From: Magnus Damm <damm@igel.co.jp>
Date: Fri, 19 Dec 2008 06:34:50 +0000 (+0900)
Subject: sh: enable deferred io LCDC on Migo-R
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b5868e8cdeb35cd9ddc3a541f81f318b0f6772b3;p=linux-beck.git

sh: enable deferred io LCDC on Migo-R

Enable LCDC deferred io on Migo-R using 1s delay.

As with other deferred io frame buffers user space code should
use fsync() on the frame buffer device to trigger an update.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 3e37fb25ef92..cc1408119c24 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -262,6 +262,8 @@ static struct sh_mobile_lcdc_info sh_mobile_lcdc_info = {
 		.sys_bus_cfg = {
 			.ldmt2r = 0x06000a09,
 			.ldmt3r = 0x180e3418,
+			/* set 1s delay to encourage fsync() */
+			.deferred_io_msec = 1000,
 		},
 	}
 #endif