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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2018-10-11 11:38:22 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2019-04-18 11:18:53 +0300 |
| commit | c5ee6feb34709da96f9909b8a2e1e42875020efb (patch) | |
| tree | 2a60a880e678769575f181228d646c90fd106f6c /drivers/thunderbolt/tb_regs.h | |
| parent | e78db6f08b6a2a50eea9ed4146f019026491d63c (diff) | |
| download | linux-c5ee6feb34709da96f9909b8a2e1e42875020efb.tar.xz | |
thunderbolt: Rework NFC credits handling
NFC (non flow control) credits is actually 20-bit field so update
tb_port_add_nfc_credits() to handle this properly. This allows us to set
NFC credits for Display Port path in subsequent patches.
Also make sure the function does not update the hardware if the
underlying switch is already unplugged.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/tb_regs.h')
| -rw-r--r-- | drivers/thunderbolt/tb_regs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 75e935acade5..74c0f4a5606d 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -211,6 +211,9 @@ struct tb_regs_port_header { } __packed; +/* DWORD 4 */ +#define TB_PORT_NFC_CREDITS_MASK GENMASK(19, 0) + /* PCIe adapter registers */ #define TB_PCI_EN BIT(31) |