Eric Lee / smarc-uboot

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Commit 5dd4ff270dc387111f5feb85e4020adf2d60a32f

Authored by Ye Li
1 parent 21bb8ec6a9
Exists in smarc_8mm-imx_v2019.04_4.19.35_1.1.0 and in 1 other branch smarc_8m-imx_v2019.04_4.19.35_1.1.0

MLK-21850-1 dm: device: Check driver flag before setting default clocks 

Add a new driver FLAG (DM_FLAG_IGNORE_DEFAULT_CLKS). If any driver
is set with this flag, then when probing the device, we will skip
setting the default clocks.

This is useful when clock driver can't work with some device driver.

Signed-off-by: Ye Li <ye.li@nxp.com>

Showing 2 changed files with 9 additions and 3 deletions Side-by-side Diff

drivers/core/device.c
Diff comments   View file @ 5dd4ff2
... ... @@ -409,10 +409,13 @@
409 409 goto fail;
410 410 }
411 411  
  412 +
412 413 /* Process 'assigned-{clocks/clock-parents/clock-rates}' properties */
413   - ret = clk_set_defaults(dev);
414   - if (ret)
415   - goto fail;
  414 + if (!(dev->driver->flags & DM_FLAG_IGNORE_DEFAULT_CLKS)) {
  415 + ret = clk_set_defaults(dev);
  416 + if (ret)
  417 + goto fail;
  418 + }
416 419  
417 420 if (drv->probe) {
418 421 ret = drv->probe(dev);
... ... @@ -61,6 +61,9 @@
61 61 */
62 62 #define DM_FLAG_OS_PREPARE (1 << 10)
63 63  
  64 +/* DM should ignore the assign default clocks for this driver */
  65 +#define DM_FLAG_IGNORE_DEFAULT_CLKS (1 << 12)
  66 +
64 67 /*
65 68 * One or multiple of these flags are passed to device_remove() so that
66 69 * a selective device removal as specified by the remove-stage and the