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authorJames Hogan <james.hogan@imgtec.com>2013-05-24 20:21:12 +0400
committerLinus Walleij <linus.walleij@linaro.org>2013-06-16 13:56:50 +0400
commita2df4269cad79635201587c5c5404f0b1cb0b05c (patch)
treede7f7f4147fb891561970c30aaf054f9ba070043 /drivers/pinctrl/pinconf-generic.c
parent73ae368cd309dae277b66444d471ac62825ee407 (diff)
downloadlinux-a2df4269cad79635201587c5c5404f0b1cb0b05c.tar.xz
pinconf-generic: add BIAS_BUS_HOLD pinconf
Add a new PIN_CONFIG_BIAS_BUS_HOLD pin configuration for a bus holder pin mode (also known as bus keeper, or repeater). This is a weak latch which drives the last value on a tristate bus. Another device on the bus can drive the bus high or low before going tristate to change the value driven by the pin. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinconf-generic.c')
-rw-r--r--drivers/pinctrl/pinconf-generic.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 33a5392cf40c..ba465b3e85ef 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -37,6 +37,7 @@ struct pin_config_item {
static struct pin_config_item conf_items[] = {
PCONFDUMP(PIN_CONFIG_BIAS_DISABLE, "input bias disabled", NULL),
PCONFDUMP(PIN_CONFIG_BIAS_HIGH_IMPEDANCE, "input bias high impedance", NULL),
+ PCONFDUMP(PIN_CONFIG_BIAS_BUS_HOLD, "input bias bus hold", NULL),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", NULL),
PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL),