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drm/vc4: hdmi: Add reset callback

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The BCM2711 and BCM283x HDMI controllers use a slightly different reset
sequence, so let's add a callback to reset the controller.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a34bcb493da07eae58ed704f65e72ce0748e8952.1599120059.git-series.maxime@cerno.tech
This commit is contained in:
Maxime Ripard
2020-09-03 10:01:24 +02:00
parent 311e305fdb
commit 9045e91a47
2 changed files with 21 additions and 13 deletions
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3
drivers/gpu/drm/vc4/vc4_hdmi.h
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@@ -35,6 +35,9 @@ struct vc4_hdmi_variant {
* clocks, etc) for that variant.
*/
int (*init_resources)(struct vc4_hdmi *vc4_hdmi);
/* Callback to reset the HDMI block */
void (*reset)(struct vc4_hdmi *vc4_hdmi);
};
/* HDMI audio information */