# \[PATCH v6 10/18\] drm/bridge: inno-hdmi: Add .disable platform operation - From: Michal Wilczynski \ - Date: 2026-10-29 07:54:11 - List: linux-arm-kernel - Page: https://ratatoskr.run/linux-arm-kernel/2026/10/17825263 - Thread: https://ratatoskr.run/linux-devicetree/2026/10/17825252/t.md ```text The Innosilicon HDMI driver supports platform-specific behavior through the `inno_hdmi_plat_ops`. While it provides an `.enable` hook for platform-specific power up sequences (like enabling PHYs), it lacks a corresponding hook for power down. This patch adds a new `.disable` op to the `inno_hdmi_plat_ops` struct and calls it at the beginning of `inno_hdmi_bridge_atomic_disable()`. This allows platform specific drivers, such as the StarFive JH7110, to implement their own power down sequence (e.g., calling phy_power_off() and clk_disable_unprepare()). Reviewed-by: Joshua Peisach Reviewed-by: Heiko Stuebner Tested-by: Byron Stanoszek Tested-by: OOHehir Signed-off-by: Michal Wilczynski --- drivers/gpu/drm/bridge/inno-hdmi.c | 4 ++++ include/drm/bridge/inno_hdmi.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/gpu/drm/bridge/inno-hdmi.c b/drivers/gpu/drm/bridge/inno-hdmi.c index a8905bf627a224d7e3918514195f1810164dc26f..708d4c03f8880429f99680abd0c92e150312237b 100644 --- a/drivers/gpu/drm/bridge/inno-hdmi.c +++ b/drivers/gpu/drm/bridge/inno-hdmi.c @@ -886,6 +886,10 @@ static void inno_hdmi_bridge_atomic_disable(struct drm_bridge *bridge, struct drm_atomic_commit *state) { struct inno_hdmi *hdmi = bridge_to_inno_hdmi(bridge); + const struct inno_hdmi_plat_ops *plat_ops = hdmi->plat_data->ops; + + if (plat_ops && plat_ops->disable) + plat_ops->disable(hdmi->dev); inno_hdmi_standby(hdmi); } diff --git a/include/drm/bridge/inno_hdmi.h b/include/drm/bridge/inno_hdmi.h index 507d5e999183ca02e7dcbe4ce7568acc21426a89..0864f0d8862a4325821a84db6d04f14011d9aa78 100644 --- a/include/drm/bridge/inno_hdmi.h +++ b/include/drm/bridge/inno_hdmi.h @@ -16,6 +16,7 @@ struct platform_device; struct inno_hdmi_plat_ops { void (*enable)(struct device *pdev, struct drm_display_mode *mode); + void (*disable)(struct device *pdev); }; struct inno_hdmi_phy_config { -- 2.34.1 ```