From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Date: Wed, 24 May 2017 09:39:31 +0000 (+0200)
Subject: clk: meson: meson8b: mark clk81 as critical
X-Git-Tag: v4.13-rc1~117^2~48^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=be58e496698dbd757bc4abe4173168cb2e6cb299;p=karo-tx-linux.git

clk: meson: meson8b: mark clk81 as critical

Disabling clk81 results in an immediate freeze of the whole system. This
can happen "accidentally" when the last child-clock of clk81 is disabled
(in this case the common clock framework also disables clk81, even if it
was only enabled indirectly before).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index e9985503165c..9d1aaf6e9ac6 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -399,7 +399,7 @@ struct clk_gate meson8b_clk81 = {
 		.ops = &clk_gate_ops,
 		.parent_names = (const char *[]){ "mpeg_clk_div" },
 		.num_parents = 1,
-		.flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED),
+		.flags = (CLK_SET_RATE_PARENT | CLK_IS_CRITICAL),
 	},
 };