linux-kernel - Re: [PATCH 2/4] phy: qcom-qmp: Use register defines

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Message-ID: <9e69d0b803cdbfe69d6edb62b8aa9b24@codeaurora.org>
Date:   Fri, 20 Dec 2019 08:44:25 +0800
From:   cang@...eaurora.org
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Kishon Vijay Abraham I <kishon@...com>,
        linux-arm-msm@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Jeffrey Hugo <jeffrey.l.hugo@...il.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] phy: qcom-qmp: Use register defines

On 2019-12-19 23:04, Vinod Koul wrote:
> We already define register offsets so use them in register layout.
> 
> Signed-off-by: Vinod Koul <vkoul@...nel.org>
> ---
>  drivers/phy/qualcomm/phy-qcom-qmp.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c
> b/drivers/phy/qualcomm/phy-qcom-qmp.c
> index c2e800a3825a..06f971ca518e 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
> @@ -166,8 +166,8 @@ static const unsigned int 
> sdm845_ufsphy_regs_layout[] = {
>  };
> 
>  static const unsigned int sm8150_ufsphy_regs_layout[] = {
> -	[QPHY_START_CTRL]		= 0x00,
> -	[QPHY_PCS_READY_STATUS]		= 0x180,
> +	[QPHY_START_CTRL]		= QPHY_V4_PHY_START,
> +	[QPHY_SW_RESET]			= QPHY_V4_SW_RESET,
>  };
> 
>  static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = {

Why is the QPHY_PCS_READY_STATUS removed here? Then what "status" are we
polling here for UFS PHY?

<snip>
      if (cfg->type == PHY_TYPE_UFS) {
          status = pcs + cfg->regs[QPHY_PCS_READY_STATUS];
          mask = PCS_READY;
          ready = PCS_READY;
      } else {
<snip>

Can Guo.