[PATCH v4 9/9] brcmfmac: pcie: Read the console on init and shutdown
From: Hector Martin <hidden>
Date: 2022-01-31 16:10:05
Also in:
linux-acpi, linux-devicetree, linux-wireless, lkml
Subsystem:
broadcom brcm80211 ieee802.11 wireless drivers, the rest · Maintainers:
Arend van Spriel, Linus Torvalds
This allows us to get console messages if the firmware crashed during early init, or if an operation failed and we're about to shut down. Reviewed-by: Linus Walleij <redacted> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Hector Martin <redacted> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
index 3ff4997e1c97..4fe341376a16 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c@@ -744,6 +744,8 @@ static void brcmf_pcie_bus_console_read(struct brcmf_pciedev_info *devinfo, return; console = &devinfo->shared.console; + if (!console->base_addr) + return; addr = console->base_addr + BRCMF_CONSOLE_WRITEIDX_OFFSET; newidx = brcmf_pcie_read_tcm32(devinfo, addr); while (newidx != console->read_idx) {
@@ -1520,6 +1522,7 @@ brcmf_pcie_init_share_ram_info(struct brcmf_pciedev_info *devinfo, shared->max_rxbufpost, shared->rx_dataoffset); brcmf_pcie_bus_console_init(devinfo); + brcmf_pcie_bus_console_read(devinfo, false); return 0; }
@@ -1959,6 +1962,7 @@ brcmf_pcie_remove(struct pci_dev *pdev) return; devinfo = bus->bus_priv.pcie->devinfo; + brcmf_pcie_bus_console_read(devinfo, false); devinfo->state = BRCMFMAC_PCIE_STATE_DOWN; if (devinfo->ci)
--
2.33.0