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clk: multiplier: add explicit big endian support

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Add a clock specific flag to switch register accesses to big endian, to
allow runtime configuration of big endian multiplier clocks.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Jonas Gorski 2019-04-18 13:12:07 +02:00 • committed by Stephen Boyd
parent d1c8a501ec
commit 9427b71a85
2 changed files with 23 additions and 3 deletions
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4
include/linux/clk-provider.h
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@ -666,6 +666,9 @@ void clk_hw_unregister_fractional_divider(struct clk_hw *hw);
* leaving the parent rate unmodified.
* CLK_MULTIPLIER_ROUND_CLOSEST - Makes the best calculated divider to be
* rounded to the closest integer instead of the down one.
* CLK_MULTIPLIER_BIG_ENDIAN - By default little endian register accesses are
* used for the multiplier register. Setting this flag makes the register
* accesses big endian.
*/
struct clk_multiplier {
struct clk_hw hw;
@ -680,6 +683,7 @@ struct clk_multiplier {
#define CLK_MULTIPLIER_ZERO_BYPASS BIT(0)
#define CLK_MULTIPLIER_ROUND_CLOSEST BIT(1)
#define CLK_MULTIPLIER_BIG_ENDIAN BIT(2)
extern const struct clk_ops clk_multiplier_ops;