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From: Heiko Stuebner <heiko@sntech.de>
To: Elaine Zhang <zhangqing@rock-chips.com>
Cc: mturquette@baylibre.com, sboyd@codeaurora.org,
	linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-rockchip@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org, huangtao@rock-chips.com,
	cl@rock-chips.com, xxx@rock-chips.com, xf@rock-chips.com
Subject: Re: [PATCH 2/2] clk: rockchip: add special approximation to fix up fractional clk's jitter
Date: Tue, 08 Aug 2017 17:58:40 +0200	[thread overview]
Message-ID: <5870913.YR5OS93x3L@phil> (raw)
In-Reply-To: <3942563.TMEkxTS0ar@phil>

Am Dienstag, 1. August 2017, 18:22:24 CEST schrieb Heiko Stuebner:
> From: Elaine Zhang <zhangqing@rock-chips.com>
> 
> From Rockchips fractional divider description:
>   3.1.9  Fractional divider usage
>   To get specific frequency, clocks of I2S, SPDIF, UARTcan be generated by
>   fractional divider. Generally you must set that denominator is 20 times
>   larger than numerator to generate precise clock frequency. So the
>   fractional divider applies only to generate low frequency clock like
>   I2S, UART.
> 
> Therefore add a special approximation function that handles this
> special requirement.
> 
> Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>

applied for 4.14


Heiko

WARNING: multiple messages have this Message-ID (diff)
From: heiko@sntech.de (Heiko Stuebner)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] clk: rockchip: add special approximation to fix up fractional clk's jitter
Date: Tue, 08 Aug 2017 17:58:40 +0200	[thread overview]
Message-ID: <5870913.YR5OS93x3L@phil> (raw)
In-Reply-To: <3942563.TMEkxTS0ar@phil>

Am Dienstag, 1. August 2017, 18:22:24 CEST schrieb Heiko Stuebner:
> From: Elaine Zhang <zhangqing@rock-chips.com>
> 
> From Rockchips fractional divider description:
>   3.1.9  Fractional divider usage
>   To get specific frequency, clocks of I2S, SPDIF, UARTcan be generated by
>   fractional divider. Generally you must set that denominator is 20 times
>   larger than numerator to generate precise clock frequency. So the
>   fractional divider applies only to generate low frequency clock like
>   I2S, UART.
> 
> Therefore add a special approximation function that handles this
> special requirement.
> 
> Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>

applied for 4.14


Heiko

  parent reply	other threads:[~2017-08-08 15:58 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-21  8:03 [PATCH v3] clk: fractional-divider: fix up the fractional clk's jitter Elaine Zhang
2017-07-21  8:03 ` Elaine Zhang
2017-08-01 16:19 ` Heiko Stuebner
2017-08-01 16:19   ` Heiko Stuebner
2017-08-01 16:19   ` Heiko Stuebner
2017-08-01 16:21   ` [PATCH 1/2] clk: fractional-divider: allow overriding of approximation Heiko Stuebner
2017-08-01 16:21     ` Heiko Stuebner
2017-08-01 16:21     ` Heiko Stuebner
2017-08-02  3:43     ` Elaine Zhang
2017-08-02  3:43       ` Elaine Zhang
2017-08-07 23:02     ` Stephen Boyd
2017-08-07 23:02       ` Stephen Boyd
2017-08-08 15:58     ` Heiko Stuebner
2017-08-08 15:58       ` Heiko Stuebner
2017-08-01 16:22   ` [PATCH 2/2] clk: rockchip: add special approximation to fix up fractional clk's jitter Heiko Stuebner
2017-08-01 16:22     ` Heiko Stuebner
2017-08-01 16:22     ` Heiko Stuebner
2017-08-02  3:43     ` Elaine Zhang
2017-08-02  3:43       ` Elaine Zhang
2017-08-08 15:58     ` Heiko Stuebner [this message]
2017-08-08 15:58       ` Heiko Stuebner

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