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044458981f
The X-Powers AXP305 PMIC can be controlled via both I2C or RSB (an Allwinner specific bus similar to I2C), but we chose to use only RSB, because that's easier to program and also used by Linux. The AXP313a PMIC however supports only I2C, so we need to support both buses, and need to decide which to use at runtime. Prepare the PMIC code to add (back) I2C support. We initially used I2C on the H6/AXP805 combination, but replaced that later with RSB. So this patch is bringing some of that older code back. The decision whether to use I2C or RSB is made by the devicetree, since on some boards even RSB capable PMICs are controlled via I2C, since they share the bus with only I2C capable devices, for instance RTCs. At the moment this will still use RSB to drive the AXP305, but the (dynamic) I2C code will be used shortly to support the AXP313. This increases the code size by one 4K page, but with 80K out of the reserved 256K we are still very far away from our limit. Change-Id: I65c1e7df93dbd2dcd171b3fc486533a2948cc75b Signed-off-by: Andre Przywara <andre.przywara@arm.com> |
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| common | ||
| sun50i_a64 | ||
| sun50i_h6 | ||
| sun50i_h616 | ||
| sun50i_r329 | ||