Starting in 2.6.33, the kernel has an updated GPIO driver for the CS5535. This conforms
more to the GPIO abstraction described in Documentation/gpio.txt under the section
"Sysfs Interface for Userspace".
Index: package/kernel/modules/other.mk
===================================================================
--- package/kernel/modules/other.mk (revision 25095)
+++ package/kernel/modules/other.mk (working copy)
@@ -167,15 +167,9 @@
SUBMENU:=$(OTHER_MENU)
TITLE:=AMD CS5535/CS5536 GPIO driver
DEPENDS:=@TARGET_x86
- KCONFIG:=CONFIG_CS5535_GPIO \
- CONFIG_GPIO_CS5535
-ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,2.6.32)),1)
+ KCONFIG:=CONFIG_CS5535_GPIO
FILES:=$(LINUX_DIR)/drivers/char/cs5535_gpio.ko
AUTOLOAD:=$(call AutoLoad,50,cs5535_gpio)
-else
- FILES:=$(LINUX_DIR)/drivers/gpio/cs5535-gpio.ko
- AUTOLOAD:=$(call AutoLoad,50,cs5535-gpio)
-endif
endef
define KernelPackage/gpio-cs5535/description
@@ -185,6 +179,24 @@
$(eval $(call KernelPackage,gpio-cs5535))
+define KernelPackage/gpio-cs5535-new
+ SUBMENU:=$(OTHER_MENU)
+ TITLE:=AMD CS5535/CS5536 GPIO driver with improved sysfs support
+ DEPENDS:=@TARGET_x86
+ifeq ($(strip $(call CompareKernelPatchVer,$(KERNEL_PATCHVER),ge,2.6.33)),1)
+ KCONFIG:=CONFIG_GPIO_CS5535 CONFIG_PCI CONFIG_GPIOLIB
+ FILES:=$(LINUX_DIR)/drivers/gpio/cs5535-gpio.ko
+ AUTOLOAD:=$(call AutoLoad,50,cs5535-gpio)
+endif
+endef
+
+define KernelPackage/gpio-cs5535-new/description
+ This package contains the new AMD CS5535/CS5536 GPIO driver
+endef
+
+$(eval $(call KernelPackage,gpio-cs5535-new))
+
+
define KernelPackage/gpio-dev
SUBMENU:=$(OTHER_MENU)
TITLE:=Generic GPIO char device support
Index: target/linux/x86/config-default
===================================================================
--- target/linux/x86/config-default (revision 25095)
+++ target/linux/x86/config-default (working copy)
@@ -72,6 +72,7 @@
# CONFIG_CPU_SUP_TRANSMETA_32 is not set
# CONFIG_CPU_SUP_UMC_32 is not set
# CONFIG_CS5535_GPIO is not set
+# CONFIG_GPIO_CS5535 is not set
# CONFIG_CS89x0 is not set
# CONFIG_DCDBAS is not set
# CONFIG_DEBUG_BOOT_PARAMS is not set
Index: target/linux/x86/geos/config-default
===================================================================
--- target/linux/x86/geos/config-default (revision 25095)
+++ target/linux/x86/geos/config-default (working copy)
@@ -26,3 +26,4 @@
CONFIG_X86_TSC=y
CONFIG_X86_USE_3DNOW=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
+CONFIG_GPIOLIB=y
Index: target/linux/x86/geos/target.mk
===================================================================
--- target/linux/x86/geos/target.mk (revision 25095)
+++ target/linux/x86/geos/target.mk (working copy)
@@ -2,7 +2,7 @@
FEATURES:=squashfs jffs2 ext4 pci usb gpio
DEFAULT_PACKAGES += kmod-ata-via-sata \
kmod-crypto-hw-geode kmod-crypto-ocf \
- kmod-gpio-cs5535 kmod-gpio-nsc \
+ kmod-gpio-cs5535-new kmod-gpio-nsc \
kmod-wdt-geode kmod-hwmon-core kmod-hwmon-lm90 \
kmod-8139cp kmod-solos-pci \
kmod-i2c-core kmod-i2c-gpio \
Index: target/linux/x86/Makefile
===================================================================
--- target/linux/x86/Makefile (revision 25095)
+++ target/linux/x86/Makefile (working copy)
@@ -12,7 +12,7 @@
FEATURES:=squashfs jffs2 ext4 vdi vmdk pcmcia targz
SUBTARGETS=generic olpc xen_domu ep80579 net5501 kvm_guest geos
-LINUX_VERSION:=2.6.32.27
+LINUX_VERSION:=2.6.37
include $(INCLUDE_DIR)/target.mk
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