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 BA167C41513 for ; Tue, 25 Jul 2023 11:16:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234246AbjGYLQy (ORCPT ); Tue, 25 Jul 2023 07:16:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234320AbjGYLQk (ORCPT ); Tue, 25 Jul 2023 07:16:40 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3CECD1FEC for ; Tue, 25 Jul 2023 04:16:32 -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 7D0366168E for ; Tue, 25 Jul 2023 11:16:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FB4EC433C8; Tue, 25 Jul 2023 11:16:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690283790; bh=RybqTSJzi4FIo+abIa7eRqW+uSupp2XZWUGQYRsODS8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CSubnXwQaKmuC2w90eX+kV/324HjDBLZJ93TcHmFxs1nQlGVrvuVizSVLg9x0xmdx GVhiE+vndshwRHnuJgcQ3drKJqnCX2rPOYotQX36n32yMMWBkPocrYbq2heZDuSWXB 5CLs6M7UZclKDxlfSIt638SSsdix3MWNNi8hRd5g= 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 5.10 095/509] Input: drv260x - sleep between polling GO bit Date: Tue, 25 Jul 2023 12:40:34 +0200 Message-ID: <20230725104558.051567928@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230725104553.588743331@linuxfoundation.org> References: <20230725104553.588743331@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