Commit a7ccc5a4 authored by Dave Airlie's avatar Dave Airlie

Merge branch 'drm-tda998x-devel' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next

From: Russell King <rmk@armlinux.org.uk>
As per the patches posted, discussed and tested by Peter Rosin, this
converts TDA998x to a bridge driver, while still allowing Armada and
TI LCDC to continue using it as they always have done.  It also gets
rid of the private .fill_modes function, and tweaks the TMDS divider
calculation to be more correct to the available information.

[airlied: fixed two conflicts]
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180802093421.GA29670@rmk-PC.armlinux.org.uk
parents 25326590 926a299c
......@@ -69,6 +69,7 @@ struct tda998x_priv {
bool edid_delay_active;
struct drm_encoder encoder;
struct drm_bridge bridge;
struct drm_connector connector;
struct tda998x_audio_port audio_port[2];
......@@ -79,9 +80,10 @@ struct tda998x_priv {
#define conn_to_tda998x_priv(x) \
container_of(x, struct tda998x_priv, connector)
#define enc_to_tda998x_priv(x) \
container_of(x, struct tda998x_priv, encoder)
#define bridge_to_tda998x_priv(x) \
container_of(x, struct tda998x_priv, bridge)
/* The TDA9988 series of devices use a paged register scheme.. to simplify
* things we encode the page # in upper bits of the register #. To read/
......@@ -762,7 +764,7 @@ static void tda998x_detect_work(struct work_struct *work)
{
struct tda998x_priv *priv =
container_of(work, struct tda998x_priv, detect_work);
struct drm_device *dev = priv->encoder.dev;
struct drm_device *dev = priv->connector.dev;
if (dev)
drm_kms_helper_hotplug_event(dev);
......@@ -1104,29 +1106,6 @@ static int tda998x_audio_codec_init(struct tda998x_priv *priv,
/* DRM connector functions */
static int tda998x_connector_fill_modes(struct drm_connector *connector,
uint32_t maxX, uint32_t maxY)
{
struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
int ret;
mutex_lock(&priv->audio_mutex);
ret = drm_helper_probe_single_connector_modes(connector, maxX, maxY);
if (connector->edid_blob_ptr) {
struct edid *edid = (void *)connector->edid_blob_ptr->data;
cec_notifier_set_phys_addr_from_edid(priv->cec_notify, edid);
priv->sink_has_audio = drm_detect_monitor_audio(edid);
} else {
priv->sink_has_audio = false;
}
mutex_unlock(&priv->audio_mutex);
return ret;
}
static enum drm_connector_status
tda998x_connector_detect(struct drm_connector *connector, bool force)
{
......@@ -1145,7 +1124,7 @@ static void tda998x_connector_destroy(struct drm_connector *connector)
static const struct drm_connector_funcs tda998x_connector_funcs = {
.dpms = drm_helper_connector_dpms,
.reset = drm_atomic_helper_connector_reset,
.fill_modes = tda998x_connector_fill_modes,
.fill_modes = drm_helper_probe_single_connector_modes,
.detect = tda998x_connector_detect,
.destroy = tda998x_connector_destroy,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
......@@ -1244,40 +1223,29 @@ static int tda998x_connector_get_modes(struct drm_connector *connector)
}
drm_connector_update_edid_property(connector, edid);
cec_notifier_set_phys_addr_from_edid(priv->cec_notify, edid);
mutex_lock(&priv->audio_mutex);
n = drm_add_edid_modes(connector, edid);
priv->sink_has_audio = drm_detect_monitor_audio(edid);
mutex_unlock(&priv->audio_mutex);
kfree(edid);
return n;
}
static enum drm_mode_status tda998x_connector_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
/* TDA19988 dotclock can go up to 165MHz */
struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
if (mode->clock > ((priv->rev == TDA19988) ? 165000 : 150000))
return MODE_CLOCK_HIGH;
if (mode->htotal >= BIT(13))
return MODE_BAD_HVALUE;
if (mode->vtotal >= BIT(11))
return MODE_BAD_VVALUE;
return MODE_OK;
}
static struct drm_encoder *
tda998x_connector_best_encoder(struct drm_connector *connector)
{
struct tda998x_priv *priv = conn_to_tda998x_priv(connector);
return &priv->encoder;
return priv->bridge.encoder;
}
static
const struct drm_connector_helper_funcs tda998x_connector_helper_funcs = {
.get_modes = tda998x_connector_get_modes,
.mode_valid = tda998x_connector_mode_valid,
.best_encoder = tda998x_connector_best_encoder,
};
......@@ -1301,25 +1269,48 @@ static int tda998x_connector_init(struct tda998x_priv *priv,
if (ret)
return ret;
drm_connector_attach_encoder(&priv->connector, &priv->encoder);
drm_connector_attach_encoder(&priv->connector,
priv->bridge.encoder);
return 0;
}
/* DRM encoder functions */
/* DRM bridge functions */
static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
static int tda998x_bridge_attach(struct drm_bridge *bridge)
{
struct tda998x_priv *priv = enc_to_tda998x_priv(encoder);
bool on;
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
/* we only care about on or off: */
on = mode == DRM_MODE_DPMS_ON;
return tda998x_connector_init(priv, bridge->dev);
}
if (on == priv->is_on)
return;
static void tda998x_bridge_detach(struct drm_bridge *bridge)
{
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
if (on) {
drm_connector_cleanup(&priv->connector);
}
static enum drm_mode_status tda998x_bridge_mode_valid(struct drm_bridge *bridge,
const struct drm_display_mode *mode)
{
/* TDA19988 dotclock can go up to 165MHz */
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
if (mode->clock > ((priv->rev == TDA19988) ? 165000 : 150000))
return MODE_CLOCK_HIGH;
if (mode->htotal >= BIT(13))
return MODE_BAD_HVALUE;
if (mode->vtotal >= BIT(11))
return MODE_BAD_VVALUE;
return MODE_OK;
}
static void tda998x_bridge_enable(struct drm_bridge *bridge)
{
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
if (!priv->is_on) {
/* enable video ports, audio will be enabled later */
reg_write(priv, REG_ENA_VP_0, 0xff);
reg_write(priv, REG_ENA_VP_1, 0xff);
......@@ -1330,7 +1321,14 @@ static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
reg_write(priv, REG_VIP_CNTRL_2, priv->vip_cntrl_2);
priv->is_on = true;
} else {
}
}
static void tda998x_bridge_disable(struct drm_bridge *bridge)
{
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
if (priv->is_on) {
/* disable video ports */
reg_write(priv, REG_ENA_VP_0, 0x00);
reg_write(priv, REG_ENA_VP_1, 0x00);
......@@ -1340,12 +1338,12 @@ static void tda998x_encoder_dpms(struct drm_encoder *encoder, int mode)
}
}
static void
tda998x_encoder_mode_set(struct drm_encoder *encoder,
static void tda998x_bridge_mode_set(struct drm_bridge *bridge,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct tda998x_priv *priv = enc_to_tda998x_priv(encoder);
struct tda998x_priv *priv = bridge_to_tda998x_priv(bridge);
unsigned long tmds_clock;
u16 ref_pix, ref_line, n_pix, n_line;
u16 hs_pix_s, hs_pix_e;
u16 vs1_pix_s, vs1_pix_e, vs1_line_s, vs1_line_e;
......@@ -1416,12 +1414,19 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
(mode->vsync_end - mode->vsync_start)/2;
}
div = 148500 / mode->clock;
if (div != 0) {
div--;
if (div > 3)
div = 3;
}
tmds_clock = mode->clock;
/*
* The divisor is power-of-2. The TDA9983B datasheet gives
* this as ranges of Msample/s, which is 10x the TMDS clock:
* 0 - 800 to 1500 Msample/s
* 1 - 400 to 800 Msample/s
* 2 - 200 to 400 Msample/s
* 3 - as 2 above
*/
for (div = 0; div < 3; div++)
if (80000 >> div <= tmds_clock)
break;
mutex_lock(&priv->audio_mutex);
......@@ -1552,26 +1557,14 @@ tda998x_encoder_mode_set(struct drm_encoder *encoder,
mutex_unlock(&priv->audio_mutex);
}
static void tda998x_destroy(struct tda998x_priv *priv)
{
/* disable all IRQs and free the IRQ handler */
cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
reg_clear(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
if (priv->audio_pdev)
platform_device_unregister(priv->audio_pdev);
if (priv->hdmi->irq)
free_irq(priv->hdmi->irq, priv);
del_timer_sync(&priv->edid_delay_timer);
cancel_work_sync(&priv->detect_work);
i2c_unregister_device(priv->cec);
if (priv->cec_notify)
cec_notifier_put(priv->cec_notify);
}
static const struct drm_bridge_funcs tda998x_bridge_funcs = {
.attach = tda998x_bridge_attach,
.detach = tda998x_bridge_detach,
.mode_valid = tda998x_bridge_mode_valid,
.disable = tda998x_bridge_disable,
.mode_set = tda998x_bridge_mode_set,
.enable = tda998x_bridge_enable,
};
/* I2C driver functions */
......@@ -1617,16 +1610,69 @@ static int tda998x_get_audio_ports(struct tda998x_priv *priv,
return 0;
}
static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
static void tda998x_set_config(struct tda998x_priv *priv,
const struct tda998x_encoder_params *p)
{
priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(p->swap_a) |
(p->mirr_a ? VIP_CNTRL_0_MIRR_A : 0) |
VIP_CNTRL_0_SWAP_B(p->swap_b) |
(p->mirr_b ? VIP_CNTRL_0_MIRR_B : 0);
priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(p->swap_c) |
(p->mirr_c ? VIP_CNTRL_1_MIRR_C : 0) |
VIP_CNTRL_1_SWAP_D(p->swap_d) |
(p->mirr_d ? VIP_CNTRL_1_MIRR_D : 0);
priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(p->swap_e) |
(p->mirr_e ? VIP_CNTRL_2_MIRR_E : 0) |
VIP_CNTRL_2_SWAP_F(p->swap_f) |
(p->mirr_f ? VIP_CNTRL_2_MIRR_F : 0);
priv->audio_params = p->audio_params;
}
static void tda998x_destroy(struct device *dev)
{
struct tda998x_priv *priv = dev_get_drvdata(dev);
drm_bridge_remove(&priv->bridge);
/* disable all IRQs and free the IRQ handler */
cec_write(priv, REG_CEC_RXSHPDINTENA, 0);
reg_clear(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
if (priv->audio_pdev)
platform_device_unregister(priv->audio_pdev);
if (priv->hdmi->irq)
free_irq(priv->hdmi->irq, priv);
del_timer_sync(&priv->edid_delay_timer);
cancel_work_sync(&priv->detect_work);
i2c_unregister_device(priv->cec);
if (priv->cec_notify)
cec_notifier_put(priv->cec_notify);
}
static int tda998x_create(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct device_node *np = client->dev.of_node;
struct i2c_board_info cec_info;
struct tda998x_priv *priv;
u32 video;
int rev_lo, rev_hi, ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
dev_set_drvdata(dev, priv);
mutex_init(&priv->mutex); /* protect the page access */
mutex_init(&priv->audio_mutex); /* protect access from audio thread */
mutex_init(&priv->edid_mutex);
INIT_LIST_HEAD(&priv->bridge.list);
init_waitqueue_head(&priv->edid_delay_waitq);
timer_setup(&priv->edid_delay_timer, tda998x_edid_delay_done, 0);
INIT_WORK(&priv->detect_work, tda998x_detect_work);
......@@ -1649,13 +1695,13 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
/* read version: */
rev_lo = reg_read(priv, REG_VERSION_LSB);
if (rev_lo < 0) {
dev_err(&client->dev, "failed to read version: %d\n", rev_lo);
dev_err(dev, "failed to read version: %d\n", rev_lo);
return rev_lo;
}
rev_hi = reg_read(priv, REG_VERSION_MSB);
if (rev_hi < 0) {
dev_err(&client->dev, "failed to read version: %d\n", rev_hi);
dev_err(dev, "failed to read version: %d\n", rev_hi);
return rev_hi;
}
......@@ -1666,20 +1712,19 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
switch (priv->rev) {
case TDA9989N2:
dev_info(&client->dev, "found TDA9989 n2");
dev_info(dev, "found TDA9989 n2");
break;
case TDA19989:
dev_info(&client->dev, "found TDA19989");
dev_info(dev, "found TDA19989");
break;
case TDA19989N2:
dev_info(&client->dev, "found TDA19989 n2");
dev_info(dev, "found TDA19989 n2");
break;
case TDA19988:
dev_info(&client->dev, "found TDA19988");
dev_info(dev, "found TDA19988");
break;
default:
dev_err(&client->dev, "found unsupported device: %04x\n",
priv->rev);
dev_err(dev, "found unsupported device: %04x\n", priv->rev);
return -ENXIO;
}
......@@ -1722,8 +1767,7 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
tda998x_irq_thread, irq_flags,
"tda998x", priv);
if (ret) {
dev_err(&client->dev,
"failed to request IRQ#%u: %d\n",
dev_err(dev, "failed to request IRQ#%u: %d\n",
client->irq, ret);
goto err_irq;
}
......@@ -1732,13 +1776,13 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
cec_write(priv, REG_CEC_RXSHPDINTENA, CEC_RXSHPDLEV_HPD);
}
priv->cec_notify = cec_notifier_get(&client->dev);
priv->cec_notify = cec_notifier_get(dev);
if (!priv->cec_notify) {
ret = -ENOMEM;
goto fail;
}
priv->cec_glue.parent = &client->dev;
priv->cec_glue.parent = dev;
priv->cec_glue.data = priv;
priv->cec_glue.init = tda998x_cec_hook_init;
priv->cec_glue.exit = tda998x_cec_hook_exit;
......@@ -1768,9 +1812,7 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
/* enable EDID read irq: */
reg_set(priv, REG_INT_FLAGS_2, INT_FLAGS_2_EDID_BLK_RD);
if (!np)
return 0; /* non-DT */
if (np) {
/* get the device tree parameters */
ret = of_property_read_u32(np, "video-ports", &video);
if (ret == 0) {
......@@ -1785,44 +1827,29 @@ static int tda998x_create(struct i2c_client *client, struct tda998x_priv *priv)
if (priv->audio_port[0].format != AFMT_UNUSED)
tda998x_audio_codec_init(priv, &client->dev);
} else if (dev->platform_data) {
tda998x_set_config(priv, dev->platform_data);
}
priv->bridge.funcs = &tda998x_bridge_funcs;
#ifdef CONFIG_OF
priv->bridge.of_node = dev->of_node;
#endif
drm_bridge_add(&priv->bridge);
return 0;
fail:
/* if encoder_init fails, the encoder slave is never registered,
* so cleanup here:
*/
i2c_unregister_device(priv->cec);
if (priv->cec_notify)
cec_notifier_put(priv->cec_notify);
if (client->irq)
free_irq(client->irq, priv);
tda998x_destroy(dev);
err_irq:
return ret;
}
static void tda998x_encoder_prepare(struct drm_encoder *encoder)
{
tda998x_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
}
static void tda998x_encoder_commit(struct drm_encoder *encoder)
{
tda998x_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
}
static const struct drm_encoder_helper_funcs tda998x_encoder_helper_funcs = {
.dpms = tda998x_encoder_dpms,
.prepare = tda998x_encoder_prepare,
.commit = tda998x_encoder_commit,
.mode_set = tda998x_encoder_mode_set,
};
/* DRM encoder functions */
static void tda998x_encoder_destroy(struct drm_encoder *encoder)
{
struct tda998x_priv *priv = enc_to_tda998x_priv(encoder);
tda998x_destroy(priv);
drm_encoder_cleanup(encoder);
}
......@@ -1830,40 +1857,12 @@ static const struct drm_encoder_funcs tda998x_encoder_funcs = {
.destroy = tda998x_encoder_destroy,
};
static void tda998x_set_config(struct tda998x_priv *priv,
const struct tda998x_encoder_params *p)
{
priv->vip_cntrl_0 = VIP_CNTRL_0_SWAP_A(p->swap_a) |
(p->mirr_a ? VIP_CNTRL_0_MIRR_A : 0) |
VIP_CNTRL_0_SWAP_B(p->swap_b) |
(p->mirr_b ? VIP_CNTRL_0_MIRR_B : 0);
priv->vip_cntrl_1 = VIP_CNTRL_1_SWAP_C(p->swap_c) |
(p->mirr_c ? VIP_CNTRL_1_MIRR_C : 0) |
VIP_CNTRL_1_SWAP_D(p->swap_d) |
(p->mirr_d ? VIP_CNTRL_1_MIRR_D : 0);
priv->vip_cntrl_2 = VIP_CNTRL_2_SWAP_E(p->swap_e) |
(p->mirr_e ? VIP_CNTRL_2_MIRR_E : 0) |
VIP_CNTRL_2_SWAP_F(p->swap_f) |
(p->mirr_f ? VIP_CNTRL_2_MIRR_F : 0);
priv->audio_params = p->audio_params;
}
static int tda998x_bind(struct device *dev, struct device *master, void *data)
static int tda998x_encoder_init(struct device *dev, struct drm_device *drm)
{
struct tda998x_encoder_params *params = dev->platform_data;
struct i2c_client *client = to_i2c_client(dev);
struct drm_device *drm = data;
struct tda998x_priv *priv;
struct tda998x_priv *priv = dev_get_drvdata(dev);
u32 crtcs = 0;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
dev_set_drvdata(dev, priv);
if (dev->of_node)
crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
......@@ -1875,40 +1874,36 @@ static int tda998x_bind(struct device *dev, struct device *master, void *data)
priv->encoder.possible_crtcs = crtcs;
ret = tda998x_create(client, priv);
if (ret)
return ret;
if (!dev->of_node && params)
tda998x_set_config(priv, params);
drm_encoder_helper_add(&priv->encoder, &tda998x_encoder_helper_funcs);
ret = drm_encoder_init(drm, &priv->encoder, &tda998x_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
if (ret)
goto err_encoder;
ret = tda998x_connector_init(priv, drm);
ret = drm_bridge_attach(&priv->encoder, &priv->bridge, NULL);
if (ret)
goto err_connector;
goto err_bridge;
return 0;
err_connector:
err_bridge:
drm_encoder_cleanup(&priv->encoder);
err_encoder:
tda998x_destroy(priv);
return ret;
}
static int tda998x_bind(struct device *dev, struct device *master, void *data)
{
struct drm_device *drm = data;
return tda998x_encoder_init(dev, drm);
}
static void tda998x_unbind(struct device *dev, struct device *master,
void *data)
{
struct tda998x_priv *priv = dev_get_drvdata(dev);
drm_connector_cleanup(&priv->connector);
drm_encoder_cleanup(&priv->encoder);
tda998x_destroy(priv);
}
static const struct component_ops tda998x_ops = {
......@@ -1919,16 +1914,27 @@ static const struct component_ops tda998x_ops = {
static int
tda998x_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
int ret;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_warn(&client->dev, "adapter does not support I2C\n");
return -EIO;
}
return component_add(&client->dev, &tda998x_ops);
ret = tda998x_create(&client->dev);
if (ret)
return ret;
ret = component_add(&client->dev, &tda998x_ops);
if (ret)
tda998x_destroy(&client->dev);
return ret;
}
static int tda998x_remove(struct i2c_client *client)
{
component_del(&client->dev, &tda998x_ops);
tda998x_destroy(&client->dev);
return 0;
}
......
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