add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/acpi/processor_perflib.c
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..
@@ -56,6 +56,8 @@
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 {
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 	acpi_status status = 0;
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 	unsigned long long ppc = 0;
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+	s32 qos_value;
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+	int index;
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 	int ret;
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 	if (!pr)
..
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@@ -75,17 +77,30 @@
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 		return -ENODEV;
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 	}
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-	pr_debug("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
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-		       (int)ppc, ppc ? "" : "not");
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+	index = ppc;
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-	pr->performance_platform_limit = (int)ppc;
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-
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-	if (ppc >= pr->performance->state_count ||
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-	    unlikely(!freq_qos_request_active(&pr->perflib_req)))
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+	if (pr->performance_platform_limit == index ||
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+	    ppc >= pr->performance->state_count)
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 		return 0;
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-	ret = freq_qos_update_request(&pr->perflib_req,
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-			pr->performance->states[ppc].core_frequency * 1000);
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+	pr_debug("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
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+		 index, index ? "is" : "is not");
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+
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+	pr->performance_platform_limit = index;
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+
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+	if (unlikely(!freq_qos_request_active(&pr->perflib_req)))
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+		return 0;
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+
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+	/*
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+	 * If _PPC returns 0, it means that all of the available states can be
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+	 * used ("no limit").
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+	 */
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+	if (index == 0)
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+		qos_value = FREQ_QOS_MAX_DEFAULT_VALUE;
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+	else
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+		qos_value = pr->performance->states[index].core_frequency * 1000;
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+
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+	ret = freq_qos_update_request(&pr->perflib_req, qos_value);
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 	if (ret < 0) {
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 		pr_warn("Failed to update perflib freq constraint: CPU%d (%d)\n",
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 			pr->id, ret);
..
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@@ -168,9 +183,16 @@
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 		if (!pr)
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 			continue;
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+		/*
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+		 * Reset performance_platform_limit in case there is a stale
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+		 * value in it, so as to make it match the "no limit" QoS value
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+		 * below.
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+		 */
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+		pr->performance_platform_limit = 0;
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+
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 		ret = freq_qos_add_request(&policy->constraints,
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-					   &pr->perflib_req,
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-					   FREQ_QOS_MAX, INT_MAX);
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+					   &pr->perflib_req, FREQ_QOS_MAX,
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+					   FREQ_QOS_MAX_DEFAULT_VALUE);
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 		if (ret < 0)
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 			pr_err("Failed to add freq constraint for CPU%d (%d)\n",
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 			       cpu, ret);