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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-16 18:36:12 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-10-16 18:36:12 +0300
commitd0d27ef87e1ca974ed93ed4f7d3c123cbd392ba6 (patch)
treef7c3e3259579973c896c634e2bdabed31a171395 /drivers/net/ethernet/renesas/rswitch.c
parent1034cc423f1b4a7a9a56d310ca980fcd2753e11d (diff)
parent58720809f52779dc0f08e53e54b014209d13eebb (diff)
downloadlinux-d0d27ef87e1ca974ed93ed4f7d3c123cbd392ba6.tar.xz
Merge 6.6-rc6 into usb-next
We need the USB and Thunderbolt fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/net/ethernet/renesas/rswitch.c')
-rw-r--r--drivers/net/ethernet/renesas/rswitch.c25
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c
index ea9186178091..0fc0b6bea753 100644
--- a/drivers/net/ethernet/renesas/rswitch.c
+++ b/drivers/net/ethernet/renesas/rswitch.c
@@ -4,6 +4,7 @@
* Copyright (C) 2022 Renesas Electronics Corporation
*/
+#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/etherdevice.h>
@@ -1049,7 +1050,7 @@ static void rswitch_rmac_setting(struct rswitch_etha *etha, const u8 *mac)
static void rswitch_etha_enable_mii(struct rswitch_etha *etha)
{
rswitch_modify(etha->addr, MPIC, MPIC_PSMCS_MASK | MPIC_PSMHT_MASK,
- MPIC_PSMCS(0x05) | MPIC_PSMHT(0x06));
+ MPIC_PSMCS(etha->psmcs) | MPIC_PSMHT(0x06));
rswitch_modify(etha->addr, MPSM, 0, MPSM_MFF_C45);
}
@@ -1253,7 +1254,7 @@ static void rswitch_adjust_link(struct net_device *ndev)
phy_print_status(phydev);
if (phydev->link)
phy_power_on(rdev->serdes);
- else
+ else if (rdev->serdes->power_count)
phy_power_off(rdev->serdes);
rdev->etha->link = phydev->link;
@@ -1693,6 +1694,12 @@ static void rswitch_etha_init(struct rswitch_private *priv, int index)
etha->index = index;
etha->addr = priv->addr + RSWITCH_ETHA_OFFSET + index * RSWITCH_ETHA_SIZE;
etha->coma_addr = priv->addr;
+
+ /* MPIC.PSMCS = (clk [MHz] / (MDC frequency [MHz] * 2) - 1.
+ * Calculating PSMCS value as MDC frequency = 2.5MHz. So, multiply
+ * both the numerator and the denominator by 10.
+ */
+ etha->psmcs = clk_get_rate(priv->clk) / 100000 / (25 * 2) - 1;
}
static int rswitch_device_alloc(struct rswitch_private *priv, int index)
@@ -1900,6 +1907,10 @@ static int renesas_eth_sw_probe(struct platform_device *pdev)
return -ENOMEM;
spin_lock_init(&priv->lock);
+ priv->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(priv->clk))
+ return PTR_ERR(priv->clk);
+
attr = soc_device_match(rswitch_soc_no_speed_change);
if (attr)
priv->etha_no_runtime_change = true;
@@ -1953,15 +1964,17 @@ static void rswitch_deinit(struct rswitch_private *priv)
rswitch_gwca_hw_deinit(priv);
rcar_gen4_ptp_unregister(priv->ptp_priv);
- for (i = 0; i < RSWITCH_NUM_PORTS; i++) {
+ rswitch_for_each_enabled_port(priv, i) {
struct rswitch_device *rdev = priv->rdev[i];
- phy_exit(priv->rdev[i]->serdes);
- rswitch_ether_port_deinit_one(rdev);
unregister_netdev(rdev->ndev);
- rswitch_device_free(priv, i);
+ rswitch_ether_port_deinit_one(rdev);
+ phy_exit(priv->rdev[i]->serdes);
}
+ for (i = 0; i < RSWITCH_NUM_PORTS; i++)
+ rswitch_device_free(priv, i);
+
rswitch_gwca_ts_queue_free(priv);
rswitch_gwca_linkfix_free(priv);