[v4,29/34] clk: mediatek: Add MT8192 msdc top clock support

Commit Message

Weiyi Lu Oct. 22, 2020, 12:37 p.m. UTC

Add MT8192 msdc top clock provider

Signed-off-by: Weiyi Lu <[e-mail]>
---
 drivers/clk/mediatek/Kconfig               |  6 +++
 drivers/clk/mediatek/Makefile              |  1 +
 drivers/clk/mediatek/clk-mt8192-msdc_top.c | 71 ++++++++++++++++++++++++++++++
 3 files changed, 78 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8192-msdc_top.c

Patch

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 218d23f..01a76ae 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -551,6 +551,12 @@  config COMMON_CLK_MT8192_MMSYS
 	help
 	  This driver supports MediaTek MT8192 mmsys clocks.
 
+config COMMON_CLK_MT8192_MSDC_TOP
+	bool "Clock driver for MediaTek MT8192 msdc_top"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 msdc_top clocks.
+
 config COMMON_CLK_MT8516
 	bool "Clock driver for MediaTek MT8516"
 	depends on ARCH_MEDIATEK || COMPILE_TEST
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 87868f7..4a30269 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -79,5 +79,6 @@  obj-$(CONFIG_COMMON_CLK_MT8192_IPESYS) += clk-mt8192-ipe.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MDPSYS) += clk-mt8192-mdp.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MFGCFG) += clk-mt8192-mfg.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MMSYS) += clk-mt8192-mm.o
+obj-$(CONFIG_COMMON_CLK_MT8192_MSDC_TOP) += clk-mt8192-msdc_top.o
 obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
 obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
diff --git a/drivers/clk/mediatek/clk-mt8192-msdc_top.c b/drivers/clk/mediatek/clk-mt8192-msdc_top.c
new file mode 100644
index 0000000..6f5ad65
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-msdc_top.c
@@ -0,0 +1,71 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2020 MediaTek Inc.
+// Author: Weiyi Lu <[e-mail]>
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt8192-clk.h>
+
+static const struct mtk_gate_regs msdc_top_cg_regs = {
+	.set_ofs = 0x0,
+	.clr_ofs = 0x0,
+	.sta_ofs = 0x0,
+};
+
+#define GATE_MSDC_TOP(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &msdc_top_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+static const struct mtk_gate msdc_top_clks[] = {
+	GATE_MSDC_TOP(CLK_MSDC_TOP_AES_0P, "msdc_top_aes_0p", "aes_msdcfde_sel", 0),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_SRC_0P, "msdc_top_src_0p", "infra_msdc0_src", 1),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_SRC_1P, "msdc_top_src_1p", "infra_msdc1_src", 2),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_SRC_2P, "msdc_top_src_2p", "infra_msdc2_src", 3),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_P_MSDC0, "msdc_top_p_msdc0", "axi_sel", 4),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_P_MSDC1, "msdc_top_p_msdc1", "axi_sel", 5),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_P_MSDC2, "msdc_top_p_msdc2", "axi_sel", 6),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_P_CFG, "msdc_top_p_cfg", "axi_sel", 7),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_AXI, "msdc_top_axi", "axi_sel", 8),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_H_MST_0P, "msdc_top_h_mst_0p", "infra_msdc0", 9),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_H_MST_1P, "msdc_top_h_mst_1p", "infra_msdc1", 10),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_H_MST_2P, "msdc_top_h_mst_2p", "infra_msdc2", 11),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_MEM_OFF_DLY_26M, "msdc_top_mem_off_dly_26m", "clk26m", 12),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_32K, "msdc_top_32k", "clk32k", 13),
+	GATE_MSDC_TOP(CLK_MSDC_TOP_AHB2AXI_BRG_AXI, "msdc_top_ahb2axi_brg_axi", "axi_sel", 14),
+};
+
+static int clk_mt8192_msdc_top_probe(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_MSDC_TOP_NR_CLK);
+	if (!clk_data)
+		return -ENOMEM;
+
+	r = mtk_clk_register_gates(node, msdc_top_clks, ARRAY_SIZE(msdc_top_clks), clk_data);
+	if (r)
+		return r;
+
+	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static const struct of_device_id of_match_clk_mt8192_msdc_top[] = {
+	{ .compatible = "mediatek,mt8192-msdc_top", },
+	{}
+};
+
+static struct platform_driver clk_mt8192_msdc_top_drv = {
+	.probe = clk_mt8192_msdc_top_probe,
+	.driver = {
+		.name = "clk-mt8192-msdc_top",
+		.of_match_table = of_match_clk_mt8192_msdc_top,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_msdc_top_drv);