linux-kernel - Re: [PATCH v4] phy: samsung: Use readl_poll

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Date:   Mon, 20 Jul 2020 09:50:13 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Anand Moon <linux.amoon@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>, Kukjin Kim <kgene@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH v4] phy: samsung: Use readl_poll_timeout function

On Mon, Jul 13, 2020 at 07:42:43AM +0000, Anand Moon wrote:
> Instead of a busy waiting while loop using udelay
> use readl_poll_timeout function to check the condition
> is met or timeout occurs in crport_handshake function.
> readl_poll_timeout is called in non atomic context so
> it safe to sleep until the condition is met.
> 
> Fixes: d8c80bb3b55b ("phy: exynos5-usbdrd: Calibrate LOS levels for exynos5420/5800")

There is no bug in original code so Fixes tag is not appropriate. Remove
it please.

Best regards,
Krzysztof

> Signed-off-by: Anand Moon <linux.amoon@...il.com>
> ---
> Changes v4:
> Rebased on to of patch [0] https://patchwork.kernel.org/patch/11651673/
> --Fix the commit message.
> --Fix the error timeout condition for -ETIMEDOUT
> ---
> Changes v3:
> --Fix the commit message.
> --Drop the variable, used the value directly.
> Changes v2:
> --used the default timeout values.
> --Added missing Fixed tags.
> ---
>  drivers/phy/samsung/phy-exynos5-usbdrd.c | 39 ++++++++----------------
>  1 file changed, 12 insertions(+), 27 deletions(-)
>