linux-kernel - [PATCH v2 2/2] pwm/mtk_disp: move the reg enable trigger in config

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Message-ID: <20191216070123.114719-3-jitao.shi@mediatek.com>
Date:   Mon, 16 Dec 2019 15:01:23 +0800
From:   Jitao Shi <jitao.shi@...iatek.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-Koenig <u.kleine-koenig@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-pwm@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, CK Hu <ck.hu@...iatek.com>
CC:     <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <sj.huang@...iatek.com>,
        Jitao Shi <jitao.shi@...iatek.com>
Subject: [PATCH v2 2/2] pwm/mtk_disp: move the reg enable trigger in config

Remove the regist enable trigger setting in probe.
Move the trigger to mtk_disp_pwm_config().

Signed-off-by: Jitao Shi <jitao.shi@...iatek.com>
---
 drivers/pwm/pwm-mtk-disp.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/pwm/pwm-mtk-disp.c b/drivers/pwm/pwm-mtk-disp.c
index c7b14acc9316..c1aae5b5693b 100644
--- a/drivers/pwm/pwm-mtk-disp.c
+++ b/drivers/pwm/pwm-mtk-disp.c
@@ -122,6 +122,13 @@ static int mtk_disp_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		mtk_disp_pwm_update_bits(mdp, mdp->data->commit,
 					 mdp->data->commit_mask,
 					 0x0);
+	} else {
+		mtk_disp_pwm_update_bits(mdp, mdp->data->bls_debug,
+					 mdp->data->bls_debug_mask,
+					 mdp->data->bls_debug_mask);
+		mtk_disp_pwm_update_bits(mdp, mdp->data->con0,
+					 mdp->data->con0_sel,
+					 mdp->data->con0_sel);
 	}
 
 	clk_disable_unprepare(mdp->clk_mm);
@@ -207,19 +214,6 @@ static int mtk_disp_pwm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, mdp);
 
-	/*
-	 * For MT2701, disable double buffer before writing register
-	 * and select manual mode and use PWM_PERIOD/PWM_HIGH_WIDTH.
-	 */
-	if (!mdp->data->has_commit) {
-		mtk_disp_pwm_update_bits(mdp, mdp->data->bls_debug,
-					 mdp->data->bls_debug_mask,
-					 mdp->data->bls_debug_mask);
-		mtk_disp_pwm_update_bits(mdp, mdp->data->con0,
-					 mdp->data->con0_sel,
-					 mdp->data->con0_sel);
-	}
-
 	return 0;
 }
 
-- 
2.21.0