diff mbox series

[v3,54/55] clk: mediatek: mt8135: Convert to simple probe and enable module build

Message ID 20230220150111.77897-55-angelogioacchino.delregno@collabora.com
State New
Headers
Series MediaTek clocks: full module build and cleanups |

Commit Message

AngeloGioacchino Del Regno Feb. 20, 2023, 3:01 p.m. UTC 
  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@collabora.com>
---
 drivers/clk/mediatek/Kconfig      |   2 +-
 drivers/clk/mediatek/clk-mt8135.c | 110 ++++++++++++------------------
 2 files changed, 43 insertions(+), 69 deletions(-)

Comments

Chen-Yu Tsai Feb. 21, 2023, 4 a.m. UTC | #1 
On Mon, Feb 20, 2023 at 11:02 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
>
> 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@collabora.com>
> ---
>  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),

The dummy clock stuff deserves another mention in the commit log.

Once added,

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
diff mbox series

Patch

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");