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ath10k: create a chip revision whitelist

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This will make it easier to extend and maintain
list of supported hardware.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior
2014-12-02 10:55:54 +02:00
committed by Kalle Valo
parent 5aabff05df
commit 7505f7c3ec
3 changed files with 36 additions and 37 deletions
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31
drivers/net/wireless/ath/ath10k/pci.c
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@@ -64,6 +64,14 @@ static const struct pci_device_id ath10k_pci_id_table[] = {
{0}
};
static const struct ath10k_pci_supp_chip ath10k_pci_supp_chips[] = {
/* QCA988X pre 2.0 chips are not supported because they need some nasty
* hacks. ath10k doesn't have them and these devices crash horribly
* because of that.
*/
{ QCA988X_2_0_DEVICE_ID, QCA988X_HW_2_0_CHIP_ID_REV },
};
static void ath10k_pci_buffer_cleanup(struct ath10k *ar);
static int ath10k_pci_cold_reset(struct ath10k *ar);
static int ath10k_pci_warm_reset(struct ath10k *ar);
@@ -2476,6 +2484,23 @@ static void ath10k_pci_release(struct ath10k *ar)
pci_disable_device(pdev);
}
static bool ath10k_pci_chip_is_supported(u32 dev_id, u32 chip_id)
{
const struct ath10k_pci_supp_chip *supp_chip;
int i;
u32 rev_id = MS(chip_id, SOC_CHIP_ID_REV);
for (i = 0; i < ARRAY_SIZE(ath10k_pci_supp_chips); i++) {
supp_chip = &ath10k_pci_supp_chips[i];
if (supp_chip->dev_id == dev_id &&
supp_chip->rev_id == rev_id)
return true;
}
return false;
}
static int ath10k_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_dev)
{
@@ -2521,6 +2546,12 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
goto err_sleep;
}
if (!ath10k_pci_chip_is_supported(pdev->device, chip_id)) {
ath10k_err(ar, "device %04x with chip_id %08x isn't supported\n",
pdev->device, chip_id);
goto err_sleep;
}
ret = ath10k_pci_alloc_pipes(ar);
if (ret) {
ath10k_err(ar, "failed to allocate copy engine pipes: %d\n",