From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/gpu/drm/sun4i/sun4i_lvds.c | 55 ++++++++++++++++++-------------------------------------
1 files changed, 18 insertions(+), 37 deletions(-)
diff --git a/kernel/drivers/gpu/drm/sun4i/sun4i_lvds.c b/kernel/drivers/gpu/drm/sun4i/sun4i_lvds.c
index af7dcb6..ac57043 100644
--- a/kernel/drivers/gpu/drm/sun4i/sun4i_lvds.c
+++ b/kernel/drivers/gpu/drm/sun4i/sun4i_lvds.c
@@ -6,11 +6,13 @@
#include <linux/clk.h>
-#include <drm/drmP.h>
#include <drm/drm_atomic_helper.h>
-#include <drm/drm_crtc_helper.h>
+#include <drm/drm_bridge.h>
#include <drm/drm_of.h>
#include <drm/drm_panel.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
#include "sun4i_crtc.h"
#include "sun4i_tcon.h"
@@ -20,7 +22,7 @@
struct drm_connector connector;
struct drm_encoder encoder;
- struct sun4i_tcon *tcon;
+ struct drm_panel *panel;
};
static inline struct sun4i_lvds *
@@ -41,22 +43,17 @@
{
struct sun4i_lvds *lvds =
drm_connector_to_sun4i_lvds(connector);
- struct sun4i_tcon *tcon = lvds->tcon;
- return drm_panel_get_modes(tcon->panel);
+ return drm_panel_get_modes(lvds->panel, connector);
}
-static struct drm_connector_helper_funcs sun4i_lvds_con_helper_funcs = {
+static const struct drm_connector_helper_funcs sun4i_lvds_con_helper_funcs = {
.get_modes = sun4i_lvds_get_modes,
};
static void
sun4i_lvds_connector_destroy(struct drm_connector *connector)
{
- struct sun4i_lvds *lvds = drm_connector_to_sun4i_lvds(connector);
- struct sun4i_tcon *tcon = lvds->tcon;
-
- drm_panel_detach(tcon->panel);
drm_connector_cleanup(connector);
}
@@ -71,36 +68,30 @@
static void sun4i_lvds_encoder_enable(struct drm_encoder *encoder)
{
struct sun4i_lvds *lvds = drm_encoder_to_sun4i_lvds(encoder);
- struct sun4i_tcon *tcon = lvds->tcon;
DRM_DEBUG_DRIVER("Enabling LVDS output\n");
- if (!IS_ERR(tcon->panel)) {
- drm_panel_prepare(tcon->panel);
- drm_panel_enable(tcon->panel);
+ if (lvds->panel) {
+ drm_panel_prepare(lvds->panel);
+ drm_panel_enable(lvds->panel);
}
}
static void sun4i_lvds_encoder_disable(struct drm_encoder *encoder)
{
struct sun4i_lvds *lvds = drm_encoder_to_sun4i_lvds(encoder);
- struct sun4i_tcon *tcon = lvds->tcon;
DRM_DEBUG_DRIVER("Disabling LVDS output\n");
- if (!IS_ERR(tcon->panel)) {
- drm_panel_disable(tcon->panel);
- drm_panel_unprepare(tcon->panel);
+ if (lvds->panel) {
+ drm_panel_disable(lvds->panel);
+ drm_panel_unprepare(lvds->panel);
}
}
static const struct drm_encoder_helper_funcs sun4i_lvds_enc_helper_funcs = {
.disable = sun4i_lvds_encoder_disable,
.enable = sun4i_lvds_encoder_enable,
-};
-
-static const struct drm_encoder_funcs sun4i_lvds_enc_funcs = {
- .destroy = drm_encoder_cleanup,
};
int sun4i_lvds_init(struct drm_device *drm, struct sun4i_tcon *tcon)
@@ -113,11 +104,10 @@
lvds = devm_kzalloc(drm->dev, sizeof(*lvds), GFP_KERNEL);
if (!lvds)
return -ENOMEM;
- lvds->tcon = tcon;
encoder = &lvds->encoder;
ret = drm_of_find_panel_or_bridge(tcon->dev->of_node, 1, 0,
- &tcon->panel, &bridge);
+ &lvds->panel, &bridge);
if (ret) {
dev_info(drm->dev, "No panel or bridge found... LVDS output disabled\n");
return 0;
@@ -125,11 +115,8 @@
drm_encoder_helper_add(&lvds->encoder,
&sun4i_lvds_enc_helper_funcs);
- ret = drm_encoder_init(drm,
- &lvds->encoder,
- &sun4i_lvds_enc_funcs,
- DRM_MODE_ENCODER_LVDS,
- NULL);
+ ret = drm_simple_encoder_init(drm, &lvds->encoder,
+ DRM_MODE_ENCODER_LVDS);
if (ret) {
dev_err(drm->dev, "Couldn't initialise the lvds encoder\n");
goto err_out;
@@ -138,7 +125,7 @@
/* The LVDS encoder can only work with the TCON channel 0 */
lvds->encoder.possible_crtcs = drm_crtc_mask(&tcon->crtc->crtc);
- if (tcon->panel) {
+ if (lvds->panel) {
drm_connector_helper_add(&lvds->connector,
&sun4i_lvds_con_helper_funcs);
ret = drm_connector_init(drm, &lvds->connector,
@@ -151,16 +138,10 @@
drm_connector_attach_encoder(&lvds->connector,
&lvds->encoder);
-
- ret = drm_panel_attach(tcon->panel, &lvds->connector);
- if (ret) {
- dev_err(drm->dev, "Couldn't attach our panel\n");
- goto err_cleanup_connector;
- }
}
if (bridge) {
- ret = drm_bridge_attach(encoder, bridge, NULL);
+ ret = drm_bridge_attach(encoder, bridge, NULL, 0);
if (ret) {
dev_err(drm->dev, "Couldn't attach our bridge\n");
goto err_cleanup_connector;
--
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