At present we use a 'node' pointer in the of-platadata phandle_n_arg structs. This is a pointer to the struct driver_info for a particular device, and we can use it to obtain the struct udevice pointer itself.
Since we don't know the struct udevice pointer until it is allocated in memory, we have to fix up the phandle_n_arg.node at runtime. This is annoying since it requires that SPL's data is writable and adds a small amount of extra (generated) code in the dm_populate_phandle_data() function.
Now that we can find a driver_info by its index, it is easier to put the index in the phandle_n_arg structures.
Update dtoc to do this, add a new device_get_by_driver_info_idx() to look up a device by drive_info index and update the tests to match.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/clk/clk-uclass.c | 3 +-- drivers/core/device.c | 11 +++++++++++ drivers/misc/irq-uclass.c | 2 +- drivers/mmc/fsl_esdhc_imx.c | 7 ++----- include/dm/device.h | 14 ++++++++++++++ include/dt-structs.h | 6 +++--- test/dm/of_platdata.c | 10 +++++----- test/dm/test-main.c | 24 ++++++++++++++++++++---- test/py/tests/test_spl.py | 5 ++--- tools/dtoc/dtb_platdata.py | 20 ++++---------------- tools/dtoc/test_dtoc.py | 33 +++++++++++---------------------- 11 files changed, 74 insertions(+), 61 deletions(-)
diff --git a/drivers/clk/clk-uclass.c b/drivers/clk/clk-uclass.c index 934cd5787a5..c56bc71e387 100644 --- a/drivers/clk/clk-uclass.c +++ b/drivers/clk/clk-uclass.c @@ -37,8 +37,7 @@ int clk_get_by_driver_info(struct udevice *dev, struct phandle_1_arg *cells, { int ret;
- ret = device_get_by_driver_info((struct driver_info *)cells->node, - &clk->dev); + ret = device_get_by_driver_info_idx(cells->idx, &clk->dev); if (ret) return ret; clk->id = cells->arg[0]; diff --git a/drivers/core/device.c b/drivers/core/device.c index c3338efc4fa..522d2ffe7e3 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -750,6 +750,17 @@ int device_get_by_driver_info(const struct driver_info *info,
return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp); } + +int device_get_by_driver_info_idx(uint idx, struct udevice **devp) +{ + struct driver_rt *drt = gd_dm_driver_rt() + idx; + struct udevice *dev; + + dev = drt->dev; + *devp = NULL; + + return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp); +} #endif
int device_find_first_child(const struct udevice *parent, struct udevice **devp) diff --git a/drivers/misc/irq-uclass.c b/drivers/misc/irq-uclass.c index 94fa233f193..24b27962a7d 100644 --- a/drivers/misc/irq-uclass.c +++ b/drivers/misc/irq-uclass.c @@ -69,7 +69,7 @@ int irq_get_by_driver_info(struct udevice *dev, { int ret;
- ret = device_get_by_driver_info(cells->node, &irq->dev); + ret = device_get_by_driver_info_idx(cells->idx, &irq->dev); if (ret) return ret; irq->id = cells->arg[0]; diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c index 0c866b168f9..ed04d1f964c 100644 --- a/drivers/mmc/fsl_esdhc_imx.c +++ b/drivers/mmc/fsl_esdhc_imx.c @@ -1511,12 +1511,9 @@ static int fsl_esdhc_probe(struct udevice *dev)
if (CONFIG_IS_ENABLED(DM_GPIO) && !priv->non_removable) { struct udevice *gpiodev; - struct driver_info *info; - - info = (struct driver_info *)dtplat->cd_gpios->node; - - ret = device_get_by_driver_info(info, &gpiodev);
+ ret = device_get_by_driver_info(dtplat->cd_gpios->idx, + &gpiodev); if (ret) return ret;
diff --git a/include/dm/device.h b/include/dm/device.h index ac3b6c1b8a0..c00bee1ccb0 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -553,6 +553,20 @@ int device_get_global_by_ofnode(ofnode node, struct udevice **devp); int device_get_by_driver_info(const struct driver_info *info, struct udevice **devp);
+/** + * device_get_by_driver_info_idx() - Get a device based on driver_info index + * + * Locates a device by its struct driver_info, by using its index number which + * is written into the idx field of struct phandle_1_arg, etc. + * + * The device is probed to activate it ready for use. + * + * @idx: Index number of the driver_info structure (0=first) + * @devp: Returns pointer to device if found, otherwise this is set to NULL + * @return 0 if OK, -ve on error + */ +int device_get_by_driver_info_idx(uint idx, struct udevice **devp); + /** * device_find_first_child() - Find the first child of a device * diff --git a/include/dt-structs.h b/include/dt-structs.h index eed8273d18e..f0e1c9cb901 100644 --- a/include/dt-structs.h +++ b/include/dt-structs.h @@ -11,17 +11,17 @@ struct driver_info;
struct phandle_0_arg { - const struct driver_info *node; + uint idx; int arg[0]; };
struct phandle_1_arg { - const struct driver_info *node; + uint idx; int arg[1]; };
struct phandle_2_arg { - const struct driver_info *node; + uint idx; int arg[2]; }; #include <generated/dt-structs-gen.h> diff --git a/test/dm/of_platdata.c b/test/dm/of_platdata.c index bad733fbee0..4f3cc159d03 100644 --- a/test/dm/of_platdata.c +++ b/test/dm/of_platdata.c @@ -183,22 +183,22 @@ static int dm_test_of_platdata_phandle(struct unit_test_state *uts) ut_asserteq_str("sandbox_clk_test", dev->name); plat = dev_get_platdata(dev);
- ut_assertok(device_get_by_driver_info(plat->clocks[0].node, &clk)); + ut_assertok(device_get_by_driver_info_idx(plat->clocks[0].idx, &clk)); ut_asserteq_str("fixed_clock", clk->name);
- ut_assertok(device_get_by_driver_info(plat->clocks[1].node, &clk)); + ut_assertok(device_get_by_driver_info_idx(plat->clocks[1].idx, &clk)); ut_asserteq_str("sandbox_clk", clk->name); ut_asserteq(1, plat->clocks[1].arg[0]);
- ut_assertok(device_get_by_driver_info(plat->clocks[2].node, &clk)); + ut_assertok(device_get_by_driver_info_idx(plat->clocks[2].idx, &clk)); ut_asserteq_str("sandbox_clk", clk->name); ut_asserteq(0, plat->clocks[2].arg[0]);
- ut_assertok(device_get_by_driver_info(plat->clocks[3].node, &clk)); + ut_assertok(device_get_by_driver_info_idx(plat->clocks[3].idx, &clk)); ut_asserteq_str("sandbox_clk", clk->name); ut_asserteq(3, plat->clocks[3].arg[0]);
- ut_assertok(device_get_by_driver_info(plat->clocks[4].node, &clk)); + ut_assertok(device_get_by_driver_info_idx(plat->clocks[4].idx, &clk)); ut_asserteq_str("sandbox_clk", clk->name); ut_asserteq(2, plat->clocks[4].arg[0]);
diff --git a/test/dm/test-main.c b/test/dm/test-main.c index 9d22df8c4dc..fd24635006c 100644 --- a/test/dm/test-main.c +++ b/test/dm/test-main.c @@ -127,6 +127,24 @@ static bool dm_test_run_on_flattree(struct unit_test *test) return !strstr(fname, "video") || strstr(test->name, "video_base"); }
+static bool test_matches(const char *test_name, const char *find_name) +{ + if (!find_name) + return true; + + if (!strcmp(test_name, find_name)) + return true; + + /* All tests have this prefix */ + if (!strncmp(test_name, "dm_test_", 8)) + test_name += 8; + + if (!strcmp(test_name, find_name)) + return true; + + return false; +} + int dm_test_main(const char *test_name) { struct unit_test *tests = ll_entry_start(struct unit_test, dm_test); @@ -152,6 +170,7 @@ int dm_test_main(const char *test_name)
if (!test_name) printf("Running %d driver model tests\n", n_ents); + else
found = 0; uts->of_root = gd_of_root(); @@ -159,10 +178,7 @@ int dm_test_main(const char *test_name) const char *name = test->name; int runs;
- /* All tests have this prefix */ - if (!strncmp(name, "dm_test_", 8)) - name += 8; - if (test_name && strcmp(test_name, name)) + if (!test_matches(name, test_name)) continue;
/* Run with the live tree if possible */ diff --git a/test/py/tests/test_spl.py b/test/py/tests/test_spl.py index 58a851e5ec8..d2b99027ce6 100644 --- a/test/py/tests/test_spl.py +++ b/test/py/tests/test_spl.py @@ -20,10 +20,9 @@ def test_spl(u_boot_console, ut_spl_subtest):
Args: u_boot_console (ConsoleBase): U-Boot console - ut_subtest (str): test to be executed via command ut, e.g 'foo bar' to - execute command 'ut foo bar' + ut_subtest (str): SPL test to be executed (e.g. 'dm platdata_phandle') """ cons = u_boot_console - cons.restart_uboot_with_flags(['-u', ut_spl_subtest]) + cons.restart_uboot_with_flags(['-u', '-k', ut_spl_subtest.split()[1]]) output = cons.get_spawn_output().replace('\r', '') assert 'Failures: 0' in output diff --git a/tools/dtoc/dtb_platdata.py b/tools/dtoc/dtb_platdata.py index 8832e6ebecb..2be11fff6c2 100644 --- a/tools/dtoc/dtb_platdata.py +++ b/tools/dtoc/dtb_platdata.py @@ -154,8 +154,6 @@ class DtbPlatdata(object): key: Driver alias declared with U_BOOT_DRIVER_ALIAS(driver_alias, driver_name) value: Driver name declared with U_BOOT_DRIVER(driver_name) - _links: List of links to be included in dm_populate_phandle_data(), - each a PhandleLink _drivers_additional: List of additional drivers to use during scanning """ def __init__(self, dtb_fname, include_disabled, warning_disabled, @@ -169,7 +167,6 @@ class DtbPlatdata(object): self._lines = [] self._drivers = [] self._driver_aliases = {} - self._links = [] self._drivers_additional = drivers_additional
def get_normalized_compat_name(self, node): @@ -612,17 +609,11 @@ class DtbPlatdata(object): name = conv_name_to_c(target_node.name) arg_values = [] for i in range(args): - arg_values.append(str(fdt_util.fdt32_to_cpu(prop.value[pos + 1 + i]))) + arg_values.append( + str(fdt_util.fdt32_to_cpu(prop.value[pos + 1 + i]))) pos += 1 + args - # node member is filled with NULL as the real value - # will be update at run-time during dm_init_and_scan() - # by dm_populate_phandle_data() - vals.append('\t{NULL, {%s}}' % (', '.join(arg_values))) - var_node = '%s%s.%s[%d].node' % \ - (VAL_PREFIX, var_name, member_name, item) - # Save the the link information to be use to define - # dm_populate_phandle_data() - self._links.append(PhandleLink(var_node, name)) + vals.append('\t{%d, {%s}}' % (target_node.idx, + ', '.join(arg_values))) item += 1 for val in vals: self.buf('\n\t\t%s,' % val) @@ -703,9 +694,6 @@ class DtbPlatdata(object): # nodes using DM_GET_DEVICE # dtv_dmc_at_xxx.clocks[0].node = DM_GET_DEVICE(clock_controller_at_xxx) self.buf('void dm_populate_phandle_data(void) {\n') - for link in self._links: - self.buf('\t%s = DM_GET_DEVICE(%s);\n' % - (link.var_node, link.dev_name)) self.buf('}\n')
self.out(''.join(self.get_buf())) diff --git a/tools/dtoc/test_dtoc.py b/tools/dtoc/test_dtoc.py index fee9853d034..8e16dc0f0fa 100755 --- a/tools/dtoc/test_dtoc.py +++ b/tools/dtoc/test_dtoc.py @@ -419,10 +419,10 @@ U_BOOT_DEVICE(phandle_target) = { /* Node /phandle-source index 2 */ static struct dtd_source dtv_phandle_source = { \t.clocks\t\t\t= { -\t\t\t{NULL, {}}, -\t\t\t{NULL, {11}}, -\t\t\t{NULL, {12, 13}}, -\t\t\t{NULL, {}},}, +\t\t\t{4, {}}, +\t\t\t{0, {11}}, +\t\t\t{1, {12, 13}}, +\t\t\t{4, {}},}, }; U_BOOT_DEVICE(phandle_source) = { \t.name\t\t= "source", @@ -434,7 +434,7 @@ U_BOOT_DEVICE(phandle_source) = { /* Node /phandle-source2 index 3 */ static struct dtd_source dtv_phandle_source2 = { \t.clocks\t\t\t= { -\t\t\t{NULL, {}},}, +\t\t\t{4, {}},}, }; U_BOOT_DEVICE(phandle_source2) = { \t.name\t\t= "source", @@ -444,11 +444,6 @@ U_BOOT_DEVICE(phandle_source2) = { };
void dm_populate_phandle_data(void) { -\tdtv_phandle_source.clocks[0].node = DM_GET_DEVICE(phandle_target); -\tdtv_phandle_source.clocks[1].node = DM_GET_DEVICE(phandle2_target); -\tdtv_phandle_source.clocks[2].node = DM_GET_DEVICE(phandle3_target); -\tdtv_phandle_source.clocks[3].node = DM_GET_DEVICE(phandle_target); -\tdtv_phandle_source2.clocks[0].node = DM_GET_DEVICE(phandle_target); } ''', data)
@@ -489,7 +484,7 @@ U_BOOT_DEVICE(phandle_target) = { /* Node /phandle-source2 index 0 */ static struct dtd_source dtv_phandle_source2 = { \t.clocks\t\t\t= { -\t\t\t{NULL, {}},}, +\t\t\t{1, {}},}, }; U_BOOT_DEVICE(phandle_source2) = { \t.name\t\t= "source", @@ -499,7 +494,6 @@ U_BOOT_DEVICE(phandle_source2) = { };
void dm_populate_phandle_data(void) { -\tdtv_phandle_source2.clocks[0].node = DM_GET_DEVICE(phandle_target); } ''', data)
@@ -547,10 +541,10 @@ U_BOOT_DEVICE(phandle_target) = { /* Node /phandle-source index 2 */ static struct dtd_source dtv_phandle_source = { \t.cd_gpios\t\t= { -\t\t\t{NULL, {}}, -\t\t\t{NULL, {11}}, -\t\t\t{NULL, {12, 13}}, -\t\t\t{NULL, {}},}, +\t\t\t{4, {}}, +\t\t\t{0, {11}}, +\t\t\t{1, {12, 13}}, +\t\t\t{4, {}},}, }; U_BOOT_DEVICE(phandle_source) = { \t.name\t\t= "source", @@ -562,7 +556,7 @@ U_BOOT_DEVICE(phandle_source) = { /* Node /phandle-source2 index 3 */ static struct dtd_source dtv_phandle_source2 = { \t.cd_gpios\t\t= { -\t\t\t{NULL, {}},}, +\t\t\t{4, {}},}, }; U_BOOT_DEVICE(phandle_source2) = { \t.name\t\t= "source", @@ -572,11 +566,6 @@ U_BOOT_DEVICE(phandle_source2) = { };
void dm_populate_phandle_data(void) { -\tdtv_phandle_source.cd_gpios[0].node = DM_GET_DEVICE(phandle_target); -\tdtv_phandle_source.cd_gpios[1].node = DM_GET_DEVICE(phandle2_target); -\tdtv_phandle_source.cd_gpios[2].node = DM_GET_DEVICE(phandle3_target); -\tdtv_phandle_source.cd_gpios[3].node = DM_GET_DEVICE(phandle_target); -\tdtv_phandle_source2.cd_gpios[0].node = DM_GET_DEVICE(phandle_target); } ''', data)