From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751263AbeAVOz2 (ORCPT ); Mon, 22 Jan 2018 09:55:28 -0500 Received: from mail-pg0-f66.google.com ([74.125.83.66]:44043 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750848AbeAVOz1 (ORCPT ); Mon, 22 Jan 2018 09:55:27 -0500 X-Google-Smtp-Source: AH8x227i2/eUCw19wPQJdVYRw1Lz5kapgEIxsc2lAG8rAo6yPQL64FBerVmttZSXoVheH4/Rm7hqAQ== Date: Mon, 22 Jan 2018 14:55:20 +0000 From: Meghana Madhyastha To: Lee Jones , Daniel Thompson , Jingoo Han , Thierry Reding , Noralf =?iso-8859-1?Q?Tr=F8nnes?= , Tomi Valkeinen , Daniel Vetter , Sean Paul , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH v18 09/10] drm/panel: Use of_find_backlight helper Message-ID: <140d01afb138d687680b2d1776a4c101c9fa9a0a.1516632388.git.meghana.madhyastha@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Replace of_find_backlight_by_node and of the code around it with of_find_backlight helper to avoid repetition of code. Signed-off-by: Meghana Madhyastha --- Changes in v18: -Fixed warnings resulting from passing device_node* to of_find_backlight. Fixed it by passing struct device* to of_find_backlight drivers/gpu/drm/panel/panel-innolux-p079zca.c | 24 ++++----------------- drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c | 28 +++++-------------------- drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c | 27 ++++-------------------- 3 files changed, 13 insertions(+), 66 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c index 4c1b29eec..57df39b5c 100644 --- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c +++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c @@ -215,7 +215,6 @@ MODULE_DEVICE_TABLE(of, innolux_of_match); static int innolux_panel_add(struct innolux_panel *innolux) { struct device *dev = &innolux->link->dev; - struct device_node *np; int err; innolux->supply = devm_regulator_get(dev, "power"); @@ -230,37 +229,22 @@ static int innolux_panel_add(struct innolux_panel *innolux) innolux->enable_gpio = NULL; } - np = of_parse_phandle(dev->of_node, "backlight", 0); - if (np) { - innolux->backlight = of_find_backlight_by_node(np); - of_node_put(np); + innolux->backlight = devm_of_find_backlight(dev); - if (!innolux->backlight) - return -EPROBE_DEFER; - } + if (IS_ERR(innolux->backlight)) + return PTR_ERR(innolux->backlight); drm_panel_init(&innolux->base); innolux->base.funcs = &innolux_panel_funcs; innolux->base.dev = &innolux->link->dev; - err = drm_panel_add(&innolux->base); - if (err < 0) - goto put_backlight; - - return 0; - -put_backlight: - put_device(&innolux->backlight->dev); - - return err; + return drm_panel_add(&innolux->base); } static void innolux_panel_del(struct innolux_panel *innolux) { if (innolux->base.dev) drm_panel_remove(&innolux->base); - - put_device(&innolux->backlight->dev); } static int innolux_panel_probe(struct mipi_dsi_device *dsi) diff --git a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c index 072c0fc79..6bf8730f1 100644 --- a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c +++ b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c @@ -318,8 +318,7 @@ MODULE_DEVICE_TABLE(of, sharp_of_match); static int sharp_panel_add(struct sharp_panel *sharp) { - struct device_node *np; - int err; + struct device *dev = &sharp->link1->dev; sharp->mode = &default_mode; @@ -327,30 +326,16 @@ static int sharp_panel_add(struct sharp_panel *sharp) if (IS_ERR(sharp->supply)) return PTR_ERR(sharp->supply); - np = of_parse_phandle(sharp->link1->dev.of_node, "backlight", 0); - if (np) { - sharp->backlight = of_find_backlight_by_node(np); - of_node_put(np); + sharp->backlight = devm_of_find_backlight(dev); - if (!sharp->backlight) - return -EPROBE_DEFER; - } + if (IS_ERR(sharp->backlight)) + return PTR_ERR(sharp->backlight); drm_panel_init(&sharp->base); sharp->base.funcs = &sharp_panel_funcs; sharp->base.dev = &sharp->link1->dev; - err = drm_panel_add(&sharp->base); - if (err < 0) - goto put_backlight; - - return 0; - -put_backlight: - if (sharp->backlight) - put_device(&sharp->backlight->dev); - - return err; + return drm_panel_add(&sharp->base); } static void sharp_panel_del(struct sharp_panel *sharp) @@ -358,9 +343,6 @@ static void sharp_panel_del(struct sharp_panel *sharp) if (sharp->base.dev) drm_panel_remove(&sharp->base); - if (sharp->backlight) - put_device(&sharp->backlight->dev); - if (sharp->link2) put_device(&sharp->link2->dev); } diff --git a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c index 8a5137963..494aa9b16 100644 --- a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c +++ b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c @@ -253,8 +253,6 @@ static const struct drm_panel_funcs sharp_nt_panel_funcs = { static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt) { struct device *dev = &sharp_nt->dsi->dev; - struct device_node *np; - int ret; sharp_nt->mode = &default_mode; @@ -271,39 +269,22 @@ static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt) gpiod_set_value(sharp_nt->reset_gpio, 0); } - np = of_parse_phandle(dev->of_node, "backlight", 0); - if (np) { - sharp_nt->backlight = of_find_backlight_by_node(np); - of_node_put(np); + sharp_nt->backlight = devm_of_find_backlight(dev); - if (!sharp_nt->backlight) - return -EPROBE_DEFER; - } + if (IS_ERR(sharp_nt->backlight)) + return PTR_ERR(sharp_nt->backlight); drm_panel_init(&sharp_nt->base); sharp_nt->base.funcs = &sharp_nt_panel_funcs; sharp_nt->base.dev = &sharp_nt->dsi->dev; - ret = drm_panel_add(&sharp_nt->base); - if (ret < 0) - goto put_backlight; - - return 0; - -put_backlight: - if (sharp_nt->backlight) - put_device(&sharp_nt->backlight->dev); - - return ret; + return drm_panel_add(&sharp_nt->base); } static void sharp_nt_panel_del(struct sharp_nt_panel *sharp_nt) { if (sharp_nt->base.dev) drm_panel_remove(&sharp_nt->base); - - if (sharp_nt->backlight) - put_device(&sharp_nt->backlight->dev); } static int sharp_nt_panel_probe(struct mipi_dsi_device *dsi) -- 2.11.0