linux-kernel - [34-longterm 123/179] ARM: pxa/cm-x300: fix V3020 RTC functionality

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1337048075-6132-124-git-send-email-paul.gortmaker@windriver.com>
Date:	Mon, 14 May 2012 22:13:39 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<stable@...nel.org>, <linux-kernel@...r.kernel.org>
Subject: [34-longterm 123/179] ARM: pxa/cm-x300: fix V3020 RTC functionality

From: Igor Grinberg <grinberg@...pulab.co.il>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit 6c7b3ea52e345ab614edb91d3f0e9f3bb3713871 upstream.

While in sleep mode the CS# and other V3020 RTC GPIOs must be driven
high, otherwise V3020 RTC fails to keep the right time in sleep mode.

Signed-off-by: Igor Grinberg <grinberg@...pulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@...il.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 arch/arm/mach-pxa/cm-x300.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index f054062..945b52a 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -154,10 +154,10 @@ static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
 	GPIO99_GPIO,			/* Ethernet IRQ */
 
 	/* RTC GPIOs */
-	GPIO95_GPIO,			/* RTC CS */
-	GPIO96_GPIO,			/* RTC WR */
-	GPIO97_GPIO,			/* RTC RD */
-	GPIO98_GPIO,			/* RTC IO */
+	GPIO95_GPIO | MFP_LPM_DRIVE_HIGH,	/* RTC CS */
+	GPIO96_GPIO | MFP_LPM_DRIVE_HIGH,	/* RTC WR */
+	GPIO97_GPIO | MFP_LPM_DRIVE_HIGH,	/* RTC RD */
+	GPIO98_GPIO,				/* RTC IO */
 
 	/* Standard I2C */
 	GPIO21_I2C_SCL,
-- 
1.7.9.6

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/