[PATCH] drm/ast: DisplayPort edid supports 256 bytes

[Jammy Huang <jammy_huang@aspeedtech.com>]

DisplayPort supports edid at most 256 bytes. Thus, allow it to fetch
edid block 0 and 1.

Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
---
ASPEED DisplayPort's EDID size can be 256 bytes at most. Thus, EDID
blocks fetched can be 0 and 1.
---
 drivers/gpu/drm/ast/ast_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ast/ast_dp.c b/drivers/gpu/drm/ast/ast_dp.c
index 9d07dad358c..c938e1d6b1d 100644
--- a/drivers/gpu/drm/ast/ast_dp.c
+++ b/drivers/gpu/drm/ast/ast_dp.c
@@ -88,7 +88,7 @@ static int ast_astdp_read_edid_block(void *data, u8 *buf, unsigned int block, si
 	int ret = 0;
 	unsigned int i;
 
-	if (block > 0)
+	if (block > 1)
 		return -EIO; /* extension headers not supported */
 
 	/*

---
base-commit: 5ee8dbf54602dc340d6235b1d6aa17c0f283f48c
change-id: 20260313-upstream_ast_dp_edid-5fe6adf7ad36

Best regards,
-- 
Jammy Huang <jammy_huang@aspeedtech.com>