From: Y.C. Chen <yc_chen@aspeedtech.com>
Date: Tue, 30 Oct 2018 03:34:46 +0000 (+0800)
Subject: drm/ast: fixed cursor may disappear sometimes
X-Git-Tag: v4.19.6~61
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=80142af39bd9e403d02d0595736664f6944f1a57;p=platform%2Fkernel%2Flinux-rpi.git

drm/ast: fixed cursor may disappear sometimes

commit 7989b9ee8bafe5cc625381dd0c3c4586de27ca26 upstream.

Signed-off-by: Y.C. Chen <yc_chen@aspeedtech.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index f06aae7..7c6ac3c 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1255,7 +1255,7 @@ static int ast_cursor_move(struct drm_crtc *crtc,
 	ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, ((y >> 8) & 0x07));
 
 	/* dummy write to fire HWC */
-	ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xCB, 0xFF, 0x00);
+	ast_show_cursor(crtc);
 
 	return 0;
 }