Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
IronPort-SDR: AE4rsWmIvCjm3c8QrExfcc7G0lgPnPKxgVGrYRPrtxkQlUr9/pev5I4p1l/2hy8LuknpeCT8ds
 LNlMxLHTdelvhbDWt6gu0uNTu9bc2PsFp5ULosoMx+zclEFWVL+jzEbV/WaDYNk8F0EcsYX44r
 MW/BbDwN33AAcZNx1//I/NUrSXqE7jyW02dUBCA2wgjGpZKbuCJ7HsWR/lL6vTmkxJrvt4iI+x
 dNgDQFMjJFGVzfVMHQa/xLTzHMEO43TqbAR9DhpPM0BoBTvXxp+0312jV45S+WKlqGfO9R/wJp
 RLU=
IronPort-SDR: SoHED8XtekJl5VOTOSyaV+oV7992iFOM8QdaHBWijnwM6H6IpcbltXEJagGeqNcTKTXN4vz6Ik
 65iMt3HsiCt6AyXzpTRnUHUKL+4HLTUmsFq7xNef4Uf80n2gMIOlnc1JrdS2wCFTgeKA/XYLKd
 3Gbq8zrEVBoCUomBEefefVADm4tduUyjFM+C0toYrThT8d5GKSljdmlgLSHK9lzQ6WnI1JWhQy
 yzMMHu5od5gjFN663o6C2xJA1tRhAi6hpwxV3q+Enq/E484us7pwthKIqzoQn9ZhNbeB4Tw1gB
 Rno=
From:   Jiada Wang <jiada_wang@mentor.com>
To:     <jikos@kernel.org>, <benjamin.tissoires@redhat.com>,
        <rydberg@bitmath.org>, <dmitry.torokhov@gmail.com>,
        <nick@shmanahar.org>
CC:     <linux-input@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <erosca@de.adit-jv.com>, <Andrew_Gabbasov@mentor.com>,
        <jiada_wang@mentor.com>
Subject: [PATCH v6 20/48] Input: atmel_mxt_ts - refactor code to enter bootloader into separate func
Date:   Fri, 22 Nov 2019 17:23:34 +0900
Message-ID: <20191122082402.18173-21-jiada_wang@mentor.com>
In-Reply-To: <20191122082402.18173-1-jiada_wang@mentor.com>
References: <20191122082402.18173-1-jiada_wang@mentor.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Nick Dyer <nick.dyer@itdev.co.uk>

Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
(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 <george_davis@mentor.com>
[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 <jiada_wang@mentor.com>
---
 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 44bb77c0159c..04627db23ad2 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 */
-- 
2.17.1