diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
index 333ed4a..eeebafd 100644
--- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c
+++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2017, Linaro Ltd
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
@@ -36,7 +28,7 @@
 	.reg_bits = 32,
 	.reg_stride = 4,
 	.val_bits = 32,
-	.max_register = 0x1000,
+	.max_register = 0xFFC,
 	.fast_io = true,
 };
 
@@ -55,7 +47,6 @@
 
 static int qcom_apcs_ipc_probe(struct platform_device *pdev)
 {
-	struct device_node *np = pdev->dev.of_node;
 	struct qcom_apcs_ipc *apcs;
 	struct regmap *regmap;
 	struct resource *res;
@@ -63,6 +54,11 @@
 	void __iomem *base;
 	unsigned long i;
 	int ret;
+	const struct of_device_id apcs_clk_match_table[] = {
+		{ .compatible = "qcom,msm8916-apcs-kpss-global", },
+		{ .compatible = "qcom,qcs404-apcs-apps-global", },
+		{}
+	};
 
 	apcs = devm_kzalloc(&pdev->dev, sizeof(*apcs), GFP_KERNEL);
 	if (!apcs)
@@ -91,16 +87,17 @@
 	apcs->mbox.chans = apcs->mbox_chans;
 	apcs->mbox.num_chans = ARRAY_SIZE(apcs->mbox_chans);
 
-	ret = mbox_controller_register(&apcs->mbox);
+	ret = devm_mbox_controller_register(&pdev->dev, &apcs->mbox);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register APCS IPC controller\n");
 		return ret;
 	}
 
-	if (of_device_is_compatible(np, "qcom,msm8916-apcs-kpss-global")) {
+	if (of_match_device(apcs_clk_match_table, &pdev->dev)) {
 		apcs->clk = platform_device_register_data(&pdev->dev,
 							  "qcom-apcs-msm8916-clk",
-							  -1, NULL, 0);
+							  PLATFORM_DEVID_NONE,
+							  NULL, 0);
 		if (IS_ERR(apcs->clk))
 			dev_err(&pdev->dev, "failed to register APCS clk\n");
 	}
@@ -115,7 +112,6 @@
 	struct qcom_apcs_ipc *apcs = platform_get_drvdata(pdev);
 	struct platform_device *clk = apcs->clk;
 
-	mbox_controller_unregister(&apcs->mbox);
 	platform_device_unregister(clk);
 
 	return 0;
@@ -126,7 +122,11 @@
 	{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = (void *)8 },
 	{ .compatible = "qcom,msm8996-apcs-hmss-global", .data = (void *)16 },
 	{ .compatible = "qcom,msm8998-apcs-hmss-global", .data = (void *)8 },
+	{ .compatible = "qcom,qcs404-apcs-apps-global", .data = (void *)8 },
+	{ .compatible = "qcom,sc7180-apss-shared", .data = (void *)12 },
 	{ .compatible = "qcom,sdm845-apss-shared", .data = (void *)12 },
+	{ .compatible = "qcom,sm8150-apss-shared", .data = (void *)12 },
+	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = (void *)8 },
 	{}
 };
 MODULE_DEVICE_TABLE(of, qcom_apcs_ipc_of_match);