linux-kernel - [PATCH 06/20] phy: rockchip-emmc: switch to HWORD

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Message-Id: <20250612-byeword-update-v1-6-f4afb8f6313f@collabora.com>
Date: Thu, 12 Jun 2025 20:56:08 +0200
From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
To: Yury Norov <yury.norov@...il.com>, 
 Rasmus Villemoes <linux@...musvillemoes.dk>, 
 Jaehoon Chung <jh80.chung@...sung.com>, 
 Ulf Hansson <ulf.hansson@...aro.org>, Heiko Stuebner <heiko@...ech.de>, 
 Shreeya Patel <shreeya.patel@...labora.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 
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 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 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, 
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 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>
Subject: [PATCH 06/20] phy: rockchip-emmc: switch to HWORD_UPDATE macro

The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.

Replace the implementation of the rockchip eMMC PHY driver's
HIWORD_UPDATE macro with bitfield.h's HWORD_UPDATE. This makes the
change more easily reviewable.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
---
 drivers/phy/rockchip/phy-rockchip-emmc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-emmc.c b/drivers/phy/rockchip/phy-rockchip-emmc.c
index 20023f6eb9944eaab505101d57e806476ecfac71..42423d4cd1811cd039a701895758050483d1c959 100644
--- a/drivers/phy/rockchip/phy-rockchip-emmc.c
+++ b/drivers/phy/rockchip/phy-rockchip-emmc.c
@@ -6,6 +6,7 @@
  * Copyright (C) 2016 ROCKCHIP, Inc.
  */

+#include <linux/bitfield.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/mfd/syscon.h>
@@ -21,7 +22,7 @@
  * only if BIT(x + 16) set to 1 the BIT(x) can be written.
  */
 #define HIWORD_UPDATE(val, mask, shift) \
-		((val) << (shift) | (mask) << ((shift) + 16))
+		(HWORD_UPDATE((mask) << (shift), (val)))

 /* Register definition */
 #define GRF_EMMCPHY_CON0		0x0

-- 
2.49.0