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From: jbrunet@baylibre.com (Jerome Brunet)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH 1/3] clk: meson: clk-pll: add enable bit
Date: Sat, 21 Jul 2018 22:26:59 +0200	[thread overview]
Message-ID: <1532204819.26720.68.camel@baylibre.com> (raw)
In-Reply-To: <CAFBinCCDGKu5U1xY1WG2BHF28YEWd1HbKdDeTCc9fEV_YjSNew@mail.gmail.com>

On Sat, 2018-07-21 at 21:48 +0200, Martin Blumenstingl wrote:
> > @@ -250,11 +264,15 @@ static const struct reg_sequence axg_hifi_init_regs[] = {
> >          { .reg = HHI_HIFI_PLL_CNTL3,    .def = 0x0a6a3a88 },
> >          { .reg = HHI_HIFI_PLL_CNTL4,    .def = 0xc000004d },
> >          { .reg = HHI_HIFI_PLL_CNTL5,    .def = 0x00058000 },
> > -       { .reg = HHI_HIFI_PLL_CNTL,     .def = 0x40010250 },
> 
> is this change on purpose? this line set en, m, n, l and od before
> maybe you can document it in the commit message

Yes the change is on purpose, but as you pointed out it is worth a comment

Actually, when taking od out of the pll driver, I remembered this 'initial
setting' and it kinda bothered me

If the od divider registers after the DCO, the value could have changed with it,
which is why I wanted to remove the write on this register

As you pointed out, in this register, we find m, n, od ... and enable. In a way,
removing this register setting was the reason why I wanted to add the enable bit
to begin with :)

  reply	other threads:[~2018-07-21 20:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-17  9:56 [PATCH 0/3] clk: meson: clk-pll driver update Jerome Brunet
2018-07-17  9:56 ` [PATCH 1/3] clk: meson: clk-pll: add enable bit Jerome Brunet
2018-07-19  8:33   ` Neil Armstrong
2018-07-21 19:48   ` Martin Blumenstingl
2018-07-21 20:26     ` Jerome Brunet [this message]
2018-07-17  9:56 ` [PATCH 2/3] clk: meson: clk-pll: remove od parameters Jerome Brunet
2018-07-19  8:42   ` Neil Armstrong
2018-07-19  8:45     ` Jerome Brunet
2018-07-21 20:01   ` Martin Blumenstingl
2018-07-21 20:42     ` Jerome Brunet
2018-07-21 21:37       ` Martin Blumenstingl
2018-07-17  9:56 ` [PATCH 3/3] clk: meson: clk-pll: drop hard-coded rates from pll tables Jerome Brunet
2018-07-19  8:44   ` Neil Armstrong
2018-07-19  8:59     ` Jerome Brunet
2018-07-21 20:16     ` Martin Blumenstingl
2018-07-21 20:46       ` Jerome Brunet
2018-07-21 21:34         ` Martin Blumenstingl
2018-07-26  8:48           ` jbrunet at baylibre.com
2018-07-21 20:17 ` [PATCH 0/3] clk: meson: clk-pll driver update Martin Blumenstingl
2018-07-21 20:48   ` Jerome Brunet

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