lkml.org 
[lkml]   [2017]   [Dec]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH net-next 2/2] net: dsa: lan9303: Adjust phy_addr_base expressions
Date
Simplify calculation of chip->phy_addr_base in lan9303_detect_phy_setup().

Use GENMASK to calculate phys_mii_mask from LAN9303_NUM_PORTS and
phy_addr_base.

Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no>
---
drivers/net/dsa/lan9303-core.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
index 3088cdc5d205..4efb772dbc7e 100644
--- a/drivers/net/dsa/lan9303-core.c
+++ b/drivers/net/dsa/lan9303-core.c
@@ -495,10 +495,7 @@ static int lan9303_detect_phy_setup(struct lan9303 *chip)
return reg;
}

- if ((reg != 0) && (reg != 0xffff))
- chip->phy_addr_base = 1;
- else
- chip->phy_addr_base = 0;
+ chip->phy_addr_base = reg != 0 && reg != 0xffff;

dev_dbg(chip->dev, "Phy setup '%s' detected\n",
chip->phy_addr_base ? "1-2-3" : "0-1-2");
@@ -1283,13 +1280,16 @@ static const struct dsa_switch_ops lan9303_switch_ops = {

static int lan9303_register_switch(struct lan9303 *chip)
{
+ int base;
+
chip->ds = dsa_switch_alloc(chip->dev, LAN9303_NUM_PORTS);
if (!chip->ds)
return -ENOMEM;

chip->ds->priv = chip;
chip->ds->ops = &lan9303_switch_ops;
- chip->ds->phys_mii_mask = chip->phy_addr_base ? 0xe : 0x7;
+ base = chip->phy_addr_base;
+ chip->ds->phys_mii_mask = GENMASK(LAN9303_NUM_PORTS - 1 + base, base);

return dsa_register_switch(chip->ds);
}
--
2.14.1
\
 
 \ /
  Last update: 2017-12-29 13:40    [W:0.020 / U:25.076 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site