Eric Lee / smarc-uboot

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Commit 2f3b95dbc78ce96b0f9f471e688db66223988419

Authored by Simon Glass
1 parent 040b69af72
Exists in v2017.01-smarct4x and in 39 other branches 8qm-imx_v2020.04_5.4.70_2.3.0, emb_lf_v2022.04, emb_lf_v2023.04, emb_lf_v2024.04, imx_v2015.04_4.1.15_1.0.0_ga, pitx_8mp_lf_v2020.04, smarc-8m-android-10.0.0_2.6.0, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc-imx6_v2018.03_4.14.98_2.0.0_ga, smarc-imx7_v2017.03_4.9.11_1.0.0_ga, smarc-imx7_v2018.03_4.14.98_2.0.0_ga, smarc-imx_v2015.04_4.1.15_1.0.0_ga, smarc-imx_v2017.03_4.9.11_1.0.0_ga, smarc-imx_v2017.03_4.9.88_2.0.0_ga, smarc-imx_v2017.03_o8.1.0_1.3.0_8m, smarc-imx_v2018.03_4.14.78_1.0.0_ga, smarc-m6.0.1_2.1.0-ga, smarc-n7.1.2_2.0.0-ga, smarc-rel_imx_4.1.15_2.0.0_ga, smarc_8m-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8m-imx_v2019.04_4.19.35_1.1.0, smarc_8m_00d0-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2018.03_4.14.98_2.0.0_ga, smarc_8mm-imx_v2019.04_4.19.35_1.1.0, smarc_8mm-imx_v2020.04_5.4.24_2.1.0, smarc_8mp_lf_v2020.04, smarc_8mq-imx_v2020.04_5.4.24_2.1.0, smarc_8mq_lf_v2020.04, ti-u-boot-2015.07, v2015.07-smarct33, v2015.07-smarct33-emmc, v2015.07-smarct4x, v2016.05-dlt, v2016.05-smarct3x, v2016.05-smarct3x-emmc, v2016.05-smarct4x, v2017.01-smarct3x, v2017.01-smarct3x-emmc

dm: core: Set device tree node for root device 

The root device corresponds to the root device tree node, so set this up.
Also add a few notes to the documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>

Showing 2 changed files with 7 additions and 0 deletions Side-by-side Diff

doc/driver-model/README.txt
Diff comments   View file @ 2f3b95d
... ... @@ -363,6 +363,10 @@
363 363 in your ofdata_to_platdata (or probe) method to allocate the required memory,
364 364 and you should free it in the remove method.
365 365  
  366 +The driver model tree is intended to mirror that of the device tree. The
  367 +root driver is at device tree offset 0 (the root node, '/'), and its
  368 +children are the children of the root node.
  369 +
366 370  
367 371 Declaring Uclasses
368 372 ------------------
... ... @@ -49,6 +49,9 @@
49 49 ret = device_bind_by_name(NULL, false, &root_info, &DM_ROOT_NON_CONST);
50 50 if (ret)
51 51 return ret;
  52 +#ifdef CONFIG_OF_CONTROL
  53 + DM_ROOT_NON_CONST->of_offset = 0;
  54 +#endif
52 55 ret = device_probe(DM_ROOT_NON_CONST);
53 56 if (ret)
54 57 return ret;