linux-kernel - Re: [PATCH v2 2/2] phy: rockchip: inno-usb2: Add usb2 phy support for rk3562

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Message-ID: <fad2cf24-0a1b-4408-915c-d42b4c0fcc00@rock-chips.com>
Date: Wed, 7 May 2025 10:06:53 +0800
From: Kever Yang <kever.yang@...k-chips.com>
To: Vinod Koul <vkoul@...nel.org>
Cc: linux-rockchip@...ts.infradead.org, Frank Wang
 <frank.wang@...k-chips.com>, William Wu <william.wu@...k-chips.com>,
 linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
 Kishon Vijay Abraham I <kishon@...nel.org>,
 linux-arm-kernel@...ts.infradead.org, Heiko Stübner
 <heiko@...ech.de>
Subject: Re: [PATCH v2 2/2] phy: rockchip: inno-usb2: Add usb2 phy support for
 rk3562

Hi Vinod,

     Do you have any comments for this patch set?

     Please let me know if there is anything need to update.


Thanks,
- Kever
On 2025/4/15 13:00, Kever Yang wrote:
> From: Frank Wang <frank.wang@...k-chips.com>
>
> RK3652 has one USB2.0 PHY with two ports, the OTG port support OTG
> and BC1.2, the SoC provide USB GRF and APB to access the registers.
>
> This adds vbus detection function control and make the below tuning
> to enhance the usb2-phy SQ for RK3562 SoC.
>   - enable pre-emphasis during non-chirp phase
>   - set HS eye height to 425mv
>
> Signed-off-by: Frank Wang <frank.wang@...k-chips.com>
> Signed-off-by: William Wu <william.wu@...k-chips.com>
> Signed-off-by: Kever Yang <kever.yang@...k-chips.com>
> Reviewed-by: Heiko Stuebner <heiko@...ech.de>
> ---
>
> Changes in v2:
> - Update the commit msg and collect review tag;
>
>   drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 49 +++++++++++++++++++
>   1 file changed, 49 insertions(+)
>
> diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
> index b5e6a864deeb..ada1f02601ef 100644
> --- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
> +++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
> @@ -1892,6 +1892,54 @@ static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = {
>   	{ /* sentinel */ }
>   };
>   
> +static const struct rockchip_usb2phy_cfg rk3562_phy_cfgs[] = {
> +	{
> +		.reg = 0xff740000,
> +		.num_ports	= 2,
> +		.clkout_ctl	= { 0x0108, 4, 4, 1, 0 },
> +		.port_cfgs	= {
> +			[USB2PHY_PORT_OTG] = {
> +				.phy_sus	= { 0x0100, 8, 0, 0, 0x1d1 },
> +				.bvalid_det_en	= { 0x0110, 2, 2, 0, 1 },
> +				.bvalid_det_st	= { 0x0114, 2, 2, 0, 1 },
> +				.bvalid_det_clr = { 0x0118, 2, 2, 0, 1 },
> +				.idfall_det_en	= { 0x0110, 5, 5, 0, 1 },
> +				.idfall_det_st	= { 0x0114, 5, 5, 0, 1 },
> +				.idfall_det_clr = { 0x0118, 5, 5, 0, 1 },
> +				.idrise_det_en	= { 0x0110, 4, 4, 0, 1 },
> +				.idrise_det_st	= { 0x0114, 4, 4, 0, 1 },
> +				.idrise_det_clr = { 0x0118, 4, 4, 0, 1 },
> +				.ls_det_en	= { 0x0110, 0, 0, 0, 1 },
> +				.ls_det_st	= { 0x0114, 0, 0, 0, 1 },
> +				.ls_det_clr	= { 0x0118, 0, 0, 0, 1 },
> +				.utmi_avalid	= { 0x0120, 10, 10, 0, 1 },
> +				.utmi_bvalid	= { 0x0120, 9, 9, 0, 1 },
> +				.utmi_ls	= { 0x0120, 5, 4, 0, 1 },
> +			},
> +			[USB2PHY_PORT_HOST] = {
> +				.phy_sus	= { 0x0104, 8, 0, 0x1d2, 0x1d1 },
> +				.ls_det_en	= { 0x0110, 1, 1, 0, 1 },
> +				.ls_det_st	= { 0x0114, 1, 1, 0, 1 },
> +				.ls_det_clr	= { 0x0118, 1, 1, 0, 1 },
> +				.utmi_ls	= { 0x0120, 17, 16, 0, 1 },
> +				.utmi_hstdet	= { 0x0120, 19, 19, 0, 1 }
> +			}
> +		},
> +		.chg_det = {
> +			.cp_det		= { 0x0120, 24, 24, 0, 1 },
> +			.dcp_det	= { 0x0120, 23, 23, 0, 1 },
> +			.dp_det		= { 0x0120, 25, 25, 0, 1 },
> +			.idm_sink_en	= { 0x0108, 8, 8, 0, 1 },
> +			.idp_sink_en	= { 0x0108, 7, 7, 0, 1 },
> +			.idp_src_en	= { 0x0108, 9, 9, 0, 1 },
> +			.rdm_pdwn_en	= { 0x0108, 10, 10, 0, 1 },
> +			.vdm_src_en	= { 0x0108, 12, 12, 0, 1 },
> +			.vdp_src_en	= { 0x0108, 11, 11, 0, 1 },
> +		},
> +	},
> +	{ /* sentinel */ }
> +};
> +
>   static const struct rockchip_usb2phy_cfg rk3568_phy_cfgs[] = {
>   	{
>   		.reg = 0xfe8a0000,
> @@ -2210,6 +2258,7 @@ static const struct of_device_id rockchip_usb2phy_dt_match[] = {
>   	{ .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs },
>   	{ .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs },
>   	{ .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs },
> +	{ .compatible = "rockchip,rk3562-usb2phy", .data = &rk3562_phy_cfgs },
>   	{ .compatible = "rockchip,rk3568-usb2phy", .data = &rk3568_phy_cfgs },
>   	{ .compatible = "rockchip,rk3576-usb2phy", .data = &rk3576_phy_cfgs },
>   	{ .compatible = "rockchip,rk3588-usb2phy", .data = &rk3588_phy_cfgs },