linux-kernel - Re: [PATCH] sdhci: tegra: Add comment for PADCALIB and PAD

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Message-ID: <CAPDyKFpscyQXYF+WQ98_sRvonCL+ZbddX+ctw3umQ8HLAqvxmA@mail.gmail.com>
Date:   Tue, 16 Jun 2020 13:32:27 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Sowjanya Komatineni <skomatineni@...dia.com>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jon Hunter <jonathanh@...dia.com>,
        linux-tegra <linux-tegra@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH] sdhci: tegra: Add comment for PADCALIB and PAD_CONTROL NVQUIRKS

On Fri, 5 Jun 2020 at 05:04, Sowjanya Komatineni <skomatineni@...dia.com> wrote:
>
> This patch adds comments about NVQUIRKS HAS_PADCALIB and NEEDS_PAD_CONTROL.
>
> Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>

Applied for next, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/host/sdhci-tegra.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
> index 3a372ab..0a3f9d0 100644
> --- a/drivers/mmc/host/sdhci-tegra.c
> +++ b/drivers/mmc/host/sdhci-tegra.c
> @@ -96,7 +96,16 @@
>  #define NVQUIRK_ENABLE_SDR50                           BIT(3)
>  #define NVQUIRK_ENABLE_SDR104                          BIT(4)
>  #define NVQUIRK_ENABLE_DDR50                           BIT(5)
> +/*
> + * HAS_PADCALIB NVQUIRK is for SoC's supporting auto calibration of pads
> + * drive strength.
> + */
>  #define NVQUIRK_HAS_PADCALIB                           BIT(6)
> +/*
> + * NEEDS_PAD_CONTROL NVQUIRK is for SoC's having separate 3V3 and 1V8 pads.
> + * 3V3/1V8 pad selection happens through pinctrl state selection depending
> + * on the signaling mode.
> + */
>  #define NVQUIRK_NEEDS_PAD_CONTROL                      BIT(7)
>  #define NVQUIRK_DIS_CARD_CLK_CONFIG_TAP                        BIT(8)
>  #define NVQUIRK_CQHCI_DCMD_R1B_CMD_TIMING              BIT(9)
> --
> 2.7.4
>