clk: bcm283x: add driver interfacing with Raspberry Pi's firmware

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Raspberry Pi's firmware offers an interface though which update it's
clock's frequencies. This is specially useful in order to change the CPU
clock (pllb_arm) which is 'owned' by the firmware and we're unable to
scale using the register interface provided by clk-bcm2835.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

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Nicolas Saenz Julienne 2019-06-12 20:24:54 +02:00 • committed by Stephen Boyd

parent 2256d89333

commit 4e85e535e6

3 changed files with 308 additions and 0 deletions

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7

drivers/clk/bcm/Kconfig

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1

drivers/clk/bcm/Makefile

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300

drivers/clk/bcm/clk-raspberrypi.c

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