leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rockchip: boot_mode: find the saradc device name

Browse Source 
adc_channel_single_shot() requires the full device name e.g.
"saradc@ff100000", which differs between Rockchip SoC's, but they all
share the prefix "saradc"; find the ADC device with this name prefix and
use its full name.

Signed-off-by: Hugh Cole-Baker <sigmaris@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Hugh Cole-Baker 2020-01-25 16:19:36 +00:00 committed by Kever Yang
parent a30c68945c
commit 80b9882a6e
1 changed files with 21 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
arch/arm/mach-rockchip/boot_mode.c
View File

@ -7,6 +7,8 @@
#include <adc.h>
#include <asm/io.h>
#include <asm/arch-rockchip/boot_mode.h>
#include <dm/device.h>
#include <dm/uclass.h>
#if (CONFIG_ROCKCHIP_BOOT_MODE_REG == 0)
@ -35,8 +37,26 @@ void set_back_to_bootrom_dnl_flag(void)
__weak int rockchip_dnl_key_pressed(void)
{
unsigned int val;
struct udevice *dev;
struct uclass *uc;
int ret;
if (adc_channel_single_shot("saradc", 1, &val)) {
ret = uclass_get(UCLASS_ADC, &uc);
if (ret)
return false;
ret = -ENODEV;
uclass_foreach_dev(dev, uc) {
if (!strncmp(dev->name, "saradc", 6)) {
ret = adc_channel_single_shot(dev->name, 1, &val);
break;
}
}
if (ret == -ENODEV) {
pr_warn("%s: no saradc device found\n", __func__);
return false;
} else if (ret) {
pr_err("%s: adc_channel_single_shot fail!\n", __func__);
return false;
}