GPIO: Add driver for 74xx-ICs with MMIO access
This patch adds driver to support GPIO functionality for 74xx-compatible
ICs with MMIO access. Compatible models include:
1 bit: 741G125 (Input), 741G74 (Output)
2 bits: 742G125 (Input), 7474 (Output)
4 bits: 74125 (Input), 74175 (Output)
6 bits: 74365 (Input), 74174 (Output)
8 bits: 74244 (Input), 74273 (Output)
16 bits: 741624 (Input), 7416374 (Output)
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 0959ca9..cd33134 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -112,6 +112,20 @@
comment "Memory mapped GPIO drivers:"
+config GPIO_74XX_MMIO
+ tristate "GPIO driver for 74xx-ICs with MMIO access"
+ depends on OF_GPIO
+ select GPIO_GENERIC
+ help
+ Say yes here to support GPIO functionality for 74xx-compatible ICs
+ with MMIO access. Compatible models include:
+ 1 bit: 741G125 (Input), 741G74 (Output)
+ 2 bits: 742G125 (Input), 7474 (Output)
+ 4 bits: 74125 (Input), 74175 (Output)
+ 6 bits: 74365 (Input), 74174 (Output)
+ 8 bits: 74244 (Input), 74273 (Output)
+ 16 bits: 741624 (Input), 7416374 (Output)
+
config GPIO_CLPS711X
tristate "CLPS711X GPIO support"
depends on ARCH_CLPS711X || COMPILE_TEST