From: Magnus Damm <magnus.damm@gmail.com>
To: linux-sh@vger.kernel.org
Subject: [PATCH 01/04] sh: skip disabled LCDC channels
Date: Sat, 15 Aug 2009 02:53:16 +0000 [thread overview]
Message-ID: <20090815025316.8125.53448.sendpatchset@rx1.opensource.se> (raw)
From: Magnus Damm <damm@igel.co.jp>
This patch updates the SuperH Mobile LCDC driver to skip
over disabled channels. Without this patch suspend-to-ram
operation will crash if deferred io is enabled.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
---
drivers/video/sh_mobile_lcdcfb.c | 5 +++++
1 file changed, 5 insertions(+)
--- 0001/drivers/video/sh_mobile_lcdcfb.c
+++ work/drivers/video/sh_mobile_lcdcfb.c 2009-08-14 13:29:48.000000000 +0900
@@ -477,6 +477,9 @@ static int sh_mobile_lcdc_start(struct s
/* tell the board code to enable the panel */
for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
ch = &priv->ch[k];
+ if (!ch->enabled)
+ continue;
+
board_cfg = &ch->cfg.board_cfg;
if (board_cfg->display_on)
board_cfg->display_on(board_cfg->board_data);
@@ -494,6 +497,8 @@ static void sh_mobile_lcdc_stop(struct s
/* clean up deferred io and ask board code to disable panel */
for (k = 0; k < ARRAY_SIZE(priv->ch); k++) {
ch = &priv->ch[k];
+ if (!ch->enabled)
+ continue;
/* deferred io mode:
* flush frame, and wait for frame end interrupt
reply other threads:[~2009-08-15 2:53 UTC|newest]
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