netdev - Re: [PATCH v3 11/20] drm/rockchip: inno-hdmi: switch to FIELD_PREP

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Message-ID: <5006976.yKVeVyVuyW@phil>
Date: Wed, 27 Aug 2025 09:32:26 +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>,
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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,
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 linux-pm@...r.kernel.org, linux-clk@...r.kernel.org, llvm@...ts.linux.dev,
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Subject:
 Re: [PATCH v3 11/20] drm/rockchip: inno-hdmi: switch to FIELD_PREP_WM16 macro

Am Montag, 25. August 2025, 10:28:31 Mitteleuropäische Sommerzeit schrieb Nicolas Frattaroli:
> The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
> drivers that use constant masks.
> 
> The inno-hdmi driver's own HIWORD_UPDATE macro is instantiated only
> twice. Remove it, and replace its uses with FIELD_PREP_WM16. Since
> FIELD_PREP_WM16 shifts the value for us, we replace using the mask as
> the value by simply using 1 instead.
> 
> With the new FIELD_PREP_WM16 macro, we gain better error checking and a
> central shared definition.
> 
> This has been compile-tested only as I lack hardware this old, but the
> change is trivial enough that I am fairly certain it's equivalent.
> 
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>

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