From: Alex Elder <elder@linaro.org>
To: davem@davemloft.net, kuba@kernel.org
Cc: evgreen@chromium.org, subashab@codeaurora.org,
cpratapa@codeaurora.org, bjorn.andersson@linaro.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net-next 1/2] net: ipa: introduce ipa_clock_rate()
Date: Fri, 3 Jul 2020 16:23:34 -0500 [thread overview]
Message-ID: <20200703212335.465355-2-elder@linaro.org> (raw)
In-Reply-To: <20200703212335.465355-1-elder@linaro.org>
Create a new function that returns the current rate of the IPA core
clock.
Signed-off-by: Alex Elder <elder@linaro.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
next prev parent reply other threads:[~2020-07-03 21:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-03 21:23 [PATCH net-next 0/2] net: ipa: fix HOLB timer register use Alex Elder
2020-07-03 21:23 ` Alex Elder [this message]
2020-07-03 21:23 ` [PATCH net-next 2/2] net: ipa: fix HOLB timer calculation Alex Elder
2020-07-03 21:37 ` [PATCH net-next 0/2] net: ipa: fix HOLB timer register use David Miller
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