diff mbox series

[v4,3/7] ufs: add UFSHCD_QUIRK_HIBERN_FASTAUTO

Message ID 20220420025450.289578-4-yoshihiro.shimoda.uh@renesas.com (mailing list archive)
State Superseded
Headers show
Series treewide: scsi: ufs: Add support for Renesas R-Car UFS controller | expand

Commit Message

Yoshihiro Shimoda April 20, 2022, 2:54 a.m. UTC 
Add UFSHCD_QUIRK_HIBERN_FASTAUTO for a broken host controller of
the auto-hibernate capability but it's FASTAUTO only.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 drivers/scsi/ufs/ufshcd.c | 9 +++++++--
 drivers/scsi/ufs/ufshcd.h | 6 ++++++
 2 files changed, 13 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a7bb3945c7c6..adc059a86e1e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4247,8 +4247,13 @@  static int ufshcd_get_max_pwr_mode(struct ufs_hba *hba)
 	if (hba->max_pwr_info.is_valid)
 		return 0;
 
-	pwr_info->pwr_tx = FAST_MODE;
-	pwr_info->pwr_rx = FAST_MODE;
+	if (hba->quirks & UFSHCD_QUIRK_HIBERN_FASTAUTO) {
+		pwr_info->pwr_tx = FASTAUTO_MODE;
+		pwr_info->pwr_rx = FASTAUTO_MODE;
+	} else {
+		pwr_info->pwr_tx = FAST_MODE;
+		pwr_info->pwr_rx = FAST_MODE;
+	}
 	pwr_info->hs_rate = PA_HS_MODE_B;
 
 	/* Get the connected lane count */
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 1745144eb904..d14cc48226ce 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -608,6 +608,12 @@  enum ufshcd_quirks {
 	 * 64-bit addressing supported capability but it doesn't work.
 	 */
 	UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS		= 1 << 17,
+
+	/*
+	 * This quirk needs to be enabled if the host controller has
+	 * auto-hibernate capability but it's FASTAUTO only.
+	 */
+	UFSHCD_QUIRK_HIBERN_FASTAUTO			= 1 << 18,
 };
 
 enum ufshcd_caps {