[U-Boot] [RFC PATCH 3/3] arm: bootm: Add dm_pre_os_remove() call to announce_and_cleanup()

[Stefan Roese]

This patch adds a call to dm_pre_os_remove() to announce_and_cleanup()
so that drivers that have the flag DM_FLAG_PRE_OS_REMOVE set may do
some last-stage cleanup before the OS is started.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Simon Glass <sjg at chromium.org>
---
 arch/arm/lib/bootm.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 8125cf023f..84f3415c1e 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -91,6 +91,14 @@ static void announce_and_cleanup(int fake)
 
 	board_quiesce_devices();
 
+	/*
+	 * Call remove function of all devices with the pre-OS remove flag
+	 * set (DM_FLAG_PRE_OS_REMOVE). This may be useful for last-stage
+	 * operations, like cancelling of DMA operation or releasing device
+	 * internal buffers.
+	 */
+	dm_pre_os_remove();
+
 	cleanup_before_linux();
 }
 
-- 
2.12.0