From patchwork Tue Mar 12 01:54:26 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: 2252521 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 34AB73FC8F for ; Tue, 12 Mar 2013 01:54:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754767Ab3CLBy0 (ORCPT ); Mon, 11 Mar 2013 21:54:26 -0400 Received: from hqemgate03.nvidia.com ([216.228.121.140]:15952 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754615Ab3CLByZ (ORCPT ); Mon, 11 Mar 2013 21:54:25 -0400 Received: from hqnvupgp08.nvidia.com (Not Verified[216.228.121.13]) by hqemgate03.nvidia.com id ; Mon, 11 Mar 2013 18:59:36 -0700 Received: from hqemhub02.nvidia.com ([172.17.108.22]) by hqnvupgp08.nvidia.com (PGP Universal service); Mon, 11 Mar 2013 18:47:55 -0700 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Mon, 11 Mar 2013 18:47:55 -0700 Received: from achew-linux64.nvidia.com (172.20.144.16) by hqemhub02.nvidia.com (172.20.150.31) with Microsoft SMTP Server (TLS) id 8.3.298.1; Mon, 11 Mar 2013 18:54:24 -0700 From: Andrew Chew To: CC: , , , Subject: [PATCH 1/1] ARM: OMAP: board-4430sdp: Provide regulator to pwm-backlight Date: Mon, 11 Mar 2013 18:54:26 -0700 Message-ID: <1363053266-515-1-git-send-email-achew@nvidia.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.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 --- This patch, along with many more soon to follow, attempts to satisfy the new mandatory regulator that pwm-backlight will grab during probe. The only board in mach-omap2 to use the pwm-backlight appears to be the 4430sdp. I thought I'd start small and use this board as an example. I tested similar code in my Tegra board, so it should be okay. Of course, I don't have a 4430sdp to test with. arch/arm/mach-omap2/board-4430sdp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 35f3ad0..62022c0 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -291,6 +291,10 @@ static struct platform_device sdp4430_leds_pwm = { }, }; +/* Dummy regulator for pwm-backlight driver */ +static struct regulator_consumer_supply backlight_supply = + REGULATOR_SUPPLY("enable", NULL); + static struct platform_pwm_backlight_data sdp4430_backlight_data = { .max_brightness = 127, .dft_brightness = 127, @@ -718,6 +722,7 @@ static void __init omap_4430sdp_init(void) omap4_i2c_init(); omap_sfh7741prox_init(); + regulator_register_always_on(-1, "bl-enable", &backlight_supply, 1, 0); platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices)); omap_serial_init(); omap_sdrc_init(NULL, NULL);