linux-kernel - [PATCH v1] platform/x86: intel_pmc_ipc: add option to build without ACPI

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Message-Id: <20250312022955.1418234-1-yong.liang.choong@linux.intel.com>
Date: Wed, 12 Mar 2025 10:29:55 +0800
From: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
To: Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	David E Box <david.e.box@...ux.intel.com>,
	Andy Shevchenko <andy.shevchenko@...il.com>
Cc: platform-driver-x86@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1] platform/x86: intel_pmc_ipc: add option to build without ACPI

This patch introduces a configuration option that allows users to
build the intel_pmc_ipc driver without ACPI support. This is useful
for systems where ACPI is not available or desired.

Based on the discussion from the patch: https://patchwork.kernel.org/
project/netdevbpf/patch/20250227121522.1802832-6-
yong.liang.choong@...ux.intel.com/#26280764, it was necessary to
provide this option to accommodate specific use cases.

Signed-off-by: David E. Box <david.e.box@...ux.intel.com>
Signed-off-by: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
---
 include/linux/platform_data/x86/intel_pmc_ipc.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/platform_data/x86/intel_pmc_ipc.h b/include/linux/platform_data/x86/intel_pmc_ipc.h
index 6e603a8c075f..a852f1a02532 100644
--- a/include/linux/platform_data/x86/intel_pmc_ipc.h
+++ b/include/linux/platform_data/x86/intel_pmc_ipc.h
@@ -34,6 +34,7 @@ struct pmc_ipc_rbuf {
  *
  * Return: 0 on success. Non-zero on mailbox error
  */
+#if CONFIG_ACPI
 static inline int intel_pmc_ipc(struct pmc_ipc_cmd *ipc_cmd, struct pmc_ipc_rbuf *rbuf)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -90,5 +91,9 @@ static inline int intel_pmc_ipc(struct pmc_ipc_cmd *ipc_cmd, struct pmc_ipc_rbuf
 
 	return 0;
 }
+#else
+static inline int intel_pmc_ipc(struct pmc_ipc_cmd *ipc_cmd, struct pmc_ipc_rbuf *rbuf)
+{ return -ENODEV; }
+#endif /* CONFIG_ACPI */
 
 #endif /* INTEL_PMC_IPC_H */
-- 
2.34.1