[v13 08/21] clk: mediatek: Add mtk_clk_simple_probe() to simplify clock providers
From: Chun-Jie Chen <hidden>
Date: 2021-07-06 06:20:42
Also in:
linux-arm-kernel, linux-clk, linux-devicetree, lkml
Subsystem:
common clk framework, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Linus Torvalds
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 <redacted> Signed-off-by: Chun-Jie Chen <redacted> --- drivers/clk/mediatek/clk-mtk.c | 23 +++++++++++++++++++++++ drivers/clk/mediatek/clk-mtk.h | 8 ++++++++ 2 files changed, 31 insertions(+)
diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 37d2aa32175e..4b6096c44d74 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c@@ -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); +}
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index 31c7cb304508..7de41c3b3206 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h@@ -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 */
--
2.18.0
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