Otavio Salvador 7773fd1969 imx: Easy enabling of SION per-pin using MUX_MODE_SION helper macro ... The macro allows easy setting in per-pin, as for example: ,---- | imx_iomux_v3_setup_pad(MX6_PAD_NANDF_D1__GPIO_2_1 | MUX_MODE_SION); `---- The IOMUX_CONFIG_SION allows for reading PAD value from PSR register. The following quote from the datasheet: ,---- | ... | 28.4.2.2 GPIO Write Mode | The programming sequence for driving output signals should be as follows: | 1. Configure IOMUX to select GPIO mode (Via IOMUXC), also enable SION if need | to read loopback pad value through PSR | 2. Configure GPIO direction register to output (GPIO_GDIR[GDIR] set to 1b). | 3. Write value to data register (GPIO_DR). | ... `---- This fixes the gpio_get_value to properly work when a GPIO is set for output and has no conflicts. Thanks for Benoît Thébaudeau <benoit.thebaudeau@advansee.com>, Fabio Estevam <fabio.estevam@freescale.com> and Eric Bénard <eric@eukrea.com> for helping to properly trace this down. Signed-off-by: Otavio Salvador <otavio@ossystems.com.br> Acked-by: Stefano Babic <sbabic@denx.de>		2014-01-03 15:44:05 +01:00
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cpu	mx6: soc: Disable VDDPU regulator	2014-01-02 17:16:51 +01:00
dts	exynos5: dts: Add device node for XHCI	2013-10-20 23:42:38 +02:00
imx-common	MX6: fix sata compilation for i.MX6	2013-12-19 11:04:33 +01:00
include/asm	imx: Easy enabling of SION per-pin using MUX_MODE_SION helper macro	2014-01-03 15:44:05 +01:00
lib	cosmetic: remove empty lines at the top of file	2013-11-08 09:41:37 -05:00
config.mk	Coding Style cleanup: replace leading SPACEs by TABs	2013-10-14 16:06:54 -04:00