clk: mediatek: Add MT8192 mmsys clock support

Add MT8192 mmsys clock provider

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20210726105719.15793-18-chun-jie.chen@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index e212f34..5b89a4d 100644 (file)
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -550,6 +550,12 @@ config COMMON_CLK_MT8192_MFGCFG
        help
          This driver supports MediaTek MT8192 mfgcfg clocks.
 
+config COMMON_CLK_MT8192_MMSYS
+       bool "Clock driver for MediaTek MT8192 mmsys"
+       depends on COMMON_CLK_MT8192
+       help
+         This driver supports MediaTek MT8192 mmsys 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 024841a..838bb01 100644 (file)
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -75,5 +75,6 @@ obj-$(CONFIG_COMMON_CLK_MT8192_IMP_IIC_WRAP) += clk-mt8192-imp_iic_wrap.o
 obj-$(CONFIG_COMMON_CLK_MT8192_IPESYS) += clk-mt8192-ipe.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MDPSYS) += clk-mt8192-mdp.o
 obj-$(CONFIG_COMMON_CLK_MT8192_MFGCFG) += clk-mt8192-mfg.o
+obj-$(CONFIG_COMMON_CLK_MT8192_MMSYS) += clk-mt8192-mm.o
 obj-$(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-mm.c b/drivers/clk/mediatek/clk-mt8192-mm.c
new file mode 100644 (file)
index 0000000..4a0b4c4
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8192-mm.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright (c) 2021 MediaTek Inc.
+// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+#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 mm0_cg_regs = {
+       .set_ofs = 0x104,
+       .clr_ofs = 0x108,
+       .sta_ofs = 0x100,
+};
+
+static const struct mtk_gate_regs mm1_cg_regs = {
+       .set_ofs = 0x114,
+       .clr_ofs = 0x118,
+       .sta_ofs = 0x110,
+};
+
+static const struct mtk_gate_regs mm2_cg_regs = {
+       .set_ofs = 0x1a4,
+       .clr_ofs = 0x1a8,
+       .sta_ofs = 0x1a0,
+};
+
+#define GATE_MM0(_id, _name, _parent, _shift)  \
+       GATE_MTK(_id, _name, _parent, &mm0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_MM1(_id, _name, _parent, _shift)  \
+       GATE_MTK(_id, _name, _parent, &mm1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+#define GATE_MM2(_id, _name, _parent, _shift)  \
+       GATE_MTK(_id, _name, _parent, &mm2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
+
+static const struct mtk_gate mm_clks[] = {
+       /* MM0 */
+       GATE_MM0(CLK_MM_DISP_MUTEX0, "mm_disp_mutex0", "disp_sel", 0),
+       GATE_MM0(CLK_MM_DISP_CONFIG, "mm_disp_config", "disp_sel", 1),
+       GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "disp_sel", 2),
+       GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "disp_sel", 3),
+       GATE_MM0(CLK_MM_DISP_OVL0_2L, "mm_disp_ovl0_2l", "disp_sel", 4),
+       GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "disp_sel", 5),
+       GATE_MM0(CLK_MM_DISP_UFBC_WDMA0, "mm_disp_ufbc_wdma0", "disp_sel", 6),
+       GATE_MM0(CLK_MM_DISP_RSZ0, "mm_disp_rsz0", "disp_sel", 7),
+       GATE_MM0(CLK_MM_DISP_AAL0, "mm_disp_aal0", "disp_sel", 8),
+       GATE_MM0(CLK_MM_DISP_CCORR0, "mm_disp_ccorr0", "disp_sel", 9),
+       GATE_MM0(CLK_MM_DISP_DITHER0, "mm_disp_dither0", "disp_sel", 10),
+       GATE_MM0(CLK_MM_SMI_INFRA, "mm_smi_infra", "disp_sel", 11),
+       GATE_MM0(CLK_MM_DISP_GAMMA0, "mm_disp_gamma0", "disp_sel", 12),
+       GATE_MM0(CLK_MM_DISP_POSTMASK0, "mm_disp_postmask0", "disp_sel", 13),
+       GATE_MM0(CLK_MM_DISP_DSC_WRAP0, "mm_disp_dsc_wrap0", "disp_sel", 14),
+       GATE_MM0(CLK_MM_DSI0, "mm_dsi0", "disp_sel", 15),
+       GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "disp_sel", 16),
+       GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "disp_sel", 17),
+       GATE_MM0(CLK_MM_DISP_FAKE_ENG0, "mm_disp_fake_eng0", "disp_sel", 18),
+       GATE_MM0(CLK_MM_DISP_FAKE_ENG1, "mm_disp_fake_eng1", "disp_sel", 19),
+       GATE_MM0(CLK_MM_MDP_TDSHP4, "mm_mdp_tdshp4", "disp_sel", 20),
+       GATE_MM0(CLK_MM_MDP_RSZ4, "mm_mdp_rsz4", "disp_sel", 21),
+       GATE_MM0(CLK_MM_MDP_AAL4, "mm_mdp_aal4", "disp_sel", 22),
+       GATE_MM0(CLK_MM_MDP_HDR4, "mm_mdp_hdr4", "disp_sel", 23),
+       GATE_MM0(CLK_MM_MDP_RDMA4, "mm_mdp_rdma4", "disp_sel", 24),
+       GATE_MM0(CLK_MM_MDP_COLOR4, "mm_mdp_color4", "disp_sel", 25),
+       GATE_MM0(CLK_MM_DISP_Y2R0, "mm_disp_y2r0", "disp_sel", 26),
+       GATE_MM0(CLK_MM_SMI_GALS, "mm_smi_gals", "disp_sel", 27),
+       GATE_MM0(CLK_MM_DISP_OVL2_2L, "mm_disp_ovl2_2l", "disp_sel", 28),
+       GATE_MM0(CLK_MM_DISP_RDMA4, "mm_disp_rdma4", "disp_sel", 29),
+       GATE_MM0(CLK_MM_DISP_DPI0, "mm_disp_dpi0", "disp_sel", 30),
+       /* MM1 */
+       GATE_MM1(CLK_MM_SMI_IOMMU, "mm_smi_iommu", "disp_sel", 0),
+       /* MM2 */
+       GATE_MM2(CLK_MM_DSI_DSI0, "mm_dsi_dsi0", "disp_sel", 0),
+       GATE_MM2(CLK_MM_DPI_DPI0, "mm_dpi_dpi0", "dpi_sel", 8),
+       GATE_MM2(CLK_MM_26MHZ, "mm_26mhz", "clk26m", 24),
+       GATE_MM2(CLK_MM_32KHZ, "mm_32khz", "clk32k", 25),
+};
+
+static int clk_mt8192_mm_probe(struct platform_device *pdev)
+{
+       struct device *dev = &pdev->dev;
+       struct device_node *node = dev->parent->of_node;
+       struct clk_onecell_data *clk_data;
+       int r;
+
+       clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
+       if (!clk_data)
+               return -ENOMEM;
+
+       r = mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), clk_data);
+       if (r)
+               return r;
+
+       return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static struct platform_driver clk_mt8192_mm_drv = {
+       .probe = clk_mt8192_mm_probe,
+       .driver = {
+               .name = "clk-mt8192-mm",
+       },
+};
+
+builtin_platform_driver(clk_mt8192_mm_drv);