[PATCH v2 1/3] drm/vc4: Implement vc6_hdmi_phy_disable

[Lucas Tanure <lucas.tanure@neat.no>]

From: Dom Cobley <popcornmix@gmail.com>

The body of this function was missing so we don't reset the phy
when disabling it.

Fixes: 0b1dbe82e051 ("drm/vc4: hdmi: Add support for BCM2712 HDMI controllers")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
Signed-off-by: Lucas Tanure <lucas.tanure@neat.no>
---
 drivers/gpu/drm/vc4/vc4_hdmi_phy.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
index 56e6a35da357..5040f014bf7e 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi_phy.c
@@ -1197,4 +1197,9 @@ void vc6_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi,
 
 void vc6_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&vc4_hdmi->hw_lock, flags);
+	vc6_hdmi_reset_phy(vc4_hdmi);
+	spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags);
 }
-- 
2.56.0