Thread (5 messages) 5 messages, 3 authors, 2018-09-10

Re: [PATCH v4] clk: renesas: cpg-mssr: Add R7S9210 support

From: Rob Herring <robh@kernel.org>
Date: 2018-09-10 18:24:23
Also in: linux-clk, linux-renesas-soc

On Fri, Sep 07, 2018 at 11:58:49AM -0500, Chris Brandt wrote:
Add support for the R7S9210 (RZ/A2) Clock Pulse Generator and Module
Standby.

The Module Standby HW in the RZ/A series is very close to R-Car HW, except
for how the registers are laid out.
The MSTP registers are only 8-bits wide, there is no status registers
(MSTPSR), and the register offsets are a little different. Since the RZ/A
hardware manuals refer to these registers as the Standby Control Registers,
we'll use that name to distinguish the RZ/A type from the R-Car type.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
v4:
 * Preserved sort order of SoC listings
 * Removed R7S9210_CLK_PLL from dt-binding since it's an internal clock
 * ratio_tab is now a struct making it look a little nicer
 * Removed CLK_I,...CLK_P0 because they are already defined in dt-bindings
 * Sorted mod_clks by ascending MSTP number
 * Removed cast from clk_get_rate(parent)
 * Corrected register index of stbcr[1]
 * Don't use MOD_CLK_PACK_10 for non priv->stbyctrl devices (bug fix)
v3:
 * Use actual register bit names and numbers from manual for both DT and
   tables ("36" instead of "306")
 * Do not register reset controller for stbyctrl (RZ/A) SoCs
 * Changed SPDX from "GPL-2.0+" to "GPL-2.0"
v2:
 * num_hw_mod_clks was wrong
 * added ethernet clocks
---
 .../devicetree/bindings/clock/renesas,cpg-mssr.txt |   5 +-
 drivers/clk/renesas/Kconfig                        |   5 +
 drivers/clk/renesas/Makefile                       |   1 +
 drivers/clk/renesas/r7s9210-cpg-mssr.c             | 189 +++++++++++++++++++++
 drivers/clk/renesas/renesas-cpg-mssr.c             |  81 +++++++--
 drivers/clk/renesas/renesas-cpg-mssr.h             |  13 ++
 include/dt-bindings/clock/r7s9210-cpg-mssr.h       |  20 +++
For DT bits,

Acked-by: Rob Herring <robh@kernel.org>
 7 files changed, 300 insertions(+), 14 deletions(-)
 create mode 100644 drivers/clk/renesas/r7s9210-cpg-mssr.c
 create mode 100644 include/dt-bindings/clock/r7s9210-cpg-mssr.h
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