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 5578AC04FE1 for ; Tue, 25 Jul 2023 11:38:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234841AbjGYLiU (ORCPT ); Tue, 25 Jul 2023 07:38:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45324 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234920AbjGYLiA (ORCPT ); Tue, 25 Jul 2023 07:38:00 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3F891BF8 for ; Tue, 25 Jul 2023 04:37:47 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4268461698 for ; Tue, 25 Jul 2023 11:37:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 50CFBC433C9; Tue, 25 Jul 2023 11:37:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690285066; bh=RybqTSJzi4FIo+abIa7eRqW+uSupp2XZWUGQYRsODS8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iFeWlHFhSuiW3TVHiV1iUFxhIcJhxeBs5YJ309129M5GBRtbcrklSGYMdekCJjm8N 3iW02voYkh9rJ2inVPoAWhO4cSB20BJc1Z47LesnacnE7nynbVyavgJalMkJ/obUw7 RK0HSno6MU1OZpA44lsq5yFywBnsLEZmdiwrquNg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Luca Weiss , Dmitry Torokhov , Sasha Levin Subject: [PATCH 5.4 072/313] Input: drv260x - sleep between polling GO bit Date: Tue, 25 Jul 2023 12:43:45 +0200 Message-ID: <20230725104524.087528226@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230725104521.167250627@linuxfoundation.org> References: <20230725104521.167250627@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Luca Weiss [ Upstream commit efef661dfa6bf8cbafe4cd6a97433fcef0118967 ] When doing the initial startup there's no need to poll without any delay and spam the I2C bus. Let's sleep 15ms between each attempt, which is the same time as used in the vendor driver. Fixes: 7132fe4f5687 ("Input: drv260x - add TI drv260x haptics driver") Signed-off-by: Luca Weiss Link: https://lore.kernel.org/r/20230430-drv260x-improvements-v1-2-1fb28b4cc698@z3ntu.xyz Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin --- drivers/input/misc/drv260x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/input/misc/drv260x.c b/drivers/input/misc/drv260x.c index 79d7fa710a714..54002d1a446b7 100644 --- a/drivers/input/misc/drv260x.c +++ b/drivers/input/misc/drv260x.c @@ -435,6 +435,7 @@ static int drv260x_init(struct drv260x_data *haptics) } do { + usleep_range(15000, 15500); error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf); if (error) { dev_err(&haptics->client->dev, -- 2.39.2