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Commit ae977587 authored by Yaniv Gardi's avatar Yaniv Gardi Committed by James Bottomley
Browse files

scsi: ufs-qcom: enable UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION 



Newer revisions of QUALCOMM Technologies 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.

Signed-off-by: default avatarYaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Odin.com>
parent 9949e702

drivers/scsi/ufs/ufs-qcom.c

+12 −0
Original line number Diff line number Diff line
@@ -694,6 +694,16 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba, 
	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

 * @hba: host controller instance
@@ -718,6 +728,7 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) 


	if (host->hw_ver.major >= 0x2) {

		hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC;

		hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION;



		if (!ufs_qcom_cap_qunipro(host))

			/* Legacy UniPro mode still need following quirks */
@@ -1026,6 +1037,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { 
	.name                   = "qcom",

	.init                   = ufs_qcom_init,

	.exit                   = ufs_qcom_exit,

	.get_ufs_hci_version	= ufs_qcom_get_ufs_hci_version,

	.clk_scale_notify	= ufs_qcom_clk_scale_notify,

	.setup_clocks           = ufs_qcom_setup_clocks,

	.hce_enable_notify      = ufs_qcom_hce_enable_notify,