From patchwork Wed Jun 5 05:59:21 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Shiyan X-Patchwork-Id: 2665171 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) by patchwork2.kernel.org (Postfix) with ESMTP id A72A6DF264 for ; Wed, 5 Jun 2013 06:12:57 +0000 (UTC) Received: from merlin.infradead.org ([205.233.59.134]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uk6vg-0002mx-N9; Wed, 05 Jun 2013 06:10:45 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uk6nz-000679-N4; Wed, 05 Jun 2013 06:02:43 +0000 Received: from smtp4.mail.ru ([94.100.176.44]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Uk6mO-0005uB-5T for linux-arm-kernel@lists.infradead.org; Wed, 05 Jun 2013 06:01:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mail.ru; s=mail2; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=3w6DYIb+tbH3XeFnH0g34P5+eqWP85esZyB+u741T+4=; b=oj5iKL1gb+amcKokIbOWtYzsvbaHa138a9vlZSv5F4lKgoG44Bkrj9N3DfXIrJ1bWwpOo3kBmT5l58YUieXDv+yaBcpImmgWC2vWeRG9TbYZVuzS1kyORqDvXdgpStz20I58N3rUAzYPBl4/uhMIbVdiKVCwbRNws90jl/dgcZo=; Received: from [188.134.40.128] (port=27813 helo=shc.zet) by smtp4.mail.ru with esmtpa (envelope-from ) id 1Uk6m2-0007yf-LA; Wed, 05 Jun 2013 10:00:42 +0400 From: Alexander Shiyan To: linux-arm-kernel@lists.infradead.org Subject: [PATCH RESEND 13/15] ARM: clps711x: edb7211: Control LCD backlight via PWM Date: Wed, 5 Jun 2013 09:59:21 +0400 Message-Id: <1370411967-29451-14-git-send-email-shc_work@mail.ru> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: <1370411967-29451-1-git-send-email-shc_work@mail.ru> References: <1370411967-29451-1-git-send-email-shc_work@mail.ru> X-Spam: Not detected X-Mras: Ok X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130605_020104_642251_9186370E X-CRM114-Status: GOOD ( 10.03 ) X-Spam-Score: -2.0 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [94.100.176.44 listed in list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (shc_work[at]mail.ru) -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Cc: Olof Johansson , Russell King , Alexander Shiyan , Arnd Bergmann X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch provide control LCD backlight via PWM. GPIO is used only for switch backlight ON and OFF. Signed-off-by: Alexander Shiyan --- arch/arm/mach-clps711x/board-edb7211.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-clps711x/board-edb7211.c b/arch/arm/mach-clps711x/board-edb7211.c index 970f4e1..9dfb990 100644 --- a/arch/arm/mach-clps711x/board-edb7211.c +++ b/arch/arm/mach-clps711x/board-edb7211.c @@ -109,13 +109,14 @@ static struct plat_lcd_data edb7211_lcd_power_pdata = { static void edb7211_lcd_backlight_set_intensity(int intensity) { - gpio_set_value(EDB7211_LCDBL, intensity); + gpio_set_value(EDB7211_LCDBL, !!intensity); + clps_writel((clps_readl(PMPCON) & 0xf0ff) | (intensity << 8), PMPCON); } static struct generic_bl_info edb7211_lcd_backlight_pdata = { .name = "lcd-backlight.0", .default_intensity = 0x01, - .max_intensity = 0x01, + .max_intensity = 0x0f, .set_bl_intensity = edb7211_lcd_backlight_set_intensity, };