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-rw-r--r--Documentation/arm/Samsung-S3C24XX/GPIO.txt23
1 files changed, 19 insertions, 4 deletions
diff --git a/Documentation/arm/Samsung-S3C24XX/GPIO.txt b/Documentation/arm/Samsung-S3C24XX/GPIO.txt
index 8caea8c237ee..ea7ccfc4b274 100644
--- a/Documentation/arm/Samsung-S3C24XX/GPIO.txt
+++ b/Documentation/arm/Samsung-S3C24XX/GPIO.txt
@@ -13,16 +13,31 @@ Introduction
13 data-sheet/users manual to find out the complete list. 13 data-sheet/users manual to find out the complete list.
14 14
15 15
16GPIOLIB
17-------
18
19 With the event of the GPIOLIB in drivers/gpio, support for some
20 of the GPIO functions such as reading and writing a pin will
21 be removed in favour of this common access method.
22
23 Once all the extant drivers have been converted, the functions
24 listed below will be removed (they may be marked as __deprecated
25 in the near future).
26
27 - s3c2410_gpio_getpin
28 - s3c2410_gpio_setpin
29
30
16Headers 31Headers
17------- 32-------
18 33
19 See include/asm-arm/arch-s3c2410/regs-gpio.h for the list 34 See arch/arm/mach-s3c2410/include/mach/regs-gpio.h for the list
20 of GPIO pins, and the configuration values for them. This 35 of GPIO pins, and the configuration values for them. This
21 is included by using #include <asm/arch/regs-gpio.h> 36 is included by using #include <mach/regs-gpio.h>
22 37
23 The GPIO management functions are defined in the hardware 38 The GPIO management functions are defined in the hardware
24 header include/asm-arm/arch-s3c2410/hardware.h which can be 39 header arch/arm/mach-s3c2410/include/mach/hardware.h which can be
25 included by #include <asm/arch/hardware.h> 40 included by #include <mach/hardware.h>
26 41
27 A useful amount of documentation can be found in the hardware 42 A useful amount of documentation can be found in the hardware
28 header on how the GPIO functions (and others) work. 43 header on how the GPIO functions (and others) work.