From: yicheng shen <yicheng.shen@amlogic.com>
Date: Thu, 13 Dec 2018 09:12:07 +0000 (-0500)
Subject: hdmirx: fix dvi issue when resume [1/1]
X-Git-Tag: hardkernel-4.9.236-104~1992
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6728638fb5e80c9b0a52bf7c602f31dc2a53ddac;p=platform%2Fkernel%2Flinux-amlogic.git

hdmirx: fix dvi issue when resume [1/1]

PD#SWPL-2641

Problem:
SDA of I2C was pulled down,the box cant read EDID and then send DVI.

Solution:
Add rxsense pulse to avoid mtk box sda low issue.

Verify:
Local

Change-Id: I0d3dc4b0c3b956663be1d3e383094e456f3d4e7d
Signed-off-by: yicheng shen <yicheng.shen@amlogic.com>
---

diff --git a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.c b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.c
index 47ff362..da115d9 100644
--- a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.c
+++ b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.c
@@ -1691,7 +1691,7 @@ static void rx_phy_suspend(void)
 		if (hdmi_cec_en != 0) {
 			if (suspend_pddq_sel == 2) {
 				/* set rxsense pulse */
-				rx_phy_rxsense_pulse(10, 10);
+				rx_phy_rxsense_pulse(10, 10, 0);
 			}
 		}
 		/* phy powerdown */
@@ -1707,7 +1707,7 @@ static void rx_phy_resume(void)
 			 * rxsense pulse and phy_int shottern than
 			 * 50ms, SDA may be pulled low 800ms on MTK box
 			 */
-			rx_phy_rxsense_pulse(20, 50);
+			rx_phy_rxsense_pulse(20, 50, 1);
 		}
 	}
 	hdmirx_phy_init();
diff --git a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.h b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.h
index 7dc3559a..99dc5aa 100644
--- a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.h
+++ b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_drv.h
@@ -34,7 +34,7 @@
 #include "hdmi_rx_edid.h"
 
 
-#define RX_VER0 "ver.2018-11-30"
+#define RX_VER0 "ver.2018-12-13"
 /*
  *
  *
diff --git a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.c b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.c
index 8c6f8cb..cdffc70 100644
--- a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.c
+++ b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.c
@@ -3561,12 +3561,12 @@ unsigned int aml_phy_tmds_valid(void)
 	}
 }
 
-void rx_phy_rxsense_pulse(unsigned int t1, unsigned int t2)
+void rx_phy_rxsense_pulse(unsigned int t1, unsigned int t2, bool en)
 {
 	/* set rxsense pulse */
-	hdmirx_phy_pddq(1);
+	hdmirx_phy_pddq(!en);
 	mdelay(t1);
-	hdmirx_phy_pddq(0);
+	hdmirx_phy_pddq(en);
 	mdelay(t2);
 }
 
diff --git a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.h b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.h
index aeee4db..eb4e549 100644
--- a/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.h
+++ b/drivers/amlogic/media/vin/tvin/hdmirx/hdmi_rx_hw.h
@@ -1204,7 +1204,7 @@ extern void rx_force_rxsense_cfg(uint8_t level);
 extern void rx_force_hpd_rxsense_cfg(uint8_t level);
 extern void rx_audio_bandgap_rst(void);
 extern void rx_audio_bandgap_rst(void);
-extern void rx_phy_rxsense_pulse(unsigned int t1, unsigned int t2);
+extern void rx_phy_rxsense_pulse(unsigned int t1, unsigned int t2, bool en);
 extern void rx_phy_power_on(unsigned int onoff);