From ca2c13ef09a888f274296c021da26bdccf1228d3 Mon Sep 17 00:00:00 2001
From: Konstantin Makariev <hcv867@motorola.com>
Date: Tue, 15 Dec 2020 09:56:19 -0600
Subject: [PATCH] sec_mmi: mmi status check

Added MMI status check to driver's probe. Kernel module will be loaded
only when MMI status check succeed. Driver node needs to have property
mmi,status in device tree for this to work.

Change-Id: Ie7dffc5e9bb4769492e5fd15f0da94908cf8ef79
Signed-off-by: Konstantin Makariev <hcv867@motorola.com>
Reviewed-on: https://gerrit.mot.com/1827959
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Ling Jin <lingjin@motorola.com>
Submit-Approved: Jira Key
---
 drivers/input/touchscreen/sec_mmi/Android.mk |  1 +
 drivers/input/touchscreen/sec_mmi/Kbuild     |  2 ++
 drivers/input/touchscreen/sec_mmi/sec_ts.c   | 11 ++++++-----
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/input/touchscreen/sec_mmi/Android.mk b/drivers/input/touchscreen/sec_mmi/Android.mk
index e02d132fb148..dfa045e87172 100644
--- a/drivers/input/touchscreen/sec_mmi/Android.mk
+++ b/drivers/input/touchscreen/sec_mmi/Android.mk
@@ -5,6 +5,7 @@ include $(CLEAR_VARS)
 LOCAL_MODULE := sec_mmi.ko
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_PATH := $(KERNEL_MODULES_OUT)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(KERNEL_MODULES_OUT)/mmi_info.ko
 ifneq ($(findstring touchscreen_mmi.ko,$(BOARD_VENDOR_KERNEL_MODULES)),)
 	KERNEL_CFLAGS += CONFIG_INPUT_TOUCHSCREEN_MMI=y
 	LOCAL_ADDITIONAL_DEPENDENCIES := $(KERNEL_MODULES_OUT)/touchscreen_mmi.ko
diff --git a/drivers/input/touchscreen/sec_mmi/Kbuild b/drivers/input/touchscreen/sec_mmi/Kbuild
index 629c4a646040..617599696094 100644
--- a/drivers/input/touchscreen/sec_mmi/Kbuild
+++ b/drivers/input/touchscreen/sec_mmi/Kbuild
@@ -25,3 +25,5 @@ ifneq ($(filter m y,$(CONFIG_INPUT_TOUCHSCREEN_MMI)),)
 else
     sec_mmi-objs += sec_ts_mmi.o
 endif
+
+KBUILD_EXTRA_SYMBOLS += $(CURDIR)/$(KBUILD_EXTMOD)/../../../mmi_info/Module.symvers
diff --git a/drivers/input/touchscreen/sec_mmi/sec_ts.c b/drivers/input/touchscreen/sec_mmi/sec_ts.c
index 348d42555275..e82fb7779386 100644
--- a/drivers/input/touchscreen/sec_mmi/sec_ts.c
+++ b/drivers/input/touchscreen/sec_mmi/sec_ts.c
@@ -14,6 +14,7 @@ struct sec_ts_data *tsp_info;
 
 #include "sec_ts.h"
 #include "sec_mmi.h"
+#include <linux/mmi_device.h>
 
 struct sec_ts_data *ts_dup;
 
@@ -1737,6 +1738,11 @@ static int sec_ts_probe(struct i2c_client *client, const struct i2c_device_id *i
 		return -EIO;
 	}
 
+	if (client->dev.of_node && !mmi_device_is_available(client->dev.of_node)) {
+		input_err(true, &client->dev, "%s mmi: device not supported\n", __func__);
+		return -ENODEV;
+	}
+
 	/* parse dt */
 	if (client->dev.of_node) {
 		pdata = devm_kzalloc(&client->dev,
@@ -2671,11 +2677,6 @@ static int __init sec_ts_init(void)
 		return -ENODEV;
 	}
 #endif
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 4, 0))
-	if (!ts_mmi_is_panel_match("mmi,panel_name", "lsi"))
-		return false;
-#endif
 	pr_err("%s\n", __func__);
 
 	return i2c_add_driver(&sec_ts_driver);