[PATCH v1 0/6] add "simple-mfd" support for MediaTek audio subsystem

Ryder Lee
2018-01-04T07:44:02Z

Hi,

The reason for this series is that MediaTek audio hardware block expose more than
a single functionality, but register those in different kernel subsystems.
Same issue could also be found in MMSYS: https://lkml.org/lkml/2017/11/14/669

Hence use "simple-mfd" to handle this kind of situation, that will make sure all
children are registered - and we don't need to write an MFD driver specially.
It was tested on the bananapi-r2 and the MT2701/MT7622 EVB.

[1]~[3]: modify the current audio driver accordingly.
[5][6]: add clock driver for MT2701 and add missing data for MT7622.

changes since v1:
- To avoid writing an MFD driver, we add "simple-mfd" in the audsys binding.
- Move three top clocks to audio driver [1] as we remove mfd/mtk-audsys.c in v1.

Ryder Lee (6):
ASoC: mediatek: add some core clocks for MT2701 AFE
ASoC: mediatek: modify MT2701 AFE driver to adapt mfd device
ASoC: mediatek: update MT2701 AFE documentation to adapt mfd device
dt-bindings: clock: mediatek: add "simple-mfd" in audsys documentation
clk: mediatek: update missing clock data for MT7622 audsys
clk: mediatek: add audsys support for MT2701

.../bindings/arm/mediatek/mediatek,audsys.txt | 21 ++-
.../devicetree/bindings/sound/mt2701-afe-pcm.txt | 171 +++++++++++---------
drivers/clk/mediatek/Kconfig | 6 +
drivers/clk/mediatek/Makefile | 1 +
drivers/clk/mediatek/clk-mt2701-aud.c | 174 +++++++++++++++++++++
drivers/clk/mediatek/clk-mt7622-aud.c | 3 +-
include/dt-bindings/clock/mt7622-clk.h | 3 +-
sound/soc/mediatek/mt2701/mt2701-afe-clock-ctrl.c | 30 +++-
sound/soc/mediatek/mt2701/mt2701-afe-common.h | 3 +
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 45 +++---
sound/soc/mediatek/mt2701/mt2701-reg.h | 1 -
11 files changed, 345 insertions(+), 113 deletions(-)
create mode 100644 drivers/clk/mediatek/clk-mt2701-aud.c

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1.9.1