[PATCH 09/22] usb: xhci: rework USB3 PORTHLPMC macros

[Niklas Neronin <niklas.neronin@linux.intel.com>]

Define macros to describe only the bit masks, and use the standard
FIELD_* helpers to extract, set, and update field values.

By consolidating macro usage and eliminating custom helpers, the code
becomes simpler and easier to follow. The use of standard bitfield
macros improves readability and enforces consistent register field
handling.

Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
---
 drivers/usb/host/xhci-port.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/xhci-port.h b/drivers/usb/host/xhci-port.h
index c87a73f03540..1ec0ee01e552 100644
--- a/drivers/usb/host/xhci-port.h
+++ b/drivers/usb/host/xhci-port.h
@@ -168,6 +168,10 @@
 #define PORT_TDR_MASK		GENMASK(7, 4)
 /* bits 31:8 - RsvdP */
 
+/* USB3 Port Hardware LPM Control Register (PORTHLPMC) 5.4.11.1 */
+/* bits 15:0 - Link Soft Error Count, if LSECC=1 else RsvdP */
+/* bits 31:16 - RsvdP */
+
 /* USB2 Protocol PORTHLPMC */
 #define PORT_HIRDM(p)((p) & 3)
 #define PORT_L1_TIMEOUT(p)(((p) & 0xff) << 2)
-- 
2.50.1