Adding upstream version 6.9.7.upstream/6.9.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

18 files changed, 283 insertions, 344 deletions

diff --git a/drivers/net/ipa/ipa.h b/drivers/net/ipa/ipa.h
index f3355e040a..334cd62cf2 100644
--- a/drivers/net/ipa/ipa.h
+++ b/drivers/net/ipa/ipa.h
@@ -21,7 +21,6 @@
 struct clk;
 struct icc_path;
 struct net_device;
-struct platform_device;
 
 struct ipa_power;
 struct ipa_smp2p;
@@ -31,7 +30,7 @@ struct ipa_interrupt;
  * struct ipa - IPA information
  * @gsi:		Embedded GSI structure
  * @version:		IPA hardware version
- * @pdev:		Platform device
+ * @dev:		IPA device pointer
  * @completion:		Used to signal pipeline clear transfer complete
  * @nb:			Notifier block used for remoteproc SSR
  * @notifier:		Remoteproc SSR notifier
@@ -79,7 +78,7 @@ struct ipa_interrupt;
 struct ipa {
 	struct gsi gsi;
 	enum ipa_version version;
-	struct platform_device *pdev;
+	struct device *dev;
 	struct completion completion;
 	struct notifier_block nb;
 	void *notifier;
diff --git a/drivers/net/ipa/ipa_cmd.c b/drivers/net/ipa/ipa_cmd.c
index f1419fbd77..39219963db 100644
--- a/drivers/net/ipa/ipa_cmd.c
+++ b/drivers/net/ipa/ipa_cmd.c
@@ -174,7 +174,7 @@ bool ipa_cmd_table_init_valid(struct ipa *ipa, const struct ipa_mem *mem,
 	u32 offset_max = field_max(IP_FLTRT_FLAGS_NHASH_ADDR_FMASK);
 	u32 size_max = field_max(IP_FLTRT_FLAGS_NHASH_SIZE_FMASK);
 	const char *table = route ? "route" : "filter";
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	u32 size;
 
 	size = route ? ipa->route_count : ipa->filter_count + 1;
@@ -204,7 +204,7 @@ bool ipa_cmd_table_init_valid(struct ipa *ipa, const struct ipa_mem *mem,
 /* Validate the memory region that holds headers */
 static bool ipa_cmd_header_init_local_valid(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	const struct ipa_mem *mem;
 	u32 offset_max;
 	u32 size_max;
@@ -256,7 +256,7 @@ static bool ipa_cmd_register_write_offset_valid(struct ipa *ipa,
 						const char *name, u32 offset)
 {
 	struct ipa_cmd_register_write *payload;
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	u32 offset_max;
 	u32 bit_count;
 
diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index afa1d56d90..dd49094161 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -233,8 +233,8 @@ static bool ipa_endpoint_data_valid_one(struct ipa *ipa, u32 count,
 			    const struct ipa_gsi_endpoint_data *data)
 {
 	const struct ipa_gsi_endpoint_data *other_data;
-	struct device *dev = &ipa->pdev->dev;
 	enum ipa_endpoint_name other_name;
+	struct device *dev = ipa->dev;
 
 	if (ipa_gsi_endpoint_data_empty(data))
 		return true;
@@ -388,7 +388,7 @@ static u32 ipa_endpoint_max(struct ipa *ipa, u32 count,
 			    const struct ipa_gsi_endpoint_data *data)
 {
 	const struct ipa_gsi_endpoint_data *dp = data;
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	enum ipa_endpoint_name name;
 	u32 max;
 
@@ -606,7 +606,7 @@ int ipa_endpoint_modem_exception_reset_all(struct ipa *ipa)
 	count = ipa->modem_tx_count + ipa_cmd_pipeline_clear_count();
 	trans = ipa_cmd_trans_alloc(ipa, count);
 	if (!trans) {
-		dev_err(&ipa->pdev->dev,
+		dev_err(ipa->dev,
 			"no transaction to reset modem exception endpoints\n");
 		return -EBUSY;
 	}
@@ -1498,8 +1498,7 @@ ipa_endpoint_status_tag_valid(struct ipa_endpoint *endpoint, const void *data)
 	if (endpoint_id == command_endpoint->endpoint_id) {
 		complete(&ipa->completion);
 	} else {
-		dev_err(&ipa->pdev->dev,
-			"unexpected tagged packet from endpoint %u\n",
+		dev_err(ipa->dev, "unexpected tagged packet from endpoint %u\n",
 			endpoint_id);
 	}
 
@@ -1536,6 +1535,7 @@ static void ipa_endpoint_status_parse(struct ipa_endpoint *endpoint,
 	void *data = page_address(page) + NET_SKB_PAD;
 	u32 unused = buffer_size - total_len;
 	struct ipa *ipa = endpoint->ipa;
+	struct device *dev = ipa->dev;
 	u32 resid = total_len;
 
 	while (resid) {
@@ -1544,7 +1544,7 @@ static void ipa_endpoint_status_parse(struct ipa_endpoint *endpoint,
 		u32 len;
 
 		if (resid < IPA_STATUS_SIZE) {
-			dev_err(&endpoint->ipa->pdev->dev,
+			dev_err(dev,
 				"short message (%u bytes < %zu byte status)\n",
 				resid, IPA_STATUS_SIZE);
 			break;
@@ -1666,8 +1666,8 @@ void ipa_endpoint_default_route_clear(struct ipa *ipa)
  */
 static int ipa_endpoint_reset_rx_aggr(struct ipa_endpoint *endpoint)
 {
-	struct device *dev = &endpoint->ipa->pdev->dev;
 	struct ipa *ipa = endpoint->ipa;
+	struct device *dev = ipa->dev;
 	struct gsi *gsi = &ipa->gsi;
 	bool suspended = false;
 	dma_addr_t addr;
@@ -1769,7 +1769,7 @@ static void ipa_endpoint_reset(struct ipa_endpoint *endpoint)
 		gsi_channel_reset(&ipa->gsi, channel_id, true);
 
 	if (ret)
-		dev_err(&ipa->pdev->dev,
+		dev_err(ipa->dev,
 			"error %d resetting channel %u for endpoint %u\n",
 			ret, endpoint->channel_id, endpoint->endpoint_id);
 }
@@ -1817,7 +1817,7 @@ int ipa_endpoint_enable_one(struct ipa_endpoint *endpoint)
 
 	ret = gsi_channel_start(gsi, endpoint->channel_id);
 	if (ret) {
-		dev_err(&ipa->pdev->dev,
+		dev_err(ipa->dev,
 			"error %d starting %cX channel %u for endpoint %u\n",
 			ret, endpoint->toward_ipa ? 'T' : 'R',
 			endpoint->channel_id, endpoint_id);
@@ -1854,14 +1854,13 @@ void ipa_endpoint_disable_one(struct ipa_endpoint *endpoint)
 	/* Note that if stop fails, the channel's state is not well-defined */
 	ret = gsi_channel_stop(gsi, endpoint->channel_id);
 	if (ret)
-		dev_err(&ipa->pdev->dev,
-			"error %d attempting to stop endpoint %u\n", ret,
-			endpoint_id);
+		dev_err(ipa->dev, "error %d attempting to stop endpoint %u\n",
+			ret, endpoint_id);
 }
 
 void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint)
 {
-	struct device *dev = &endpoint->ipa->pdev->dev;
+	struct device *dev = endpoint->ipa->dev;
 	struct gsi *gsi = &endpoint->ipa->gsi;
 	int ret;
 
@@ -1881,7 +1880,7 @@ void ipa_endpoint_suspend_one(struct ipa_endpoint *endpoint)
 
 void ipa_endpoint_resume_one(struct ipa_endpoint *endpoint)
 {
-	struct device *dev = &endpoint->ipa->pdev->dev;
+	struct device *dev = endpoint->ipa->dev;
 	struct gsi *gsi = &endpoint->ipa->gsi;
 	int ret;
 
@@ -1983,7 +1982,7 @@ void ipa_endpoint_deconfig(struct ipa *ipa)
 
 int ipa_endpoint_config(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	const struct reg *reg;
 	u32 endpoint_id;
 	u32 hw_limit;
diff --git a/drivers/net/ipa/ipa_interrupt.c b/drivers/net/ipa/ipa_interrupt.c
index a78c692f2d..c3e8784d51 100644
--- a/drivers/net/ipa/ipa_interrupt.c
+++ b/drivers/net/ipa/ipa_interrupt.c
@@ -19,6 +19,7 @@
  * time only these three are supported.
  */
 
+#include <linux/platform_device.h>
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
@@ -43,6 +44,30 @@ struct ipa_interrupt {
 	u32 enabled;
 };
 
+/* Clear the suspend interrupt for all endpoints that signaled it */
+static void ipa_interrupt_suspend_clear_all(struct ipa_interrupt *interrupt)
+{
+	struct ipa *ipa = interrupt->ipa;
+	u32 unit_count;
+	u32 unit;
+
+	unit_count = DIV_ROUND_UP(ipa->endpoint_count, 32);
+	for (unit = 0; unit < unit_count; unit++) {
+		const struct reg *reg;
+		u32 val;
+
+		reg = ipa_reg(ipa, IRQ_SUSPEND_INFO);
+		val = ioread32(ipa->reg_virt + reg_n_offset(reg, unit));
+
+		/* SUSPEND interrupt status isn't cleared on IPA version 3.0 */
+		if (!val || ipa->version == IPA_VERSION_3_0)
+			continue;
+
+		reg = ipa_reg(ipa, IRQ_SUSPEND_CLR);
+		iowrite32(val, ipa->reg_virt + reg_n_offset(reg, unit));
+	}
+}
+
 /* Process a particular interrupt type that has been received */
 static void ipa_interrupt_process(struct ipa_interrupt *interrupt, u32 irq_id)
 {
@@ -70,7 +95,7 @@ static void ipa_interrupt_process(struct ipa_interrupt *interrupt, u32 irq_id)
 		 * caused the interrupt, so defer clearing until after
 		 * the handler has been called.
 		 */
-		ipa_power_suspend_handler(ipa, irq_id);
+		ipa_interrupt_suspend_clear_all(interrupt);
 		fallthrough;
 
 	default:	/* Silently ignore (and clear) any other condition */
@@ -85,14 +110,13 @@ static irqreturn_t ipa_isr_thread(int irq, void *dev_id)
 	struct ipa_interrupt *interrupt = dev_id;
 	struct ipa *ipa = interrupt->ipa;
 	u32 enabled = interrupt->enabled;
+	struct device *dev = ipa->dev;
 	const struct reg *reg;
-	struct device *dev;
 	u32 pending;
 	u32 offset;
 	u32 mask;
 	int ret;
 
-	dev = &ipa->pdev->dev;
 	ret = pm_runtime_get_sync(dev);
 	if (WARN_ON(ret < 0))
 		goto out_power_put;
@@ -205,30 +229,6 @@ ipa_interrupt_suspend_disable(struct ipa_interrupt *interrupt, u32 endpoint_id)
 	ipa_interrupt_suspend_control(interrupt, endpoint_id, false);
 }
 
-/* Clear the suspend interrupt for all endpoints that signaled it */
-void ipa_interrupt_suspend_clear_all(struct ipa_interrupt *interrupt)
-{
-	struct ipa *ipa = interrupt->ipa;
-	u32 unit_count;
-	u32 unit;
-
-	unit_count = DIV_ROUND_UP(ipa->endpoint_count, 32);
-	for (unit = 0; unit < unit_count; unit++) {
-		const struct reg *reg;
-		u32 val;
-
-		reg = ipa_reg(ipa, IRQ_SUSPEND_INFO);
-		val = ioread32(ipa->reg_virt + reg_n_offset(reg, unit));
-
-		/* SUSPEND interrupt status isn't cleared on IPA version 3.0 */
-		if (ipa->version == IPA_VERSION_3_0)
-			continue;
-
-		reg = ipa_reg(ipa, IRQ_SUSPEND_CLR);
-		iowrite32(val, ipa->reg_virt + reg_n_offset(reg, unit));
-	}
-}
-
 /* Simulate arrival of an IPA TX_SUSPEND interrupt */
 void ipa_interrupt_simulate_suspend(struct ipa_interrupt *interrupt)
 {
@@ -236,29 +236,17 @@ void ipa_interrupt_simulate_suspend(struct ipa_interrupt *interrupt)
 }
 
 /* Configure the IPA interrupt framework */
-struct ipa_interrupt *ipa_interrupt_config(struct ipa *ipa)
+int ipa_interrupt_config(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
-	struct ipa_interrupt *interrupt;
+	struct ipa_interrupt *interrupt = ipa->interrupt;
+	unsigned int irq = interrupt->irq;
+	struct device *dev = ipa->dev;
 	const struct reg *reg;
-	unsigned int irq;
 	int ret;
 
-	ret = platform_get_irq_byname(ipa->pdev, "ipa");
-	if (ret <= 0) {
-		dev_err(dev, "DT error %d getting \"ipa\" IRQ property\n",
-			ret);
-		return ERR_PTR(ret ? : -EINVAL);
-	}
-	irq = ret;
-
-	interrupt = kzalloc(sizeof(*interrupt), GFP_KERNEL);
-	if (!interrupt)
-		return ERR_PTR(-ENOMEM);
 	interrupt->ipa = ipa;
-	interrupt->irq = irq;
 
-	/* Start with all IPA interrupts disabled */
+	/* Disable all IPA interrupt types */
 	reg = ipa_reg(ipa, IPA_IRQ_EN);
 	iowrite32(0, ipa->reg_virt + reg_offset(reg));
 
@@ -271,26 +259,59 @@ struct ipa_interrupt *ipa_interrupt_config(struct ipa *ipa)
 
 	ret = dev_pm_set_wake_irq(dev, irq);
 	if (ret) {
-		dev_err(dev, "error %d registering \"ipa\" IRQ as wakeirq\n", ret);
+		dev_err(dev, "error %d registering \"ipa\" IRQ as wakeirq\n",
+			ret);
 		goto err_free_irq;
 	}
 
-	return interrupt;
+	ipa->interrupt = interrupt;
+
+	return 0;
 
 err_free_irq:
 	free_irq(interrupt->irq, interrupt);
 err_kfree:
 	kfree(interrupt);
 
-	return ERR_PTR(ret);
+	return ret;
 }
 
 /* Inverse of ipa_interrupt_config() */
-void ipa_interrupt_deconfig(struct ipa_interrupt *interrupt)
+void ipa_interrupt_deconfig(struct ipa *ipa)
 {
-	struct device *dev = &interrupt->ipa->pdev->dev;
+	struct ipa_interrupt *interrupt = ipa->interrupt;
+	struct device *dev = ipa->dev;
+
+	ipa->interrupt = NULL;
 
 	dev_pm_clear_wake_irq(dev);
 	free_irq(interrupt->irq, interrupt);
+}
+
+/* Initialize the IPA interrupt structure */
+struct ipa_interrupt *ipa_interrupt_init(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ipa_interrupt *interrupt;
+	int irq;
+
+	irq = platform_get_irq_byname(pdev, "ipa");
+	if (irq <= 0) {
+		dev_err(dev, "DT error %d getting \"ipa\" IRQ property\n", irq);
+
+		return ERR_PTR(irq ? : -EINVAL);
+	}
+
+	interrupt = kzalloc(sizeof(*interrupt), GFP_KERNEL);
+	if (!interrupt)
+		return ERR_PTR(-ENOMEM);
+	interrupt->irq = irq;
+
+	return interrupt;
+}
+
+/* Inverse of ipa_interrupt_init() */
+void ipa_interrupt_exit(struct ipa_interrupt *interrupt)
+{
 	kfree(interrupt);
 }
diff --git a/drivers/net/ipa/ipa_interrupt.h b/drivers/net/ipa/ipa_interrupt.h
index 12e3e798cc..f3f4f4330a 100644
--- a/drivers/net/ipa/ipa_interrupt.h
+++ b/drivers/net/ipa/ipa_interrupt.h
@@ -35,14 +35,6 @@ void ipa_interrupt_suspend_disable(struct ipa_interrupt *interrupt,
 				   u32 endpoint_id);
 
 /**
- * ipa_interrupt_suspend_clear_all - clear all suspend interrupts
- * @interrupt:	IPA interrupt structure
- *
- * Clear the TX_SUSPEND interrupt for all endpoints that signaled it.
- */
-void ipa_interrupt_suspend_clear_all(struct ipa_interrupt *interrupt);
-
-/**
  * ipa_interrupt_simulate_suspend() - Simulate TX_SUSPEND IPA interrupt
  * @interrupt:	IPA interrupt structure
  *
@@ -84,17 +76,31 @@ void ipa_interrupt_irq_enable(struct ipa *ipa);
 void ipa_interrupt_irq_disable(struct ipa *ipa);
 
 /**
- * ipa_interrupt_config() - Configure the IPA interrupt framework
+ * ipa_interrupt_config() - Configure IPA interrupts
  * @ipa:	IPA pointer
  *
- * Return:	Pointer to IPA SMP2P info, or a pointer-coded error
+ * Return:	0 if successful, or a negative error code
  */
-struct ipa_interrupt *ipa_interrupt_config(struct ipa *ipa);
+int ipa_interrupt_config(struct ipa *ipa);
 
 /**
  * ipa_interrupt_deconfig() - Inverse of ipa_interrupt_config()
+ * @ipa:	IPA pointer
+ */
+void ipa_interrupt_deconfig(struct ipa *ipa);
+
+/**
+ * ipa_interrupt_init() - Initialize the IPA interrupt structure
+ * @pdev:	IPA platform device pointer
+ *
+ * Return:	Pointer to an IPA interrupt structure, or a pointer-coded error
+ */
+struct ipa_interrupt *ipa_interrupt_init(struct platform_device *pdev);
+
+/**
+ * ipa_interrupt_exit() - Inverse of ipa_interrupt_init()
  * @interrupt:	IPA interrupt structure
  */
-void ipa_interrupt_deconfig(struct ipa_interrupt *interrupt);
+void ipa_interrupt_exit(struct ipa_interrupt *interrupt);
 
 #endif /* _IPA_INTERRUPT_H_ */
diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c
index 00475fd7a2..57b241417e 100644
--- a/drivers/net/ipa/ipa_main.c
+++ b/drivers/net/ipa/ipa_main.c
@@ -7,7 +7,6 @@
 #include <linux/types.h>
 #include <linux/atomic.h>
 #include <linux/bitfield.h>
-#include <linux/device.h>
 #include <linux/bug.h>
 #include <linux/io.h>
 #include <linux/firmware.h>
@@ -114,7 +113,7 @@ int ipa_setup(struct ipa *ipa)
 {
 	struct ipa_endpoint *exception_endpoint;
 	struct ipa_endpoint *command_endpoint;
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	int ret;
 
 	ret = gsi_setup(&ipa->gsi);
@@ -542,12 +541,9 @@ static int ipa_config(struct ipa *ipa, const struct ipa_data *data)
 	if (ret)
 		goto err_hardware_deconfig;
 
-	ipa->interrupt = ipa_interrupt_config(ipa);
-	if (IS_ERR(ipa->interrupt)) {
-		ret = PTR_ERR(ipa->interrupt);
-		ipa->interrupt = NULL;
+	ret = ipa_interrupt_config(ipa);
+	if (ret)
 		goto err_mem_deconfig;
-	}
 
 	ipa_uc_config(ipa);
 
@@ -572,8 +568,7 @@ err_endpoint_deconfig:
 	ipa_endpoint_deconfig(ipa);
 err_uc_deconfig:
 	ipa_uc_deconfig(ipa);
-	ipa_interrupt_deconfig(ipa->interrupt);
-	ipa->interrupt = NULL;
+	ipa_interrupt_deconfig(ipa);
 err_mem_deconfig:
 	ipa_mem_deconfig(ipa);
 err_hardware_deconfig:
@@ -591,8 +586,7 @@ static void ipa_deconfig(struct ipa *ipa)
 	ipa_modem_deconfig(ipa);
 	ipa_endpoint_deconfig(ipa);
 	ipa_uc_deconfig(ipa);
-	ipa_interrupt_deconfig(ipa->interrupt);
-	ipa->interrupt = NULL;
+	ipa_interrupt_deconfig(ipa);
 	ipa_mem_deconfig(ipa);
 	ipa_hardware_deconfig(ipa);
 }
@@ -808,6 +802,7 @@ out_self:
 static int ipa_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	struct ipa_interrupt *interrupt;
 	enum ipa_firmware_loader loader;
 	const struct ipa_data *data;
 	struct ipa_power *power;
@@ -839,12 +834,21 @@ static int ipa_probe(struct platform_device *pdev)
 	if (loader == IPA_LOADER_DEFER)
 		return -EPROBE_DEFER;
 
-	/* The clock and interconnects might not be ready when we're
-	 * probed, so might return -EPROBE_DEFER.
+	/* The IPA interrupt might not be ready when we're probed, so this
+	 * might return -EPROBE_DEFER.
+	 */
+	interrupt = ipa_interrupt_init(pdev);
+	if (IS_ERR(interrupt))
+		return PTR_ERR(interrupt);
+
+	/* The clock and interconnects might not be ready when we're probed,
+	 * so this might return -EPROBE_DEFER.
 	 */
 	power = ipa_power_init(dev, data->power_data);
-	if (IS_ERR(power))
-		return PTR_ERR(power);
+	if (IS_ERR(power)) {
+		ret = PTR_ERR(power);
+		goto err_interrupt_exit;
+	}
 
 	/* No more EPROBE_DEFER.  Allocate and initialize the IPA structure */
 	ipa = kzalloc(sizeof(*ipa), GFP_KERNEL);
@@ -853,18 +857,19 @@ static int ipa_probe(struct platform_device *pdev)
 		goto err_power_exit;
 	}
 
-	ipa->pdev = pdev;
+	ipa->dev = dev;
 	dev_set_drvdata(dev, ipa);
+	ipa->interrupt = interrupt;
 	ipa->power = power;
 	ipa->version = data->version;
 	ipa->modem_route_count = data->modem_route_count;
 	init_completion(&ipa->completion);
 
-	ret = ipa_reg_init(ipa);
+	ret = ipa_reg_init(ipa, pdev);
 	if (ret)
 		goto err_kfree_ipa;
 
-	ret = ipa_mem_init(ipa, data->mem_data);
+	ret = ipa_mem_init(ipa, pdev, data->mem_data);
 	if (ret)
 		goto err_reg_exit;
 
@@ -882,7 +887,7 @@ static int ipa_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_endpoint_exit;
 
-	ret = ipa_smp2p_init(ipa, loader == IPA_LOADER_MODEM);
+	ret = ipa_smp2p_init(ipa, pdev, loader == IPA_LOADER_MODEM);
 	if (ret)
 		goto err_table_exit;
 
@@ -939,17 +944,27 @@ err_kfree_ipa:
 	kfree(ipa);
 err_power_exit:
 	ipa_power_exit(power);
+err_interrupt_exit:
+	ipa_interrupt_exit(interrupt);
 
 	return ret;
 }
 
 static void ipa_remove(struct platform_device *pdev)
 {
-	struct ipa *ipa = dev_get_drvdata(&pdev->dev);
-	struct ipa_power *power = ipa->power;
-	struct device *dev = &pdev->dev;
+	struct ipa_interrupt *interrupt;
+	struct ipa_power *power;
+	struct device *dev;
+	struct ipa *ipa;
 	int ret;
 
+	ipa = dev_get_drvdata(&pdev->dev);
+	dev = ipa->dev;
+	WARN_ON(dev != &pdev->dev);
+
+	power = ipa->power;
+	interrupt = ipa->interrupt;
+
 	/* Prevent the modem from triggering a call to ipa_setup().  This
 	 * also ensures a modem-initiated setup that's underway completes.
 	 */
@@ -991,6 +1006,7 @@ out_power_put:
 	ipa_reg_exit(ipa);
 	kfree(ipa);
 	ipa_power_exit(power);
+	ipa_interrupt_exit(interrupt);
 
 	dev_info(dev, "IPA driver removed");
 }
diff --git a/drivers/net/ipa/ipa_mem.c b/drivers/net/ipa/ipa_mem.c
index 694960537e..709f061ede 100644
--- a/drivers/net/ipa/ipa_mem.c
+++ b/drivers/net/ipa/ipa_mem.c
@@ -9,6 +9,7 @@
 #include <linux/bug.h>
 #include <linux/dma-mapping.h>
 #include <linux/iommu.h>
+#include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/soc/qcom/smem.h>
 
@@ -75,9 +76,9 @@ ipa_mem_zero_region_add(struct gsi_trans *trans, enum ipa_mem_id mem_id)
 int ipa_mem_setup(struct ipa *ipa)
 {
 	dma_addr_t addr = ipa->zero_addr;
-	const struct reg *reg;
 	const struct ipa_mem *mem;
 	struct gsi_trans *trans;
+	const struct reg *reg;
 	u32 offset;
 	u16 size;
 	u32 val;
@@ -87,7 +88,7 @@ int ipa_mem_setup(struct ipa *ipa)
 	 */
 	trans = ipa_cmd_trans_alloc(ipa, 4);
 	if (!trans) {
-		dev_err(&ipa->pdev->dev, "no transaction for memory setup\n");
+		dev_err(ipa->dev, "no transaction for memory setup\n");
 		return -EBUSY;
 	}
 
@@ -217,8 +218,8 @@ static bool ipa_mem_id_required(struct ipa *ipa, enum ipa_mem_id mem_id)
 
 static bool ipa_mem_valid_one(struct ipa *ipa, const struct ipa_mem *mem)
 {
-	struct device *dev = &ipa->pdev->dev;
 	enum ipa_mem_id mem_id = mem->id;
+	struct device *dev = ipa->dev;
 	u16 size_multiple;
 
 	/* Make sure the memory region is valid for this version of IPA */
@@ -254,7 +255,7 @@ static bool ipa_mem_valid_one(struct ipa *ipa, const struct ipa_mem *mem)
 static bool ipa_mem_valid(struct ipa *ipa, const struct ipa_mem_data *mem_data)
 {
 	DECLARE_BITMAP(regions, IPA_MEM_COUNT) = { };
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	enum ipa_mem_id mem_id;
 	u32 i;
 
@@ -290,7 +291,7 @@ static bool ipa_mem_valid(struct ipa *ipa, const struct ipa_mem_data *mem_data)
 /* Do all memory regions fit within the IPA local memory? */
 static bool ipa_mem_size_valid(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	u32 limit = ipa->mem_size;
 	u32 i;
 
@@ -317,7 +318,7 @@ static bool ipa_mem_size_valid(struct ipa *ipa)
  */
 int ipa_mem_config(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	const struct ipa_mem *mem;
 	const struct reg *reg;
 	dma_addr_t addr;
@@ -393,7 +394,7 @@ err_dma_free:
 /* Inverse of ipa_mem_config() */
 void ipa_mem_deconfig(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 
 	dma_free_coherent(dev, ipa->zero_size, ipa->zero_virt, ipa->zero_addr);
 	ipa->zero_size = 0;
@@ -420,8 +421,7 @@ int ipa_mem_zero_modem(struct ipa *ipa)
 	 */
 	trans = ipa_cmd_trans_alloc(ipa, 3);
 	if (!trans) {
-		dev_err(&ipa->pdev->dev,
-			"no transaction to zero modem memory\n");
+		dev_err(ipa->dev, "no transaction to zero modem memory\n");
 		return -EBUSY;
 	}
 
@@ -452,7 +452,7 @@ int ipa_mem_zero_modem(struct ipa *ipa)
  */
 static int ipa_imem_init(struct ipa *ipa, unsigned long addr, size_t size)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	struct iommu_domain *domain;
 	unsigned long iova;
 	phys_addr_t phys;
@@ -485,13 +485,12 @@ static int ipa_imem_init(struct ipa *ipa, unsigned long addr, size_t size)
 
 static void ipa_imem_exit(struct ipa *ipa)
 {
+	struct device *dev = ipa->dev;
 	struct iommu_domain *domain;
-	struct device *dev;
 
 	if (!ipa->imem_size)
 		return;
 
-	dev = &ipa->pdev->dev;
 	domain = iommu_get_domain_for_dev(dev);
 	if (domain) {
 		size_t size;
@@ -527,7 +526,7 @@ static void ipa_imem_exit(struct ipa *ipa)
  */
 static int ipa_smem_init(struct ipa *ipa, u32 item, size_t size)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	struct iommu_domain *domain;
 	unsigned long iova;
 	phys_addr_t phys;
@@ -594,7 +593,7 @@ static int ipa_smem_init(struct ipa *ipa, u32 item, size_t size)
 
 static void ipa_smem_exit(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	struct iommu_domain *domain;
 
 	domain = iommu_get_domain_for_dev(dev);
@@ -615,9 +614,10 @@ static void ipa_smem_exit(struct ipa *ipa)
 }
 
 /* Perform memory region-related initialization */
-int ipa_mem_init(struct ipa *ipa, const struct ipa_mem_data *mem_data)
+int ipa_mem_init(struct ipa *ipa, struct platform_device *pdev,
+		 const struct ipa_mem_data *mem_data)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = &pdev->dev;
 	struct resource *res;
 	int ret;
 
@@ -634,14 +634,13 @@ int ipa_mem_init(struct ipa *ipa, const struct ipa_mem_data *mem_data)
 	if (!ipa_table_mem_valid(ipa, true))
 		return -EINVAL;
 
-	ret = dma_set_mask_and_coherent(&ipa->pdev->dev, DMA_BIT_MASK(64));
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
 	if (ret) {
 		dev_err(dev, "error %d setting DMA mask\n", ret);
 		return ret;
 	}
 
-	res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM,
-					   "ipa-shared");
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ipa-shared");
 	if (!res) {
 		dev_err(dev,
 			"DT error getting \"ipa-shared\" memory property\n");
diff --git a/drivers/net/ipa/ipa_mem.h b/drivers/net/ipa/ipa_mem.h
index 868e9c20e8..28aad00a15 100644
--- a/drivers/net/ipa/ipa_mem.h
+++ b/drivers/net/ipa/ipa_mem.h
@@ -6,6 +6,8 @@
 #ifndef _IPA_MEM_H_
 #define _IPA_MEM_H_
 
+struct platform_device;
+
 struct ipa;
 struct ipa_mem_data;
 
@@ -100,7 +102,8 @@ int ipa_mem_setup(struct ipa *ipa);	/* No ipa_mem_teardown() needed */
 
 int ipa_mem_zero_modem(struct ipa *ipa);
 
-int ipa_mem_init(struct ipa *ipa, const struct ipa_mem_data *mem_data);
+int ipa_mem_init(struct ipa *ipa, struct platform_device *pdev,
+		 const struct ipa_mem_data *mem_data);
 void ipa_mem_exit(struct ipa *ipa);
 
 #endif /* _IPA_MEM_H_ */
diff --git a/drivers/net/ipa/ipa_modem.c b/drivers/net/ipa/ipa_modem.c
index 423422a2a4..c27ca3f27f 100644
--- a/drivers/net/ipa/ipa_modem.c
+++ b/drivers/net/ipa/ipa_modem.c
@@ -39,10 +39,14 @@ enum ipa_modem_state {
 /**
  * struct ipa_priv - IPA network device private data
  * @ipa:	IPA pointer
+ * @tx:		Transmit endpoint pointer
+ * @rx:		Receive endpoint pointer
  * @work:	Work structure used to wake the modem netdev TX queue
  */
 struct ipa_priv {
 	struct ipa *ipa;
+	struct ipa_endpoint *tx;
+	struct ipa_endpoint *rx;
 	struct work_struct work;
 };
 
@@ -54,16 +58,16 @@ static int ipa_open(struct net_device *netdev)
 	struct device *dev;
 	int ret;
 
-	dev = &ipa->pdev->dev;
+	dev = ipa->dev;
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0)
 		goto err_power_put;
 
-	ret = ipa_endpoint_enable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]);
+	ret = ipa_endpoint_enable_one(priv->tx);
 	if (ret)
 		goto err_power_put;
 
-	ret = ipa_endpoint_enable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]);
+	ret = ipa_endpoint_enable_one(priv->rx);
 	if (ret)
 		goto err_disable_tx;
 
@@ -75,7 +79,7 @@ static int ipa_open(struct net_device *netdev)
 	return 0;
 
 err_disable_tx:
-	ipa_endpoint_disable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]);
+	ipa_endpoint_disable_one(priv->tx);
 err_power_put:
 	pm_runtime_put_noidle(dev);
 
@@ -90,15 +94,15 @@ static int ipa_stop(struct net_device *netdev)
 	struct device *dev;
 	int ret;
 
-	dev = &ipa->pdev->dev;
+	dev = ipa->dev;
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0)
 		goto out_power_put;
 
 	netif_stop_queue(netdev);
 
-	ipa_endpoint_disable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]);
-	ipa_endpoint_disable_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]);
+	ipa_endpoint_disable_one(priv->rx);
+	ipa_endpoint_disable_one(priv->tx);
 out_power_put:
 	pm_runtime_mark_last_busy(dev);
 	(void)pm_runtime_put_autosuspend(dev);
@@ -106,13 +110,16 @@ out_power_put:
 	return 0;
 }
 
-/** ipa_start_xmit() - Transmits an skb.
- * @skb: skb to be transmitted
- * @dev: network device
+/** ipa_start_xmit() - Transmit an skb
+ * @skb:	Socket buffer to be transmitted
+ * @netdev:	Network device
  *
- * Return codes:
- * NETDEV_TX_OK: Success
- * NETDEV_TX_BUSY: Error while transmitting the skb. Try again later
+ * Return: NETDEV_TX_OK if successful (or dropped), NETDEV_TX_BUSY otherwise
+
+ * Normally NETDEV_TX_OK indicates the buffer was successfully transmitted.
+ * If the buffer has an unexpected protocol or its size is out of range it
+ * is quietly dropped, returning NETDEV_TX_OK.  NETDEV_TX_BUSY indicates
+ * the buffer cannot be sent at this time and should retried later.
  */
 static netdev_tx_t
 ipa_start_xmit(struct sk_buff *skb, struct net_device *netdev)
@@ -132,29 +139,41 @@ ipa_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 	if (endpoint->config.qmap && skb->protocol != htons(ETH_P_MAP))
 		goto err_drop_skb;
 
-	/* The hardware must be powered for us to transmit */
-	dev = &ipa->pdev->dev;
+	/* The hardware must be powered for us to transmit, so if we're not
+	 * ready we want the network stack to stop queueing until power is
+	 * ACTIVE.  Once runtime resume has completed, we inform the network
+	 * stack it's OK to try transmitting again.
+	 *
+	 * We learn from pm_runtime_get() whether the hardware is powered.
+	 * If it was not, powering up is either started or already underway.
+	 * And in that case we want to disable queueing, expecting it to be
+	 * re-enabled once power is ACTIVE.  But runtime PM and network
+	 * transmit run concurrently, and if we're not careful the requests
+	 * to stop and start queueing could occur in the wrong order.
+	 *
+	 * For that reason we *always* stop queueing here, *before* the call
+	 * to pm_runtime_get().  If we determine here that power is ACTIVE,
+	 * we restart queueing before transmitting the SKB.  Otherwise
+	 * queueing will eventually be enabled after resume completes.
+	 */
+	netif_stop_queue(netdev);
+
+	dev = ipa->dev;
 	ret = pm_runtime_get(dev);
 	if (ret < 1) {
 		/* If a resume won't happen, just drop the packet */
 		if (ret < 0 && ret != -EINPROGRESS) {
-			ipa_power_modem_queue_active(ipa);
+			netif_wake_queue(netdev);
 			pm_runtime_put_noidle(dev);
 			goto err_drop_skb;
 		}
 
-		/* No power (yet).  Stop the network stack from transmitting
-		 * until we're resumed; ipa_modem_resume() arranges for the
-		 * TX queue to be started again.
-		 */
-		ipa_power_modem_queue_stop(ipa);
-
 		pm_runtime_put_noidle(dev);
 
 		return NETDEV_TX_BUSY;
 	}
 
-	ipa_power_modem_queue_active(ipa);
+	netif_wake_queue(netdev);
 
 	ret = ipa_endpoint_skb_tx(endpoint, skb);
 
@@ -233,14 +252,14 @@ static void ipa_modem_netdev_setup(struct net_device *netdev)
  */
 void ipa_modem_suspend(struct net_device *netdev)
 {
-	struct ipa_priv *priv = netdev_priv(netdev);
-	struct ipa *ipa = priv->ipa;
+	struct ipa_priv *priv;
 
 	if (!(netdev->flags & IFF_UP))
 		return;
 
-	ipa_endpoint_suspend_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]);
-	ipa_endpoint_suspend_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]);
+	priv = netdev_priv(netdev);
+	ipa_endpoint_suspend_one(priv->rx);
+	ipa_endpoint_suspend_one(priv->tx);
 }
 
 /**
@@ -258,7 +277,7 @@ static void ipa_modem_wake_queue_work(struct work_struct *work)
 {
 	struct ipa_priv *priv = container_of(work, struct ipa_priv, work);
 
-	ipa_power_modem_queue_wake(priv->ipa);
+	netif_wake_queue(priv->tx->netdev);
 }
 
 /** ipa_modem_resume() - resume callback for runtime_pm
@@ -268,14 +287,14 @@ static void ipa_modem_wake_queue_work(struct work_struct *work)
  */
 void ipa_modem_resume(struct net_device *netdev)
 {
-	struct ipa_priv *priv = netdev_priv(netdev);
-	struct ipa *ipa = priv->ipa;
+	struct ipa_priv *priv;
 
 	if (!(netdev->flags & IFF_UP))
 		return;
 
-	ipa_endpoint_resume_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]);
-	ipa_endpoint_resume_one(ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]);
+	priv = netdev_priv(netdev);
+	ipa_endpoint_resume_one(priv->tx);
+	ipa_endpoint_resume_one(priv->rx);
 
 	/* Arrange for the TX queue to be restarted */
 	(void)queue_pm_work(&priv->work);
@@ -303,19 +322,24 @@ int ipa_modem_start(struct ipa *ipa)
 		goto out_set_state;
 	}
 
-	SET_NETDEV_DEV(netdev, &ipa->pdev->dev);
+	SET_NETDEV_DEV(netdev, ipa->dev);
 	priv = netdev_priv(netdev);
 	priv->ipa = ipa;
+	priv->tx = ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX];
+	priv->rx = ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX];
 	INIT_WORK(&priv->work, ipa_modem_wake_queue_work);
-	ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]->netdev = netdev;
-	ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->netdev = netdev;
+
+	priv->tx->netdev = netdev;
+	priv->rx->netdev = netdev;
+
 	ipa->modem_netdev = netdev;
 
 	ret = register_netdev(netdev);
 	if (ret) {
 		ipa->modem_netdev = NULL;
-		ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->netdev = NULL;
-		ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]->netdev = NULL;
+		priv->rx->netdev = NULL;
+		priv->tx->netdev = NULL;
+
 		free_netdev(netdev);
 	}
 
@@ -355,9 +379,11 @@ int ipa_modem_stop(struct ipa *ipa)
 		if (netdev->flags & IFF_UP)
 			(void)ipa_stop(netdev);
 		unregister_netdev(netdev);
+
 		ipa->modem_netdev = NULL;
-		ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->netdev = NULL;
-		ipa->name_map[IPA_ENDPOINT_AP_MODEM_TX]->netdev = NULL;
+		priv->rx->netdev = NULL;
+		priv->tx->netdev = NULL;
+
 		free_netdev(netdev);
 	}
 
@@ -370,7 +396,7 @@ int ipa_modem_stop(struct ipa *ipa)
 /* Treat a "clean" modem stop the same as a crash */
 static void ipa_modem_crashed(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	int ret;
 
 	/* Prevent the modem from triggering a call to ipa_setup() */
@@ -417,7 +443,7 @@ static int ipa_modem_notify(struct notifier_block *nb, unsigned long action,
 {
 	struct ipa *ipa = container_of(nb, struct ipa, nb);
 	struct qcom_ssr_notify_data *notify_data = data;
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 
 	switch (action) {
 	case QCOM_SSR_BEFORE_POWERUP:
@@ -466,7 +492,7 @@ int ipa_modem_config(struct ipa *ipa)
 
 void ipa_modem_deconfig(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	int ret;
 
 	ret = qcom_unregister_ssr_notifier(ipa->notifier, &ipa->nb);
diff --git a/drivers/net/ipa/ipa_power.c b/drivers/net/ipa/ipa_power.c
index e223886123..41ca7ef5e2 100644
--- a/drivers/net/ipa/ipa_power.c
+++ b/drivers/net/ipa/ipa_power.c
@@ -35,28 +35,10 @@
 #define IPA_AUTOSUSPEND_DELAY	500	/* milliseconds */
 
 /**
- * enum ipa_power_flag - IPA power flags
- * @IPA_POWER_FLAG_RESUMED:	Whether resume from suspend has been signaled
- * @IPA_POWER_FLAG_SYSTEM:	Hardware is system (not runtime) suspended
- * @IPA_POWER_FLAG_STOPPED:	Modem TX is disabled by ipa_start_xmit()
- * @IPA_POWER_FLAG_STARTED:	Modem TX was enabled by ipa_runtime_resume()
- * @IPA_POWER_FLAG_COUNT:	Number of defined power flags
- */
-enum ipa_power_flag {
-	IPA_POWER_FLAG_RESUMED,
-	IPA_POWER_FLAG_SYSTEM,
-	IPA_POWER_FLAG_STOPPED,
-	IPA_POWER_FLAG_STARTED,
-	IPA_POWER_FLAG_COUNT,		/* Last; not a flag */
-};
-
-/**
  * struct ipa_power - IPA power management information
  * @dev:		IPA device pointer
  * @core:		IPA core clock
  * @qmp:		QMP handle for AOSS communication
- * @spinlock:		Protects modem TX queue enable/disable
- * @flags:		Boolean state flags
  * @interconnect_count:	Number of elements in interconnect[]
  * @interconnect:	Interconnect array
  */
@@ -64,8 +46,6 @@ struct ipa_power {
 	struct device *dev;
 	struct clk *core;
 	struct qmp *qmp;
-	spinlock_t spinlock;	/* used with STOPPED/STARTED power flags */
-	DECLARE_BITMAP(flags, IPA_POWER_FLAG_COUNT);
 	u32 interconnect_count;
 	struct icc_bulk_data interconnect[] __counted_by(interconnect_count);
 };
@@ -147,7 +127,6 @@ static int ipa_runtime_suspend(struct device *dev)
 
 	/* Endpoints aren't usable until setup is complete */
 	if (ipa->setup_complete) {
-		__clear_bit(IPA_POWER_FLAG_RESUMED, ipa->power->flags);
 		ipa_endpoint_suspend(ipa);
 		gsi_suspend(&ipa->gsi);
 	}
@@ -179,8 +158,6 @@ static int ipa_suspend(struct device *dev)
 {
 	struct ipa *ipa = dev_get_drvdata(dev);
 
-	__set_bit(IPA_POWER_FLAG_SYSTEM, ipa->power->flags);
-
 	/* Increment the disable depth to ensure that the IRQ won't
 	 * be re-enabled until the matching _enable call in
 	 * ipa_resume(). We do this to ensure that the interrupt
@@ -202,8 +179,6 @@ static int ipa_resume(struct device *dev)
 
 	ret = pm_runtime_force_resume(dev);
 
-	__clear_bit(IPA_POWER_FLAG_SYSTEM, ipa->power->flags);
-
 	/* Now that PM runtime is enabled again it's safe
 	 * to turn the IRQ back on and process any data
 	 * that was received during suspend.
@@ -219,84 +194,6 @@ u32 ipa_core_clock_rate(struct ipa *ipa)
 	return ipa->power ? (u32)clk_get_rate(ipa->power->core) : 0;
 }
 
-void ipa_power_suspend_handler(struct ipa *ipa, enum ipa_irq_id irq_id)
-{
-	/* To handle an IPA interrupt we will have resumed the hardware
-	 * just to handle the interrupt, so we're done.  If we are in a
-	 * system suspend, trigger a system resume.
-	 */
-	if (!__test_and_set_bit(IPA_POWER_FLAG_RESUMED, ipa->power->flags))
-		if (test_bit(IPA_POWER_FLAG_SYSTEM, ipa->power->flags))
-			pm_wakeup_dev_event(&ipa->pdev->dev, 0, true);
-
-	/* Acknowledge/clear the suspend interrupt on all endpoints */
-	ipa_interrupt_suspend_clear_all(ipa->interrupt);
-}
-
-/* The next few functions coordinate stopping and starting the modem
- * network device transmit queue.
- *
- * Transmit can be running concurrent with power resume, and there's a
- * chance the resume completes before the transmit path stops the queue,
- * leaving the queue in a stopped state.  The next two functions are used
- * to avoid this: ipa_power_modem_queue_stop() is used by ipa_start_xmit()
- * to conditionally stop the TX queue; and ipa_power_modem_queue_start()
- * is used by ipa_runtime_resume() to conditionally restart it.
- *
- * Two flags and a spinlock are used.  If the queue is stopped, the STOPPED
- * power flag is set.  And if the queue is started, the STARTED flag is set.
- * The queue is only started on resume if the STOPPED flag is set.  And the
- * queue is only started in ipa_start_xmit() if the STARTED flag is *not*
- * set.  As a result, the queue remains operational if the two activites
- * happen concurrently regardless of the order they complete.  The spinlock
- * ensures the flag and TX queue operations are done atomically.
- *
- * The first function stops the modem netdev transmit queue, but only if
- * the STARTED flag is *not* set.  That flag is cleared if it was set.
- * If the queue is stopped, the STOPPED flag is set.  This is called only
- * from the power ->runtime_resume operation.
- */
-void ipa_power_modem_queue_stop(struct ipa *ipa)
-{
-	struct ipa_power *power = ipa->power;
-	unsigned long flags;
-
-	spin_lock_irqsave(&power->spinlock, flags);
-
-	if (!__test_and_clear_bit(IPA_POWER_FLAG_STARTED, power->flags)) {
-		netif_stop_queue(ipa->modem_netdev);
-		__set_bit(IPA_POWER_FLAG_STOPPED, power->flags);
-	}
-
-	spin_unlock_irqrestore(&power->spinlock, flags);
-}
-
-/* This function starts the modem netdev transmit queue, but only if the
- * STOPPED flag is set.  That flag is cleared if it was set.  If the queue
- * was restarted, the STARTED flag is set; this allows ipa_start_xmit()
- * to skip stopping the queue in the event of a race.
- */
-void ipa_power_modem_queue_wake(struct ipa *ipa)
-{
-	struct ipa_power *power = ipa->power;
-	unsigned long flags;
-
-	spin_lock_irqsave(&power->spinlock, flags);
-
-	if (__test_and_clear_bit(IPA_POWER_FLAG_STOPPED, power->flags)) {
-		__set_bit(IPA_POWER_FLAG_STARTED, power->flags);
-		netif_wake_queue(ipa->modem_netdev);
-	}
-
-	spin_unlock_irqrestore(&power->spinlock, flags);
-}
-
-/* This function clears the STARTED flag once the TX queue is operating */
-void ipa_power_modem_queue_active(struct ipa *ipa)
-{
-	clear_bit(IPA_POWER_FLAG_STARTED, ipa->power->flags);
-}
-
 static int ipa_power_retention_init(struct ipa_power *power)
 {
 	struct qmp *qmp = qmp_get(power->dev);
@@ -341,7 +238,7 @@ int ipa_power_setup(struct ipa *ipa)
 
 	ipa_interrupt_enable(ipa, IPA_IRQ_TX_SUSPEND);
 
-	ret = device_init_wakeup(&ipa->pdev->dev, true);
+	ret = device_init_wakeup(ipa->dev, true);
 	if (ret)
 		ipa_interrupt_disable(ipa, IPA_IRQ_TX_SUSPEND);
 
@@ -350,7 +247,7 @@ int ipa_power_setup(struct ipa *ipa)
 
 void ipa_power_teardown(struct ipa *ipa)
 {
-	(void)device_init_wakeup(&ipa->pdev->dev, false);
+	(void)device_init_wakeup(ipa->dev, false);
 	ipa_interrupt_disable(ipa, IPA_IRQ_TX_SUSPEND);
 }
 
@@ -385,7 +282,6 @@ ipa_power_init(struct device *dev, const struct ipa_power_data *data)
 	}
 	power->dev = dev;
 	power->core = clk;
-	spin_lock_init(&power->spinlock);
 	power->interconnect_count = data->interconnect_count;
 
 	ret = ipa_interconnect_init(power, data->interconnect_data);
diff --git a/drivers/net/ipa/ipa_power.h b/drivers/net/ipa/ipa_power.h
index 3a4c59ea12..227cc04bea 100644
--- a/drivers/net/ipa/ipa_power.h
+++ b/drivers/net/ipa/ipa_power.h
@@ -24,24 +24,6 @@ extern const struct dev_pm_ops ipa_pm_ops;
 u32 ipa_core_clock_rate(struct ipa *ipa);
 
 /**
- * ipa_power_modem_queue_stop() - Possibly stop the modem netdev TX queue
- * @ipa:	IPA pointer
- */
-void ipa_power_modem_queue_stop(struct ipa *ipa);
-
-/**
- * ipa_power_modem_queue_wake() - Possibly wake the modem netdev TX queue
- * @ipa:	IPA pointer
- */
-void ipa_power_modem_queue_wake(struct ipa *ipa);
-
-/**
- * ipa_power_modem_queue_active() - Report modem netdev TX queue active
- * @ipa:	IPA pointer
- */
-void ipa_power_modem_queue_active(struct ipa *ipa);
-
-/**
  * ipa_power_retention() - Control register retention on power collapse
  * @ipa:	IPA pointer
  * @enable:	Whether retention should be enabled or disabled
@@ -49,17 +31,6 @@ void ipa_power_modem_queue_active(struct ipa *ipa);
 void ipa_power_retention(struct ipa *ipa, bool enable);
 
 /**
- * ipa_power_suspend_handler() - Handler for SUSPEND IPA interrupts
- * @ipa:	IPA pointer
- * @irq_id:	IPA interrupt ID (unused)
- *
- * If an RX endpoint is suspended, and the IPA has a packet destined for
- * that endpoint, the IPA generates a SUSPEND interrupt to inform the AP
- * that it should resume the endpoint.
- */
-void ipa_power_suspend_handler(struct ipa *ipa, enum ipa_irq_id irq_id);
-
-/**
  * ipa_power_setup() - Set up IPA power management
  * @ipa:	IPA pointer
  *
diff --git a/drivers/net/ipa/ipa_qmi.c b/drivers/net/ipa/ipa_qmi.c
index f70f0a1d1c..65c40e2078 100644
--- a/drivers/net/ipa/ipa_qmi.c
+++ b/drivers/net/ipa/ipa_qmi.c
@@ -96,7 +96,7 @@ static void ipa_server_init_complete(struct ipa_qmi *ipa_qmi)
 				   IPA_QMI_INIT_COMPLETE_IND_SZ,
 				   ipa_init_complete_ind_ei, &ind);
 	if (ret)
-		dev_err(&ipa->pdev->dev,
+		dev_err(ipa->dev,
 			"error %d sending init complete indication\n", ret);
 	else
 		ipa_qmi->indication_sent = true;
@@ -148,7 +148,7 @@ static void ipa_qmi_ready(struct ipa_qmi *ipa_qmi)
 	ipa = container_of(ipa_qmi, struct ipa, qmi);
 	ret = ipa_modem_start(ipa);
 	if (ret)
-		dev_err(&ipa->pdev->dev, "error %d starting modem\n", ret);
+		dev_err(ipa->dev, "error %d starting modem\n", ret);
 }
 
 /* All QMI clients from the modem node are gone (modem shut down or crashed). */
@@ -199,7 +199,7 @@ static void ipa_server_indication_register(struct qmi_handle *qmi,
 		ipa_qmi->indication_requested = true;
 		ipa_qmi_ready(ipa_qmi);		/* We might be ready now */
 	} else {
-		dev_err(&ipa->pdev->dev,
+		dev_err(ipa->dev,
 			"error %d sending register indication response\n", ret);
 	}
 }
@@ -228,7 +228,7 @@ static void ipa_server_driver_init_complete(struct qmi_handle *qmi,
 		ipa_qmi->uc_ready = true;
 		ipa_qmi_ready(ipa_qmi);		/* We might be ready now */
 	} else {
-		dev_err(&ipa->pdev->dev,
+		dev_err(ipa->dev,
 			"error %d sending init complete response\n", ret);
 	}
 }
@@ -417,7 +417,7 @@ static void ipa_client_init_driver_work(struct work_struct *work)
 	qmi = &ipa_qmi->client_handle;
 
 	ipa = container_of(ipa_qmi, struct ipa, qmi);
-	dev = &ipa->pdev->dev;
+	dev = ipa->dev;
 
 	ret = qmi_txn_init(qmi, &txn, NULL, NULL);
 	if (ret < 0) {
diff --git a/drivers/net/ipa/ipa_reg.c b/drivers/net/ipa/ipa_reg.c
index 6a3203ae6f..98625956e0 100644
--- a/drivers/net/ipa/ipa_reg.c
+++ b/drivers/net/ipa/ipa_reg.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2019-2023 Linaro Ltd.
  */
 
+#include <linux/platform_device.h>
 #include <linux/io.h>
 
 #include "ipa.h"
@@ -132,9 +133,9 @@ static const struct regs *ipa_regs(enum ipa_version version)
 	}
 }
 
-int ipa_reg_init(struct ipa *ipa)
+int ipa_reg_init(struct ipa *ipa, struct platform_device *pdev)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = &pdev->dev;
 	const struct regs *regs;
 	struct resource *res;
 
@@ -146,8 +147,7 @@ int ipa_reg_init(struct ipa *ipa)
 		return -EINVAL;
 
 	/* Setup IPA register memory  */
-	res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM,
-					   "ipa-reg");
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ipa-reg");
 	if (!res) {
 		dev_err(dev, "DT error getting \"ipa-reg\" memory property\n");
 		return -ENODEV;
diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h
index 2998f115f1..62c62495b7 100644
--- a/drivers/net/ipa/ipa_reg.h
+++ b/drivers/net/ipa/ipa_reg.h
@@ -12,6 +12,8 @@
 #include "ipa_version.h"
 #include "reg.h"
 
+struct platform_device;
+
 struct ipa;
 
 /**
@@ -643,7 +645,7 @@ extern const struct regs ipa_regs_v5_5;
 
 const struct reg *ipa_reg(struct ipa *ipa, enum ipa_reg_id reg_id);
 
-int ipa_reg_init(struct ipa *ipa);
+int ipa_reg_init(struct ipa *ipa, struct platform_device *pdev);
 void ipa_reg_exit(struct ipa *ipa);
 
 #endif /* _IPA_REG_H_ */
diff --git a/drivers/net/ipa/ipa_smp2p.c b/drivers/net/ipa/ipa_smp2p.c
index 5620dc271f..2f917582c4 100644
--- a/drivers/net/ipa/ipa_smp2p.c
+++ b/drivers/net/ipa/ipa_smp2p.c
@@ -5,7 +5,7 @@
  */
 
 #include <linux/types.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/notifier.h>
 #include <linux/panic_notifier.h>
@@ -84,15 +84,13 @@ struct ipa_smp2p {
  */
 static void ipa_smp2p_notify(struct ipa_smp2p *smp2p)
 {
-	struct device *dev;
 	u32 value;
 	u32 mask;
 
 	if (smp2p->notified)
 		return;
 
-	dev = &smp2p->ipa->pdev->dev;
-	smp2p->power_on = pm_runtime_get_if_active(dev, true) > 0;
+	smp2p->power_on = pm_runtime_get_if_active(smp2p->ipa->dev) > 0;
 
 	/* Signal whether the IPA power is enabled */
 	mask = BIT(smp2p->enabled_bit);
@@ -152,15 +150,16 @@ static void ipa_smp2p_panic_notifier_unregister(struct ipa_smp2p *smp2p)
 static irqreturn_t ipa_smp2p_modem_setup_ready_isr(int irq, void *dev_id)
 {
 	struct ipa_smp2p *smp2p = dev_id;
+	struct ipa *ipa = smp2p->ipa;
 	struct device *dev;
 	int ret;
 
 	/* Ignore any (spurious) interrupts received after the first */
-	if (smp2p->ipa->setup_complete)
+	if (ipa->setup_complete)
 		return IRQ_HANDLED;
 
 	/* Power needs to be active for setup */
-	dev = &smp2p->ipa->pdev->dev;
+	dev = ipa->dev;
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0) {
 		dev_err(dev, "error %d getting power for setup\n", ret);
@@ -168,7 +167,7 @@ static irqreturn_t ipa_smp2p_modem_setup_ready_isr(int irq, void *dev_id)
 	}
 
 	/* An error here won't cause driver shutdown, so warn if one occurs */
-	ret = ipa_setup(smp2p->ipa);
+	ret = ipa_setup(ipa);
 	WARN(ret != 0, "error %d from ipa_setup()\n", ret);
 
 out_power_put:
@@ -179,14 +178,15 @@ out_power_put:
 }
 
 /* Initialize SMP2P interrupts */
-static int ipa_smp2p_irq_init(struct ipa_smp2p *smp2p, const char *name,
-			      irq_handler_t handler)
+static int ipa_smp2p_irq_init(struct ipa_smp2p *smp2p,
+			      struct platform_device *pdev,
+			      const char *name, irq_handler_t handler)
 {
-	struct device *dev = &smp2p->ipa->pdev->dev;
+	struct device *dev = &pdev->dev;
 	unsigned int irq;
 	int ret;
 
-	ret = platform_get_irq_byname(smp2p->ipa->pdev, name);
+	ret = platform_get_irq_byname(pdev, name);
 	if (ret <= 0)
 		return ret ? : -EINVAL;
 	irq = ret;
@@ -208,7 +208,7 @@ static void ipa_smp2p_irq_exit(struct ipa_smp2p *smp2p, u32 irq)
 /* Drop the power reference if it was taken in ipa_smp2p_notify() */
 static void ipa_smp2p_power_release(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 
 	if (!ipa->smp2p->power_on)
 		return;
@@ -219,10 +219,11 @@ static void ipa_smp2p_power_release(struct ipa *ipa)
 }
 
 /* Initialize the IPA SMP2P subsystem */
-int ipa_smp2p_init(struct ipa *ipa, bool modem_init)
+int
+ipa_smp2p_init(struct ipa *ipa, struct platform_device *pdev, bool modem_init)
 {
 	struct qcom_smem_state *enabled_state;
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = &pdev->dev;
 	struct qcom_smem_state *valid_state;
 	struct ipa_smp2p *smp2p;
 	u32 enabled_bit;
@@ -261,7 +262,7 @@ int ipa_smp2p_init(struct ipa *ipa, bool modem_init)
 	/* We have enough information saved to handle notifications */
 	ipa->smp2p = smp2p;
 
-	ret = ipa_smp2p_irq_init(smp2p, "ipa-clock-query",
+	ret = ipa_smp2p_irq_init(smp2p, pdev, "ipa-clock-query",
 				 ipa_smp2p_modem_clk_query_isr);
 	if (ret < 0)
 		goto err_null_smp2p;
@@ -273,7 +274,7 @@ int ipa_smp2p_init(struct ipa *ipa, bool modem_init)
 
 	if (modem_init) {
 		/* Result will be non-zero (negative for error) */
-		ret = ipa_smp2p_irq_init(smp2p, "ipa-setup-ready",
+		ret = ipa_smp2p_irq_init(smp2p, pdev, "ipa-setup-ready",
 					 ipa_smp2p_modem_setup_ready_isr);
 		if (ret < 0)
 			goto err_notifier_unregister;
diff --git a/drivers/net/ipa/ipa_smp2p.h b/drivers/net/ipa/ipa_smp2p.h
index 9b969b03d1..2a3d8eefb1 100644
--- a/drivers/net/ipa/ipa_smp2p.h
+++ b/drivers/net/ipa/ipa_smp2p.h
@@ -8,17 +8,20 @@
 
 #include <linux/types.h>
 
+struct platform_device;
+
 struct ipa;
 
 /**
  * ipa_smp2p_init() - Initialize the IPA SMP2P subsystem
  * @ipa:	IPA pointer
+ * @pdev:	Platform device pointer
  * @modem_init:	Whether the modem is responsible for GSI initialization
  *
  * Return:	0 if successful, or a negative error code
- *
  */
-int ipa_smp2p_init(struct ipa *ipa, bool modem_init);
+int ipa_smp2p_init(struct ipa *ipa, struct platform_device *pdev,
+		   bool modem_init);
 
 /**
  * ipa_smp2p_exit() - Inverse of ipa_smp2p_init()
diff --git a/drivers/net/ipa/ipa_table.c b/drivers/net/ipa/ipa_table.c
index 7b637bb8b4..a24ac11b88 100644
--- a/drivers/net/ipa/ipa_table.c
+++ b/drivers/net/ipa/ipa_table.c
@@ -163,7 +163,7 @@ ipa_table_mem(struct ipa *ipa, bool filter, bool hashed, bool ipv6)
 
 bool ipa_filtered_valid(struct ipa *ipa, u64 filtered)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	u32 count;
 
 	if (!filtered) {
@@ -236,8 +236,7 @@ ipa_filter_reset_table(struct ipa *ipa, bool hashed, bool ipv6, bool modem)
 
 	trans = ipa_cmd_trans_alloc(ipa, hweight64(ep_mask));
 	if (!trans) {
-		dev_err(&ipa->pdev->dev,
-			"no transaction for %s filter reset\n",
+		dev_err(ipa->dev, "no transaction for %s filter reset\n",
 			modem ? "modem" : "AP");
 		return -EBUSY;
 	}
@@ -298,8 +297,7 @@ static int ipa_route_reset(struct ipa *ipa, bool modem)
 
 	trans = ipa_cmd_trans_alloc(ipa, hash_support ? 4 : 2);
 	if (!trans) {
-		dev_err(&ipa->pdev->dev,
-			"no transaction for %s route reset\n",
+		dev_err(ipa->dev, "no transaction for %s route reset\n",
 			modem ? "modem" : "AP");
 		return -EBUSY;
 	}
@@ -327,7 +325,7 @@ static int ipa_route_reset(struct ipa *ipa, bool modem)
 
 void ipa_table_reset(struct ipa *ipa, bool modem)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	const char *ee_name;
 	int ret;
 
@@ -356,7 +354,7 @@ int ipa_table_hash_flush(struct ipa *ipa)
 
 	trans = ipa_cmd_trans_alloc(ipa, 1);
 	if (!trans) {
-		dev_err(&ipa->pdev->dev, "no transaction for hash flush\n");
+		dev_err(ipa->dev, "no transaction for hash flush\n");
 		return -EBUSY;
 	}
 
@@ -469,7 +467,7 @@ int ipa_table_setup(struct ipa *ipa)
 	 */
 	trans = ipa_cmd_trans_alloc(ipa, 8);
 	if (!trans) {
-		dev_err(&ipa->pdev->dev, "no transaction for table setup\n");
+		dev_err(ipa->dev, "no transaction for table setup\n");
 		return -EBUSY;
 	}
 
@@ -713,7 +711,7 @@ bool ipa_table_mem_valid(struct ipa *ipa, bool filter)
  */
 int ipa_table_init(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	dma_addr_t addr;
 	__le64 le_addr;
 	__le64 *virt;
@@ -763,7 +761,7 @@ int ipa_table_init(struct ipa *ipa)
 void ipa_table_exit(struct ipa *ipa)
 {
 	u32 count = max_t(u32, 1 + ipa->filter_count, ipa->route_count);
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 	size_t size;
 
 	size = IPA_ZERO_RULE_SIZE + (1 + count) * sizeof(__le64);
diff --git a/drivers/net/ipa/ipa_uc.c b/drivers/net/ipa/ipa_uc.c
index 7eaa0b4ebe..bfd5dc6dab 100644
--- a/drivers/net/ipa/ipa_uc.c
+++ b/drivers/net/ipa/ipa_uc.c
@@ -127,7 +127,7 @@ static struct ipa_uc_mem_area *ipa_uc_shared(struct ipa *ipa)
 static void ipa_uc_event_handler(struct ipa *ipa)
 {
 	struct ipa_uc_mem_area *shared = ipa_uc_shared(ipa);
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 
 	if (shared->event == IPA_UC_EVENT_ERROR)
 		dev_err(dev, "microcontroller error event\n");
@@ -141,7 +141,7 @@ static void ipa_uc_event_handler(struct ipa *ipa)
 static void ipa_uc_response_hdlr(struct ipa *ipa)
 {
 	struct ipa_uc_mem_area *shared = ipa_uc_shared(ipa);
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 
 	/* An INIT_COMPLETED response message is sent to the AP by the
 	 * microcontroller when it is operational.  Other than this, the AP
@@ -191,7 +191,7 @@ void ipa_uc_config(struct ipa *ipa)
 /* Inverse of ipa_uc_config() */
 void ipa_uc_deconfig(struct ipa *ipa)
 {
-	struct device *dev = &ipa->pdev->dev;
+	struct device *dev = ipa->dev;
 
 	ipa_interrupt_disable(ipa, IPA_IRQ_UC_1);
 	ipa_interrupt_disable(ipa, IPA_IRQ_UC_0);
@@ -208,8 +208,8 @@ void ipa_uc_deconfig(struct ipa *ipa)
 /* Take a proxy power reference for the microcontroller */
 void ipa_uc_power(struct ipa *ipa)
 {
+	struct device *dev = ipa->dev;
 	static bool already;
-	struct device *dev;
 	int ret;
 
 	if (already)
@@ -217,7 +217,6 @@ void ipa_uc_power(struct ipa *ipa)
 	already = true;		/* Only do this on first boot */
 
 	/* This power reference dropped in ipa_uc_response_hdlr() above */
-	dev = &ipa->pdev->dev;
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0) {
 		pm_runtime_put_noidle(dev);