[PATCH v1 19/45] clk: mediatek: mt8183: Convert all remaining clocks to common probe

AngeloGioacchino Del Regno
2023-02-06T15:31:20Z

Switch to mtk_clk_simple_{probe,remove}() for infracfg and topckgen
clocks on MT8183 to allow full module build for clock drivers.
In order to do this, like done for other MediaTek clock drivers, it
was necessary to join top_early_divs with top_divs and to stop
registering the `clk13m` clock early.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/clk/mediatek/clk-mt8183.c | 160 ++++++------------------------
1 file changed, 28 insertions(+), 132 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
index 0fad2cf7f41b..035fdd02f0be 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -25,11 +25,8 @@ static const struct mtk_fixed_clk top_fixed_clks[] = {
FIXED_CLK(CLK_TOP_UNIVP_192M, "univpll_192m", "univpll", 192000000),
};

-static const struct mtk_fixed_factor top_early_divs[] = {
- FACTOR(CLK_TOP_CLK13M, "clk13m", "clk26m", 1, 2),
-};
-
static const struct mtk_fixed_factor top_divs[] = {
+ FACTOR(CLK_TOP_CLK13M, "clk13m", "clk26m", 1, 2),
FACTOR(CLK_TOP_F26M_CK_D2, "csw_f26m_ck_d2", "clk26m", 1, 2),
FACTOR_FLAGS(CLK_TOP_SYSPLL_CK, "syspll_ck", "mainpll", 1, 1, 0),
FACTOR_FLAGS(CLK_TOP_SYSPLL_D2, "syspll_d2", "syspll_ck", 1, 2, 0),
@@ -809,26 +806,6 @@ static const struct mtk_clk_rst_desc clk_rst_desc = {
.rst_bank_nr = ARRAY_SIZE(infra_rst_ofs),
};

-static struct clk_hw_onecell_data *top_clk_data;
-
-static void clk_mt8183_top_init_early(struct device_node *node)
-{
- int i;
-
- top_clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
-
- for (i = 0; i < CLK_TOP_NR_CLK; i++)
- top_clk_data->hws[i] = ERR_PTR(-EPROBE_DEFER);
-
- mtk_clk_register_factors(top_early_divs, ARRAY_SIZE(top_early_divs),
- top_clk_data);
-
- of_clk_add_hw_provider(node, of_clk_hw_onecell_get, top_clk_data);
-}
-
-CLK_OF_DECLARE_DRIVER(mt8183_topckgen, "mediatek,mt8183-topckgen",
- clk_mt8183_top_init_early);
-
/* Register mux notifier for MFG mux */
static int clk_mt8183_reg_mfg_mux_notifier(struct device *dev, struct clk *clk)
{
@@ -851,134 +828,53 @@ static int clk_mt8183_reg_mfg_mux_notifier(struct device *dev, struct clk *clk)
return devm_mtk_clk_mux_notifier_register(dev, clk, mfg_mux_nb);
}

-static int clk_mt8183_top_probe(struct platform_device *pdev)
-{
- void __iomem *base;
- struct device_node *node = pdev->dev.of_node;
- int ret;
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks),
- top_clk_data);
-
- mtk_clk_register_factors(top_early_divs, ARRAY_SIZE(top_early_divs),
- top_clk_data);
-
- mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), top_clk_data);
-
- mtk_clk_register_muxes(&pdev->dev, top_muxes,
- ARRAY_SIZE(top_muxes), node,
- &mt8183_clk_lock, top_clk_data);
-
- mtk_clk_register_composites(&pdev->dev, top_aud_comp,
- ARRAY_SIZE(top_aud_comp), base,
- &mt8183_clk_lock, top_clk_data);
-
- mtk_clk_register_gates(&pdev->dev, node, top_clks,
- ARRAY_SIZE(top_clks), top_clk_data);
-
- ret = clk_mt8183_reg_mfg_mux_notifier(&pdev->dev,
- top_clk_data->hws[CLK_TOP_MUX_MFG]->clk);
- if (ret)
- return ret;
-
- return of_clk_add_hw_provider(node, of_clk_hw_onecell_get,
- top_clk_data);
-}
-
-static int clk_mt8183_mcu_probe(struct platform_device *pdev)
-{
- struct clk_hw_onecell_data *clk_data;
- struct device_node *node = pdev->dev.of_node;
- void __iomem *base;
-
- base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- clk_data = mtk_alloc_clk_data(CLK_MCU_NR_CLK);
-
- mtk_clk_register_composites(&pdev->dev, mcu_muxes,
- ARRAY_SIZE(mcu_muxes), base,
- &mt8183_clk_lock, clk_data);
-
- return of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
-}
-
-static const struct of_device_id of_match_clk_mt8183[] = {
- {
- .compatible = "mediatek,mt8183-topckgen",
- .data = clk_mt8183_top_probe,
- }, {
- .compatible = "mediatek,mt8183-mcucfg",
- .data = clk_mt8183_mcu_probe,
- }, {
- /* sentinel */
- }
-};
-
-static int clk_mt8183_probe(struct platform_device *pdev)
-{
- int (*clk_probe)(struct platform_device *pdev);
- int r;
-
- clk_probe = of_device_get_match_data(&pdev->dev);
- if (!clk_probe)
- return -EINVAL;
-
- r = clk_probe(pdev);
- if (r)
- dev_err(&pdev->dev,
- "could not register clock provider: %s: %d\n",
- pdev->name, r);
-
- return r;
-}
-
static const struct mtk_clk_desc infra_desc = {
.clks = infra_clks,
.num_clks = ARRAY_SIZE(infra_clks),
.rst_desc = &clk_rst_desc,
};

+static const struct mtk_clk_desc mcu_desc = {
+ .composite_clks = mcu_muxes,
+ .num_composite_clks = ARRAY_SIZE(mcu_muxes),
+ .clk_lock = &mt8183_clk_lock,
+};
+
static const struct mtk_clk_desc peri_desc = {
.clks = peri_clks,
.num_clks = ARRAY_SIZE(peri_clks),
};

-static const struct of_device_id of_match_clk_mt8183_simple[] = {
+static const struct mtk_clk_desc topck_desc = {
+ .fixed_clks = top_fixed_clks,
+ .num_fixed_clks = ARRAY_SIZE(top_fixed_clks),
+ .factor_clks = top_divs,
+ .num_factor_clks = ARRAY_SIZE(top_divs),
+ .mux_clks = top_muxes,
+ .num_mux_clks = ARRAY_SIZE(top_muxes),
+ .composite_clks = top_aud_comp,
+ .num_composite_clks = ARRAY_SIZE(top_aud_comp),
+ .clks = top_clks,
+ .num_clks = ARRAY_SIZE(top_clks),
+ .clk_lock = &mt8183_clk_lock,
+ .clk_notifier_func = clk_mt8183_reg_mfg_mux_notifier,
+ .mfg_clk_idx = CLK_TOP_MUX_MFG,
+};
+
+static const struct of_device_id of_match_clk_mt8183[] = {
{ .compatible = "mediatek,mt8183-infracfg", .data = &infra_desc },
+ { .compatible = "mediatek,mt8183-mcucfg", .data = &mcu_desc },
{ .compatible = "mediatek,mt8183-pericfg", .data = &peri_desc, },
+ { .compatible = "mediatek,mt8183-topckgen", .data = &topck_desc },
{ /* sentinel */ }
};

-static struct platform_driver clk_mt8183_simple_drv = {
+static struct platform_driver clk_mt8183_drv = {
.probe = mtk_clk_simple_probe,
.remove = mtk_clk_simple_remove,
- .driver = {
- .name = "clk-mt8183-simple",
- .of_match_table = of_match_clk_mt8183_simple,
- },
-};
-
-static struct platform_driver clk_mt8183_drv = {
- .probe = clk_mt8183_probe,
.driver = {
.name = "clk-mt8183",
.of_match_table = of_match_clk_mt8183,
},
};
-
-static int __init clk_mt8183_init(void)
-{
- int ret = platform_driver_register(&clk_mt8183_drv);
-
- if (ret)
- return ret;
- return platform_driver_register(&clk_mt8183_simple_drv);
-}
-
-arch_initcall(clk_mt8183_init);
+module_platform_driver(clk_mt8183_drv)
--
2.39.1