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From: Erin Lo <erin.lo@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	Mike Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <robh@kernel.org>
Cc: John Crispin <blogic@openwrt.org>, Arnd Bergmann <arnd@arndb.de>,
	Sascha Hauer <kernel@pengutronix.de>,
	Daniel Kurtz <djkurtz@chromium.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <linux-clk@vger.kernel.org>,
	<srv_heupstream@mediatek.com>,
	James Liao <jamesjj.liao@mediatek.com>,
	Erin Lo <erin.lo@mediatek.com>
Subject: [PATCH v9 01/10] clk: fix initial state of critical clock's parents
Date: Wed, 22 Jun 2016 15:40:20 +0800	[thread overview]
Message-ID: <1466581229-2342-2-git-send-email-erin.lo@mediatek.com> (raw)
In-Reply-To: <1466581229-2342-1-git-send-email-erin.lo@mediatek.com>

From: James Liao <jamesjj.liao@mediatek.com>

This patch fixed wrong state of parent clocks if they are registered
after critical clocks.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
---
 drivers/clk/clk.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index d584004..e9f5f89 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2388,8 +2388,15 @@ static int __clk_core_init(struct clk_core *core)
 	hlist_for_each_entry_safe(orphan, tmp2, &clk_orphan_list, child_node) {
 		struct clk_core *parent = __clk_init_parent(orphan);
 
-		if (parent)
+		if (parent) {
 			clk_core_reparent(orphan, parent);
+
+			if (orphan->prepare_count)
+				clk_core_prepare(parent);
+
+			if (orphan->enable_count)
+				clk_core_enable(parent);
+		}
 	}
 
 	/*
-- 
1.9.1

  reply	other threads:[~2016-06-22  7:41 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-22  7:40 [PATCH v9 00/10] Add clock support for Mediatek MT2701 Erin Lo
2016-06-22  7:40 ` Erin Lo [this message]
2016-07-02  1:21   ` [PATCH v9 01/10] clk: fix initial state of critical clock's parents Stephen Boyd
2016-07-04  3:51     ` James Liao
2016-07-08 23:32       ` Michael Turquette
2016-07-09  0:46         ` Stephen Boyd
2016-07-11  8:24         ` James Liao
2016-08-03  5:46           ` James Liao
2016-08-09  5:39             ` James Liao
2016-08-10 21:09               ` Stephen Boyd
2016-08-12  8:17                 ` James Liao
2016-08-13  0:39                   ` Stephen Boyd
2016-08-15  2:47                     ` James Liao
2016-06-22  7:40 ` [PATCH v9 02/10] clk: mediatek: remove __init from clk registration functions Erin Lo
2016-06-22  7:40 ` [PATCH v9 03/10] clk: mediatek: Refine the makefile to support multiple clock drivers Erin Lo
2016-08-13  0:41   ` Stephen Boyd
2016-06-22  7:40 ` [PATCH v9 04/10] dt-bindings: ARM: Mediatek: Document bindings for MT2701 Erin Lo
2016-06-22  7:40 ` [PATCH v9 05/10] clk: mediatek: Add dt-bindings for MT2701 clocks Erin Lo
2016-06-22  7:40 ` [PATCH v9 06/10] clk: mediatek: Add MT2701 clock support Erin Lo
2016-08-13  0:44   ` Stephen Boyd
2016-08-15  3:00     ` James Liao
2016-08-15 18:16       ` Stephen Boyd
2016-06-22  7:40 ` [PATCH v9 07/10] reset: mediatek: Add MT2701 reset controller dt-binding file Erin Lo
2016-06-22  7:40 ` [PATCH v9 08/10] reset: mediatek: Add MT2701 reset driver Erin Lo
2016-06-22  7:40 ` [PATCH v9 09/10] arm: dts: mt2701: Add clock controller device nodes Erin Lo
2016-06-22  7:40 ` [PATCH v9 10/10] arm: dts: mt2701: Use real clock for UARTs Erin Lo

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