This is in preparation to splitting ACPI and platform device drivers.
Having init_acpi() helps in smooth code movement.
Signed-off-by: Suma Hegde <suma.hegde@xxxxxxx>
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@xxxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
Changes since v4:
None
Changes since v3:
None
Changes since v2:
None
Changes since v1:
Add "Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>"
drivers/platform/x86/amd/hsmp/hsmp.c | 91 ++++++++++++++++++----------
1 file changed, 59 insertions(+), 32 deletions(-)
diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c
index 8fcf38eed7f0..10ab9b2437f1 100644
--- a/drivers/platform/x86/amd/hsmp/hsmp.c
+++ b/drivers/platform/x86/amd/hsmp/hsmp.c
@@ -778,6 +778,11 @@ static int init_platform_device(struct device *dev)
dev_err(dev, "Is HSMP disabled in BIOS ?\n");
return ret;
}
+ ret = hsmp_cache_proto_ver(i);
+ if (ret) {
+ dev_err(dev, "Failed to read HSMP protocol version\n");
+ return ret;
+ }
}
return 0;
@@ -789,10 +794,53 @@ static const struct acpi_device_id amd_hsmp_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, amd_hsmp_acpi_ids);
+static bool check_acpi_support(struct device *dev)
+{
+ struct acpi_device *adev = ACPI_COMPANION(dev);
+
+ if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids))
+ return true;
+
+ return false;
+}
+
+static int init_acpi(struct device *dev)
+{
+ u16 sock_ind;
+ int ret;
+
+ ret = hsmp_get_uid(dev, &sock_ind);
+ if (ret)
+ return ret;
+ if (sock_ind >= plat_dev.num_sockets)
+ return -EINVAL;
+
+ ret = hsmp_parse_acpi_table(dev, sock_ind);
+ if (ret) {
+ dev_err(dev, "Failed to parse ACPI table\n");
+ return ret;
+ }
+
+ /* Test the hsmp interface */
+ ret = hsmp_test(sock_ind, 0xDEADBEEF);
+ if (ret) {
+ dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n",
+ boot_cpu_data.x86, boot_cpu_data.x86_model);
+ dev_err(dev, "Is HSMP disabled in BIOS ?\n");
+ return ret;
+ }
+
+ ret = hsmp_cache_proto_ver(sock_ind);
+ if (ret) {
+ dev_err(dev, "Failed to read HSMP protocol version\n");
+ return ret;
+ }
+
+ return ret;
+}
+
static int hsmp_pltdrv_probe(struct platform_device *pdev)
{
- struct acpi_device *adev;
- u16 sock_ind = 0;
int ret;
/*
@@ -809,46 +857,25 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev)
if (!plat_dev.sock)
return -ENOMEM;
}
- adev = ACPI_COMPANION(&pdev->dev);
- if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids)) {
- ret = hsmp_get_uid(&pdev->dev, &sock_ind);
- if (ret)
- return ret;
- if (sock_ind >= plat_dev.num_sockets)
- return -EINVAL;
- ret = hsmp_parse_acpi_table(&pdev->dev, sock_ind);
- if (ret) {
- dev_err(&pdev->dev, "Failed to parse ACPI table\n");
- return ret;
- }
- /* Test the hsmp interface */
- ret = hsmp_test(sock_ind, 0xDEADBEEF);
+ if (check_acpi_support(&pdev->dev)) {
+ ret = init_acpi(&pdev->dev);
if (ret) {
- dev_err(&pdev->dev, "HSMP test message failed on Fam:%x model:%x\n",
- boot_cpu_data.x86, boot_cpu_data.x86_model);
- dev_err(&pdev->dev, "Is HSMP disabled in BIOS ?\n");
+ dev_err(&pdev->dev, "Failed to init HSMP mailbox\n");
return ret;
}
+ ret = hsmp_create_acpi_sysfs_if(&pdev->dev);
+ if (ret)
+ dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
} else {
ret = init_platform_device(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "Failed to init HSMP mailbox\n");
return ret;
}
- }
-
- ret = hsmp_cache_proto_ver(sock_ind);
- if (ret) {
- dev_err(&pdev->dev, "Failed to read HSMP protocol version\n");
- return ret;
- }
-
- if (plat_dev.is_acpi_device)
- ret = hsmp_create_acpi_sysfs_if(&pdev->dev);
- else
ret = hsmp_create_non_acpi_sysfs_if(&pdev->dev);
- if (ret)
- dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
+ if (ret)
+ dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
+ }
if (!plat_dev.is_probed) {
plat_dev.hsmp_device.name = HSMP_CDEV_NAME;
--
2.25.1
