diff options
| author | Neil Armstrong <neil.armstrong@linaro.org> | 2024-09-10 11:50:11 +0200 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2024-10-14 08:56:03 +0200 |
| commit | b3f89c1d6ed47b7c7a6eaf854d3289dbfe31f332 (patch) | |
| tree | 4596008d4824b322c23af10cd02d247ee2d39a48 | |
| parent | 182e19225bbf66bae2280173a177c569e131c0dc (diff) | |
ufs: add get_max_pwr_mode callback
Add a new get_max_pwr_mode callback to permit the UFS controller
driver manipulate the max_pwr_mode struct right before setting
the new pwr_mode to the UFS device.
It can be used to limit the HS Gear with errata and hardware
limitations on some UFS controllers.
Tested-by: Julius Lehmann <lehmanju@devpi.de>
Tested-by: Caleb Connolly <caleb.connolly@linaro.org> #rb3gen2
Link: https://lore.kernel.org/r/20240910-topic-ufs-qcom-controller-v1-2-54c0d2231b10@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
| -rw-r--r-- | drivers/ufs/ufs.c | 2 | ||||
| -rw-r--r-- | drivers/ufs/ufs.h | 11 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c index de8ba011d57..1edd31677b2 100644 --- a/drivers/ufs/ufs.c +++ b/drivers/ufs/ufs.c @@ -1744,7 +1744,7 @@ static int ufshcd_get_max_pwr_mode(struct ufs_hba *hba) } hba->max_pwr_info.is_valid = true; - return 0; + return ufshcd_ops_get_max_pwr_mode(hba, &hba->max_pwr_info); } static int ufshcd_change_power_mode(struct ufs_hba *hba, diff --git a/drivers/ufs/ufs.h b/drivers/ufs/ufs.h index 8221812f6da..81107e5b37e 100644 --- a/drivers/ufs/ufs.h +++ b/drivers/ufs/ufs.h @@ -696,6 +696,8 @@ struct ufs_dev_cmd { struct ufs_hba_ops { int (*init)(struct ufs_hba *hba); + int (*get_max_pwr_mode)(struct ufs_hba *hba, + struct ufs_pwr_mode_info *max_pwr_info); int (*hce_enable_notify)(struct ufs_hba *hba, enum ufs_notify_change_status); int (*link_startup_notify)(struct ufs_hba *hba, @@ -903,6 +905,15 @@ static inline int ufshcd_ops_init(struct ufs_hba *hba) return 0; } +static inline int ufshcd_ops_get_max_pwr_mode(struct ufs_hba *hba, + struct ufs_pwr_mode_info *max_pwr_info) +{ + if (hba->ops && hba->ops->get_max_pwr_mode) + return hba->ops->get_max_pwr_mode(hba, max_pwr_info); + + return 0; +} + static inline int ufshcd_ops_hce_enable_notify(struct ufs_hba *hba, bool status) { |