Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2183349
Conflicts:
drivers/clk/sunxi-ng/Makefile
Contextual conflicts due to missed upstream commit c8c525b06f53.
c8c525b06f53 clk: sunxi-ng: Allow drivers to be built as modules
commit d91612d7f01aca454469976d25db761c5085ae4d
Author: Samuel Holland <samuel@sholland.org>
Date: Wed Feb 2 20:17:35 2022 -0600
clk: sunxi-ng: Add support for the sun6i RTC clocks
The RTC power domain in sun6i and newer SoCs manages the 16 MHz RC
oscillator (called "IOSC" or "osc16M") and the optional 32 kHz crystal
oscillator (called "LOSC" or "osc32k"). Starting with the H6, this power
domain also handles the 24 MHz DCXO (called variously "HOSC", "dcxo24M",
or "osc24M") as well. The H6 also adds a calibration circuit for IOSC.
Later SoCs introduce further variations on the design:
- H616 adds an additional mux for the 32 kHz fanout source.
- R329 adds an additional mux for the RTC timekeeping clock, a clock
for the SPI bus between power domains inside the RTC, and removes the
IOSC calibration functionality.
Take advantage of the CCU framework to handle this increased complexity.
This driver is intended to be a drop-in replacement for the existing RTC
clock provider. So some runtime adjustment of the clock parents is
needed, both to handle hardware differences, and to support the old
binding which omitted some of the input clocks.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220203021736.13434-6-samuel@sholland.org
(cherry picked from commit d91612d7f01aca454469976d25db761c5085ae4d)
Signed-off-by: Gavin Shan <gshan@redhat.com>
3740638849