Commit 3186bdad authored by Biao Huang's avatar Biao Huang Committed by David S. Miller
Browse files

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: default avatarBiao Huang <biao.huang@mediatek.com>
Acked-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 79b04108

drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c

+18 −7
Original line number Diff line number Diff line
@@ -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);