[v4,26/34] clk: mediatek: Add MT8192 mdpsys clock support

Commit Message

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

Add MT8192 mdpsys clock provider

Signed-off-by: Weiyi Lu <[e-mail]>
---
 drivers/clk/mediatek/Kconfig          |  6 +++
 drivers/clk/mediatek/Makefile         |  1 +
 drivers/clk/mediatek/clk-mt8192-mdp.c | 89 +++++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 drivers/clk/mediatek/clk-mt8192-mdp.c

Patch

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index df75a09..ef04d54 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -533,6 +533,12 @@  config COMMON_CLK_MT8192_IPESYS
 	help
 	  This driver supports MediaTek MT8192 ipesys clocks.
 
+config COMMON_CLK_MT8192_MDPSYS
+	bool "Clock driver for MediaTek MT8192 mdpsys"
+	depends on COMMON_CLK_MT8192
+	help
+	  This driver supports MediaTek MT8192 mdpsys 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 5fe21f9..0e5c5d8 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -76,5 +76,6 @@  obj-$(CONFIG_COMMON_CLK_MT8192_IMP_IIC_WRAP_S) += clk-mt8192-imp_iic_wrap_s.o
 obj-$(CONFIG_COMMON_CLK_MT8192_IMP_IIC_WRAP_W) += clk-mt8192-imp_iic_wrap_w.o
 obj-$(CONFIG_COMMON_CLK_MT8192_IMP_IIC_WRAP_WS) += clk-mt8192-imp_iic_wrap_ws.o
 obj-$(CONFIG_COMMON_CLK_MT8192_IPESYS) += clk-mt8192-ipe.o
+obj-$(CONFIG_COMMON_CLK_MT8192_MDPSYS) += clk-mt8192-mdp.o
 obj-$(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-mdp.c b/drivers/clk/mediatek/clk-mt8192-mdp.c
new file mode 100644
index 0000000..2df020d
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-mdp.c
@@ -0,0 +1,89 @@ 
+// 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 mdp0_cg_regs = {
+	.set_ofs = 0x104,
+	.clr_ofs = 0x108,
+	.sta_ofs = 0x100,
+};
+
+static const struct mtk_gate_regs mdp1_cg_regs = {
+	.set_ofs = 0x124,
+	.clr_ofs = 0x128,
+	.sta_ofs = 0x120,
+};
+
+#define GATE_MDP0(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &mdp0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_MDP1(_id, _name, _parent, _shift)	\
+	GATE_MTK(_id, _name, _parent, &mdp1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate mdp_clks[] = {
+	/* MDP0 */
+	GATE_MDP0(CLK_MDP_RDMA0, "mdp_mdp_rdma0", "mdp_sel", 0),
+	GATE_MDP0(CLK_MDP_TDSHP0, "mdp_mdp_tdshp0", "mdp_sel", 1),
+	GATE_MDP0(CLK_MDP_IMG_DL_ASYNC0, "mdp_img_dl_async0", "mdp_sel", 2),
+	GATE_MDP0(CLK_MDP_IMG_DL_ASYNC1, "mdp_img_dl_async1", "mdp_sel", 3),
+	GATE_MDP0(CLK_MDP_RDMA1, "mdp_mdp_rdma1", "mdp_sel", 4),
+	GATE_MDP0(CLK_MDP_TDSHP1, "mdp_mdp_tdshp1", "mdp_sel", 5),
+	GATE_MDP0(CLK_MDP_SMI0, "mdp_smi0", "mdp_sel", 6),
+	GATE_MDP0(CLK_MDP_APB_BUS, "mdp_apb_bus", "mdp_sel", 7),
+	GATE_MDP0(CLK_MDP_WROT0, "mdp_mdp_wrot0", "mdp_sel", 8),
+	GATE_MDP0(CLK_MDP_RSZ0, "mdp_mdp_rsz0", "mdp_sel", 9),
+	GATE_MDP0(CLK_MDP_HDR0, "mdp_mdp_hdr0", "mdp_sel", 10),
+	GATE_MDP0(CLK_MDP_MUTEX0, "mdp_mdp_mutex0", "mdp_sel", 11),
+	GATE_MDP0(CLK_MDP_WROT1, "mdp_mdp_wrot1", "mdp_sel", 12),
+	GATE_MDP0(CLK_MDP_RSZ1, "mdp_mdp_rsz1", "mdp_sel", 13),
+	GATE_MDP0(CLK_MDP_HDR1, "mdp_mdp_hdr1", "mdp_sel", 14),
+	GATE_MDP0(CLK_MDP_FAKE_ENG0, "mdp_mdp_fake_eng0", "mdp_sel", 15),
+	GATE_MDP0(CLK_MDP_AAL0, "mdp_mdp_aal0", "mdp_sel", 16),
+	GATE_MDP0(CLK_MDP_AAL1, "mdp_mdp_aal1", "mdp_sel", 17),
+	GATE_MDP0(CLK_MDP_COLOR0, "mdp_mdp_color0", "mdp_sel", 18),
+	GATE_MDP0(CLK_MDP_COLOR1, "mdp_mdp_color1", "mdp_sel", 19),
+	/* MDP1 */
+	GATE_MDP1(CLK_MDP_IMG_DL_RELAY0_ASYNC0, "mdp_img_dl_relay0_async0", "mdp_sel", 0),
+	GATE_MDP1(CLK_MDP_IMG_DL_RELAY1_ASYNC1, "mdp_img_dl_relay1_async1", "mdp_sel", 8),
+};
+
+static int clk_mt8192_mdp_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_MDP_NR_CLK);
+	if (!clk_data)
+		return -ENOMEM;
+
+	r = mtk_clk_register_gates(node, mdp_clks, ARRAY_SIZE(mdp_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_mdp[] = {
+	{ .compatible = "mediatek,mt8192-mdpsys", },
+	{}
+};
+
+static struct platform_driver clk_mt8192_mdp_drv = {
+	.probe = clk_mt8192_mdp_probe,
+	.driver = {
+		.name = "clk-mt8192-mdp",
+		.of_match_table = of_match_clk_mt8192_mdp,
+	},
+};
+
+builtin_platform_driver(clk_mt8192_mdp_drv);