From: Stephen Boyd <sboyd@codeaurora.org>
To: Govindraj Raja <Govindraj.Raja@imgtec.com>
Cc: linux-mips@linux-mips.org, linux-clk@vger.kernel.org,
Michael Turquette <mturquette@baylibre.com>,
Zdenko Pulitika <zdenko.pulitika@imgtec.com>,
Kevin Cernekee <cernekee@chromium.org>,
Ralf Baechle <ralf@linux-mips.org>,
Andrew Bresticker <abrestic@chromium.org>,
James Hartley <James.Hartley@imgtec.com>,
Damien Horsley <Damien.Horsley@imgtec.com>,
James Hogan <James.Hogan@imgtec.com>,
Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
stable@vger.kernel.org
Subject: Re: [PATCH v6 2/4] clk: pistachio: Fix override of clk-pll settings from boot loader
Date: Wed, 26 Aug 2015 11:36:35 -0700 [thread overview]
Message-ID: <20150826183635.GP19120@codeaurora.org> (raw)
In-Reply-To: <1440605500-13274-3-git-send-email-Govindraj.Raja@imgtec.com>
On 08/26, Govindraj Raja wrote:
> From: Zdenko Pulitika <zdenko.pulitika@imgtec.com>
>
> PLL enable callbacks are overriding PLL mode (int/frac) and
> Noise reduction (on/off) settings set by the boot loader which
> results in the incorrect clock rate.
>
> PLL mode and noise reduction are defined by the DSMPD and DACPD bits
> of the PLL control register. PLL .enable() callbacks enable PLL
> by deasserting all power-down bits of the PLL control register,
> including DSMPD and DACPD bits, which is not necessary since
> these bits don't actually enable/disable PLL.
>
> This commit fixes the problem by removing DSMPD and DACPD bits
> from the "PLL enable" mask.
>
> Fixes: 43049b0c83f17("CLK: Pistachio: Add PLL driver")
> Cc: <stable@vger.kernel.org> # 4.1
> Reviewed-by: Andrew Bresitcker <abrestic@chromium.org>
> Signed-off-by: Zdenko Pulitika <zdenko.pulitika@imgtec.com>
> Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.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:[~2015-08-26 18:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-26 16:11 [PATCH v6 0/4] clk: pistachio: Fixes for pll calculations Govindraj Raja
2015-08-26 16:11 ` Govindraj Raja
2015-08-26 16:11 ` [PATCH v6 1/4] clk: pistachio: Fix 32bit integer overflows Govindraj Raja
2015-08-26 16:11 ` Govindraj Raja
2015-08-26 18:36 ` Stephen Boyd
2015-08-26 16:11 ` [PATCH v6 2/4] clk: pistachio: Fix override of clk-pll settings from boot loader Govindraj Raja
2015-08-26 16:11 ` Govindraj Raja
2015-08-26 18:36 ` Stephen Boyd [this message]
2015-08-26 16:11 ` [PATCH v6 3/4] clk: pistachio: Fix PLL rate calculation in integer mode Govindraj Raja
2015-08-26 16:11 ` Govindraj Raja
2015-08-26 18:36 ` Stephen Boyd
2015-08-26 16:11 ` [PATCH v6 4/4] clk: pistachio: correct critical clock list Govindraj Raja
2015-08-26 16:11 ` Govindraj Raja
2015-08-26 18:36 ` Stephen Boyd
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