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Patch "MIPS: lantiq: add clk_round_rate()" has been added to the 4.3-stable tree

PATCH [email protected] 1 participant 1 message Dec 7, 2015

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This is a note to let you know that I've just added the patch titled

MIPS: lantiq: add clk_round_rate()

to the 4.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
mips-lantiq-add-clk_round_rate.patch
and it can be found in the queue-4.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 4e7d30dba493b60a80e9b590add1b4402265cc83 Mon Sep 17 00:00:00 2001

From: Hauke Mehrtens <[email protected]>
Date: Sun, 25 Oct 2015 23:21:42 +0100
Subject: MIPS: lantiq: add clk_round_rate()

From: Hauke Mehrtens <[email protected]>

commit 4e7d30dba493b60a80e9b590add1b4402265cc83 upstream.

This adds a basic implementation of clk_round_rate()
The clk_round_rate() function is called by multiple drivers and subsystems now and the lantiq clk driver is supposed to export this, but doesn't do so, this causes linking problems like this one:
ERROR: "clk_round_rate" [drivers/media/v4l2-core/videodev.ko] undefined!

Patchwork: https://patchwork.linux-mips.org/patch/11358/

---
 arch/mips/lantiq/clk.c |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)
arch/mips/lantiq/clk.c +17 -0
@@ -99,6 +99,23 @@ int clk_set_rate(struct clk *clk, unsign
 }
 EXPORT_SYMBOL(clk_set_rate);
 
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	if (unlikely(!clk_good(clk)))
+		return 0;
+	if (clk->rates && *clk->rates) {
+		unsigned long *r = clk->rates;
+
+		while (*r && (*r != rate))
+			r++;
+		if (!*r) {
+			return clk->rate;
+		}
+	}
+	return rate;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
 int clk_enable(struct clk *clk)
 {
 	if (unlikely(!clk_good(clk)))

Patches currently in stable-queue which might be from [email protected] are

queue-4.3/mips-lantiq-add-clk_round_rate.patch