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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZv7j-005ZDu-E1; Wed, 08 Mar 2023 14:50:35 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZv7g-005ZCU-IU; Wed, 08 Mar 2023 14:50:34 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id DD1F6B81D16; Wed, 8 Mar 2023 14:50:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75ABAC433EF; Wed, 8 Mar 2023 14:50:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678287029; bh=k9CLjWy5LWSWIB8cQjG++VGjuzyrJmcSHzOfzGCShqI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TntO7ahg63zljF8Crhsm2K5w+vTvTTXZqa9CQWD0fz28JGAVrwfPJYpl83vsj4Uy3 7zzBuqM2MIDnOmgvp1nztTy3gGMdeNaPZ2D1r+cAEghYw1R2iP2TSML3+tk6EtbtF4 UvN4LzpBPIi0ExCW15UCqCUsztrAbZjP4Y7o/nwk= Date: Wed, 8 Mar 2023 15:50:24 +0100 From: Greg Kroah-Hartman To: AngeloGioacchino Del Regno Cc: thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de, matthias.bgg@gmail.com, weiqing.kong@mediatek.com, jitao.shi@mediatek.com, linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com Subject: Re: [PATCH 0/2] pwm: mtk-disp: Fix backlight configuration at boot Message-ID: References: <20230123160615.375969-1-angelogioacchino.delregno@collabora.com> <06918fde-64ea-37b2-da1a-1c8316457223@collabora.com> <06909bd8-3da2-1cf0-82ac-3ed4f3e63def@collabora.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <06909bd8-3da2-1cf0-82ac-3ed4f3e63def@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230308_065032_782026_0C1118B0 X-CRM114-Status: GOOD ( 19.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Mar 08, 2023 at 12:46:07PM +0100, AngeloGioacchino Del Regno wrote: > Il 23/02/23 15:16, AngeloGioacchino Del Regno ha scritto: > > Il 23/01/23 17:06, AngeloGioacchino Del Regno ha scritto: > > > Since the pwm-mtk-disp driver was fixed to get PWM_EN state from the > > > right register, an old two-wrongs-make-one-right issue emerged: as a > > > result, MT8192 Asurada Spherion got no backlight at boot unless a > > > suspend/resume cycle was performed. > > > Also, the backlight would sometimes not get updated with the requested > > > value, requiring the user to change it back and forth until it worked. > > > = > > > This series fixes both of the aforementioned issues found on MT8192. > > > = > > > AngeloGioacchino Del Regno (2): > > > =A0=A0 pwm: mtk-disp: Disable shadow registers before setting backlig= ht > > > =A0=A0=A0=A0 values > > > =A0=A0 pwm: mtk-disp: Configure double buffering before reading in > > > =A0=A0=A0=A0 .get_state() > > > = > > > =A0 drivers/pwm/pwm-mtk-disp.c | 34 +++++++++++++++++++++++----------- > > > =A0 1 file changed, 23 insertions(+), 11 deletions(-) > > > = > > = > > Gentle ping for this one: this is fixing backlight issues on multiple M= ediaTek > > SoCs and was well tested. > > = > > Thanks, > > Angelo > = > Since this series was sent more than one month ago, and since this fixes = broken > backlight on a number of Chromebooks with MT8183 and MT8192 SoCs, and see= n the > urgency of getting these fixes in, I'm adding Greg to the loop. $ ./scripts/get_maintainer.pl drivers/pwm/pwm-mtk-disp.c Thierry Reding (maintainer:PWM SUBSYSTEM) "Uwe Kleine-K=F6nig" (reviewer:PWM SUBSYST= EM) Matthias Brugger (maintainer:ARM/Mediatek SoC supp= ort) AngeloGioacchino Del Regno (revie= wer:ARM/Mediatek SoC support) linux-pwm@vger.kernel.org (open list:PWM SUBSYSTEM) linux-kernel@vger.kernel.org (open list:ARM/Mediatek SoC support) linux-arm-kernel@lists.infradead.org (moderated list:ARM/Mediatek SoC suppo= rt) linux-mediatek@lists.infradead.org (moderated list:ARM/Mediatek SoC support) I don't see my name in there, did I become the PWM maintainer somehow? What's wrong with Thierry taking this like normal? thanks, greg k-h _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel