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net: stmmac: platform: provide devm_stmmac_probe_config_dt()

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[ Upstream commit d740654273 ]

Provide a devres variant of stmmac_probe_config_dt() that allows users to
skip calling stmmac_remove_config_dt() at driver detach.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20230623100417.93592-9-brgl@bgdev.pl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 2b6ffcd7873b ("net: stmmac: restructure the error path of stmmac_probe_config_dt()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bartosz Golaszewski
2023-06-23 12:04:14 +02:00
committed by Greg Kroah-Hartman
parent b46cff8774
commit 40b78dbdf5
2 changed files with 43 additions and 0 deletions
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41
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
View File

@@ -8,6 +8,7 @@
Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/module.h>
@@ -628,6 +629,39 @@ error_pclk_get:
return ret;
}
static void devm_stmmac_remove_config_dt(void *data)
{
struct plat_stmmacenet_data *plat = data;
/* Platform data argument is unused */
stmmac_remove_config_dt(NULL, plat);
}
/**
* devm_stmmac_probe_config_dt
* @pdev: platform_device structure
* @mac: MAC address to use
* Description: Devres variant of stmmac_probe_config_dt(). Does not require
* the user to call stmmac_remove_config_dt() at driver detach.
*/
struct plat_stmmacenet_data *
devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
{
struct plat_stmmacenet_data *plat;
int ret;
plat = stmmac_probe_config_dt(pdev, mac);
if (IS_ERR(plat))
return plat;
ret = devm_add_action_or_reset(&pdev->dev,
devm_stmmac_remove_config_dt, plat);
if (ret)
return ERR_PTR(ret);
return plat;
}
/**
* stmmac_remove_config_dt - undo the effects of stmmac_probe_config_dt()
* @pdev: platform_device structure
@@ -650,12 +684,19 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
return ERR_PTR(-EINVAL);
}
struct plat_stmmacenet_data *
devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
{
return ERR_PTR(-EINVAL);
}
void stmmac_remove_config_dt(struct platform_device *pdev,
struct plat_stmmacenet_data *plat)
{
}
#endif /* CONFIG_OF */
EXPORT_SYMBOL_GPL(stmmac_probe_config_dt);
EXPORT_SYMBOL_GPL(devm_stmmac_probe_config_dt);
EXPORT_SYMBOL_GPL(stmmac_remove_config_dt);
int stmmac_get_platform_resources(struct platform_device *pdev,

2
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.h
View File

@@ -13,6 +13,8 @@
struct plat_stmmacenet_data *
stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac);
struct plat_stmmacenet_data *
devm_stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac);
void stmmac_remove_config_dt(struct platform_device *pdev,
struct plat_stmmacenet_data *plat);