[PATCH v10 15/19] clk: mediatek: Add MT8192 mmsys clock support

Mon Jun 21 08:05:53 PDT 2021


On 16/06/2021 02:36, Chun-Jie Chen wrote:
> Add MT8192 mmsys clock provider
> 
> Signed-off-by: Weiyi Lu <weiyi.lu at mediatek.com>
> Signed-off-by: Chun-Jie Chen <chun-jie.chen at mediatek.com>

Reviewed-by: Matthias Brugger <matthias.bgg at gmail.com>

> ---
>  drivers/clk/mediatek/Kconfig         |   6 ++
>  drivers/clk/mediatek/Makefile        |   1 +
>  drivers/clk/mediatek/clk-mt8192-mm.c | 108 +++++++++++++++++++++++++++
>  3 files changed, 115 insertions(+)
>  create mode 100644 drivers/clk/mediatek/clk-mt8192-mm.c
> 
> diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
> index e212f3416855..5b89a4dbe2b9 100644
> --- 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 024841a79f1c..838bb0131c97 100644
> --- 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
> index 000000000000..4a0b4c4bc06a
> --- /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 at 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);
>