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drm/rockchip: rgb: add support for mcu soft_te mode

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Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
Change-Id: Ic67a3f3770ff8929a070e6d521c2d77393d3b187
This commit is contained in:
Damon Ding
2023-11-17 15:40:59 +08:00
committed by Tao Huang
parent 9c480764d8
commit a92ffdc4ba
1 changed files with 32 additions and 0 deletions
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32
drivers/gpu/drm/rockchip/rockchip_rgb.c
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@@ -129,6 +129,7 @@ struct rockchip_mcu_panel {
struct gpio_desc *enable_gpio;
struct gpio_desc *reset_gpio;
struct gpio_desc *te_gpio;
struct device_node *np_crtc;
@@ -277,6 +278,8 @@ rockchip_rgb_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_connector_state *conn_state)
{
struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
struct rockchip_rgb *rgb = encoder_to_rgb(encoder);
struct rockchip_mcu_panel *mcu_panel = to_rockchip_mcu_panel(rgb->panel);
struct drm_connector *connector = conn_state->connector;
struct drm_display_info *info = &connector->display_info;
@@ -344,6 +347,8 @@ rockchip_rgb_encoder_atomic_check(struct drm_encoder *encoder,
s->bus_flags = info->bus_flags;
s->tv_state = &conn_state->tv;
s->eotf = HDMI_EOTF_TRADITIONAL_GAMMA_SDR;
if (rgb->np_mcu_panel)
s->soft_te = mcu_panel->te_gpio ? true : false;
return 0;
}
@@ -484,6 +489,17 @@ static int rockchip_mcu_panel_parse_cmd_seq(struct device *dev,
return 0;
}
static irqreturn_t rockchip_mcu_te_irq_handler(int irq, void *dev_id)
{
struct rockchip_rgb *rgb = (struct rockchip_rgb *)dev_id;
struct drm_encoder *encoder = &rgb->encoder;
if (encoder->crtc)
rockchip_drm_te_handle(encoder->crtc);
return IRQ_HANDLED;
}
static int rockchip_mcu_panel_init(struct rockchip_rgb *rgb)
{
struct device *dev = rgb->dev;
@@ -513,6 +529,22 @@ static int rockchip_mcu_panel_init(struct rockchip_rgb *rgb)
return PTR_ERR(mcu_panel->reset_gpio);
}
mcu_panel->te_gpio = devm_fwnode_gpiod_get_index(dev, &np_mcu_panel->fwnode,
"te", 0, GPIOD_IN,
fwnode_get_name(&np_mcu_panel->fwnode));
if (IS_ERR(mcu_panel->te_gpio)) {
mcu_panel->te_gpio = NULL;
} else {
ret = devm_request_threaded_irq(dev, gpiod_to_irq(mcu_panel->te_gpio),
rockchip_mcu_te_irq_handler, NULL,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"MCU-PANEL-TE", rgb);
if (ret) {
DRM_DEV_ERROR(dev, "failed to request TE IRQ: %d\n", ret);
return ret;
}
}
mcu_panel->desc = devm_kzalloc(dev, sizeof(*mcu_panel->desc), GFP_KERNEL);
if (!mcu_panel->desc)
return -ENOMEM;