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Merge branch 'stmmac-ptp-fix'

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Mohammad Athari Bin Ismail says:

====================
Fix PTP issue in stmmac

This patch series to fix PTP issue in stmmac related to:
1/ PTP clock source configuration during initialization.
2/ PTP initialization during resume from suspend.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2022-01-27 13:46:18 +00:00
commit aa44323e1c
2 changed files with 12 additions and 14 deletions
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23
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -890,6 +890,9 @@ static int stmmac_init_ptp(struct stmmac_priv *priv)
bool xmac = priv->plat->has_gmac4 || priv->plat->has_xgmac;
int ret;
if (priv->plat->ptp_clk_freq_config)
priv->plat->ptp_clk_freq_config(priv);
ret = stmmac_init_tstamp_counter(priv, STMMAC_HWTS_ACTIVE);
if (ret)
return ret;
@ -912,8 +915,6 @@ static int stmmac_init_ptp(struct stmmac_priv *priv)
priv->hwts_tx_en = 0;
priv->hwts_rx_en = 0;
stmmac_ptp_register(priv);
return 0;
}
@ -3239,7 +3240,7 @@ static int stmmac_fpe_start_wq(struct stmmac_priv *priv)
/**
* stmmac_hw_setup - setup mac in a usable state.
* @dev : pointer to the device structure.
* @init_ptp: initialize PTP if set
* @ptp_register: register PTP if set
* Description:
* this is the main function to setup the HW in a usable state because the
* dma engine is reset, the core registers are configured (e.g. AXI,
@ -3249,7 +3250,7 @@ static int stmmac_fpe_start_wq(struct stmmac_priv *priv)
* 0 on success and an appropriate (-)ve integer as defined in errno.h
* file on failure.
*/
static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
{
struct stmmac_priv *priv = netdev_priv(dev);
u32 rx_cnt = priv->plat->rx_queues_to_use;
@ -3306,13 +3307,13 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
stmmac_mmc_setup(priv);
if (init_ptp) {
ret = stmmac_init_ptp(priv);
if (ret == -EOPNOTSUPP)
netdev_warn(priv->dev, "PTP not supported by HW\n");
else if (ret)
netdev_warn(priv->dev, "PTP init failed\n");
}
ret = stmmac_init_ptp(priv);
if (ret == -EOPNOTSUPP)
netdev_warn(priv->dev, "PTP not supported by HW\n");
else if (ret)
netdev_warn(priv->dev, "PTP init failed\n");
else if (ptp_register)
stmmac_ptp_register(priv);
priv->eee_tw_timer = STMMAC_DEFAULT_TWT_LS;

3
drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
View File

@ -297,9 +297,6 @@ void stmmac_ptp_register(struct stmmac_priv *priv)
{
int i;
if (priv->plat->ptp_clk_freq_config)
priv->plat->ptp_clk_freq_config(priv);
for (i = 0; i < priv->dma_cap.pps_out_num; i++) {
if (i >= STMMAC_PPS_MAX)
break;