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gpio: Merge the OPEN_DRAIN interface with the DRIVE_STRENGTH interface.

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Fold the OPEN_DRAIN GPIO interface into the DRIVE_STRENGTH interface.
The latter is more flexibile, suporting a larger range of hardware
capability.

Change-Id: I7ee01c8d375e3e4fe8ad10c075e365d246e83c75
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
This commit is contained in:
Marcus Shawcroft 2017-01-24 10:57:08 +00:00
commit 762c8e0d20
1 changed files with 2 additions and 16 deletions
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18
include/gpio.h
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@ -120,20 +120,6 @@ extern "C" {
/** Disable GPIO pin. */
#define GPIO_PIN_DISABLE (1 << 11)
/** @cond INTERNAL_HIDDEN */
#define GPIO_PP_OD_POS 12
/** @endcond */
/** Enable GPIO pin push-pull. */
#define GPIO_PUSH_PULL (0 << GPIO_PP_OD_POS)
/** Enable GPIO pin open drain. */
#define GPIO_OPEN_DRAIN (1 << GPIO_PP_OD_POS)
/** @cond INTERNAL_HIDDEN */
#define GPIO_PP_OD_MASK (1 << GPIO_PP_OD_POS)
/** @endcond */
/* GPIO_DS_* are for pin drive strength configuration.
*
* The drive strength of individual pins can be configured
@ -161,7 +147,7 @@ extern "C" {
*/
/** @cond INTERNAL_HIDDEN */
#define GPIO_DS_LOW_POS 13
#define GPIO_DS_LOW_POS 12
#define GPIO_DS_LOW_MASK (0x3 << GPIO_DS_LOW_POS)
/** @endcond */
@ -182,7 +168,7 @@ extern "C" {
#define GPIO_DS_DISCONNECT_LOW (0x3 << GPIO_DS_LOW_POS)
/** @cond INTERNAL_HIDDEN */
#define GPIO_DS_HIGH_POS 15
#define GPIO_DS_HIGH_POS 14
#define GPIO_DS_HIGH_MASK (0x3 << GPIO_DS_HIGH_POS)
/** @endcond */