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[09/20] phy: rockchip-samsung-dcphy: switch to HWORD_UPDATE macro

Message ID 20250612-byeword-update-v1-9-f4afb8f6313f@collabora.com
State New
Headers show
Series BYEWORD_UPDATE: unifying (most) HIWORD_UPDATE macros | expand

Commit Message

Nicolas Frattaroli June 12, 2025, 6:56 p.m. UTC 
The era of hand-rolled HIWORD_UPDATE macros is over, at least for those
drivers that use constant masks.

phy-rockchip-samsung-dcphy is actually an exemplary example, where the
similarities to FIELD_PREP were spotted and the driver local macro has
the same semantics as the new HWORD_UPDATE bitfield.h macro.

Still, get rid of FIELD_PREP_HIWORD now that a shared implementation
exists, replacing the two instances of it with HWORD_UPDATE. This gives
us slightly better error checking; the value is now checked to fit in 16
bits.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
---
 drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)
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Patch

diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c b/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c
index 28a052e17366516d5a99988bec9a52e3f0f09101..71e88635c95371fcc6f0f7227954e1f34dd97fc6 100644
--- a/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c
+++ b/drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c
@@ -20,12 +20,6 @@ 
 #include <linux/regmap.h>
 #include <linux/reset.h>
 
-#define FIELD_PREP_HIWORD(_mask, _val)		\
-	(					\
-		FIELD_PREP((_mask), (_val)) |	\
-		((_mask) << 16)			\
-	)
-
 #define BIAS_CON0		0x0000
 #define I_RES_CNTL_MASK		GENMASK(6, 4)
 #define I_RES_CNTL(x)		FIELD_PREP(I_RES_CNTL_MASK, x)
@@ -252,8 +246,8 @@ 
 
 /* MIPI_CDPHY_GRF registers */
 #define MIPI_DCPHY_GRF_CON0		0x0000
-#define S_CPHY_MODE			FIELD_PREP_HIWORD(BIT(3), 1)
-#define M_CPHY_MODE			FIELD_PREP_HIWORD(BIT(0), 1)
+#define S_CPHY_MODE			HWORD_UPDATE(BIT(3), 1)
+#define M_CPHY_MODE			HWORD_UPDATE(BIT(0), 1)
 
 enum hs_drv_res_ohm {
 	STRENGTH_30_OHM = 0x8,