linux-kernel - [PATCH v2 0/2] clk: meson: g12a: Add CPU Clock support

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Date:   Mon,  4 Mar 2019 14:11:27 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     jbrunet@...libre.com
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-clk@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/2] clk: meson: g12a: Add CPU Clock support

This patchset adds support for the clock tree feeding the 4xCortex A53
cpu cluster.

This patchet does not handle clock changing, this will be added in a
secondary patchset.

The CPU clock can either use the SYS_PLL for > 1GHz frequencies or
use a couple of div+mux from 1GHz/667MHz/24MHz source with 2 non-glitch
muxes.

The CPU clock must be switched to a safe clock while changing the clocks
before the non-glitch muxes. Proper support will be added later.

In this patchset, clocks are set read-only.

Changes since v1:
- moved to clk_regmap_gate_ro_ops for R/O gates
- added comments with datasheet field names
- moved pribate bindings changes to driver patch
- removed invalid PCIE IDs

Neil Armstrong (2):
  clk: meson-g12a: add cpu clock bindings
  clk: meson: g12a: add cpu clocks

 drivers/clk/meson/g12a.c              | 350 ++++++++++++++++++++++++++
 drivers/clk/meson/g12a.h              |  22 +-
 include/dt-bindings/clock/g12a-clkc.h |   1 +
 3 files changed, 372 insertions(+), 1 deletion(-)

-- 
2.20.1