samples: led: consolidate LED samples under same directory

With over a dozen LED samples, grouping them in a common drivers/led/
folder helps keep things tidy and lays the groundwork for further
improvements in the way samples are showing up in the docs.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

MAINTAINERS.yml

@@ -1739,7 +1739,7 @@ Release Notes:
     - drivers/led/
     - include/zephyr/drivers/led/
     - include/zephyr/drivers/led.h
-    - samples/drivers/led_*/
+    - samples/drivers/led/
     - tests/drivers/led/
     - doc/hardware/peripherals/led.rst
     - tests/drivers/build_all/led/

boards/bcdevices/plt_demo_v2/doc/index.rst

@@ -125,7 +125,7 @@ an external programmer. The programmer is attached to the SWD header.
 Build the Zephyr kernel and the :zephyr:code-sample:`led-strip` sample application.
 
    .. zephyr-app-commands::
-      :zephyr-app: samples/drivers/led_apa102
+      :zephyr-app: samples/drivers/led/apa102
       :board: blueclover_plt_demo_v2/nrf52832
       :goals: build
       :compact:
@@ -133,7 +133,7 @@ Build the Zephyr kernel and the :zephyr:code-sample:`led-strip` sample applicati
 Flash the image.
 
    .. zephyr-app-commands::
-      :zephyr-app: samples/drivers/led_apa102
+      :zephyr-app: samples/drivers/led/apa102
       :board: blueclover_plt_demo_v2/nrf52832
       :goals: flash
       :compact:

boards/shields/adafruit_neopixel_grid_bff/doc/index.rst

@@ -39,7 +39,7 @@ LED Strip Example
 Set ``--shield adafruit_neopixel_grid_bff`` when you invoke ``west build``. For example:
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_strip
+   :zephyr-app: samples/drivers/led/led_strip
    :board: adafruit_qt_py_rp2040
    :shield: adafruit_neopixel_grid_bff
    :goals: build

boards/shields/adafruit_pca9685/doc/index.rst

@@ -31,7 +31,7 @@ Set ``--shield adafruit_pca9685`` when you invoke ``west build``.
 For example:
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_pwm
+   :zephyr-app: samples/drivers/led/pwm
    :board: nrf52840dk/nrf52840
    :shield: adafruit_pca9685
    :goals: build

boards/vcc-gnd/yd_esp32/doc/index.rst

@@ -239,7 +239,7 @@ The board contains an addressable RGB LED (`XL-5050RGBC-WS2812B`_), driven by GP
 Here is an example of how to test it using the :zephyr:code-sample:`led-strip` application.
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_strip
+   :zephyr-app: samples/drivers/led/led_strip
    :board: yd_esp32/esp32/procpu
    :goals: flash
 

doc/_scripts/redirects.py

@@ -221,8 +221,20 @@ REDIRECTS = [
     ('samples/drivers/adc/README', 'samples/drivers/adc/adc_dt/README'),
     ('samples/drivers/kscan_touch', 'samples/subsys/input/input'),
     ('samples/drivers/led_apa102/README', 'samples/drivers/led_strip/README'),
+    ('samples/drivers/led_is31fl3194/README', 'samples/drivers/led/is31fl3194/README'),
+    ('samples/drivers/led_is31fl3216a/README', 'samples/drivers/led/is31fl3216a/README'),
+    ('samples/drivers/led_is31fl3733/README', 'samples/drivers/led/is31fl3733/README'),
+    ('samples/drivers/led_lp3943/README', 'samples/drivers/led/lp3943/README'),
+    ('samples/drivers/led_lp50xx/README', 'samples/drivers/led/lp50xx/README'),
+    ('samples/drivers/led_lp5562/README', 'samples/drivers/led/lp5562/README'),
+    ('samples/drivers/led_lp5569/README', 'samples/drivers/led/lp5569/README'),
     ('samples/drivers/led_lpd8806/README', 'samples/drivers/led_strip/README'),
+    ('samples/drivers/led_pca9633/README', 'samples/drivers/led/pca9633/README'),
+    ('samples/drivers/led_pwm/README', 'samples/drivers/led/pwm/README'),
+    ('samples/drivers/led_strip/README', 'samples/drivers/led/led_strip/README'),
+    ('samples/drivers/led_sx1509b_intensity/README', 'samples/drivers/led/sx1509b_intensity/README'),
     ('samples/drivers/led_ws2812/README', 'samples/drivers/led_strip/README'),
+    ('samples/drivers/led_xec/README', 'samples/drivers/led/xec/README'),
     ('samples/net/cloud/google_iot_mqtt/README', 'samples/net/net'),
     ('samples/sensor/wsen_hids/README', 'samples/sensor/sensor'),
     ('samples/sensor/wsen_itds/README', 'samples/sensor/sensor'),

doc/releases/release-notes-4.0.rst

@@ -164,6 +164,8 @@ Drivers and Sensors
 
   * lp5569: added ``enable-gpios`` property to describe the EN/PWM GPIO of the lp5569.
 
+  * LED code samples have been consolidated under the :zephyr_file:`samples/drivers/led` directory.
+
 * LED Strip
 
 * LoRa

samples/drivers/led/led_strip/README.rst

@@ -2,7 +2,7 @@
    :name: LED strip
    :relevant-api: led_strip_interface
 
-   Control an LED strip example.
+   Control an LED strip.
 
 Overview
 ********
@@ -68,7 +68,7 @@ modified by changing the :kconfig:option:`CONFIG_SAMPLE_LED_UPDATE_DELAY`.
 Then build and flash the application:
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_strip
+   :zephyr-app: samples/drivers/led/led_strip
    :board: <board>
    :goals: flash
    :compact:

samples/drivers/led/lp3943/README.rst

@@ -25,7 +25,7 @@ Build the application for the :ref:`96b_neonkey` board, which has an
 LP3943 driver included.
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_lp3943
+   :zephyr-app: samples/drivers/led/lp3943
    :board: 96b_neonkey
    :goals: build
    :compact:

samples/drivers/led/lp5562/README.rst

@@ -34,7 +34,7 @@ Build the application for the :ref:`nrf52840dk_nrf52840` board, and connect
 a LP5562 LED driver on the bus I2C0 at the address 0x30.
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_lp5562
+   :zephyr-app: samples/drivers/led/lp5562
    :board: nrf52840dk/nrf52840
    :goals: build
    :compact:

samples/drivers/led/lp5569/README.rst

@@ -17,7 +17,7 @@ Build the application for the :ref:`nrf52840dk_nrf52840` board, and connect
 a LP5569 LED controller on the bus I2C0 at the address 0x32.
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_lp5569
+   :zephyr-app: samples/drivers/led/lp5569
    :board: nrf52840dk/nrf52840
    :goals: build
    :compact:

samples/drivers/led/pca9633/README.rst

@@ -24,7 +24,7 @@ Build the application for the :ref:`nucleo_f334r8_board` board, and connect
 a PCA9633 LED driver on the bus I2C Arduino.
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/drivers/led_pca9633
+   :zephyr-app: samples/drivers/led/pca9633
    :board: nucleo_f334r8_board
    :goals: build
    :compact: