[PATCH v3 54/55] clk: mediatek: mt8135: Convert to simple probe and enable module build
From: AngeloGioacchino Del Regno
Date: Mon Feb 20 2023 - 10:05:16 EST
Convert the MT8135 clock drivers to platform_driver using the common
simple probe mechanism.
Now that all of the MT8135 clock drivers (including apmixedsys) can
be compiled as modules, change the COMMON_CLK_MT8135 configuration
option to tristate to enable module build.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
drivers/clk/mediatek/Kconfig | 2 +-
drivers/clk/mediatek/clk-mt8135.c | 110 ++++++++++++------------------
2 files changed, 43 insertions(+), 69 deletions(-)
diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 90691261cddb..a15fbdfd3a53 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -423,7 +423,7 @@ config COMMON_CLK_MT7986_ETHSYS
required on MediaTek MT7986 SoC.
config COMMON_CLK_MT8135
- bool "Clock driver for MediaTek MT8135"
+ tristate "Clock driver for MediaTek MT8135"
depends on (ARCH_MEDIATEK && ARM) || COMPILE_TEST
select COMMON_CLK_MEDIATEK
default ARCH_MEDIATEK && ARM
diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c
index 8785d58cb3a5..39fd919900e5 100644
--- a/drivers/clk/mediatek/clk-mt8135.c
+++ b/drivers/clk/mediatek/clk-mt8135.c
@@ -5,8 +5,10 @@
*/
#include <linux/clk.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/mfd/syscon.h>
#include <dt-bindings/clock/mt8135-clk.h>
@@ -18,6 +20,7 @@
static DEFINE_SPINLOCK(mt8135_clk_lock);
static const struct mtk_fixed_factor top_divs[] __initconst = {
+ FACTOR(CLK_DUMMY, "top_divs_dummy", "clk_null", 1, 1),
FACTOR(CLK_TOP_DSI0_LNTC_DSICLK, "dsi0_lntc_dsiclk", "clk_null", 1, 1),
FACTOR(CLK_TOP_HDMITX_CLKDIG_CTS, "hdmitx_clkdig_cts", "clk_null", 1, 1),
FACTOR(CLK_TOP_CLKPH_MCK, "clkph_mck", "clk_null", 1, 1),
@@ -407,6 +410,7 @@ static const struct mtk_gate_regs infra_cg_regs = {
&mtk_clk_gate_ops_setclr, CLK_IS_CRITICAL)
static const struct mtk_gate infra_clks[] __initconst = {
+ GATE_DUMMY(CLK_DUMMY, "infra_dummy"),
GATE_ICG(CLK_INFRA_PMIC_WRAP, "pmic_wrap_ck", "axi_sel", 23),
GATE_ICG(CLK_INFRA_PMICSPI, "pmicspi_ck", "pmicspi_sel", 22),
GATE_ICG(CLK_INFRA_CCIF1_AP_CTRL, "ccif1_ap_ctrl", "axi_sel", 21),
@@ -441,6 +445,7 @@ static const struct mtk_gate_regs peri1_cg_regs = {
GATE_MTK(_id, _name, _parent, &peri1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
static const struct mtk_gate peri_gates[] __initconst = {
+ GATE_DUMMY(CLK_DUMMY, "peri_dummy"),
/* PERI0 */
GATE_PERI0(CLK_PERI_I2C5, "i2c5_ck", "axi_sel", 31),
GATE_PERI0(CLK_PERI_I2C4, "i2c4_ck", "axi_sel", 30),
@@ -516,77 +521,46 @@ static const struct mtk_clk_rst_desc clk_rst_desc[] = {
}
};
-static void __init mtk_topckgen_init(struct device_node *node)
-{
- struct clk_hw_onecell_data *clk_data;
- void __iomem *base;
- int r;
-
- base = of_iomap(node, 0);
- if (!base) {
- pr_err("%s(): ioremap failed\n", __func__);
- return;
- }
+static const struct mtk_clk_desc infra_desc = {
+ .clks = infra_clks,
+ .num_clks = ARRAY_SIZE(infra_clks),
+ .rst_desc = &clk_rst_desc[0],
+};
- clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
-
- mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs), clk_data);
- mtk_clk_register_composites(NULL, top_muxes,
- ARRAY_SIZE(top_muxes), base,
- &mt8135_clk_lock, clk_data);
-
- r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
- if (r)
- pr_err("%s(): could not register clock provider: %d\n",
- __func__, r);
-}
-CLK_OF_DECLARE(mtk_topckgen, "mediatek,mt8135-topckgen", mtk_topckgen_init);
-
-static void __init mtk_infrasys_init(struct device_node *node)
-{
- struct clk_hw_onecell_data *clk_data;
- int r;
-
- clk_data = mtk_alloc_clk_data(CLK_INFRA_NR_CLK);
-
- mtk_clk_register_gates(NULL, node, infra_clks,
- ARRAY_SIZE(infra_clks), clk_data);
-
- r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
- if (r)
- pr_err("%s(): could not register clock provider: %d\n",
- __func__, r);
-
- mtk_register_reset_controller(node, &clk_rst_desc[0]);
-}
-CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8135-infracfg", mtk_infrasys_init);
-
-static void __init mtk_pericfg_init(struct device_node *node)
-{
- struct clk_hw_onecell_data *clk_data;
- int r;
- void __iomem *base;
-
- base = of_iomap(node, 0);
- if (!base) {
- pr_err("%s(): ioremap failed\n", __func__);
- return;
- }
+static const struct mtk_clk_desc peri_desc = {
+ .clks = peri_gates,
+ .num_clks = ARRAY_SIZE(peri_gates),
+ .composite_clks = peri_clks,
+ .num_composite_clks = ARRAY_SIZE(peri_clks),
+ .clk_lock = &mt8135_clk_lock,
+ .rst_desc = &clk_rst_desc[1],
+};
- clk_data = mtk_alloc_clk_data(CLK_PERI_NR_CLK);
+static const struct mtk_clk_desc topck_desc = {
+ .factor_clks = top_divs,
+ .num_factor_clks = ARRAY_SIZE(top_divs),
+ .composite_clks = top_muxes,
+ .num_composite_clks = ARRAY_SIZE(top_muxes),
+ .clk_lock = &mt8135_clk_lock,
+};
- mtk_clk_register_gates(NULL, node, peri_gates,
- ARRAY_SIZE(peri_gates), clk_data);
- mtk_clk_register_composites(NULL, peri_clks,
- ARRAY_SIZE(peri_clks), base,
- &mt8135_clk_lock, clk_data);
+static const struct of_device_id of_match_clk_mt8135[] = {
+ { .compatible = "mediatek,mt8135-infracfg", .data = &infra_desc },
+ { .compatible = "mediatek,mt8135-pericfg", .data = &peri_desc },
+ { .compatible = "mediatek,mt8135-topckgen", .data = &topck_desc },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt8135);
- r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
- if (r)
- pr_err("%s(): could not register clock provider: %d\n",
- __func__, r);
+static struct platform_driver clk_mt8135_drv = {
+ .driver = {
+ .name = "clk-mt8135",
+ .of_match_table = of_match_clk_mt8135,
+ },
+ .probe = mtk_clk_simple_probe,
+ .remove = mtk_clk_simple_remove,
+};
+module_platform_driver(clk_mt8135_drv);
- mtk_register_reset_controller(node, &clk_rst_desc[1]);
-}
-CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8135-pericfg", mtk_pericfg_init);
+MODULE_DESCRIPTION("MediaTek MT8135 clocks driver");
MODULE_LICENSE("GPL");
--
2.39.1