linux-kernel - [PATCH] ARM: at91: Kconfig: implement PIT64B selection

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Message-ID: <20220309100802.3610259-1-claudiu.beznea@microchip.com>
Date:   Wed, 9 Mar 2022 12:08:02 +0200
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <ludovic.desroches@...rochip.com>, <linux@...linux.org.uk>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH] ARM: at91: Kconfig: implement PIT64B selection

Implement PIT64B selection thus it will be available for the necessary
targets (at the moment SAM9X60 and SAMA7G5) w/o the necessity to
specify it via defconfig. With this the current CONFIG_TIMER_OF
dependency of PIT64B driver could be removed. Along with changes
on AT91 Kconfig removed CONFIG_MICROCHIP_PIT64B from defconfigs.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
 arch/arm/configs/at91_dt_defconfig  | 1 -
 arch/arm/configs/multi_v7_defconfig | 1 -
 arch/arm/configs/sama7_defconfig    | 1 -
 arch/arm/mach-at91/Kconfig          | 9 +++++++++
 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm/configs/at91_dt_defconfig b/arch/arm/configs/at91_dt_defconfig
index 549d01be0b47..04f71dac9c97 100644
--- a/arch/arm/configs/at91_dt_defconfig
+++ b/arch/arm/configs/at91_dt_defconfig
@@ -195,7 +195,6 @@ CONFIG_RTC_DRV_AT91SAM9=y
 CONFIG_DMADEVICES=y
 CONFIG_AT_HDMAC=y
 CONFIG_AT_XDMAC=y
-CONFIG_MICROCHIP_PIT64B=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_IIO=y
 CONFIG_AT91_ADC=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 8863fa969ede..bec62d5aa3c6 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -989,7 +989,6 @@ CONFIG_APQ_MMCC_8084=y
 CONFIG_MSM_GCC_8660=y
 CONFIG_MSM_MMCC_8960=y
 CONFIG_MSM_MMCC_8974=y
-CONFIG_MICROCHIP_PIT64B=y
 CONFIG_BCM2835_MBOX=y
 CONFIG_ROCKCHIP_IOMMU=y
 CONFIG_TEGRA_IOMMU_GART=y
diff --git a/arch/arm/configs/sama7_defconfig b/arch/arm/configs/sama7_defconfig
index 07b0494ef743..2b0f020a18eb 100644
--- a/arch/arm/configs/sama7_defconfig
+++ b/arch/arm/configs/sama7_defconfig
@@ -182,7 +182,6 @@ CONFIG_RTC_DRV_AT91SAM9=y
 CONFIG_DMADEVICES=y
 CONFIG_AT_XDMAC=y
 CONFIG_STAGING=y
-CONFIG_MICROCHIP_PIT64B=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_IIO=y
 CONFIG_IIO_SW_TRIGGER=y
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 279810381256..1531b4625c76 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -165,6 +165,15 @@ config ATMEL_CLOCKSOURCE_TCB
 	  to make a single 32-bit timer.
 	  It can also be used as a clock event device supporting oneshot mode.
 
+config MICROCHIP_CLOCKSOURCE_PIT64B
+	bool "64-bit Periodic Interval Timer (PIT64B) support"
+	default SOC_SAM9X60 || SOC_SAMA7
+	select MICROCHIP_PIT64B
+	help
+	  Select this to get a high resolution clockevent (SAM9X60) or
+	  clocksource and clockevent (SAMA7G5) based on Microchip 64-bit
+	  Periodic Interval Timer.
+
 config HAVE_AT91_UTMI
 	bool
 
-- 
2.32.0