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From: Adrian Hunter <adrian.hunter@intel.com>
To: Sarthak Garg <sartgarg@codeaurora.org>, ulf.hansson@linaro.org
Cc: vbadigan@codeaurora.org, stummala@codeaurora.org,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>
Subject: Re: [PATCH V3 2/2] mmc: sdhci-msm: Use maximum possible data timeout value
Date: Fri, 6 Aug 2021 17:31:12 +0300 [thread overview]
Message-ID: <22347b1a-1e58-5e08-03a0-5688d6c34cee@intel.com> (raw)
In-Reply-To: <1628232901-30897-3-git-send-email-sartgarg@codeaurora.org>
On 6/08/21 9:55 am, Sarthak Garg wrote:
> From: Sahitya Tummala <stummala@codeaurora.org>
>
> The Qcom SD controller defines the usage of 0xF in data
> timeout counter register (0x2E) which is actually a reserved
> bit as per specification. This would result in maximum of 21.26 secs
> timeout value.
>
> Some SDcard taking more time than 2.67secs (timeout value corresponding
> to 0xE) and with that observed data timeout errors.
> So increasing the timeout value to max possible timeout.
>
> Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
> Signed-off-by: Sarthak Garg <sartgarg@codeaurora.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
> drivers/mmc/host/sdhci-msm.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index e44b7a6..19e4673 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -2696,6 +2696,9 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>
> msm_host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_NEED_RSP_BUSY;
>
> + /* Set the timeout value to max possible */
> + host->max_timeout_count = 0xF;
> +
> pm_runtime_get_noresume(&pdev->dev);
> pm_runtime_set_active(&pdev->dev);
> pm_runtime_enable(&pdev->dev);
>
next prev parent reply other threads:[~2021-08-06 14:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-16 14:03 [PATCH V1 0/2] Introduce max_timeout_count in sdhci_host for vendor needs Sarthak Garg
2021-07-16 14:03 ` [PATCH V1 1/2] mmc: sdhci: Introduce max_timeout_count variable in sdhci_host Sarthak Garg
2021-07-16 14:03 ` [PATCH V1 2/2] mmc: sdhci-msm: Use maximum possible data timeout value Sarthak Garg
2021-07-16 23:54 ` Bjorn Andersson
2021-07-29 4:46 ` [PATCH V2 0/2] Introduce max_timeout_count in sdhci_host for vendor Sarthak Garg
2021-07-29 4:46 ` [PATCH V2 1/2] mmc: sdhci: Introduce max_timeout_count variable in sdhci_host Sarthak Garg
2021-08-03 8:23 ` Adrian Hunter
2021-08-06 6:51 ` [PATCH V3 0/2] Introduce max_timeout_count in sdhci_host for vendor Sarthak Garg
2021-08-06 6:54 ` [PATCH V3 0/2] Introduce max_timeout_count in sdhci_host for vendor needs Sarthak Garg
2021-08-06 6:54 ` [PATCH V3 1/2] mmc: sdhci: Introduce max_timeout_count variable in sdhci_host Sarthak Garg
2021-08-06 14:30 ` Adrian Hunter
2021-08-06 6:55 ` [PATCH V3 2/2] mmc: sdhci-msm: Use maximum possible data timeout value Sarthak Garg
2021-08-06 14:31 ` Adrian Hunter [this message]
2021-08-16 13:59 ` [PATCH V3 0/2] Introduce max_timeout_count in sdhci_host for vendor needs Ulf Hansson
2021-07-29 4:46 ` [PATCH V2 2/2] mmc: sdhci-msm: Use maximum possible data timeout value Sarthak Garg
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