config: Add GPIO_PCF857X=m

The PCF8574 & 5 are I2C-connected 8- & 16-bit GPIO expanders.

See: https://github.com/raspberrypi/linux/issues/2294

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

diff --git a/arch/arm/configs/bcm2709_defconfig b/arch/arm/configs/bcm2709_defconfig
index dc8b77f0637dcd5e93a4b6636028c396563154fb..8800a1081bb726cb9ff5075c2b4296a86a57a3df 100644 (file)
--- a/arch/arm/configs/bcm2709_defconfig
+++ b/arch/arm/configs/bcm2709_defconfig
@@ -633,6 +633,7 @@ CONFIG_PPS_CLIENT_GPIO=m
 CONFIG_GPIO_SYSFS=y
 CONFIG_GPIO_BCM_EXP=y
 CONFIG_GPIO_BCM_VIRT=y
+CONFIG_GPIO_PCF857X=m
 CONFIG_GPIO_ARIZONA=m
 CONFIG_GPIO_STMPE=y
 CONFIG_GPIO_MCP23S08=m

diff --git a/arch/arm/configs/bcmrpi_defconfig b/arch/arm/configs/bcmrpi_defconfig
index 2e5a841c54ea53a0376b804880c489000d5e05a5..28266427f843a3eb91452a0e98714ff842aca7cc 100644 (file)
--- a/arch/arm/configs/bcmrpi_defconfig
+++ b/arch/arm/configs/bcmrpi_defconfig
@@ -627,6 +627,7 @@ CONFIG_PPS=m
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PPS_CLIENT_GPIO=m
 CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_PCF857X=m
 CONFIG_GPIO_ARIZONA=m
 CONFIG_GPIO_STMPE=y
 CONFIG_GPIO_MCP23S08=m