cs5535-gpio: add AMD CS5535/CS5536 GPIO driver support

This creates a CS5535/CS5536 GPIO driver which uses a gpio_chip backend
(allowing GPIO users to use the generic GPIO API if desired) while also
allowing architecture-specific users directly (via the cs5535_gpio_*
functions).

Tested on an OLPC machine.  Some Leemotes also use CS5536 (with a mips
cpu), which is why this is in drivers/gpio rather than arch/x86.
Currently, it conflicts with older geode GPIO support; once MFGPT support
is reworked to also be more generic, the older geode code will be removed.

Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jordan Crouse <jordan@cosmicpenguin.net>
Cc: David Brownell <david-b@pacbell.net>
Reviewed-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 27 deletions

diff --git a/arch/x86/include/asm/geode.h b/arch/x86/include/asm/geode.h
index ad3c2ed75481..5716214d37d9 100644
--- a/arch/x86/include/asm/geode.h
+++ b/arch/x86/include/asm/geode.h
@@ -12,6 +12,7 @@
 
 #include <asm/processor.h>
 #include <linux/io.h>
+#include <linux/cs5535.h>
 
 /* Generic southbridge functions */
 
@@ -115,33 +116,6 @@ extern int geode_get_dev_base(unsigned int dev);
 #define VSA_VR_MEM_SIZE         0x0200
 #define AMD_VSA_SIG             0x4132  /* signature is ascii 'VSA2' */
 #define GSW_VSA_SIG             0x534d  /* General Software signature */
-/* GPIO */
-
-#define GPIO_OUTPUT_VAL         0x00
-#define GPIO_OUTPUT_ENABLE      0x04
-#define GPIO_OUTPUT_OPEN_DRAIN  0x08
-#define GPIO_OUTPUT_INVERT      0x0C
-#define GPIO_OUTPUT_AUX1        0x10
-#define GPIO_OUTPUT_AUX2        0x14
-#define GPIO_PULL_UP            0x18
-#define GPIO_PULL_DOWN          0x1C
-#define GPIO_INPUT_ENABLE       0x20
-#define GPIO_INPUT_INVERT       0x24
-#define GPIO_INPUT_FILTER       0x28
-#define GPIO_INPUT_EVENT_COUNT  0x2C
-#define GPIO_READ_BACK          0x30
-#define GPIO_INPUT_AUX1         0x34
-#define GPIO_EVENTS_ENABLE      0x38
-#define GPIO_LOCK_ENABLE        0x3C
-#define GPIO_POSITIVE_EDGE_EN   0x40
-#define GPIO_NEGATIVE_EDGE_EN   0x44
-#define GPIO_POSITIVE_EDGE_STS  0x48
-#define GPIO_NEGATIVE_EDGE_STS  0x4C
-
-#define GPIO_MAP_X              0xE0
-#define GPIO_MAP_Y              0xE4
-#define GPIO_MAP_Z              0xE8
-#define GPIO_MAP_W              0xEC
 
 static inline u32 geode_gpio(unsigned int nr)
 {