From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755665AbcBIJGA (ORCPT ); Tue, 9 Feb 2016 04:06:00 -0500 Received: from 5520-maca-inet1-outside.broadcom.com ([216.31.211.11]:4577 "EHLO mail-irv-18.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752530AbcBIJFs (ORCPT ); Tue, 9 Feb 2016 04:05:48 -0500 X-Greylist: delayed 473 seconds by postgrey-1.27 at vger.kernel.org; Tue, 09 Feb 2016 04:05:48 EST From: Raveendra Padasalagi To: Dmitry Torokhov , Russell King , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org Cc: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Jonathan Richardson , Jon Mason , Florian Fainelli , Ray Jui , Scott Branden , linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Raveendra Padasalagi Subject: [PATCH 3/3] ARM: dts: use syscon in cygnus touchscreen dt node Date: Tue, 9 Feb 2016 14:27:57 +0530 Message-Id: <1455008277-8312-4-git-send-email-raveendra.padasalagi@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1455008277-8312-1-git-send-email-raveendra.padasalagi@broadcom.com> References: <1455008277-8312-1-git-send-email-raveendra.padasalagi@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In cygnus touch screen controller registers are shared with ADC and flex timer. Using readl/writel could lead to race condition. In such cases we need to support register access using syscon framework based API's. So Added dt changes to use syscon. Signed-off-by: Raveendra Padasalagi Reviewed-by: Ray Jui Reviewed-by: Scott Branden --- arch/arm/boot/dts/bcm-cygnus.dtsi | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi index 3878793..9190224 100644 --- a/arch/arm/boot/dts/bcm-cygnus.dtsi +++ b/arch/arm/boot/dts/bcm-cygnus.dtsi @@ -351,9 +351,16 @@ <&pinctrl 142 10 1>; }; + ts_adc_syscon: ts_adc_syscon@0x180a6000 { + compatible = "syscon"; + reg = <0x180a6000 0xc30>; + }; + touchscreen: tsc@180a6000 { compatible = "brcm,iproc-touchscreen"; - reg = <0x180a6000 0x40>; + #address-cells = <1>; + #size-cells = <1>; + ts_syscon = <&ts_adc_syscon>; clocks = <&asiu_clks BCM_CYGNUS_ASIU_ADC_CLK>; clock-names = "tsc_clk"; interrupts = ; -- 1.9.1