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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 60516C432C0 for ; Fri, 22 Nov 2019 11:19:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 34C8420730 for ; Fri, 22 Nov 2019 11:19:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574421563; bh=uwR+ZkkgiwpN6ZchteRgte5Qy/AWfYAwBCYwH+Xv/ZM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=QSKtJTSKZcRwiDVf0xUA6PAYJDG9muks60Xo9Hnm78+oTAvA1QsJvPCa423TS4ASC hvhWxwVNLPEya2OIVnOww5T9GEqczijodIKHu57U444szuPb1KaGphQx1CG+ciROiT vyY/pzaIgvypIb0wjatFS1hCPEXDJnvTWddLV5ZU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729822AbfKVKsB (ORCPT ); Fri, 22 Nov 2019 05:48:01 -0500 Received: from mail.kernel.org ([198.145.29.99]:56210 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728281AbfKVKr5 (ORCPT ); Fri, 22 Nov 2019 05:47:57 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 765B820715; Fri, 22 Nov 2019 10:47:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574419677; bh=uwR+ZkkgiwpN6ZchteRgte5Qy/AWfYAwBCYwH+Xv/ZM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zzhvlcZj/5LrBjU7vWbhoOb6IT3tsbhoYB2Jxf3LbiQB2gmsJnH9V2U7+hFORmi9o eS+mvB/xdx8AdO6Jef1JZ9QPbnzOuLU4XgGKkLoAEwPj8xFWilKtzAcTSZrN6mrsW9 MhmHgH1kkcKmbn2S5R3LPwiMaiceiXm6MjuO79jA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Julian Sax , Hans de Goede , Dmitry Torokhov , Sasha Levin Subject: [PATCH 4.9 193/222] Input: silead - try firmware reload after unsuccessful resume Date: Fri, 22 Nov 2019 11:28:53 +0100 Message-Id: <20191122100916.197821172@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100830.874290814@linuxfoundation.org> References: <20191122100830.874290814@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Julian Sax [ Upstream commit dde27443211062e841806feaf690674b7c3a599f ] A certain silead controller (Chip ID: 0x56810000) loses its firmware after suspend, causing the resume to fail. This patch tries to load the firmware, should a resume error occur and retries the resuming. Signed-off-by: Julian Sax Acked-by: Hans de Goede Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin --- drivers/input/touchscreen/silead.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/input/touchscreen/silead.c b/drivers/input/touchscreen/silead.c index f502c8488be86..867772878c0c8 100644 --- a/drivers/input/touchscreen/silead.c +++ b/drivers/input/touchscreen/silead.c @@ -504,20 +504,33 @@ static int __maybe_unused silead_ts_suspend(struct device *dev) static int __maybe_unused silead_ts_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); + bool second_try = false; int error, status; silead_ts_set_power(client, SILEAD_POWER_ON); + retry: error = silead_ts_reset(client); if (error) return error; + if (second_try) { + error = silead_ts_load_fw(client); + if (error) + return error; + } + error = silead_ts_startup(client); if (error) return error; status = silead_ts_get_status(client); if (status != SILEAD_STATUS_OK) { + if (!second_try) { + second_try = true; + dev_dbg(dev, "Reloading firmware after unsuccessful resume\n"); + goto retry; + } dev_err(dev, "Resume error, status: 0x%02x\n", status); return -ENODEV; } -- 2.20.1