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
next 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
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