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kinetis/pinmux: Do not redefine PIN_UART2_RTS

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When a developer working on BSP wants UART1 with RTS, the following
needs to be added in the BSP's include/board.h file:

	#define PIN_UART1_RTS PIN_UART1_RTS_1

which says that PIN_UART1_RTS_1 -- the first alternative pin with UART1
RTS function -- should be used for the UART1's RTS.

There are no alternative pins for PIN_UART2_RTS, therefore a similar
definition is not used for PIN_UART2_RTS.

However, that is a complication when we want PIN_UART2_RTS to be defined
as GPIO, for example:

	#define PIN_UART2_RTS (GPIO_OUTPUT | PIN_PORTB | PIN2)

In such a case, PIN_UART2_RTS is later redefined to the only alternative
function from hardware/kinetis_???pinmux.h file.

This patch avoids the redefinition of already defined names.

We considered renaming PIN_UART2_RTS to PIN_UART2_RTS_1 in the
hardware/kinetis_???pinmux.h file, but that is breaking change. We try
to avoid breaking change.

Signed-off-by: Jiri Vlasak <jvlasak@elektroline.cz>
This commit is contained in:
Jiri Vlasak
2026-03-26 12:26:31 +01:00
committed by Xiang Xiao
parent b2349aee5c
commit 7f5e0285a8
4 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/src/kinetis/hardware/kinetis_k40pinmux.h
+3 -1
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@@ -351,7 +351,9 @@
#define PIN_LCD_P40 (PIN_ANALOG | PIN_PORTD | PIN0)
#define PIN_SPI0_PCS0_3 (PIN_ALT2 | PIN_PORTD | PIN0)
#define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#if !defined(PIN_UART2_RTS)
# define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#endif
#define PIN_LCD_P40F (PIN_ALT7 | PIN_PORTD | PIN0)
#define PIN_LCD_P41 (PIN_ANALOG | PIN_PORTD | PIN1)
#define PIN_ADC0_SE5B (PIN_ANALOG | PIN_PORTD | PIN1)
arch/arm/src/kinetis/hardware/kinetis_k60pinmux.h
+3 -1
View File
@@ -346,7 +346,9 @@
#define PIN_FB_TA (PIN_ALT6 | PIN_PORTC | PIN19)
#define PIN_SPI0_PCS0_3 (PIN_ALT2 | PIN_PORTD | PIN0)
#define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#if !defined(PIN_UART2_RTS)
# define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#endif
#define PIN_FTM3_CH0_2 (PIN_ALT4 | PIN_PORTD | PIN0)
#define PIN_FB_ALE (PIN_ALT5 | PIN_PORTD | PIN0)
#define PIN_FB_CS1 (PIN_ALT5 | PIN_PORTD | PIN0)
arch/arm/src/kinetis/hardware/kinetis_k64pinmux.h
+3 -1
View File
@@ -563,7 +563,9 @@
#define PIN_UART1_TX_2 (PIN_ALT3 | PIN_PORTE | PIN0)
#define PIN_UART2_CTS (PIN_ALT3 | PIN_PORTD | PIN1)
#define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#if !defined(PIN_UART2_RTS)
# define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#endif
#define PIN_UART2_RX (PIN_ALT3 | PIN_PORTD | PIN2)
#define PIN_UART2_TX (PIN_ALT3 | PIN_PORTD | PIN3)
arch/arm/src/kinetis/hardware/kinetis_k66pinmux.h
+3 -1
View File
@@ -678,7 +678,9 @@
#define PIN_UART1_TX_2 (PIN_ALT3 | PIN_PORTE | PIN0)
#define PIN_UART2_CTS (PIN_ALT3 | PIN_PORTD | PIN1)
#define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#if !defined(PIN_UART2_RTS)
# define PIN_UART2_RTS (PIN_ALT3 | PIN_PORTD | PIN0)
#endif
#define PIN_UART2_RX (PIN_ALT3 | PIN_PORTD | PIN2)
#define PIN_UART2_TX (PIN_ALT3 | PIN_PORTD | PIN3)