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authorGraeme Gregory <graeme.gregory@linaro.org>2017-08-04 22:49:43 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-08-15 14:17:08 +0200
commitdee82bc1e653126408f4108cd994d1e96949d064 (patch)
tree7fd86164e308bd6bf13b7b05c9fb97a49e06b50d /drivers/acpi/spcr.c
parentef954844c7ace62f773f4f23e28d2d915adc419f (diff)
downloadlinux-dee82bc1e653126408f4108cd994d1e96949d064.tar.bz2
ACPI: SPCR: extend XGENE 8250 workaround to m400
xgene v1/v2 chips are also used on moonshot cartridges that have different table headers to the ones on Mustang. Extend the quirk so it also recognises the Moonshot M400 variant too. Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org> Tested-by: Mark Salter <msalter@redhat.com> Reviewed-by: Mark Salter <msalter@redhat.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.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index 98aa8c808a33..2c156941b371 100644
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -53,17 +53,24 @@ static bool qdf2400_erratum_44_present(struct acpi_table_header *h)
*/
static bool xgene_8250_erratum_present(struct acpi_table_spcr *tb)
{
+ bool xgene_8250 = false;
+
if (tb->interface_type != ACPI_DBG2_16550_COMPATIBLE)
return false;
- if (memcmp(tb->header.oem_id, "APMC0D", ACPI_OEM_ID_SIZE))
+ if (memcmp(tb->header.oem_id, "APMC0D", ACPI_OEM_ID_SIZE) &&
+ memcmp(tb->header.oem_id, "HPE ", ACPI_OEM_ID_SIZE))
return false;
if (!memcmp(tb->header.oem_table_id, "XGENESPC",
ACPI_OEM_TABLE_ID_SIZE) && tb->header.oem_revision == 0)
- return true;
+ xgene_8250 = true;
- return false;
+ if (!memcmp(tb->header.oem_table_id, "ProLiant",
+ ACPI_OEM_TABLE_ID_SIZE) && tb->header.oem_revision == 1)
+ xgene_8250 = true;
+
+ return xgene_8250;
}
/**