diff options
| author | Jimmy Zhang <jimmzhang@nvidia.com> | 2014-04-14 12:47:37 -0700 |
|---|---|---|
| committer | Marc Jones <marc.jones@se-eng.com> | 2014-12-16 23:25:37 +0100 |
| commit | d712ec47d48f765dbc9008d94b58842d6c24b544 (patch) | |
| tree | 2ee734f118188fd0446f88e1a67264ce07fb9ef9 /src/soc/nvidia/tegra124 | |
| parent | 84b8be6a97806bb4a98846ef449440f6950de727 (diff) | |
nyan*: Set SOR_NV_PDISP_SOR_DP_SPARE0 register
This register needs to be set properly during display init.
BRANCH=none
BUG=chrome-os-partner:27413
TEST=build nyan and nyan_big. nyan display works fine.
nyan_big display works as well. However, the mode setting
needs to be based on either devicetree or EDID.
Original-Signed-off-by: Jimmy Zhang <jimmzhang@nvidia.com>
Original-Change-Id: I93c69d8042a3f3c19f4e24801423b73246e37031
Original-Reviewed-on: https://chromium-review.googlesource.com/194739
Original-Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Original-Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Original-Tested-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit ee9a3c472c5621edebefcc8882582c6fc01255e2)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ie642a008eaf6c4ab68ede1dde98ff4268f51fc9c
Reviewed-on: http://review.coreboot.org/7767
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/soc/nvidia/tegra124')
| -rw-r--r-- | src/soc/nvidia/tegra124/dp.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra124/dp.c b/src/soc/nvidia/tegra124/dp.c index cc341b898f..ad6c0da75c 100644 --- a/src/soc/nvidia/tegra124/dp.c +++ b/src/soc/nvidia/tegra124/dp.c @@ -618,6 +618,22 @@ static int tegra_dc_dp_init_link_cfg( return 0; } +static int tegra_dc_dp_set_assr(struct tegra_dc_dp_data *dp, int ena) +{ + int ret; + + u8 dpcd_data = ena ? + NV_DPCD_EDP_CONFIG_SET_ASC_RESET_ENABLE : + NV_DPCD_EDP_CONFIG_SET_ASC_RESET_DISABLE; + + CHECK_RET(tegra_dc_dp_dpcd_write(dp, NV_DPCD_EDP_CONFIG_SET, + dpcd_data)); + + /* Also reset the scrambler to 0xfffe */ + tegra_dc_sor_set_internal_panel(&dp->sor, ena); + return 0; +} + static void tegra_dp_update_config(struct tegra_dc_dp_data *dp, struct soc_nvidia_tegra124_config *config) { @@ -738,6 +754,12 @@ void dp_enable(void * _dp) goto error_enable; } + /* enable ASSR */ + if (tegra_dc_dp_set_assr(dp, dp->link_cfg.scramble_ena)) { + printk(BIOS_ERR, "dp: failed to enable ASSR\n"); + goto error_enable; + } + tegra_dc_sor_enable_dp(&dp->sor); tegra_dc_sor_set_panel_power(&dp->sor, 1); |