[to Stephen and Mike] On 03/03/2020 04:18, CK Hu wrote: > Hi, Matthias: > > On Thu, 2020-02-27 at 19:22 +0100, Matthias Brugger wrote: >> >> On 27/02/2020 19:21, Matthias Brugger wrote: >>> >>> >>> On 27/02/2020 19:08, Enric Balletbo i Serra wrote: >>>> From: Matthias Brugger <mbrugger@xxxxxxxx> >>>> >>>> There is no strong reason for this to use CLK_OF_DECLARE instead of >>>> being a platform driver. Plus, this driver provides clocks but also >>>> a shared register space for the mediatek-drm and the mediatek-mdp >>>> driver. So move to drivers/soc/mediatek as a platform driver. >>>> >>>> Signed-off-by: Matthias Brugger <mbrugger@xxxxxxxx> >>>> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx> >>>> --- >>> >>> regarding the merge strategy, I propose that CK takes it through his tree and >>> provides a stable branch in case I'll need to put some patches on top of the >>> drivers/soc part. >>> >> >> Sorry, that was meant for 4/5 not this patch. >> >>> Makes sense? > > There are many dependencies in this series, so I would like to apply > this series to a tree together. I think mmsys driver is major of this > series, and this series does not conflict with Mediatek DRM tree now, so > I would like to apply this series to soc tree. How do you think? > Works for me, I would need an Acked-by from the clock maintainers for 3/5 though. Regards, Matthias > Regards, > CK > >>> >>> Regards, >>> Matthias >>> >>>> >>>> Changes in v10: >>>> - Renamed to be generic mtk-mmsys >>>> - Add driver data support to be able to support diferent SoCs >>>> >>>> Changes in v9: >>>> - Move mmsys to drivers/soc/mediatek (CK) >>>> >>>> Changes in v8: >>>> - Be a builtin_platform_driver like other mediatek mmsys drivers. >>>> >>>> Changes in v7: >>>> - Free clk_data->clks as well >>>> - Get rid of private data structure >>>> >>>> drivers/clk/mediatek/clk-mt8173.c | 104 -------------------- >>>> drivers/soc/mediatek/Kconfig | 7 ++ >>>> drivers/soc/mediatek/Makefile | 1 + >>>> drivers/soc/mediatek/mtk-mmsys.c | 154 ++++++++++++++++++++++++++++++ >>>> 4 files changed, 162 insertions(+), 104 deletions(-) >>>> create mode 100644 drivers/soc/mediatek/mtk-mmsys.c >>>> >>>> diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c >>>> index 537a7f49b0f7..8f898ac476c0 100644 >>>> --- a/drivers/clk/mediatek/clk-mt8173.c >>>> +++ b/drivers/clk/mediatek/clk-mt8173.c >>>> @@ -753,93 +753,6 @@ static const struct mtk_gate img_clks[] __initconst = { >>>> GATE_IMG(CLK_IMG_FD, "img_fd", "mm_sel", 11), >>>> }; >>>> >>>> -static const struct mtk_gate_regs mm0_cg_regs __initconst = { >>>> - .set_ofs = 0x0104, >>>> - .clr_ofs = 0x0108, >>>> - .sta_ofs = 0x0100, >>>> -}; >>>> - >>>> -static const struct mtk_gate_regs mm1_cg_regs __initconst = { >>>> - .set_ofs = 0x0114, >>>> - .clr_ofs = 0x0118, >>>> - .sta_ofs = 0x0110, >>>> -}; >>>> - >>>> -#define GATE_MM0(_id, _name, _parent, _shift) { \ >>>> - .id = _id, \ >>>> - .name = _name, \ >>>> - .parent_name = _parent, \ >>>> - .regs = &mm0_cg_regs, \ >>>> - .shift = _shift, \ >>>> - .ops = &mtk_clk_gate_ops_setclr, \ >>>> - } >>>> - >>>> -#define GATE_MM1(_id, _name, _parent, _shift) { \ >>>> - .id = _id, \ >>>> - .name = _name, \ >>>> - .parent_name = _parent, \ >>>> - .regs = &mm1_cg_regs, \ >>>> - .shift = _shift, \ >>>> - .ops = &mtk_clk_gate_ops_setclr, \ >>>> - } >>>> - >>>> -static const struct mtk_gate mm_clks[] __initconst = { >>>> - /* MM0 */ >>>> - GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0), >>>> - GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1), >>>> - GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 2), >>>> - GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 3), >>>> - GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 4), >>>> - GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 5), >>>> - GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 6), >>>> - GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 7), >>>> - GATE_MM0(CLK_MM_MDP_TDSHP0, "mm_mdp_tdshp0", "mm_sel", 8), >>>> - GATE_MM0(CLK_MM_MDP_TDSHP1, "mm_mdp_tdshp1", "mm_sel", 9), >>>> - GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11), >>>> - GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12), >>>> - GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13), >>>> - GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14), >>>> - GATE_MM0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 15), >>>> - GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 16), >>>> - GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 17), >>>> - GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 18), >>>> - GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19), >>>> - GATE_MM0(CLK_MM_DISP_RDMA2, "mm_disp_rdma2", "mm_sel", 20), >>>> - GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21), >>>> - GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22), >>>> - GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 23), >>>> - GATE_MM0(CLK_MM_DISP_COLOR1, "mm_disp_color1", "mm_sel", 24), >>>> - GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25), >>>> - GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26), >>>> - GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 27), >>>> - GATE_MM0(CLK_MM_DISP_SPLIT0, "mm_disp_split0", "mm_sel", 28), >>>> - GATE_MM0(CLK_MM_DISP_SPLIT1, "mm_disp_split1", "mm_sel", 29), >>>> - GATE_MM0(CLK_MM_DISP_MERGE, "mm_disp_merge", "mm_sel", 30), >>>> - GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 31), >>>> - /* MM1 */ >>>> - GATE_MM1(CLK_MM_DISP_PWM0MM, "mm_disp_pwm0mm", "mm_sel", 0), >>>> - GATE_MM1(CLK_MM_DISP_PWM026M, "mm_disp_pwm026m", "pwm_sel", 1), >>>> - GATE_MM1(CLK_MM_DISP_PWM1MM, "mm_disp_pwm1mm", "mm_sel", 2), >>>> - GATE_MM1(CLK_MM_DISP_PWM126M, "mm_disp_pwm126m", "pwm_sel", 3), >>>> - GATE_MM1(CLK_MM_DSI0_ENGINE, "mm_dsi0_engine", "mm_sel", 4), >>>> - GATE_MM1(CLK_MM_DSI0_DIGITAL, "mm_dsi0_digital", "dsi0_dig", 5), >>>> - GATE_MM1(CLK_MM_DSI1_ENGINE, "mm_dsi1_engine", "mm_sel", 6), >>>> - GATE_MM1(CLK_MM_DSI1_DIGITAL, "mm_dsi1_digital", "dsi1_dig", 7), >>>> - GATE_MM1(CLK_MM_DPI_PIXEL, "mm_dpi_pixel", "dpi0_sel", 8), >>>> - GATE_MM1(CLK_MM_DPI_ENGINE, "mm_dpi_engine", "mm_sel", 9), >>>> - GATE_MM1(CLK_MM_DPI1_PIXEL, "mm_dpi1_pixel", "lvds_pxl", 10), >>>> - GATE_MM1(CLK_MM_DPI1_ENGINE, "mm_dpi1_engine", "mm_sel", 11), >>>> - GATE_MM1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi0_sel", 12), >>>> - GATE_MM1(CLK_MM_HDMI_PLLCK, "mm_hdmi_pllck", "hdmi_sel", 13), >>>> - GATE_MM1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll1", 14), >>>> - GATE_MM1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll2", 15), >>>> - GATE_MM1(CLK_MM_LVDS_PIXEL, "mm_lvds_pixel", "lvds_pxl", 16), >>>> - GATE_MM1(CLK_MM_LVDS_CTS, "mm_lvds_cts", "lvds_cts", 17), >>>> - GATE_MM1(CLK_MM_SMI_LARB4, "mm_smi_larb4", "mm_sel", 18), >>>> - GATE_MM1(CLK_MM_HDMI_HDCP, "mm_hdmi_hdcp", "hdcp_sel", 19), >>>> - GATE_MM1(CLK_MM_HDMI_HDCP24M, "mm_hdmi_hdcp24m", "hdcp_24m_sel", 20), >>>> -}; >>>> - >>>> static const struct mtk_gate_regs vdec0_cg_regs __initconst = { >>>> .set_ofs = 0x0000, >>>> .clr_ofs = 0x0004, >>>> @@ -1144,23 +1057,6 @@ static void __init mtk_imgsys_init(struct device_node *node) >>>> } >>>> CLK_OF_DECLARE(mtk_imgsys, "mediatek,mt8173-imgsys", mtk_imgsys_init); >>>> >>>> -static void __init mtk_mmsys_init(struct device_node *node) >>>> -{ >>>> - struct clk_onecell_data *clk_data; >>>> - int r; >>>> - >>>> - clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); >>>> - >>>> - mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), >>>> - clk_data); >>>> - >>>> - r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); >>>> - if (r) >>>> - pr_err("%s(): could not register clock provider: %d\n", >>>> - __func__, r); >>>> -} >>>> -CLK_OF_DECLARE(mtk_mmsys, "mediatek,mt8173-mmsys", mtk_mmsys_init); >>>> - >>>> static void __init mtk_vdecsys_init(struct device_node *node) >>>> { >>>> struct clk_onecell_data *clk_data; >>>> diff --git a/drivers/soc/mediatek/Kconfig b/drivers/soc/mediatek/Kconfig >>>> index 2114b563478c..7a156944d50e 100644 >>>> --- a/drivers/soc/mediatek/Kconfig >>>> +++ b/drivers/soc/mediatek/Kconfig >>>> @@ -44,4 +44,11 @@ config MTK_SCPSYS >>>> Say yes here to add support for the MediaTek SCPSYS power domain >>>> driver. >>>> >>>> +config MTK_MMSYS >>>> + bool "MediaTek MMSYS Support" >>>> + depends on COMMON_CLK_MT8173 >>>> + help >>>> + Say yes here to add support for the MediaTek Multimedia >>>> + Subsystem (MMSYS). >>>> + >>>> endmenu >>>> diff --git a/drivers/soc/mediatek/Makefile b/drivers/soc/mediatek/Makefile >>>> index b01733074ad6..01f9f873634a 100644 >>>> --- a/drivers/soc/mediatek/Makefile >>>> +++ b/drivers/soc/mediatek/Makefile >>>> @@ -3,3 +3,4 @@ obj-$(CONFIG_MTK_CMDQ) += mtk-cmdq-helper.o >>>> obj-$(CONFIG_MTK_INFRACFG) += mtk-infracfg.o >>>> obj-$(CONFIG_MTK_PMIC_WRAP) += mtk-pmic-wrap.o >>>> obj-$(CONFIG_MTK_SCPSYS) += mtk-scpsys.o >>>> +obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o >>>> diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c >>>> new file mode 100644 >>>> index 000000000000..473cdf732fb5 >>>> --- /dev/null >>>> +++ b/drivers/soc/mediatek/mtk-mmsys.c >>>> @@ -0,0 +1,154 @@ >>>> +// SPDX-License-Identifier: GPL-2.0-only >>>> +/* >>>> + * Copyright (c) 2014 MediaTek Inc. >>>> + * Author: James Liao <jamesjj.liao@xxxxxxxxxxxx> >>>> + */ >>>> + >>>> +#include <linux/clk-provider.h> >>>> +#include <linux/of_device.h> >>>> +#include <linux/platform_device.h> >>>> + >>>> +#include "../../clk/mediatek/clk-gate.h" >>>> +#include "../../clk/mediatek/clk-mtk.h" >>>> + >>>> +#include <dt-bindings/clock/mt8173-clk.h> >>>> + >>>> +static const struct mtk_gate_regs mm0_cg_regs = { >>>> + .set_ofs = 0x0104, >>>> + .clr_ofs = 0x0108, >>>> + .sta_ofs = 0x0100, >>>> +}; >>>> + >>>> +static const struct mtk_gate_regs mm1_cg_regs = { >>>> + .set_ofs = 0x0114, >>>> + .clr_ofs = 0x0118, >>>> + .sta_ofs = 0x0110, >>>> +}; >>>> + >>>> +#define GATE_MM0(_id, _name, _parent, _shift) { \ >>>> + .id = _id, \ >>>> + .name = _name, \ >>>> + .parent_name = _parent, \ >>>> + .regs = &mm0_cg_regs, \ >>>> + .shift = _shift, \ >>>> + .ops = &mtk_clk_gate_ops_setclr, \ >>>> + } >>>> + >>>> +#define GATE_MM1(_id, _name, _parent, _shift) { \ >>>> + .id = _id, \ >>>> + .name = _name, \ >>>> + .parent_name = _parent, \ >>>> + .regs = &mm1_cg_regs, \ >>>> + .shift = _shift, \ >>>> + .ops = &mtk_clk_gate_ops_setclr, \ >>>> + } >>>> + >>>> +static const struct mtk_gate mt8173_mm_clks[] = { >>>> + /* MM0 */ >>>> + GATE_MM0(CLK_MM_SMI_COMMON, "mm_smi_common", "mm_sel", 0), >>>> + GATE_MM0(CLK_MM_SMI_LARB0, "mm_smi_larb0", "mm_sel", 1), >>>> + GATE_MM0(CLK_MM_CAM_MDP, "mm_cam_mdp", "mm_sel", 2), >>>> + GATE_MM0(CLK_MM_MDP_RDMA0, "mm_mdp_rdma0", "mm_sel", 3), >>>> + GATE_MM0(CLK_MM_MDP_RDMA1, "mm_mdp_rdma1", "mm_sel", 4), >>>> + GATE_MM0(CLK_MM_MDP_RSZ0, "mm_mdp_rsz0", "mm_sel", 5), >>>> + GATE_MM0(CLK_MM_MDP_RSZ1, "mm_mdp_rsz1", "mm_sel", 6), >>>> + GATE_MM0(CLK_MM_MDP_RSZ2, "mm_mdp_rsz2", "mm_sel", 7), >>>> + GATE_MM0(CLK_MM_MDP_TDSHP0, "mm_mdp_tdshp0", "mm_sel", 8), >>>> + GATE_MM0(CLK_MM_MDP_TDSHP1, "mm_mdp_tdshp1", "mm_sel", 9), >>>> + GATE_MM0(CLK_MM_MDP_WDMA, "mm_mdp_wdma", "mm_sel", 11), >>>> + GATE_MM0(CLK_MM_MDP_WROT0, "mm_mdp_wrot0", "mm_sel", 12), >>>> + GATE_MM0(CLK_MM_MDP_WROT1, "mm_mdp_wrot1", "mm_sel", 13), >>>> + GATE_MM0(CLK_MM_FAKE_ENG, "mm_fake_eng", "mm_sel", 14), >>>> + GATE_MM0(CLK_MM_MUTEX_32K, "mm_mutex_32k", "rtc_sel", 15), >>>> + GATE_MM0(CLK_MM_DISP_OVL0, "mm_disp_ovl0", "mm_sel", 16), >>>> + GATE_MM0(CLK_MM_DISP_OVL1, "mm_disp_ovl1", "mm_sel", 17), >>>> + GATE_MM0(CLK_MM_DISP_RDMA0, "mm_disp_rdma0", "mm_sel", 18), >>>> + GATE_MM0(CLK_MM_DISP_RDMA1, "mm_disp_rdma1", "mm_sel", 19), >>>> + GATE_MM0(CLK_MM_DISP_RDMA2, "mm_disp_rdma2", "mm_sel", 20), >>>> + GATE_MM0(CLK_MM_DISP_WDMA0, "mm_disp_wdma0", "mm_sel", 21), >>>> + GATE_MM0(CLK_MM_DISP_WDMA1, "mm_disp_wdma1", "mm_sel", 22), >>>> + GATE_MM0(CLK_MM_DISP_COLOR0, "mm_disp_color0", "mm_sel", 23), >>>> + GATE_MM0(CLK_MM_DISP_COLOR1, "mm_disp_color1", "mm_sel", 24), >>>> + GATE_MM0(CLK_MM_DISP_AAL, "mm_disp_aal", "mm_sel", 25), >>>> + GATE_MM0(CLK_MM_DISP_GAMMA, "mm_disp_gamma", "mm_sel", 26), >>>> + GATE_MM0(CLK_MM_DISP_UFOE, "mm_disp_ufoe", "mm_sel", 27), >>>> + GATE_MM0(CLK_MM_DISP_SPLIT0, "mm_disp_split0", "mm_sel", 28), >>>> + GATE_MM0(CLK_MM_DISP_SPLIT1, "mm_disp_split1", "mm_sel", 29), >>>> + GATE_MM0(CLK_MM_DISP_MERGE, "mm_disp_merge", "mm_sel", 30), >>>> + GATE_MM0(CLK_MM_DISP_OD, "mm_disp_od", "mm_sel", 31), >>>> + /* MM1 */ >>>> + GATE_MM1(CLK_MM_DISP_PWM0MM, "mm_disp_pwm0mm", "mm_sel", 0), >>>> + GATE_MM1(CLK_MM_DISP_PWM026M, "mm_disp_pwm026m", "pwm_sel", 1), >>>> + GATE_MM1(CLK_MM_DISP_PWM1MM, "mm_disp_pwm1mm", "mm_sel", 2), >>>> + GATE_MM1(CLK_MM_DISP_PWM126M, "mm_disp_pwm126m", "pwm_sel", 3), >>>> + GATE_MM1(CLK_MM_DSI0_ENGINE, "mm_dsi0_engine", "mm_sel", 4), >>>> + GATE_MM1(CLK_MM_DSI0_DIGITAL, "mm_dsi0_digital", "dsi0_dig", 5), >>>> + GATE_MM1(CLK_MM_DSI1_ENGINE, "mm_dsi1_engine", "mm_sel", 6), >>>> + GATE_MM1(CLK_MM_DSI1_DIGITAL, "mm_dsi1_digital", "dsi1_dig", 7), >>>> + GATE_MM1(CLK_MM_DPI_PIXEL, "mm_dpi_pixel", "dpi0_sel", 8), >>>> + GATE_MM1(CLK_MM_DPI_ENGINE, "mm_dpi_engine", "mm_sel", 9), >>>> + GATE_MM1(CLK_MM_DPI1_PIXEL, "mm_dpi1_pixel", "lvds_pxl", 10), >>>> + GATE_MM1(CLK_MM_DPI1_ENGINE, "mm_dpi1_engine", "mm_sel", 11), >>>> + GATE_MM1(CLK_MM_HDMI_PIXEL, "mm_hdmi_pixel", "dpi0_sel", 12), >>>> + GATE_MM1(CLK_MM_HDMI_PLLCK, "mm_hdmi_pllck", "hdmi_sel", 13), >>>> + GATE_MM1(CLK_MM_HDMI_AUDIO, "mm_hdmi_audio", "apll1", 14), >>>> + GATE_MM1(CLK_MM_HDMI_SPDIF, "mm_hdmi_spdif", "apll2", 15), >>>> + GATE_MM1(CLK_MM_LVDS_PIXEL, "mm_lvds_pixel", "lvds_pxl", 16), >>>> + GATE_MM1(CLK_MM_LVDS_CTS, "mm_lvds_cts", "lvds_cts", 17), >>>> + GATE_MM1(CLK_MM_SMI_LARB4, "mm_smi_larb4", "mm_sel", 18), >>>> + GATE_MM1(CLK_MM_HDMI_HDCP, "mm_hdmi_hdcp", "hdcp_sel", 19), >>>> + GATE_MM1(CLK_MM_HDMI_HDCP24M, "mm_hdmi_hdcp24m", "hdcp_24m_sel", 20), >>>> +}; >>>> + >>>> +struct mtk_mmsys_driver_data { >>>> + const struct mtk_gate *gates_clk; >>>> + int gates_num; >>>> +}; >>>> + >>>> +static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { >>>> + .gates_clk = mt8173_mm_clks, >>>> + .gates_num = ARRAY_SIZE(mt8173_mm_clks), >>>> +}; >>>> + >>>> +static int mtk_mmsys_probe(struct platform_device *pdev) >>>> +{ >>>> + struct device_node *node = pdev->dev.of_node; >>>> + const struct mtk_mmsys_driver_data *data; >>>> + struct clk_onecell_data *clk_data; >>>> + int ret; >>>> + >>>> + clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK); >>>> + if (!clk_data) >>>> + return -ENOMEM; >>>> + >>>> + data = of_device_get_match_data(&pdev->dev); >>>> + >>>> + ret = mtk_clk_register_gates(node, data->gates_clk, data->gates_num, >>>> + clk_data); >>>> + if (ret) >>>> + return ret; >>>> + >>>> + ret = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); >>>> + if (ret) >>>> + return ret; >>>> + >>>> + return 0; >>>> +} >>>> + >>>> +static const struct of_device_id of_match_mtk_mmsys[] = { >>>> + { >>>> + .compatible = "mediatek,mt8173-mmsys", >>>> + .data = &mt8173_mmsys_driver_data, >>>> + }, >>>> + { } >>>> +}; >>>> + >>>> +static struct platform_driver mtk_mmsys_drv = { >>>> + .driver = { >>>> + .name = "mtk-mmsys", >>>> + .of_match_table = of_match_mtk_mmsys, >>>> + }, >>>> + .probe = mtk_mmsys_probe, >>>> +}; >>>> + >>>> +builtin_platform_driver(mtk_mmsys_drv); >>>> >