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Date: Fri, 3 Jul 2020 16:23:34 -0500 From: Alex Elder <elder@...aro.org> To: davem@...emloft.net, kuba@...nel.org Cc: evgreen@...omium.org, subashab@...eaurora.org, cpratapa@...eaurora.org, bjorn.andersson@...aro.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH net-next 1/2] net: ipa: introduce ipa_clock_rate() Create a new function that returns the current rate of the IPA core clock. Signed-off-by: Alex Elder <elder@...aro.org> --- drivers/net/ipa/ipa_clock.c | 6 ++++++ drivers/net/ipa/ipa_clock.h | 8 ++++++++ 2 files changed, 14 insertions(+) diff --git a/drivers/net/ipa/ipa_clock.c b/drivers/net/ipa/ipa_clock.c index c5204fd58ac4..0fbc8b1bdf41 100644 --- a/drivers/net/ipa/ipa_clock.c +++ b/drivers/net/ipa/ipa_clock.c @@ -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) { diff --git a/drivers/net/ipa/ipa_clock.h b/drivers/net/ipa/ipa_clock.h index bc52b35e6bb2..0f4e2877a6df 100644 --- a/drivers/net/ipa/ipa_clock.h +++ b/drivers/net/ipa/ipa_clock.h @@ -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 -- 2.25.1
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