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stmmac: dwmac-mediatek: add platform level clocks management 

This patch implements clks_config callback for dwmac-mediatek platform,
which could support platform level clocks management.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Biao Huang 2022-03-14 15:57:07 +08:00 committed by David S. Miller
parent 79b0410841
commit 3186bdad97
1 changed files with 18 additions and 7 deletions
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25
drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c
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@ -9,7 +9,6 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_net.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/stmmac.h>
@ -359,9 +358,6 @@ static int mediatek_dwmac_init(struct platform_device *pdev, void *priv)
return ret;
}
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
return 0;
}
@ -370,11 +366,25 @@ static void mediatek_dwmac_exit(struct platform_device *pdev, void *priv)
struct mediatek_dwmac_plat_data *plat = priv;
clk_bulk_disable_unprepare(plat->num_clks_to_config, plat->clks);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
}
static int mediatek_dwmac_clks_config(void *priv, bool enabled)
{
struct mediatek_dwmac_plat_data *plat = priv;
int ret = 0;
if (enabled) {
ret = clk_bulk_prepare_enable(plat->num_clks_to_config, plat->clks);
if (ret) {
dev_err(plat->dev, "failed to enable clks, err = %d\n", ret);
return ret;
}
} else {
clk_bulk_disable_unprepare(plat->num_clks_to_config, plat->clks);
}
return ret;
}
static int mediatek_dwmac_probe(struct platform_device *pdev)
{
struct mediatek_dwmac_plat_data *priv_plat;
@ -420,6 +430,7 @@ static int mediatek_dwmac_probe(struct platform_device *pdev)
plat_dat->bsp_priv = priv_plat;
plat_dat->init = mediatek_dwmac_init;
plat_dat->exit = mediatek_dwmac_exit;
plat_dat->clks_config = mediatek_dwmac_clks_config;
mediatek_dwmac_init(pdev, priv_plat);
ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);