[PATCH net-next 09/24] net: dsa: mt7530: change p{5,6}_interface to p{5,6}_configured

arinc9.unal
2023-04-25T08:31:45Z

The idea of p5_interface and p6_interface pointers is to prevent
mt753x_mac_config() from running twice for MT7531, as it's already run with
mt753x_cpu_port_enable() from mt7531_setup_common(), if the port is used as
a CPU port.

Change p5_interface and p6_interface to p5_configured and p6_configured.
Make them boolean.

Do not set them for any other reason.

The priv->p5_intf_sel check is useless as in this code path, it will always
be P5_INTF_SEL_GMAC5.

There was also no need to set priv->p5_interface and priv->p6_interface to
PHY_INTERFACE_MODE_NA on mt7530_setup() and mt7531_setup() as they would
already be set to that when "priv" is allocated. The pointers were of the
phy_interface_t enumeration type, and the first element of the enum is
PHY_INTERFACE_MODE_NA. There was nothing in between that would change this
beforehand.

Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Acked-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/net/dsa/mt7530.c | 19 ++++---------------
drivers/net/dsa/mt7530.h | 10 ++++++----
2 files changed, 10 insertions(+), 19 deletions(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 5ef348b6a4b2..aab9ebb54d7d 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2237,8 +2237,6 @@ mt7530_setup(struct dsa_switch *ds)
val |= MHWTRAP_MANUAL;
mt7530_write(priv, MT7530_MHWTRAP, val);

- priv->p6_interface = PHY_INTERFACE_MODE_NA;
-
/* Enable and reset MIB counters */
mt7530_mib_reset(ds);

@@ -2454,10 +2452,6 @@ mt7531_setup(struct dsa_switch *ds)
mt7530_rmw(priv, MT7531_GPIO_MODE0, MT7531_GPIO0_MASK,
MT7531_GPIO0_INTERRUPT);

- /* Let phylink decide the interface later. */
- priv->p5_interface = PHY_INTERFACE_MODE_NA;
- priv->p6_interface = PHY_INTERFACE_MODE_NA;
-
/* Enable PHY core PLL, since phy_device has not yet been created
* provided for phy_[read,write]_mmd_indirect is called, we provide
* our own mt7531_ind_mmd_phy_[read,write] to complete this
@@ -2727,25 +2721,20 @@ mt753x_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
goto unsupported;
break;
case 5: /* Port 5, can be used as a CPU port. */
- if (priv->p5_interface == state->interface)
+ if (priv->p5_configured)
break;

if (mt753x_mac_config(ds, port, mode, state) < 0)
goto unsupported;
-
- if (priv->p5_intf_sel != P5_DISABLED)
- priv->p5_interface = state->interface;
break;
case 6: /* Port 6, can be used as a CPU port. */
- if (priv->p6_interface == state->interface)
+ if (priv->p6_configured)
break;

mt753x_pad_setup(ds, state);

if (mt753x_mac_config(ds, port, mode, state) < 0)
goto unsupported;
-
- priv->p6_interface = state->interface;
break;
default:
unsupported:
@@ -2853,12 +2842,12 @@ mt7531_cpu_port_config(struct dsa_switch *ds, int port)
else
interface = PHY_INTERFACE_MODE_2500BASEX;

- priv->p5_interface = interface;
+ priv->p5_configured = true;
break;
case 6:
interface = PHY_INTERFACE_MODE_2500BASEX;

- priv->p6_interface = interface;
+ priv->p6_configured = true;
break;
default:
return -EINVAL;
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index 2602c95fd3a5..06037be5882c 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -745,8 +745,10 @@ struct mt753x_info {
* @ports: Holding the state among ports
* @reg_mutex: The lock for protecting among process accessing
* registers
- * @p6_interface: Holding the current port 6 interface
- * @p5_interface: Holding the current port 5 interface
+ * @p6_configured: Flag for distinguishing if port 6 of the MT7531 switch
+ * is already configured
+ * @p5_configured: Flag for distinguishing if port 5 of the MT7531 switch
+ * is already configured
* @p5_intf_sel: Holding the current port 5 interface select
* @p5_sgmii: Flag for distinguishing if port 5 of the MT7531 switch
* has got SGMII
@@ -767,8 +769,8 @@ struct mt7530_priv {
const struct mt753x_info *info;
unsigned int id;
bool mcm;
- phy_interface_t p6_interface;
- phy_interface_t p5_interface;
+ bool p6_configured;
+ bool p5_configured;
enum p5_interface_select p5_intf_sel;
bool p5_sgmii;
u8 mirror_rx;
--
2.37.2