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authorJernej Skrabec <jernej.skrabec@gmail.com>2023-09-09 17:44:32 +0300
committerRobert Foss <rfoss@kernel.org>2023-09-18 12:59:09 +0300
commit484281d5436cace1be87584120d74c24d0dba833 (patch)
treed71efb5087952a824467f89b1a4f17024ba6b8f1 /drivers/gpu/drm/bridge
parent37454bcbb68601c326b58ac45f508067047d791f (diff)
downloadlinux-484281d5436cace1be87584120d74c24d0dba833.tar.xz
drm/bridge: dw-hdmi-cec: Add arbitration lost event
Add handling of arbitration lost event. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Robert Foss <rfoss@kernel.org> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230909144432.34972-1-jernej.skrabec@gmail.com
Diffstat (limited to 'drivers/gpu/drm/bridge')
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
index be21c11de1f2..673661160e54 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
@@ -145,6 +145,10 @@ static irqreturn_t dw_hdmi_cec_hardirq(int irq, void *data)
cec->tx_status = CEC_TX_STATUS_NACK;
cec->tx_done = true;
ret = IRQ_WAKE_THREAD;
+ } else if (stat & CEC_STAT_ARBLOST) {
+ cec->tx_status = CEC_TX_STATUS_ARB_LOST;
+ cec->tx_done = true;
+ ret = IRQ_WAKE_THREAD;
}
if (stat & CEC_STAT_EOM) {
@@ -209,7 +213,7 @@ static int dw_hdmi_cec_enable(struct cec_adapter *adap, bool enable)
cec->ops->enable(cec->hdmi);
irqs = CEC_STAT_ERROR_INIT | CEC_STAT_NACK | CEC_STAT_EOM |
- CEC_STAT_DONE;
+ CEC_STAT_ARBLOST | CEC_STAT_DONE;
dw_hdmi_write(cec, irqs, HDMI_CEC_POLARITY);
dw_hdmi_write(cec, ~irqs, HDMI_CEC_MASK);
dw_hdmi_write(cec, ~irqs, HDMI_IH_MUTE_CEC_STAT0);