From patchwork Mon Oct 19 11:58:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Lee X-Patchwork-Id: 286770 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 22069C433DF for ; Mon, 19 Oct 2020 11:58:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B450A22283 for ; Mon, 19 Oct 2020 11:58:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725799AbgJSL6v (ORCPT ); Mon, 19 Oct 2020 07:58:51 -0400 Received: from smtp2207-205.mail.aliyun.com ([121.197.207.205]:36308 "EHLO smtp2207-205.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726087AbgJSL6v (ORCPT ); Mon, 19 Oct 2020 07:58:51 -0400 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07483579|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_system_inform|0.0805089-0.00178873-0.917702; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047188; MF=frank@allwinnertech.com; NM=1; PH=DS; RN=11; RT=11; SR=0; TI=SMTPD_---.IlUILxe_1603108718; Received: from allwinnertech.com(mailfrom:frank@allwinnertech.com fp:SMTPD_---.IlUILxe_1603108718) by smtp.aliyun-inc.com(10.147.41.120); Mon, 19 Oct 2020 19:58:43 +0800 From: Frank Lee To: anarsoul@gmail.com, tiny.windzz@gmail.com, rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org, mripard@kernel.org, wens@csie.org Cc: linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yangtao Li Subject: [PATCH] thermal: sun8i: Use bitmap API instead of open code Date: Mon, 19 Oct 2020 19:58:36 +0800 Message-Id: <20201019115836.13982-1-frank@allwinnertech.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Yangtao Li Thw bitmap_* API is the standard way to access data in the bitfield. Signed-off-by: Yangtao Li --- drivers/thermal/sun8i_thermal.c | 35 +++++++++++++++++---------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c index f8b13071a6f4..f2e4a4f18101 100644 --- a/drivers/thermal/sun8i_thermal.c +++ b/drivers/thermal/sun8i_thermal.c @@ -8,6 +8,7 @@ * Based on the work of Josef Gajdusek */ +#include #include #include #include @@ -74,7 +75,7 @@ struct ths_thermal_chip { int (*calibrate)(struct ths_device *tmdev, u16 *caldata, int callen); int (*init)(struct ths_device *tmdev); - int (*irq_ack)(struct ths_device *tmdev); + void (*irq_ack)(struct ths_device *tmdev); int (*calc_temp)(struct ths_device *tmdev, int id, int reg); }; @@ -82,6 +83,7 @@ struct ths_thermal_chip { struct ths_device { const struct ths_thermal_chip *chip; struct device *dev; + DECLARE_BITMAP(irq_bitmap, MAX_SENSOR_NUM); struct regmap *regmap; struct reset_control *reset; struct clk *bus_clk; @@ -146,9 +148,11 @@ static const struct regmap_config config = { .max_register = 0xfc, }; -static int sun8i_h3_irq_ack(struct ths_device *tmdev) +static void sun8i_h3_irq_ack(struct ths_device *tmdev) { - int i, state, ret = 0; + int i, state; + + bitmap_zero(tmdev->irq_bitmap, tmdev->chip->sensor_num); regmap_read(tmdev->regmap, SUN8I_THS_IS, &state); @@ -156,16 +160,16 @@ static int sun8i_h3_irq_ack(struct ths_device *tmdev) if (state & SUN8I_THS_DATA_IRQ_STS(i)) { regmap_write(tmdev->regmap, SUN8I_THS_IS, SUN8I_THS_DATA_IRQ_STS(i)); - ret |= BIT(i); + bitmap_set(tmdev->irq_bitmap, i, 1); } } - - return ret; } -static int sun50i_h6_irq_ack(struct ths_device *tmdev) +static void sun50i_h6_irq_ack(struct ths_device *tmdev) { - int i, state, ret = 0; + int i, state; + + bitmap_zero(tmdev->irq_bitmap, tmdev->chip->sensor_num); regmap_read(tmdev->regmap, SUN50I_H6_THS_DIS, &state); @@ -173,24 +177,21 @@ static int sun50i_h6_irq_ack(struct ths_device *tmdev) if (state & SUN50I_H6_THS_DATA_IRQ_STS(i)) { regmap_write(tmdev->regmap, SUN50I_H6_THS_DIS, SUN50I_H6_THS_DATA_IRQ_STS(i)); - ret |= BIT(i); + bitmap_set(tmdev->irq_bitmap, i, 1); } } - - return ret; } static irqreturn_t sun8i_irq_thread(int irq, void *data) { struct ths_device *tmdev = data; - int i, state; + int i; - state = tmdev->chip->irq_ack(tmdev); + tmdev->chip->irq_ack(tmdev); - for (i = 0; i < tmdev->chip->sensor_num; i++) { - if (state & BIT(i)) - thermal_zone_device_update(tmdev->sensor[i].tzd, - THERMAL_EVENT_UNSPECIFIED); + for_each_set_bit(i, tmdev->irq_bitmap, tmdev->chip->sensor_num) { + thermal_zone_device_update(tmdev->sensor[i].tzd, + THERMAL_EVENT_UNSPECIFIED); } return IRQ_HANDLED;