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Groups > linux.kernel > #1487923

[PATCH v3 1/3] clk: mvebu: fix setting unwanted flags in CP110 gate clock

From Marcin Wojtas <mw@semihalf.com>
Newsgroups linux.kernel
Subject [PATCH v3 1/3] clk: mvebu: fix setting unwanted flags in CP110 gate clock
Date 2016-09-21 11:10 +0200
Message-ID <sjLHs-74R-5@gated-at.bofh.it> (permalink)
References <sjLHs-74R-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Armada CP110 system controller comprises its own routine responsble
for registering gate clocks. Among others 'flags' field in
struct clk_init_data was not set, using a random values, which
may cause an unpredicted behavior.

This patch fixes the problem by resetting all fields of clk_init_data
before assigning values for all gated clocks of Armada 7k/8k SoCs family.

Fixes: d3da3eaef7f4 ("clk: mvebu: new driver for Armada CP110 system ...")
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
CC: <stable@vger.kernel.org>
---
 drivers/clk/mvebu/cp110-system-controller.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/clk/mvebu/cp110-system-controller.c b/drivers/clk/mvebu/cp110-system-controller.c
index 7fa42d6..59fe76e 100644
--- a/drivers/clk/mvebu/cp110-system-controller.c
+++ b/drivers/clk/mvebu/cp110-system-controller.c
@@ -142,6 +142,8 @@ static struct clk *cp110_register_gate(const char *name,
 	if (!gate)
 		return ERR_PTR(-ENOMEM);
 
+	memset(&init, 0, sizeof(init));
+
 	init.name = name;
 	init.ops = &cp110_gate_ops;
 	init.parent_names = &parent_name;
-- 
1.8.3.1

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Thread

[PATCH v3 0/3] Armada 7k/8k CP110 system controller fixes Marcin Wojtas <mw@semihalf.com> - 2016-09-21 11:10 +0200
  [PATCH v3 1/3] clk: mvebu: fix setting unwanted flags in CP110 gate clock Marcin Wojtas <mw@semihalf.com> - 2016-09-21 11:10 +0200
  [PATCH v3 3/3] clk: mvebu: migrate CP110 system controller to clk_hw API and registration Marcin Wojtas <mw@semihalf.com> - 2016-09-21 11:10 +0200
  [PATCH v3 2/3] clk: mvebu: dynamically allocate resources in Armada CP110 system controller Marcin Wojtas <mw@semihalf.com> - 2016-09-21 11:10 +0200

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