linux-kernel - Re: [PATCH] mmc: sdhci-of-arasan: Get quirks from device tree

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 for Android: free password hash cracker in your pocket

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

Date:	Mon, 27 Jul 2015 17:19:27 +0200
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Shawn Lin <shawn.lin@...k-chips.com>,
	Ulf Hansson <ulf.hansson@...aro.org>
CC:	Sören Brinkmann <soren.brinkmann@...inx.com>,
	Michal Simek <michal.simek@...inx.com>,
	linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mmc: sdhci-of-arasan: Get quirks from device tree

On 07/27/2015 10:04 AM, Shawn Lin wrote:
> This patch adds the interface to get quirks from dts, and
> there is no need to assign different quirks by condition statement
> of arasan IP version.
>
> Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>
> ---
>
>   drivers/mmc/host/sdhci-of-arasan.c | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
> index ef5a7d2..db07788 100644
> --- a/drivers/mmc/host/sdhci-of-arasan.c
> +++ b/drivers/mmc/host/sdhci-of-arasan.c
> @@ -132,6 +132,7 @@ static SIMPLE_DEV_PM_OPS(sdhci_arasan_dev_pm_ops, sdhci_arasan_suspend,
>   static int sdhci_arasan_probe(struct platform_device *pdev)
>   {
>   	int ret;
> +	u32 quirktab[2];
>   	struct clk *clk_xin;
>   	struct sdhci_host *host;
>   	struct sdhci_pltfm_host *pltfm_host;
> @@ -172,6 +173,12 @@ static int sdhci_arasan_probe(struct platform_device *pdev)
>   		goto clk_disable_all;
>   	}
>
> +	if (of_property_read_u32_array(pdev->dev.of_node,
> +				       "arasan,quirks", &quirktab[0], 2)) {
> +		host->quirks |= quirktab[0];
> +		host->quirks2 |= quirktab[1];
> +	}

The quirks are part of the Linux internal API, making them part of the 
public ABI is not necessarily the best idea. It means they become fixed, you 
can't remove any quirk types, can't change any quirk type, nor can add new 
quirk types.

- Lars

--
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/