Add HPD interrupt enable functions in drm framework, and also add
detect_ctx functions. Because of the debouncing when HPD pulled out,
add 200 ms delay in detect. Add link reset process to reset link status
when a new connector pulgged in.
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250331074212.3370287-8-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
DP controller can support generating a color bar signal over the
DisplayPort interface. This can be useful to check for possible DDR
or GPU problems, as the signal generator resides completely in the DP
block. Add debugfs file that controls colorbar generator.
echo: config the color bar register to display
cat: print the color bar configuration
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250331074212.3370287-7-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Add registering drm_aux and use it to get connector edid with drm
functions. Add ddc channel in connector initialization to put drm_aux
in drm_connector.
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250331074212.3370287-6-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
To support DP interface displaying in hibmc driver. Add
a encoder and connector for DP modual. The HPD function
and get_edid function will be add in next series, so temporarily
using 1024x768 as default in hibmc_dp_connector_get_modes()
Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Tian Tao <tiantao6@hisilicon.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250103093824.1963816-6-shiyongbang@huawei.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
