hdmitx: optimise the sup_2160p60hz of DV [1/1]

PD#SWPL-10065

Problem:
TV claims that supporting DV version2, but it lacks
the Max_TMDS_Clock2 600MHz

Solution:
if max tmds clock is less than 600MHz, clear sup_2160p60hz

Verify:
G12/U212

Change-Id: I77c024dfa860bca60020db689c2a07ae8f502528
Signed-off-by: Zongdong Jiao <zongdong.jiao@amlogic.com>

diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_edid.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_edid.c
index b717c52..858e34b 100644 (file)
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_edid.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_edid.c
@@ -2194,6 +2194,7 @@ int hdmitx_edid_parse(struct hdmitx_dev *hdmitx_device)
        int i, j, ret_val;
        int idx[4];
        struct rx_cap *pRXCap = &(hdmitx_device->RXCap);
+       struct dv_info *dv = &(hdmitx_device->RXCap.dv_info);
        struct vinfo_s *info = NULL;
 
        if (check_dvi_hdmi_edid_valid(hdmitx_device->EDID_buf)) {
@@ -2415,6 +2416,13 @@ int hdmitx_edid_parse(struct hdmitx_dev *hdmitx_device)
                        rxlatency_to_vinfo(info, pRXCap);
                }
        }
+       /* if sup_2160p60hz of dv is true, check the MAX_TMDS*/
+       if (dv->sup_2160p60hz) {
+               if (pRXCap->Max_TMDS_Clock2 * 5 < 590) {
+                       dv->sup_2160p60hz = 0;
+                       pr_info(EDID "clear sup_2160p60hz\n");
+               }
+       }
        return 0;
 
 }

diff --git a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
index 37113f1..2583426 100644 (file)
--- a/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
+++ b/drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
@@ -2826,8 +2826,8 @@ static ssize_t show_dv_cap(struct device *dev,
        if (dv->ver == 2) {
                pos += snprintf(buf + pos, PAGE_SIZE,
                        "VSVDB Version: V%d\n", dv->ver);
-               pos += snprintf(buf + pos, PAGE_SIZE,
-                       "2160p60hz: 1\n");
+               pos += snprintf(buf + pos, PAGE_SIZE, "2160p%shz: 1\n",
+                       dv->sup_2160p60hz ? "60" : "30");
                pos += snprintf(buf + pos, PAGE_SIZE,
                        "Support mode:\n");
                if ((dv->Interface != 0x00) && (dv->Interface != 0x01)) {