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boards: renesas: da1469x_dk_pro: Update default settings

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This commit should deal with optimizing device's
operation in terms of power consumption. In this
context:

1. Power and rail managers are enabled so that the
   device can enter the sleep state and power
   rails be set to the min. required levels.

2. Peripheral blocks should be enabled only when
   there is need to do so.

3. Define the internal RCX oscillator as default
   low power clock. RC32K should not be used as
   it drifts significantly due to temperature and
   voltage variations. Thus, affecting the whole
   system stability regardless of its calibration.

4. PLL should be enabled only when requested and
   on board level LP clock should be switched to
   XTAL32K to avoid overhead due to RCX calibration.

Signed-off-by: Ioannis Karachalios <ioannis.karachalios.px@renesas.com>
This commit is contained in:
Ioannis Karachalios 2024-05-28 12:32:15 +03:00 • committed by Carles Cufí
commit 99deccfe53
6 changed files with 33 additions and 14 deletions
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18
boards/renesas/da1469x_dk_pro/Kconfig.defconfig
View file

@ -5,6 +5,20 @@
if BOARD_DA1469X_DK_PRO
# Enable sleep and voltage rails manager so that
# the device consumes the lowest possible current
config PM
default y
config PM_DEVICE
default y
config REGULATOR
default y
config I2C_CALLBACK
default y if I2C_SMARTBOND
if LVGL
config LV_Z_BITS_PER_PIXEL
@ -34,7 +48,7 @@ config LV_Z_POINTER_INPUT_MSGQ_COUNT
endif # INPUT
#if PM || PM_DEVICE || PM_DEVICE_RUNTIME
if PM || PM_DEVICE || PM_DEVICE_RUNTIME
# Increase stack size to avoid raising usage-fault
# exceptions due to stack overflow.
@ -46,7 +60,7 @@ config IDLE_STACK_SIZE
config SERIAL_INIT_PRIORITY
default KERNEL_INIT_PRIORITY_DEFAULT
#endif # PM || PM_DEVICE
endif # PM || PM_DEVICE
if BT

15
boards/renesas/da1469x_dk_pro/da1469x_dk_pro.dts
View file

@ -139,6 +139,14 @@ zephyr_udc0: &usbd {
status = "okay";
};
/*
* On board level we switch to XTAL32K and
* so RCX can be disabled.
*/
&rcx {
status = "disabled";
};
&lp_clk {
clock-src = <&xtal32k>;
};
@ -147,32 +155,25 @@ zephyr_udc0: &usbd {
clock-src = <&xtal32m>;
};
&pll {
status = "okay";
};
&i2c {
status = "okay";
pinctrl-0 = <&i2c_default>;
pinctrl-1 = <&i2c_sleep>;
pinctrl-names = "default", "sleep";
};
&i2c2 {
status = "okay";
pinctrl-0 = <&i2c2_default>;
pinctrl-1 = <&i2c2_sleep>;
pinctrl-names = "default", "sleep";
};
&spi {
status = "okay";
pinctrl-0 = <&spi_controller>;
pinctrl-1 = <&spi_sleep>;
pinctrl-names = "default", "sleep";
};
&spi2 {
status = "okay";
pinctrl-0 = <&spi2_controller>;
pinctrl-1 = <&spi2_sleep>;
pinctrl-names = "default", "sleep";

3
boards/renesas/da1469x_dk_pro/da1469x_dk_pro_defconfig
View file

@ -9,6 +9,3 @@ CONFIG_UART_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_BUILD_OUTPUT_HEX=n
CONFIG_I2C=y
CONFIG_I2C_CALLBACK=y

1
boards/renesas/da1469x_dk_pro/dts/da1469x_dk_pro_lcdc.overlay
View file

@ -43,6 +43,7 @@
&i2c2 {
clock-frequency = <400000>;
status = "okay";
display_touch: ft6206@38 {
compatible = "focaltech,ft5336";

5
boards/renesas/da1469x_dk_pro/dts/da1469x_dk_pro_mipi_dbi.overlay
View file

@ -23,6 +23,7 @@
&i2c2 {
clock-frequency = <400000>;
status = "okay";
display_touch: ft6206@38 {
compatible = "focaltech,ft5336";
@ -32,6 +33,10 @@
};
};
&spi2 {
status = "okay";
};
&lcdc {
compatible = "renesas,smartbond-mipi-dbi";
status = "okay";