linux-kernel - Re: [PATCH v1] phy: qcom-ufs: Use iopoll.h readl_poll

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Date:   Wed, 26 Dec 2018 20:03:41 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Marc Gonzalez <marc.w.gonzalez@...e.fr>
Cc:     Kishon Vijay Abraham <kishon@...com>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Yaniv Gardi <ygardi@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Matt Wagantall <mattw@...eaurora.org>,
        Mitchel Humpherys <mitchelh@...eaurora.org>,
        Will Deacon <will.deacon@....com>,
        Arnd Bergmann <arnd@...db.de>,
        MSM <linux-arm-msm@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] phy: qcom-ufs: Use iopoll.h readl_poll_timeout macro

On Fri 21 Dec 02:13 PST 2018, Marc Gonzalez wrote:

> The private copy of readl_poll_timeout is no longer needed.
> Use the implementation in iopoll.h instead.
> 
> Signed-off-by: Marc Gonzalez <marc.w.gonzalez@...e.fr>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> ---
>  drivers/phy/qualcomm/phy-qcom-ufs-i.h | 19 +------------------
>  1 file changed, 1 insertion(+), 18 deletions(-)
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-i.h b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> index 681644e43248..f798fb64de94 100644
> --- a/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> +++ b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
> @@ -23,24 +23,7 @@
>  #include <linux/platform_device.h>
>  #include <linux/io.h>
>  #include <linux/delay.h>
> -
> -#define readl_poll_timeout(addr, val, cond, sleep_us, timeout_us) \
> -({ \
> -	ktime_t timeout = ktime_add_us(ktime_get(), timeout_us); \
> -	might_sleep_if(timeout_us); \
> -	for (;;) { \
> -		(val) = readl(addr); \
> -		if (cond) \
> -			break; \
> -		if (timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
> -			(val) = readl(addr); \
> -			break; \
> -		} \
> -		if (sleep_us) \
> -			usleep_range(DIV_ROUND_UP(sleep_us, 4), sleep_us); \
> -	} \
> -	(cond) ? 0 : -ETIMEDOUT; \
> -})
> +#include <linux/iopoll.h>
>  
>  #define UFS_QCOM_PHY_CAL_ENTRY(reg, val)	\
>  	{				\
> -- 
> 2.17.1