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Subject[PATCH v4 4/4] dmi: Add IPMI DMI devices as platform devices
Date
From: Corey Minyard <cminyard@mvista.com>

Have DMI create a platform device for every IPMI device it
finds.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Andy Lutomirski <luto@kernel.org>
Tested-by: Andy Lutomirski <luto@kernel.org>
---
drivers/firmware/dmi_scan.c | 55 +++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 53 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 16e5174..6a9598b 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -7,6 +7,7 @@
#include <linux/efi.h>
#include <linux/bootmem.h>
#include <linux/random.h>
+#include <linux/platform_device.h>
#include <asm/dmi.h>
#include <asm/unaligned.h>

@@ -783,6 +784,52 @@ static ssize_t raw_table_read(struct file *file, struct kobject *kobj,
return count;
}

+static void __init dmi_add_platform_ipmi(struct dmi_device *dev, int *nr)
+{
+ struct platform_device *pdev;
+ struct dmi_dev_ipmi *ipmi_dev = to_dmi_dev_ipmi(dev);
+ int rv;
+
+ if (!ipmi_dev->good_data) {
+ pr_err("dmi: Invalid IPMI data, not creating platform device");
+ return;
+ }
+
+ if (ipmi_dev->type == IPMI_DMI_TYPE_SSIF)
+ pdev = platform_device_alloc("dmi-ipmi-ssif", *nr);
+ else
+ pdev = platform_device_alloc("dmi-ipmi-si", *nr);
+ if (!pdev) {
+ pr_err("dmi: Error allocation IPMI platform device");
+ return;
+ }
+ if (ipmi_dev->type == IPMI_DMI_TYPE_SSIF)
+ pdev->driver_override = "ipmi_ssif";
+ else
+ pdev->driver_override = "ipmi_si";
+
+ pdev->dev.fwnode = &dev->fwnode;
+ rv = platform_device_add(pdev);
+ if (rv) {
+ dev_err(&pdev->dev, "dmi: Unable to add device: %d\n", rv);
+ platform_device_del(pdev);
+ return;
+ }
+
+ (*nr)++;
+}
+
+static void __init dmi_add_platform_devices(void)
+{
+ struct dmi_device *dev;
+ int nr_ipmi = 0;
+
+ list_for_each_entry(dev, &dmi_devices, list) {
+ if (dev->type == DMI_DEV_TYPE_IPMI)
+ dmi_add_platform_ipmi(dev, &nr_ipmi);
+ }
+}
+
static BIN_ATTR(smbios_entry_point, S_IRUSR, raw_table_read, NULL, 0);
static BIN_ATTR(DMI, S_IRUSR, raw_table_read, NULL, 0);

@@ -823,9 +870,13 @@ static int __init dmi_init(void)
bin_attr_DMI.size = dmi_len;
bin_attr_DMI.private = dmi_table;
ret = sysfs_create_bin_file(tables_kobj, &bin_attr_DMI);
- if (!ret)
- return 0;
+ if (ret)
+ goto out_remove_bin_file;
+
+ dmi_add_platform_devices();
+ return 0;

+ out_remove_bin_file:
sysfs_remove_bin_file(tables_kobj,
&bin_attr_smbios_entry_point);
err_unmap:
--
2.7.4
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