The patch adds code to report back feature complete IRQ, and code
to read and drop burst writes from peer.
Signed-off-by: Andrzej Hajda <a.ha...@samsung.com>
---
drivers/gpu/drm/bridge/sil-sii8620.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c
b/drivers/gpu/drm/bridge/sil-sii8620.c
index 66ad397..54ea864 100644
--- a/drivers/gpu/drm/bridge/sil-sii8620.c
+++ b/drivers/gpu/drm/bridge/sil-sii8620.c
@@ -1604,12 +1604,31 @@ static void sii8620_irq_disc(struct sii8620 *ctx)
sii8620_write(ctx, REG_CBUS_DISC_INTR0, stat);
}
+static void sii8620_read_burst(struct sii8620 *ctx)
+{
+ u8 buf[17];
+
+ sii8620_read_buf(ctx, REG_MDT_RCV_READ_PORT, buf, ARRAY_SIZE(buf));
+ sii8620_write(ctx, REG_MDT_RCV_CTRL, BIT_MDT_RCV_CTRL_MDT_RCV_EN |
+ BIT_MDT_RCV_CTRL_MDT_DELAY_RCV_EN |
+ BIT_MDT_RCV_CTRL_MDT_RFIFO_CLR_CUR);
+ sii8620_readb(ctx, REG_MDT_RFIFO_STAT);
+}
+
static void sii8620_irq_g2wb(struct sii8620 *ctx)
{
u8 stat = sii8620_readb(ctx, REG_MDT_INT_0);
if (stat & BIT_MDT_IDLE_AFTER_HAWB_DISABLE)
- dev_dbg(ctx->dev, "HAWB idle\n");
+ if (sii8620_is_mhl3(ctx))
+ sii8620_mt_set_int(ctx, MHL_INT_REG(RCHANGE),
+ MHL_INT_RC_FEAT_COMPLETE);
+
+ if (stat & BIT_MDT_RFIFO_DATA_RDY)
+ sii8620_read_burst(ctx);
+
+ if (stat & BIT_MDT_XFIFO_EMPTY)
+ sii8620_write(ctx, REG_MDT_XMIT_CTRL, 0);
sii8620_write(ctx, REG_MDT_INT_0, stat);
}
--
2.7.4
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