From patchwork Tue Mar 19 18:59:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: achew@nvidia.com X-Patchwork-Id: 2303891 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id CCC0EDFB79 for ; Tue, 19 Mar 2013 19:05:34 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1UI1o2-0001Ou-Mq; Tue, 19 Mar 2013 19:02:42 +0000 Received: from hqemgate03.nvidia.com ([216.228.121.140]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1UI1o0-0001Nx-L8 for linux-arm-kernel@lists.infradead.org; Tue, 19 Mar 2013 19:02:41 +0000 Received: from hqnvupgp07.nvidia.com (Not Verified[216.228.121.13]) by hqemgate03.nvidia.com id ; Tue, 19 Mar 2013 12:05:06 -0700 Received: from hqemhub03.nvidia.com ([172.17.108.22]) by hqnvupgp07.nvidia.com (PGP Universal service); Tue, 19 Mar 2013 11:59:45 -0700 X-PGP-Universal: processed; by hqnvupgp07.nvidia.com on Tue, 19 Mar 2013 11:59:45 -0700 Received: from achew-linux64.nvidia.com (172.20.144.16) by hqemhub03.nvidia.com (172.20.150.15) with Microsoft SMTP Server (TLS) id 8.3.298.1; Tue, 19 Mar 2013 11:59:45 -0700 From: Andrew Chew To: , , , , , , , , , , , , , , , , Subject: [PATCH V4 4/9] ARM: EXYNOS: Provide regulator to pwm-backlight Date: Tue, 19 Mar 2013 11:59:28 -0700 Message-ID: <1363719573-20926-5-git-send-email-achew@nvidia.com> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: <1363719573-20926-1-git-send-email-achew@nvidia.com> References: <1363719573-20926-1-git-send-email-achew@nvidia.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130319_150240_831238_732D367F X-CRM114-Status: GOOD ( 12.62 ) X-Spam-Score: -9.4 (---------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-9.4 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [216.228.121.140 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -2.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: linux-samsung-soc@vger.kernel.org, achew@nvidia.com, thierry.reding@avionic-design.de, openezx-devel@lists.openezx.org, acourbot@nvidia.com, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The pwm-backlight driver now takes a mandatory regulator that is gotten during driver probe. Initialize a dummy regulator to satisfy this requirement. Signed-off-by: Andrew Chew --- arch/arm/mach-exynos/mach-nuri.c | 7 +++++++ arch/arm/plat-samsung/dev-backlight.c | 9 +++++++++ 2 files changed, 16 insertions(+) diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c index 1ea7973..35e881e 100644 --- a/arch/arm/mach-exynos/mach-nuri.c +++ b/arch/arm/mach-exynos/mach-nuri.c @@ -294,6 +294,10 @@ static void nuri_bl_exit(struct device *dev) gpio_free(EXYNOS4_GPE2(3)); } +/* Dummy regulator for pwm-backlight driver */ +static struct regulator_consumer_supply backlight_supply = + REGULATOR_SUPPLY("enable", "pwm-backlight"); + /* nuri pwm backlight */ static struct platform_pwm_backlight_data nuri_backlight_data = { .pwm_id = 0, @@ -1368,6 +1372,9 @@ static void __init nuri_machine_init(void) nuri_ehci_init(); s3c_hsotg_set_platdata(&nuri_hsotg_pdata); + regulator_register_always_on(-1, "backlight-enable", + &backlight_supply, 1, 0); + /* Last */ platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices)); } diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c index 5f197dc..7277821 100644 --- a/arch/arm/plat-samsung/dev-backlight.c +++ b/arch/arm/plat-samsung/dev-backlight.c @@ -14,12 +14,18 @@ #include #include #include +#include +#include #include #include #include #include +/* Dummy regulator for pwm-backlight driver */ +static struct regulator_consumer_supply backlight_supply = + REGULATOR_SUPPLY("enable", "pwm-backlight"); + static int samsung_bl_init(struct device *dev) { int ret = 0; @@ -37,6 +43,9 @@ static int samsung_bl_init(struct device *dev) /* Configure GPIO pin with specific GPIO function for PWM timer */ s3c_gpio_cfgpin(bl_gpio_info->no, bl_gpio_info->func); + regulator_register_always_on(-1, "backlight-enable", + &backlight_supply, 1, 0); + return 0; }