linux-kernel - RE: [PATCH v7 1/2] clk: starfive: jh7110-sys: Add notifier for PLL0 clock

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Message-ID: <78b5aa6efc5b3ca4151f503367a9bd3a.sboyd@kernel.org>
Date: Thu, 29 Aug 2024 12:24:25 -0700
From: Stephen Boyd <sboyd@...nel.org>
To: Conor Dooley <conor@...nel.org>, Emil Renner Berthing <emil.renner.berthing@...onical.com>, Michael Turquette <mturquette@...libre.com>, Xingyu Wu <xingyu.wu@...rfivetech.com>
Cc: Hal Feng <hal.feng@...rfivetech.com>, linux-kernel@...r.kernel.org <linux-kernel@...r.kernel.org>, linux-clk@...r.kernel.org <linux-clk@...r.kernel.org>
Subject: RE: [PATCH v7 1/2] clk: starfive: jh7110-sys: Add notifier for PLL0 clock

Quoting Xingyu Wu (2024-08-28 22:42:43)
> On 29/08/2024 04:19, Stephen Boyd wrote:
> > 
> > Quoting Xingyu Wu (2024-08-26 01:04:29)
> > > Add notifier function for PLL0 clock. In the function, the cpu_root
> > > clock should be operated by saving its current parent and setting a
> > > new safe parent (osc clock) before setting the PLL0 clock rate. After
> > > setting PLL0 rate, it should be switched back to the original parent clock.
> > >
> > > Fixes: e2c510d6d630 ("riscv: dts: starfive: Add cpu scaling for JH7110
> > > SoC")
> > > Reviewed-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> > > Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>
> > > ---
> > 
> > What is the urgency of this patch? I can't tell from the commit text, so I'm
> > assuming it can bake in clk-next for a few weeks.
> 
> Hi Stephen,
> 
> This is urgent. Without this patch, Cpufreq does not work and the CPU can't work in the best frequency of 1.5GHz. This patch can improve the performance of the visionfive-2 board.
> 

Ok. I'll apply it to clk-fixes then.