linux-kernel - Re: [PATCH 1/2] mmc: sdhci: move SDHCI_CAPABILITIES

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Date:   Wed, 15 Apr 2020 10:19:24 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-mmc@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>,
        masahiroy@...nel.org
Subject: Re: [PATCH 1/2] mmc: sdhci: move SDHCI_CAPABILITIES_1 to a more
 suitable place

On 8/04/20 10:21 am, Masahiro Yamada wrote:
> In the SDHCI specification, the Capabilities Register (Offset 0x40h)
> is the 64-bit width register, but in Linux, it is represented as two
> registers, SDHCI_CAPABILITIES and SDHCI_CAPABILITIES_1 so that drivers
> can use 32-bit register accessors.
> 
> The upper 32-bit field is associated with SDHCI_CAPABILITIES_1.
> 
> Move the definition of SDHCI_CAPABILITIES_1 to the correct place.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>

Acked-by: Adrian Hunter <adrian.hunter@...el.com>

> ---
> 
>  drivers/mmc/host/sdhci.h | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index 79dffbb731d3..b786b68e0302 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -220,6 +220,7 @@
>  #define  SDHCI_CAN_64BIT_V4	0x08000000
>  #define  SDHCI_CAN_64BIT	0x10000000
>  
> +#define SDHCI_CAPABILITIES_1	0x44
>  #define  SDHCI_SUPPORT_SDR50	0x00000001
>  #define  SDHCI_SUPPORT_SDR104	0x00000002
>  #define  SDHCI_SUPPORT_DDR50	0x00000004
> @@ -236,8 +237,6 @@
>  #define  SDHCI_CAN_DO_ADMA3	0x08000000
>  #define  SDHCI_SUPPORT_HS400	0x80000000 /* Non-standard */
>  
> -#define SDHCI_CAPABILITIES_1	0x44
> -
>  #define SDHCI_MAX_CURRENT		0x48
>  #define  SDHCI_MAX_CURRENT_LIMIT	0xFF
>  #define  SDHCI_MAX_CURRENT_330_MASK	0x0000FF
>