This is a note to let you know that I've just added the patch titled
ARM: davinci: da850: don't add emac clock to lookup table twice
to the 4.9-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:
arm-davinci-da850-don-t-add-emac-clock-to-lookup-table-twice.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ef37427ac5677331145ab27a17e6f5f1b43f0c11 Mon Sep 17 00:00:00 2001
From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Date: Wed, 7 Dec 2016 16:22:16 +0100
Subject: ARM: davinci: da850: don't add emac clock to lookup table twice
From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
commit ef37427ac5677331145ab27a17e6f5f1b43f0c11 upstream.
Similarly to the aemif clock - this screws up the linked list of clock
children. Create a separate clock for mdio inheriting the rate from
emac_clk.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
[nsekhar@xxxxxx: add a comment over mdio_clk to explaing its existence +
commit headline updates]
Signed-off-by: Sekhar Nori <nsekhar@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-davinci/da850.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -319,6 +319,16 @@ static struct clk emac_clk = {
.gpsc = 1,
};
+/*
+ * In order to avoid adding the emac_clk to the clock lookup table twice (and
+ * screwing up the linked list in the process) create a separate clock for
+ * mdio inheriting the rate from emac_clk.
+ */
+static struct clk mdio_clk = {
+ .name = "mdio",
+ .parent = &emac_clk,
+};
+
static struct clk mcasp_clk = {
.name = "mcasp",
.parent = &async3_clk,
@@ -494,7 +504,7 @@ static struct clk_lookup da850_clks[] =
CLK(NULL, "arm", &arm_clk),
CLK(NULL, "rmii", &rmii_clk),
CLK("davinci_emac.1", NULL, &emac_clk),
- CLK("davinci_mdio.0", "fck", &emac_clk),
+ CLK("davinci_mdio.0", "fck", &mdio_clk),
CLK("davinci-mcasp.0", NULL, &mcasp_clk),
CLK("davinci-mcbsp.0", NULL, &mcbsp0_clk),
CLK("davinci-mcbsp.1", NULL, &mcbsp1_clk),
Patches currently in stable-queue which might be from bgolaszewski@xxxxxxxxxxxx are
queue-4.9/arm-davinci-da850-don-t-add-emac-clock-to-lookup-table-twice.patch
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