Re: [PATCH] ARM: dts: stm32: omit unused pinctrl groups from stm32mp13 dtb files

Alexandre TORGUE <alexandre.torgue@xxxxxxxxxxx> · Thu, 4 Jul 2024 18:40:49 +0200

Hi Marek

On 6/29/24 22:36, Marek Vasut wrote:
stm32mp13-pinctrl.dtsi contains nearly all pinctrl groups collected from
all boards. Most of them end up unused by a board and only waste binary
space. Add /omit-if-no-ref/ to the groups to scrub the unused groups
from the dtbs.

Use the following regex to update the file and drop two useless newlines too:
s@^\t[^:]\+: [^ ]\+ {$@\t/omit-if-no-ref/\r&@

I understand the aim of this patch but I'm just wondering about DT 
overlay that would need one of those configurations. IMO, in this case 
the DT overlay will not apply.

Alex

Signed-off-by: Marek Vasut <marex@xxxxxxx>
---
Cc: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>
Cc: Christophe Roullier <christophe.roullier@xxxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Maxime Coquelin <mcoquelin.stm32@xxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: kernel@xxxxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
---
  arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi | 92 ++++++++++++++++++++-
  1 file changed, 90 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi b/arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi
index d3deec602ae7a..ca19c8c6b6771 100644
--- a/arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp13-pinctrl.dtsi
@@ -6,12 +6,14 @@
  #include <dt-bindings/pinctrl/stm32-pinfunc.h>
  
  &pinctrl {
+	/omit-if-no-ref/
  	adc1_pins_a: adc1-pins-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 3, ANALOG)>; /* ADC1 in12 */
  		};
  	};
  
+	/omit-if-no-ref/
  	adc1_usb_cc_pins_a: adc1-usb-cc-pins-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 12, ANALOG)>, /* ADC1 in6 */
@@ -19,6 +21,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	adc1_usb_cc_pins_b: adc1-usb-cc-pins-1 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 5, ANALOG)>, /* ADC1_INP2 */
@@ -26,6 +29,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	dcmipp_pins_a: dcmi-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H',  8,  AF13)>,/* DCMI_HSYNC */
@@ -43,6 +47,7 @@ pins1 {
  		};
  	};
  
+	/omit-if-no-ref/
  	dcmipp_sleep_pins_a: dcmi-sleep-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H',  8,  ANALOG)>,/* DCMI_HSYNC */
@@ -59,6 +64,7 @@ pins1 {
  		};
  	};
  
+	/omit-if-no-ref/
  	eth1_rgmii_pins_a: eth1-rgmii-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('G', 13, AF11)>, /* ETH_RGMII_TXD0 */
@@ -83,9 +89,9 @@ pins2 {
  				 <STM32_PINMUX('D', 7, AF10)>; /* ETH_RGMII_RX_CLK */
  			bias-disable;
  		};
-
  	};
  
+	/omit-if-no-ref/
  	eth1_rgmii_sleep_pins_a: eth1-rgmii-sleep-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('G', 13, ANALOG)>, /* ETH_RGMII_TXD0 */
@@ -105,6 +111,7 @@ pins1 {
  		};
  	};
  
+	/omit-if-no-ref/
  	eth1_rmii_pins_a: eth1-rmii-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('G', 13, AF11)>, /* ETH_RMII_TXD0 */
@@ -124,9 +131,9 @@ pins2 {
  				 <STM32_PINMUX('C', 1, AF10)>; /* ETH_RMII_CRS_DV */
  			bias-disable;
  		};
-
  	};
  
+	/omit-if-no-ref/
  	eth1_rmii_sleep_pins_a: eth1-rmii-sleep-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('G', 13, ANALOG)>, /* ETH_RMII_TXD0 */
@@ -141,6 +148,7 @@ pins1 {
  		};
  	};
  
+	/omit-if-no-ref/
  	eth2_rgmii_pins_a: eth2-rgmii-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('F', 7, AF11)>, /* ETH_RGMII_TXD0 */
@@ -167,6 +175,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	eth2_rgmii_sleep_pins_a: eth2-rgmii-sleep-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('F', 7, ANALOG)>, /* ETH_RGMII_TXD0 */
@@ -186,6 +195,7 @@ pins1 {
  		};
  	};
  
+	/omit-if-no-ref/
  	eth2_rmii_pins_a: eth2-rmii-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('F', 7, AF11)>, /* ETH_RMII_TXD0 */
@@ -207,6 +217,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	eth2_rmii_sleep_pins_a: eth2-rmii-sleep-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('F', 7, ANALOG)>, /* ETH_RMII_TXD0 */
@@ -221,6 +232,7 @@ pins1 {
  		};
  	};
  
+	/omit-if-no-ref/
  	goodix_pins_a: goodix-0 {
  		/*
  		 * touchscreen reset needs to be configured
@@ -243,6 +255,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	i2c1_pins_a: i2c1-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 12, AF5)>, /* I2C1_SCL */
@@ -253,6 +266,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	i2c1_sleep_pins_a: i2c1-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 12, ANALOG)>, /* I2C1_SCL */
@@ -260,6 +274,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	i2c5_pins_a: i2c5-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 1, AF4)>, /* I2C5_SCL */
@@ -270,6 +285,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	i2c5_sleep_pins_a: i2c5-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 1, ANALOG)>, /* I2C5_SCL */
@@ -277,6 +293,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	i2c5_pins_b: i2c5-1 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 1, AF4)>, /* I2C5_SCL */
@@ -287,6 +304,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	i2c5_sleep_pins_b: i2c5-sleep-1 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 1, ANALOG)>, /* I2C5_SCL */
@@ -294,6 +312,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	ltdc_pins_a: ltdc-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D',  9, AF13)>, /* LCD_CLK */
@@ -324,6 +343,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	ltdc_sleep_pins_a: ltdc-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D',  9, ANALOG)>, /* LCD_CLK */
@@ -351,6 +371,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	m_can1_pins_a: m-can1-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('G', 10, AF9)>; /* CAN1_TX */
@@ -364,6 +385,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	m_can1_sleep_pins_a: m_can1-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('G', 10, ANALOG)>, /* CAN1_TX */
@@ -371,6 +393,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	m_can2_pins_a: m-can2-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('G', 0, AF9)>; /* CAN2_TX */
@@ -384,6 +407,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	m_can2_sleep_pins_a: m_can2-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('G', 0, ANALOG)>, /* CAN2_TX */
@@ -391,6 +415,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	mcp23017_pins_a: mcp23017-0 {
  		pins {
  			pinmux = <STM32_PINMUX('G', 12, GPIO)>;
@@ -398,6 +423,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm3_pins_a: pwm3-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 1, AF2)>; /* TIM3_CH4 */
@@ -407,12 +433,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm3_sleep_pins_a: pwm3-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 1, ANALOG)>; /* TIM3_CH4 */
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm4_pins_a: pwm4-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 13, AF2)>; /* TIM4_CH2 */
@@ -422,12 +450,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm4_sleep_pins_a: pwm4-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 13, ANALOG)>; /* TIM4_CH2 */
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm5_pins_a: pwm5-0 {
  		pins {
  			pinmux = <STM32_PINMUX('H', 12, AF2)>; /* TIM5_CH3 */
@@ -437,12 +467,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm5_sleep_pins_a: pwm5-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('H', 12, ANALOG)>; /* TIM5_CH3 */
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm8_pins_a: pwm8-0 {
  		pins {
  			pinmux = <STM32_PINMUX('E', 5, AF3)>; /* TIM8_CH3 */
@@ -452,12 +484,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm8_sleep_pins_a: pwm8-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('E', 5, ANALOG)>; /* TIM8_CH3 */
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm13_pins_a: pwm13-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 6, AF9)>; /* TIM13_CH1 */
@@ -467,12 +501,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm13_sleep_pins_a: pwm13-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 6, ANALOG)>; /* TIM13_CH1 */
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm14_pins_a: pwm14-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 9, AF9)>; /* TIM14_CH1 */
@@ -482,12 +518,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	pwm14_sleep_pins_a: pwm14-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 9, ANALOG)>; /* TIM14_CH1 */
  		};
  	};
  
+	/omit-if-no-ref/
  	qspi_clk_pins_a: qspi-clk-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 10, AF9)>; /* QSPI_CLK */
@@ -497,12 +535,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	qspi_clk_sleep_pins_a: qspi-clk-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 10, ANALOG)>; /* QSPI_CLK */
  		};
  	};
  
+	/omit-if-no-ref/
  	qspi_bk1_pins_a: qspi-bk1-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 8, AF10)>, /* QSPI_BK1_IO0 */
@@ -515,6 +555,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	qspi_bk1_sleep_pins_a: qspi-bk1-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 8, ANALOG)>, /* QSPI_BK1_IO0 */
@@ -524,6 +565,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	qspi_cs1_pins_a: qspi-cs1-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 2, AF9)>; /* QSPI_BK1_NCS */
@@ -533,12 +575,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	qspi_cs1_sleep_pins_a: qspi-cs1-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 2, ANALOG)>; /* QSPI_BK1_NCS */
  		};
  	};
  
+	/omit-if-no-ref/
  	sai1a_pins_a: sai1a-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 4, AF12)>, /* SAI1_SCK_A */
@@ -550,6 +594,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sai1a_sleep_pins_a: sai1a-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 4, ANALOG)>, /* SAI1_SCK_A */
@@ -558,6 +603,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sai1b_pins_a: sai1b-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 0, AF6)>; /* SAI1_SD_B */
@@ -565,12 +611,14 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sai1b_sleep_pins_a: sai1b-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 0, ANALOG)>; /* SAI1_SD_B */
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc1_b4_pins_a: sdmmc1-b4-0 {
  		pins {
  			pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
@@ -584,6 +632,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc1_b4_od_pins_a: sdmmc1-b4-od-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('C', 8, AF12)>, /* SDMMC1_D0 */
@@ -602,6 +651,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc1_b4_sleep_pins_a: sdmmc1-b4-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('C', 8, ANALOG)>, /* SDMMC1_D0 */
@@ -613,6 +663,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc1_clk_pins_a: sdmmc1-clk-0 {
  		pins {
  			pinmux = <STM32_PINMUX('C', 12, AF12)>; /* SDMMC1_CK */
@@ -622,6 +673,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc2_b4_pins_a: sdmmc2-b4-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 14, AF10)>, /* SDMMC2_D0 */
@@ -635,6 +687,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc2_b4_od_pins_a: sdmmc2-b4-od-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('B', 14, AF10)>, /* SDMMC2_D0 */
@@ -653,6 +706,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc2_b4_sleep_pins_a: sdmmc2-b4-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 14, ANALOG)>, /* SDMMC2_D0 */
@@ -664,6 +718,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc2_clk_pins_a: sdmmc2-clk-0 {
  		pins {
  			pinmux = <STM32_PINMUX('E', 3, AF10)>; /* SDMMC2_CK */
@@ -673,6 +728,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc2_d47_pins_a: sdmmc2-d47-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 0, AF10)>, /* SDMMC2_D4 */
@@ -685,6 +741,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	sdmmc2_d47_sleep_pins_a: sdmmc2-d47-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 0, ANALOG)>, /* SDMMC2_D4 */
@@ -694,6 +751,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	spi2_pins_a: spi2-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('B', 10, AF6)>, /* SPI2_SCK */
@@ -709,6 +767,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	spi2_sleep_pins_a: spi2-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* SPI2_SCK */
@@ -717,6 +776,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	spi3_pins_a: spi3-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H', 13, AF6)>, /* SPI3_SCK */
@@ -732,6 +792,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	spi3_sleep_pins_a: spi3-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('H', 13, ANALOG)>, /* SPI3_SCK */
@@ -740,6 +801,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	spi5_pins_a: spi5-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H', 7, AF6)>, /* SPI5_SCK */
@@ -755,6 +817,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	spi5_sleep_pins_a: spi5-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('H', 7, ANALOG)>, /* SPI5_SCK */
@@ -763,6 +826,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	stm32g0_intn_pins_a: stm32g0-intn-0 {
  		pins {
  			pinmux = <STM32_PINMUX('I', 2, GPIO)>;
@@ -770,6 +834,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart4_pins_a: uart4-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('D', 6, AF8)>; /* UART4_TX */
@@ -783,6 +848,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart4_idle_pins_a: uart4-idle-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('D', 6, ANALOG)>; /* UART4_TX */
@@ -793,6 +859,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart4_sleep_pins_a: uart4-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('D', 6, ANALOG)>, /* UART4_TX */
@@ -800,6 +867,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart4_pins_b: uart4-1 {
  		pins1 {
  			pinmux = <STM32_PINMUX('A', 9, AF8)>; /* UART4_TX */
@@ -813,6 +881,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart4_idle_pins_b: uart4-idle-1 {
  		pins1 {
  			pinmux = <STM32_PINMUX('A', 9, ANALOG)>; /* UART4_TX */
@@ -823,6 +892,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart4_sleep_pins_b: uart4-sleep-1 {
  		pins {
  			pinmux = <STM32_PINMUX('A', 9, ANALOG)>, /* UART4_TX */
@@ -830,6 +900,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart7_pins_a: uart7-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H', 2, AF8)>, /* UART7_TX */
@@ -845,6 +916,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart7_idle_pins_a: uart7-idle-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H', 2, ANALOG)>, /* UART7_TX */
@@ -862,6 +934,7 @@ pins3 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart7_sleep_pins_a: uart7-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('H', 2, ANALOG)>, /* UART7_TX */
@@ -871,6 +944,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart8_pins_a: uart8-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('E', 1, AF8)>; /* UART8_TX */
@@ -884,6 +958,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart8_idle_pins_a: uart8-idle-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('E', 1, ANALOG)>; /* UART8_TX */
@@ -894,6 +969,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	uart8_sleep_pins_a: uart8-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('E', 1, ANALOG)>, /* UART8_TX */
@@ -901,6 +977,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart1_pins_a: usart1-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('C', 0, AF7)>, /* USART1_TX */
@@ -916,6 +993,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart1_idle_pins_a: usart1-idle-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('C', 0, ANALOG)>, /* USART1_TX */
@@ -933,6 +1011,7 @@ pins3 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart1_sleep_pins_a: usart1-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('C', 0, ANALOG)>, /* USART1_TX */
@@ -942,6 +1021,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart1_pins_b: usart1-1 {
  		pins1 {
  			pinmux = <STM32_PINMUX('C', 0, AF7)>; /* USART1_TX */
@@ -955,6 +1035,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart1_idle_pins_b: usart1-idle-1 {
  		pins1 {
  			pinmux = <STM32_PINMUX('C', 0, ANALOG)>; /* USART1_TX */
@@ -965,6 +1046,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart1_sleep_pins_b: usart1-sleep-1 {
  		pins {
  			pinmux = <STM32_PINMUX('C', 0, ANALOG)>, /* USART1_TX */
@@ -972,6 +1054,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart2_pins_a: usart2-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H', 12, AF1)>, /* USART2_TX */
@@ -987,6 +1070,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart2_idle_pins_a: usart2-idle-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('H', 12, ANALOG)>, /* USART2_TX */
@@ -1004,6 +1088,7 @@ pins3 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart2_sleep_pins_a: usart2-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('H', 12, ANALOG)>, /* USART2_TX */
@@ -1013,6 +1098,7 @@ pins {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart2_pins_b: usart2-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('F', 11, AF1)>, /* USART2_TX */
@@ -1028,6 +1114,7 @@ pins2 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart2_idle_pins_b: usart2-idle-0 {
  		pins1 {
  			pinmux = <STM32_PINMUX('F', 11, ANALOG)>, /* USART2_TX */
@@ -1045,6 +1132,7 @@ pins3 {
  		};
  	};
  
+	/omit-if-no-ref/
  	usart2_sleep_pins_b: usart2-sleep-0 {
  		pins {
  			pinmux = <STM32_PINMUX('F', 11, ANALOG)>, /* USART2_TX */







