linux-kernel - [PATCH v2 3/8] Input: ep93xx_keypad: Prepare clock before using it

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Date:   Mon, 26 Jul 2021 16:59:51 +0300
From:   Nikita Shubin <nikita.shubin@...uefel.me>
To:     Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Nikita Shubin <nikita.shubin@...uefel.me>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
        linux-input@...r.kernel.org (open list:INPUT (KEYBOARD, MOUSE, JOYSTICK
        , TOUCHSCREEN)...), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 3/8] Input: ep93xx_keypad: Prepare clock before using it

From: Alexander Sverdlin <alexander.sverdlin@...il.com>

Use clk_prepare_enable()/clk_disable_unprepare() in preparation for switch
to Common Clock Framework.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@...il.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
---
 drivers/input/keyboard/ep93xx_keypad.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index c8194333d612..e0e931e796fa 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -157,7 +157,7 @@ static int ep93xx_keypad_open(struct input_dev *pdev)
 
 	if (!keypad->enabled) {
 		ep93xx_keypad_config(keypad);
-		clk_enable(keypad->clk);
+		clk_prepare_enable(keypad->clk);
 		keypad->enabled = true;
 	}
 
@@ -169,7 +169,7 @@ static void ep93xx_keypad_close(struct input_dev *pdev)
 	struct ep93xx_keypad *keypad = input_get_drvdata(pdev);
 
 	if (keypad->enabled) {
-		clk_disable(keypad->clk);
+		clk_disable_unprepare(keypad->clk);
 		keypad->enabled = false;
 	}
 }
-- 
2.26.2