[PATCH v2 0/8] pinctrl-rockchip: Change wrong initial assumptions
Max Schwarz
max.schwarz at online.de
Wed May 7 03:04:36 PDT 2014
Am Montag, 5. Mai 2014, 13:57:31 schrieb Heiko Stübner:
> Initially due to lack of documentation and (personal) understanding
> I assumed that the area holding the iomux settings would be separate
> from everything else, while in fact the grf registers contain not only
> pinctrl stuff but also dma, usb-phy and general soc-status settings.
> Also things like drive-strength we do not support currently are intermixed.
>
> The same is true for the pmu, which does not only contain power domains
> but also the system reset as well as well as general registers surviving
> system-resets. Additionally the rk3188 moved parts of the pull-setting
> registers into the pmu space.
>
> While this wasn't a problem until now, the upcoming rk3288 introduces
> additional changes to both the grf and pmu areas. On it even part of
> the pinmux registers move into the pmu space.
>
> The code in it's current form supports both the old as well as the
> changed bindings.
>
> As stated in the v1 thread, this is also a first step to deprecate the
> wrongly included gpio-controllers which now duplicate the recently added
> gpio-dwapb, that should be used instead.
>
>
> changes since v1:
> - add select MFD_SYSCON as suggested by Max
>
> Heiko Stuebner (8):
> pinctrl: rockchip: do not require 2nd register area
> pinctrl: rockchip: use regmaps instead of raw mappings
> pinctrl: rockchip: rockchip_pinctrl in rockchip_get_bank_data
> pinctrl: rockchip: let pmu registers be supplied by a syscon
> pinctrl: rockchip: only map bank0-pull-region when pmu regmap missing
> pinctrl: rockchip: base regmap supplied by a syscon
> dt-bindings: adapt rockchip-pinctrl doc to changed bindings
> ARM: dts: rockchip: convert pinctrl nodes to new bindings
>
> .../bindings/pinctrl/rockchip,pinctrl.txt | 28 +++-
> arch/arm/boot/dts/rk3066a.dtsi | 2 +-
> arch/arm/boot/dts/rk3188.dtsi | 9 +-
> arch/arm/boot/dts/rk3xxx.dtsi | 9 +-
> drivers/pinctrl/Kconfig | 1 +
> drivers/pinctrl/pinctrl-rockchip.c | 178
> +++++++++++++++------ 6 files changed, 165 insertions(+), 62 deletions(-)
This series
Acked-by: Max Schwarz <max.schwarz at online.de>
Cheers,
Max
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