linux-aspeed: AST2600 ADC and PCA955x enhancements

These are backports of patches that are queued for v5.16.

Billy Tsai (14):
      iio: adc: aspeed: set driver data when adc probe.
      dt-bindings: iio: adc: Add ast2600-adc bindings
      iio: adc: aspeed: completes the bitfield declare.
      iio: adc: aspeed: Keep model data to driver data.
      iio: adc: aspeed: Restructure the model data
      iio: adc: aspeed: Add vref config function
      iio: adc: aspeed: Use model_data to set clk scaler.
      iio: adc: aspeed: Use devm_add_action_or_reset.
      iio: adc: aspeed: Support ast2600 adc.
      iio: adc: aspeed: Fix the calculate error of clock.
      iio: adc: aspeed: Add func to set sampling rate.
      iio: adc: aspeed: Add compensation phase.
      iio: adc: aspeed: Support battery sensing.
      iio: adc: aspeed: Get and set trimming data.

Eddie James (8):
      dt-bindings: leds: Add retain-state-shutdown boolean
      leds: leds-core: Implement the retain-state-shutdown property
      leds: pca955x: Clean up code formatting
      leds: pca955x: Add brightness_get function
      leds: pca955x: Implement the default-state property
      leds: pca955x: Let the core process the fwnode
      leds: pca955x: Switch to i2c probe_new
      ARM: dts: aspeed: Add ADC for AST2600 and enable for Rainier and Everest

Change-Id: I573e724eccbd79f000704ea893007447d6b2934f
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb b/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb
index db3eaac..b311fc1 100644
--- a/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb
+++ b/meta-aspeed/recipes-kernel/linux/linux-aspeed_git.bb
@@ -1,6 +1,6 @@
 KBRANCH ?= "dev-5.14"
 LINUX_VERSION ?= "5.14.6"
 
-SRCREV="5fa6722422299ba19d11579cf3cef038f183b80b"
+SRCREV="64984ac2f83a0505faf48b93051edacc700149b6"
 
 require linux-aspeed.inc