From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 01/15] clk: mux: Add unregistration API
Date: Fri, 5 Sep 2014 15:47:20 -0700 [thread overview]
Message-ID: <1409957256-23729-2-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1409957256-23729-1-git-send-email-sboyd@codeaurora.org>
Some drivers want to remove clocks they register with
clk_unregister(). Unfortunately, calling clk_unregister()
directly on the clock returned by clk_register_mux() would result
in a memory leak of the clk_mux struct. Add an API to free that
allocation and unregister the clock.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/clk/clk-mux.c | 15 +++++++++++++++
include/linux/clk-provider.h | 2 ++
2 files changed, 17 insertions(+)
diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c
index 4f96ff3ba728..c0cf9db9effa 100644
--- a/drivers/clk/clk-mux.c
+++ b/drivers/clk/clk-mux.c
@@ -177,3 +177,18 @@ struct clk *clk_register_mux(struct device *dev, const char *name,
NULL, lock);
}
EXPORT_SYMBOL_GPL(clk_register_mux);
+
+void clk_unregister_mux(struct clk *clk)
+{
+ struct clk_hw *hw;
+ struct clk_mux *mux;
+
+ hw = __clk_get_hw(clk);
+ if (!hw)
+ return;
+
+ mux = to_clk_mux(hw);
+ clk_unregister(clk);
+ kfree(mux);
+}
+EXPORT_SYMBOL_GPL(clk_unregister_mux);
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 411dd7eb2653..f0744b8de50a 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -401,6 +401,8 @@ struct clk *clk_register_mux_table(struct device *dev, const char *name,
void __iomem *reg, u8 shift, u32 mask,
u8 clk_mux_flags, u32 *table, spinlock_t *lock);
+void clk_unregister_mux(struct clk *clk);
+
void of_fixed_factor_clk_setup(struct device_node *node);
/**
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
next prev parent reply other threads:[~2014-09-05 22:47 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 22:47 [PATCH v2 00/15] Krait clocks + Krait CPUfreq Stephen Boyd
2014-09-05 22:47 ` Stephen Boyd [this message]
2014-09-05 22:47 ` [PATCH v2 02/15] clk: mux: Split out register accessors for reuse Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 03/15] clk: Add __clk_mux_determine_rate_closest Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 04/15] clk: divider: Make generic for usage elsewhere Stephen Boyd
2014-10-03 18:07 ` Stephen Boyd
2014-10-07 17:27 ` Srinivas Kandagatla
2014-10-07 18:26 ` Stephen Boyd
2014-10-07 19:28 ` Srinivas Kandagatla
2014-10-08 15:04 ` Srinivas Kandagatla
2014-09-05 22:47 ` Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 05/15] clk: Add safe switch hook Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 06/15] clk: Avoid sending high rates to downstream clocks during set_rate Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 07/15] clk: qcom: Add support for High-Frequency PLLs (HFPLLs) Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 08/15] clk: qcom: Add HFPLL driver Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 09/15] clk: qcom: Add MSM8960/APQ8064's HFPLLs Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 10/15] clk: qcom: Add IPQ806X's HFPLLs Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 11/15] clk: qcom: Add support for Krait clocks Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 12/15] clk: qcom: Add KPSS ACC/GCC driver Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 13/15] clk: qcom: Add Krait clock controller driver Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 14/15] cpufreq: Add module to register cpufreq on Krait CPUs Stephen Boyd
2014-09-08 4:46 ` Viresh Kumar
2014-09-08 17:15 ` Christopher Covington
2014-09-09 0:37 ` Stephen Boyd
2014-09-09 4:53 ` Viresh Kumar
2014-09-05 22:47 ` Stephen Boyd
2014-09-05 22:47 ` [PATCH v2 15/15] ARM: dts: qcom: Add necessary DT data for Krait cpufreq Stephen Boyd
2014-09-08 9:42 ` [PATCH v2 00/15] Krait clocks + Krait CPUfreq Pramod Gurav
2014-09-08 11:59 ` Pramod Gurav
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1409957256-23729-2-git-send-email-sboyd@codeaurora.org \
--to=sboyd@codeaurora.org \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).