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scsi: ufs-qcom: enable UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION

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Newer revisions of Qualcomm UFS host controller may not advertise
the correct version information in UFS HCI VER register. To handle
this, enable UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION to let UFS standard
host controller driver call into vendor specific operation to get
right UFS HCI VER register value.

Change-Id: Ibd50b8bb8a87003181ea306690e87728576d49fb
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
This commit is contained in:
Subhash Jadavani 2015-01-26 12:52:06 -08:00 • committed by David Keitel
parent e77d1e1a1d
commit ddc6e01269
1 changed files with 12 additions and 0 deletions
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12
drivers/scsi/ufs/ufs-qcom.c
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@ -958,6 +958,16 @@ out:
return ret; return ret;
} }
static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba)
{
struct ufs_qcom_host *host = hba->priv;
if (host->hw_ver.major == 0x1)
return UFSHCI_VERSION_11;
else
return UFSHCI_VERSION_20;
}
/** /**
* ufs_qcom_advertise_quirks - advertise the known QCOM UFS controller quirks * ufs_qcom_advertise_quirks - advertise the known QCOM UFS controller quirks
* @hba: host controller instance * @hba: host controller instance
@ -982,6 +992,7 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
if (host->hw_ver.major >= 0x2) { if (host->hw_ver.major >= 0x2) {
hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC; hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC;
hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION;
if (!ufs_qcom_cap_qunipro(host)) if (!ufs_qcom_cap_qunipro(host))
/* Legacy UniPro mode still need following quirks */ /* Legacy UniPro mode still need following quirks */
@ -1642,6 +1653,7 @@ const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
.name = "qcom", .name = "qcom",
.init = ufs_qcom_init, .init = ufs_qcom_init,
.exit = ufs_qcom_exit, .exit = ufs_qcom_exit,
.get_ufs_hci_version = ufs_qcom_get_ufs_hci_version,
.clk_scale_notify = ufs_qcom_clk_scale_notify, .clk_scale_notify = ufs_qcom_clk_scale_notify,
.setup_clocks = ufs_qcom_setup_clocks, .setup_clocks = ufs_qcom_setup_clocks,
.hce_enable_notify = ufs_qcom_hce_enable_notify, .hce_enable_notify = ufs_qcom_hce_enable_notify,