ARM: pxa/cm-x300: fix V3020 RTC functionality

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@compulab.co.il>
Cc: stable@kernel.org
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index b2248e7..8a03487 100644 (file)
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -161,10 +161,10 @@ 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,