From:   Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To:     hdegoede@redhat.com, markgross@kernel.org
Cc:     platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org,
        Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
        "David E . Box" <david.e.box@linux.intel.com>
Subject: [PATCH 3/7] platform/x86/intel/vsec: Support private data
Date:   Wed,  1 Feb 2023 17:07:34 -0800
Message-Id: <20230202010738.2186174-4-srinivas.pandruvada@linux.intel.com>
In-Reply-To: <20230202010738.2186174-1-srinivas.pandruvada@linux.intel.com>
References: <20230202010738.2186174-1-srinivas.pandruvada@linux.intel.com>
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Add fields to struct intel_vsec_device, so that core module (which
creates aux bus devices) can pass private data to the client drivers.

For example there is one vsec device instance per CPU package. On a
multi package system, this private data can be used to pass the package
ID. This package id can be used by client drivers to change power
settings for a specific CPU package by targeting MMIO space of the
correct PCI device.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: David E. Box <david.e.box@linux.intel.com>
---
 drivers/platform/x86/intel/vsec.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/intel/vsec.h b/drivers/platform/x86/intel/vsec.h
index d02c340fd458..ae8fe92c5595 100644
--- a/drivers/platform/x86/intel/vsec.h
+++ b/drivers/platform/x86/intel/vsec.h
@@ -38,6 +38,8 @@ struct intel_vsec_device {
 	struct ida *ida;
 	struct intel_vsec_platform_info *info;
 	int num_resources;
+	void *priv_data;
+	size_t priv_data_size;
 };
 
 int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,
-- 
2.31.1