So, this series adds SDHI/MMC support to the Renesas R-Car V3U SoC.
While SDHI is usually complicated, adding basic support to V3U was
refreshingly uncomplicated :) The crux was this time in the CPG driver.
In order to avoid code duplication, a CPG library was introduced, so we
can share the SD clock handling between generic Gen3, V3U, and hopefully
Gen4 later. The library turned out to be a quite nice solution for SDHI.
I am quite happy with it. I think we could have a similar benefit for
RPC, but we still need to see if this is enabled on V3U after all.
So much for now, looking forward to comments. The branch is here:
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/v3u/sdhi
Happy hacking,
Wolfram
Takeshi Saito (2):
arm64: dts: renesas: r8a779a0: Add MMC node
arm64: dts: renesas: falcon: Enable MMC
Wolfram Sang (4):
dt-bindings: mmc: renesas,sdhi: Add r8a779a0 support
clk: renesas: rcar-gen3: remove cpg_quirks access when registering SD
clock
clk: renesas: rcar-gen3: factor out CPG library
clk: renesas: r8a779a0: add SDHI support
.../devicetree/bindings/mmc/renesas,sdhi.yaml | 1 +
.../boot/dts/renesas/r8a779a0-falcon.dts | 41 +++
arch/arm64/boot/dts/renesas/r8a779a0.dtsi | 12 +
drivers/clk/renesas/Kconfig | 5 +
drivers/clk/renesas/Makefile | 1 +
drivers/clk/renesas/r8a779a0-cpg-mssr.c | 17 +-
drivers/clk/renesas/rcar-cpg-lib.c | 270 ++++++++++++++++++
drivers/clk/renesas/rcar-cpg-lib.h | 33 +++
drivers/clk/renesas/rcar-gen3-cpg.c | 267 +----------------
9 files changed, 387 insertions(+), 260 deletions(-)
create mode 100644 drivers/clk/renesas/rcar-cpg-lib.c
create mode 100644 drivers/clk/renesas/rcar-cpg-lib.h
--
2.28.0
