The Komeda driver always expects the remote connector node to initialize
an encoder. It uses the component aggregator framework which consists
of component->bind() calls used to initialize the remote encoder and attach
it to the crtc. This makes it incompatible with connector drivers which
implement drm_bridge APIs.
Remove all component framework calls from the komeda driver and declare and
attach an encoder inside komeda_crtc_add().
The remote connector driver has to implement the DRM bridge APIs which
can be used to glue the encoder to the remote connector. Since we
usually pair this with a component encoder that also implements a
drm_bridge, dropping support is not expected to affect users of this
driver.
Signed-off-by: Faiz Abbas <faiz.abbas@arm.com>
Message-ID: <
20230712064937.25192-1-faiz.abbas@arm.com>
[small white space fixes flagged by checkpatch.pl]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230712064937.25192-1-faiz.abbas@arm.com
#include <drm/drm_atomic_helper.h>
#include <drm/drm_print.h>
#include <drm/drm_vblank.h>
+#include <drm/drm_simple_kms_helper.h>
+#include <drm/drm_bridge.h>
#include "komeda_dev.h"
#include "komeda_kms.h"
struct komeda_crtc *kcrtc)
{
struct drm_crtc *crtc = &kcrtc->base;
+ struct drm_device *base = &kms->base;
+ struct drm_bridge *bridge;
int err;
- err = drm_crtc_init_with_planes(&kms->base, crtc,
+ err = drm_crtc_init_with_planes(base, crtc,
get_crtc_primary(kms, kcrtc), NULL,
&komeda_crtc_funcs, NULL);
if (err)
crtc->port = kcrtc->master->of_output_port;
+ /* Construct an encoder for each pipeline and attach it to the remote
+ * bridge
+ */
+ kcrtc->encoder.possible_crtcs = drm_crtc_mask(crtc);
+ err = drm_simple_encoder_init(base, &kcrtc->encoder,
+ DRM_MODE_ENCODER_TMDS);
+ if (err)
+ return err;
+
+ bridge = devm_drm_of_get_bridge(base->dev, kcrtc->master->of_node,
+ KOMEDA_OF_PORT_OUTPUT, 0);
+ if (IS_ERR(bridge))
+ return PTR_ERR(bridge);
+
+ err = drm_bridge_attach(&kcrtc->encoder, bridge, NULL, 0);
+
drm_crtc_enable_color_mgmt(crtc, 0, true, KOMEDA_COLOR_LUT_SIZE);
return err;
#include <linux/kernel.h>
#include <linux/of.h>
#include <linux/platform_device.h>
-#include <linux/component.h>
#include <linux/pm_runtime.h>
#include <drm/drm_fbdev_generic.h>
#include <drm/drm_module.h>
return mdrv ? mdrv->mdev : NULL;
}
-static void komeda_unbind(struct device *dev)
+static void komeda_platform_remove(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct komeda_drv *mdrv = dev_get_drvdata(dev);
- if (!mdrv)
- return;
-
komeda_kms_detach(mdrv->kms);
if (pm_runtime_enabled(dev))
devm_kfree(dev, mdrv);
}
-static int komeda_bind(struct device *dev)
+static int komeda_platform_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct komeda_drv *mdrv;
int err;
return err;
}
-static const struct component_master_ops komeda_master_ops = {
- .bind = komeda_bind,
- .unbind = komeda_unbind,
-};
-
-static void komeda_add_slave(struct device *master,
- struct component_match **match,
- struct device_node *np,
- u32 port, u32 endpoint)
-{
- struct device_node *remote;
-
- remote = of_graph_get_remote_node(np, port, endpoint);
- if (remote) {
- drm_of_component_match_add(master, match, component_compare_of, remote);
- of_node_put(remote);
- }
-}
-
-static int komeda_platform_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct component_match *match = NULL;
- struct device_node *child;
-
- if (!dev->of_node)
- return -ENODEV;
-
- for_each_available_child_of_node(dev->of_node, child) {
- if (of_node_cmp(child->name, "pipeline") != 0)
- continue;
-
- /* add connector */
- komeda_add_slave(dev, &match, child, KOMEDA_OF_PORT_OUTPUT, 0);
- komeda_add_slave(dev, &match, child, KOMEDA_OF_PORT_OUTPUT, 1);
- }
-
- return component_master_add_with_match(dev, &komeda_master_ops, match);
-}
-
-static void komeda_platform_remove(struct platform_device *pdev)
-{
- component_master_del(&pdev->dev, &komeda_master_ops);
-}
-
static const struct of_device_id komeda_of_match[] = {
{ .compatible = "arm,mali-d71", .data = d71_identify, },
{ .compatible = "arm,mali-d32", .data = d71_identify, },
* Author: James.Qian.Wang <james.qian.wang@arm.com>
*
*/
-#include <linux/component.h>
#include <linux/interrupt.h>
#include <drm/drm_atomic.h>
if (err)
goto cleanup_mode_config;
- err = component_bind_all(mdev->dev, kms);
- if (err)
- goto cleanup_mode_config;
-
drm_mode_config_reset(drm);
err = devm_request_irq(drm->dev, mdev->irq,
komeda_kms_irq_handler, IRQF_SHARED,
drm->driver->name, drm);
if (err)
- goto free_component_binding;
+ goto cleanup_mode_config;
drm_kms_helper_poll_init(drm);
free_interrupts:
drm_kms_helper_poll_fini(drm);
-free_component_binding:
- component_unbind_all(mdev->dev, drm);
cleanup_mode_config:
drm_mode_config_cleanup(drm);
komeda_kms_cleanup_private_objs(kms);
void komeda_kms_detach(struct komeda_kms_dev *kms)
{
struct drm_device *drm = &kms->base;
- struct komeda_dev *mdev = drm->dev_private;
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
drm_atomic_helper_shutdown(drm);
- component_unbind_all(mdev->dev, drm);
drm_mode_config_cleanup(drm);
komeda_kms_cleanup_private_objs(kms);
drm->dev_private = NULL;
/** @disable_done: this flip_done is for tracing the disable */
struct completion *disable_done;
+
+ /** @encoder: encoder at the end of the pipeline */
+ struct drm_encoder encoder;
};
/**
projects / platform / kernel / linux-rpi.git / commitdiff