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From:   Rex-BC Chen <rex-bc.chen@mediatek.com>
To:     <thierry.reding@gmail.com>, <u.kleine-koenig@pengutronix.de>,
        <lee.jones@linaro.org>, <matthias.bgg@gmail.com>
CC:     <linux-pwm@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@mediatek.com>,
        Rex-BC Chen <rex-bc.chen@mediatek.com>,
        Jitao Shi <jitao.shi@mediatek.com>
Subject: [v3,PATCH 1/3] pwm: mtk_disp: clear the clock operations
Date:   Tue, 6 Apr 2021 17:57:40 +0800
Message-ID: <1617703062-4251-2-git-send-email-rex-bc.chen@mediatek.com>
In-Reply-To: <1617703062-4251-1-git-send-email-rex-bc.chen@mediatek.com>
References: <1617703062-4251-1-git-send-email-rex-bc.chen@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Remove the clk_prepare from mtk_disp_pwm_probe.
Remove the clk_unprepare from mtk_disp_pwm_remove.

After using atomic API and get_state() function which are implemented in PATCH [2/3], [3/3],
clk_prepare/clk_unprepare are useless in probe/remove function.
So we remove clk_prepare/clk_unprepare in probe/remove fuinction.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 drivers/pwm/pwm-mtk-disp.c | 23 ++---------------------
 1 file changed, 2 insertions(+), 21 deletions(-)

diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index 87c6b4bc5d43..21416a8b6b47 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -192,14 +192,6 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
 	if (IS_ERR(mdp->clk_mm))
 		return PTR_ERR(mdp->clk_mm);
 
-	ret = clk_prepare(mdp->clk_main);
-	if (ret < 0)
-		return ret;
-
-	ret = clk_prepare(mdp->clk_mm);
-	if (ret < 0)
-		goto disable_clk_main;
-
 	mdp->chip.dev = &pdev->dev;
 	mdp->chip.ops = &mtk_disp_pwm_ops;
 	mdp->chip.base = -1;
@@ -208,7 +200,7 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
 	ret = pwmchip_add(&mdp->chip);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
-		goto disable_clk_mm;
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, mdp);
@@ -227,24 +219,13 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
 	}
 
 	return 0;
-
-disable_clk_mm:
-	clk_unprepare(mdp->clk_mm);
-disable_clk_main:
-	clk_unprepare(mdp->clk_main);
-	return ret;
 }
 
 static int mtk_disp_pwm_remove(struct platform_device *pdev)
 {
 	struct mtk_disp_pwm *mdp = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = pwmchip_remove(&mdp->chip);
-	clk_unprepare(mdp->clk_mm);
-	clk_unprepare(mdp->clk_main);
 
-	return ret;
+	return pwmchip_remove(&mdp->chip);
 }
 
 static const struct mtk_pwm_data mt2701_pwm_data = {
-- 
2.18.0