1 From c7ce3c5e9f7e28900b8ea9c3e1afe41dcdc0863d Mon Sep 17 00:00:00 2001
2 From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
3 Date: Thu, 23 Apr 2009 10:46:53 +0300
4 Subject: [PATCH 53/69] DSS2: disable LCD & DIGIT before resetting DSS
6 This seems to fix the synclost problem that we get, if the bootloader
7 starts the DSS and the kernel resets it.
9 drivers/video/omap2/dss/dss.c | 8 +++++---
10 1 files changed, 5 insertions(+), 3 deletions(-)
12 diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
13 index adc1f34..aab9758 100644
14 --- a/drivers/video/omap2/dss/dss.c
15 +++ b/drivers/video/omap2/dss/dss.c
16 @@ -285,6 +285,11 @@ int dss_init(bool skip_init)
20 + /* disable LCD and DIGIT output. This seems to fix the synclost
21 + * problem that we get, if the bootloader starts the DSS and
22 + * the kernel resets it */
23 + omap_writel(omap_readl(0x48050440) & ~0x3, 0x48050440);
25 /* We need to wait here a bit, otherwise we sometimes start to
26 * get synclost errors, and after that only power cycle will
27 * restore DSS functionality. I have no idea why this happens.
28 @@ -294,10 +299,7 @@ int dss_init(bool skip_init)
35 - printk("DSS SKIP RESET\n");
38 REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0);