oplus: Fix duplicate registration of /proc/ftm_tfa98xx

Multiple tfa chips does exist on one device, we shouldn't create it
every time on drivers probe. Make it only run once to fix the kernel
warning.

[    1.457908] proc_dir_entry '/proc/ftm_tfa98xx' already registered
[    1.457933] WARNING: CPU: 1 PID: 1 at fs/proc/generic.c:360 proc_register+0x10c/0x180
[    1.457941] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G S      W         4.19.157-Horizon-04171222 #6
[    1.457945] Hardware name: Qualcomm Technologies, Inc. kona MTP 19805 (DT)
[    1.457951] pstate: 60800005 (nZCv daif -PAN +UAO)
[    1.457956] pc : proc_register+0x10c/0x180
[    1.457961] lr : proc_register+0x104/0x180
[    1.457964] pc : ffffff968ed47da4
[    1.457968] lr : ffffff968ed47d9c
[    1.457972] sp : ffffff800805bae0
[    1.457975] x29: ffffff800805bae0 x28: 0000000000000000
[    1.457981] x27: 0000000000000000 x26: 0000000000000000
[    1.457986] x25: ffffff9692d53000 x24: ffffff9692d53000
[    1.457990] x23: 0000000000000000 x22: ffffffebf669ab18
[    1.457996] x21: ffffff9691a5cee0 x20: ffffff9691a5ce60
[    1.458001] x19: ffffffed58a84180 x18: ffffff969265b000
[    1.458005] x17: 00000000007d6990 x16: 00000000000000c4
[    1.458010] x15: ffffff9690643c7c x14: 6572657473696765
[    1.458015] x13: 0000000000000212 x12: 0000000000000000
[    1.458020] x11: 0000000000000000 x10: ffffffffffffffff
[    1.458025] x9 : d0a22079345ec400 x8 : d0a22079345ec400
[    1.458029] x7 : 393735342e312020 x6 : ffffffed599b3d50
[    1.458034] x5 : 0000000000000000 x4 : 0000000000000003
[    1.458039] x3 : 0000000000000045 x2 : 0000000000000001
[    1.458043] x1 : 0000000000000000 x0 : ffffff9692682710
[    1.458050] Call trace:
[    1.458055] proc_register+0x10c/0x180
[    1.458060] proc_create_data+0x88/0xc0
[    1.458067] tfa98xx_i2c_probe+0x6a8/0xa08
[    1.458075] i2c_device_probe+0x230/0x278
[    1.458081] really_probe+0x270/0x2f4
[    1.458085] driver_probe_device+0x60/0xf8
[    1.458090] __driver_attach+0xe8/0x124
[    1.458095] bus_for_each_dev+0x78/0xc0
[    1.458100] driver_attach+0x20/0x28
[    1.458104] bus_add_driver+0x128/0x20c
[    1.458108] driver_register+0x74/0x108
[    1.458114] i2c_register_driver+0x3c/0x9c
[    1.458120] tfa98xx_i2c_init+0x60/0x80
[    1.458125] do_one_initcall+0xd0/0x210
[    1.458130] do_initcall_level+0x13c/0x164
[    1.458134] do_basic_setup+0x48/0x94
[    1.458138] kernel_init_freeable+0xac/0x144
[    1.458147] kernel_init+0x14/0x2b0
[    1.458153] ret_from_fork+0x10/0x18

Signed-off-by: LibXZR <i@xzr.moe>

oplus/kernel_4.19/audio/codecs/tfa98xx-v6/tfa98xx_v6.c

@@ -5260,19 +5260,6 @@ static int tfa98xx_i2c_probe(struct i2c_client *i2c,
 	if (no_start == 0)
 		tfa98xx_debug_init(tfa98xx, i2c);
 
-	#ifdef OPLUS_ARCH_EXTENDS
-	#ifdef CONFIG_DEBUG_FS
-	tfa98xx_debugfs = debugfs_create_file(TFA98XX_DEBUG_FS_NAME,
-			S_IFREG | S_IRUGO | S_IWUSR, NULL, (void *)TFA98XX_DEBUG_FS_NAME, &tfa98xx_debug_ops);
-	#else
-	proc_create_data(TFA98XX_DEBUG_FS_NAME,
-				S_IFREG | S_IRUGO | S_IWUSR, NULL, &tfa98xx_debug_ops, (void *)TFA98XX_DEBUG_FS_NAME);
-	#endif /*CONFIG_DEBUG_FS*/
-
-	tfa_ftm_mode = get_boot_mode();
-	pr_info("tfa_ftm_mode=%d\n", tfa_ftm_mode);
-	#endif /* OPLUS_ARCH_EXTENDS */
-
 	/* Register the sysfs files for climax backdoor access */
 	ret = device_create_bin_file(&i2c->dev, &dev_attr_rw);
 	if (ret)
@@ -5396,6 +5383,19 @@ static int __init tfa98xx_i2c_init(void)
 		ret = -ENOMEM;
 	}
 
+#ifdef OPLUS_ARCH_EXTENDS
+#ifdef CONFIG_DEBUG_FS
+	tfa98xx_debugfs = debugfs_create_file(TFA98XX_DEBUG_FS_NAME,
+			S_IFREG | S_IRUGO | S_IWUSR, NULL, (void *)TFA98XX_DEBUG_FS_NAME, &tfa98xx_debug_ops);
+#else
+	proc_create_data(TFA98XX_DEBUG_FS_NAME,
+				S_IFREG | S_IRUGO | S_IWUSR, NULL, &tfa98xx_debug_ops, (void *)TFA98XX_DEBUG_FS_NAME);
+#endif /*CONFIG_DEBUG_FS*/
+
+	tfa_ftm_mode = get_boot_mode();
+	pr_info("tfa_ftm_mode=%d\n", tfa_ftm_mode);
+#endif /* OPLUS_ARCH_EXTENDS */
+
 	ret = i2c_add_driver(&tfa98xx_i2c_driver);
 
 	return ret;