linux-kernel - [PATCH v1 1/4] clocksource/drivers/mmio: Export clocksource_mmio

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Message-Id: <20260119064118.2493736-2-zhipeng.wang_1@nxp.com>
Date: Mon, 19 Jan 2026 15:41:15 +0900
From: Zhipeng Wang <zhipeng.wang_1@....com>
To: daniel.lezcano@...aro.org,
	tglx@...nel.org
Cc: shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	chun-hung.wu@...iatek.com,
	walter.chang@...iatek.com,
	jstultz@...gle.com,
	amergnat@...libre.com,
	aisheng.dong@....com,
	jindong.yue@....com,
	xuegang.liu@....com
Subject: [PATCH v1 1/4] clocksource/drivers/mmio: Export clocksource_mmio_init()

From: Chun-Hung Wu <chun-hung.wu@...iatek.com>

Export clocksource_mmio_init() and clocksource_mmio_readl_up()
to support building clocksource driver as module,
such as timer-mediatek.c.

Signed-off-by: Chun-Hung Wu <chun-hung.wu@...iatek.com>
Signed-off-by: Walter Chang <walter.chang@...iatek.com>
Acked-by: John Stultz <jstultz@...gle.com>
---
 drivers/clocksource/mmio.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/mmio.c b/drivers/clocksource/mmio.c
index 9de751531831..95b591c8aa4a 100644
--- a/drivers/clocksource/mmio.c
+++ b/drivers/clocksource/mmio.c
@@ -21,6 +21,7 @@ u64 clocksource_mmio_readl_up(struct clocksource *c)
 {
 	return (u64)readl_relaxed(to_mmio_clksrc(c)->reg);
 }
+EXPORT_SYMBOL_GPL(clocksource_mmio_readl_up);
 
 u64 clocksource_mmio_readl_down(struct clocksource *c)
 {
@@ -46,9 +47,9 @@ u64 clocksource_mmio_readw_down(struct clocksource *c)
  * @bits:	Number of valid bits
  * @read:	One of clocksource_mmio_read*() above
  */
-int __init clocksource_mmio_init(void __iomem *base, const char *name,
-	unsigned long hz, int rating, unsigned bits,
-	u64 (*read)(struct clocksource *))
+int clocksource_mmio_init(void __iomem *base, const char *name,
+			  unsigned long hz, int rating, unsigned int bits,
+			  u64 (*read)(struct clocksource *))
 {
 	struct clocksource_mmio *cs;
 
@@ -68,3 +69,4 @@ int __init clocksource_mmio_init(void __iomem *base, const char *name,
 
 	return clocksource_register_hz(&cs->clksrc, hz);
 }
+EXPORT_SYMBOL_GPL(clocksource_mmio_init);
-- 
2.34.1