diff options
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_panel.c')
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_panel.c | 77 |
1 files changed, 24 insertions, 53 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c index a1acab39d87f..262f290d85d9 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c @@ -1,28 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2012 Texas Instruments * Author: Rob Clark <robdclark@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/pinctrl/pinmux.h> -#include <linux/pinctrl/consumer.h> #include <linux/backlight.h> #include <linux/gpio/consumer.h> +#include <linux/platform_device.h> + #include <video/display_timing.h> #include <video/of_display_timing.h> #include <video/videomode.h> -#include <drm/drm_atomic_helper.h> + +#include <drm/drm_atomic_state_helper.h> +#include <drm/drm_connector.h> +#include <drm/drm_modeset_helper_vtables.h> +#include <drm/drm_probe_helper.h> +#include <drm/drm_simple_kms_helper.h> #include "tilcdc_drv.h" #include "tilcdc_panel.h" @@ -55,7 +49,7 @@ static void panel_encoder_dpms(struct drm_encoder *encoder, int mode) if (backlight) { backlight->props.power = mode == DRM_MODE_DPMS_ON ? - FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; + BACKLIGHT_POWER_ON : BACKLIGHT_POWER_OFF; backlight_update_status(backlight); } @@ -81,10 +75,6 @@ static void panel_encoder_mode_set(struct drm_encoder *encoder, /* nothing needed */ } -static const struct drm_encoder_funcs panel_encoder_funcs = { - .destroy = drm_encoder_cleanup, -}; - static const struct drm_encoder_helper_funcs panel_encoder_helper_funcs = { .dpms = panel_encoder_dpms, .prepare = panel_encoder_prepare, @@ -109,8 +99,7 @@ static struct drm_encoder *panel_encoder_create(struct drm_device *dev, encoder = &panel_encoder->base; encoder->possible_crtcs = 1; - ret = drm_encoder_init(dev, encoder, &panel_encoder_funcs, - DRM_MODE_ENCODER_LVDS, NULL); + ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_LVDS); if (ret < 0) goto fail; @@ -150,12 +139,16 @@ static int panel_connector_get_modes(struct drm_connector *connector) int i; for (i = 0; i < timings->num_timings; i++) { - struct drm_display_mode *mode = drm_mode_create(dev); + struct drm_display_mode *mode; struct videomode vm; if (videomode_from_timings(timings, &vm, i)) break; + mode = drm_mode_create(dev); + if (!mode) + break; + drm_display_mode_from_videomode(&vm, mode); mode->type = DRM_MODE_TYPE_DRIVER; @@ -170,14 +163,6 @@ static int panel_connector_get_modes(struct drm_connector *connector) return i; } -static int panel_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct tilcdc_drm_private *priv = connector->dev->dev_private; - /* our only constraints are what the crtc can generate: */ - return tilcdc_crtc_mode_valid(priv->crtc, mode); -} - static struct drm_encoder *panel_connector_best_encoder( struct drm_connector *connector) { @@ -195,7 +180,6 @@ static const struct drm_connector_funcs panel_connector_funcs = { static const struct drm_connector_helper_funcs panel_connector_helper_funcs = { .get_modes = panel_connector_get_modes, - .mode_valid = panel_connector_mode_valid, .best_encoder = panel_connector_best_encoder, }; @@ -319,10 +303,10 @@ put_node: static int panel_probe(struct platform_device *pdev) { - struct device_node *bl_node, *node = pdev->dev.of_node; + struct device_node *node = pdev->dev.of_node; + struct backlight_device *backlight; struct panel_module *panel_mod; struct tilcdc_module *mod; - struct pinctrl *pinctrl; int ret; /* bail out early if no DT data: */ @@ -335,16 +319,10 @@ static int panel_probe(struct platform_device *pdev) if (!panel_mod) return -ENOMEM; - bl_node = of_parse_phandle(node, "backlight", 0); - if (bl_node) { - panel_mod->backlight = of_find_backlight_by_node(bl_node); - of_node_put(bl_node); - - if (!panel_mod->backlight) - return -EPROBE_DEFER; - - dev_info(&pdev->dev, "found backlight\n"); - } + backlight = devm_of_find_backlight(&pdev->dev); + if (IS_ERR(backlight)) + return PTR_ERR(backlight); + panel_mod->backlight = backlight; panel_mod->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable", GPIOD_OUT_LOW); @@ -362,10 +340,6 @@ static int panel_probe(struct platform_device *pdev) tilcdc_module_init(mod, "panel", &panel_module_ops); - pinctrl = devm_pinctrl_get_select_default(&pdev->dev); - if (IS_ERR(pinctrl)) - dev_warn(&pdev->dev, "pins are not configured\n"); - panel_mod->timings = of_get_display_timings(node); if (!panel_mod->timings) { dev_err(&pdev->dev, "could not get panel timings\n"); @@ -394,7 +368,7 @@ fail_backlight: return ret; } -static int panel_remove(struct platform_device *pdev) +static void panel_remove(struct platform_device *pdev) { struct tilcdc_module *mod = dev_get_platdata(&pdev->dev); struct panel_module *panel_mod = to_panel_module(mod); @@ -407,8 +381,6 @@ static int panel_remove(struct platform_device *pdev) tilcdc_module_cleanup(mod); kfree(panel_mod->info); - - return 0; } static const struct of_device_id panel_of_match[] = { @@ -416,11 +388,10 @@ static const struct of_device_id panel_of_match[] = { { }, }; -struct platform_driver panel_driver = { +static struct platform_driver panel_driver = { .probe = panel_probe, .remove = panel_remove, .driver = { - .owner = THIS_MODULE, .name = "tilcdc-panel", .of_match_table = panel_of_match, }, |