linux-kernel - [PATCH v3 0/2] Add Clocks for ICSSG

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Message-ID: <20241113110955.3876045-1-danishanwar@ti.com>
Date: Wed, 13 Nov 2024 16:39:53 +0530
From: MD Danish Anwar <danishanwar@...com>
To: <conor+dt@...nel.org>, <krzk+dt@...nel.org>, <robh@...nel.org>,
        <ssantosh@...nel.org>, <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>
CC: <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <s-anna@...com>, <kristo@...nel.org>,
        <srk@...com>, Roger Quadros <rogerq@...nel.org>, <danishanwar@...com>
Subject: [PATCH v3 0/2] Add Clocks for ICSSG

This series adds clocks for ICSSG for AM64x.

PATCH 1/2 Adds the dt binding necessary to add clocks to the device tree.
It adds the `clocks` in the dt binding of ICSSG node. Each ICSSG instance
has 7 clocks available to them as per AM64x TRM [1] Section 6.4.3 Table 
6-398. They are not added in the dt bindings yet. This patch adds all
available clocks to ICSSG bindings. 

PATCH 2/2 Adds the required clock to the ICSSG nodes. It also changes the
clock used from clock 20 (ICSSG_ICLK) to clock 0 (ICSSG_CORE). This patch
adds the clock-names, assigned-clocks and assigned-clock-parents to icssg
nodes.

More details on clocks can be found at [2]
There is no additional driver changes needed for this binding change.

Changes from v2 to v3:
*) Modified commit message of PATCH 1/2 to state why clocks are being added
to the binding.
*) Added all available clocks to ICSSG bindings. Earlier only two clocks
were added.
*) Added all available clocks to AM64x DTS. Earlier only two clocks were
added.

Changes from v1 to v2:
*) Dropped assigned-clocks and assigned-clock-parents from DT binding as
suggested by Krzysztof Kozlowski

[1] https://www.ti.com/lit/pdf/spruim2
[2] https://software-dl.ti.com/tisci/esd/latest/5_soc_doc/am64x/clocks.html#clocks-for-pru-icssg0-device
v1 https://lore.kernel.org/all/20241107104557.1442800-1-danishanwar@ti.com/
v2 https://lore.kernel.org/all/20241108142946.2286098-1-danishanwar@ti.com/

MD Danish Anwar (2):
  dt-bindings: soc: ti: pruss: Add clocks for ICSSG
  arm64: dts: ti: k3-am64-main: Switch ICSSG clock to core clock

 .../devicetree/bindings/soc/ti/ti,pruss.yaml  | 10 +++++++++
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi      | 22 +++++++++++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)

base-commit: bd05b9a700c10473c2f52bf12c5c5938c30e80b0
-- 
2.34.1