From patchwork Mon Dec 7 13:11:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Caesar Wang X-Patchwork-Id: 7783731 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5353DBEEE1 for ; Mon, 7 Dec 2015 13:13:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 70341203DC for ; Mon, 7 Dec 2015 13:13:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 78EF5203ED for ; Mon, 7 Dec 2015 13:13:51 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1a5va0-0005gU-CA; Mon, 07 Dec 2015 13:11:48 +0000 Received: from mail-pf0-f196.google.com ([209.85.192.196]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1a5vZt-0005Yr-V2; Mon, 07 Dec 2015 13:11:44 +0000 Received: by pfu207 with SMTP id 207so6267378pfu.1; Mon, 07 Dec 2015 05:11:20 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=from:to:cc:subject:date:message-id; bh=JgF28/V9J6Wmq/xIMHiwwQ2y11Z2NMuCQLHCoSd9urI=; b=Kc4WJ8x0DfWtp7DgYEkNZ05xxf89SdlYXjN1Ne+tM77YF8M+qTzE6bvQL9TnQif7uA VqgDd5rKpW7UiypOtWlYeyXNMwtI2XYQnkT0VUDnxnm2wQWCySBMgZjvQX/adghzRE3P bVnTooed861z2rqQhVjpzi/19kjEX7YcURs3hjovpE2MR5NgXLFOqtiXi+ONV4YNoUuU qQDjM0HCaP7wc5cN4YfPXqKY9beb2A3SVGaLYAQ7CgMo5TjbPNu8Xwmjo0/gmiJJQFab I5QvWIpIMmVQVW5aNsjWgPLxnN1yGPUeGuCCQXxbAsWAt0MX+sCqsQBS2VVqv7hiT8ng HOAA== X-Received: by 10.98.17.131 with SMTP id 3mr42764566pfr.57.1449493880268; Mon, 07 Dec 2015 05:11:20 -0800 (PST) Received: from localhost.localdomain ([103.29.142.67]) by smtp.gmail.com with ESMTPSA id xi8sm34810710pab.9.2015.12.07.05.11.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 07 Dec 2015 05:11:19 -0800 (PST) From: Caesar Wang To: Heiko Stuebner Subject: [PATCH 1/2] ARM: dts: modify rk3288 jaq backlight-level Date: Mon, 7 Dec 2015 21:11:08 +0800 Message-Id: <1449493869-32151-1-git-send-email-wxt@rock-chips.com> X-Mailer: git-send-email 1.9.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151207_051142_050443_8F3F12CD X-CRM114-Status: GOOD ( 10.06 ) X-Spam-Score: -2.6 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Russell King , Pawel Moll , Ian Campbell , linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Rob Herring , Kumar Gala , linux-arm-kernel@lists.infradead.org, Caesar Wang MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP the panel which jaq use require the pwm duty cycle larger than 3%, when the backlight status from power off to power on, otherwise the backlight will flush, so we modify the second brightness-level to 8, and when the backlight from power off to power on the pwm duty cycle will larger than 3%. Signed-off-by: Caesar Wang --- Changes in v1: None arch/arm/boot/dts/rk3288-veyron-jaq.dts | 37 +++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/arch/arm/boot/dts/rk3288-veyron-jaq.dts b/arch/arm/boot/dts/rk3288-veyron-jaq.dts index c2f52cf..991b717 100644 --- a/arch/arm/boot/dts/rk3288-veyron-jaq.dts +++ b/arch/arm/boot/dts/rk3288-veyron-jaq.dts @@ -88,6 +88,43 @@ }; }; +&backlight { + /* Jaq panel PWM must be >= 3%, so start non-zero brightness at 8 */ + brightness-levels = < + 0 + 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>; +}; + &rk808 { pinctrl-names = "default"; pinctrl-0 = <&pmic_int_l &dvs_1 &dvs_2>;