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authorLv Zheng <lv.zheng@intel.com>2017-08-03 14:26:19 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-08-03 23:34:15 +0200
commit4eebedd8f1a6609739c2e9a9b020791b23cbcceb (patch)
tree0f971e4f5bda4df87f5b2153d11b88b958ec8472 /drivers/acpi/acpica/hwregs.c
parentab539eaa50c6a97f1d6287c5ce3ee75155cb10b8 (diff)
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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/acpica/hwregs.c')
-rw-r--r--drivers/acpi/acpica/hwregs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index de74a4c25085..acb417b58bbb 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -107,7 +107,7 @@ acpi_hw_get_access_bit_width(u64 address,
ACPI_IS_ALIGNED(reg->bit_width, 8)) {
access_bit_width = reg->bit_width;
} else if (reg->access_width) {
- access_bit_width = (1 << (reg->access_width + 2));
+ access_bit_width = ACPI_ACCESS_BIT_WIDTH(reg->access_width);
} else {
access_bit_width =
ACPI_ROUND_UP_POWER_OF_TWO_8(reg->bit_offset +