TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: stmmac: add suspend()/resume() platform ops

Browse Source 
Add suspend/resume platform operations, which, when populated, override
the init/exit platform operations when we suspend and resume. These
suspend()/resume() methods are called by core code, and thus are
designed to support any struct device, not just platform devices. This
allows them to be used by the PCI drivers we have.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1ulXbX-008gqZ-Bb@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2025-08-11 19:50:43 +01:00 committed by Jakub Kicinski
parent c88c6b2db7
commit 07bbbfe7ad
3 changed files with 19 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -7879,6 +7879,9 @@ int stmmac_suspend(struct device *dev)
if (stmmac_fpe_supported(priv))
ethtool_mmsv_stop(&priv->fpe_cfg.mmsv);
if (priv->plat->suspend)
return priv->plat->suspend(dev, priv->plat->bsp_priv);
return 0;
}
EXPORT_SYMBOL_GPL(stmmac_suspend);
@ -7931,6 +7934,12 @@ int stmmac_resume(struct device *dev)
struct stmmac_priv *priv = netdev_priv(ndev);
int ret;
if (priv->plat->resume) {
ret = priv->plat->resume(dev, priv->plat->bsp_priv);
if (ret)
return ret;
}
if (!netif_running(ndev))
return 0;

12
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
View File

@ -901,7 +901,9 @@ static int __maybe_unused stmmac_pltfr_suspend(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
ret = stmmac_suspend(dev);
stmmac_pltfr_exit(pdev, priv->plat);
if (!priv->plat->suspend)
stmmac_pltfr_exit(pdev, priv->plat);
return ret;
}
@ -920,9 +922,11 @@ static int __maybe_unused stmmac_pltfr_resume(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
int ret;
ret = stmmac_pltfr_init(pdev, priv->plat);
if (ret)
return ret;
if (!priv->plat->resume) {
ret = stmmac_pltfr_init(pdev, priv->plat);
if (ret)
return ret;
}
return stmmac_resume(dev);
}

2
include/linux/stmmac.h
View File

@ -248,6 +248,8 @@ struct plat_stmmacenet_data {
void (*ptp_clk_freq_config)(struct stmmac_priv *priv);
int (*init)(struct platform_device *pdev, void *priv);
void (*exit)(struct platform_device *pdev, void *priv);
int (*suspend)(struct device *dev, void *priv);
int (*resume)(struct device *dev, void *priv);
struct mac_device_info *(*setup)(void *priv);
int (*clks_config)(void *priv, bool enabled);
int (*crosststamp)(ktime_t *device, struct system_counterval_t *system,