linux-kernel - [PATCH v8 0/4] clk: meson: add a sub EMMC clock controller support

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Message-ID: <1545063850-21504-1-git-send-email-jianxin.pan@amlogic.com>
Date:   Tue, 18 Dec 2018 00:24:06 +0800
From:   Jianxin Pan <jianxin.pan@...ogic.com>
To:     Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>
CC:     Jianxin Pan <jianxin.pan@...ogic.com>,
        Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Boris Brezillon <boris.brezillon@...tlin.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Yixun Lan <yixun.lan@...ogic.com>,
        Liang Yang <liang.yang@...ogic.com>,
        Jian Hu <jian.hu@...ogic.com>,
        Qiufang Dai <qiufang.dai@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        <linux-clk@...r.kernel.org>, <linux-amlogic@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: [PATCH v8 0/4] clk: meson: add a sub EMMC clock controller support

This driver will add a MMC clock controller driver support.
The original idea about adding a clock controller is during the
discussion in the NAND driver mainline effort[1].

This driver is tested in the S400 board (AXG platform) with NAND driver.

Changes since v7 [8]
 - move meson_clk_get_phase_delay_data() from header to driver
 - CONFIG sclk-div with COMMON_CLK_AMLOGIC instead of COMMON_CLK_AMLOGIC_AUDIO
 - remove onecell date and ID for internal MUX clk
 - use helper for functions for ONE_BASED in sclk-div
 - add ONE_BASED support for duty cycle

Changes since v6 [7]:
 - add one based support for sclk divier
 - alloc sclk in probe for multiple instance
 - fix coding styles

Changes since v5 [6]:
 - remove divider ops with .init and use sclk_div instead
 - drop CLK_DIVIDER_ROUND_CLOSEST in mux and div
 - drop the useless type cast 

Changes since v4 [5]:
 - use struct parm in phase delay driver
 - remove 0 delay releted part in phase delay driver
 - don't rebuild the parent name once again
 - add divider ops with .init

Changes since v3 [4]:
 - separate clk-phase-delay driver
 - replace clk_get_rate() with clk_hw_get_rate()
 - collect Rob's R-Y
 - drop 'meson-' prefix from compatible string

 Changes since v2 [3]:
 - squash dt-binding clock-id patch
 - update license
 - fix alignment
 - construct a clk register helper() function

Changes since v1 [2]:
 - implement phase clock
 - update compatible name
 - adjust file name
 - divider probe() into small functions, and re-use them

[1] https://lkml.kernel.org/r/20180628090034.0637a062@xps13
[2] https://lkml.kernel.org/r/20180703145716.31860-1-yixun.lan@amlogic.com
[3] https://lkml.kernel.org/r/20180710163658.6175-1-yixun.lan@amlogic.com
[4] https://lkml.kernel.org/r/20180712211244.11428-1-yixun.lan@amlogic.com
[5] https://lkml.kernel.org/r/20180809070724.11935-4-yixun.lan@amlogic.com
[6] https://lkml.kernel.org/r/1539839245-13793-1-git-send-email-jianxin.pan@amlogic.com
[7] https://lkml.kernel.org/r/1541089855-19356-1-git-send-email-jianxin.pan@amlogic.com
[8] https://lkml.kernel.org/r/1544457877-51301-1-git-send-email-jianxin.pan@amlogic.com

Jianxin Pan (1):
  clk: meson: add one based divider support for sclk divider

Yixun Lan (3):
  clk: meson: add emmc sub clock phase delay driver
  clk: meson: add DT documentation for emmc clock controller
  clk: meson: add sub MMC clock controller driver

 .../devicetree/bindings/clock/amlogic,mmc-clkc.txt |  39 +++
 drivers/clk/meson/Kconfig                          |   9 +
 drivers/clk/meson/Makefile                         |   5 +-
 drivers/clk/meson/clk-phase-delay.c                |  70 +++++
 drivers/clk/meson/clkc-audio.h                     |   8 -
 drivers/clk/meson/clkc.h                           |  17 +-
 drivers/clk/meson/mmc-clkc.c                       | 304 +++++++++++++++++++++
 drivers/clk/meson/sclk-div.c                       |  59 ++--
 include/dt-bindings/clock/amlogic,mmc-clkc.h       |  17 ++
 9 files changed, 498 insertions(+), 30 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt
 create mode 100644 drivers/clk/meson/clk-phase-delay.c
 create mode 100644 drivers/clk/meson/mmc-clkc.c
 create mode 100644 include/dt-bindings/clock/amlogic,mmc-clkc.h

-- 
1.9.1