[PATCH net-next 2/2] net: stmmac: select STMMAC_RELATIVE_FLEX_PPS for stm32 SoCs
From: Gatien Chevallier <gatien.chevallier@foss.st.com>
Date: 2025-07-24 12:33:59
Also in:
linux-arm-kernel, lkml
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
In order to simplify the generation of flexible PPS signals by passing an time offset relative to the MAC system time, select STMMAC_RELATIVE_FLEX_PPS for DWMAC_STM32 config. E.g: "echo "0 3 0 1 1" > /sys/class/ptp/ptp0/period" generates a PPS that has a 1s period, 3 seconds after entering the command for ptp0 clock, given that the MAC system time stays stable. Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> --- drivers/net/ethernet/stmicro/stmmac/Kconfig | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index 949c744d30f19f5ff480dca4811e678d2b93c450..98fae30ad5a2760ec6b9cebf3dcaf8e4d7d19b77 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig@@ -233,6 +233,7 @@ config DWMAC_STM32 default ARCH_STM32 depends on OF && HAS_IOMEM && (ARCH_STM32 || COMPILE_TEST) select MFD_SYSCON + select STMMAC_RELATIVE_FLEX_PPS help Support for ethernet controller on STM32 SOCs.
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2.25.1