| author | hang cheng <hang.cheng@amlogic.com> | 2020-04-24 13:37:17 (GMT) |
|---|---|---|
| committer | Shen Liu <shen.liu@amlogic.com> | 2020-07-31 11:33:08 (GMT) |
| commit | 866837d305e8efbf1ee4e52116eeed48b8ab5e6e (patch) | |
| tree | da76530741fa809798a4d5a35d4284e518f248dd | |
| parent | 169ca03cc93b1c9dbd67ad590767bd8387372070 (diff) | |
| download | common-866837d305e8efbf1ee4e52116eeed48b8ab5e6e.zip common-866837d305e8efbf1ee4e52116eeed48b8ab5e6e.tar.gz common-866837d305e8efbf1ee4e52116eeed48b8ab5e6e.tar.bz2 | |
hdmitx: avoid ddc filter reset affect edid reading [1/1]
PD#SWPL-24627
Problem:
i2c may hangup when reading edid during system power up.
it's caused by ddc filter reset
Solution:
move ddc filter reset to place which no ddc operation
Verify:
S805Y(P244)
Change-Id: I624dee1ae0ff338b7d6a357fad4b98337378a304
Signed-off-by: hang cheng <hang.cheng@amlogic.com>
| -rw-r--r-- | drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hw/hdmi_tx_hw.c | 3 |
1 files changed, 3 insertions, 0 deletions
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 455ad31..8f9327e 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 @@ -3802,6 +3802,9 @@ static void hdmitx_debug(struct hdmitx_dev *hdev, const char *buf) hdev->HWOp.CntlDDC(hdev, DDC_RESET_EDID, 0); hdev->HWOp.CntlDDC(hdev, DDC_EDID_READ_DATA, 0); return; + } else if (strncmp(tmpbuf, "i2creactive", 11) == 0) { + hdev->HWOp.CntlMisc(hdev, MISC_I2C_REACTIVE, 0); + return; } else if (strncmp(tmpbuf, "bist", 4) == 0) { if (strncmp(tmpbuf + 4, "off", 3) == 0) { hd_set_reg_bits(P_ENCP_VIDEO_MODE_ADV, 1, 3, 1); |