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From: Jarkko Nikula <jarkko.nikula-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Mika Westerberg
	<mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Aaron Lu <aaron.lu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Daniel Mack <daniel-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>,
	Haojian Zhuang
	<haojian.zhuang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Robert Jarzmik <robert.jarzmik-GANU6spQydw@public.gmane.org>,
	linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] spi: pxa2xx: Remove redundant call to lpss_ssp_setup() in probe
Date: Fri, 20 Nov 2015 14:14:41 +0200	[thread overview]
Message-ID: <564F0EB1.8020306@linux.intel.com> (raw)
In-Reply-To: <1448020521-94914-1-git-send-email-mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>

On 11/20/2015 01:55 PM, Mika Westerberg wrote:
> Commit 8b136baa5892 ("spi: pxa2xx: Detect number of enabled Intel LPSS SPI
> chip select signals") added a block where lpss_ssp_setup() gets called
> again for Intel LPSS SPI host controllers before checking number of chip
> selects from the capabilities register.
>
> There is no point in calling the function twice in probe so remove the
> first call.
>
> Reported-by: Aaron Lu <aaron.lu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Mika Westerberg <mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> ---
>   drivers/spi/spi-pxa2xx.c | 3 ---
>   1 file changed, 3 deletions(-)
>
> diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
> index b25dc71b0ea9..ab9914ad8365 100644
> --- a/drivers/spi/spi-pxa2xx.c
> +++ b/drivers/spi/spi-pxa2xx.c
> @@ -1567,9 +1567,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
>   	if (!is_quark_x1000_ssp(drv_data))
>   		pxa2xx_spi_write(drv_data, SSPSP, 0);
>
> -	if (is_lpss_ssp(drv_data))
> -		lpss_ssp_setup(drv_data);
> -
>   	if (is_lpss_ssp(drv_data)) {
>   		lpss_ssp_setup(drv_data);
>   		config = lpss_get_config(drv_data);

Right, obvious, I just ponder why I was blind to see this myself when I 
split the original patch.

Acked-by: Jarkko Nikula <jarkko.nikula-FVTvWyuFUl3QT0dZR+AlfA@public.gmane.org>
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  parent reply	other threads:[~2015-11-20 12:14 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-20 11:55 [PATCH] spi: pxa2xx: Remove redundant call to lpss_ssp_setup() in probe Mika Westerberg
     [not found] ` <1448020521-94914-1-git-send-email-mika.westerberg-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-11-20 12:14   ` Jarkko Nikula [this message]
     [not found]     ` <564F0EB1.8020306-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2015-11-20 13:52       ` Jarkko Nikula
2015-11-20 18:20   ` Applied "spi: pxa2xx: Remove redundant call to lpss_ssp_setup() in probe" to the spi tree Mark Brown

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