From: Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
To: Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Daniel Lezcano
<daniel.lezcano-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
wsd_upstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org
Subject: [PATCH v9 1/5] clocksource/drivers/timer-mediatek: Add system timer bindings
Date: Fri, 6 Jul 2018 07:11:24 +0800 [thread overview]
Message-ID: <1530832288-8156-2-git-send-email-stanley.chu@mediatek.com> (raw)
In-Reply-To: <1530832288-8156-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
This patch adds bindings of new "System Timer" on Mediatek SoCs.
Remove RTC clock in the same time because it is not used by
both "General Purpose Timer" and "System Timer" now.
Signed-off-by: Stanley Chu <stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
.../bindings/timer/mediatek,mtk-timer.txt | 34 ++++++++++++--------
1 file changed, 20 insertions(+), 14 deletions(-)
diff --git a/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt b/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
index b1fe7e9..18d4d01 100644
--- a/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
+++ b/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
@@ -1,19 +1,25 @@
-Mediatek MT6577, MT6572 and MT6589 Timers
----------------------------------------
+Mediatek Timers
+---------------
+
+Mediatek SoCs have two different timers on different platforms,
+- GPT (General Purpose Timer)
+- SYST (System Timer)
+
+The proper timer will be selected automatically by driver.
Required properties:
- compatible should contain:
- * "mediatek,mt2701-timer" for MT2701 compatible timers
- * "mediatek,mt6580-timer" for MT6580 compatible timers
- * "mediatek,mt6589-timer" for MT6589 compatible timers
- * "mediatek,mt7623-timer" for MT7623 compatible timers
- * "mediatek,mt8127-timer" for MT8127 compatible timers
- * "mediatek,mt8135-timer" for MT8135 compatible timers
- * "mediatek,mt8173-timer" for MT8173 compatible timers
- * "mediatek,mt6577-timer" for MT6577 and all above compatible timers
-- reg: Should contain location and length for timers register.
-- clocks: Clocks driving the timer hardware. This list should include two
- clocks. The order is system clock and as second clock the RTC clock.
+ * "mediatek,mt2701-timer" for MT2701 compatible timers (GPT)
+ * "mediatek,mt6580-timer" for MT6580 compatible timers (GPT)
+ * "mediatek,mt6589-timer" for MT6589 compatible timers (GPT)
+ * "mediatek,mt7623-timer" for MT7623 compatible timers (GPT)
+ * "mediatek,mt8127-timer" for MT8127 compatible timers (GPT)
+ * "mediatek,mt8135-timer" for MT8135 compatible timers (GPT)
+ * "mediatek,mt8173-timer" for MT8173 compatible timers (GPT)
+ * "mediatek,mt6577-timer" for MT6577 and all above compatible timers (GPT)
+ * "mediatek,mt6765-timer" for MT6765 compatible timers (SYST)
+- reg: Should contain location and length for timer register.
+- clocks: Should contain system clock.
Examples:
@@ -21,5 +27,5 @@ Examples:
compatible = "mediatek,mt6577-timer";
reg = <0x10008000 0x80>;
interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&system_clk>, <&rtc_clk>;
+ clocks = <&system_clk>;
};
--
1.7.9.5
next prev parent reply other threads:[~2018-07-05 23:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-05 23:11 [PATCH v9 0/5] Add system timer driver for Mediatek SoCs Stanley Chu
2018-07-05 23:11 ` [PATCH v9 3/5] clocksource/drivers/timer-mediatek: Use specific prefix for GPT Stanley Chu
[not found] ` <1530832288-8156-1-git-send-email-stanley.chu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2018-07-05 23:11 ` Stanley Chu [this message]
2018-07-06 20:51 ` [PATCH v9 1/5] clocksource/drivers/timer-mediatek: Add system timer bindings Rob Herring
2018-07-10 15:02 ` Daniel Lezcano
2018-07-12 19:16 ` Rob Herring
2018-07-12 19:49 ` Daniel Lezcano
2018-07-14 22:28 ` Daniel Lezcano
2018-07-05 23:11 ` [PATCH v9 2/5] clocksource/drivers/timer-mediatek: Rename mtk_timer to timer-mediatek Stanley Chu
2018-07-05 23:11 ` [PATCH v9 4/5] clocksource/drivers/timer-mediatek: Convert the driver to timer-of Stanley Chu
2018-07-05 23:11 ` [PATCH v9 5/5] clocksource/drivers/timer-mediatek: Add support for system timer Stanley Chu
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