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| author | Lv Zheng <lv.zheng@intel.com> | 2017-08-03 14:26:19 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-08-03 23:34:15 +0200 |
| commit | 4eebedd8f1a6609739c2e9a9b020791b23cbcceb (patch) | |
| tree | 0f971e4f5bda4df87f5b2153d11b88b958ec8472 /drivers/acpi/spcr.c | |
| parent | ab539eaa50c6a97f1d6287c5ce3ee75155cb10b8 (diff) | |
| download | lwn-4eebedd8f1a6609739c2e9a9b020791b23cbcceb.tar.gz lwn-4eebedd8f1a6609739c2e9a9b020791b23cbcceb.zip | |
ACPICA: Divergences: reduce access size definitions
ACPICA commit cf27b3c98883d2a15d932016792fcb8272ace96d
The following commit introduces definition of access width to ACPICA.
Commit: 2bece49394872d36bbc5767fd643deac05920c55
Subject: ACPI: SPCR: Use access width to determine mmio usage
Actually the access bit width can be calculated via access width. It
would be better to define a macro calculating bit width rather than
defining fixed values. This patch thus cleans up the definitions to
reduce divergences.
Link: https://github.com/acpica/acpica/commit/cf27b3c9
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/spcr.c')
| -rw-r--r-- | drivers/acpi/spcr.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c index 4ac3e06b41d8..1230f969256b 100644 --- a/drivers/acpi/spcr.c +++ b/drivers/acpi/spcr.c @@ -95,16 +95,17 @@ int __init parse_spcr(bool earlycon) } if (table->serial_port.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { - switch (table->serial_port.access_width) { + switch (ACPI_ACCESS_BIT_WIDTH(( + table->serial_port.access_width))) { default: pr_err("Unexpected SPCR Access Width. Defaulting to byte size\n"); - case ACPI_ACCESS_SIZE_BYTE: + case 8: iotype = "mmio"; break; - case ACPI_ACCESS_SIZE_WORD: + case 16: iotype = "mmio16"; break; - case ACPI_ACCESS_SIZE_DWORD: + case 32: iotype = "mmio32"; break; } |