Linux-ARM-Kernel Archive on lore.kernel.org
 help / color / mirror / Atom feed
From: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
To: <linux-clk@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <git@amd.com>, Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Michal Simek <michal.simek@amd.com>,
	Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>,
	<devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v2 0/8]  clk: clocking-wizard: Add static-config clock provider support
Date: Thu, 9 Jul 2026 16:43:55 +0530	[thread overview]
Message-ID: <20260709111403.1579159-1-shubhrajyoti.datta@amd.com> (raw)


 The Xilinx clocking-wizard IP can be used in a static-config mode
 where the hardware is pre-programmed at boot and no dynamic register
 access is required. In that case the driver should skip ioremap,
 read the fixed multiplier/divisor pairs from the device tree, and
 register fixed-factor clocks derived from clk_in1.

 This series:
   - adds the xlnx,clk-mul-div binding to carry mul/div pairs
   - makes the reg property optional for static-config nodes
   - skips ioremap when xlnx,static-config is present
   - moves clk_in1 acquisition before the static-config check so it
     is available in both code paths
   - registers fixed-factor output clocks in static-config mode


Changes in v2:
Merged the devicetree  patches
Patch added for notifier block and division by 0 

Shubhrajyoti Datta (8):
  dt-bindings: clock: clocking-wizard: Add static-config mode support
  clk: clocking-wizard: Do not map the memory for static-config
  clk: clocking-wizard: Move clk_in1 acquisition before static-config
    check
  clk: clocking-wizard: Add static-config clock provider support
  clk: clocking-wizard: Skip s_axi_aclk for static-config
  clk: clocking-wizard: Use dev_err_probe() when mapping registers
  clk: clocking-wizard: Fix division by zero and unbounded register
    write
  clk: clocking-wizard: Use separate notifier_block for each clock

 .../bindings/clock/xlnx,clocking-wizard.yaml  |  53 ++++-
 drivers/clk/xilinx/clk-xlnx-clock-wizard.c    | 195 +++++++++++++++---
 2 files changed, 220 insertions(+), 28 deletions(-)

-- 
2.34.1



             reply	other threads:[~2026-07-09 11:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-09 11:13 Shubhrajyoti Datta [this message]
2026-07-09 11:13 ` [PATCH v2 1/8] dt-bindings: clock: clocking-wizard: Add static-config mode support Shubhrajyoti Datta
2026-07-09 11:13 ` [PATCH v2 2/8] clk: clocking-wizard: Do not map the memory for static-config Shubhrajyoti Datta
2026-07-09 11:13 ` [PATCH v2 3/8] clk: clocking-wizard: Move clk_in1 acquisition before static-config check Shubhrajyoti Datta
2026-07-09 11:13 ` [PATCH v2 4/8] clk: clocking-wizard: Add static-config clock provider support Shubhrajyoti Datta
2026-07-09 11:14 ` [PATCH v2 5/8] clk: clocking-wizard: Skip s_axi_aclk for static-config Shubhrajyoti Datta
2026-07-09 11:14 ` [PATCH v2 6/8] clk: clocking-wizard: Use dev_err_probe() when mapping registers Shubhrajyoti Datta
2026-07-09 11:14 ` [PATCH v2 7/8] clk: clocking-wizard: Fix division by zero and unbounded register write Shubhrajyoti Datta
2026-07-09 11:14 ` [PATCH v2 8/8] clk: clocking-wizard: Use separate notifier_block for each clock Shubhrajyoti Datta

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260709111403.1579159-1-shubhrajyoti.datta@amd.com \
    --to=shubhrajyoti.datta@amd.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=git@amd.com \
    --cc=krzk+dt@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-clk@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=michal.simek@amd.com \
    --cc=mturquette@baylibre.com \
    --cc=robh@kernel.org \
    --cc=sboyd@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox