diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2022-08-31 11:26:53 +0300 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-09-02 18:17:59 +0200 |
| commit | c312b0df3b13e4c533743bb2c37fd1bc237368e5 (patch) | |
| tree | 22530529f573db09ef17fc3410765dc50bfa70a1 | |
| parent | e43d5864f36ab32f831b1af7bc2171031e58e2ac (diff) | |
| download | linux-c312b0df3b13e4c533743bb2c37fd1bc237368e5.tar.bz2 | |
drm/bridge: ti-sn65dsi86: Implement bridge connector operations for DP
Implement the bridge connector-related .get_edid() and .detect()
operations for full DP mode, and report the related bridge capabilities
and type.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220831082653.20449-4-tomi.valkeinen@ideasonboard.com
| -rw-r--r-- | drivers/gpu/drm/bridge/ti-sn65dsi86.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 6e053e2af229..3c3561942eb6 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -29,6 +29,7 @@ #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_bridge_connector.h> +#include <drm/drm_edid.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> @@ -68,6 +69,7 @@ #define BPP_18_RGB BIT(0) #define SN_HPD_DISABLE_REG 0x5C #define HPD_DISABLE BIT(0) +#define HPD_DEBOUNCED_STATE BIT(4) #define SN_GPIO_IO_REG 0x5E #define SN_GPIO_INPUT_SHIFT 4 #define SN_GPIO_OUTPUT_SHIFT 0 @@ -1158,10 +1160,33 @@ static void ti_sn_bridge_atomic_post_disable(struct drm_bridge *bridge, pm_runtime_put_sync(pdata->dev); } +static enum drm_connector_status ti_sn_bridge_detect(struct drm_bridge *bridge) +{ + struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge); + int val = 0; + + pm_runtime_get_sync(pdata->dev); + regmap_read(pdata->regmap, SN_HPD_DISABLE_REG, &val); + pm_runtime_put_autosuspend(pdata->dev); + + return val & HPD_DEBOUNCED_STATE ? connector_status_connected + : connector_status_disconnected; +} + +static struct edid *ti_sn_bridge_get_edid(struct drm_bridge *bridge, + struct drm_connector *connector) +{ + struct ti_sn65dsi86 *pdata = bridge_to_ti_sn65dsi86(bridge); + + return drm_get_edid(connector, &pdata->aux.ddc); +} + static const struct drm_bridge_funcs ti_sn_bridge_funcs = { .attach = ti_sn_bridge_attach, .detach = ti_sn_bridge_detach, .mode_valid = ti_sn_bridge_mode_valid, + .get_edid = ti_sn_bridge_get_edid, + .detect = ti_sn_bridge_detect, .atomic_pre_enable = ti_sn_bridge_atomic_pre_enable, .atomic_enable = ti_sn_bridge_atomic_enable, .atomic_disable = ti_sn_bridge_atomic_disable, @@ -1257,6 +1282,9 @@ static int ti_sn_bridge_probe(struct auxiliary_device *adev, pdata->bridge.type = pdata->next_bridge->type == DRM_MODE_CONNECTOR_DisplayPort ? DRM_MODE_CONNECTOR_DisplayPort : DRM_MODE_CONNECTOR_eDP; + if (pdata->bridge.type == DRM_MODE_CONNECTOR_DisplayPort) + pdata->bridge.ops = DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_DETECT; + drm_bridge_add(&pdata->bridge); ret = ti_sn_attach_host(pdata); |