diff mbox series

[RFC,net-next,5/8] net: dsa: mt7530: move enabling port 6 to mt7530_setup_port6()

Message ID 20240113102529.80371-6-arinc.unal@arinc9.com (mailing list archive)
State New, archived
Headers show
Series MT7530 DSA Subdriver Improvements Act II | expand

Commit Message

Arınç ÜNAL Jan. 13, 2024, 10:25 a.m. UTC 
Enable port 6 only when port 6 is being used. Update the comment on
mt7530_setup() with a better explanation. Do not set MHWTRAP_MANUAL on
mt7530_setup_port5() as it's already done on mt7530_setup() beforehand.

Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
---
 drivers/net/dsa/mt7530.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Comments

Vladimir Oltean Jan. 15, 2024, 9:24 p.m. UTC | #1 
On Sat, Jan 13, 2024 at 01:25:26PM +0300, Arınç ÜNAL wrote:
> Enable port 6 only when port 6 is being used. Update the comment on
> mt7530_setup() with a better explanation. Do not set MHWTRAP_MANUAL on
> mt7530_setup_port5() as it's already done on mt7530_setup() beforehand.
> 
> Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
> ---

Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
diff mbox series

Patch

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index d3e1e31ac8d0..3ce4e0bb04dd 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -420,6 +420,8 @@  mt7530_setup_port6(struct dsa_switch *ds, phy_interface_t interface)
 	struct mt7530_priv *priv = ds->priv;
 	u32 ncpo1, ssc_delta, trgint, xtal;
 
+	mt7530_clear(priv, MT7530_MHWTRAP, MHWTRAP_P6_DIS);
+
 	xtal = mt7530_read(priv, MT7530_MHWTRAP) & HWTRAP_XTAL_MASK;
 
 	switch (interface) {
@@ -910,7 +912,7 @@  static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
 
 	val = mt7530_read(priv, MT7530_MHWTRAP);
 
-	val |= MHWTRAP_MANUAL | MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS;
+	val |= MHWTRAP_P5_MAC_SEL | MHWTRAP_P5_DIS;
 	val &= ~MHWTRAP_P5_RGMII_MODE & ~MHWTRAP_PHY0_SEL;
 
 	switch (priv->p5_intf_sel) {
@@ -2250,9 +2252,11 @@  mt7530_setup(struct dsa_switch *ds)
 		mt7530_rmw(priv, MT7530_TRGMII_RD(i),
 			   RD_TAP_MASK, RD_TAP(16));
 
-	/* Enable port 6 */
+	/* Directly access the PHY registers via C_MDC/C_MDIO. The bit that
+	 * enables modifying the hardware trap must be set for this.
+	 */
 	val = mt7530_read(priv, MT7530_MHWTRAP);
-	val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
+	val &= ~MHWTRAP_PHY_ACCESS;
 	val |= MHWTRAP_MANUAL;
 	mt7530_write(priv, MT7530_MHWTRAP, val);