[PATCH v2 2/7] drm/sun4i: Move panel retrieval in RGB connector
From: Maxime Ripard <hidden>
Date: 2016-07-20 09:58:52
Also in:
dri-devel, linux-arm-kernel
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for allwinner a10, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Chen-Yu Tsai, Linus Torvalds
In order to properly support bridges and use drm_encoder's bridge pointer, move the panel (and bridge eventually) retrieval code in the RGB output init function. Signed-off-by: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> --- drivers/gpu/drm/sun4i/sun4i_rgb.c | 10 ++++++---- drivers/gpu/drm/sun4i/sun4i_tcon.c | 8 +------- drivers/gpu/drm/sun4i/sun4i_tcon.h | 2 ++ 3 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/drivers/gpu/drm/sun4i/sun4i_rgb.c b/drivers/gpu/drm/sun4i/sun4i_rgb.c
index f5bbac6efb4c..d32f08f9ce5f 100644
--- a/drivers/gpu/drm/sun4i/sun4i_rgb.c
+++ b/drivers/gpu/drm/sun4i/sun4i_rgb.c@@ -206,15 +206,17 @@ int sun4i_rgb_init(struct drm_device *drm) struct sun4i_rgb *rgb; int ret; - /* If we don't have a panel, there's no point in going on */ - if (IS_ERR(tcon->panel)) - return -ENODEV; - rgb = devm_kzalloc(drm->dev, sizeof(*rgb), GFP_KERNEL); if (!rgb) return -ENOMEM; rgb->drv = drv; + tcon->panel = sun4i_tcon_find_panel(tcon->dev->of_node); + if (IS_ERR(tcon->panel)) { + dev_info(drm->dev, "No panel found... RGB output disabled\n"); + return 0; + } + drm_encoder_helper_add(&rgb->encoder, &sun4i_rgb_enc_helper_funcs); ret = drm_encoder_init(drm,
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index af136dfc206e..d2f7489d29a5 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c@@ -398,7 +398,7 @@ static int sun4i_tcon_init_regmap(struct device *dev, return 0; } -static struct drm_panel *sun4i_tcon_find_panel(struct device_node *node) +struct drm_panel *sun4i_tcon_find_panel(struct device_node *node) { struct device_node *port, *remote, *child; struct device_node *end_node = NULL;
@@ -485,12 +485,6 @@ static int sun4i_tcon_bind(struct device *dev, struct device *master, goto err_free_clocks; } - tcon->panel = sun4i_tcon_find_panel(dev->of_node); - if (IS_ERR(tcon->panel)) { - dev_info(dev, "No panel found... RGB output disabled\n"); - return 0; - } - ret = sun4i_rgb_init(drm); if (ret < 0) goto err_free_clocks;
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.h b/drivers/gpu/drm/sun4i/sun4i_tcon.h
index 230550b720f1..4f81d86ee5a4 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.h
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.h@@ -166,6 +166,8 @@ struct sun4i_tcon { struct drm_panel *panel; }; +struct drm_panel *sun4i_tcon_find_panel(struct device_node *node); + /* Global Control */ void sun4i_tcon_disable(struct sun4i_tcon *tcon); void sun4i_tcon_enable(struct sun4i_tcon *tcon);
--
2.9.0
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