evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

scsi: ufs-qcom : Add quirk for broken auto hibern8

Browse source 
Some platforms might not support auto hibern8 even though the
controller exposes this capability. Add a quirk to disable
auto hibern8 for such platforms.

Change-Id: I4a027f89deddff4735df45da9cffbfb1849af5f4
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
This commit is contained in:
Venkat Gopalakrishnan 2016-05-24 12:11:32 -07:00 • committed by Kyle Yan
parent c4fcd60d69
commit 813edfeb4d
2 changed files with 8 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/scsi/ufs/ufs-qcom.c
View file

@ -1355,6 +1355,9 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
| UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE | UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE
| UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP); | UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP);
} }
if (host->disable_lpm)
hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8;
} }
static void ufs_qcom_set_caps(struct ufs_hba *hba) static void ufs_qcom_set_caps(struct ufs_hba *hba)

6
drivers/scsi/ufs/ufshcd.h
View file

@ -776,6 +776,9 @@ struct ufs_hba {
*/ */
#define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION UFS_BIT(5) #define UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION UFS_BIT(5)
/* Auto hibern8 support is broken */
#define UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8 UFS_BIT(6)
unsigned int quirks; /* Deviations from standard UFSHCI spec. */ unsigned int quirks; /* Deviations from standard UFSHCI spec. */
/* Device deviations from standard UFS device spec. */ /* Device deviations from standard UFS device spec. */
@ -936,7 +939,8 @@ static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
static inline bool ufshcd_is_auto_hibern8_supported(struct ufs_hba *hba) static inline bool ufshcd_is_auto_hibern8_supported(struct ufs_hba *hba)
{ {
return !!(hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT); return !!((hba->capabilities & MASK_AUTO_HIBERN8_SUPPORT) &&
!(hba->quirks & UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8));
} }
static inline bool ufshcd_is_crypto_supported(struct ufs_hba *hba) static inline bool ufshcd_is_crypto_supported(struct ufs_hba *hba)