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Peng Fan a3c252d6d6 video: mxsfb: introduce lcdif_power_down
Introudce a new function lcdif_power_down.

1. Waits for a VSYNC interrupt to guarantee the reset is done at the
   VSYNC edge, which somehow makes the LCDIF consume the display FIFO(?)
   and helps the LCDIF work normally at the kernel stage.
2. Add power down function to stop lcdif.

The reason to introduce lcdif_power_down is that we want lcdif to be in
initial state when doing uboot reset or before kernel boot to make
system stable, otherwise system may hang.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Anatolij Gustschin <agust@denx.de>
2015-11-12 17:40:53 +01:00
..
adc sandbox: add ADC driver 2015-11-02 10:38:00 +09:00
bios_emulator Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
block Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h header 2015-09-11 17:15:20 -04:00
bootcount qe: move immap_qe.h from arch directory into common directory 2014-07-22 16:25:54 -07:00
clk rockchip: rk3288: Add clock driver 2015-09-02 21:28:23 -06:00
core Merge branch 'master' of git://git.denx.de/u-boot-net 2015-10-29 16:30:33 -04:00
cpu x86: Move MP initialization codes into a common place 2015-07-14 18:03:16 -06:00
crypto crypto/fsl: SEC driver cleanup for 64 bit and endianness 2015-10-29 10:33:57 -07:00
ddr Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
demo drivers: hierarchize drivers Kconfig menu 2015-08-12 20:47:44 -04:00
dfu dfu: dfu_sf: Pass duplicate devstr to parse_dev 2015-11-03 17:29:33 +01:00
dma dma: keystone_nav: Fix linkram size 2015-10-22 14:22:22 -04:00
fpga arm: socfpga: Fix FPGA bitstream programming routine 2015-08-08 14:14:04 +02:00
gpio nios2 : convert altera_pio to driver model 2015-10-23 07:37:03 +08:00
hwmon Fix bad return value checks (detected with Coccinelle) 2015-10-24 13:50:30 -04:00
i2c Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq 2015-10-30 12:56:58 -04:00
input video: Drop DEV_FLAGS_SYSTEM flag 2015-11-05 08:22:21 +01:00
led dm: led: Tidy up SPL options for the led and led-gpio 2015-09-02 21:28:22 -06:00
memory Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
misc Merge git://git.denx.de/u-boot 2015-11-12 17:13:26 +01:00
mmc Merge git://git.denx.de/u-boot-samsung 2015-11-05 07:46:45 -05:00
mtd mtd: add altera quadspi driver 2015-11-12 08:26:58 +08:00
net net: altera_tse: add mSG-DMA support 2015-11-12 08:26:59 +08:00
pci armv8/fsl_lsch3: Change arch to fsl-layerscape 2015-10-29 10:34:00 -07:00
pcmcia powerpc: mpc824x: remove MPC824X cpu support 2015-01-05 12:08:55 -05:00
pinctrl Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
power dm: regulator: add function device_get_supply_regulator() 2015-11-02 10:38:00 +09:00
pwm pwm: imx: Remove unreachable code 2015-05-26 14:13:12 +02:00
qe driver/qe: use strncpy instead of strcpy 2015-08-03 12:06:36 -07:00
ram ram: rename CONFIG_SPL_RAM_SUPPORT to CONFIG_SPL_RAM 2015-08-18 13:46:02 -04:00
remoteproc remoteproc: Introduce a sandbox dummy driver 2015-10-22 14:18:39 -04:00
rtc rtc: Add MCP79411 support to DS1307 rtc driver 2015-11-04 15:19:12 -08:00
serial altera_uart: Adjust the declaration of debug_uart_init() 2015-11-06 12:56:46 +08:00
soc Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
sound of: clean up OF_CONTROL ifdef conditionals 2015-08-18 13:46:05 -04:00
spi spi: altera_spi: minor clean up 2015-11-06 09:14:12 +08:00
thermal thermal: imx_thermal: Do not print on error 2015-09-13 10:49:21 +02:00
timer timer: altera_timer: minor clean up 2015-11-06 09:14:12 +08:00
tpm dm: tpm: Drop CONFIG_DM_TPM 2015-10-23 09:42:28 -06:00
twserial drivers: convert makefiles to Kbuild style 2013-10-31 13:26:01 -04:00
usb Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00
video video: mxsfb: introduce lcdif_power_down 2015-11-12 17:40:53 +01:00
watchdog ls102xa: Fix reset hang 2015-10-12 12:56:32 -04:00
Kconfig dm: adc: add simple ADC uclass implementation 2015-11-02 10:38:00 +09:00
Makefile Various Makefiles: Add SPDX-License-Identifier tags 2015-11-10 09:19:52 -05:00