i2c: xlp9xx: Get clock frequency with clk API

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Get the input clock frequency to the controller from the linux clk
API, if it is available. This allows us to pass in the block input
frequency either from ACPI (using APD) or from device tree.

The old hardcoded frequency is used as default for backwards compatibility.

Signed-off-by: Jayachandran C <jnair@caviumnetworks.com>
Signed-off-by: Kamlakant Patel <kamlakant.patel@cavium.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Jayachandran C 2017-10-10 11:57:55 +05:30 • committed by Wolfram Sang

parent 1977dbefe9

commit c347b8fc22

1 changed files with 13 additions and 1 deletions

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drivers/i2c/busses/i2c-xlp9xx.c

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