Merge tag 'mailbox-v6.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration

Pull mailbox updates from Jassi Brar:

 - mailbox api: allow direct registration to a channel and convert omap
   and pcc to use mbox_bind_client

 - omap and hi6220 : use of_property_read_bool

 - test: fix double-free and use spinlock header

 - rockchip and bcm-pdc: drop of_match_ptr

 - mpfs: change config symbol

 - mediatek gce: support MT6795

 - qcom apcs: consolidate of_device_id and support IPQ9574

* tag 'mailbox-v6.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  dt-bindings: mailbox: qcom: add compatible for IPQ9574 SoC
  mailbox: qcom-apcs-ipc: do not grow the of_device_id
  dt-bindings: mailbox: qcom,apcs-kpss-global: use fallbacks for few variants
  dt-bindings: mailbox: mediatek,gce-mailbox: Add support for MT6795
  mailbox: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE
  mailbox: bcm-pdc: drop of_match_ptr for ID table
  mailbox: rockchip: drop of_match_ptr for ID table
  mailbox: mailbox-test: Fix potential double-free in mbox_test_message_write()
  mailbox: mailbox-test: Explicitly include header for spinlock support
  mailbox: Use of_property_read_bool() for boolean properties
  mailbox: pcc: Use mbox_bind_client
  mailbox: omap: Use mbox_bind_client
  mailbox: Allow direct registration to a channel

13 files changed, 288 insertions, 122 deletions

diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
index d383b2ab3ce8..cef9d7601398 100644
--- a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
+++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
@@ -16,14 +16,18 @@ description:
 
 properties:
   compatible:
-    enum:
-      - mediatek,mt6779-gce
-      - mediatek,mt8173-gce
-      - mediatek,mt8183-gce
-      - mediatek,mt8186-gce
-      - mediatek,mt8188-gce
-      - mediatek,mt8192-gce
-      - mediatek,mt8195-gce
+    oneOf:
+      - enum:
+          - mediatek,mt6779-gce
+          - mediatek,mt8173-gce
+          - mediatek,mt8183-gce
+          - mediatek,mt8186-gce
+          - mediatek,mt8188-gce
+          - mediatek,mt8192-gce
+          - mediatek,mt8195-gce
+      - items:
+          - const: mediatek,mt6795-gce
+          - const: mediatek,mt8173-gce
 
   "#mbox-cells":
     const: 2
diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml
index 8f924bb4c583..32d7bbc98cac 100644
--- a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml
+++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml
@@ -19,22 +19,15 @@ properties:
       - items:
           - enum:
               - qcom,ipq5332-apcs-apps-global
+              - qcom,ipq8074-apcs-apps-global
+              - qcom,ipq9574-apcs-apps-global
           - const: qcom,ipq6018-apcs-apps-global
       - items:
           - enum:
-              - qcom,ipq6018-apcs-apps-global
-              - qcom,ipq8074-apcs-apps-global
-              - qcom,msm8996-apcs-hmss-global
-              - qcom,msm8998-apcs-hmss-global
-              - qcom,qcm2290-apcs-hmss-global
               - qcom,sc7180-apss-shared
               - qcom,sc8180x-apss-shared
-              - qcom,sdm660-apcs-hmss-global
-              - qcom,sdm845-apss-shared
-              - qcom,sm4250-apcs-hmss-global
-              - qcom,sm6125-apcs-hmss-global
-              - qcom,sm6115-apcs-hmss-global
               - qcom,sm8150-apss-shared
+          - const: qcom,sdm845-apss-shared
       - items:
           - enum:
               - qcom,msm8916-apcs-kpss-global
@@ -45,6 +38,18 @@ properties:
               - qcom,qcs404-apcs-apps-global
               - qcom,sdx55-apcs-gcc
           - const: syscon
+      - enum:
+          - qcom,ipq6018-apcs-apps-global
+          - qcom,ipq8074-apcs-apps-global
+          - qcom,msm8996-apcs-hmss-global
+          - qcom,msm8998-apcs-hmss-global
+          - qcom,qcm2290-apcs-hmss-global
+          - qcom,sdm660-apcs-hmss-global
+          - qcom,sdm845-apss-shared
+          - qcom,sm4250-apcs-hmss-global
+          - qcom,sm6115-apcs-hmss-global
+          - qcom,sm6125-apcs-hmss-global
+
   reg:
     maxItems: 1
 
@@ -88,6 +93,7 @@ allOf:
           items:
             - const: pll
             - const: aux
+
   - if:
       properties:
         compatible:
@@ -112,7 +118,6 @@ allOf:
           contains:
             enum:
               - qcom,ipq6018-apcs-apps-global
-              - qcom,ipq8074-apcs-apps-global
     then:
       properties:
         clocks:
@@ -134,14 +139,11 @@ allOf:
             - qcom,msm8996-apcs-hmss-global
             - qcom,msm8998-apcs-hmss-global
             - qcom,qcm2290-apcs-hmss-global
-            - qcom,sc7180-apss-shared
-            - qcom,sc8180x-apss-shared
             - qcom,sdm660-apcs-hmss-global
             - qcom,sdm845-apss-shared
             - qcom,sm4250-apcs-hmss-global
             - qcom,sm6115-apcs-hmss-global
             - qcom,sm6125-apcs-hmss-global
-            - qcom,sm8150-apss-shared
     then:
       properties:
         clocks: false
@@ -153,7 +155,6 @@ allOf:
           contains:
             enum:
               - qcom,ipq6018-apcs-apps-global
-              - qcom,ipq8074-apcs-apps-global
     then:
       properties:
         '#clock-cells':
diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
index af6b0f5b491d..bc2e265cb02d 100644
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -176,7 +176,7 @@ config MAILBOX_TEST
 config POLARFIRE_SOC_MAILBOX
 	tristate "PolarFire SoC (MPFS) Mailbox"
 	depends on HAS_IOMEM
-	depends on SOC_MICROCHIP_POLARFIRE || COMPILE_TEST
+	depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
 	help
 	  This driver adds support for the PolarFire SoC (MPFS) mailbox controller.
 
diff --git a/drivers/mailbox/bcm-pdc-mailbox.c b/drivers/mailbox/bcm-pdc-mailbox.c
index 8d3a4c1fe761..8c95e3ce295f 100644
--- a/drivers/mailbox/bcm-pdc-mailbox.c
+++ b/drivers/mailbox/bcm-pdc-mailbox.c
@@ -1635,7 +1635,7 @@ static struct platform_driver pdc_mbox_driver = {
 	.remove = pdc_remove,
 	.driver = {
 		   .name = "brcm-iproc-pdc-mbox",
-		   .of_match_table = of_match_ptr(pdc_mbox_of_match),
+		   .of_match_table = pdc_mbox_of_match,
 		   },
 };
 module_platform_driver(pdc_mbox_driver);
diff --git a/drivers/mailbox/hi6220-mailbox.c b/drivers/mailbox/hi6220-mailbox.c
index fca61f5312d9..1c73c63598f5 100644
--- a/drivers/mailbox/hi6220-mailbox.c
+++ b/drivers/mailbox/hi6220-mailbox.c
@@ -325,10 +325,7 @@ static int hi6220_mbox_probe(struct platform_device *pdev)
 	writel(~0x0, ACK_INT_CLR_REG(mbox->ipc));
 
 	/* use interrupt for tx's ack */
-	if (of_find_property(node, "hi6220,mbox-tx-noirq", NULL))
-		mbox->tx_irq_mode = false;
-	else
-		mbox->tx_irq_mode = true;
+	mbox->tx_irq_mode = !of_property_read_bool(node, "hi6220,mbox-tx-noirq");
 
 	if (mbox->tx_irq_mode)
 		mbox->controller.txdone_irq = true;
diff --git a/drivers/mailbox/mailbox-test.c b/drivers/mailbox/mailbox-test.c
index 4555d678fadd..c4a705c30331 100644
--- a/drivers/mailbox/mailbox-test.c
+++ b/drivers/mailbox/mailbox-test.c
@@ -12,10 +12,12 @@
 #include <linux/kernel.h>
 #include <linux/mailbox_client.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/poll.h>
 #include <linux/slab.h>
+#include <linux/spinlock.h>
 #include <linux/uaccess.h>
 #include <linux/sched/signal.h>
 
@@ -38,6 +40,7 @@ struct mbox_test_device {
 	char			*signal;
 	char			*message;
 	spinlock_t		lock;
+	struct mutex		mutex;
 	wait_queue_head_t	waitq;
 	struct fasync_struct	*async_queue;
 	struct dentry		*root_debugfs_dir;
@@ -110,6 +113,8 @@ static ssize_t mbox_test_message_write(struct file *filp,
 		return -EINVAL;
 	}
 
+	mutex_lock(&tdev->mutex);
+
 	tdev->message = kzalloc(MBOX_MAX_MSG_LEN, GFP_KERNEL);
 	if (!tdev->message)
 		return -ENOMEM;
@@ -144,6 +149,8 @@ out:
 	kfree(tdev->message);
 	tdev->signal = NULL;
 
+	mutex_unlock(&tdev->mutex);
+
 	return ret < 0 ? ret : count;
 }
 
@@ -392,6 +399,7 @@ static int mbox_test_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, tdev);
 
 	spin_lock_init(&tdev->lock);
+	mutex_init(&tdev->mutex);
 
 	if (tdev->rx_channel) {
 		tdev->rx_buffer = devm_kzalloc(&pdev->dev,
diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index 4229b9b5da98..adf36c05fa43 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -317,6 +317,71 @@ int mbox_flush(struct mbox_chan *chan, unsigned long timeout)
 }
 EXPORT_SYMBOL_GPL(mbox_flush);
 
+static int __mbox_bind_client(struct mbox_chan *chan, struct mbox_client *cl)
+{
+	struct device *dev = cl->dev;
+	unsigned long flags;
+	int ret;
+
+	if (chan->cl || !try_module_get(chan->mbox->dev->driver->owner)) {
+		dev_dbg(dev, "%s: mailbox not free\n", __func__);
+		return -EBUSY;
+	}
+
+	spin_lock_irqsave(&chan->lock, flags);
+	chan->msg_free = 0;
+	chan->msg_count = 0;
+	chan->active_req = NULL;
+	chan->cl = cl;
+	init_completion(&chan->tx_complete);
+
+	if (chan->txdone_method	== TXDONE_BY_POLL && cl->knows_txdone)
+		chan->txdone_method = TXDONE_BY_ACK;
+
+	spin_unlock_irqrestore(&chan->lock, flags);
+
+	if (chan->mbox->ops->startup) {
+		ret = chan->mbox->ops->startup(chan);
+
+		if (ret) {
+			dev_err(dev, "Unable to startup the chan (%d)\n", ret);
+			mbox_free_channel(chan);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * mbox_bind_client - Request a mailbox channel.
+ * @chan: The mailbox channel to bind the client to.
+ * @cl: Identity of the client requesting the channel.
+ *
+ * The Client specifies its requirements and capabilities while asking for
+ * a mailbox channel. It can't be called from atomic context.
+ * The channel is exclusively allocated and can't be used by another
+ * client before the owner calls mbox_free_channel.
+ * After assignment, any packet received on this channel will be
+ * handed over to the client via the 'rx_callback'.
+ * The framework holds reference to the client, so the mbox_client
+ * structure shouldn't be modified until the mbox_free_channel returns.
+ *
+ * Return: 0 if the channel was assigned to the client successfully.
+ *         <0 for request failure.
+ */
+int mbox_bind_client(struct mbox_chan *chan, struct mbox_client *cl)
+{
+	int ret;
+
+	mutex_lock(&con_mutex);
+	ret = __mbox_bind_client(chan, cl);
+	mutex_unlock(&con_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mbox_bind_client);
+
 /**
  * mbox_request_channel - Request a mailbox channel.
  * @cl: Identity of the client requesting the channel.
@@ -340,7 +405,6 @@ struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index)
 	struct mbox_controller *mbox;
 	struct of_phandle_args spec;
 	struct mbox_chan *chan;
-	unsigned long flags;
 	int ret;
 
 	if (!dev || !dev->of_node) {
@@ -372,33 +436,9 @@ struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index)
 		return chan;
 	}
 
-	if (chan->cl || !try_module_get(mbox->dev->driver->owner)) {
-		dev_dbg(dev, "%s: mailbox not free\n", __func__);
-		mutex_unlock(&con_mutex);
-		return ERR_PTR(-EBUSY);
-	}
-
-	spin_lock_irqsave(&chan->lock, flags);
-	chan->msg_free = 0;
-	chan->msg_count = 0;
-	chan->active_req = NULL;
-	chan->cl = cl;
-	init_completion(&chan->tx_complete);
-
-	if (chan->txdone_method	== TXDONE_BY_POLL && cl->knows_txdone)
-		chan->txdone_method = TXDONE_BY_ACK;
-
-	spin_unlock_irqrestore(&chan->lock, flags);
-
-	if (chan->mbox->ops->startup) {
-		ret = chan->mbox->ops->startup(chan);
-
-		if (ret) {
-			dev_err(dev, "Unable to startup the chan (%d)\n", ret);
-			mbox_free_channel(chan);
-			chan = ERR_PTR(ret);
-		}
-	}
+	ret = __mbox_bind_client(chan, cl);
+	if (ret)
+		chan = ERR_PTR(ret);
 
 	mutex_unlock(&con_mutex);
 	return chan;
diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
index 098c82d87137..fa2ce3246b70 100644
--- a/drivers/mailbox/omap-mailbox.c
+++ b/drivers/mailbox/omap-mailbox.c
@@ -417,8 +417,6 @@ struct mbox_chan *omap_mbox_request_channel(struct mbox_client *cl,
 	struct device *dev = cl->dev;
 	struct omap_mbox *mbox = NULL;
 	struct omap_mbox_device *mdev;
-	struct mbox_chan *chan;
-	unsigned long flags;
 	int ret;
 
 	if (!dev)
@@ -441,23 +439,11 @@ struct mbox_chan *omap_mbox_request_channel(struct mbox_client *cl,
 	if (!mbox || !mbox->chan)
 		return ERR_PTR(-ENOENT);
 
-	chan = mbox->chan;
-	spin_lock_irqsave(&chan->lock, flags);
-	chan->msg_free = 0;
-	chan->msg_count = 0;
-	chan->active_req = NULL;
-	chan->cl = cl;
-	init_completion(&chan->tx_complete);
-	spin_unlock_irqrestore(&chan->lock, flags);
-
-	ret = chan->mbox->ops->startup(chan);
-	if (ret) {
-		pr_err("Unable to startup the chan (%d)\n", ret);
-		mbox_free_channel(chan);
-		chan = ERR_PTR(ret);
-	}
+	ret = mbox_bind_client(mbox->chan, cl);
+	if (ret)
+		return ERR_PTR(ret);
 
-	return chan;
+	return mbox->chan;
 }
 EXPORT_SYMBOL(omap_mbox_request_channel);
 
@@ -763,8 +749,7 @@ static int omap_mbox_probe(struct platform_device *pdev)
 
 		finfo->name = child->name;
 
-		if (of_find_property(child, "ti,mbox-send-noirq", NULL))
-			finfo->send_no_irq = true;
+		finfo->send_no_irq = of_property_read_bool(child, "ti,mbox-send-noirq");
 
 		if (finfo->tx_id >= num_fifos || finfo->rx_id >= num_fifos ||
 		    finfo->tx_usr >= num_users || finfo->rx_usr >= num_users)
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 105d46c9801b..a44d4b3e5beb 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -282,8 +282,7 @@ pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
 {
 	struct pcc_chan_info *pchan;
 	struct mbox_chan *chan;
-	struct device *dev;
-	unsigned long flags;
+	int rc;
 
 	if (subspace_id < 0 || subspace_id >= pcc_chan_count)
 		return ERR_PTR(-ENOENT);
@@ -294,32 +293,10 @@ pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
 		pr_err("Channel not found for idx: %d\n", subspace_id);
 		return ERR_PTR(-EBUSY);
 	}
-	dev = chan->mbox->dev;
 
-	spin_lock_irqsave(&chan->lock, flags);
-	chan->msg_free = 0;
-	chan->msg_count = 0;
-	chan->active_req = NULL;
-	chan->cl = cl;
-	init_completion(&chan->tx_complete);
-
-	if (chan->txdone_method == TXDONE_BY_POLL && cl->knows_txdone)
-		chan->txdone_method = TXDONE_BY_ACK;
-
-	spin_unlock_irqrestore(&chan->lock, flags);
-
-	if (pchan->plat_irq > 0) {
-		int rc;
-
-		rc = devm_request_irq(dev, pchan->plat_irq, pcc_mbox_irq, 0,
-				      MBOX_IRQ_NAME, chan);
-		if (unlikely(rc)) {
-			dev_err(dev, "failed to register PCC interrupt %d\n",
-				pchan->plat_irq);
-			pcc_mbox_free_channel(&pchan->chan);
-			return ERR_PTR(rc);
-		}
-	}
+	rc = mbox_bind_client(chan, cl);
+	if (rc)
+		return ERR_PTR(rc);
 
 	return &pchan->chan;
 }
@@ -333,23 +310,12 @@ EXPORT_SYMBOL_GPL(pcc_mbox_request_channel);
  */
 void pcc_mbox_free_channel(struct pcc_mbox_chan *pchan)
 {
-	struct pcc_chan_info *pchan_info = to_pcc_chan_info(pchan);
 	struct mbox_chan *chan = pchan->mchan;
-	unsigned long flags;
 
 	if (!chan || !chan->cl)
 		return;
 
-	if (pchan_info->plat_irq > 0)
-		devm_free_irq(chan->mbox->dev, pchan_info->plat_irq, chan);
-
-	spin_lock_irqsave(&chan->lock, flags);
-	chan->cl = NULL;
-	chan->active_req = NULL;
-	if (chan->txdone_method == TXDONE_BY_ACK)
-		chan->txdone_method = TXDONE_BY_POLL;
-
-	spin_unlock_irqrestore(&chan->lock, flags);
+	mbox_free_channel(chan);
 }
 EXPORT_SYMBOL_GPL(pcc_mbox_free_channel);
 
@@ -377,8 +343,48 @@ static int pcc_send_data(struct mbox_chan *chan, void *data)
 	return pcc_chan_reg_read_modify_write(&pchan->db);
 }
 
+/**
+ * pcc_startup - Called from Mailbox Controller code. Used here
+ *		to request the interrupt.
+ * @chan: Pointer to Mailbox channel to startup.
+ *
+ * Return: Err if something failed else 0 for success.
+ */
+static int pcc_startup(struct mbox_chan *chan)
+{
+	struct pcc_chan_info *pchan = chan->con_priv;
+	int rc;
+
+	if (pchan->plat_irq > 0) {
+		rc = devm_request_irq(chan->mbox->dev, pchan->plat_irq, pcc_mbox_irq, 0,
+				      MBOX_IRQ_NAME, chan);
+		if (unlikely(rc)) {
+			dev_err(chan->mbox->dev, "failed to register PCC interrupt %d\n",
+				pchan->plat_irq);
+			return rc;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * pcc_shutdown - Called from Mailbox Controller code. Used here
+ *		to free the interrupt.
+ * @chan: Pointer to Mailbox channel to shutdown.
+ */
+static void pcc_shutdown(struct mbox_chan *chan)
+{
+	struct pcc_chan_info *pchan = chan->con_priv;
+
+	if (pchan->plat_irq > 0)
+		devm_free_irq(chan->mbox->dev, pchan->plat_irq, chan);
+}
+
 static const struct mbox_chan_ops pcc_chan_ops = {
 	.send_data = pcc_send_data,
+	.startup = pcc_startup,
+	.shutdown = pcc_shutdown,
 };
 
 /**
diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
index 6bbf87c6d60b..002a135ee868 100644
--- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c
+++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
@@ -141,9 +141,7 @@ static int qcom_apcs_ipc_remove(struct platform_device *pdev)
 
 /* .data is the offset of the ipc register within the global block */
 static const struct of_device_id qcom_apcs_ipc_of_match[] = {
-	{ .compatible = "qcom,ipq5332-apcs-apps-global", .data = &ipq6018_apcs_data },
 	{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = &ipq6018_apcs_data },
-	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = &ipq6018_apcs_data },
 	{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = &msm8916_apcs_data },
 	{ .compatible = "qcom,msm8939-apcs-kpss-global", .data = &msm8916_apcs_data },
 	{ .compatible = "qcom,msm8953-apcs-kpss-global", .data = &msm8994_apcs_data },
@@ -153,15 +151,18 @@ static const struct of_device_id qcom_apcs_ipc_of_match[] = {
 	{ .compatible = "qcom,msm8998-apcs-hmss-global", .data = &msm8994_apcs_data },
 	{ .compatible = "qcom,qcm2290-apcs-hmss-global", .data = &msm8994_apcs_data },
 	{ .compatible = "qcom,qcs404-apcs-apps-global", .data = &msm8916_apcs_data },
-	{ .compatible = "qcom,sc7180-apss-shared", .data = &apps_shared_apcs_data },
-	{ .compatible = "qcom,sc8180x-apss-shared", .data = &apps_shared_apcs_data },
 	{ .compatible = "qcom,sdm660-apcs-hmss-global", .data = &msm8994_apcs_data },
 	{ .compatible = "qcom,sdm845-apss-shared", .data = &apps_shared_apcs_data },
 	{ .compatible = "qcom,sm4250-apcs-hmss-global", .data = &msm8994_apcs_data },
 	{ .compatible = "qcom,sm6125-apcs-hmss-global", .data = &msm8994_apcs_data },
-	{ .compatible = "qcom,sm8150-apss-shared", .data = &apps_shared_apcs_data },
 	{ .compatible = "qcom,sm6115-apcs-hmss-global", .data = &msm8994_apcs_data },
 	{ .compatible = "qcom,sdx55-apcs-gcc", .data = &sdx55_apcs_data },
+	/* Do not add any more entries using existing driver data */
+	{ .compatible = "qcom,ipq5332-apcs-apps-global", .data = &ipq6018_apcs_data },
+	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = &ipq6018_apcs_data },
+	{ .compatible = "qcom,sc7180-apss-shared", .data = &apps_shared_apcs_data },
+	{ .compatible = "qcom,sc8180x-apss-shared", .data = &apps_shared_apcs_data },
+	{ .compatible = "qcom,sm8150-apss-shared", .data = &apps_shared_apcs_data },
 	{}
 };
 MODULE_DEVICE_TABLE(of, qcom_apcs_ipc_of_match);
diff --git a/drivers/mailbox/rockchip-mailbox.c b/drivers/mailbox/rockchip-mailbox.c
index 28d7bfee2641..116286ecc5a0 100644
--- a/drivers/mailbox/rockchip-mailbox.c
+++ b/drivers/mailbox/rockchip-mailbox.c
@@ -248,7 +248,7 @@ static struct platform_driver rockchip_mbox_driver = {
 	.probe	= rockchip_mbox_probe,
 	.driver = {
 		.name = "rockchip-mailbox",
-		.of_match_table = of_match_ptr(rockchip_mbox_of_match),
+		.of_match_table = rockchip_mbox_of_match,
 	},
 };
 
diff --git a/include/dt-bindings/gce/mediatek,mt6795-gce.h b/include/dt-bindings/gce/mediatek,mt6795-gce.h
new file mode 100644
index 000000000000..97d5ba2d2b44
--- /dev/null
+++ b/include/dt-bindings/gce/mediatek,mt6795-gce.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2023 Collabora Ltd.
+ * Author: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ */
+#ifndef _DT_BINDINGS_GCE_MT6795_H
+#define _DT_BINDINGS_GCE_MT6795_H
+
+/* GCE HW thread priority */
+#define CMDQ_THR_PRIO_LOWEST			0
+#define CMDQ_THR_PRIO_NORMAL			1
+#define CMDQ_THR_PRIO_NORMAL_2			2
+#define CMDQ_THR_PRIO_MEDIUM			3
+#define CMDQ_THR_PRIO_MEDIUM_2			4
+#define CMDQ_THR_PRIO_HIGH			5
+#define CMDQ_THR_PRIO_HIGHER			6
+#define CMDQ_THR_PRIO_HIGHEST			7
+
+/* GCE SUBSYS */
+#define SUBSYS_1300XXXX				0
+#define SUBSYS_1400XXXX				1
+#define SUBSYS_1401XXXX				2
+#define SUBSYS_1402XXXX				3
+#define SUBSYS_1500XXXX				4
+#define SUBSYS_1600XXXX				5
+#define SUBSYS_1700XXXX				6
+#define SUBSYS_1800XXXX				7
+#define SUBSYS_1000XXXX				8
+#define SUBSYS_1001XXXX				9
+#define SUBSYS_1002XXXX				10
+#define SUBSYS_1003XXXX				11
+#define SUBSYS_1004XXXX				12
+#define SUBSYS_1005XXXX				13
+#define SUBSYS_1020XXXX				14
+#define SUBSYS_1021XXXX				15
+#define SUBSYS_1120XXXX				16
+#define SUBSYS_1121XXXX				17
+#define SUBSYS_1122XXXX				18
+#define SUBSYS_1123XXXX				19
+#define SUBSYS_1124XXXX				20
+#define SUBSYS_1125XXXX				21
+#define SUBSYS_1126XXXX				22
+
+/* GCE HW EVENT */
+#define CMDQ_EVENT_MDP_RDMA0_SOF		0
+#define CMDQ_EVENT_MDP_RDMA1_SOF		1
+#define CMDQ_EVENT_MDP_DSI0_TE_SOF		2
+#define CMDQ_EVENT_MDP_DSI1_TE_SOF		3
+#define CMDQ_EVENT_MDP_MVW_SOF			4
+#define CMDQ_EVENT_MDP_TDSHP0_SOF		5
+#define CMDQ_EVENT_MDP_TDSHP1_SOF		6
+#define CMDQ_EVENT_MDP_WDMA_SOF			7
+#define CMDQ_EVENT_MDP_WROT0_SOF		8
+#define CMDQ_EVENT_MDP_WROT1_SOF		9
+#define CMDQ_EVENT_MDP_CROP_SOF			10
+#define CMDQ_EVENT_DISP_OVL0_SOF		11
+#define CMDQ_EVENT_DISP_OVL1_SOF		12
+#define CMDQ_EVENT_DISP_RDMA0_SOF		13
+#define CMDQ_EVENT_DISP_RDMA1_SOF		14
+#define CMDQ_EVENT_DISP_RDMA2_SOF		15
+#define CMDQ_EVENT_DISP_WDMA0_SOF		16
+#define CMDQ_EVENT_DISP_WDMA1_SOF		17
+#define CMDQ_EVENT_DISP_COLOR0_SOF		18
+#define CMDQ_EVENT_DISP_COLOR1_SOF		19
+#define CMDQ_EVENT_DISP_AAL_SOF			20
+#define CMDQ_EVENT_DISP_GAMMA_SOF		21
+#define CMDQ_EVENT_DISP_UFOE_SOF		22
+#define CMDQ_EVENT_DISP_PWM0_SOF		23
+#define CMDQ_EVENT_DISP_PWM1_SOF		24
+#define CMDQ_EVENT_DISP_OD_SOF			25
+#define CMDQ_EVENT_MDP_RDMA0_EOF		26
+#define CMDQ_EVENT_MDP_RDMA1_EOF		27
+#define CMDQ_EVENT_MDP_RSZ0_EOF			28
+#define CMDQ_EVENT_MDP_RSZ1_EOF			29
+#define CMDQ_EVENT_MDP_RSZ2_EOF			30
+#define CMDQ_EVENT_MDP_TDSHP0_EOF		31
+#define CMDQ_EVENT_MDP_TDSHP1_EOF		32
+#define CMDQ_EVENT_MDP_WDMA_EOF			33
+#define CMDQ_EVENT_MDP_WROT0_WRITE_EOF		34
+#define CMDQ_EVENT_MDP_WROT0_READ_EOF		35
+#define CMDQ_EVENT_MDP_WROT1_WRITE_EOF		36
+#define CMDQ_EVENT_MDP_WROT1_READ_EOF		37
+#define CMDQ_EVENT_MDP_CROP_EOF			38
+#define CMDQ_EVENT_DISP_OVL0_EOF		39
+#define CMDQ_EVENT_DISP_OVL1_EOF		40
+#define CMDQ_EVENT_DISP_RDMA0_EOF		41
+#define CMDQ_EVENT_DISP_RDMA1_EOF		42
+#define CMDQ_EVENT_DISP_RDMA2_EOF		43
+#define CMDQ_EVENT_DISP_WDMA0_EOF		44
+#define CMDQ_EVENT_DISP_WDMA1_EOF		45
+#define CMDQ_EVENT_DISP_COLOR0_EOF		46
+#define CMDQ_EVENT_DISP_COLOR1_EOF		47
+#define CMDQ_EVENT_DISP_AAL_EOF			48
+#define CMDQ_EVENT_DISP_GAMMA_EOF		49
+#define CMDQ_EVENT_DISP_UFOE_EOF		50
+#define CMDQ_EVENT_DISP_DPI0_EOF		51
+#define CMDQ_EVENT_MUTEX0_STREAM_EOF		52
+#define CMDQ_EVENT_MUTEX1_STREAM_EOF		53
+#define CMDQ_EVENT_MUTEX2_STREAM_EOF		54
+#define CMDQ_EVENT_MUTEX3_STREAM_EOF		55
+#define CMDQ_EVENT_MUTEX4_STREAM_EOF		56
+#define CMDQ_EVENT_MUTEX5_STREAM_EOF		57
+#define CMDQ_EVENT_MUTEX6_STREAM_EOF		58
+#define CMDQ_EVENT_MUTEX7_STREAM_EOF		59
+#define CMDQ_EVENT_MUTEX8_STREAM_EOF		60
+#define CMDQ_EVENT_MUTEX9_STREAM_EOF		61
+#define CMDQ_EVENT_DISP_RDMA0_UNDERRUN		62
+#define CMDQ_EVENT_DISP_RDMA1_UNDERRUN		63
+#define CMDQ_EVENT_DISP_RDMA2_UNDERRUN		64
+#define CMDQ_EVENT_ISP_PASS2_2_EOF		129
+#define CMDQ_EVENT_ISP_PASS2_1_EOF		130
+#define CMDQ_EVENT_ISP_PASS2_0_EOF		131
+#define CMDQ_EVENT_ISP_PASS1_1_EOF		132
+#define CMDQ_EVENT_ISP_PASS1_0_EOF		133
+#define CMDQ_EVENT_CAMSV_2_PASS1_EOF		134
+#define CMDQ_EVENT_CAMSV_1_PASS1_EOF		135
+#define CMDQ_EVENT_SENINF_CAM1_2_3_FIFO_FULL	136
+#define CMDQ_EVENT_SENINF_CAM0_FIFO_FULL	137
+#define CMDQ_EVENT_JPGENC_PASS2_EOF		257
+#define CMDQ_EVENT_JPGENC_PASS1_EOF		258
+#define CMDQ_EVENT_JPGDEC_EOF			259
+
+#endif
diff --git a/include/linux/mailbox_client.h b/include/linux/mailbox_client.h
index 65229a45590f..734694912ef7 100644
--- a/include/linux/mailbox_client.h
+++ b/include/linux/mailbox_client.h
@@ -37,6 +37,7 @@ struct mbox_client {
 	void (*tx_done)(struct mbox_client *cl, void *mssg, int r);
 };
 
+int mbox_bind_client(struct mbox_chan *chan, struct mbox_client *cl);
 struct mbox_chan *mbox_request_channel_byname(struct mbox_client *cl,
 					      const char *name);
 struct mbox_chan *mbox_request_channel(struct mbox_client *cl, int index);