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Subject[PATCH 29/34] brcmfmac: pcie: Read the console on init and shutdown
Date
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.

Signed-off-by: Hector Martin <marcan@marcan.st>
---
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 6cf55027e0d7..4202ca2e9381 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -851,6 +851,8 @@ 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) {
@@ -1627,6 +1629,7 @@ 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;
}
@@ -2394,6 +2397,7 @@ 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
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