linux-kernel - Re: [PATCH v4 4/6] phy: qcom-qmp: qserdes-txrx-ufs: Add v6 register offsets

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Message-ID: <61be8f36-7171-dbc1-94ec-7e77438b37f5@linaro.org>
Date:   Tue, 17 Jan 2023 16:42:07 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Abel Vesa <abel.vesa@...aro.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH v4 4/6] phy: qcom-qmp: qserdes-txrx-ufs: Add v6 register
 offsets

On 17/01/2023 16:20, Abel Vesa wrote:
> The new SM8550 SoC bumps up the HW version of QMP phy to v6 for USB,
> UFS and PCIE g3x2. Add the new qserdes TX RX but UFS specific offsets
> in a dedicated header file.
> 
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> ---
>   .../phy-qcom-qmp-qserdes-txrx-ufs-v6.h        | 30 +++++++++++++++++++
>   drivers/phy/qualcomm/phy-qcom-qmp-ufs.c       |  2 ++
>   2 files changed, 32 insertions(+)
>   create mode 100644 drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
> new file mode 100644
> index 000000000000..6238dd2b8421
> --- /dev/null
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
> @@ -0,0 +1,30 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2023, Linaro Limited
> + */
> +
> +#ifndef QCOM_PHY_QMP_QSERDES_TXRX_UFS_V6_H_
> +#define QCOM_PHY_QMP_QSERDES_TXRX_UFS_V6_H_
> +
> +#define QSERDES_UFS_V6_TX_RES_CODE_LANE_TX			0x28
> +#define QSERDES_UFS_V6_TX_RES_CODE_LANE_RX			0x2c
> +#define QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_TX		0x30
> +#define QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_RX		0x34

Emty line please

> +#define QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE2			0x08
> +#define QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE4			0x10

Any chance to doublecheck these two values? I think that 
UCDR_FO_GAIN_RATE2 is 0xd4 (according to phy-qcom-ufs-qmp-v4-cape.h from 
msm-5.10)

> +
> +#define QSERDES_UFS_V6_RX_VGA_CAL_MAN_VAL			0x178
> +#define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B0			0x208
> +#define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B1			0x20c
> +#define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B3			0x214
> +#define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B6			0x220
> +#define QSERDES_UFS_V6_RX_MODE_RATE2_B3				0x238
> +#define QSERDES_UFS_V6_RX_MODE_RATE2_B6				0x244
> +#define QSERDES_UFS_V6_RX_MODE_RATE3_B3				0x25c
> +#define QSERDES_UFS_V6_RX_MODE_RATE3_B4				0x260
> +#define QSERDES_UFS_V6_RX_MODE_RATE3_B5				0x264
> +#define QSERDES_UFS_V6_RX_MODE_RATE3_B8				0x270
> +#define QSERDES_UFS_V6_RX_MODE_RATE4_B3				0x280
> +#define QSERDES_UFS_V6_RX_MODE_RATE4_B6				0x28c
> +
> +#endif
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> index 110d8fb9309f..a5cdd58c5b4d 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> @@ -27,6 +27,8 @@
>   #include "phy-qcom-qmp-pcs-ufs-v4.h"
>   #include "phy-qcom-qmp-pcs-ufs-v5.h"
>   
> +#include "phy-qcom-qmp-qserdes-txrx-ufs-v6.h"
> +
>   /* QPHY_SW_RESET bit */
>   #define SW_RESET				BIT(0)
>   /* QPHY_POWER_DOWN_CONTROL */

-- 
With best wishes
Dmitry