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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2022-06-03 14:05:20 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-08-25 12:45:41 +0300
commitf6ad16176b705d116d9bd5d6b9a889eb50e72439 (patch)
treedebed99b6d39c42bf31de9df1ccbe281bd7f557f
parent99c6d37aeffa30702980976bb5a1eb6243c0826b (diff)
downloadlinux-f6ad16176b705d116d9bd5d6b9a889eb50e72439.tar.xz
scsi: ufs: core: Add UFSHCD_QUIRK_HIBERN_FASTAUTO
[ Upstream commit 2f11bbc2c7f37e3a6151ac548b1c0679cc90ea83 ] Add UFSHCD_QUIRK_HIBERN_FASTAUTO quirk for host controllers which supports auto-hibernate the capability but only FASTAUTO mode. Link: https://lore.kernel.org/r/20220603110524.1997825-4-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/ufs/core/ufshcd.c9
-rw-r--r--include/ufs/ufshcd.h6
2 files changed, 13 insertions, 2 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 141fff01a662..a51ca56a0ebe 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -4292,8 +4292,13 @@ 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/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 795c8951341d..991aea081ec7 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -583,6 +583,12 @@ 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 {