Re: [PATCH 14/36] soc: fsl: cpm1: tsa: Add support for QUICC Engine (QE) implementation
From: Markus Elfring <hidden>
Date: 2024-07-30 09:25:55
Also in:
linux-arm-kernel, linux-devicetree, lkml
From: Markus Elfring <hidden>
Date: 2024-07-30 09:25:55
Also in:
linux-arm-kernel, linux-devicetree, lkml
…
+++ b/drivers/soc/fsl/qe/tsa.c
…
+static int tsa_qe_serial_connect(struct tsa_serial *tsa_serial, bool connect)
+{…
+ spin_lock_irqsave(&tsa->lock, flags); + ret = ucc_set_qe_mux_tsa(ucc_num, connect); + spin_unlock_irqrestore(&tsa->lock, flags);
… Under which circumstances would you become interested to apply a statement like “guard(spinlock_irqsave)(&tsa->lock);”? https://elixir.bootlin.com/linux/v6.11-rc1/source/include/linux/spinlock.h#L572 Regards, Markus