linux-kernel - Re: [PATCH] pwm: mtk-disp: Fix the parameters calculated by the enabled flag of disp

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Date:   Tue, 30 Aug 2022 12:36:48 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     xinlei.lee@...iatek.com, thierry.reding@...il.com,
        u.kleine-koenig@...gutronix.de, matthias.bgg@...il.com,
        jitao.shi@...iatek.com
Cc:     linux-pwm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH] pwm: mtk-disp: Fix the parameters calculated by the
 enabled flag of disp_pwm.

Il 29/08/22 06:04, xinlei.lee@...iatek.com ha scritto:
> From: xinlei lee <xinlei.lee@...iatek.com>
> 
> In the original mtk_disp_pwm_get_state() function, the result of reading
> con0 & BIT(0) is enabled as disp_pwm.
> In order to conform to the register table, we should use the disp_pwm
> base address as the enabled judgment.
> 
> Fixes: 3f2b16734914 ("pwm: mtk-disp: Implement atomic API .get_state()")
> 
> Signed-off-by: xinlei lee <xinlei.lee@...iatek.com>
> Reviewed-by: Miles Chen <miles.chen@...iatek.com>

This fix is valid for all MediaTek SoCs that are currently supported in
pwm-mtk-disp (and some others that aren't supported yet).

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>