The bridge operation '.enable' and the audio cb '.get_eld'
access hdmi->conn. In the future we will want to support
the flag DRM_BRIDGE_ATTACH_NO_CONNECTOR and then we will
not have direct access to the connector.
The atomic version '.atomic_enable' allows accessing the
current connector from the state.
This patch switches the bridge to the atomic version and
saves the current connector in a new field 'curr_conn'.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 41 ++++++++++++++++++++---------
1 file changed, 29 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 8ee55f9e2954..9f415c508b33 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -154,6 +154,7 @@ struct mtk_hdmi {
struct drm_bridge bridge;
struct drm_bridge *next_bridge;
struct drm_connector conn;
+ struct drm_connector *curr_conn;
struct device *dev;
const struct mtk_hdmi_conf *conf;
struct phy *phy;
@@ -974,7 +975,7 @@ static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi,
ssize_t err;
err = drm_hdmi_avi_infoframe_from_display_mode(&frame,
- &hdmi->conn, mode);
+ hdmi->curr_conn, mode);
if (err < 0) {
dev_err(hdmi->dev,
"Failed to get AVI infoframe from mode: %zd\n", err);
@@ -1054,7 +1055,7 @@ static int mtk_hdmi_setup_vendor_specific_infoframe(struct mtk_hdmi *hdmi,
ssize_t err;
err = drm_hdmi_vendor_infoframe_from_display_mode(&frame,
- &hdmi->conn, mode);
+ hdmi->curr_conn, mode);
if (err) {
dev_err(hdmi->dev,
"Failed to get vendor infoframe from mode: %zd\n", err);
@@ -1357,7 +1358,8 @@ static bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
return true;
}
-static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge)
+static void mtk_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
{
struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
@@ -1368,10 +1370,13 @@ static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge)
clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]);
clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
+ hdmi->curr_conn = NULL;
+
hdmi->enabled = false;
}
-static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge)
+static void mtk_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_state)
{
struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
@@ -1406,7 +1411,8 @@ static void mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge,
drm_mode_copy(&hdmi->mode, adjusted_mode);
}
-static void mtk_hdmi_bridge_pre_enable(struct drm_bridge *bridge)
+static void mtk_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_state)
{
struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
@@ -1426,10 +1432,16 @@ static void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi,
mtk_hdmi_setup_vendor_specific_infoframe(hdmi, mode);
}
-static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge)
+static void mtk_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_state)
{
+ struct drm_atomic_state *state = old_state->base.state;
struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+ /* Retrieve the connector through the atomic state. */
+ hdmi->curr_conn = drm_atomic_get_new_connector_for_encoder(state,
+ bridge->encoder);
+
mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode);
clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]);
@@ -1440,13 +1452,16 @@ static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge)
}
static const struct drm_bridge_funcs mtk_hdmi_bridge_funcs = {
+ .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+ .atomic_reset = drm_atomic_helper_bridge_reset,
.attach = mtk_hdmi_bridge_attach,
.mode_fixup = mtk_hdmi_bridge_mode_fixup,
- .disable = mtk_hdmi_bridge_disable,
- .post_disable = mtk_hdmi_bridge_post_disable,
+ .atomic_disable = mtk_hdmi_bridge_atomic_disable,
+ .atomic_post_disable = mtk_hdmi_bridge_atomic_post_disable,
.mode_set = mtk_hdmi_bridge_mode_set,
- .pre_enable = mtk_hdmi_bridge_pre_enable,
- .enable = mtk_hdmi_bridge_enable,
+ .atomic_pre_enable = mtk_hdmi_bridge_atomic_pre_enable,
+ .atomic_enable = mtk_hdmi_bridge_atomic_enable,
};
static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
@@ -1662,8 +1677,10 @@ static int mtk_hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf,
{
struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
- memcpy(buf, hdmi->conn.eld, min(sizeof(hdmi->conn.eld), len));
-
+ if (hdmi->curr_conn)
+ memcpy(buf, hdmi->curr_conn->eld, min(sizeof(hdmi->curr_conn->eld), len));
+ else
+ memset(buf, 0, len);
return 0;
}
--
2.17.1
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