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

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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: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Link: https://lore.kernel.org/r/20210726105719.15793-9-chun-jie.chen@mediatek.com
Reviewed-by: Ikjoon Jang <ikjn@chromium.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Chun-Jie Chen 2021-07-26 18:57:06 +08:00 committed by Stephen Boyd
parent f384c44754
commit c58cd0e40f
2 changed files with 31 additions and 0 deletions
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23
drivers/clk/mediatek/clk-mtk.c
View File

@ -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);
}

8
drivers/clk/mediatek/clk-mtk.h
View File

@ -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 */