powerpc, qe: add DTS support for parallel I/O ports
add DM support for parallel I/O ports on QUICC Engine Block
Signed-off-by: Heiko Schocher <hs@denx.de>
Patch-cc: Mario Six <mario.six@gdsys.cc>
Patch-cc: Qiang Zhao <qiang.zhao@nxp.com>
Patch-cc: Holger Brunck <holger.brunck@hitachi-powergrids.com>
Series-changes: 2
- remove RFC
- fixed Codingstyle errors, therefore new patch
powerpc, mpc83xx: fix codingstyle issues for qe_io.c
- moved DM part to drivers/pinctrl
Commit-notes:
Open questions / discussion:
- I let the old none DM based implementation in code
so boards should work with old implementation.
This should be removed if all boards are converted to
DM/DTS.
- Unfortunately linux DTS does not use "pinctrl-"
properties, instead "pio-handle" properties.
Even worser old U-Boot code initializes all pins
defined in "const qe_iop_conf_t qe_iop_conf_tab[]"
table in board code. As linux does the same I decided
to also scan through all subnodes containing "pio-map"
property and initialize them too.
The proper solution would be to check for "pio-handle"
when a device is probed.
END
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index cdbccfd..048583f 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -205,6 +205,13 @@
the GPIO definitions and pin control functions for each available
multiplex function.
+config PINCTRL_QE
+ bool "QE based pinctrl driver, like on mpc83xx"
+ depends on DM
+ help
+ This option is to enable the QE pinctrl driver for QE based io
+ controller.
+
config PINCTRL_ROCKCHIP_RV1108
bool "Rockchip rv1108 pin control driver"
depends on DM