linux-kernel - [PATCH v2 3/3] clk: microchip: core: allow driver to be compiled with COMPILE

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Message-Id: <20251201-clk-microchip-fixes-v2-3-9d5a0daadd98@redhat.com>
Date: Mon, 01 Dec 2025 17:06:39 -0500
From: Brian Masney <bmasney@...hat.com>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Maxime Ripard <mripard@...nel.org>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, Conor Dooley <conor@...nel.org>
Cc: linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Brian Masney <bmasney@...hat.com>
Subject: [PATCH v2 3/3] clk: microchip: core: allow driver to be compiled
 with COMPILE_TEST

This driver currently only supports builds against a PIC32 target. To
avoid future breakage in the future, let's update the Kconfig and the
driver so that it can be built with CONFIG_COMPILE_TEST enabled.

Signed-off-by: Brian Masney <bmasney@...hat.com>
---
 drivers/clk/microchip/Kconfig    | 2 +-
 drivers/clk/microchip/clk-core.c | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/microchip/Kconfig b/drivers/clk/microchip/Kconfig
index 1b9e43eb54976b219a0277cc971f353fd6af226a..1e56a057319d97e20440fe4e107d26fa85c95ab1 100644
--- a/drivers/clk/microchip/Kconfig
+++ b/drivers/clk/microchip/Kconfig
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 
 config COMMON_CLK_PIC32
-	def_bool COMMON_CLK && MACH_PIC32
+	def_bool (COMMON_CLK && MACH_PIC32) || COMPILE_TEST
 
 config MCHP_CLK_MPFS
 	bool "Clk driver for PolarFire SoC"
diff --git a/drivers/clk/microchip/clk-core.c b/drivers/clk/microchip/clk-core.c
index 664663d9d7765ee0c61203ea11211da54b709377..49c7b8b487ed6bc0e43d7177cb7c4cee9008f544 100644
--- a/drivers/clk/microchip/clk-core.c
+++ b/drivers/clk/microchip/clk-core.c
@@ -9,7 +9,15 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/iopoll.h>
+
+#if !defined(CONFIG_MACH_PIC32) && defined(CONFIG_COMPILE_TEST)
+#define PIC32_CLR(_reg)		((_reg) + 0x04)
+#define PIC32_SET(_reg)		((_reg) + 0x08)
+#define PIC32_INV(_reg)		((_reg) + 0x0C)
+#define pic32_syskey_unlock()
+#else
 #include <asm/mach-pic32/pic32.h>
+#endif
 
 #include "clk-core.h"
 

-- 
2.51.1