From: 敬锐 <micky_ching@realsil.com.cn>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "ulf.hansson@linaro.org" <ulf.hansson@linaro.org>,
"sameo@linux.intel.com" <sameo@linux.intel.com>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"chris@printf.net" <chris@printf.net>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
王炜 <wei_wang@realsil.com.cn>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"rogerable@realtek.com" <rogerable@realtek.com>,
"lee.jones@linaro.org" <lee.jones@linaro.org>
Subject: Re: [PATCH 2/2] mmc: rtsx: add support for sdio card
Date: Fri, 28 Nov 2014 01:57:22 +0000 [thread overview]
Message-ID: <5477D682.30107@realsil.com.cn> (raw)
In-Reply-To: <20141127154332.GB4860@mwanda>
On 11/27/2014 11:43 PM, Dan Carpenter wrote:
>> + int stat_idx = sd_status_index(rsp_type);
> I have always hated this terrible pointer math. 5 is relative to
> pcr->host_cmds_ptr + 1. It's a mess...
5 mean CRC7 offset of Response R1, see SD spec V3.01 Page 82.
4.9.1 R1 (normal response command).
And we have to +1 to skip unused/undefined data.
prev parent reply other threads:[~2014-11-28 1:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-27 2:53 [PATCH 0/2] mmc: rtsx: add support for sdio card micky_ching
2014-11-27 2:53 ` [PATCH 1/2] mfd: rtsx: add func to split u32 into register micky_ching
2014-11-27 15:23 ` Dan Carpenter
2014-11-28 2:10 ` 敬锐
2014-11-28 8:54 ` Dan Carpenter
2014-11-28 9:54 ` 敬锐
2014-11-28 14:57 ` Dan Carpenter
2014-12-01 12:16 ` Lee Jones
2014-11-27 2:53 ` [PATCH 2/2] mmc: rtsx: add support for sdio card micky_ching
2014-11-27 15:43 ` Dan Carpenter
2014-11-28 1:57 ` 敬锐 [this message]
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