linux-kernel - [PATCH 4/7] Documentation: charger: max77693: Document exported sysfs entry

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Message-id: <1412252528-30148-5-git-send-email-k.kozlowski@samsung.com>
Date:	Thu, 02 Oct 2014 14:22:05 +0200
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-api@...r.kernel.org
Cc:	Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Subject: [PATCH 4/7] Documentation: charger: max77693: Document exported sysfs
 entry

Document the settings exported by max77693 charger driver through sysfs
entries:
 - fast_charge_timer
 - top_off_threshold_current
 - top_off_timer

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
---
 Documentation/ABI/testing/sysfs-class-power | 42 +++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 909e7602c717..369d2a2d7d3e 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -32,3 +32,45 @@ Description:
 		Valid values:
 		- 5, 6 or 7 (hours),
 		- 0: disabled.
+
+What:		/sys/class/power_supply/max77693-charger/device/fast_charge_timer
+Date:		January 2015
+KernelVersion:	3.19.0
+Contact:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
+Description:
+		This entry shows and sets the maximum time the max77693
+		charger operates in fast-charge mode. When the timer expires
+		the device will terminate fast-charge mode (charging current
+		will drop to 0 A) and will trigger interrupt.
+
+		Valid values:
+		- 4 - 16 (hours), step by 2 (rounded down)
+		- 0: disabled.
+
+What:		/sys/class/power_supply/max77693-charger/device/top_off_threshold_current
+Date:		January 2015
+KernelVersion:	3.19.0
+Contact:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
+Description:
+		This entry shows and sets the charging current threshold for
+		entering top-off charging mode. When charging current in fast
+		charge mode drops below this value, the charger will trigger
+		interrupt and start top-off charging mode.
+
+		Valid values:
+		- 100000 - 200000 (microamps), step by 25000 (rounded down)
+		- 200000 - 350000 (microamps), step by 50000 (rounded down)
+		- 0: disabled.
+
+What:		/sys/class/power_supply/max77693-charger/device/top_off_timer
+Date:		January 2015
+KernelVersion:	3.19.0
+Contact:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
+Description:
+		This entry shows and sets the maximum time the max77693
+		charger operates in top-off charge mode. When the timer expires
+		the device will terminate top-off charge mode (charging current
+		will drop to 0 A) and will trigger interrupt.
+
+		Valid values:
+		- 0 - 70 (minutes), step by 10 (rounded down)
-- 
1.9.1

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