disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/ipu-v3/ipu-pre.c
..
..
@@ -1,14 +1,6 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * Copyright (c) 2017 Lucas Stach, Pengutronix
3
- *
4
- * This program is free software; you can redistribute it and/or modify it
5
- * under the terms and conditions of the GNU General Public License,
6
- * version 2, as published by the Free Software Foundation.
7
- *
8
- * This program is distributed in the hope it will be useful, but WITHOUT
9
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11
- * more details.
12
4
  */
13
5
 
14
6
 #include <drm/drm_fourcc.h>
..
..
@@ -265,6 +257,12 @@
265
257
 	writel(IPU_PRE_CTRL_SDW_UPDATE, pre->regs + IPU_PRE_CTRL_SET);
266
258
 }
267
259
 
260
+bool ipu_pre_update_pending(struct ipu_pre *pre)
261
+{
262
+	return !!(readl_relaxed(pre->regs + IPU_PRE_CTRL) &
263
+		  IPU_PRE_CTRL_SDW_UPDATE);
264
+}
265
+
268
266
 u32 ipu_pre_get_baddr(struct ipu_pre *pre)
269
267
 {
270
268
 	return (u32)pre->buffer_paddr;