From 5147d1ce0178cd7063b5f250f60c2464d1f186ac Mon Sep 17 00:00:00 2001
From: dengwei1 <dengwei1@motorola.com>
Date: Tue, 25 Sep 2018 11:22:58 +0800
Subject: [PATCH] channel input: add nova touch support rmmod

add nova touch support rmmod
rmmod and insmod work well

Change-Id: I36b43461fd584bcee1e191db256ec89c1ffe6fba
Signed-off-by: dengwei1 <dengwei1@motorola.com>
Reviewed-on: https://gerrit.mot.com/1245946
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Submit-Approved: Jira Key
---
 .../touchscreen/nova_36525_mmi/nt36xxx.c      | 34 ++++++++++++++++++-
 .../nova_36525_mmi/nt36xxx_ext_proc.c         | 27 +++++++++++++++
 .../nova_36525_mmi/nt36xxx_mp_ctrlram.c       | 15 ++++++++
 3 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/nova_36525_mmi/nt36xxx.c b/drivers/input/touchscreen/nova_36525_mmi/nt36xxx.c
index 03f7247be8f3..f91b65bf2c9f 100644
--- a/drivers/input/touchscreen/nova_36525_mmi/nt36xxx.c
+++ b/drivers/input/touchscreen/nova_36525_mmi/nt36xxx.c
@@ -66,6 +66,7 @@ uint8_t esd_retry_max = 5;
 
 #if NVT_TOUCH_EXT_PROC
 extern int32_t nvt_extra_proc_init(void);
+extern void nvt_extra_proc_remove(void);
 #endif
 
 #if NVT_TOUCH_FW
@@ -75,6 +76,7 @@ extern int32_t nvt_fw_sysfs_deinit(void);
 
 #if NVT_TOUCH_MP
 extern int32_t nvt_mp_proc_init(void);
+extern void nvt_mp_proc_remove(void);
 #endif
 
 struct nvt_ts_data *ts;
@@ -627,6 +629,15 @@ static int32_t nvt_flash_proc_init(void)
 }
 #endif
 
+static void nvt_flash_proc_remove(void)
+{
+	if (NVT_proc_entry != NULL) {
+		remove_proc_entry(DEVICE_NAME, NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  DEVICE_NAME);
+	}
+}
+
 #if WAKEUP_GESTURE
 #define GESTURE_WORD_C          12
 #define GESTURE_WORD_W          13
@@ -1535,6 +1546,24 @@ static int32_t nvt_ts_remove(struct i2c_client *client)
 	NVT_LOG("Removing driver...\n");
 
 	free_irq(client->irq, ts);
+	if (gpio_is_valid(ts->irq_gpio)) {
+		gpio_free(ts->irq_gpio);
+	}
+#if NVT_TOUCH_SUPPORT_HW_RST
+	if (gpio_is_valid(ts->reset_gpio))
+		gpio_free(ts->reset_gpio);
+#endif
+
+#if NVT_TOUCH_PROC
+	nvt_flash_proc_remove();
+#endif
+#if NVT_TOUCH_MP
+	nvt_mp_proc_remove();
+#endif
+#if NVT_TOUCH_EXT_PROC
+	nvt_extra_proc_remove();
+#endif
+
 	input_unregister_device(ts->input_dev);
 	i2c_set_clientdata(client, NULL);
 	kfree(ts);
@@ -1925,8 +1954,11 @@ static void __exit nvt_driver_exit(void)
 #endif
 
 #if NVT_TOUCH_ESD_PROTECT
-	if (nvt_esd_check_wq)
+	if (nvt_esd_check_wq) {
+		cancel_delayed_work_sync(&nvt_esd_check_work);
+		flush_workqueue(nvt_esd_check_wq);
 		destroy_workqueue(nvt_esd_check_wq);
+	}
 #endif /* #if NVT_TOUCH_ESD_PROTECT */
 }
 
diff --git a/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_ext_proc.c b/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_ext_proc.c
index 9ec4d20d69ce..12057a884967 100644
--- a/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_ext_proc.c
+++ b/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_ext_proc.c
@@ -691,4 +691,31 @@ int32_t nvt_extra_proc_init(void)
 
 	return 0;
 }
+
+void nvt_extra_proc_remove(void)
+{
+	if (NVT_proc_fw_version_entry != NULL) {
+		remove_proc_entry(NVT_FW_VERSION, NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  NVT_FW_VERSION);
+	}
+
+	if (NVT_proc_baseline_entry != NULL) {
+		remove_proc_entry(NVT_BASELINE, NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  NVT_BASELINE);
+	}
+
+	if (NVT_proc_raw_entry != NULL) {
+		remove_proc_entry(NVT_RAW, NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  NVT_RAW);
+	}
+
+	if (NVT_proc_diff_entry != NULL) {
+		remove_proc_entry(NVT_DIFF, NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  NVT_DIFF);
+	}
+}
 #endif
diff --git a/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_mp_ctrlram.c b/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_mp_ctrlram.c
index 0c05b865c783..118e42795bff 100644
--- a/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_mp_ctrlram.c
+++ b/drivers/input/touchscreen/nova_36525_mmi/nt36xxx_mp_ctrlram.c
@@ -1898,4 +1898,19 @@ int32_t nvt_mp_proc_init(void)
 	return ret;
 }
 
+void nvt_mp_proc_remove(void)
+{
+	if (NVT_proc_selftest_entry != NULL) {
+		remove_proc_entry("nvt_selftest", NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  "nvt_selftest");
+	}
+#if NVT_TOUCH_MP_LENOVO
+	if (NVT_proc_selftest_read_data != NULL) {
+		remove_proc_entry("nvt_read_data", NULL);
+		NVT_LOG("Removed %s under /proc\n",
+			  "nvt_read_data");
+	}
+#endif
+}
 #endif /* #if NVT_TOUCH_MP */