linux-kernel - [PATCH v2 0/5] clk: imx: Register the dram_apb and dram

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Message-Id: <1606394409-12755-1-git-send-email-abel.vesa@nxp.com>
Date:   Thu, 26 Nov 2020 14:40:04 +0200
From:   Abel Vesa <abel.vesa@....com>
To:     Stephen Boyd <sboyd@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Peng Fan <peng.fan@....com>,
        Fabio Estevam <fabio.estevam@....com>,
        Anson Huang <anson.huang@....com>,
        Dong Aisheng <aisheng.dong@....com>,
        Jacky Bai <ping.bai@....com>
Cc:     NXP Linux Team <linux-imx@....com>, linux-clk@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org, Abel Vesa <abel.vesa@....com>
Subject: [PATCH v2 0/5] clk: imx: Register the dram_apb and dram_alt as read-only

On i.MX8M platforms the dram_apb and dram_alt are controlled from EL3.
So in order to keep track of the actual clock tree in kernel, we need to
actually declare the clocks but never write to any of their registes.
We do that by registering the clocks with only the ops that read but never
write the registers.

Changes since v1:
 * allow generic composite clock registration with .is_enabled gate op
   only

Abel Vesa (5):
  clk: Add clk_gate_ro_ops for read-only gate clocks
  clk: Add CLK_GET_PARENT_NOCACHE flag
  clk: composite: Allow gate ops with only .is_enabled op
  clk: imx: composite-8m: Add DRAM clock registration variant
  clk: imx8m: Use dram variant registration for dram clocks

 drivers/clk/clk-composite.c        | 19 ++++++++++---------
 drivers/clk/clk-gate.c             |  5 +++++
 drivers/clk/clk.c                  | 31 +++++++++++++++++--------------
 drivers/clk/imx/clk-composite-8m.c | 12 +++++++++++-
 drivers/clk/imx/clk-imx8mm.c       |  4 ++--
 drivers/clk/imx/clk-imx8mn.c       |  4 ++--
 drivers/clk/imx/clk-imx8mp.c       |  4 ++--
 drivers/clk/imx/clk-imx8mq.c       |  4 ++--
 drivers/clk/imx/clk.h              |  7 +++++++
 include/linux/clk-provider.h       |  2 ++
 10 files changed, 60 insertions(+), 32 deletions(-)

-- 
2.7.4