[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20230214105412.5856-5-walter.chang@mediatek.com>
Date: Tue, 14 Feb 2023 18:53:14 +0800
From: <walter.chang@...iatek.com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>,
Thomas Gleixner <tglx@...utronix.de>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
"Maciej W . Rozycki" <macro@...am.me.uk>,
John Stultz <jstultz@...gle.com>,
"Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>
CC: <wsd_upstream@...iatek.com>, <stanley.chu@...iatek.com>,
<Chun-hung.Wu@...iatek.com>, <Freddy.Hsin@...iatek.com>,
Chun-Hung Wu <chun-hung.wu@...iatek.com>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>
Subject: [PATCH v2 4/4] clocksource/drivers/timer-mediatek: Make timer-mediatek become loadable module
From: Chun-Hung Wu <chun-hung.wu@...iatek.com>
Make the timer-mediatek driver which can register
an always-on timer as tick_broadcast_device on
MediaTek SoCs become loadable module in GKI.
Signed-off-by: Chun-Hung Wu <chun-hung.wu@...iatek.com>
---
drivers/clocksource/Kconfig | 2 +-
drivers/clocksource/timer-mediatek.c | 43 ++++++++++++++++++++++++++++
2 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 4469e7f555e9..41345827055b 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -472,7 +472,7 @@ config SYS_SUPPORTS_SH_CMT
bool
config MTK_TIMER
- bool "Mediatek timer driver" if COMPILE_TEST
+ tristate "Mediatek timer driver"
depends on HAS_IOMEM
select TIMER_OF
select CLKSRC_MMIO
diff --git a/drivers/clocksource/timer-mediatek.c b/drivers/clocksource/timer-mediatek.c
index d5b29fd03ca2..3358758ea694 100644
--- a/drivers/clocksource/timer-mediatek.c
+++ b/drivers/clocksource/timer-mediatek.c
@@ -13,6 +13,9 @@
#include <linux/clocksource.h>
#include <linux/interrupt.h>
#include <linux/irqreturn.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
#include <linux/sched_clock.h>
#include <linux/slab.h>
#include "timer-of.h"
@@ -450,6 +453,46 @@ static int __init mtk_gpt_init(struct device_node *node)
return 0;
}
+
+#ifdef MODULE
+static int mtk_timer_probe(struct platform_device *pdev)
+{
+ int (*timer_init)(struct device_node *node);
+ struct device_node *np = pdev->dev.of_node;
+
+ timer_init = of_device_get_match_data(&pdev->dev);
+ return timer_init(np);
+}
+
+static const struct of_device_id mtk_timer_match_table[] = {
+ {
+ .compatible = "mediatek,mt6577-timer",
+ .data = mtk_gpt_init,
+ },
+ {
+ .compatible = "mediatek,mt6765-timer",
+ .data = mtk_syst_init,
+ },
+ {
+ .compatible = "mediatek,mt6795-systimer",
+ .data = mtk_cpux_init,
+ },
+ {}
+};
+
+static struct platform_driver mtk_timer_driver = {
+ .probe = mtk_timer_probe,
+ .driver = {
+ .name = "mtk-timer",
+ .of_match_table = mtk_timer_match_table,
+ },
+};
+module_platform_driver(mtk_timer_driver);
+
+MODULE_DESCRIPTION("MediaTek Module Timer driver");
+MODULE_LICENSE("GPL v2");
+#else
TIMER_OF_DECLARE(mtk_mt6577, "mediatek,mt6577-timer", mtk_gpt_init);
TIMER_OF_DECLARE(mtk_mt6765, "mediatek,mt6765-timer", mtk_syst_init);
TIMER_OF_DECLARE(mtk_mt6795, "mediatek,mt6795-systimer", mtk_cpux_init);
+#endif
--
2.18.0
Powered by blists - more mailing lists