From: Adrian Hunter <adrian.hunter@intel.com>
To: Jiasheng Jiang <jiasheng@iscas.ac.cn>, ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] mmc: sdhci-of-esdhc: Check for error num after setting mask
Date: Wed, 12 Jan 2022 11:10:18 +0200 [thread overview]
Message-ID: <87a5b5d2-d980-bbac-913b-0d9d4bd521a2@intel.com> (raw)
In-Reply-To: <20220112083156.1124782-1-jiasheng@iscas.ac.cn>
On 12/01/2022 10:31, Jiasheng Jiang wrote:
> Because of the possible failure of the dma_supported(), the
> dma_set_mask_and_coherent() may return error num.
> Therefore, it should be better to check it and return the error if
> fails.
> And since the sdhci_setup_host() has already checked the return value of
> the enable_dma, we need not check it in sdhci_resume_host() again.
>
> Fixes: 5552d7ad596c ("mmc: sdhci-of-esdhc: set proper dma mask for ls104x chips")
> Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
> Changelog
>
> v1 -> v2
>
> * Change 1. Remove the change of esdhc_of_resume and refine the commit
> * message.
> ---
> drivers/mmc/host/sdhci-of-esdhc.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
> index a593b1fbd69e..0f3658b36513 100644
> --- a/drivers/mmc/host/sdhci-of-esdhc.c
> +++ b/drivers/mmc/host/sdhci-of-esdhc.c
> @@ -524,12 +524,16 @@ static void esdhc_of_adma_workaround(struct sdhci_host *host, u32 intmask)
>
> static int esdhc_of_enable_dma(struct sdhci_host *host)
> {
> + int ret;
> u32 value;
> struct device *dev = mmc_dev(host->mmc);
>
> if (of_device_is_compatible(dev->of_node, "fsl,ls1043a-esdhc") ||
> - of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc"))
> - dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
> + of_device_is_compatible(dev->of_node, "fsl,ls1046a-esdhc")) {
> + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
> + if (ret)
> + return ret;
> + }
>
> value = sdhci_readl(host, ESDHC_DMA_SYSCTL);
>
>
next prev parent reply other threads:[~2022-01-12 9:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-12 8:31 [PATCH v2] mmc: sdhci-of-esdhc: Check for error num after setting mask Jiasheng Jiang
2022-01-12 9:10 ` Adrian Hunter [this message]
2022-01-21 14:31 ` Ulf Hansson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87a5b5d2-d980-bbac-913b-0d9d4bd521a2@intel.com \
--to=adrian.hunter@intel.com \
--cc=jiasheng@iscas.ac.cn \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).