From: Adrian Hunter <adrian.hunter@intel.com>
To: Dong Aisheng <dongas86@gmail.com>, Haibo Chen <haibo.chen@nxp.com>
Cc: ulf.hansson@linaro.org, aisheng.dong@nxp.com, linux-mmc@vger.kernel.org
Subject: Re: [PATCH] mmc: sdhci-esdhc-imx: do not touch other bit when config DTOCV
Date: Thu, 18 Aug 2016 15:49:30 +0300 [thread overview]
Message-ID: <70d47eac-250c-ef88-c59e-0af03245488c@intel.com> (raw)
In-Reply-To: <20160816073050.GA9211@shlinux2>
On 16/08/16 10:30, Dong Aisheng wrote:
> On Mon, Aug 15, 2016 at 04:19:38PM +0800, Haibo Chen wrote:
>> Now, when call esdhc_set_timeout() to set the data timeout counter value,
>> IPP_RST_N(bit 23) is wrongly affected. This patch add a mask to avoid this.
>>
>> Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
>
> Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
>
> Regards
> Dong Aisheng
>
>> ---
>> drivers/mmc/host/sdhci-esdhc-imx.c | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
>> index 99e0b33..437c448 100644
>> --- a/drivers/mmc/host/sdhci-esdhc-imx.c
>> +++ b/drivers/mmc/host/sdhci-esdhc-imx.c
>> @@ -31,6 +31,7 @@
>> #include "sdhci-pltfm.h"
>> #include "sdhci-esdhc.h"
>>
>> +#define ESDHC_SYS_CTRL_DTOCV_MASK 0x0f
>> #define ESDHC_CTRL_D3CD 0x08
>> #define ESDHC_BURST_LEN_EN_INCR (1 << 27)
>> /* VENDOR SPEC register */
>> @@ -937,7 +938,8 @@ static void esdhc_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)
>> struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
>>
>> /* use maximum timeout counter */
>> - sdhci_writeb(host, esdhc_is_usdhc(imx_data) ? 0xF : 0xE,
>> + esdhc_clrset_le(host, ESDHC_SYS_CTRL_DTOCV_MASK,
>> + esdhc_is_usdhc(imx_data) ? 0xF : 0xE,
>> SDHCI_TIMEOUT_CONTROL);
>> }
>>
>> --
>> 1.9.1
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
next prev parent reply other threads:[~2016-08-18 12:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-15 8:19 [PATCH] mmc: sdhci-esdhc-imx: do not touch other bit when config DTOCV Haibo Chen
2016-08-16 7:30 ` Dong Aisheng
2016-08-18 12:49 ` Adrian Hunter [this message]
2016-08-22 13:40 ` Ulf Hansson
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