From patchwork Tue Sep 28 13:31:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12522723 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBC75C4332F for ; Tue, 28 Sep 2021 13:32:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D64716128B for ; Tue, 28 Sep 2021 13:32:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240902AbhI1Ndr (ORCPT ); Tue, 28 Sep 2021 09:33:47 -0400 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:40345 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241071AbhI1Ndo (ORCPT ); Tue, 28 Sep 2021 09:33:44 -0400 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 6998B6001C; Tue, 28 Sep 2021 13:32:00 +0000 (UTC) From: Miquel Raynal To: Jonathan Cameron , Lars-Peter Clausen , Lee Jones Cc: Peter Meerwald-Stadler , Rob Herring , Dmitry Torokhov , bcousson@baylibre.com, Tony Lindgren , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, Thomas Petazzoni , Vignesh Raghavendra , Lokesh Vutla , Tero Kristo , Ryan Barnett , Grygorii Strashko , Jason Reeder , , Miquel Raynal , Jonathan Cameron , Rob Herring Subject: [PATCH v4 05/48] dt-bindings: touchscreen: ti,am3359-tsc: Remove deprecated text file Date: Tue, 28 Sep 2021 15:31:00 +0200 Message-Id: <20210928133143.157329-6-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210928133143.157329-1-miquel.raynal@bootlin.com> References: <20210928133143.157329-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Now that the three hardware peaces described in this file have been translated in yaml in 3 dedicated files (MFD, touchscreen controller and ADC) it is time to remove this text file. Signed-off-by: Miquel Raynal Acked-by: Jonathan Cameron Acked-by: Rob Herring Acked-by: Dmitry Torokhov --- .../bindings/input/touchscreen/ti-tsc-adc.txt | 91 ------------------- 1 file changed, 91 deletions(-) delete mode 100644 Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt deleted file mode 100644 index aad5e34965eb..000000000000 --- a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt +++ /dev/null @@ -1,91 +0,0 @@ -* TI - TSC ADC (Touschscreen and analog digital converter) -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -Required properties: -- mfd - compatible: Should be - "ti,am3359-tscadc" for AM335x/AM437x SoCs - "ti,am654-tscadc", "ti,am3359-tscadc" for AM654 SoCs -- child "tsc" - compatible: Should be "ti,am3359-tsc". - ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen - support on the platform. - ti,x-plate-resistance: X plate resistance - ti,coordinate-readouts: The sequencer supports a total of 16 - programmable steps each step is used to - read a single coordinate. A single - readout is enough but multiple reads can - increase the quality. - A value of 5 means, 5 reads for X, 5 for - Y and 2 for Z (always). This utilises 12 - of the 16 software steps available. The - remaining 4 can be used by the ADC. - ti,wire-config: Different boards could have a different order for - connecting wires on touchscreen. We need to provide an - 8 bit number where in the 1st four bits represent the - analog lines and the next 4 bits represent positive/ - negative terminal on that input line. Notations to - represent the input lines and terminals resoectively - is as follows: - AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7. - XP = 0, XN = 1, YP = 2, YN = 3. -- child "adc" - compatible: Should be - "ti,am3359-adc" for AM335x/AM437x SoCs - "ti,am654-adc", "ti,am3359-adc" for AM654 SoCs - ti,adc-channels: List of analog inputs available for ADC. - AIN0 = 0, AIN1 = 1 and so on till AIN7 = 7. - -Optional properties: -- child "tsc" - ti,charge-delay: Length of touch screen charge delay step in terms of - ADC clock cycles. Charge delay value should be large - in order to avoid false pen-up events. This value - effects the overall sampling speed, hence need to be - kept as low as possible, while avoiding false pen-up - event. Start from a lower value, say 0x400, and - increase value until false pen-up events are avoided. - The pen-up detection happens immediately after the - charge step, so this does in fact function as a - hardware knob for adjusting the amount of "settling - time". - -- child "adc" - ti,chan-step-opendelay: List of open delays for each channel of - ADC in the order of ti,adc-channels. The - value corresponds to the number of ADC - clock cycles to wait after applying the - step configuration registers and before - sending the start of ADC conversion. - Maximum value is 0x3FFFF. - ti,chan-step-sampledelay: List of sample delays for each channel - of ADC in the order of ti,adc-channels. - The value corresponds to the number of - ADC clock cycles to sample (to hold - start of conversion high). - Maximum value is 0xFF. - ti,chan-step-avg: Number of averages to be performed for each - channel of ADC. If average is 16 then input - is sampled 16 times and averaged to get more - accurate value. This increases the time taken - by ADC to generate a sample. Valid range is 0 - average to 16 averages. Maximum value is 16. - -Example: - tscadc: tscadc@44e0d000 { - compatible = "ti,am3359-tscadc"; - tsc { - ti,wires = <4>; - ti,x-plate-resistance = <200>; - ti,coordiante-readouts = <5>; - ti,wire-config = <0x00 0x11 0x22 0x33>; - ti,charge-delay = <0x400>; - }; - - adc { - ti,adc-channels = <4 5 6 7>; - ti,chan-step-opendelay = <0x098 0x3ffff 0x098 0x0>; - ti,chan-step-sampledelay = <0xff 0x0 0xf 0x0>; - ti,chan-step-avg = <16 2 4 8>; - }; - }