From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: Chen-Yu Tsai <wens@csie.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@codeaurora.org>,
linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-sunxi@googlegroups.com
Subject: Re: [PATCH v2 00/10] clk: sunxi-ng: Add support for A80 CCUs
Date: Mon, 30 Jan 2017 08:42:10 +0100 [thread overview]
Message-ID: <20170130074210.6pxvenwdtynyyzyt@lukather> (raw)
In-Reply-To: <20170128122239.4480-1-wens@csie.org>
[-- Attachment #1: Type: text/plain, Size: 2782 bytes --]
Hi,
On Sat, Jan 28, 2017 at 08:22:29PM +0800, Chen-Yu Tsai wrote:
> Hi everyone,
>
> This is v2 of my A80 CCU clk patches. Changes since v1:
>
> - Use pre-divider adjusted parent rate for rounding.
>
> - Use else statement for the case where the PLL lock status bit is
> in same register.
>
> - Add a more detailed description of the main CCU and DE CCU to the
> commit messages.
>
> - Fix DE CCU compatible string in DT binding example.
>
> - Fix incorrectly squashed patch hunk.
>
> - Drop leading zeros from device tree node name in DT examples.
>
> - Expanded commit message for "ARM: dts: sun8i-a23-q8-tablet: Drop
> pinmux setting for codec PA gpio".
>
> This series adds new "sunxi-ng" style drivers for the CCUs found in the
> Allwinner A80 SoC. The A80 contains 1 main clock control unit, and some
> subsystem specific clock control units at separate addresses. These
> include the USB, display engine, and MMC.
>
> - The MMC clocks can be supported by the old clock drivers,
> hence here we do not add a new driver for it.
>
> - The old USB clock driver is intertwined with other SoCs,
> requires old style bindings with clock-output-names and
> CLK_OF_DECLARE for its parents. It is easier to switch
> to a new binding and driver.
>
> - The display engine (DE) CCU was not supported in the past.
>
> The A80 CCU also has some quirks about its design. It has
>
> - Separate registers for PLL lock status
>
> - P1, P2 dividers, which are power-of-2 and only 1 bit wide
>
> The first 3 patches fix and extend the behavior of sunxi-ng's
> mux clock type, based on the behavior of the clk subsystem's
> basic mux clock.
>
> The fourth patch adds support for checking PLL lock status
> bits in separate registers, as opposed to within the PLL's
> config register.
>
> Patches 5 through 7 add drivers for the CCU blocks.
>
> Patch 8 and 9 do some cleanup of the sunxi/allwinner dts files
> prior to switching sun9i dts to the new sunxi-ng clock bindings.
> These are independent of the clk stuff, but touch the same lines
> for sun9i. Including them should make it easier to apply and test
> patches.
>
> Patch 10 has sun9i switch over to the new clock bindings.
>
> Please take a look and let me know what you think.
This is a bit late, but I took it in anyway.
Note that I only applied the patches about the CCU. The pinctrl header
stuff is quite conflict heavy, and not really a big deal anyway.
(and I really would have liked to have it as a separate series. This
has nothing to do with the A80 CCU).
Thanks,
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 801 bytes --]
prev parent reply other threads:[~2017-01-30 7:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-28 12:22 [PATCH v2 00/10] clk: sunxi-ng: Add support for A80 CCUs Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 01/10] clk: sunxi-ng: mux: Fix determine_rate for mux clocks with pre-dividers Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 02/10] clk: sunxi-ng: mux: honor CLK_SET_RATE_NO_REPARENT flag Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 03/10] clk: sunxi-ng: mux: Get closest parent rate possible with CLK_SET_RATE_PARENT Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 04/10] clk: sunxi-ng: Support separately grouped PLL lock status register Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 05/10] clk: sunxi-ng: Add A80 CCU Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 06/10] clk: sunxi-ng: Add A80 USB CCU Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 07/10] clk: sunxi-ng: Add A80 Display Engine CCU Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 08/10] ARM: dts: sun8i-a23-q8-tablet: Drop pinmux setting for codec PA gpio Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 09/10] ARM: dts: sunxi: Remove no longer used pinctrl/sun4i-a10.h header Chen-Yu Tsai
2017-01-28 12:22 ` [PATCH v2 10/10] ARM: dts: sun9i: Switch to new clock bindings Chen-Yu Tsai
2017-01-30 7:42 ` Maxime Ripard [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170130074210.6pxvenwdtynyyzyt@lukather \
--to=maxime.ripard@free-electrons.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=mark.rutland@arm.com \
--cc=mturquette@baylibre.com \
--cc=robh+dt@kernel.org \
--cc=sboyd@codeaurora.org \
--cc=wens@csie.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).