From: Kaifu Hu <kaifu.hu@amlogic.com>
Date: Thu, 22 Nov 2018 10:55:48 +0000 (+0800)
Subject: hdmitx: disable encryption hdcp1.4 fail [1/1]
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1336eb3c334e74a85270b0ea680a5559c0d3245b;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

hdmitx: disable encryption hdcp1.4 fail [1/1]

PD#SWPL-2302

Problem:
Play online video,half an hour later, the TV shows
a pink screen and the sound is normal.

Solution:
Check hdcp1.4 status and disable encryption when fail.

Verify:
S922X

Change-Id: I6ce51824726b267d140750f9e9d80aa8bb921cac
Signed-off-by: Kaifu Hu <kaifu.hu@amlogic.com>
---

diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c
index 96682a3c58c8..d7d629cbe581 100644
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c
@@ -4317,6 +4317,10 @@ static void hdcptx_events_handle(unsigned long arg)
 		st_flag = hdmitx_rd_reg(HDMITX_DWC_A_APIINTSTAT);
 		pr_info("hdcp14: instat: 0x%x\n", st_flag);
 	}
+
+	if (st_flag & (1 << 6)) {
+		hdmitx_set_reg_bits(HDMITX_DWC_A_HDCPCFG1, 1, 1, 1);
+	}
 	if (st_flag & (1 << 7)) {
 		hdmitx_wr_reg(HDMITX_DWC_A_APIINTCLR, 1 << 7);
 		hdmitx_hdcp_opr(3);