evie/android_kernel_oneplus_msm8998
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cnss2: Deinit MHI before device power on during SSR

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This can make sure MHI driver can safely free the memory which
is used by WLAN firmware since device is powered off.

Change-Id: If9d891eaf1ca7c28869448b3a0a42be713e16c2e
Signed-off-by: Yue Ma <yuem@codeaurora.org>
This commit is contained in:
Yue Ma 2017-06-08 15:24:20 -07:00 • committed by Gerrit - the friendly Code Review server
parent 7aa065cbc4
commit 0c5297200a
2 changed files with 8 additions and 3 deletions
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3
drivers/net/wireless/cnss2/main.c
View file

@ -1100,7 +1100,8 @@ static int cnss_qca6290_powerup(struct cnss_plat_data *plat_priv)
return -ENODEV;
}
if (plat_priv->ramdump_info_v2.dump_data_valid) {
if (plat_priv->ramdump_info_v2.dump_data_valid ||
test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state)) {
cnss_pci_set_mhi_state(pci_priv, CNSS_MHI_DEINIT);
cnss_pci_clear_dump_info(pci_priv);
}

8
drivers/net/wireless/cnss2/pci.c
View file

@ -1392,8 +1392,12 @@ void cnss_pci_stop_mhi(struct cnss_pci_data *pci_priv)
cnss_pci_set_mhi_state_bit(pci_priv, CNSS_MHI_RESUME);
cnss_pci_set_mhi_state(pci_priv, CNSS_MHI_POWER_OFF);
if (!plat_priv->ramdump_info_v2.dump_data_valid)
cnss_pci_set_mhi_state(pci_priv, CNSS_MHI_DEINIT);
if (plat_priv->ramdump_info_v2.dump_data_valid ||
test_bit(CNSS_DRIVER_RECOVERY, &plat_priv->driver_state))
return;
cnss_pci_set_mhi_state(pci_priv, CNSS_MHI_DEINIT);
}
static int cnss_pci_probe(struct pci_dev *pci_dev,