[PATCH v2 1/3] drm/mediatek: Switch the hdmi bridge ops to the atomic versions

From: Dafna Hirschfeld
Date: Mon Mar 29 2021 - 11:37:55 EST


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 to
prepare access to the connector in later patches.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@xxxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_hdmi.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 8ee55f9e2954..f2c810b767ef 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -1357,7 +1357,8 @@ 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);

@@ -1371,7 +1372,8 @@ static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge)
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 +1408,8 @@ 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);

@@ -1426,7 +1429,8 @@ 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 mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);

@@ -1440,13 +1444,16 @@ 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,
--
2.17.1