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 3e37fb2..cc14081 100644 (file)
--- 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