usb: dwc3: add struct dwc3_hwparams

That structure will hold a copy of readonly
GHWPARAMS* registers for ease accessing by
the driver.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index c6de53c812a..a763ba705bf 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -507,6 +507,30 @@ static inline void dwc3_trb_to_nat(struct dwc3_trb_hw *hw, struct dwc3_trb *nat)
 }
 
 /**
+ * dwc3_hwparams - copy of HWPARAMS registers
+ * @hwparams0 - GHWPARAMS0
+ * @hwparams1 - GHWPARAMS1
+ * @hwparams2 - GHWPARAMS2
+ * @hwparams3 - GHWPARAMS3
+ * @hwparams4 - GHWPARAMS4
+ * @hwparams5 - GHWPARAMS5
+ * @hwparams6 - GHWPARAMS6
+ * @hwparams7 - GHWPARAMS7
+ * @hwparams8 - GHWPARAMS8
+ */
+struct dwc3_hwparams {
+        u32     hwparams0;
+        u32     hwparams1;
+        u32     hwparams2;
+        u32     hwparams3;
+        u32     hwparams4;
+        u32     hwparams5;
+        u32     hwparams6;
+        u32     hwparams7;
+        u32     hwparams8;
+};
+
+/**
  * struct dwc3 - representation of our controller
  * @ctrl_req: usb control request which is used for ep0
  * @ep0_trb: trb which is used for the ctrl_req
@@ -537,6 +561,7 @@ static inline void dwc3_trb_to_nat(struct dwc3_trb_hw *hw, struct dwc3_trb *nat)
  * @link_state: link state
  * @speed: device speed (super, high, full, low)
  * @mem: points to start of memory which is used for this struct.
+ * @hwparams: copy of hwparams registers
  * @root: debugfs root folder pointer
  */
 struct dwc3 {
@@ -589,6 +614,7 @@ struct dwc3 {
         u8                      speed;
         void                    *mem;
 
+        struct dwc3_hwparams    hwparams;
         struct dentry           *root;
 };