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net: ipa: introduce ipa_clock_rate()

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Create a new function that returns the current rate of the IPA core
clock.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Elder 2020-07-03 16:23:34 -05:00 committed by David S. Miller
parent cd8700e45e
commit 78b348f3f1
2 changed files with 14 additions and 0 deletions
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6
drivers/net/ipa/ipa_clock.c
View File

@ -256,6 +256,12 @@ void ipa_clock_put(struct ipa *ipa)
mutex_unlock(&clock->mutex);
}
/* Return the current IPA core clock rate */
u32 ipa_clock_rate(struct ipa *ipa)
{
return ipa->clock ? (u32)clk_get_rate(ipa->clock->core) : 0;
}
/* Initialize IPA clocking */
struct ipa_clock *ipa_clock_init(struct device *dev)
{

8
drivers/net/ipa/ipa_clock.h
View File

@ -10,6 +10,14 @@ struct device;
struct ipa;
/**
* ipa_clock_rate() - Return the current IPA core clock rate
* @ipa: IPA structure
*
* Return: The current clock rate (in Hz), or 0.
*/
u32 ipa_clock_rate(struct ipa *ipa);
/**
* ipa_clock_init() - Initialize IPA clocking
* @dev: IPA device