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drm/rockchip: dw-hdmi: Fix hdmi i2c scl configuration error 

If ddc-i2c-scl-high-time-ns and ddc-i2c-scl-low-time-ns are not
set in dts, scl_high_ns and scl_low_ns will set to -1. Because of
these variables are unsigned int, misjudgment may occur when their
values are judged.

Change-Id: I8b94f7c2ab8bcb0d966182f220877f9268b7981b
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
This commit is contained in:
Algea Cao 2019-07-18 16:59:42 +08:00 committed by Jianhong Chen
parent 84a1bd9cfb
commit 19c2faf2ce
1 changed files with 2 additions and 7 deletions
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9
drivers/video/drm/dw_hdmi.c
View File

@ -2325,15 +2325,10 @@ int rockchip_dw_hdmi_init(struct display_state *state)
*/
hdmi->i2c->scl_high_ns =
ofnode_read_s32_default(hdmi_node,
"ddc-i2c-scl-high-time-ns", -1);
if (hdmi->i2c->scl_high_ns < 0)
hdmi->i2c->scl_high_ns = 4708;
"ddc-i2c-scl-high-time-ns", 4708);
hdmi->i2c->scl_low_ns =
ofnode_read_s32_default(hdmi_node,
"ddc-i2c-scl-low-time-ns", -1);
if (hdmi->i2c->scl_low_ns < 0)
hdmi->i2c->scl_low_ns = 4916;
"ddc-i2c-scl-low-time-ns", 4916);
dw_hdmi_i2c_init(hdmi);
conn_state->type = DRM_MODE_CONNECTOR_HDMIA;