* [PATCH] mhi: pci_generic: Print warning in case of firmware crash
@ 2021-02-03 16:33 Loic Poulain
0 siblings, 0 replies; only message in thread
From: Loic Poulain @ 2021-02-03 16:33 UTC (permalink / raw)
To: manivannan.sadhasivam, hemantk; +Cc: linux-arm-msm, Loic Poulain
Print warning when MHI detects sys error.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
---
drivers/bus/mhi/pci_generic.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c
index 444693e..81b1500 100644
--- a/drivers/bus/mhi/pci_generic.c
+++ b/drivers/bus/mhi/pci_generic.c
@@ -217,7 +217,19 @@ static void mhi_pci_write_reg(struct mhi_controller *mhi_cntrl,
static void mhi_pci_status_cb(struct mhi_controller *mhi_cntrl,
enum mhi_callback cb)
{
+ struct pci_dev *pdev = to_pci_dev(mhi_cntrl->cntrl_dev);
+ struct mhi_pci_device *mhi_pdev = pci_get_drvdata(pdev);
+
/* Nothing to do for now */
+ switch (cb) {
+ case MHI_CB_FATAL_ERROR:
+ /* fallthrough */
+ case MHI_CB_SYS_ERROR:
+ dev_warn(&pdev->dev, "firmware crashed (%u)\n", cb);
+ break;
+ default:
+ break;
+ }
}
static bool mhi_pci_is_alive(struct mhi_controller *mhi_cntrl)
--
2.7.4
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