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dm: core: Show driver name with 'dm tree'

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It is often useful to see which driver was actually selected for each
device. Add a new 'Driver' column to provide this information. Sample
output:

 Class       Probed   Driver     Name
----------------------------------------
 root        [ + ]    root_drive root_driver
 keyboard    [ + ]    i8042_kbd  |-- keyboard
 serial      [ + ]    ns16550_se |-- serial
 rtc         [   ]    rtc_mc1468 |-- rtc
 timer       [ + ]    tsc_timer  |-- tsc-timer
 syscon      [ + ]    ich6_pinct |-- pch_pinctrl
 pci         [ + ]    pci_x86    |-- pci
 northbridge [ + ]    bd82x6x_no |   |-- northbridge@0,0
 video       [ + ]    bd82x6x_vi |   |-- gma@2,0
 vidconsole0 [ + ]    vidconsole |   |   `-- gma@2,0.vidconsole0
...

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
2017-08-02 12:12:02 -06:00
parent a0f9acb08b
commit ee3e520dad
1 changed files with 3 additions and 3 deletions
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6
drivers/core/dump.c
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@@ -16,8 +16,8 @@ static void show_devices(struct udevice *dev, int depth, int last_flag)
struct udevice *child; struct udevice *child;
/* print the first 11 characters to not break the tree-format. */ /* print the first 11 characters to not break the tree-format. */
printf(" %-10.10s [ %c ] ", dev->uclass->uc_drv->name, printf(" %-10.10s [ %c ] %-10.10s ", dev->uclass->uc_drv->name,
dev->flags & DM_FLAG_ACTIVATED ? '+' : ' '); dev->flags & DM_FLAG_ACTIVATED ? '+' : ' ', dev->driver->name);
for (i = depth; i >= 0; i--) { for (i = depth; i >= 0; i--) {
is_last = (last_flag >> i) & 1; is_last = (last_flag >> i) & 1;
@@ -48,7 +48,7 @@ void dm_dump_all(void)
root = dm_root(); root = dm_root();
if (root) { if (root) {
printf(" Class Probed Name\n"); printf(" Class Probed Driver Name\n");
printf("----------------------------------------\n"); printf("----------------------------------------\n");
show_devices(root, -1, 0); show_devices(root, -1, 0);
} }