[PATCH v2 09/12] phy: phy-mtk-dp: Rewrite and document default driving param macros

[sashiko-bot at kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] The patch uses `FIELD_PREP_CONST` (and earlier patches in the series use `FIELD_PREP`) without explicitly including `<linux/bitfield.h>`.
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--- Patch [9]: [PATCH v2 09/12] phy: phy-mtk-dp: Rewrite and document default driving param macros ---
commit e682fc4989b37eaa003ac03d4d2a9a69b306a63b
Author: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>

phy: phy-mtk-dp: Rewrite and document default driving param macros

This commit rewrites the default driving parameters for the PHY using
FIELD_PREP_CONST. It also adds definitions and comments to explain what
these parameters are supposed to set.

> diff --git a/drivers/phy/mediatek/phy-mtk-dp.c b/drivers/phy/mediatek/phy-mtk-dp.c
> index d0ef8e8f6670c..9a800d6b91c3f 100644
> --- a/drivers/phy/mediatek/phy-mtk-dp.c
> +++ b/drivers/phy/mediatek/phy-mtk-dp.c
> @@ -85,51 +85,47 @@

[ ... ]

> +#define XTP_LN_TX_LCTXC_SW2_PRE1	GENMASK(5, 0)
> +#define XTP_LN_TX_LCTXC_SW3_PRE0	GENMASK(13, 8)
> +
> +#define BUILD_DRIVING_PARAM_0(sw0_pre0, sw0_pre1, sw0_pre2, sw0_pre3) (	\
> +	FIELD_PREP_CONST(XTP_LN_TX_LCTXC_SW0_PRE0, sw0_pre0) |		\

[Severity: Low]
This isn't a bug, but should linux/bitfield.h be explicitly included since
this code now uses FIELD_PREP_CONST? 

Relying on implicit inclusions can cause build breakages in the future if a
header like linux/phy/phy.h or linux/regmap.h stops including it.

> +	FIELD_PREP_CONST(XTP_LN_TX_LCTXC_SW0_PRE1, sw0_pre1) |		\
> +	FIELD_PREP_CONST(XTP_LN_TX_LCTXC_SW0_PRE2, sw0_pre2) |		\
> +	FIELD_PREP_CONST(XTP_LN_TX_LCTXC_SW0_PRE3, sw0_pre3)		\
> +)

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Sashiko AI review · https://sashiko.dev/#/patchset/20260707141931.191172-1-angelogioacchino.delregno@collabora.com?part=9