[PATCH v5 18/18] phy: rockchip: usbdp: Add some extra debug messages

[sashiko-bot at kernel.org]

Thank you for your contribution! Sashiko AI review found 1 potential issue(s) to consider:
- [Low] Missing explicit inclusion of `<linux/string_choices.h>` for string choice helpers.
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commit 1df9f844b4fa19da9efe1fba10ad8a1d451bea55
Author: Sebastian Reichel <sebastian.reichel at collabora.com>

phy: rockchip: usbdp: Add some extra debug messages

This commit adds additional debug logging to the Rockchip USBDP PHY
driver. The new messages report port status and track PHY initialization
to help debug USB-C hotplugging behavior.

> diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rockchip/phy-rockchip-usbdp.c
> index 236331cc0d132..4042e2dd81219 100644
> --- a/drivers/phy/rockchip/phy-rockchip-usbdp.c
> +++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c
> @@ -491,6 +491,8 @@ static void rk_udphy_u3_port_disable(struct rk_udphy *udphy, u8 disable)
>  	const struct rk_udphy_cfg *cfg = udphy->cfgs;
>  	const struct rk_udphy_grf_reg *preg;
>  
> +	dev_dbg(udphy->dev, "USB3 port %s\n", str_on_off(!disable));

[Severity: Low]
Does this file explicitly include <linux/string_choices.h>? Relying on
implicit inclusion for str_on_off() might cause build failures in the future
if header dependencies are reorganized across architectures.

[ ... ]

> @@ -784,6 +786,10 @@ static int rk_udphy_init(struct rk_udphy *udphy)
>  	const struct rk_udphy_cfg *cfg = udphy->cfgs;
>  	int ret;
>  
> +	dev_dbg(udphy->dev, "(re-)init PHY with USB=%s and DP=%s\n",
> +		str_enabled_disabled(udphy->mode & UDPHY_MODE_USB),
> +		str_enabled_disabled(udphy->mode & UDPHY_MODE_DP));

[Severity: Low]
Similarly, should we add <linux/string_choices.h> here to ensure
str_enabled_disabled() is safely resolved without relying on transitive
includes?

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Sashiko AI review · https://sashiko.dev/#/patchset/20260612-rockchip-usbdp-cleanup-v5-0-efc83069869f@collabora.com?part=18