target/linux/generic/backport-5.15/703-07-v5.16-net-phy-add-phy_interface_t-bitmap-support.patch

   1 From 8e20f591f204f8db7f1182918f8e2285d3f589e0 Mon Sep 17 00:00:00 2001
   2 From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
   3 Date: Tue, 26 Oct 2021 11:06:01 +0100
   4 Subject: [PATCH] net: phy: add phy_interface_t bitmap support
   5
   6 Add support for a bitmap for phy interface modes, which includes:
   7 - a macro to declare the interface bitmap
   8 - an inline helper to zero the interface bitmap
   9 - an inline helper to detect an empty interface bitmap
  10 - inline helpers to do a bitwise AND and OR operations on two interface
  11   bitmaps
  12
  13 Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
  14 Signed-off-by: David S. Miller <davem@davemloft.net>
  15 ---
  16  include/linux/phy.h | 34 ++++++++++++++++++++++++++++++++++
  17  1 file changed, 34 insertions(+)
  18
  19 --- a/include/linux/phy.h
  20 +++ b/include/linux/phy.h
  21 @@ -155,6 +155,40 @@ typedef enum {
  22         PHY_INTERFACE_MODE_MAX,
  23  } phy_interface_t;
  24
  25 +/* PHY interface mode bitmap handling */
  26 +#define DECLARE_PHY_INTERFACE_MASK(name) \
  27 +       DECLARE_BITMAP(name, PHY_INTERFACE_MODE_MAX)
  28 +
  29 +static inline void phy_interface_zero(unsigned long *intf)
  30 +{
  31 +       bitmap_zero(intf, PHY_INTERFACE_MODE_MAX);
  32 +}
  33 +
  34 +static inline bool phy_interface_empty(const unsigned long *intf)
  35 +{
  36 +       return bitmap_empty(intf, PHY_INTERFACE_MODE_MAX);
  37 +}
  38 +
  39 +static inline void phy_interface_and(unsigned long *dst, const unsigned long *a,
  40 +                                    const unsigned long *b)
  41 +{
  42 +       bitmap_and(dst, a, b, PHY_INTERFACE_MODE_MAX);
  43 +}
  44 +
  45 +static inline void phy_interface_or(unsigned long *dst, const unsigned long *a,
  46 +                                   const unsigned long *b)
  47 +{
  48 +       bitmap_or(dst, a, b, PHY_INTERFACE_MODE_MAX);
  49 +}
  50 +
  51 +static inline void phy_interface_set_rgmii(unsigned long *intf)
  52 +{
  53 +       __set_bit(PHY_INTERFACE_MODE_RGMII, intf);
  54 +       __set_bit(PHY_INTERFACE_MODE_RGMII_ID, intf);
  55 +       __set_bit(PHY_INTERFACE_MODE_RGMII_RXID, intf);
  56 +       __set_bit(PHY_INTERFACE_MODE_RGMII_TXID, intf);
  57 +}
  58 +
  59  /*
  60   * phy_supported_speeds - return all speeds currently supported by a PHY device
  61   */