clk: davinci: New driver for davinci PLL clocks

This adds a new driver for mach-davinci PLL clocks. This is porting the
code from arch/arm/mach-davinci/clock.c to the common clock framework.
Additionally, it adds device tree support for these clocks.

The ifeq ($(CONFIG_COMMON_CLK), y) in the Makefile is needed to prevent
compile errors until the clock code in arch/arm/mach-davinci is removed.

Note: although there are similar clocks for TI Keystone we are not able
to share the code for a few reasons. The keystone clocks are device tree
only and use legacy one-node-per-clock bindings. Also the register
layouts are a bit different, which would add even more if/else mess
to the keystone clocks. And the keystone PLL driver doesn't support
setting clock rates.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 3bdc260e36b7..e6b9f169a243 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13792,6 +13792,13 @@ F:	arch/arm/mach-davinci/
 F:      drivers/i2c/busses/i2c-davinci.c
 F:      arch/arm/boot/dts/da850*
 
+TI DAVINCI SERIES CLOCK DRIVER
+M:      David Lechner <david@lechnology.com>
+R:      Sekhar Nori <nsekhar@ti.com>
+S:      Maintained
+F:      Documentation/devicetree/bindings/clock/ti/davinci/
+F:      drivers/clk/davinci/
+
 TI DAVINCI SERIES GPIO DRIVER
 M:      Keerthy <j-keerthy@ti.com>
 L:      linux-gpio@vger.kernel.org