Message-ID: <881125850.0ifERbkFSE@phil>
Date: Wed, 27 Aug 2025 09:30:18 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Yury Norov <yury.norov@...il.com>,
 Rasmus Villemoes <linux@...musvillemoes.dk>,
 Jaehoon Chung <jh80.chung@...sung.com>, Ulf Hansson <ulf.hansson@...aro.org>,
 Shreeya Patel <shreeya.patel@...labora.com>,
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 Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
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Cc: kernel@...labora.com, linux-kernel@...r.kernel.org,
 linux-mmc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-media@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-phy@...ts.infradead.org,
 linux-sound@...r.kernel.org, netdev@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com, linux-pci@...r.kernel.org,
 linux-pm@...r.kernel.org, linux-clk@...r.kernel.org, llvm@...ts.linux.dev,
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>,
 Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
Subject:
 Re: [PATCH v3 10/20] drm/rockchip: dw_hdmi_qp: switch to FIELD_PREP_WM16
 macro

Am Montag, 25. August 2025, 10:28:30 Mitteleuropäische Sommerzeit schrieb Nicolas Frattaroli:
> The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
> drivers that use constant masks.
> 
> Replace this driver's HIWORD_UPDATE with the FIELD_PREP_WM16 macro from
> hw_bitfield.h. While at it, disambiguate the GRF write to SOC_CON7 by
> splitting the definition into the individual bitflags. This is done
> because FIELD_PREP_WM16 shifts the value for us according to the mask,
> so writing the mask to itself to enable two bits is no longer something
> that can be done. It should also not be done anyway because it hides the
> true meaning of those two individual bit flags.
> 
> HDMI output with this patch has been tested on both RK3588 and RK3576.
> On the former, with both present HDMI connectors.
> 
> Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
> Tested-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>

Reviewed-by: Heiko Stuebner <heiko@...ech.de>

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