diff options
| author | Hugh Cole-Baker <sigmaris@gmail.com> | 2020-01-25 16:19:36 +0000 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2020-02-19 16:45:38 +0800 |
| commit | 80b9882a6e666fe7edd7fe3e821ae6e8188fb126 (patch) | |
| tree | fb61438e799915c4efe4e27baf19b6e0dacbd15f /arch/arm/mach-rockchip/boot_mode.c | |
| parent | a30c68945cadc6aada3f05a6864627f3ca9d6bde (diff) | |
rockchip: boot_mode: find the saradc device name
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>
Diffstat (limited to 'arch/arm/mach-rockchip/boot_mode.c')
| -rw-r--r-- | arch/arm/mach-rockchip/boot_mode.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/arm/mach-rockchip/boot_mode.c b/arch/arm/mach-rockchip/boot_mode.c index 08f80bd91a..7598fe4c43 100644 --- a/arch/arm/mach-rockchip/boot_mode.c +++ b/arch/arm/mach-rockchip/boot_mode.c @@ -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; } |