// SPDX-License-Identifier: GPL-2.0 /* * DMA support for Internal DMAC with SDHI SD/SDIO controller * * Copyright (C) 2016-19 Renesas Electronics Corporation * Copyright (C) 2016-17 Horms Solutions, Simon Horman * Copyright (C) 2018-19 Sang Engineering, Wolfram Sang */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "renesas_sdhi.h" #include "tmio_mmc.h" #define DM_CM_DTRAN_MODE 0x820 #define DM_CM_DTRAN_CTRL 0x828 #define DM_CM_RST 0x830 #define DM_CM_INFO1 0x840 #define DM_CM_INFO1_MASK 0x848 #define DM_CM_INFO2 0x850 #define DM_CM_INFO2_MASK 0x858 #define DM_DTRAN_ADDR 0x880 /* DM_CM_DTRAN_MODE */ #define DTRAN_MODE_CH_NUM_CH0 0 /* "downstream" = for write commands */ #define DTRAN_MODE_CH_NUM_CH1 BIT(16) /* "upstream" = for read commands */ #define DTRAN_MODE_BUS_WIDTH (BIT(5) | BIT(4)) #define DTRAN_MODE_ADDR_MODE BIT(0) /* 1 = Increment address, 0 = Fixed */ /* DM_CM_DTRAN_CTRL */ #define DTRAN_CTRL_DM_START BIT(0) /* DM_CM_RST */ #define RST_DTRANRST1 BIT(9) #define RST_DTRANRST0 BIT(8) #define RST_RESERVED_BITS GENMASK_ULL(31, 0) /* DM_CM_INFO1 and DM_CM_INFO1_MASK */ #define INFO1_MASK_CLEAR GENMASK_ULL(31, 0) #define INFO1_DTRANEND1 BIT(20) #define INFO1_DTRANEND1_OLD BIT(17) #define INFO1_DTRANEND0 BIT(16) /* DM_CM_INFO2 and DM_CM_INFO2_MASK */ #define INFO2_MASK_CLEAR GENMASK_ULL(31, 0) #define INFO2_DTRANERR1 BIT(17) #define INFO2_DTRANERR0 BIT(16) enum renesas_sdhi_dma_cookie { COOKIE_UNMAPPED, COOKIE_PRE_MAPPED, COOKIE_MAPPED, }; /* * Specification of this driver: * - host->chan_{rx,tx} will be used as a flag of enabling/disabling the dma * - Since this SDHI DMAC register set has 16 but 32-bit width, we * need a custom accessor. */ static unsigned long global_flags; /* * Workaround for avoiding to use RX DMAC by multiple channels. On R-Car M3-W * ES1.0, when multiple SDHI channels use RX DMAC simultaneously, sometimes * hundreds of data bytes are not stored into the system memory even if the * DMAC interrupt happened. So, this driver then uses one RX DMAC channel only. */ #define SDHI_INTERNAL_DMAC_RX_IN_USE 0 /* Definitions for sampling clocks */ static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = { { .clk_rate = 0, .tap = 0x00000300, .tap_hs400_4tap = 0x00000100, }, }; static const struct renesas_sdhi_of_data of_data_rza2 = { .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL | TMIO_MMC_HAVE_CBSY, .tmio_ocr_mask = MMC_VDD_32_33, .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ | MMC_CAP_CMD23 | MMC_CAP_WAIT_WHILE_BUSY, .bus_shift = 2, .scc_offset = 0 - 0x1000, .taps = rcar_gen3_scc_taps, .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps), /* DMAC can handle 32bit blk count but only 1 segment */ .max_blk_count = UINT_MAX / TMIO_MAX_BLK_SIZE, .max_segs = 1, }; static const struct renesas_sdhi_of_data of_data_rcar_gen3 = { .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL | TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2, .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ | MMC_CAP_CMD23 | MMC_CAP_WAIT_WHILE_BUSY, .capabilities2 = MMC_CAP2_NO_WRITE_PROTECT | MMC_CAP2_MERGE_CAPABLE, .bus_shift = 2, .scc_offset = 0x1000, .taps = rcar_gen3_scc_taps, .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps), /* DMAC can handle 32bit blk count but only 1 segment */ .max_blk_count = UINT_MAX / TMIO_MAX_BLK_SIZE, .max_segs = 1, .sdhi_flags = SDHI_FLAG_NEED_CLKH_FALLBACK, }; static const struct renesas_sdhi_of_data of_data_rcar_gen3_no_sdh_fallback = { .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL | TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2, .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ | MMC_CAP_CMD23 | MMC_CAP_WAIT_WHILE_BUSY, .capabilities2 = MMC_CAP2_NO_WRITE_PROTECT | MMC_CAP2_MERGE_CAPABLE, .bus_shift = 2, .scc_offset = 0x1000, .taps = rcar_gen3_scc_taps, .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps), /* DMAC can handle 32bit blk count but only 1 segment */ .max_blk_count = UINT_MAX / TMIO_MAX_BLK_SIZE, .max_segs = 1, }; static const u8 r8a7796_es13_calib_table[2][SDHI_CALIB_TABLE_MAX] = { { 3, 3, 3, 3, 3, 3, 3, 4, 4, 5, 6, 7, 8, 9, 10, 15, 16, 16, 16, 16, 16, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25 }, { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 7, 8, 11, 12, 17, 18, 18, 18, 18, 18, 18, 18, 19, 20, 21, 22, 23, 25, 25 } }; static const u8 r8a77965_calib_table[2][SDHI_CALIB_TABLE_MAX] = { { 1, 2, 6, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 15, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 25, 26, 27, 28, 29, 30, 31 }, { 2, 3, 4, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 17, 17, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 31, 31, 31 } }; static const u8 r8a77990_calib_table[2][SDHI_CALIB_TABLE_MAX] = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 1, 2, 3, 3, 4, 4, 4, 5, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 17, 17, 18, 18, 19, 20, 22, 24, 25, 26, 26 } }; static const struct renesas_sdhi_quirks sdhi_quirks_4tap_nohs400 = { .hs400_disabled = true, .hs400_4taps = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_4tap_nohs400_one_rx = { .hs400_disabled = true, .hs400_4taps = true, .dma_one_rx_only = true, .old_info1_layout = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_4tap = { .hs400_4taps = true, .hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7), .manual_tap_correction = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_nohs400 = { .hs400_disabled = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_fixed_addr = { .fixed_addr_mode = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_bad_taps1357 = { .hs400_bad_taps = BIT(1) | BIT(3) | BIT(5) | BIT(7), .manual_tap_correction = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_bad_taps2367 = { .hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7), .manual_tap_correction = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_r8a7796_es13 = { .hs400_4taps = true, .hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7), .hs400_calib_table = r8a7796_es13_calib_table, .manual_tap_correction = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_r8a77965 = { .hs400_bad_taps = BIT(2) | BIT(3) | BIT(6) | BIT(7), .hs400_calib_table = r8a77965_calib_table, .manual_tap_correction = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_r8a77990 = { .hs400_calib_table = r8a77990_calib_table, .manual_tap_correction = true, }; static const struct renesas_sdhi_quirks sdhi_quirks_rzg2l = { .fixed_addr_mode = true, .hs400_disabled = true, }; /* * Note for r8a7796 / r8a774a1: we can't distinguish ES1.1 and 1.2 as of now. * So, we want to treat them equally and only have a match for ES1.2 to enforce * this if there ever will be a way to distinguish ES1.2. */ static const struct soc_device_attribute sdhi_quirks_match[] = { { .soc_id = "r8a774a1", .revision = "ES1.[012]", .data = &sdhi_quirks_4tap_nohs400 }, { .soc_id = "r8a7795", .revision = "ES2.0", .data = &sdhi_quirks_4tap }, { .soc_id = "r8a7796", .revision = "ES1.0", .data = &sdhi_quirks_4tap_nohs400_one_rx }, { .soc_id = "r8a7796", .revision = "ES1.[12]", .data = &sdhi_quirks_4tap_nohs400 }, { .soc_id = "r8a7796", .revision = "ES1.*", .data = &sdhi_quirks_r8a7796_es13 }, { .soc_id = "r8a77980", .revision = "ES1.*", .data = &sdhi_quirks_nohs400 }, { /* Sentinel. */ } }; static const struct renesas_sdhi_of_data_with_quirks of_r8a7795_compatible = { .of_data = &of_data_rcar_gen3, .quirks = &sdhi_quirks_bad_taps2367, }; static const struct renesas_sdhi_of_data_with_quirks of_r8a77961_compatible = { .of_data = &of_data_rcar_gen3, .quirks = &sdhi_quirks_bad_taps1357, }; static const struct renesas_sdhi_of_data_with_quirks of_r8a77965_compatible = { .of_data = &of_data_rcar_gen3, .quirks = &sdhi_quirks_r8a77965, }; static const struct renesas_sdhi_of_data_with_quirks of_r8a77970_compatible = { .of_data = &of_data_rcar_gen3_no_sdh_fallback, .quirks = &sdhi_quirks_nohs400, }; static const struct renesas_sdhi_of_data_with_quirks of_r8a77990_compatible = { .of_data = &of_data_rcar_gen3, .quirks = &sdhi_quirks_r8a77990, }; static const struct renesas_sdhi_of_data_with_quirks of_rzg2l_compatible = { .of_data = &of_data_rcar_gen3, .quirks = &sdhi_quirks_rzg2l, }; static const struct renesas_sdhi_of_data_with_quirks of_rcar_gen3_compatible = { .of_data = &of_data_rcar_gen3, }; static const struct renesas_sdhi_of_data_with_quirks of_rcar_gen3_nohs400_compatible = { .of_data = &of_data_rcar_gen3, .quirks = &sdhi_quirks_nohs400, }; static const struct renesas_sdhi_of_data_with_quirks of_rza2_compatible = { .of_data = &of_data_rza2, .quirks = &sdhi_quirks_fixed_addr, }; static const struct of_device_id renesas_sdhi_internal_dmac_of_match[] = { { .compatible = "renesas,sdhi-r7s9210", .data = &of_rza2_compatible, }, { .compatible = "renesas,sdhi-mmc-r8a77470", .data = &of_rcar_gen3_compatible, }, { .compatible = "renesas,sdhi-r8a7795", .data = &of_r8a7795_compatible, }, { .compatible = "renesas,sdhi-r8a77961", .data = &of_r8a77961_compatible, }, { .compatible = "renesas,sdhi-r8a77965", .data = &of_r8a77965_compatible, }, { .compatible = "renesas,sdhi-r8a77970", .data = &of_r8a77970_compatible, }, { .compatible = "renesas,sdhi-r8a77990", .data = &of_r8a77990_compatible, }, { .compatible = "renesas,sdhi-r8a77995", .data = &of_rcar_gen3_nohs400_compatible, }, { .compatible = "renesas,sdhi-r9a09g011", .data = &of_rzg2l_compatible, }, { .compatible = "renesas,rzg2l-sdhi", .data = &of_rzg2l_compatible, }, { .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, }, { .compatible = "renesas,rcar-gen4-sdhi", .data = &of_rcar_gen3_compatible, }, {}, }; MODULE_DEVICE_TABLE(of, renesas_sdhi_internal_dmac_of_match); static void renesas_sdhi_internal_dmac_enable_dma(struct tmio_mmc_host *host, bool enable) { struct renesas_sdhi *priv = host_to_priv(host); u32 dma_irqs = INFO1_DTRANEND0 | (sdhi_has_quirk(priv, old_info1_layout) ? INFO1_DTRANEND1_OLD : INFO1_DTRANEND1); if (!host->chan_tx || !host->chan_rx) return; writel(enable ? ~dma_irqs : INFO1_MASK_CLEAR, host->ctl + DM_CM_INFO1_MASK); if (priv->dma_priv.enable) priv->dma_priv.enable(host, enable); } static void renesas_sdhi_internal_dmac_abort_dma(struct tmio_mmc_host *host) { u64 val = RST_DTRANRST1 | RST_DTRANRST0; renesas_sdhi_internal_dmac_enable_dma(host, false); writel(RST_RESERVED_BITS & ~val, host->ctl + DM_CM_RST); writel(RST_RESERVED_BITS | val, host->ctl + DM_CM_RST); clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags); renesas_sdhi_internal_dmac_enable_dma(host, true); } static bool renesas_sdhi_internal_dmac_dma_irq(struct tmio_mmc_host *host) { struct renesas_sdhi *priv = host_to_priv(host); struct renesas_sdhi_dma *dma_priv = &priv->dma_priv; u32 dma_irqs = INFO1_DTRANEND0 | (sdhi_has_quirk(priv, old_info1_layout) ? INFO1_DTRANEND1_OLD : INFO1_DTRANEND1); u32 status = readl(host->ctl + DM_CM_INFO1); if (status & dma_irqs) { writel(status ^ dma_irqs, host->ctl + DM_CM_INFO1); set_bit(SDHI_DMA_END_FLAG_DMA, &dma_priv->end_flags); if (test_bit(SDHI_DMA_END_FLAG_ACCESS, &dma_priv->end_flags)) queue_work(system_bh_wq, &dma_priv->dma_complete); } return status & dma_irqs; } static void renesas_sdhi_internal_dmac_dataend_dma(struct tmio_mmc_host *host) { struct renesas_sdhi *priv = host_to_priv(host); struct renesas_sdhi_dma *dma_priv = &priv->dma_priv; set_bit(SDHI_DMA_END_FLAG_ACCESS, &dma_priv->end_flags); if (test_bit(SDHI_DMA_END_FLAG_DMA, &dma_priv->end_flags) || host->data->error) queue_work(system_bh_wq, &dma_priv->dma_complete); } /* * renesas_sdhi_internal_dmac_map() will be called with two different * sg pointers in two mmc_data by .pre_req(), but tmio host can have a single * sg_ptr only. So, renesas_sdhi_internal_dmac_{un}map() should use a sg * pointer in a mmc_data instead of host->sg_ptr. */ static void renesas_sdhi_internal_dmac_unmap(struct tmio_mmc_host *host, struct mmc_data *data, enum renesas_sdhi_dma_cookie cookie) { bool unmap = cookie == COOKIE_UNMAPPED ? (data->host_cookie != cookie) : (data->host_cookie == cookie); if (unmap) { dma_unmap_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data)); data->host_cookie = COOKIE_UNMAPPED; } } static bool renesas_sdhi_internal_dmac_map(struct tmio_mmc_host *host, struct mmc_data *data, enum renesas_sdhi_dma_cookie cookie) { if (data->host_cookie == COOKIE_PRE_MAPPED) return true; if (!dma_map_sg(&host->pdev->dev, data->sg, data->sg_len, mmc_get_dma_dir(data))) return false; data->host_cookie = cookie; /* This DMAC needs buffers to be 128-byte aligned */ if (!IS_ALIGNED(sg_dma_address(data->sg), 128)) { renesas_sdhi_internal_dmac_unmap(host, data, cookie); return false; } return true; } static void renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host, struct mmc_data *data) { struct renesas_sdhi *priv = host_to_priv(host); struct scatterlist *sg = host->sg_ptr; u32 dtran_mode = DTRAN_MODE_BUS_WIDTH; if (!sdhi_has_quirk(priv, fixed_addr_mode)) dtran_mode |= DTRAN_MODE_ADDR_MODE; if (!renesas_sdhi_internal_dmac_map(host, data, COOKIE_MAPPED)) goto force_pio; if (data->flags & MMC_DATA_READ) { dtran_mode |= DTRAN_MODE_CH_NUM_CH1; if (sdhi_has_quirk(priv, dma_one_rx_only) && test_and_set_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags)) goto force_pio_with_unmap; } else { dtran_mode |= DTRAN_MODE_CH_NUM_CH0; } priv->dma_priv.end_flags = 0; renesas_sdhi_internal_dmac_enable_dma(host, true); /* set dma parameters */ writel(dtran_mode, host->ctl + DM_CM_DTRAN_MODE); writel(sg_dma_address(sg), host->ctl + DM_DTRAN_ADDR); host->dma_on = true; return; force_pio_with_unmap: renesas_sdhi_internal_dmac_unmap(host, data, COOKIE_UNMAPPED); force_pio: renesas_sdhi_internal_dmac_enable_dma(host, false); } static void renesas_sdhi_internal_dmac_issue_work_fn(struct work_struct *work) { struct tmio_mmc_host *host = from_work(host, work, dma_issue); struct renesas_sdhi *priv = host_to_priv(host); tmio_mmc_enable_mmc_irqs(host, TMIO_STAT_DATAEND); if (!host->cmd->error) { /* start the DMAC */ writel(DTRAN_CTRL_DM_START, host->ctl + DM_CM_DTRAN_CTRL); } else { /* on CMD errors, simulate DMA end immediately */ set_bit(SDHI_DMA_END_FLAG_DMA, &priv->dma_priv.end_flags); if (test_bit(SDHI_DMA_END_FLAG_ACCESS, &priv->dma_priv.end_flags)) queue_work(system_bh_wq, &priv->dma_priv.dma_complete); } } static bool renesas_sdhi_internal_dmac_complete(struct tmio_mmc_host *host) { enum dma_data_direction dir; if (!host->dma_on) return false; if (!host->data) return false; if (host->data->flags & MMC_DATA_READ) dir = DMA_FROM_DEVICE; else dir = DMA_TO_DEVICE; renesas_sdhi_internal_dmac_enable_dma(host, false); renesas_sdhi_internal_dmac_unmap(host, host->data, COOKIE_MAPPED); if (dir == DMA_FROM_DEVICE) clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags); host->dma_on = false; return true; } static void renesas_sdhi_internal_dmac_complete_work_fn(struct work_struct *work) { struct renesas_sdhi_dma *dma_priv = from_work(dma_priv, work, dma_complete); struct renesas_sdhi *priv = container_of(dma_priv, typeof(*priv), dma_priv); struct tmio_mmc_host *host = priv->host; spin_lock_irq(&host->lock); if (!renesas_sdhi_internal_dmac_complete(host)) goto out; tmio_mmc_do_data_irq(host); out: spin_unlock_irq(&host->lock); } static void renesas_sdhi_internal_dmac_end_dma(struct tmio_mmc_host *host) { if (host->data) renesas_sdhi_internal_dmac_complete(host); } static void renesas_sdhi_internal_dmac_post_req(struct mmc_host *mmc, struct mmc_request *mrq, int err) { struct tmio_mmc_host *host = mmc_priv(mmc); struct mmc_data *data = mrq->data; if (!data) return; renesas_sdhi_internal_dmac_unmap(host, data, COOKIE_UNMAPPED); } static void renesas_sdhi_internal_dmac_pre_req(struct mmc_host *mmc, struct mmc_request *mrq) { struct tmio_mmc_host *host = mmc_priv(mmc); struct mmc_data *data = mrq->data; if (!data) return; data->host_cookie = COOKIE_UNMAPPED; renesas_sdhi_internal_dmac_map(host, data, COOKIE_PRE_MAPPED); } static void renesas_sdhi_internal_dmac_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata) { struct renesas_sdhi *priv = host_to_priv(host); /* Disable DMAC interrupts initially */ writel(INFO1_MASK_CLEAR, host->ctl + DM_CM_INFO1_MASK); writel(INFO2_MASK_CLEAR, host->ctl + DM_CM_INFO2_MASK); writel(0, host->ctl + DM_CM_INFO1); writel(0, host->ctl + DM_CM_INFO2); /* Each value is set to non-zero to assume "enabling" each DMA */ host->chan_rx = host->chan_tx = (void *)0xdeadbeaf; INIT_WORK(&priv->dma_priv.dma_complete, renesas_sdhi_internal_dmac_complete_work_fn); INIT_WORK(&host->dma_issue, renesas_sdhi_internal_dmac_issue_work_fn); /* Add pre_req and post_req */ host->ops.pre_req = renesas_sdhi_internal_dmac_pre_req; host->ops.post_req = renesas_sdhi_internal_dmac_post_req; } static void renesas_sdhi_internal_dmac_release_dma(struct tmio_mmc_host *host) { /* Each value is set to zero to assume "disabling" each DMA */ host->chan_rx = host->chan_tx = NULL; } static const struct tmio_mmc_dma_ops renesas_sdhi_internal_dmac_dma_ops = { .start = renesas_sdhi_internal_dmac_start_dma, .enable = renesas_sdhi_internal_dmac_enable_dma, .request = renesas_sdhi_internal_dmac_request_dma, .release = renesas_sdhi_internal_dmac_release_dma, .abort = renesas_sdhi_internal_dmac_abort_dma, .dataend = renesas_sdhi_internal_dmac_dataend_dma, .end = renesas_sdhi_internal_dmac_end_dma, .dma_irq = renesas_sdhi_internal_dmac_dma_irq, }; static int renesas_sdhi_internal_dmac_probe(struct platform_device *pdev) { const struct soc_device_attribute *attr; const struct renesas_sdhi_of_data_with_quirks *of_data_quirks; const struct renesas_sdhi_quirks *quirks; struct device *dev = &pdev->dev; of_data_quirks = of_device_get_match_data(&pdev->dev); quirks = of_data_quirks->quirks; attr = soc_device_match(sdhi_quirks_match); if (attr) quirks = attr->data; /* value is max of SD_SECCNT. Confirmed by HW engineers */ dma_set_max_seg_size(dev, 0xffffffff); return renesas_sdhi_probe(pdev, &renesas_sdhi_internal_dmac_dma_ops, of_data_quirks->of_data, quirks); } static const struct dev_pm_ops renesas_sdhi_internal_dmac_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume) SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, tmio_mmc_host_runtime_resume, NULL) }; static struct platform_driver renesas_internal_dmac_sdhi_driver = { .driver = { .name = "renesas_sdhi_internal_dmac", .probe_type = PROBE_PREFER_ASYNCHRONOUS, .pm = &renesas_sdhi_internal_dmac_dev_pm_ops, .of_match_table = renesas_sdhi_internal_dmac_of_match, }, .probe = renesas_sdhi_internal_dmac_probe, .remove_new = renesas_sdhi_remove, }; module_platform_driver(renesas_internal_dmac_sdhi_driver); MODULE_DESCRIPTION("Renesas SDHI driver for internal DMAC"); MODULE_AUTHOR("Yoshihiro Shimoda"); MODULE_LICENSE("GPL v2");