Change the function syscon_regmap_lookup_by_phandle()
introduced by commit 6c3af1f24e4b ("syscon: dm: Add a
new method to get a regmap from DTS") to have
Linux-compatible syscon API and add test for this case:
phandle to node with generic "syscon" compatible
not bound as syscon UCLASS by default.
Without the patch the added test failed.
And I also update sysreset-syscon driver to use
this function and simplify the code,
tested on my stm32mp1 board with:
rcc_reboot: rcc-reboot@50000000 {
compatible = "syscon-reboot";
regmap = <&rcc>;
offset = <0x404>;
mask = <0x1>;
};
rcc: rcc@50000000 {
compatible = "st,stm32mp1-rcc", "syscon";
reg = <0x50000000 0x1000>;
#clock-cells = <1>;
#reset-cells = <1>;
};
PS: compatible st,stm32mp1-rcc is bound to driver
drivers/misc/stm32_rcc.c
Patrick Delaunay (2):
syscon: update syscon_regmap_lookup_by_phandle
sysreset: use syscon_regmap_lookup_by_phandle
arch/sandbox/dts/test.dts | 3 +-
drivers/core/syscon-uclass.c | 83 +++++++++++++++++++++++++++-----------
drivers/sysreset/sysreset_syscon.c | 15 +------
test/dm/syscon.c | 7 ++++
4 files changed, 70 insertions(+), 38 deletions(-)
--
2.7.4
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