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mfd: Add Renesas RZ/G2L MTU3a core driver

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The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in
the Renesas RZ/G2L family SoCs. It consists of eight 16-bit timer
channels and one 32-bit timer channel. It supports the following
functions
 - Counter
 - Timer
 - PWM

The 8/16/32 bit registers are mixed in each channel.

Add MTU3a core driver for RZ/G2L SoC. The core driver shares the
clk and channel register access for the other child devices like
Counter, PWM and Clock event.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-3-biju.das.jz@bp.renesas.com
This commit is contained in:
Biju Das
2023-03-30 12:16:28 +01:00
committed by Lee Jones
parent 0a9d6b5429
commit 654c293e16
5 changed files with 806 additions and 0 deletions
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drivers/mfd/Kconfig
+10
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@@ -1315,6 +1315,16 @@ config MFD_SC27XX_PMIC
This driver provides common support for accessing the SC27xx PMICs,
and it also adds the irq_chip parts for handling the PMIC chip events.
config RZ_MTU3
bool "Renesas RZ/G2L MTU3a core driver"
depends on (ARCH_RZG2L && OF) || COMPILE_TEST
help
Select this option to enable Renesas RZ/G2L MTU3a core driver for
the Multi-Function Timer Pulse Unit 3 (MTU3a) hardware available
on SoCs from Renesas. The core driver shares the clk and channel
register access for the other child devices like Counter, PWM,
Clock Source, and Clock event.
config ABX500_CORE
bool "ST-Ericsson ABX500 Mixed Signal Circuit register functions"
depends on ARCH_U8500 || COMPILE_TEST