rockchip: Port IO-domain driver for RK3568 from linux
Port the Rockchip IO-domain driver for RK3568 from linux.
The driver auto probe after bind to configure IO-domain based on the
regulator voltage. Compared to the linux driver this driver is not
notified about regulator voltage changes and only configure IO-domain
based on the initial voltage autoset by the regulator.
It is not recommended to enable MMC_IO_VOLTAGE or the mmc signal voltage
and IO-domain may end up out of sync.
Based on the linux commit 28b05a64e47c ("soc: rockchip: io-domain: add
rk3568 support").
Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index fd8805f..b67b823 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -69,6 +69,7 @@
endif
obj-$(CONFIG_ROCKCHIP_EFUSE) += rockchip-efuse.o
obj-$(CONFIG_ROCKCHIP_OTP) += rockchip-otp.o
+obj-$(CONFIG_$(SPL_TPL_)ROCKCHIP_IODOMAIN) += rockchip-io-domain.o
obj-$(CONFIG_SANDBOX) += syscon_sandbox.o misc_sandbox.o
obj-$(CONFIG_SIFIVE_OTP) += sifive-otp.o
obj-$(CONFIG_SMSC_LPC47M) += smsc_lpc47m.o