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path: root/drivers/scsi/ufs/ufshcd.h
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Diffstat (limited to 'drivers/scsi/ufs/ufshcd.h')
-rw-r--r--drivers/scsi/ufs/ufshcd.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index e1bde0598d92..343b18a7a8b0 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -221,6 +221,22 @@ struct ufs_clk_info {
#define PRE_CHANGE 0
#define POST_CHANGE 1
+
+struct ufs_pa_layer_attr {
+ u32 gear_rx;
+ u32 gear_tx;
+ u32 lane_rx;
+ u32 lane_tx;
+ u32 pwr_rx;
+ u32 pwr_tx;
+ u32 hs_rate;
+};
+
+struct ufs_pwr_mode_info {
+ bool is_valid;
+ struct ufs_pa_layer_attr info;
+};
+
/**
* struct ufs_hba_variant_ops - variant specific callbacks
* @name: variant name
@@ -232,6 +248,9 @@ struct ufs_clk_info {
* variant specific Uni-Pro initialization.
* @link_startup_notify: called before and after Link startup is carried out
* to allow variant specific Uni-Pro initialization.
+ * @pwr_change_notify: called before and after a power mode change
+ * is carried out to allow vendor spesific capabilities
+ * to be set.
* @suspend: called during host controller PM callback
* @resume: called during host controller PM callback
*/
@@ -243,6 +262,9 @@ struct ufs_hba_variant_ops {
int (*setup_regulators)(struct ufs_hba *, bool);
int (*hce_enable_notify)(struct ufs_hba *, bool);
int (*link_startup_notify)(struct ufs_hba *, bool);
+ int (*pwr_change_notify)(struct ufs_hba *,
+ bool, struct ufs_pa_layer_attr *,
+ struct ufs_pa_layer_attr *);
int (*suspend)(struct ufs_hba *, enum ufs_pm_op);
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
};
@@ -302,6 +324,8 @@ struct ufs_init_prefetch {
* @auto_bkops_enabled: to track whether bkops is enabled in device
* @vreg_info: UFS device voltage regulator information
* @clk_list_head: UFS host controller clocks list node head
+ * @pwr_info: holds current power mode
+ * @max_pwr_info: keeps the device max valid pwm
*/
struct ufs_hba {
void __iomem *mmio_base;
@@ -387,6 +411,9 @@ struct ufs_hba {
struct list_head clk_list_head;
bool wlun_dev_clr_ua;
+
+ struct ufs_pa_layer_attr pwr_info;
+ struct ufs_pwr_mode_info max_pwr_info;
};
#define ufshcd_writel(hba, val, reg) \