efifb: Add override for 11" Macbook Air 3,1

The 11" Macbook Air appears to claim that its stride is 1366, when it's
actually 2048. Override it.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 2359b6403a16..4eb38db36e4b 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -53,6 +53,7 @@ enum {
         M_MB_7_1,       /* MacBook, 7th rev. */
         M_MB_SR,        /* MacBook, 2nd gen, (Santa Rosa) */
         M_MBA,          /* MacBook Air */
+        M_MBA_3,        /* Macbook Air, 3rd rev */
         M_MBP,          /* MacBook Pro */
         M_MBP_2,        /* MacBook Pro 2nd gen */
         M_MBP_2_2,      /* MacBook Pro 2,2nd gen */
@@ -97,6 +98,8 @@ static struct efifb_dmi_info {
         [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
         [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
         [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+        /* 11" Macbook Air 3,1 passes the wrong stride */
+        [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
         [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
         [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
         [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
@@ -147,6 +150,7 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
         EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
+        EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
         EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),