linux-kernel - Re: [PATCH v4 1/6] mfd: rtsx: add func to split u32 into register

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 8 Dec 2014 09:57:46 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	micky_ching@...lsil.com.cn
Cc:	sameo@...ux.intel.com, chris@...ntf.net, ulf.hansson@...aro.org,
	devel@...uxdriverproject.org, linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org, gregkh@...uxfoundation.org,
	dan.carpenter@...cle.com, rogerable@...ltek.com,
	wei_wang@...lsil.com.cn
Subject: Re: [PATCH v4 1/6] mfd: rtsx: add func to split u32 into register

On Fri, 05 Dec 2014, micky_ching@...lsil.com.cn wrote:
> From: Micky Ching <micky_ching@...lsil.com.cn>
> 
> Add helper function to write u32 to registers, if we want to put u32
> value to 4 continuous register, this can help us reduce tedious work.
> 
> Signed-off-by: Micky Ching <micky_ching@...lsil.com.cn>
> Acked-by: Lee Jones <lee.jones@...aro.org>
> ---
>  include/linux/mfd/rtsx_pci.h | 9 +++++++++
>  1 file changed, 9 insertions(+)

Applied, thanks.

> diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
> index 74346d5..9234449 100644
> --- a/include/linux/mfd/rtsx_pci.h
> +++ b/include/linux/mfd/rtsx_pci.h
> @@ -558,6 +558,7 @@
>  #define SD_SAMPLE_POINT_CTL		0xFDA7
>  #define SD_PUSH_POINT_CTL		0xFDA8
>  #define SD_CMD0				0xFDA9
> +#define   SD_CMD_START			0x40
>  #define SD_CMD1				0xFDAA
>  #define SD_CMD2				0xFDAB
>  #define SD_CMD3				0xFDAC
> @@ -967,4 +968,12 @@ static inline u8 *rtsx_pci_get_cmd_data(struct rtsx_pcr *pcr)
>  	return (u8 *)(pcr->host_cmds_ptr);
>  }
>  
> +static inline void rtsx_pci_write_be32(struct rtsx_pcr *pcr, u16 reg, u32 val)
> +{
> +	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg,     0xFF, val >> 24);
> +	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 1, 0xFF, val >> 16);
> +	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 2, 0xFF, val >> 8);
> +	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 3, 0xFF, val);
> +}
> +
>  #endif

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/