linux-kernel - [PATCH v4 0/2] clk: spacemit: Fix module build for spacemit common ccu driver

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Message-ID: <20251219012819.440972-1-inochiama@gmail.com>
Date: Fri, 19 Dec 2025 09:28:16 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Yixun Lan <dlan@...too.org>,
	Haylen Chu <heylenay@....org>,
	Alex Elder <elder@...cstar.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Troy Mitchell <troy.mitchell@...ux.spacemit.com>,
	Charles Mirabile <cmirabil@...hat.com>,
	Brian Masney <bmasney@...hat.com>,
	Akhilesh Patil <akhilesh@...iitb.ac.in>
Cc: linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	spacemit@...ts.linux.dev,
	Longbin Li <looong.bin@...il.com>
Subject: [PATCH v4 0/2] clk: spacemit: Fix module build for spacemit common ccu driver

Currently, the SPACEMIT_CCU entry is only a switch for enabling entry
SPACEMIT_K1_CCU. It does not guide the build for common clock codes
even if it is a tristate entry. This makes this entry useless.

Change the Makefile to add a separate build for common clock logic,
so the SPACEMIT_CCU entry takes effect, also add necessary
MODULE_LICENSE()/MODULE_DESCRIPTION()/EXPORT_SYMBOL() for the module
build.

This patch mostly fix the build problem, and it should serve as a
basic for the incoming K3 clock driver. See link.

Link: https://lore.kernel.org/all/20251217001833-GYE1903981@gentoo.org

Change from v3:
1. patch 1: change Makefile to trigger module build actually
2. patch 2: new patch for remove internal Kconfig entry

Change from v2:
1. change namespace name to CLK_SPACEMIT

Change from v1:
1. Use EXPORT_SYMBOL_NS_GPL to export clock ops

Inochi Amaoto (2):
  clk: spacemit: Respect Kconfig setting when building modules
  clk: spacemit: Hide common clock driver from user controller

 drivers/clk/spacemit/Kconfig      | 14 ++++++--------
 drivers/clk/spacemit/Makefile     |  9 +++++++--
 drivers/clk/spacemit/ccu-k1.c     |  1 +
 drivers/clk/spacemit/ccu_common.c |  6 ++++++
 drivers/clk/spacemit/ccu_ddn.c    |  1 +
 drivers/clk/spacemit/ccu_mix.c    |  9 +++++++++
 drivers/clk/spacemit/ccu_pll.c    |  1 +
 7 files changed, 31 insertions(+), 10 deletions(-)
 create mode 100644 drivers/clk/spacemit/ccu_common.c

--
2.52.0