linux-kernel - [PATCH v2] rtc: mt6397: select IRQ_DOMAIN instead of depending on it

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Date: Mon, 12 Feb 2024 21:02:58 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: linux-kernel@...r.kernel.org
Cc: Randy Dunlap <rdunlap@...radead.org>,
	Arnd Bergmann <arnd@...db.de>,
	Eddie Huang <eddie.huang@...iatek.com>,
	Sean Wang <sean.wang@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	linux-rtc@...r.kernel.org,
	Marc Zyngier <maz@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Peter Rosin <peda@...ntia.se>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Subject: [PATCH v2] rtc: mt6397: select IRQ_DOMAIN instead of depending on it

IRQ_DOMAIN is a hidden (not user visible) symbol. Users cannot set
it directly thru "make *config", so drivers should select it instead
of depending on it if they need it.
Relying on it being set for a dependency is risky.

Consistently using "select" or "depends on" can also help reduce
Kconfig circular dependency issues.

Therefore, change the use of "depends on" for IRQ_DOMAIN to
"select" for RTC_DRV_MT6397.

Fixes: 04d3ba70a3c9 ("rtc: mt6397: add IRQ domain dependency")
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Eddie Huang <eddie.huang@...iatek.com>
Cc: Sean Wang <sean.wang@...iatek.com>
Cc: Matthias Brugger <matthias.bgg@...il.com>
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-mediatek@...ts.infradead.org
Cc: Alessandro Zummo <a.zummo@...ertech.it>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: linux-rtc@...r.kernel.org
Cc: Marc Zyngier <maz@...nel.org>
Cc: Philipp Zabel <p.zabel@...gutronix.de>
Cc: Peter Rosin <peda@...ntia.se>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
---
v2: add Rev-by: from AngeloGioacchino

 drivers/rtc/Kconfig |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -- a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1858,7 +1858,8 @@ config RTC_DRV_MT2712
 
 config RTC_DRV_MT6397
 	tristate "MediaTek PMIC based RTC"
-	depends on MFD_MT6397 || (COMPILE_TEST && IRQ_DOMAIN)
+	depends on MFD_MT6397 || COMPILE_TEST
+	select IRQ_DOMAIN
 	help
 	  This selects the MediaTek(R) RTC driver. RTC is part of MediaTek
 	  MT6397 PMIC. You should enable MT6397 PMIC MFD before select