[PATCH] Fix for missing possibility to power on GSM in om-gta02-2.6.34

Gennady Kupava gb at bsdmn.com
Mon Aug 2 13:08:51 CEST 2010

In om-gta02-2.6.34, i had problem with impossibility to power on gsm.
Problem were that no sysfs node exited.

Kernel logs (with debugging) for working .32:

Kernel logs (with debugging) for .34 without fix:

Kernel logs (with debugging) for .34 with fix:

to power on gsm use:
echo 1
> /sys/bus/platform/devices/reg-fixed-voltage.1/gta02-pm-gsm.0/power_on

Problem were introduced by diff:
in .34:
pcf50633-gpio     264 drivers/mfd/pcf50633-core.c
in .32:
pcf50633-gpio     624 drivers/mfd/pcf50633-core.c
pcf50633_client_dev_register(pcf, "pcf50633-gpio",

Patch renames board-specific platform bus device pattern to match new
device name.

diff --git a/arch/arm/mach-s3c2440/mach-gta02.c
index b23b011..bad9b08 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -1153,7 +1153,7 @@ static struct platform_device*
gta02_hdq_children[] = {

 static struct gta02_device_children gta02_device_children[] = {
-               .dev_name = "pcf50633-gpio",
+               .dev_name = "pcf50633-gpio.0",
                .num_children = 1,
                .children = gta02_pcf50633_gpio_children,

and copy in attachment.

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