diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2022-08-30 11:12:40 +0200 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2022-09-05 08:02:16 +0200 |
| commit | 3846d011403b57190b6b3e917cc8b3ab810fa293 (patch) | |
| tree | bb2e1d46db6ef392faef5dc10d7644052f072ebe /drivers/thunderbolt | |
| parent | thunderbolt: Move port CL state functions into correct place in switch.c (diff) | |
| download | linux-3846d011403b57190b6b3e917cc8b3ab810fa293.tar.xz linux-3846d011403b57190b6b3e917cc8b3ab810fa293.zip | |
thunderbolt: Pass CL state bitmask to tb_port_clx_supported()
Instead of testing just a single CL state we can pass a bitmask of
states to check. This makes it simpler for callers of the function.
We also add a check for CL2 even though not fully supported by the
driver yet.
Suggested-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/switch.c | 17 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb.h | 4 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb_regs.h | 1 |
3 files changed, 9 insertions, 13 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index deefc92c7c60..0671f5361b5b 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -1259,9 +1259,9 @@ static int tb_port_pm_secondary_disable(struct tb_port *port) } /* Called for USB4 or Titan Ridge routers only */ -static bool tb_port_clx_supported(struct tb_port *port, enum tb_clx clx) +static bool tb_port_clx_supported(struct tb_port *port, unsigned int clx_mask) { - u32 mask, val; + u32 val, mask = 0; bool ret; /* Don't enable CLx in case of two single-lane links */ @@ -1279,17 +1279,12 @@ static bool tb_port_clx_supported(struct tb_port *port, enum tb_clx clx) return false; } - switch (clx) { - case TB_CL1: + if (clx_mask & TB_CL1) { /* CL0s and CL1 are enabled and supported together */ - mask = LANE_ADP_CS_0_CL0S_SUPPORT | LANE_ADP_CS_0_CL1_SUPPORT; - break; - - /* For now we support only CL0s and CL1. Not CL2 */ - case TB_CL2: - default: - return false; + mask |= LANE_ADP_CS_0_CL0S_SUPPORT | LANE_ADP_CS_0_CL1_SUPPORT; } + if (clx_mask & TB_CL2) + mask |= LANE_ADP_CS_0_CL2_SUPPORT; ret = tb_port_read(port, &val, TB_CFG_PORT, port->cap_phy + LANE_ADP_CS_0, 1); diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 8291cabd2e92..8555ad9d7234 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -113,8 +113,8 @@ struct tb_switch_tmu { enum tb_clx { TB_CLX_DISABLE, /* CL0s and CL1 are enabled and supported together */ - TB_CL1, - TB_CL2, + TB_CL1 = BIT(0), + TB_CL2 = BIT(1), }; /** diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h index 166054110388..a45f295533cd 100644 --- a/drivers/thunderbolt/tb_regs.h +++ b/drivers/thunderbolt/tb_regs.h @@ -324,6 +324,7 @@ struct tb_regs_port_header { #define LANE_ADP_CS_0_SUPPORTED_WIDTH_DUAL 0x2 #define LANE_ADP_CS_0_CL0S_SUPPORT BIT(26) #define LANE_ADP_CS_0_CL1_SUPPORT BIT(27) +#define LANE_ADP_CS_0_CL2_SUPPORT BIT(28) #define LANE_ADP_CS_1 0x01 #define LANE_ADP_CS_1_TARGET_SPEED_MASK GENMASK(3, 0) #define LANE_ADP_CS_1_TARGET_SPEED_GEN3 0xc |