kernel: lirc_rpi: Lower IR reception error to debug

See: raspberrypi/linux#1361

kernel: vchiq_arm: Access the dequeue_pending flag locked
See: raspberrypi/linux@a7419d5

kernel: BCM270X_DT: Add pi3-act-led overlay
See: raspberrypi/linux#1363

firmware: sdram: cache the last set_frequency
firmware: pwm_sdm: Set SDRAM turbo frequency to default if pwm_sdm is enabled
See: https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=136445

firmware: vchiq_lib: Don't overwrite loop count mid-loop
See: https://discourse.osmc.tv/t/frequent-random-muting-then-freezing/9875/104

firmware: arm_loader: Change mini-UART initialisation order
See: #553

Author: popcornmix

boot/fixup.dat

@@ -136,12 +136,14 @@ Params:
 
         act_led_activelow       Set to "on" to invert the sense of the LED
                                 (default "off")
+                                N.B. For Pi3 see pi3-act-led overlay.
 
         act_led_gpio            Set which GPIO to use for the activity LED
                                 (in case you want to connect it to an external
                                 device)
                                 (default "16" on a non-Plus board, "47" on a
                                 Plus or Pi 2)
+                                N.B. For Pi3 see pi3-act-led overlay.
 
         pwr_led_trigger
         pwr_led_activelow
@@ -478,6 +480,23 @@ Params: speed                   Display SPI bus speed
 [ The pcf8563-rtc overlay has been deleted. See i2c-rtc. ]
 
 
+Name:   pi3-act-led
+Info:   Pi3 uses a GPIO expander to drive the LEDs which can only be accessed
+        from the VPU. There is a special driver for this with a separate DT
+        node, which has the unfortunate consequence of breaking the
+        act_led_gpio and act_led_activelow dtparams.
+        This overlay changes the GPIO controller back to the standard one and
+        restores the dtparams.
+Load:   dtoverlay=pi3-act-led,<param>=<val>
+Params: activelow               Set to "on" to invert the sense of the LED
+                                (default "off")
+
+        gpio                    Set which GPIO to use for the activity LED
+                                (in case you want to connect it to an external
+                                device)
+                                REQUIRED
+
+
 Name:   pi3-disable-bt
 Info:   Disable Pi3 Bluetooth and restore UART0/ttyAMA0 over GPIOs 14 & 15
         N.B. To disable the systemd service that initialises the modem so it