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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6ED98C001E0 for ; Thu, 6 Jul 2023 15:38:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233798AbjGFPiv (ORCPT ); Thu, 6 Jul 2023 11:38:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233539AbjGFPip (ORCPT ); Thu, 6 Jul 2023 11:38:45 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7C1A01BEA; Thu, 6 Jul 2023 08:38:43 -0700 (PDT) Received: from notapiano.myfiosgateway.com (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madras.collabora.co.uk (Postfix) with ESMTPSA id D68256606FDB; Thu, 6 Jul 2023 16:38:38 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1688657922; bh=Meb9/4Kmg9q/ka2O8MPM7s6SQhpMPo7uYZzBWndz+9A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KXyfqnA1mYaglla6wEzizqUkepj7HJlGs1V8RL8tY7mnOs6jmNOkOXzfMs5bR7FmG bzwy3lFJ1AyC6XqO45SNHVCisYuN6HDUFn/tfePvxIDm+HPl8UOBsV1RtYvXnEtxWj Meb7Rs25YZoQszTCiNBB1h/mS0GnLgZ6Q93PZiyJOO4aMaepHTP8RcjiOC1LKXYMSc rM2GLEACx/UzcYQS1bD7QM+jFJYA/m6D0MNwUpgQ3L8H5QrtZ4POU+zXEaOydzn6Ki JHTmkekXr/z5tAxdObqpoE9bgkoZWYwyFYqf3Mt0eUEaNkOp0FlezJcihen2dS3RcR VdHi6dpOLSFhg== From: =?UTF-8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?= To: Daniel Lezcano Cc: Alexandre Bailon , Balsam CHIHI , AngeloGioacchino Del Regno , Chen-Yu Tsai , Alexandre Mergnat , kernel@collabora.com, =?UTF-8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?= , Amit Kucheria , Matthias Brugger , "Rafael J. Wysocki" , Zhang Rui , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH v3 2/6] thermal/drivers/mediatek/lvts_thermal: Honor sensors in immediate mode Date: Thu, 6 Jul 2023 11:37:33 -0400 Message-ID: <20230706153823.201943-3-nfraprado@collabora.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230706153823.201943-1-nfraprado@collabora.com> References: <20230706153823.201943-1-nfraprado@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Each controller can be configured to operate on immediate or filtered mode. On filtered mode, the sensors are enabled by setting the corresponding bits in MONCTL0, while on immediate mode, by setting MSRCTL1. Previously, the code would set MSRCTL1 for all four sensors when configured to immediate mode, but given that the controller might not have all four sensors connected, this would cause interrupts to trigger for non-existent sensors. Fix this by handling the MSRCTL1 register analogously to the MONCTL0: only enable the sensors that were declared. Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver") Reviewed-by: AngeloGioacchino Del Regno Tested-by: Chen-Yu Tsai Signed-off-by: Nícolas F. R. A. Prado --- Changes in v3: - Split bitmaps for immediate and filtered modes into separate arrays drivers/thermal/mediatek/lvts_thermal.c | 57 ++++++++++++++----------- 1 file changed, 33 insertions(+), 24 deletions(-) diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c index ba8f86ee12b6..8082195f53ae 100644 --- a/drivers/thermal/mediatek/lvts_thermal.c +++ b/drivers/thermal/mediatek/lvts_thermal.c @@ -896,24 +896,6 @@ static int lvts_ctrl_configure(struct device *dev, struct lvts_ctrl *lvts_ctrl) LVTS_HW_FILTER << 3 | LVTS_HW_FILTER; writel(value, LVTS_MSRCTL0(lvts_ctrl->base)); - /* - * LVTS_MSRCTL1 : Measurement control - * - * Bits: - * - * 9: Ignore MSRCTL0 config and do immediate measurement on sensor3 - * 6: Ignore MSRCTL0 config and do immediate measurement on sensor2 - * 5: Ignore MSRCTL0 config and do immediate measurement on sensor1 - * 4: Ignore MSRCTL0 config and do immediate measurement on sensor0 - * - * That configuration will ignore the filtering and the delays - * introduced below in MONCTL1 and MONCTL2 - */ - if (lvts_ctrl->mode == LVTS_MSR_IMMEDIATE_MODE) { - value = BIT(9) | BIT(6) | BIT(5) | BIT(4); - writel(value, LVTS_MSRCTL1(lvts_ctrl->base)); - } - /* * LVTS_MONCTL1 : Period unit and group interval configuration * @@ -979,6 +961,15 @@ static int lvts_ctrl_start(struct device *dev, struct lvts_ctrl *lvts_ctrl) struct thermal_zone_device *tz; u32 sensor_map = 0; int i; + /* + * Bitmaps to enable each sensor on immediate and filtered modes, as + * described in MSRCTL1 and MONCTL0 registers below, respectively. + */ + u32 sensor_imm_bitmap[] = { BIT(4), BIT(5), BIT(6), BIT(9) }; + u32 sensor_filt_bitmap[] = { BIT(0), BIT(1), BIT(2), BIT(3) }; + + u32 *sensor_bitmap = lvts_ctrl->mode == LVTS_MSR_IMMEDIATE_MODE ? + sensor_imm_bitmap : sensor_filt_bitmap; for (i = 0; i < lvts_ctrl->num_lvts_sensor; i++) { @@ -1017,20 +1008,38 @@ static int lvts_ctrl_start(struct device *dev, struct lvts_ctrl *lvts_ctrl) * map, so we can enable the temperature monitoring in * the hardware thermal controller. */ - sensor_map |= BIT(i); + sensor_map |= sensor_bitmap[i]; } /* - * Bits: - * 9: Single point access flow - * 0-3: Enable sensing point 0-3 - * * The initialization of the thermal zones give us * which sensor point to enable. If any thermal zone * was not described in the device tree, it won't be * enabled here in the sensor map. */ - writel(sensor_map | BIT(9), LVTS_MONCTL0(lvts_ctrl->base)); + if (lvts_ctrl->mode == LVTS_MSR_IMMEDIATE_MODE) { + /* + * LVTS_MSRCTL1 : Measurement control + * + * Bits: + * + * 9: Ignore MSRCTL0 config and do immediate measurement on sensor3 + * 6: Ignore MSRCTL0 config and do immediate measurement on sensor2 + * 5: Ignore MSRCTL0 config and do immediate measurement on sensor1 + * 4: Ignore MSRCTL0 config and do immediate measurement on sensor0 + * + * That configuration will ignore the filtering and the delays + * introduced in MONCTL1 and MONCTL2 + */ + writel(sensor_map, LVTS_MSRCTL1(lvts_ctrl->base)); + } else { + /* + * Bits: + * 9: Single point access flow + * 0-3: Enable sensing point 0-3 + */ + writel(sensor_map | BIT(9), LVTS_MONCTL0(lvts_ctrl->base)); + } return 0; } -- 2.41.0 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0C3E2EB64DC for ; Thu, 6 Jul 2023 15:39:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2e4cAWP0CdF2ePc2lMfmQlfeHlFycQnqfT15pwpzBY4=; b=QzBr8N92E2vfcE ocuAw8r++CRB6Nrth97Z8qjc1C2KEQfzjwQsbU03aF968bGb2BwHWd7mAOafLQJESGkV2A2nnILLf RmFu4lYMiQkt0rSOkyzjRz2EpJJASVyfcNseONM0g+6Y8/sM9ECjsor4TWMBnZuyjNfysuvdJW4Dq ZehKWLEHtyxZl2MuwDiHlqh84U9BdVweWi+XsOL+nZkuP7WzBKE8FvgFyeu7ZKjJt2OrnToh3CgLb Syy1J5jOt7ywMwcFgjNQf6I+mSirb1V4qLhoNwL8Xr24aUN54V/7UO0AuDN7IfR5c7rp4i28IEkvn QEOak3s0rdtCCSMeYU6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qHR4B-002200-2m; Thu, 06 Jul 2023 15:38:47 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qHR47-0021xA-1R; Thu, 06 Jul 2023 15:38:45 +0000 Received: from notapiano.myfiosgateway.com (zone.collabora.co.uk [167.235.23.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: nfraprado) by madras.collabora.co.uk (Postfix) with ESMTPSA id D68256606FDB; Thu, 6 Jul 2023 16:38:38 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1688657922; bh=Meb9/4Kmg9q/ka2O8MPM7s6SQhpMPo7uYZzBWndz+9A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KXyfqnA1mYaglla6wEzizqUkepj7HJlGs1V8RL8tY7mnOs6jmNOkOXzfMs5bR7FmG bzwy3lFJ1AyC6XqO45SNHVCisYuN6HDUFn/tfePvxIDm+HPl8UOBsV1RtYvXnEtxWj Meb7Rs25YZoQszTCiNBB1h/mS0GnLgZ6Q93PZiyJOO4aMaepHTP8RcjiOC1LKXYMSc rM2GLEACx/UzcYQS1bD7QM+jFJYA/m6D0MNwUpgQ3L8H5QrtZ4POU+zXEaOydzn6Ki JHTmkekXr/z5tAxdObqpoE9bgkoZWYwyFYqf3Mt0eUEaNkOp0FlezJcihen2dS3RcR VdHi6dpOLSFhg== From: =?UTF-8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?= To: Daniel Lezcano Cc: Alexandre Bailon , Balsam CHIHI , AngeloGioacchino Del Regno , Chen-Yu Tsai , Alexandre Mergnat , kernel@collabora.com, =?UTF-8?q?N=C3=ADcolas=20F=2E=20R=2E=20A=2E=20Prado?= , Amit Kucheria , Matthias Brugger , "Rafael J. Wysocki" , Zhang Rui , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH v3 2/6] thermal/drivers/mediatek/lvts_thermal: Honor sensors in immediate mode Date: Thu, 6 Jul 2023 11:37:33 -0400 Message-ID: <20230706153823.201943-3-nfraprado@collabora.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230706153823.201943-1-nfraprado@collabora.com> References: <20230706153823.201943-1-nfraprado@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230706_083843_748231_02AF0D8D X-CRM114-Status: GOOD ( 16.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: 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