// SPDX-License-Identifier: GPL-2.0+ // // Copyright 2023 NXP // #include #include #include #include #include #include #include #include #include #include #include #include #include "clk.h" /** * struct clk_imx_acm_pm_domains - structure for multi power domain * @pd_dev: power domain device * @pd_dev_link: power domain device link * @num_domains: power domain nummber */ struct clk_imx_acm_pm_domains { struct device **pd_dev; struct device_link **pd_dev_link; int num_domains; }; /** * struct clk_imx8_acm_sel - for clock mux * @name: clock name * @clkid: clock id * @parents: clock parents * @num_parents: clock parents number * @reg: register offset * @shift: bit shift in register * @width: bits width */ struct clk_imx8_acm_sel { const char *name; int clkid; const struct clk_parent_data *parents; /* For mux */ int num_parents; u32 reg; u8 shift; u8 width; }; /** * struct imx8_acm_soc_data - soc specific data * @sels: pointer to struct clk_imx8_acm_sel * @num_sels: numbers of items * @mclk_sels: pointer to imx8qm/qxp/dxl_mclk_sels */ struct imx8_acm_soc_data { struct clk_imx8_acm_sel *sels; unsigned int num_sels; struct clk_parent_data *mclk_sels; }; /** * struct imx8_acm_priv - private structure * @dev_pm: multi power domain * @soc_data: pointer to soc data * @reg: base address of registers * @regs: save registers for suspend */ struct imx8_acm_priv { struct clk_imx_acm_pm_domains dev_pm; const struct imx8_acm_soc_data *soc_data; void __iomem *reg; u32 regs[IMX_ADMA_ACM_CLK_END]; }; static const struct clk_parent_data imx8qm_aud_clk_sels[] = { { .fw_name = "aud_rec_clk0_lpcg_clk" }, { .fw_name = "aud_rec_clk1_lpcg_clk" }, { .fw_name = "dummy" }, { .fw_name = "hdmi_rx_mclk" }, { .fw_name = "ext_aud_mclk0" }, { .fw_name = "ext_aud_mclk1" }, { .fw_name = "esai0_rx_clk" }, { .fw_name = "esai0_rx_hf_clk" }, { .fw_name = "esai0_tx_clk" }, { .fw_name = "esai0_tx_hf_clk" }, { .fw_name = "esai1_rx_clk" }, { .fw_name = "esai1_rx_hf_clk" }, { .fw_name = "esai1_tx_clk" }, { .fw_name = "esai1_tx_hf_clk" }, { .fw_name = "spdif0_rx" }, { .fw_name = "spdif1_rx" }, { .fw_name = "sai0_rx_bclk" }, { .fw_name = "sai0_tx_bclk" }, { .fw_name = "sai1_rx_bclk" }, { .fw_name = "sai1_tx_bclk" }, { .fw_name = "sai2_rx_bclk" }, { .fw_name = "sai3_rx_bclk" }, { .fw_name = "sai4_rx_bclk" }, }; static const struct clk_parent_data imx8qm_mclk_out_sels[] = { { .fw_name = "aud_rec_clk0_lpcg_clk" }, { .fw_name = "aud_rec_clk1_lpcg_clk" }, { .fw_name = "dummy" }, { .fw_name = "hdmi_rx_mclk" }, { .fw_name = "spdif0_rx" }, { .fw_name = "spdif1_rx" }, { .fw_name = "sai4_rx_bclk" }, { .fw_name = "sai6_rx_bclk" }, }; #define ACM_AUD_CLK0_SEL_INDEX 2 #define ACM_AUD_CLK1_SEL_INDEX 3 static struct clk_parent_data imx8qm_mclk_sels[] = { { .fw_name = "aud_pll_div_clk0_lpcg_clk" }, { .fw_name = "aud_pll_div_clk1_lpcg_clk" }, { }, /* clk_hw pointer of "acm_aud_clk0_sel" */ { }, /* clk_hw pointer of "acm_aud_clk1_sel" */ }; static const struct clk_parent_data imx8qm_asrc_mux_clk_sels[] = { { .fw_name = "sai4_rx_bclk" }, { .fw_name = "sai5_tx_bclk" }, { .index = -1 }, { .fw_name = "dummy" }, }; static struct clk_imx8_acm_sel imx8qm_sels[] = { { "acm_aud_clk0_sel", IMX_ADMA_ACM_AUD_CLK0_SEL, imx8qm_aud_clk_sels, ARRAY_SIZE(imx8qm_aud_clk_sels), 0x000000, 0, 5 }, { "acm_aud_clk1_sel", IMX_ADMA_ACM_AUD_CLK1_SEL, imx8qm_aud_clk_sels, ARRAY_SIZE(imx8qm_aud_clk_sels), 0x010000, 0, 5 }, { "acm_mclkout0_sel", IMX_ADMA_ACM_MCLKOUT0_SEL, imx8qm_mclk_out_sels, ARRAY_SIZE(imx8qm_mclk_out_sels), 0x020000, 0, 3 }, { "acm_mclkout1_sel", IMX_ADMA_ACM_MCLKOUT1_SEL, imx8qm_mclk_out_sels, ARRAY_SIZE(imx8qm_mclk_out_sels), 0x030000, 0, 3 }, { "acm_asrc0_mclk_sel", IMX_ADMA_ACM_ASRC0_MUX_CLK_SEL, imx8qm_asrc_mux_clk_sels, ARRAY_SIZE(imx8qm_asrc_mux_clk_sels), 0x040000, 0, 2 }, { "acm_esai0_mclk_sel", IMX_ADMA_ACM_ESAI0_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x060000, 0, 2 }, { "acm_esai1_mclk_sel", IMX_ADMA_ACM_ESAI1_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x070000, 0, 2 }, { "acm_sai0_mclk_sel", IMX_ADMA_ACM_SAI0_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x0E0000, 0, 2 }, { "acm_sai1_mclk_sel", IMX_ADMA_ACM_SAI1_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x0F0000, 0, 2 }, { "acm_sai2_mclk_sel", IMX_ADMA_ACM_SAI2_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x100000, 0, 2 }, { "acm_sai3_mclk_sel", IMX_ADMA_ACM_SAI3_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x110000, 0, 2 }, { "acm_sai4_mclk_sel", IMX_ADMA_ACM_SAI4_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x120000, 0, 2 }, { "acm_sai5_mclk_sel", IMX_ADMA_ACM_SAI5_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x130000, 0, 2 }, { "acm_sai6_mclk_sel", IMX_ADMA_ACM_SAI6_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x140000, 0, 2 }, { "acm_sai7_mclk_sel", IMX_ADMA_ACM_SAI7_MCLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x150000, 0, 2 }, { "acm_spdif0_mclk_sel", IMX_ADMA_ACM_SPDIF0_TX_CLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x1A0000, 0, 2 }, { "acm_spdif1_mclk_sel", IMX_ADMA_ACM_SPDIF1_TX_CLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x1B0000, 0, 2 }, { "acm_mqs_mclk_sel", IMX_ADMA_ACM_MQS_TX_CLK_SEL, imx8qm_mclk_sels, ARRAY_SIZE(imx8qm_mclk_sels), 0x1C0000, 0, 2 }, }; static const struct clk_parent_data imx8qxp_aud_clk_sels[] = { { .fw_name = "aud_rec_clk0_lpcg_clk" }, { .fw_name = "aud_rec_clk1_lpcg_clk" }, { .fw_name = "ext_aud_mclk0" }, { .fw_name = "ext_aud_mclk1" }, { .fw_name = "esai0_rx_clk" }, { .fw_name = "esai0_rx_hf_clk" }, { .fw_name = "esai0_tx_clk" }, { .fw_name = "esai0_tx_hf_clk" }, { .fw_name = "spdif0_rx" }, { .fw_name = "sai0_rx_bclk" }, { .fw_name = "sai0_tx_bclk" }, { .fw_name = "sai1_rx_bclk" }, { .fw_name = "sai1_tx_bclk" }, { .fw_name = "sai2_rx_bclk" }, { .fw_name = "sai3_rx_bclk" }, }; static const struct clk_parent_data imx8qxp_mclk_out_sels[] = { { .fw_name = "aud_rec_clk0_lpcg_clk" }, { .fw_name = "aud_rec_clk1_lpcg_clk" }, { .index = -1 }, { .index = -1 }, { .fw_name = "spdif0_rx" }, { .index = -1 }, { .index = -1 }, { .fw_name = "sai4_rx_bclk" }, }; static struct clk_parent_data imx8qxp_mclk_sels[] = { { .fw_name = "aud_pll_div_clk0_lpcg_clk" }, { .fw_name = "aud_pll_div_clk1_lpcg_clk" }, { }, /* clk_hw pointer of "acm_aud_clk0_sel" */ { }, /* clk_hw pointer of "acm_aud_clk1_sel" */ }; static struct clk_imx8_acm_sel imx8qxp_sels[] = { { "acm_aud_clk0_sel", IMX_ADMA_ACM_AUD_CLK0_SEL, imx8qxp_aud_clk_sels, ARRAY_SIZE(imx8qxp_aud_clk_sels), 0x000000, 0, 5 }, { "acm_aud_clk1_sel", IMX_ADMA_ACM_AUD_CLK1_SEL, imx8qxp_aud_clk_sels, ARRAY_SIZE(imx8qxp_aud_clk_sels), 0x010000, 0, 5 }, { "acm_mclkout0_sel", IMX_ADMA_ACM_MCLKOUT0_SEL, imx8qxp_mclk_out_sels, ARRAY_SIZE(imx8qxp_mclk_out_sels), 0x020000, 0, 3 }, { "acm_mclkout1_sel", IMX_ADMA_ACM_MCLKOUT1_SEL, imx8qxp_mclk_out_sels, ARRAY_SIZE(imx8qxp_mclk_out_sels), 0x030000, 0, 3 }, { "acm_esai0_mclk_sel", IMX_ADMA_ACM_ESAI0_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x060000, 0, 2 }, { "acm_sai0_mclk_sel", IMX_ADMA_ACM_SAI0_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x0E0000, 0, 2 }, { "acm_sai1_mclk_sel", IMX_ADMA_ACM_SAI1_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x0F0000, 0, 2 }, { "acm_sai2_mclk_sel", IMX_ADMA_ACM_SAI2_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x100000, 0, 2 }, { "acm_sai3_mclk_sel", IMX_ADMA_ACM_SAI3_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x110000, 0, 2 }, { "acm_sai4_mclk_sel", IMX_ADMA_ACM_SAI4_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x140000, 0, 2 }, { "acm_sai5_mclk_sel", IMX_ADMA_ACM_SAI5_MCLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x150000, 0, 2 }, { "acm_spdif0_mclk_sel", IMX_ADMA_ACM_SPDIF0_TX_CLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x1A0000, 0, 2 }, { "acm_mqs_mclk_sel", IMX_ADMA_ACM_MQS_TX_CLK_SEL, imx8qxp_mclk_sels, ARRAY_SIZE(imx8qxp_mclk_sels), 0x1C0000, 0, 2 }, }; static const struct clk_parent_data imx8dxl_aud_clk_sels[] = { { .fw_name = "aud_rec_clk0_lpcg_clk" }, { .fw_name = "aud_rec_clk1_lpcg_clk" }, { .fw_name = "ext_aud_mclk0" }, { .fw_name = "ext_aud_mclk1" }, { .index = -1 }, { .index = -1 }, { .index = -1 }, { .index = -1 }, { .fw_name = "spdif0_rx" }, { .fw_name = "sai0_rx_bclk" }, { .fw_name = "sai0_tx_bclk" }, { .fw_name = "sai1_rx_bclk" }, { .fw_name = "sai1_tx_bclk" }, { .fw_name = "sai2_rx_bclk" }, { .fw_name = "sai3_rx_bclk" }, }; static const struct clk_parent_data imx8dxl_mclk_out_sels[] = { { .fw_name = "aud_rec_clk0_lpcg_clk" }, { .fw_name = "aud_rec_clk1_lpcg_clk" }, { .index = -1 }, { .index = -1 }, { .fw_name = "spdif0_rx" }, { .index = -1 }, { .index = -1 }, { .index = -1 }, }; static struct clk_parent_data imx8dxl_mclk_sels[] = { { .fw_name = "aud_pll_div_clk0_lpcg_clk" }, { .fw_name = "aud_pll_div_clk1_lpcg_clk" }, { }, /* clk_hw pointer of "acm_aud_clk0_sel" */ { }, /* clk_hw pointer of "acm_aud_clk1_sel" */ }; static struct clk_imx8_acm_sel imx8dxl_sels[] = { { "acm_aud_clk0_sel", IMX_ADMA_ACM_AUD_CLK0_SEL, imx8dxl_aud_clk_sels, ARRAY_SIZE(imx8dxl_aud_clk_sels), 0x000000, 0, 5 }, { "acm_aud_clk1_sel", IMX_ADMA_ACM_AUD_CLK1_SEL, imx8dxl_aud_clk_sels, ARRAY_SIZE(imx8dxl_aud_clk_sels), 0x010000, 0, 5 }, { "acm_mclkout0_sel", IMX_ADMA_ACM_MCLKOUT0_SEL, imx8dxl_mclk_out_sels, ARRAY_SIZE(imx8dxl_mclk_out_sels), 0x020000, 0, 3 }, { "acm_mclkout1_sel", IMX_ADMA_ACM_MCLKOUT1_SEL, imx8dxl_mclk_out_sels, ARRAY_SIZE(imx8dxl_mclk_out_sels), 0x030000, 0, 3 }, { "acm_sai0_mclk_sel", IMX_ADMA_ACM_SAI0_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x0E0000, 0, 2 }, { "acm_sai1_mclk_sel", IMX_ADMA_ACM_SAI1_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x0F0000, 0, 2 }, { "acm_sai2_mclk_sel", IMX_ADMA_ACM_SAI2_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x100000, 0, 2 }, { "acm_sai3_mclk_sel", IMX_ADMA_ACM_SAI3_MCLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x110000, 0, 2 }, { "acm_spdif0_mclk_sel", IMX_ADMA_ACM_SPDIF0_TX_CLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x1A0000, 0, 2 }, { "acm_mqs_mclk_sel", IMX_ADMA_ACM_MQS_TX_CLK_SEL, imx8dxl_mclk_sels, ARRAY_SIZE(imx8dxl_mclk_sels), 0x1C0000, 0, 2 }, }; /** * clk_imx_acm_attach_pm_domains: attach multi power domains * @dev: device pointer * @dev_pm: power domains for device */ static int clk_imx_acm_attach_pm_domains(struct device *dev, struct clk_imx_acm_pm_domains *dev_pm) { int ret; int i; dev_pm->num_domains = of_count_phandle_with_args(dev->of_node, "power-domains", "#power-domain-cells"); if (dev_pm->num_domains <= 1) return 0; dev_pm->pd_dev = devm_kmalloc_array(dev, dev_pm->num_domains, sizeof(*dev_pm->pd_dev), GFP_KERNEL); if (!dev_pm->pd_dev) return -ENOMEM; dev_pm->pd_dev_link = devm_kmalloc_array(dev, dev_pm->num_domains, sizeof(*dev_pm->pd_dev_link), GFP_KERNEL); if (!dev_pm->pd_dev_link) return -ENOMEM; for (i = 0; i < dev_pm->num_domains; i++) { dev_pm->pd_dev[i] = dev_pm_domain_attach_by_id(dev, i); if (IS_ERR(dev_pm->pd_dev[i])) { ret = PTR_ERR(dev_pm->pd_dev[i]); goto detach_pm; } dev_pm->pd_dev_link[i] = device_link_add(dev, dev_pm->pd_dev[i], DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE); if (IS_ERR(dev_pm->pd_dev_link[i])) { dev_pm_domain_detach(dev_pm->pd_dev[i], false); ret = PTR_ERR(dev_pm->pd_dev_link[i]); goto detach_pm; } } return 0; detach_pm: while (--i >= 0) { device_link_del(dev_pm->pd_dev_link[i]); dev_pm_domain_detach(dev_pm->pd_dev[i], false); } return ret; } /** * clk_imx_acm_detach_pm_domains: detach multi power domains * @dev: deivice pointer * @dev_pm: multi power domain for device */ static void clk_imx_acm_detach_pm_domains(struct device *dev, struct clk_imx_acm_pm_domains *dev_pm) { int i; if (dev_pm->num_domains <= 1) return; for (i = 0; i < dev_pm->num_domains; i++) { device_link_del(dev_pm->pd_dev_link[i]); dev_pm_domain_detach(dev_pm->pd_dev[i], false); } } static int imx8_acm_clk_probe(struct platform_device *pdev) { struct clk_hw_onecell_data *clk_hw_data; struct device *dev = &pdev->dev; struct clk_imx8_acm_sel *sels; struct imx8_acm_priv *priv; struct clk_hw **hws; void __iomem *base; int ret; int i; base = devm_of_iomap(dev, dev->of_node, 0, NULL); if (WARN_ON(IS_ERR(base))) return PTR_ERR(base); priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; priv->reg = base; priv->soc_data = of_device_get_match_data(dev); platform_set_drvdata(pdev, priv); clk_hw_data = devm_kzalloc(&pdev->dev, struct_size(clk_hw_data, hws, IMX_ADMA_ACM_CLK_END), GFP_KERNEL); if (!clk_hw_data) return -ENOMEM; clk_hw_data->num = IMX_ADMA_ACM_CLK_END; hws = clk_hw_data->hws; ret = clk_imx_acm_attach_pm_domains(&pdev->dev, &priv->dev_pm); if (ret) return ret; pm_runtime_enable(&pdev->dev); pm_runtime_get_sync(&pdev->dev); sels = priv->soc_data->sels; for (i = 0; i < priv->soc_data->num_sels; i++) { hws[sels[i].clkid] = devm_clk_hw_register_mux_parent_data_table(dev, sels[i].name, sels[i].parents, sels[i].num_parents, 0, base + sels[i].reg, sels[i].shift, sels[i].width, 0, NULL, NULL); if (IS_ERR(hws[sels[i].clkid])) { ret = PTR_ERR(hws[sels[i].clkid]); imx_check_clk_hws(hws, IMX_ADMA_ACM_CLK_END); goto err_clk_register; } /* * The IMX_ADMA_ACM_AUD_CLK0_SEL and IMX_ADMA_ACM_AUD_CLK1_SEL are * registered first. After registration, update the clk_hw pointer * to imx8qm/qxp/dxl_mclk_sels structures. */ if (sels[i].clkid == IMX_ADMA_ACM_AUD_CLK0_SEL) priv->soc_data->mclk_sels[ACM_AUD_CLK0_SEL_INDEX].hw = hws[IMX_ADMA_ACM_AUD_CLK0_SEL]; if (sels[i].clkid == IMX_ADMA_ACM_AUD_CLK1_SEL) priv->soc_data->mclk_sels[ACM_AUD_CLK1_SEL_INDEX].hw = hws[IMX_ADMA_ACM_AUD_CLK1_SEL]; } ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, clk_hw_data); if (ret < 0) { dev_err(dev, "failed to register hws for ACM\n"); goto err_clk_register; } pm_runtime_put_sync(&pdev->dev); return 0; err_clk_register: pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); clk_imx_acm_detach_pm_domains(&pdev->dev, &priv->dev_pm); return ret; } static void imx8_acm_clk_remove(struct platform_device *pdev) { struct imx8_acm_priv *priv = dev_get_drvdata(&pdev->dev); pm_runtime_disable(&pdev->dev); clk_imx_acm_detach_pm_domains(&pdev->dev, &priv->dev_pm); } static const struct imx8_acm_soc_data imx8qm_acm_data = { .sels = imx8qm_sels, .num_sels = ARRAY_SIZE(imx8qm_sels), .mclk_sels = imx8qm_mclk_sels, }; static const struct imx8_acm_soc_data imx8qxp_acm_data = { .sels = imx8qxp_sels, .num_sels = ARRAY_SIZE(imx8qxp_sels), .mclk_sels = imx8qxp_mclk_sels, }; static const struct imx8_acm_soc_data imx8dxl_acm_data = { .sels = imx8dxl_sels, .num_sels = ARRAY_SIZE(imx8dxl_sels), .mclk_sels = imx8dxl_mclk_sels, }; static const struct of_device_id imx8_acm_match[] = { { .compatible = "fsl,imx8qm-acm", .data = &imx8qm_acm_data }, { .compatible = "fsl,imx8qxp-acm", .data = &imx8qxp_acm_data }, { .compatible = "fsl,imx8dxl-acm", .data = &imx8dxl_acm_data }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx8_acm_match); static int __maybe_unused imx8_acm_runtime_suspend(struct device *dev) { struct imx8_acm_priv *priv = dev_get_drvdata(dev); struct clk_imx8_acm_sel *sels; int i; sels = priv->soc_data->sels; for (i = 0; i < priv->soc_data->num_sels; i++) priv->regs[i] = readl_relaxed(priv->reg + sels[i].reg); return 0; } static int __maybe_unused imx8_acm_runtime_resume(struct device *dev) { struct imx8_acm_priv *priv = dev_get_drvdata(dev); struct clk_imx8_acm_sel *sels; int i; sels = priv->soc_data->sels; for (i = 0; i < priv->soc_data->num_sels; i++) writel_relaxed(priv->regs[i], priv->reg + sels[i].reg); return 0; } static const struct dev_pm_ops imx8_acm_pm_ops = { SET_RUNTIME_PM_OPS(imx8_acm_runtime_suspend, imx8_acm_runtime_resume, NULL) SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) }; static struct platform_driver imx8_acm_clk_driver = { .driver = { .name = "imx8-acm", .of_match_table = imx8_acm_match, .pm = &imx8_acm_pm_ops, }, .probe = imx8_acm_clk_probe, .remove = imx8_acm_clk_remove, }; module_platform_driver(imx8_acm_clk_driver); MODULE_AUTHOR("Shengjiu Wang "); MODULE_DESCRIPTION("Freescale i.MX8 Audio Clock Mux driver"); MODULE_LICENSE("GPL");