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dm: Switch over to use new sequence number for dev_seq()

Browse source 
Update this function to use the new sequence number and fix up the test
that deals with this.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2020-12-16 21:20:26 -07:00
parent 3bc90aa743
commit 981426e350
4 changed files with 38 additions and 33 deletions
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2
arch/sandbox/dts/test.dts
View file

@ -33,7 +33,7 @@
testfdt6 = "/e-test";
testbus3 = "/some-bus";
testfdt0 = "/some-bus/c-test@0";
testfdt1 = "/some-bus/c-test@1";
testfdt12 = "/some-bus/c-test@1";
testfdt3 = "/b-test";
testfdt5 = "/some-bus/c-test@5";
testfdt8 = "/a-test";

6
drivers/core/uclass.c
View file

@ -306,8 +306,7 @@ int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq,
uclass_foreach_dev(dev, uc) {
log_debug(" - %d %d '%s'\n",
dev->req_seq, dev_seq(dev), dev->name);
if ((find_req_seq ? dev->req_seq : dev_seq(dev)) ==
seq_or_req_seq) {
if (dev_seq(dev) == seq_or_req_seq) {
*devp = dev;
log_debug(" - found\n");
return 0;
@ -692,8 +691,7 @@ int uclass_resolve_seq(struct udevice *dev)
assert(dev_seq(dev) == -1);
ret = uclass_find_device_by_seq(uc_drv->id, dev->req_seq, false, &dup);
if (!ret) {
dm_warn("Device '%s': seq %d is in use by '%s'\n",
dev->name, dev->req_seq, dup->name);
/* Do nothing here for now */
} else if (ret == -ENODEV) {
/* Our requested sequence number is available */
if (dev->req_seq != -1)

2
include/dm/device.h
View file

@ -192,7 +192,7 @@ static inline bool dev_has_of_node(struct udevice *dev)
static inline int dev_seq(const struct udevice *dev)
{
return dev->seq;
return dev->sqq;
}
/**

61
test/dm/test-fdt.c
View file

@ -333,20 +333,28 @@ static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
/* A few basic santiy tests */
ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
ut_asserteq_str("b-test", dev->name);
ut_asserteq(3, dev_seq(dev));
ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
ut_asserteq_str("a-test", dev->name);
ut_asserteq(8, dev_seq(dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
true, &dev));
/*
* This device has no alias so gets the next value after all available
* aliases. The last alias is testfdt12
*/
ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 13, true, &dev));
ut_asserteq_str("d-test", dev->name);
ut_asserteq(13, dev_seq(dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 9, true,
&dev));
ut_asserteq_ptr(NULL, dev);
/* Test aliases */
ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
ut_asserteq_str("e-test", dev->name);
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
true, &dev));
ut_asserteq(6, dev_seq(dev));
/*
* Note that c-test nodes are not probed since it is not a top-level
@ -354,6 +362,7 @@ static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
*/
ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
ut_asserteq_str("b-test", dev->name);
ut_asserteq(3, dev_seq(dev));
/*
* d-test wants sequence number 3 also, but it can't have it because
@ -361,31 +370,29 @@ static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
*/
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
ut_asserteq_str("d-test", dev->name);
ut_asserteq(13, dev_seq(dev));
/*
* d-test actually gets 9, because thats the next free one after the
* aliases.
*/
ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 9, &dev));
ut_asserteq_str("d-test", dev->name);
/* g-test gets the next value after f-test */
ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 15, &dev));
ut_asserteq_str("g-test", dev->name);
ut_asserteq(15, dev_seq(dev));
/* initially no one wants seq 10 */
ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 10,
&dev));
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
/* But now that it is probed, we can find it */
ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 10, &dev));
ut_asserteq_str("f-test", dev->name);
/*
* And we should still have holes in our sequence numbers, that is 2
* and 4 should not be used.
*/
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 2,
/* And we should still have holes in our sequence numbers */
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 0, true,
&dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 1, true,
&dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 2, true,
&dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 4, true,
&dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7, true,
&dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 9, true,
&dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 10,
true, &dev));
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 4,
ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 11,
true, &dev));
return 0;