From: Jianqun <xjq@rock-chips.com>
To: "Heiko Stübner" <heiko@sntech.de>
Cc: mturquette@linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kever.yang@rock-chips.com,
huangtao@rock-chips.com, zyw@rock-chips.com, yzq@rock-chips.com,
zhenfu.fang@rock-chips.com, cf@rock-chips.com,
kfx@rock-chips.com
Subject: Re: [PATCH] Rockchip: RK3288: CRU: swap value of bit for CORE clock pll source selection
Date: Fri, 05 Sep 2014 15:38:30 +0800 [thread overview]
Message-ID: <54096876.9070604@rock-chips.com> (raw)
In-Reply-To: <1726751.YXExQQBGOk@diego>
OK thanks
在 09/05/2014 03:32 PM, Heiko Stübner 写道:
> Hi Jianqun,
>
> Am Freitag, 5. September 2014, 13:49:26 schrieb jianqun:
>> From: xujianqun <xjq@rock-chips.com>
>>
>> For RK3288, core clock pll source select APLL when bit value is 1, select
>> GPLL when bit value is 0;
>>
>> CRU_CLKSEL0_CON [15]
>> - core_clk_pll_sel
>> - CORE clock pll source selection
>> -- 1'b1: select ARM PLL
>> -- 1'b0: select GENERAL PLL
>
> your patch changes code, I haven't even submitted yet ... so I guess there is
> no need to spam maintainers and mailinglists with changes like these :-) .
>
>
>>
>> BUG=none
>> TEST= "cat /sys/kernel/debug/clk/clk_summary |grep apll" check parent of
>> core clock
>>
>> Change-Id: I44a528af256da1fad573b4ccf9d0a20ad4cf6d68
>
> and to remember for the future, the ChromeOS, BUG, TEST and Change-Id
> shouldn't appear in commits sent upstream.
>
>
> Heiko
>
>
>> Signed-off-by: xujianqun <xjq@rock-chips.com>
>> ---
>> drivers/clk/rockchip/clk-cpu.c | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c
>> index c5b14e9..1725ac7 100644
>> --- a/drivers/clk/rockchip/clk-cpu.c
>> +++ b/drivers/clk/rockchip/clk-cpu.c
>> @@ -136,7 +136,7 @@ static int rockchip_cpuclk_pre_rate_change(struct
>> rockchip_cpuclk *cpuclk, }
>>
>> /* select alternate parent */
>> - writel(HIWORD_UPDATE(1, 1, reg_data->mux_core_shift),
>> + writel(HIWORD_UPDATE(0, 1, reg_data->mux_core_shift),
>> cpuclk->reg_base + reg_data->core_reg);
>>
>> /* alternate parent is active now. set the dividers */
>> @@ -163,7 +163,7 @@ static int rockchip_cpuclk_post_rate_change(struct
>> rockchip_cpuclk *cpuclk, spin_lock(cpuclk->lock);
>>
>> /* post-rate change event, re-mux back to primary parent */
>> - writel(HIWORD_UPDATE(0, 1, reg_data->mux_core_shift),
>> + writel(HIWORD_UPDATE(1, 1, reg_data->mux_core_shift),
>> cpuclk->reg_base + RK2928_CLKSEL_CON(0));
>>
>> /* remove any core dividers */
>
>
>
>
prev parent reply other threads:[~2014-09-05 7:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-05 5:49 [PATCH] Rockchip: RK3288: CRU: swap value of bit for CORE clock pll source selection jianqun
2014-09-05 7:32 ` Heiko Stübner
2014-09-05 7:38 ` Jianqun [this message]
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