From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8423E8F5D for ; Sun, 16 Jul 2023 20:37:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05C77C433C7; Sun, 16 Jul 2023 20:37:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1689539823; bh=QPRrWe63QBYg7dzwsjmM9xLMzbOEzZ+m92C/dZzbynM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bxqSZxBdGCo2rXIVQbep32RSt4/1fw1KwiUXCbJxBtdgJj4Xk2gunH5xmxLHkR40a vSSt5VuYc+csXTN7tzTKRLAZFUi3xsC27z3KK8eQuj+Og9khZy+cLZVm3THAofNvT1 gwCLq+irFhEtFZP0x9EPckILyTHMSnPlYb8vp86k= 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 6.1 145/591] Input: drv260x - sleep between polling GO bit Date: Sun, 16 Jul 2023 21:44:44 +0200 Message-ID: <20230716194927.622735984@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230716194923.861634455@linuxfoundation.org> References: <20230716194923.861634455@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 0efe56f49aa94..1923924fdd444 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