diff options
author | Suma Hegde <suma.hegde@amd.com> | 2024-10-21 14:14:19 +0300 |
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committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-10-22 13:36:49 +0300 |
commit | 1e1c4c0ab3088cc94a9bafcd716e4054b3344be1 (patch) | |
tree | 67a369b205461186830dd9859715fef16091ade2 /drivers/platform/x86/amd | |
parent | 9df193087b9ed58a244faa516334539661fe7f11 (diff) | |
download | linux-1e1c4c0ab3088cc94a9bafcd716e4054b3344be1.tar.xz |
platform/x86/amd/hsmp: Create wrapper function init_acpi()
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@amd.com>
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20241021111428.2676884-2-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/amd')
-rw-r--r-- | drivers/platform/x86/amd/hsmp/hsmp.c | 91 |
1 files changed, 59 insertions, 32 deletions
diff --git a/drivers/platform/x86/amd/hsmp/hsmp.c b/drivers/platform/x86/amd/hsmp/hsmp.c index fe8948729bba..f7b9964522de 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; |