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soc/mediatek: Prevent passing NULL MIPI commands 

Previously (before CB:56965 [1]) mtk_dsi_send_init_command() would
ignore NULL initialization commands passed to it. However, in the
current code mipi_panel_parse_init_commands() doesn't check that (see
CB:57150 [2]), so we should check it on the caller side from
mtk_dsi_init().

[1] b2a1480191 device: Move MIPI panel library from
               mainboard/google/kukui into common
[2] 4757a7ea33 mipi: Make panel init callback work directly on DSI
               transaction types

BUG=b:202871018, b:209930699
TEST=emerge-corsola coreboot
BRANCH=none

Change-Id: I8196e3b135da273325e2e121523abb7fb230a49c
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60392
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
This commit is contained in:
Yu-Ping Wu 2021-12-27 13:46:35 +08:00 committed by Felix Held
parent db01d1e2fc
commit f8f5062430
1 changed files with 2 additions and 1 deletions
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3
src/soc/mediatek/common/dsi.c
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@ -377,7 +377,8 @@ int mtk_dsi_init(u32 mode_flags, u32 format, u32 lanes, const struct edid *edid,
mtk_dsi_clk_hs_mode_disable();
mtk_dsi_config_vdo_timing(mode_flags, format, lanes, edid, &phy_timing);
mtk_dsi_clk_hs_mode_enable();
mipi_panel_parse_init_commands(init_commands, mtk_dsi_cmdq);
if (init_commands)
mipi_panel_parse_init_commands(init_commands, mtk_dsi_cmdq);
mtk_dsi_set_mode(mode_flags);
mtk_dsi_start();