From patchwork Tue Sep 5 18:42:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13374888 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 720BCCA0FF7 for ; Tue, 5 Sep 2023 18:56:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231578AbjIES4m (ORCPT ); Tue, 5 Sep 2023 14:56:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231316AbjIES4l (ORCPT ); Tue, 5 Sep 2023 14:56:41 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 3A335CDE; Tue, 5 Sep 2023 11:56:11 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.02,229,1688396400"; d="scan'208";a="175109482" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 06 Sep 2023 03:43:00 +0900 Received: from localhost.localdomain (unknown [10.226.92.194]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id EBB3840029BE; Wed, 6 Sep 2023 03:42:57 +0900 (JST) From: Biju Das To: Eric Tremblay , Jean Delvare , Guenter Roeck Cc: Biju Das , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, Biju Das , Andy Shevchenko Subject: [PATCH v4 1/2] hwmon: tmp513: Add max_channels variable to struct tmp51x_data Date: Tue, 5 Sep 2023 19:42:51 +0100 Message-Id: <20230905184252.222742-2-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230905184252.222742-1-biju.das.jz@bp.renesas.com> References: <20230905184252.222742-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org The tmp512 chip has 3 channels whereas tmp513 has 4 channels. Avoid using tmp51x_ids for this HW difference by replacing OF/ID table data with maximum channels supported by the device. Replace id->max_channels variable from struct tmp51x_data and drop the macros TMP51{2,3}_TEMP_CONFIG_DEFAULT as it can be derived from the macro TMP51X_TEMP_CONFIG_DEFAULT and update the logic in tmp51x_is_visible(), tmp51x_read_properties() and tmp51x_init() using max_channels. While at it, drop enum tmp51x_ids as there is no user and remove trailing comma in the terminator entry for OF table. Signed-off-by: Biju Das --- v3->v4: * Updated commit description * Updated macros TMP51X_TEMP_CONFIG_DEFAULT and TMP51X_TEMP_CHANNEL_MASK. * Removed trailing comma in the terminator entry for OF table. v2->v3: * Updated the macro TMP51X_TEMP_CONFIG_DEFAULT by adding bit definitions. * Dropped unused macros TMP51{2,3}_TEMP_CONFIG_DEFAULT. * Avoided Yoda style logic. * Replaced OF/ID data from tmp51x_ids->max_channels v2: * New patch. --- drivers/hwmon/tmp513.c | 51 +++++++++++++++++++++--------------------- 1 file changed, 25 insertions(+), 26 deletions(-) diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c index 9a180b1030c9..7c531fa4453e 100644 --- a/drivers/hwmon/tmp513.c +++ b/drivers/hwmon/tmp513.c @@ -19,6 +19,7 @@ * the Free Software Foundation; version 2 of the License. */ +#include #include #include #include @@ -73,9 +74,6 @@ #define TMP51X_PGA_DEFAULT 8 #define TMP51X_MAX_REGISTER_ADDR 0xFF -#define TMP512_TEMP_CONFIG_DEFAULT 0xBF80 -#define TMP513_TEMP_CONFIG_DEFAULT 0xFF80 - // Mask and shift #define CURRENT_SENSE_VOLTAGE_320_MASK 0x1800 #define CURRENT_SENSE_VOLTAGE_160_MASK 0x1000 @@ -113,6 +111,18 @@ #define MAX_TEMP_HYST 127500 +#define TMP512_MAX_CHANNELS 3 +#define TMP513_MAX_CHANNELS 4 + +#define TMP51X_TEMP_CONFIG_CONV_RATE FIELD_PREP(GENMASK(9, 7), 0x7) +#define TMP51X_TEMP_CONFIG_RC BIT(10) +#define TMP51X_TEMP_CHANNEL_MASK(n) FIELD_PREP(GENMASK(14, 11), \ + GENMASK((n) - 1, 0)) +#define TMP51X_TEMP_CONFIG_CONT BIT(15) +#define TMP51X_TEMP_CONFIG_DEFAULT(n) (TMP51X_TEMP_CONFIG_CONT | \ + TMP51X_TEMP_CHANNEL_MASK(n) | \ + TMP51X_TEMP_CONFIG_CONV_RATE | TMP51X_TEMP_CONFIG_RC) + static const u8 TMP51X_TEMP_INPUT[4] = { TMP51X_LOCAL_TEMP_RESULT, TMP51X_REMOTE_TEMP_RESULT_1, @@ -152,10 +162,6 @@ static struct regmap_config tmp51x_regmap_config = { .max_register = TMP51X_MAX_REGISTER_ADDR, }; -enum tmp51x_ids { - tmp512, tmp513 -}; - struct tmp51x_data { u16 shunt_config; u16 pga_gain; @@ -169,7 +175,7 @@ struct tmp51x_data { u32 curr_lsb_ua; u32 pwr_lsb_uw; - enum tmp51x_ids id; + u8 max_channels; struct regmap *regmap; }; @@ -434,7 +440,7 @@ static umode_t tmp51x_is_visible(const void *_data, switch (type) { case hwmon_temp: - if (data->id == tmp512 && channel == 3) + if (channel >= data->max_channels) return 0; switch (attr) { case hwmon_temp_input: @@ -585,7 +591,7 @@ static int tmp51x_init(struct tmp51x_data *data) if (ret < 0) return ret; - if (data->id == tmp513) { + if (data->max_channels == TMP513_MAX_CHANNELS) { ret = regmap_write(data->regmap, TMP513_N_FACTOR_3, data->nfactor[2] << 8); if (ret < 0) @@ -601,22 +607,16 @@ static int tmp51x_init(struct tmp51x_data *data) } static const struct i2c_device_id tmp51x_id[] = { - { "tmp512", tmp512 }, - { "tmp513", tmp513 }, + { "tmp512", TMP512_MAX_CHANNELS }, + { "tmp513", TMP513_MAX_CHANNELS }, { } }; MODULE_DEVICE_TABLE(i2c, tmp51x_id); static const struct of_device_id tmp51x_of_match[] = { - { - .compatible = "ti,tmp512", - .data = (void *)tmp512 - }, - { - .compatible = "ti,tmp513", - .data = (void *)tmp513 - }, - { }, + { .compatible = "ti,tmp512", .data = (void *)TMP512_MAX_CHANNELS }, + { .compatible = "ti,tmp513", .data = (void *)TMP513_MAX_CHANNELS }, + { } }; MODULE_DEVICE_TABLE(of, tmp51x_of_match); @@ -674,9 +674,9 @@ static int tmp51x_read_properties(struct device *dev, struct tmp51x_data *data) return ret; ret = device_property_read_u32_array(dev, "ti,nfactor", nfactor, - (data->id == tmp513) ? 3 : 2); + data->max_channels - 1); if (ret >= 0) - memcpy(data->nfactor, nfactor, (data->id == tmp513) ? 3 : 2); + memcpy(data->nfactor, nfactor, data->max_channels - 1); // Check if shunt value is compatible with pga-gain if (data->shunt_uohms > data->pga_gain * 40 * 1000 * 1000) { @@ -698,8 +698,7 @@ static void tmp51x_use_default(struct tmp51x_data *data) static int tmp51x_configure(struct device *dev, struct tmp51x_data *data) { data->shunt_config = TMP51X_SHUNT_CONFIG_DEFAULT; - data->temp_config = (data->id == tmp513) ? - TMP513_TEMP_CONFIG_DEFAULT : TMP512_TEMP_CONFIG_DEFAULT; + data->temp_config = TMP51X_TEMP_CONFIG_DEFAULT(data->max_channels); if (dev->of_node) return tmp51x_read_properties(dev, data); @@ -720,7 +719,7 @@ static int tmp51x_probe(struct i2c_client *client) if (!data) return -ENOMEM; - data->id = (uintptr_t)i2c_get_match_data(client); + data->max_channels = (uintptr_t)i2c_get_match_data(client); ret = tmp51x_configure(dev, data); if (ret < 0) { From patchwork Tue Sep 5 18:42:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13374890 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36BF8CA0FF7 for ; Tue, 5 Sep 2023 18:57:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232277AbjIES5C (ORCPT ); Tue, 5 Sep 2023 14:57:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231944AbjIES47 (ORCPT ); Tue, 5 Sep 2023 14:56:59 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D8ECE1AB; Tue, 5 Sep 2023 11:56:31 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.02,229,1688396400"; d="scan'208";a="175109488" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 06 Sep 2023 03:43:03 +0900 Received: from localhost.localdomain (unknown [10.226.92.194]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 11D104005E2C; Wed, 6 Sep 2023 03:43:00 +0900 (JST) From: Biju Das To: Eric Tremblay , Jean Delvare , Guenter Roeck Cc: Biju Das , linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, Biju Das , Andy Shevchenko , Geert Uytterhoeven Subject: [PATCH v4 2/2] hwmon: tmp513: Simplify tmp51x_read_properties() Date: Tue, 5 Sep 2023 19:42:52 +0100 Message-Id: <20230905184252.222742-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230905184252.222742-1-biju.das.jz@bp.renesas.com> References: <20230905184252.222742-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Simplify tmp51x_read_properties() by replacing 'nfactor' ->'data->nfactor' in device_property_read_u32_array() and drop the local variable as it is unused. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Reviewed-by: Andy Shevchenko --- v3->v4: * Added Rb tag from Geert and Andy. v3: * New patch. --- drivers/hwmon/tmp513.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c index 7c531fa4453e..43f4c96ecf3d 100644 --- a/drivers/hwmon/tmp513.c +++ b/drivers/hwmon/tmp513.c @@ -655,7 +655,6 @@ static int tmp51x_pga_gain_to_reg(struct device *dev, struct tmp51x_data *data) static int tmp51x_read_properties(struct device *dev, struct tmp51x_data *data) { int ret; - u32 nfactor[3]; u32 val; ret = device_property_read_u32(dev, "shunt-resistor-micro-ohms", &val); @@ -673,10 +672,8 @@ static int tmp51x_read_properties(struct device *dev, struct tmp51x_data *data) if (ret < 0) return ret; - ret = device_property_read_u32_array(dev, "ti,nfactor", nfactor, - data->max_channels - 1); - if (ret >= 0) - memcpy(data->nfactor, nfactor, data->max_channels - 1); + device_property_read_u32_array(dev, "ti,nfactor", data->nfactor, + data->max_channels - 1); // Check if shunt value is compatible with pga-gain if (data->shunt_uohms > data->pga_gain * 40 * 1000 * 1000) {