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MLK-10449-1: 74x164: Add new property registers-default 

For some platform such as imx7D SDB, one pin of 74x164 to
control all peripheral power supply(PERI_3V_EN).
The pin should keep in high voltage level when 74x164 loading,
otherwise the module depend on PERI_3V3 will lose power.
So add new property registers-default into 74x164 driver.

Signed-off-by: Sandor Yu <R01008@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
(cherry picked from commit: 61fe7af7e47dd8bf6acc91ceabd9e660d28de28a)
Signed-off-by: Arulpandiyan Vadivel <arulpandiyan_vadivel@mentor.com>
5.4-rM2-2.2.x-imx-squashed
Sandor Yu 2015-03-20 14:58:20 +08:00 committed by Dong Aisheng
parent 056c182863
commit 6f7fccc17f
1 changed files with 3 additions and 0 deletions
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3
drivers/gpio/gpio-74x164.c
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@ -142,6 +142,9 @@ static int gen_74x164_probe(struct spi_device *spi)
chip->registers = nregs;
chip->gpio_chip.ngpio = GEN_74X164_NUMBER_GPIOS * chip->registers;
of_property_read_u8_array(spi->dev.of_node, "registers-default",
chip->buffer, chip->registers);
chip->gpio_chip.can_sleep = true;
chip->gpio_chip.parent = &spi->dev;
chip->gpio_chip.owner = THIS_MODULE;