Re: [PATCH 16/22] clk: mediatek: Add MT8195 vdosys1 clock support

[Chen-Yu Tsai <wenst@chromium.org>]

On Thu, Jun 17, 2021 at 7:03 AM Chun-Jie Chen
<chun-jie.chen@mediatek.com> wrote:
>
> Add MT8195 vdosys1 clock provider
>
> Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com>
> ---
>  drivers/clk/mediatek/Kconfig           |   6 ++
>  drivers/clk/mediatek/Makefile          |   1 +
>  drivers/clk/mediatek/clk-mt8195-vdo1.c | 131 +++++++++++++++++++++++++
>  3 files changed, 138 insertions(+)
>  create mode 100644 drivers/clk/mediatek/clk-mt8195-vdo1.c
>
> diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
> index 6602f9ba13c7..1e89c68f6c6c 100644
> --- a/drivers/clk/mediatek/Kconfig
> +++ b/drivers/clk/mediatek/Kconfig
> @@ -654,6 +654,12 @@ config COMMON_CLK_MT8195_VDOSYS0
>         help
>           This driver supports MediaTek MT8195 vdosys0 clocks.
>
> +config COMMON_CLK_MT8195_VDOSYS1
> +       bool "Clock driver for MediaTek MT8195 vdosys1"
> +       depends on COMMON_CLK_MT8195
> +       help
> +         This driver supports MediaTek MT8195 vdosys1 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 6aa1ba00342a..76c0fa837cb0 100644
> --- a/drivers/clk/mediatek/Makefile
> +++ b/drivers/clk/mediatek/Makefile
> @@ -92,5 +92,6 @@ obj-$(CONFIG_COMMON_CLK_MT8195_SCP_ADSP) += clk-mt8195-scp_adsp.o
>  obj-$(CONFIG_COMMON_CLK_MT8195_NNASYS) += clk-mt8195-nna.o
>  obj-$(CONFIG_COMMON_CLK_MT8195_VDECSYS) += clk-mt8195-vdec.o
>  obj-$(CONFIG_COMMON_CLK_MT8195_VDOSYS0) += clk-mt8195-vdo0.o
> +obj-$(CONFIG_COMMON_CLK_MT8195_VDOSYS1) += clk-mt8195-vdo1.o
>  obj-$(CONFIG_COMMON_CLK_MT8516) += clk-mt8516.o
>  obj-$(CONFIG_COMMON_CLK_MT8516_AUDSYS) += clk-mt8516-aud.o
> diff --git a/drivers/clk/mediatek/clk-mt8195-vdo1.c b/drivers/clk/mediatek/clk-mt8195-vdo1.c
> new file mode 100644
> index 000000000000..4d16f2e9c03a
> --- /dev/null
> +++ b/drivers/clk/mediatek/clk-mt8195-vdo1.c
> @@ -0,0 +1,131 @@
> +// 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/mt8195-clk.h>
> +
> +static const struct mtk_gate_regs vdo10_cg_regs = {

You might want to name these vdo1_X_cg_regs. This would be easier to read
and parse.

> +       .set_ofs = 0x104,
> +       .clr_ofs = 0x108,
> +       .sta_ofs = 0x100,
> +};
> +
> +static const struct mtk_gate_regs vdo11_cg_regs = {
> +       .set_ofs = 0x124,
> +       .clr_ofs = 0x128,
> +       .sta_ofs = 0x120,
> +};
> +
> +static const struct mtk_gate_regs vdo12_cg_regs = {
> +       .set_ofs = 0x134,
> +       .clr_ofs = 0x138,
> +       .sta_ofs = 0x130,
> +};
> +
> +static const struct mtk_gate_regs vdo13_cg_regs = {
> +       .set_ofs = 0x144,
> +       .clr_ofs = 0x148,
> +       .sta_ofs = 0x140,
> +};
> +
> +#define GATE_VDO10(_id, _name, _parent, _shift)                        \
> +       GATE_MTK(_id, _name, _parent, &vdo10_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
> +
> +#define GATE_VDO11(_id, _name, _parent, _shift)                        \
> +       GATE_MTK(_id, _name, _parent, &vdo11_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
> +
> +#define GATE_VDO12(_id, _name, _parent, _shift)                        \
> +       GATE_MTK(_id, _name, _parent, &vdo12_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
> +
> +#define GATE_VDO13(_id, _name, _parent, _shift)                        \
> +       GATE_MTK(_id, _name, _parent, &vdo13_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
> +
> +static const struct mtk_gate vdo1_clks[] = {
> +       /* VDO10 */
> +       GATE_VDO10(CLK_VDO1_SMI_LARB2, "vdo1_smi_larb2", "vpp_sel", 0),
> +       GATE_VDO10(CLK_VDO1_SMI_LARB3, "vdo1_smi_larb3", "vpp_sel", 1),
> +       GATE_VDO10(CLK_VDO1_GALS, "vdo1_gals", "vpp_sel", 2),
> +       GATE_VDO10(CLK_VDO1_FAKE_ENG0, "vdo1_fake_eng0", "vpp_sel", 3),
> +       GATE_VDO10(CLK_VDO1_FAKE_ENG, "vdo1_fake_eng", "vpp_sel", 4),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA0, "vdo1_mdp_rdma0", "vpp_sel", 5),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA1, "vdo1_mdp_rdma1", "vpp_sel", 6),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA2, "vdo1_mdp_rdma2", "vpp_sel", 7),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA3, "vdo1_mdp_rdma3", "vpp_sel", 8),
> +       GATE_VDO10(CLK_VDO1_VPP_MERGE0, "vdo1_vpp_merge0", "vpp_sel", 9),
> +       GATE_VDO10(CLK_VDO1_VPP_MERGE1, "vdo1_vpp_merge1", "vpp_sel", 10),
> +       GATE_VDO10(CLK_VDO1_VPP_MERGE2, "vdo1_vpp_merge2", "vpp_sel", 11),
> +       GATE_VDO10(CLK_VDO1_VPP_MERGE3, "vdo1_vpp_merge3", "vpp_sel", 12),
> +       GATE_VDO10(CLK_VDO1_VPP_MERGE4, "vdo1_vpp_merge4", "vpp_sel", 13),
> +       GATE_VDO10(CLK_VDO1_VPP2_TO_VDO1_DL_ASYNC, "vdo1_vpp2_to_vdo1_dl_async", "vpp_sel", 14),
> +       GATE_VDO10(CLK_VDO1_VPP3_TO_VDO1_DL_ASYNC, "vdo1_vpp3_to_vdo1_dl_async", "vpp_sel", 15),
> +       GATE_VDO10(CLK_VDO1_DISP_MUTEX, "vdo1_disp_mutex", "vpp_sel", 16),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA4, "vdo1_mdp_rdma4", "vpp_sel", 17),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA5, "vdo1_mdp_rdma5", "vpp_sel", 18),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA6, "vdo1_mdp_rdma6", "vpp_sel", 19),
> +       GATE_VDO10(CLK_VDO1_MDP_RDMA7, "vdo1_mdp_rdma7", "vpp_sel", 20),
> +       GATE_VDO10(CLK_VDO1_DP_INTF0_MM, "vdo1_dp_intf0_mm", "vpp_sel", 21),
> +       GATE_VDO10(CLK_VDO1_DPI0_MM, "vdo1_dpi0_mm", "vpp_sel", 22),
> +       GATE_VDO10(CLK_VDO1_DPI1_MM, "vdo1_dpi1_mm", "vpp_sel", 23),
> +       GATE_VDO10(CLK_VDO1_DISP_MONITOR, "vdo1_disp_monitor", "vpp_sel", 24),
> +       GATE_VDO10(CLK_VDO1_MERGE0_DL_ASYNC, "vdo1_merge0_dl_async", "vpp_sel", 25),
> +       GATE_VDO10(CLK_VDO1_MERGE1_DL_ASYNC, "vdo1_merge1_dl_async", "vpp_sel", 26),
> +       GATE_VDO10(CLK_VDO1_MERGE2_DL_ASYNC, "vdo1_merge2_dl_async", "vpp_sel", 27),
> +       GATE_VDO10(CLK_VDO1_MERGE3_DL_ASYNC, "vdo1_merge3_dl_async", "vpp_sel", 28),
> +       GATE_VDO10(CLK_VDO1_MERGE4_DL_ASYNC, "vdo1_merge4_dl_async", "vpp_sel", 29),
> +       GATE_VDO10(CLK_VDO1_VDO0_DSC_TO_VDO1_DL_ASYNC, "vdo1_vdo0_dsc_to_vdo1_dl_async",
> +               "vpp_sel", 30),
> +       GATE_VDO10(CLK_VDO1_VDO0_MERGE_TO_VDO1_DL_ASYNC, "vdo1_vdo0_merge_to_vdo1_dl_async",
> +               "vpp_sel", 31),
> +       /* VDO11 */
> +       GATE_VDO11(CLK_VDO1_HDR_VDO_FE0, "vdo1_hdr_vdo_fe0", "vpp_sel", 0),
> +       GATE_VDO11(CLK_VDO1_HDR_GFX_FE0, "vdo1_hdr_gfx_fe0", "vpp_sel", 1),
> +       GATE_VDO11(CLK_VDO1_HDR_VDO_BE, "vdo1_hdr_vdo_be", "vpp_sel", 2),
> +       GATE_VDO11(CLK_VDO1_HDR_VDO_FE1, "vdo1_hdr_vdo_fe1", "vpp_sel", 16),
> +       GATE_VDO11(CLK_VDO1_HDR_GFX_FE1, "vdo1_hdr_gfx_fe1", "vpp_sel", 17),
> +       GATE_VDO11(CLK_VDO1_DISP_MIXER, "vdo1_disp_mixer", "vpp_sel", 18),
> +       GATE_VDO11(CLK_VDO1_HDR_VDO_FE0_DL_ASYNC, "vdo1_hdr_vdo_fe0_dl_async", "vpp_sel", 19),
> +       GATE_VDO11(CLK_VDO1_HDR_VDO_FE1_DL_ASYNC, "vdo1_hdr_vdo_fe1_dl_async", "vpp_sel", 20),
> +       GATE_VDO11(CLK_VDO1_HDR_GFX_FE0_DL_ASYNC, "vdo1_hdr_gfx_fe0_dl_async", "vpp_sel", 21),
> +       GATE_VDO11(CLK_VDO1_HDR_GFX_FE1_DL_ASYNC, "vdo1_hdr_gfx_fe1_dl_async", "vpp_sel", 22),
> +       GATE_VDO11(CLK_VDO1_HDR_VDO_BE_DL_ASYNC, "vdo1_hdr_vdo_be_dl_async", "vpp_sel", 23),
> +       /* VDO12 */
> +       GATE_VDO12(CLK_VDO1_DPI0, "vdo1_dpi0", "vpp_sel", 0),
> +       GATE_VDO12(CLK_VDO1_DISP_MONITOR_DPI0, "vdo1_disp_monitor_dpi0", "vpp_sel", 1),
> +       GATE_VDO12(CLK_VDO1_DPI1, "vdo1_dpi1", "vpp_sel", 8),
> +       GATE_VDO12(CLK_VDO1_DISP_MONITOR_DPI1, "vdo1_disp_monitor_dpi1", "vpp_sel", 9),
> +       GATE_VDO12(CLK_VDO1_DPINTF, "vdo1_dpintf", "vpp_sel", 16),
> +       GATE_VDO12(CLK_VDO1_DISP_MONITOR_DPINTF, "vdo1_disp_monitor_dpintf", "vpp_sel", 17),
> +       /* VDO13 */
> +       GATE_VDO13(CLK_VDO1_26M_SLOW, "vdo1_26m_slow", "clk26m", 8),
> +};
> +
> +static const struct mtk_clk_desc vdo1_desc = {
> +       .clks = vdo1_clks,
> +       .num_clks = ARRAY_SIZE(vdo1_clks),
> +};
> +
> +static const struct of_device_id of_match_clk_mt8195_vdo1[] = {
> +       {
> +               .compatible = "mediatek,mt8195-vdosys1",
> +               .data = &vdo1_desc,
> +       }, {
> +               /* sentinel */
> +       }
> +};
> +
> +static struct platform_driver clk_mt8195_vdo1_drv = {
> +       .probe = mtk_clk_simple_probe,
> +       .driver = {
> +               .name = "clk-mt8195-vdo1",
> +               .of_match_table = of_match_clk_mt8195_vdo1,
> +       },
> +};
> +
> +builtin_platform_driver(clk_mt8195_vdo1_drv);

Same general comments as the previous patch applies. Code looks good
otherwise.

ChenYu