On Tue, May 15, 2018 at 11:22:40AM +0800, Lin Huang wrote: > DP firmware uses fixed phy config values to do training, but some > boards need to adjust these values to fit for their unique hardware > design. So get phy config values from dts and use software link training > instead of relying on firmware, if software training fail, keep firmware > training as a fallback if sw training fails. > > > Signed-off-by: Chris Zhong <zyw@xxxxxxxxxxxxxx> > Signed-off-by: Lin Huang <hl@xxxxxxxxxxxxxx> > --- > Changes in v2: > - update patch following Enric suggest > Changes in v3: > - use variable fw_training instead sw_training_success > - base on DP SPCE, if training fail use lower link rate to retry training > Changes in v4: > - improve cdn_dp_get_lower_link_rate() and cdn_dp_software_train_link() follow Sean suggest > > drivers/gpu/drm/rockchip/Makefile | 3 +- > drivers/gpu/drm/rockchip/cdn-dp-core.c | 24 +- > drivers/gpu/drm/rockchip/cdn-dp-core.h | 2 + > drivers/gpu/drm/rockchip/cdn-dp-link-training.c | 420 ++++++++++++++++++++++++ > drivers/gpu/drm/rockchip/cdn-dp-reg.c | 31 +- > drivers/gpu/drm/rockchip/cdn-dp-reg.h | 38 ++- > 6 files changed, 505 insertions(+), 13 deletions(-) > create mode 100644 drivers/gpu/drm/rockchip/cdn-dp-link-training.c Please rerun checkpatch next time. You've got a bunch of whitespace issues in cdn_dp_get_lower_link_rate() and cdn_dp_software_train_link(). Brian -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
