwm_freq[nr]); mutex_unlock(&data->update_lock); return count; @@ -1232,7 +1235,7 @@ static ssize_t set_temp_auto_temp_max(struct device *dev, val - min); lm85_write_value(client, LM85_REG_AFAN_RANGE(nr), ((data->zone[nr].range & 0x0f) << 4) - | (data->pwm_freq[nr] & 0x07)); + | data->pwm_freq[nr]); mutex_unlock(&data->update_lock); return count; } @@ -1569,9 +1572,11 @@ static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id) case emc6d103: case emc6d103s: data->freq_map = adm1027_freq_map; + data->freq_map_mask = ARRAY_SIZE(adm1027_freq_map) - 1; break; default: data->freq_map = lm85_freq_map; + data->freq_map_mask = ARRAY_SIZE(lm85_freq_map) - 1; } /* Set the VRM version */ -- 2.17.1