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video: parade: configure SLP and RST GPIOs if specified in DT 

Add support to configure EDP_RST GPIO and EDP_SLP GPIO,
if provided in parade DT node.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Ajay Kumar 2015-03-04 19:05:27 +05:30 committed by Minkyu Kang
parent 9018efa7e2
commit 55e70929b8
1 changed files with 11 additions and 0 deletions
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11
drivers/video/parade.c
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@ -12,6 +12,7 @@
#include <common.h>
#include <i2c.h>
#include <fdtdec.h>
#include <asm/gpio.h>
/*
* Initialization of the chip is a process of writing certaing values into
@ -180,6 +181,8 @@ static int parade_write_regs(int base_addr, const struct reg_data *table)
int parade_init(const void *blob)
{
struct gpio_desc rst_gpio;
struct gpio_desc slp_gpio;
int bus, old_bus;
int parent;
int node;
@ -201,6 +204,14 @@ int parade_init(const void *blob)
return -1;
}
gpio_request_by_name_nodev(blob, node, "sleep-gpio", 0, &slp_gpio,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
mdelay(10);
gpio_request_by_name_nodev(blob, node, "reset-gpio", 0, &rst_gpio,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
bus = i2c_get_bus_num_fdt(parent);
old_bus = i2c_get_bus_num();