From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 5/7] clk: at91: clk-generated: make gclk determine audio_pll rate
Date: Fri, 1 Sep 2017 15:55:20 -0700 [thread overview]
Message-ID: <20170901225520.GG21656@codeaurora.org> (raw)
In-Reply-To: <600ed1e3623477c8083c6c4fa16299e33f7b76a9.1502346448.git-series.quentin.schulz@free-electrons.com>
On 08/10, Quentin Schulz wrote:
> This allows gclk to determine audio_pll rate and set the parent rate
> accordingly.
>
> However, there are multiple children clocks that could technically
> change the rate of audio_pll (via gck). With the rate locking, the first
> consumer to enable the clock will be the one definitely setting the rate
> of the clock.
>
> Since audio IPs are most likely to request the same rate, we enforce
> that the only clks able to modify gck rate are those of audio IPs.
>
> To remain consistent, we deny other clocks to be children of audio_pll.
>
> Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
> ---
Applied to clk-next
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2017-09-01 22:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-10 6:34 [PATCH v5 0/7] add support for Sama5d2 audio PLLs and enable ClassD Quentin Schulz
2017-08-10 6:34 ` [PATCH v5 1/7] clk: at91: clk-generated: remove useless divisor loop Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd
2017-08-10 6:34 ` [PATCH v5 2/7] dt-bindings: clk: at91: add audio plls to the compatible list Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd
2017-08-10 6:34 ` [PATCH v5 3/7] clk: at91: add audio pll clock drivers Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd
2017-08-10 6:34 ` [PATCH v5 4/7] clk: at91: clk-generated: create function to find best_diff Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd
2017-08-10 6:34 ` [PATCH v5 5/7] clk: at91: clk-generated: make gclk determine audio_pll rate Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd [this message]
2017-08-10 6:34 ` [PATCH v5 6/7] ASoC: atmel-classd: remove aclk clock from DT binding Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd
2017-08-10 6:34 ` [PATCH v5 7/7] ASoC: atmel-classd: remove aclk clock Quentin Schulz
2017-09-01 22:55 ` Stephen Boyd
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