From patchwork Tue Oct 29 07:19:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Jiada" X-Patchwork-Id: 11217375 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DB6EC1599 for ; Tue, 29 Oct 2019 07:22:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2E1D20663 for ; Tue, 29 Oct 2019 07:22:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731074AbfJ2HV1 (ORCPT ); Tue, 29 Oct 2019 03:21:27 -0400 Received: from esa3.mentor.iphmx.com ([68.232.137.180]:41262 "EHLO esa3.mentor.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731044AbfJ2HV1 (ORCPT ); Tue, 29 Oct 2019 03:21:27 -0400 IronPort-SDR: GZBqbnvhxOuhGx4NGRfoylJZ/f1Gdwfzz4KzoK6kUjWSsIBisx+j3UTzn30xMXy44YO/7AXLLC tmausUvwhvPXAoiUpQ0qpWUoe5QiSTMtpF4Pw+fEh1wkkYIpl/kLg4aSR+OD6R9NvmMfihDNiL 0GO1I+gb0u4euGmdGAHLFzgJjPmCpfsNMZeSO/vVzn8y/ddIVI3PF/LGCGdZogjqeWQEJOpat1 I4zs69hgEE9P1qviot4bCcD8HMoOkZTq2d2gkdWQW6uk0e99aA5aO3vzNom8Nt/KL+A5VGJGL4 4lE= X-IronPort-AV: E=Sophos;i="5.68,243,1569312000"; d="scan'208";a="42663255" Received: from orw-gwy-01-in.mentorg.com ([192.94.38.165]) by esa3.mentor.iphmx.com with ESMTP; 28 Oct 2019 23:21:27 -0800 IronPort-SDR: LoWoxrpRrMW2jv9LUGiIe5sVF5Tdvc2JSrjzg5fTISPN5MOP3gVsGM/Nt5h7A50FEYsZr7Smqi YZbxP3notGWFNyQuTo/5SPnZaVzjQtdO8Fo0lXVY9/0U9ykhbzEiYVYga2gS9ha426IgkdcZJP JegtlVnx23OHTbgPULaSTMg3GEyyvQ0wUoo3K/2y5kXWTJqFjnKIvivHL4dPgs0veTVDTxJZeJ 3dTdPU6RUxNkVSco7UVVnfh/xAzjwMOokphqMg7SULdnW6bvhgGwNn85uzh/4sQgHAoq7LNBwJ AgY= From: Jiada Wang To: , , , CC: , , , , Subject: [PATCH v4 20/48] Input: atmel_mxt_ts - refactor code to enter bootloader into separate func Date: Tue, 29 Oct 2019 16:19:42 +0900 Message-ID: <20191029072010.8492-21-jiada_wang@mentor.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191029072010.8492-1-jiada_wang@mentor.com> References: <20191029072010.8492-1-jiada_wang@mentor.com> MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Nick Dyer Signed-off-by: Nick Dyer (cherry picked from ndyer/linux/for-upstream commit bedd706a32522b946467e15f4f4f24de86a1b4d7) [gdavis: Resolve forward port conflicts due to applying upstream commit 96a938aa214e ("Input: atmel_mxt_ts - remove platform data support").] Signed-off-by: George G. Davis [jiada: Squash change from ndyer/linux/for-upstream commit d691d3ee6c6de84b38464a42 3207b3e23cb9dc3a - Input: atmel_mxt_ts - check firmware format before entering bootloader] Signed-off-by: Jiada Wang --- drivers/input/touchscreen/atmel_mxt_ts.c | 43 +++++++++++++++--------- 1 file changed, 27 insertions(+), 16 deletions(-) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 855c36e7903d..49ec37149118 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -3257,23 +3257,10 @@ static int mxt_check_firmware_format(struct device *dev, return -EINVAL; } -static int mxt_load_fw(struct device *dev) +static int mxt_enter_bootloader(struct mxt_data *data) { - struct mxt_data *data = dev_get_drvdata(dev); - struct mxt_flash f = { 0, }; int ret; - ret = request_firmware(&f.fw, data->fw_name, dev); - if (ret) { - dev_err(dev, "Unable to open firmware %s\n", data->fw_name); - return ret; - } - - /* Check for incorrect enc file */ - ret = mxt_check_firmware_format(dev, f.fw); - if (ret) - goto release_firmware; - if (data->suspended) { if (data->suspend_mode == MXT_SUSPEND_REGULATOR) mxt_regulator_enable(data); @@ -3291,14 +3278,14 @@ static int mxt_load_fw(struct device *dev) ret = mxt_t6_command(data, MXT_COMMAND_RESET, MXT_BOOT_VALUE, false); if (ret) - goto release_firmware; + return ret; msleep(MXT_RESET_TIME); /* Do not need to scan since we know family ID */ ret = mxt_lookup_bootloader_address(data, 0); if (ret) - goto release_firmware; + return ret; mxt_sysfs_remove(data); mxt_free_input_device(data); @@ -3309,6 +3296,30 @@ static int mxt_load_fw(struct device *dev) reinit_completion(&data->bl_completion); + return 0; +} + +static int mxt_load_fw(struct device *dev) +{ + struct mxt_data *data = dev_get_drvdata(dev); + struct mxt_flash f = { 0, }; + int ret; + + ret = request_firmware(&f.fw, data->fw_name, dev); + if (ret) { + dev_err(dev, "Unable to open firmware %s\n", data->fw_name); + return ret; + } + + /* Check for incorrect enc file */ + ret = mxt_check_firmware_format(dev, f.fw); + if (ret) + goto release_firmware; + + ret = mxt_enter_bootloader(data); + if (ret) + goto release_firmware; + ret = mxt_check_bootloader(data, MXT_WAITING_BOOTLOAD_CMD, false); if (ret) { /* Bootloader may still be unlocked from previous attempt */