Commit c58cd0e4 authored by Chun-Jie Chen's avatar Chun-Jie Chen Committed by Stephen Boyd
Browse files

clk: mediatek: Add mtk_clk_simple_probe() to simplify clock providers 



Most of subsystem clock providers only need to register clock gates
in their probe() function.
To reduce the duplicated code by add a generic function.

Signed-off-by: default avatarWeiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: default avatarChun-Jie Chen <chun-jie.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210726105719.15793-9-chun-jie.chen@mediatek.com


Reviewed-by: default avatarIkjoon Jang <ikjn@chromium.org>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent f384c447

drivers/clk/mediatek/clk-mtk.c

+23 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <linux/clkdev.h>

#include <linux/mfd/syscon.h>

#include <linux/device.h>

#include <linux/of_device.h>



#include "clk-mtk.h"

#include "clk-gate.h"
@@ -286,3 +287,25 @@ void mtk_clk_register_dividers(const struct mtk_clk_divider *mcds, 
			clk_data->clks[mcd->id] = clk;

	}

}



int mtk_clk_simple_probe(struct platform_device *pdev)

{

	const struct mtk_clk_desc *mcd;

	struct clk_onecell_data *clk_data;

	struct device_node *node = pdev->dev.of_node;

	int r;



	mcd = of_device_get_match_data(&pdev->dev);

	if (!mcd)

		return -EINVAL;



	clk_data = mtk_alloc_clk_data(mcd->num_clks);

	if (!clk_data)

		return -ENOMEM;



	r = mtk_clk_register_gates(node, mcd->clks, mcd->num_clks, clk_data);

	if (r)

		return r;



	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);

}

drivers/clk/mediatek/clk-mtk.h

+8 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <linux/regmap.h>

#include <linux/bitops.h>

#include <linux/clk-provider.h>

#include <linux/platform_device.h>



struct clk;

struct clk_onecell_data;
@@ -250,4 +251,11 @@ void mtk_register_reset_controller(struct device_node *np, 
void mtk_register_reset_controller_set_clr(struct device_node *np,

	unsigned int num_regs, int regofs);



struct mtk_clk_desc {

	const struct mtk_gate *clks;

	size_t num_clks;

};



int mtk_clk_simple_probe(struct platform_device *pdev);



#endif /* __DRV_CLK_MTK_H */