2 files changed, 21 insertions, 1 deletions
diff --git a/Documentation/driver-api/cxl/memory-devices.rst b/Documentation/driver-api/cxl/memory-devices.rst
index 5149ecdc53c7..d732c42526df 100644
--- a/Documentation/driver-api/cxl/memory-devices.rst
+++ b/Documentation/driver-api/cxl/memory-devices.rst
@@ -328,6 +328,12 @@ CXL Memory Device
 .. kernel-doc:: drivers/cxl/mem.c
    :doc: cxl mem
 
+.. kernel-doc:: drivers/cxl/cxlmem.h
+   :internal:
+
+.. kernel-doc:: drivers/cxl/core/memdev.c
+   :identifiers:
+
 CXL Port
 --------
 .. kernel-doc:: drivers/cxl/port.c
@@ -341,6 +347,15 @@ CXL Core
 .. kernel-doc:: drivers/cxl/cxl.h
    :internal:
 
+.. kernel-doc:: drivers/cxl/core/hdm.c
+   :doc: cxl core hdm
+
+.. kernel-doc:: drivers/cxl/core/hdm.c
+   :identifiers:
+
+.. kernel-doc:: drivers/cxl/core/cdat.c
+   :identifiers:
+
 .. kernel-doc:: drivers/cxl/core/port.c
    :doc: cxl core
 
diff --git a/Documentation/driver-api/gpio/drivers-on-gpio.rst b/Documentation/driver-api/gpio/drivers-on-gpio.rst
index af632d764ac6..95572d2a94ce 100644
--- a/Documentation/driver-api/gpio/drivers-on-gpio.rst
+++ b/Documentation/driver-api/gpio/drivers-on-gpio.rst
@@ -27,7 +27,12 @@ hardware descriptions such as device tree or ACPI:
   to the lines for a more permanent solution of this type.
 
 - gpio-beeper: drivers/input/misc/gpio-beeper.c is used to provide a beep from
-  an external speaker connected to a GPIO line.
+  an external speaker connected to a GPIO line. (If the beep is controlled by
+  off/on, for an actual PWM waveform, see pwm-gpio below.)
+
+- pwm-gpio: drivers/pwm/pwm-gpio.c is used to toggle a GPIO with a high
+  resolution timer producing a PWM waveform on the GPIO line, as well as
+  Linux high resolution timers can do.
 
 - extcon-gpio: drivers/extcon/extcon-gpio.c is used when you need to read an
   external connector status, such as a headset line for an audio driver or an