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From: adrian.ho.yin.ng@altera.com
To: Dinh Nguyen <dinguyen@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
Subject: [PATCH 0/3] clk: socfpga: convert clock managers to CLK_OF_DECLARE()
Date: Fri, 11 Sep 2026 15:01:17 +0800	[thread overview]
Message-ID: <cover.1789096458.git.adrian.ho.yin.ng@altera.com> (raw)

From: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>

The SoCFPGA Stratix10, Agilex, and Agilex5 clock managers are currently
registered as platform drivers via core_initcall(). That is too late for
early OF clock consumers: TIMER_OF_DECLARE callbacks run from time_init()
before those drivers probe, and the DW APB timer cannot defer, so
clk_get() fails and the timer is never brought up.

As discussed on the list [1], convert these drivers to CLK_OF_DECLARE()
so the providers are registered from of_clk_init() and clocks are
available before platform devices probe.

This series applies the same conversion to Agilex (including eASIC N5X),
Agilex5, and Stratix10.

Boot-tested on Agilex7 (agilex7dksiagf014eb): dw_apb_timer registers as
clocksource early, with no clk_get() failures.

[1] https://lore.kernel.org/all/20260903175356.BF1461F000E9@smtp.kernel.org/

Adrian Ng Ho Yin (3):
  clk: socfpga: agilex: convert to CLK_OF_DECLARE()
  clk: socfpga: agilex5: convert to CLK_OF_DECLARE()
  clk: socfpga: stratix10: convert to CLK_OF_DECLARE()

 drivers/clk/socfpga/clk-agilex.c  | 83 +++++++++++--------------------
 drivers/clk/socfpga/clk-agilex5.c | 56 +++++---------------
 drivers/clk/socfpga/clk-s10.c     | 50 +++++--------------
 3 files changed, 56 insertions(+), 133 deletions(-)

-- 
2.49.GIT

             reply	other threads:[~2026-09-11  7:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-11  7:01 adrian.ho.yin.ng [this message]
2026-09-11  7:01 ` [PATCH 1/3] clk: socfpga: agilex: convert " adrian.ho.yin.ng
2026-09-11  7:01 ` [PATCH 2/3] clk: socfpga: agilex5: " adrian.ho.yin.ng
2026-09-11  7:01 ` [PATCH 3/3] clk: socfpga: stratix10: " adrian.ho.yin.ng

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