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<oliv3r>
Hi, if I want to set the state of a pin via the dts (without giving the pin an actual function/meaning) can I just add it to the pincntrller node? Or must it be referenced before the pinctroller actually configures the pin?
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<FergusL>
i2c being a bus can use multiple device on the same bus (with different adresses obviously!) BUT can I use an i2c peripheral that is alredy being used by a kernel module as RTC module? conflicts ahead?
<oliv3r>
Net147: yeah that's what i have, just need to know if the pin is configured, without being invoked
<oliv3r>
like you pasted :p
<Net147>
oliv3r: I don't think it is configured unless it is referenced
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<wens>
it is configured if the it is referenced _and_ the device is probed
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<oliv3r>
ah so we must probe it
<oliv3r>
that sucks :(
<oliv3r>
i want to probe it as a gpio with a default state then :p
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<oliv3r>
i'll set it up as a gpio from userspace then
<oliv3r>
really ugly, but the only way
<Net147>
oliv3r: wens: on another note, it seems simple-panel on system shutdown doesn't turn off the enable-gpio referenced in the DT... https://patchwork.kernel.org/patch/9885191/
<oliv3r>
unless it is actually configured via the devicetree, then manual exporting will fail and all is good again
<oliv3r>
ouch, nice find
<Net147>
or regulators if you use those
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<oliv3r>
i added it as a regulator
<Net147>
I wonder whether LCD panels that accept 24-bit input actually display at 24-bit or just do internal dithering to 18-bit
<Net147>
for non-IPS displays
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<wens>
oliv3r: take a look at gpio hogger
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<dothebart>
hy everyone..
<dothebart>
the statement abount mainline u-boot support of the r40 seems to be a bit outdated? http://linux-sunxi.org/R40
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<oliv3r>
wens: hmm, so if i have an enable-gpios or reset-gpios somewhere, i should really use the gpio node, rather then referencing the PIO directly?
<oliv3r>
but don't we use that for almost all our items now?
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<wens>
no, we are removing pinctrl references for GPIOs that don't need special treatment
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<oliv3r>
so is this gpio thing new?
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<lurchi_>
any reason the a64 dtsi does not include an SPI node?
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<BenG83>
mmh indeed
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<lurchi_>
and the sun6i driver has a small error for the h3, num_chipselect = 4 is wrong
<lurchi_>
although the register description mentions 4 cs, there is only 1 CS per spi controller
<MoeIcenowy>
lurchi_: I think the driver can deal with this situation
<lurchi_>
MoeIcenowy: how?
<lurchi_>
what do you expect to happen if you try to use e.g. spi0.2?
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<MoeIcenowy>
There just won't be such a device node
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<lurchi_>
MoeIcenowy: I would expect it to create 4 nodes, although only 1 being functional