diff --git a/drivers/net/wireless/ath/ath12k/ahb.c b/drivers/net/wireless/ath/ath12k/ahb.c
index 14ee696960c7..0fc55c9169e1 100644
--- a/drivers/net/wireless/ath/ath12k/ahb.c
+++ b/drivers/net/wireless/ath/ath12k/ahb.c
@@ -25,6 +25,22 @@ static const char ath12k_userpd_irq[][9] = {"spawn",
 				     "ready",
 				     "stop-ack"};
 
+/*
+ * Multi-UserPD Architecture:
+ *
+ * One Q6 RootPD (managed by separate rproc driver) supports multiple
+ * ath12k UserPDs. Each UserPD represents a WiFi radio instance.
+ *
+ * Lifecycle:
+ *  - RootPD boots when first UserPD probes
+ *  - All UserPDs share RootPD's SSR notifier
+ *
+ * Locking:
+ *  - ath12k_rproc_info_lock: Protects g_rproc_info allocation/free
+ */
+static struct ath12k_ahb_rproc_info *g_rproc_info;
+static DEFINE_MUTEX(ath12k_rproc_info_lock);
+
 static const char *irq_name[ATH12K_IRQ_NUM_MAX] = {
 	"misc-pulse1",
 	"misc-latch",
@@ -786,44 +802,85 @@ static int ath12k_ahb_config_rproc_irq(struct ath12k_base *ab)
 static int ath12k_ahb_root_pd_state_notifier(struct notifier_block *nb,
 					     const unsigned long event, void *data)
 {
-	struct ath12k_ahb *ab_ahb = container_of(nb, struct ath12k_ahb, root_pd_nb);
-	struct ath12k_base *ab = ab_ahb->ab;
+	struct ath12k_ahb_rproc_info *rproc_info =
+		container_of(nb, struct ath12k_ahb_rproc_info, root_pd_nb);
 
 	if (event == ATH12K_RPROC_AFTER_POWERUP) {
-		ath12k_dbg(ab, ATH12K_DBG_AHB, "Root PD is UP\n");
-		complete(&ab_ahb->rootpd_ready);
+		ath12k_generic_dbg(ATH12K_DBG_AHB, "Root PD is UP\n");
+		complete(&rproc_info->rootpd_ready);
 	}
 
 	return 0;
 }
 
-static int ath12k_ahb_register_rproc_notifier(struct ath12k_base *ab)
+static int ath12k_ahb_register_rproc_notifier(void)
 {
-	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
+	int ret;
 
-	ab_ahb->root_pd_nb.notifier_call = ath12k_ahb_root_pd_state_notifier;
-	init_completion(&ab_ahb->rootpd_ready);
+	lockdep_assert_held(&ath12k_rproc_info_lock);
 
-	ab_ahb->root_pd_notifier = qcom_register_ssr_notifier(ab_ahb->tgt_rproc->name,
-							      &ab_ahb->root_pd_nb);
-	if (IS_ERR(ab_ahb->root_pd_notifier))
-		return PTR_ERR(ab_ahb->root_pd_notifier);
+	if (g_rproc_info->root_pd_notifier)
+		return 0;
+
+	g_rproc_info->root_pd_nb.notifier_call = ath12k_ahb_root_pd_state_notifier;
+
+	g_rproc_info->root_pd_notifier =
+			qcom_register_ssr_notifier(g_rproc_info->tgt_rproc->name,
+						   &g_rproc_info->root_pd_nb);
+	if (IS_ERR(g_rproc_info->root_pd_notifier)) {
+		ret = PTR_ERR(g_rproc_info->root_pd_notifier);
+		g_rproc_info->root_pd_notifier = NULL;
+		return ret;
+	}
 
 	return 0;
 }
 
-static void ath12k_ahb_unregister_rproc_notifier(struct ath12k_base *ab)
+static void ath12k_ahb_unregister_rproc_notifier(void)
 {
-	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
+	lockdep_assert_held(&ath12k_rproc_info_lock);
 
-	if (!ab_ahb->root_pd_notifier) {
-		ath12k_err(ab, "Rproc notifier not registered\n");
+	if (!g_rproc_info->root_pd_notifier)
 		return;
-	}
 
-	qcom_unregister_ssr_notifier(ab_ahb->root_pd_notifier,
-				     &ab_ahb->root_pd_nb);
-	ab_ahb->root_pd_notifier = NULL;
+	qcom_unregister_ssr_notifier(g_rproc_info->root_pd_notifier,
+				     &g_rproc_info->root_pd_nb);
+	g_rproc_info->root_pd_notifier = NULL;
+}
+
+static void ath12k_ahb_cleanup_userpd(struct ath12k_base *ab)
+{
+	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
+	struct ath12k_ahb_rproc_info *rproc_info = ab_ahb->rproc_info;
+
+	lockdep_assert_held(&ath12k_rproc_info_lock);
+
+	if (!rproc_info)
+		return;
+
+	rproc_info->userpd[ab_ahb->userpd_id - 1] = NULL;
+	rproc_info->num_userpd--;
+	ab_ahb->rproc_info = NULL;
+}
+
+static struct ath12k_ahb_rproc_info *ath12k_ahb_rproc_info_alloc(struct ath12k_base *ab)
+{
+	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
+	struct ath12k_ahb_rproc_info *rproc_info;
+
+	lockdep_assert_held(&ath12k_rproc_info_lock);
+
+	rproc_info = kzalloc_obj(*rproc_info, GFP_KERNEL);
+	if (!rproc_info)
+		return NULL;
+
+	rproc_info->rootpd_booted_by_driver = false;
+	rproc_info->userpd[ab_ahb->userpd_id - 1] = ab_ahb;
+	rproc_info->num_userpd = 1;
+	init_completion(&rproc_info->rootpd_ready);
+	ab_ahb->rproc_info = rproc_info;
+
+	return rproc_info;
 }
 
 static int ath12k_ahb_get_rproc(struct ath12k_base *ab)
@@ -832,37 +889,69 @@ static int ath12k_ahb_get_rproc(struct ath12k_base *ab)
 	struct device *dev = ab->dev;
 	struct device_node *np;
 	struct rproc *prproc;
+	int ret;
+
+	lockdep_assert_held(&ath12k_rproc_info_lock);
+
+	if (ab_ahb->userpd_id > ATH12K_MAX_DEVICES)
+		return -ENOSPC;
+
+	if (g_rproc_info) {
+		if (g_rproc_info->num_userpd >= ATH12K_MAX_DEVICES) {
+			ath12k_err(ab, "Max UserPD limit reached\n");
+			return -ENOSPC;
+		}
+
+		g_rproc_info->userpd[ab_ahb->userpd_id - 1] = ab_ahb;
+		g_rproc_info->num_userpd++;
+		ab_ahb->rproc_info = g_rproc_info;
+		return 0;
+	}
+
+	g_rproc_info = ath12k_ahb_rproc_info_alloc(ab);
+	if (!g_rproc_info)
+		return -ENOMEM;
 
 	np = of_parse_phandle(dev->of_node, "qcom,rproc", 0);
 	if (!np) {
 		ath12k_err(ab, "failed to get q6_rproc handle\n");
-		return -ENOENT;
+		ret = -ENOENT;
+		goto err_free_rproc_info;
 	}
 
 	prproc = rproc_get_by_phandle(np->phandle);
 	of_node_put(np);
-	if (!prproc)
-		return dev_err_probe(&ab->pdev->dev, -EPROBE_DEFER,
-				     "failed to get rproc\n");
-
-	ab_ahb->tgt_rproc = prproc;
+	if (!prproc) {
+		ret = dev_err_probe(&ab->pdev->dev, -EPROBE_DEFER,
+				    "failed to get rproc\n");
+		goto err_free_rproc_info;
+	}
 
+	g_rproc_info->tgt_rproc = prproc;
 	return 0;
+
+err_free_rproc_info:
+	ab_ahb->rproc_info = NULL;
+	kfree(g_rproc_info);
+	g_rproc_info = NULL;
+	return ret;
 }
 
 static int ath12k_ahb_boot_root_pd(struct ath12k_base *ab)
 {
-	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
 	unsigned long time_left;
 	int ret;
 
-	ret = rproc_boot(ab_ahb->tgt_rproc);
+	lockdep_assert_held(&ath12k_rproc_info_lock);
+	reinit_completion(&g_rproc_info->rootpd_ready);
+
+	ret = rproc_boot(g_rproc_info->tgt_rproc);
 	if (ret < 0) {
 		ath12k_err(ab, "RootPD boot failed\n");
 		return ret;
 	}
 
-	time_left = wait_for_completion_timeout(&ab_ahb->rootpd_ready,
+	time_left = wait_for_completion_timeout(&g_rproc_info->rootpd_ready,
 						ATH12K_ROOTPD_READY_TIMEOUT);
 	if (!time_left) {
 		ath12k_err(ab, "RootPD ready wait timed out\n");
@@ -874,44 +963,74 @@ static int ath12k_ahb_boot_root_pd(struct ath12k_base *ab)
 
 static int ath12k_ahb_configure_rproc(struct ath12k_base *ab)
 {
-	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
 	int ret;
 
-	ret = ath12k_ahb_get_rproc(ab);
-	if (ret < 0)
-		return ret;
+	mutex_lock(&ath12k_rproc_info_lock);
 
-	ret = ath12k_ahb_register_rproc_notifier(ab);
+	ret = ath12k_ahb_get_rproc(ab);
+	if (ret < 0) {
+		mutex_unlock(&ath12k_rproc_info_lock);
+		return ret;
+	}
+
+	ret = ath12k_ahb_register_rproc_notifier();
 	if (ret < 0) {
 		ret = dev_err_probe(&ab->pdev->dev, ret,
 				    "failed to register rproc notifier\n");
-		goto err_put_rproc;
+		goto err_cleanup_userpd;
 	}
 
-	if (ab_ahb->tgt_rproc->state != RPROC_RUNNING) {
+	if (g_rproc_info->tgt_rproc->state != RPROC_RUNNING) {
 		ret = ath12k_ahb_boot_root_pd(ab);
 		if (ret < 0) {
 			ath12k_err(ab, "failed to boot the remote processor Q6\n");
 			goto err_unreg_notifier;
 		}
+		g_rproc_info->rootpd_booted_by_driver = true;
 	}
 
-	return ath12k_ahb_config_rproc_irq(ab);
+	mutex_unlock(&ath12k_rproc_info_lock);
+	return 0;
 
 err_unreg_notifier:
-	ath12k_ahb_unregister_rproc_notifier(ab);
+	ath12k_ahb_unregister_rproc_notifier();
 
-err_put_rproc:
-	rproc_put(ab_ahb->tgt_rproc);
+err_cleanup_userpd:
+	ath12k_ahb_cleanup_userpd(ab);
+
+	if (g_rproc_info && !g_rproc_info->num_userpd) {
+		rproc_put(g_rproc_info->tgt_rproc);
+		kfree(g_rproc_info);
+		g_rproc_info = NULL;
+	}
+
+	mutex_unlock(&ath12k_rproc_info_lock);
 	return ret;
 }
 
 static void ath12k_ahb_deconfigure_rproc(struct ath12k_base *ab)
 {
 	struct ath12k_ahb *ab_ahb = ath12k_ab_to_ahb(ab);
+	struct ath12k_ahb_rproc_info *rproc_info = ab_ahb->rproc_info;
 
-	ath12k_ahb_unregister_rproc_notifier(ab);
-	rproc_put(ab_ahb->tgt_rproc);
+	lockdep_assert_held(&ath12k_rproc_info_lock);
+
+	if (!rproc_info || !g_rproc_info)
+		return;
+
+	ath12k_ahb_cleanup_userpd(ab);
+
+	if (!g_rproc_info->num_userpd) {
+		ath12k_ahb_unregister_rproc_notifier();
+
+		if (g_rproc_info->rootpd_booted_by_driver &&
+		    g_rproc_info->tgt_rproc->state == RPROC_RUNNING)
+			rproc_shutdown(g_rproc_info->tgt_rproc);
+
+		rproc_put(g_rproc_info->tgt_rproc);
+		kfree(g_rproc_info);
+		g_rproc_info = NULL;
+	}
 }
 
 static int ath12k_ahb_resource_init(struct ath12k_base *ab)
@@ -1094,6 +1213,10 @@ static int ath12k_ahb_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_ce_free;
 
+	ret = ath12k_ahb_config_rproc_irq(ab);
+	if (ret)
+		goto err_rproc_deconfigure;
+
 	ret = ath12k_ahb_config_irq(ab);
 	if (ret) {
 		ath12k_err(ab, "failed to configure irq: %d\n", ret);
@@ -1121,7 +1244,9 @@ static int ath12k_ahb_probe(struct platform_device *pdev)
 	ab_ahb->device_family_ops->arch_deinit(ab);
 
 err_rproc_deconfigure:
+	mutex_lock(&ath12k_rproc_info_lock);
 	ath12k_ahb_deconfigure_rproc(ab);
+	mutex_unlock(&ath12k_rproc_info_lock);
 
 err_ce_free:
 	ath12k_ce_free_pipes(ab);
@@ -1163,7 +1288,9 @@ static void ath12k_ahb_free_resources(struct ath12k_base *ab)
 	ath12k_hal_srng_deinit(ab);
 	ath12k_ce_free_pipes(ab);
 	ath12k_ahb_resource_deinit(ab);
+	mutex_lock(&ath12k_rproc_info_lock);
 	ath12k_ahb_deconfigure_rproc(ab);
+	mutex_unlock(&ath12k_rproc_info_lock);
 	ab_ahb->device_family_ops->arch_deinit(ab);
 	ath12k_core_free(ab);
 	platform_set_drvdata(pdev, NULL);
diff --git a/drivers/net/wireless/ath/ath12k/ahb.h b/drivers/net/wireless/ath/ath12k/ahb.h
index 037347ccd21b..cdb58b07338f 100644
--- a/drivers/net/wireless/ath/ath12k/ahb.h
+++ b/drivers/net/wireless/ath/ath12k/ahb.h
@@ -69,13 +69,19 @@ struct ath12k_ahb_device_family_ops {
 	void (*arch_deinit)(struct ath12k_base *ab);
 };
 
-struct ath12k_ahb {
-	struct ath12k_base *ab;
+struct ath12k_ahb_rproc_info {
 	struct rproc *tgt_rproc;
-	struct clk *xo_clk;
-	struct completion rootpd_ready;
 	struct notifier_block root_pd_nb;
 	void *root_pd_notifier;
+	struct completion rootpd_ready;
+	u8 num_userpd;
+	bool rootpd_booted_by_driver;
+	struct ath12k_ahb *userpd[ATH12K_MAX_DEVICES];
+};
+
+struct ath12k_ahb {
+	struct ath12k_base *ab;
+	struct clk *xo_clk;
 	struct qcom_smem_state *spawn_state;
 	struct qcom_smem_state *stop_state;
 	struct completion userpd_spawned;
@@ -88,6 +94,7 @@ struct ath12k_ahb {
 	const struct ath12k_ahb_ops *ahb_ops;
 	const struct ath12k_ahb_device_family_ops *device_family_ops;
 	bool scm_auth_enabled;
+	struct ath12k_ahb_rproc_info *rproc_info;
 };
 
 struct ath12k_ahb_driver {