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From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: jbrunet@baylibre.com, linux-amlogic@lists.infradead.org,
	linux-clk@vger.kernel.org
Cc: narmstrong@baylibre.com, sboyd@kernel.org,
	mturquette@baylibre.com, linux-kernel@vger.kernel.org,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] clk: meson8b: updates for video clocks / resets
Date: Tue, 14 Apr 2020 22:00:13 +0200	[thread overview]
Message-ID: <20200414200017.226136-1-martin.blumenstingl@googlemail.com> (raw)

This is the first batch of fixes and updates for the Meson8/8b/8m2
clock controller driver.

The first patch fixes the video clock hierarchy. Special thanks to
Neil for providing a lot of details about the video clock tree!

The second and third came up while testing video output on my EC-100
(Endless Mini). This board is special because u-boot does not enable
the video outputs like most other u-boot versions do. However, this
is very useful for development because it shows (the hard way ;))
where the existing code is buggy.

The last patch is a small improvement for the VPU clock so we
utilize the glitch-free mux (on SoCs which support it) and avoid
problems by changing the "live" clock tree at runtime (with the mali
clock this resulted in system hangs/freezes).

In my opinion all of these patches - including the fixes - can go to
"next" because the relevant clock trees are still read-only.


Martin Blumenstingl (4):
  clk: meson: meson8b: Fix the first parent of vid_pll_in_sel
  clk: meson: meson8b: Fix the polarity of the RESET_N lines
  clk: meson: meson8b: Fix the vclk_div{1,2,4,6,12}_en gate bits
  clk: meson: meson8b: Make the CCF use the glitch-free VPU mux

 drivers/clk/meson/meson8b.c | 107 +++++++++++++++++++++++++-----------
 1 file changed, 75 insertions(+), 32 deletions(-)

-- 
2.26.0


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             reply	other threads:[~2020-04-14 20:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-14 20:00 Martin Blumenstingl [this message]
2020-04-14 20:00 ` [PATCH 1/4] clk: meson: meson8b: Fix the first parent of vid_pll_in_sel Martin Blumenstingl
2020-04-16 10:32   ` Jerome Brunet
2020-04-16 17:49     ` Martin Blumenstingl
2020-04-14 20:00 ` [PATCH 2/4] clk: meson: meson8b: Fix the polarity of the RESET_N lines Martin Blumenstingl
2020-04-16 10:38   ` Jerome Brunet
2020-04-16 18:12     ` Martin Blumenstingl
2020-04-17  7:43       ` Jerome Brunet
2020-04-14 20:00 ` [PATCH 3/4] clk: meson: meson8b: Fix the vclk_div{1, 2, 4, 6, 12}_en gate bits Martin Blumenstingl
2020-04-14 20:00 ` [PATCH 4/4] clk: meson: meson8b: Make the CCF use the glitch-free VPU mux Martin Blumenstingl

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