diff options
| author | Ye Li <ye.li@nxp.com> | 2018-08-13 01:49:19 -0700 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2018-08-13 03:33:52 -0700 |
| commit | 7e07aa674bfdd37c6334f3a4b37d166f09d3ef90 (patch) | |
| tree | 3ebc714cbb3ef0b6b142c34e36915fcddc1bf714 /board | |
| parent | 6069aa09d909a2eb0d894dc9853b4eeb09dc84db (diff) | |
MLK-19157 imx8mm_evk: Disable dsi panel before booting kernel
Pull down the DSI_EN gpio to disable mipi dsi panel before booting kernel.
This avoids display full yellow screen before kernel mipi driver probes
the device.
For MIPI2HDMI card, this DSI_EN gpio is not used. So nothing impact to it.
Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit e73adc9a139f2e8bb92bda1631fa2f2391a8a5e3)
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/imx8mm_evk/imx8mm_evk.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/board/freescale/imx8mm_evk/imx8mm_evk.c b/board/freescale/imx8mm_evk/imx8mm_evk.c index 9df2fffd8c7..d30d33cad41 100644 --- a/board/freescale/imx8mm_evk/imx8mm_evk.c +++ b/board/freescale/imx8mm_evk/imx8mm_evk.c @@ -663,6 +663,12 @@ void do_enable_mipi_led(struct display_info_t const *dev) imx_mipi_dsi_bridge_attach(&rm67191_dev); /* attach rm67191 device */ } +void board_quiesce_devices(void) +{ + gpio_request(IMX_GPIO_NR(1, 8), "DSI EN"); + gpio_direction_output(IMX_GPIO_NR(1, 8), 0); +} + struct display_info_t const displays[] = {{ .bus = LCDIF_BASE_ADDR, .addr = 0, |