From: Jonathan Richardson <jonathar@broadcom.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Grant Likely <grant.likely@linaro.org>,
Rob Herring <robh+dt@kernel.org>
Cc: Ray Jui <rjui@broadcom.com>,
Jonathan Richardson <jonathar@broadcom.com>,
<linux-kernel@vger.kernel.org>, <linux-input@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<bcm-kernel-feedback-list@broadcom.com>,
<devicetree@vger.kernel.org>
Subject: [PATCH 2/2] Input: touchscreen-iproc: add device tree bindings
Date: Wed, 17 Dec 2014 17:59:52 -0800 [thread overview]
Message-ID: <1418867992-3550-3-git-send-email-jonathar@broadcom.com> (raw)
In-Reply-To: <1418867992-3550-1-git-send-email-jonathar@broadcom.com>
Documents the touchscreen device tree binding for Broadcom iProc family
of SoCs.
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
---
.../input/touchscreen/brcm,iproc-touchscreen.txt | 70 ++++++++++++++++++++
1 file changed, 70 insertions(+)
create mode 100644 Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
diff --git a/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
new file mode 100644
index 0000000..eb28822
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
@@ -0,0 +1,70 @@
+* Broadcom's IPROC Touchscreen Controller
+
+Required properties:
+- compatible: must be "brcm,iproc-touchscreen"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- clocks: The clock provided by the SOC to driver the tsc
+- clock-name: name for the clock
+- interrupts: The touchscreen controller's interrupt
+
+Optional properties:
+- scanning_period: Time between scans. Each step is 1024 us. Valid 1-256.
+- debounce_timeout: Each step is 512 us. Valid 0-255
+- settling_timeout: The settling duration (in ms) is the amount of time
+ the tsc waits to allow the voltage to settle after
+ turning on the drivers in detection mode.
+ Valid values: 0-11
+ 0 = 0.008 ms
+ 1 = 0.01 ms
+ 2 = 0.02 ms
+ 3 = 0.04 ms
+ 4 = 0.08 ms
+ 5 = 0.16 ms
+ 6 = 0.32 ms
+ 7 = 0.64 ms
+ 8 = 1.28 ms
+ 9 = 2.56 ms
+ 10 = 5.12 ms
+ 11 = 10.24 ms
+- touch_timeout: The continuous number of scan periods in which touch is
+ not detected before the controller returns to idle state.
+ Valid values 0-255.
+- average_data: Number of data samples which are averaged before a final
+ data point is placed into the FIFO
+ Valid values 0-7
+ 0 = 1 sample
+ 1 = 2 samples
+ 2 = 4 samples
+ 3 = 8 samples
+ 4 = 16 samples
+ 5 = 32 samples
+ 6 = 64 samples
+ 7 = 128 samples
+- fifo_threshold: Interrupt is generated whenever the number of fifo
+ entries exceeds this value
+ Valid values 0-31
+- ts-rotation: Touch screen controller and display panel orientation angle.
+ 0 = Tsc x_min y_min placed at LCD x_min y_min. None
+ 1 = Tsc x_min y_max placed at LCD x_min y_min. 90 degrees
+ 2 = Tsc x_max y_max placed at LCD x_min y_min. 180 degrees
+ 3 = Tsc x_max y_min placed at LCD x_min y_min. 270 degrees
+Example:
+
+ touchscreen: tsc@0x180A6000 {
+ compatible = "brcm,iproc-touchscreen";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x180A6000 0x40>;
+ clocks = <&adc_clk>;
+ clock-names = "tsc_clk";
+ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+
+ scanning_period = <5>;
+ debounce_timeout = <40>;
+ settling_timeout = <7>;
+ touch_timeout = <10>;
+ average_data = <5>;
+ fifo_threshold = <1>;
+ ts-rotation = <2>;
+ };
--
1.7.9.5
next prev parent reply other threads:[~2014-12-18 2:00 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Jonathan Richardson <jonathar@broadcom.com>
2014-09-16 19:58 ` [PATCH 0/6] Add initial support for Broadcom Cygnus SoC Jonathan Richardson
2014-09-16 19:58 ` [PATCH 1/6] ARM: cygnus: Initial " Jonathan Richardson
2014-09-17 0:00 ` Mark Rutland
2014-09-18 23:33 ` Jonathan Richardson
2014-09-16 19:58 ` [PATCH 2/6] clk: Clock driver " Jonathan Richardson
2014-09-17 0:47 ` Mark Rutland
2014-09-18 23:43 ` Jonathan Richardson
2014-09-16 19:58 ` [PATCH 3/6] dt-bindings: Document Broadcom Cygnus SoC and clock driver Jonathan Richardson
2014-09-16 19:58 ` [PATCH 4/6] ARM: dts: Enable Broadcom Cygnus SoC Jonathan Richardson
2014-09-16 19:58 ` [PATCH 5/6] ARM: cygnus defconfig : Initial defconfig for " Jonathan Richardson
2014-09-16 19:58 ` [PATCH 6/6] MAINTAINERS: Entry for Cygnus/iproc arm architecture and clock drivers Jonathan Richardson
2014-09-18 22:31 ` [PATCH 0/6] Add initial support for Broadcom Cygnus SoC Hauke Mehrtens
2014-09-18 22:39 ` Florian Fainelli
2014-09-18 22:54 ` Hauke Mehrtens
2014-09-19 0:58 ` Scott Branden
2014-09-23 21:17 ` [PATCH v2 " Jonathan Richardson
2014-09-23 21:17 ` [PATCH v2 1/6] ARM: cygnus: Initial " Jonathan Richardson
2014-09-23 21:17 ` [PATCH v2 2/6] clk: Clock driver " Jonathan Richardson
2014-09-23 21:17 ` [PATCH v2 3/6] dt-bindings: Document Broadcom Cygnus SoC and clock driver Jonathan Richardson
2014-09-23 21:17 ` [PATCH v2 4/6] ARM: dts: Enable Broadcom Cygnus SoC Jonathan Richardson
2014-09-23 21:17 ` [PATCH v2 5/6] ARM: cygnus defconfig : Initial defconfig for " Jonathan Richardson
2014-09-23 21:17 ` [PATCH v2 6/6] MAINTAINERS: Entry for Cygnus/iproc arm architecture and clock drivers Jonathan Richardson
2014-09-25 21:04 ` [PATCH v2 0/6] Add initial support for Broadcom Cygnus SoC Scott Branden
2014-09-25 21:22 ` Florian Fainelli
2014-09-26 0:14 ` Florian Fainelli
2014-09-26 0:28 ` Jonathan Richardson
2014-09-26 0:34 ` Florian Fainelli
2014-12-11 1:07 ` [PATCH v2 1/2] pwm: kona: Fix incorrect enable, config, and disable procedures Jonathan Richardson
2014-12-11 1:07 ` [PATCH v2 2/2] pwm: kona: Remove setting default smooth type and polarity for all channels Jonathan Richardson
2014-12-15 7:18 ` [PATCH v2 1/2] pwm: kona: Fix incorrect enable, config, and disable procedures Tim Kryger
2014-12-16 19:36 ` Jonathan Richardson
2014-12-17 18:46 ` [PATCH v3 " Jonathan Richardson
2014-12-17 18:46 ` [PATCH v3 2/2] pwm: kona: Remove setting default smooth type and polarity for all channels Jonathan Richardson
2014-12-20 22:38 ` [PATCH v3 1/2] pwm: kona: Fix incorrect enable, config, and disable procedures Tim Kryger
2014-12-22 22:49 ` Jonathan Richardson
2014-12-18 1:59 ` [PATCH 0/2] Add support for Broadcom iProc touchscreen Jonathan Richardson
2014-12-18 1:59 ` [PATCH 1/2] Input: touchscreen-iproc: Add Broadcom iProc touchscreen driver Jonathan Richardson
2014-12-18 2:14 ` Joe Perches
2014-12-19 19:51 ` Jonathan Richardson
2014-12-19 19:56 ` Dmitry Torokhov
2014-12-18 1:59 ` Jonathan Richardson [this message]
2014-12-19 22:17 ` [PATCH v2 0/2] Add support for Broadcom iProc touchscreen Jonathan Richardson
2014-12-19 22:17 ` [PATCH v2 1/2] Input: touchscreen-iproc: Add Broadcom iProc touchscreen driver Jonathan Richardson
2014-12-19 22:26 ` Joe Perches
2014-12-19 23:03 ` Jonathan Richardson
2015-01-01 0:55 ` Jonathan Richardson
2015-01-15 1:08 ` Florian Fainelli
2015-01-15 19:19 ` Jonathan Richardson
2015-01-15 1:02 ` Dmitry Torokhov
2015-01-15 5:44 ` Scott Branden
2015-01-15 6:07 ` Dmitry Torokhov
2015-01-15 19:51 ` Jonathan Richardson
2015-02-11 18:45 ` Jonathan Richardson
2015-02-24 23:18 ` Dmitry Torokhov
2015-02-27 1:02 ` Jonathan Richardson
2015-02-24 23:29 ` Dmitry Torokhov
2015-03-02 19:13 ` Jonathan Richardson
2014-12-19 22:17 ` [PATCH v2 2/2] Input: touchscreen-iproc: add device tree bindings Jonathan Richardson
2014-12-30 22:43 ` [PATCH v4 0/3] Fix bugs in kona pwm driver and pwm core Jonathan Richardson
2014-12-30 22:43 ` [PATCH v4 1/3] pwm: kona: Fix incorrect config, disable, and polarity procedures Jonathan Richardson
2014-12-30 22:43 ` [PATCH v4 2/3] pwm: kona: Remove setting default smooth type and polarity for all channels Jonathan Richardson
2015-01-05 1:12 ` Tim Kryger
2015-01-05 1:33 ` Tim Kryger
2014-12-30 22:43 ` [PATCH v4 3/3] pwm: core: Set enable state properly on failed call to enable Jonathan Richardson
2015-01-07 19:42 ` [PATCH v5 0/2] Fix bugs in kona pwm driver and pwm core Jonathan Richardson
2015-01-07 19:42 ` [PATCH v5 1/2] pwm: kona: Fix incorrect config, disable, and polarity procedures Jonathan Richardson
2015-01-07 19:42 ` [PATCH v5 2/2] pwm: core: Set enable state properly on failed call to enable Jonathan Richardson
2015-02-11 23:59 ` Dmitry Torokhov
2015-02-24 19:13 ` [PATCH 0/1] Enable Broadcom Cygnus BCM958305K Jonathan Richardson
2015-02-24 19:13 ` [PATCH 1/1] ARM: dts: " Jonathan Richardson
2015-02-25 19:04 ` [PATCH 0/1] Synopsis 8250 serial port driver fix Jonathan Richardson
2015-02-25 19:04 ` [PATCH 1/1] serial: 8250_dw: Fix get_mctrl behaviour Jonathan Richardson
2015-02-25 19:21 ` Arnd Bergmann
2015-02-25 20:00 ` Jonathan Richardson
2015-02-25 20:07 ` Arnd Bergmann
2015-02-27 0:35 ` [PATCH v2 0/1] Synopsis 8250 serial port driver fix Jonathan Richardson
2015-02-27 0:35 ` [PATCH v2 1/1] serial: 8250_dw: Fix get_mctrl behaviour Jonathan Richardson
2015-03-09 18:40 ` Dmitry Torokhov
2015-03-09 18:51 ` Jonathan Richardson
2015-03-02 22:41 ` [PATCH RESEND 0/1] Enable Broadcom Cygnus BCM958305K Jonathan Richardson
2015-03-02 22:41 ` [PATCH RESEND 1/1] ARM: dts: " Jonathan Richardson
2015-03-02 23:45 ` Florian Fainelli
2015-03-11 1:17 ` [PATCH v3 0/2] Add support for Broadcom iProc touchscreen Jonathan Richardson
2015-03-11 1:17 ` [PATCH v3 1/2] Input: touchscreen-iproc: Add Broadcom iProc touchscreen driver Jonathan Richardson
2015-03-11 9:46 ` Paul Bolle
2015-03-11 17:05 ` Jonathan Richardson
2015-03-11 1:17 ` [PATCH v3 2/2] Input: touchscreen-iproc: add device tree bindings Jonathan Richardson
2015-03-12 17:45 ` [PATCH v4 0/2] Add support for Broadcom iProc touchscreen Jonathan Richardson
2015-03-12 17:45 ` [PATCH v4 1/2] Input: touchscreen-iproc: Add Broadcom iProc touchscreen driver Jonathan Richardson
2015-03-12 17:59 ` Joe Perches
2015-03-12 22:44 ` Jonathan Richardson
2015-03-12 17:45 ` [PATCH v4 2/2] Input: touchscreen-iproc: add device tree bindings Jonathan Richardson
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