From patchwork Mon Aug 14 08:42:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Yan X-Patchwork-Id: 9898349 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D9E136038C for ; Mon, 14 Aug 2017 08:44:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB051284E4 for ; Mon, 14 Aug 2017 08:44:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BF787284FF; Mon, 14 Aug 2017 08:44:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 146E628505 for ; Mon, 14 Aug 2017 08:44:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=JPSRWHR1k7hIYKj4Nv/AWzqADK17JKxbr3dkGoaxdII=; b=NswhYs80H7IUwyoaVgrPy2P0Pg QmX1BEDS3lkb0kx8E/qOIeTtWL2xDaizpmK/Pc4FTizmWH8qxnRa3wGMr/vQ3zCFwHMRO+09OAdQF 2xYA0NXadta/zk3bcsTD4+7pItS84gciHiZ7CDbakVLw3Smr6Rz9E/nm/xEDH3fW/QQ6gNl5kF/6Y tJAoAbd8YeI3Tj3uylIIzAfpfsZLj1LOOfhXXrxCQmWd4k8g0EwXotCOl4JhANLGPII9jntA8x8O/ 4qdl/ULRvOXD5Z8WBUKds1XVN4DDtpmXYOGL3JKt7NvF9QaL/9w0NJKvWVajo/GAgBznNzvJiXhyO Gz3tqt1Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dhAyC-0004AU-Hw; Mon, 14 Aug 2017 08:43:32 +0000 Received: from regular1.263xmail.com ([211.150.99.136]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1dhAy7-00047L-Al; Mon, 14 Aug 2017 08:43:29 +0000 Received: from andy.yan?rock-chips.com (unknown [192.168.167.232]) by regular1.263xmail.com (Postfix) with ESMTP id 1A40B42; Mon, 14 Aug 2017 16:43:04 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTPA id 267E43AE; Mon, 14 Aug 2017 16:42:59 +0800 (CST) X-RL-SENDER: andy.yan@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: andy.yan@rock-chips.com X-UNIQUE-TAG: <3cf94c170ae067ea852c2f0e54157ea7> X-ATTACHMENT-NUM: 0 X-SENDER: yxj@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 24326TO9I55; Mon, 14 Aug 2017 16:43:03 +0800 (CST) From: Andy Yan To: heiko@sntech.de Subject: [PATCH v4 6/8] ARM: dts: rockchip: add pwm backlight for rv1108 evb Date: Mon, 14 Aug 2017 16:42:47 +0800 Message-Id: <1502700167-8730-1-git-send-email-andy.yan@rock-chips.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1502699477-8063-1-git-send-email-andy.yan@rock-chips.com> References: <1502699477-8063-1-git-send-email-andy.yan@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170814_014327_817539_75E27ECD X-CRM114-Status: UNSURE ( 4.33 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, robh+dt@kernel.org, Andy Yan , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP RV1108 EVB uses pwm0 modulate the backlight, add dt node to enable it. Signed-off-by: Andy Yan --- Changes in v4: None Changes in v3: None Changes in v2: None arch/arm/boot/dts/rv1108-evb.dts | 43 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/arch/arm/boot/dts/rv1108-evb.dts b/arch/arm/boot/dts/rv1108-evb.dts index 44feea7..77ce707 100644 --- a/arch/arm/boot/dts/rv1108-evb.dts +++ b/arch/arm/boot/dts/rv1108-evb.dts @@ -55,6 +55,49 @@ stdout-path = "serial2:1500000n8"; bootargs = "root=/dev/mtdblock2 mtdparts=spi-nor:256k@0(u-boot)ro,6m(kernel)ro,9m(rootfs),-(freedisk)"; }; + + backlight: backlight { + compatible = "pwm-backlight"; + pwms = <&pwm0 0 25000 0>; + brightness-levels = < + 0 1 2 3 4 5 6 7 + 8 9 10 11 12 13 14 15 + 16 17 18 19 20 21 22 23 + 24 25 26 27 28 29 30 31 + 32 33 34 35 36 37 38 39 + 40 41 42 43 44 45 46 47 + 48 49 50 51 52 53 54 55 + 56 57 58 59 60 61 62 63 + 64 65 66 67 68 69 70 71 + 72 73 74 75 76 77 78 79 + 80 81 82 83 84 85 86 87 + 88 89 90 91 92 93 94 95 + 96 97 98 99 100 101 102 103 + 104 105 106 107 108 109 110 111 + 112 113 114 115 116 117 118 119 + 120 121 122 123 124 125 126 127 + 128 129 130 131 132 133 134 135 + 136 137 138 139 140 141 142 143 + 144 145 146 147 148 149 150 151 + 152 153 154 155 156 157 158 159 + 160 161 162 163 164 165 166 167 + 168 169 170 171 172 173 174 175 + 176 177 178 179 180 181 182 183 + 184 185 186 187 188 189 190 191 + 192 193 194 195 196 197 198 199 + 200 201 202 203 204 205 206 207 + 208 209 210 211 212 213 214 215 + 216 217 218 219 220 221 222 223 + 224 225 226 227 228 229 230 231 + 232 233 234 235 236 237 238 239 + 240 241 242 243 244 245 246 247 + 248 249 250 251 252 253 254 255>; + default-brightness-level = <200>; + }; +}; + +&pwm0 { + status = "okay"; }; &sdmmc {