clk: ti: am33xx: add DPLL clock drivers
The digital phase-locked loop (DPLL) provides all interface clocks and
functional clocks to the processor of the AM33xx device. The AM33xx
device integrates five different DPLLs:
* Core DPLL
* Per DPLL
* LCD DPLL
* DDR DPLL
* MPU DPLL
The patch adds support for the compatible strings:
* "ti,am3-dpll-core-clock"
* "ti,am3-dpll-no-gate-clock"
* "ti,am3-dpll-no-gate-j-type-clock"
* "ti,am3-dpll-x2-clock"
The code is loosely based on the drivers/clk/ti/dpll.c drivers of the
Linux kernel version 5.9-rc7.
For DT binding details see:
- Documentation/devicetree/bindings/clock/ti/dpll.txt
Signed-off-by: Dario Binacchi <dariobin@libero.it>
diff --git a/drivers/clk/ti/Kconfig b/drivers/clk/ti/Kconfig
index be4f268..c430dd9 100644
--- a/drivers/clk/ti/Kconfig
+++ b/drivers/clk/ti/Kconfig
@@ -3,6 +3,13 @@
# Copyright (C) 2020 Dario Binacchi <dariobin@libero.it>
#
+config CLK_TI_AM3_DPLL
+ bool "TI AM33XX Digital Phase-Locked Loop (DPLL) clock drivers"
+ depends on CLK && OF_CONTROL
+ help
+ This enables the DPLL clock drivers support on AM33XX SoCs. The DPLL
+ provides all interface clocks and functional clocks to the processor.
+
config CLK_TI_MUX
bool "TI mux clock driver"
depends on CLK && OF_CONTROL && CLK_CCF