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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 04:16:44 +07:00
mmc: renesas-sdhi: rename tmio_mmc_dma.c => renesas_sdhi_sys_dmac.c
Rename the source file for DMA for SDHI as a follow-up to attaching DMA code to the SDHI driver rather than the tmio_core driver. The name "renesas" is chosen as the SDHI driver is applicable to a wider range of SoCs than SH-Mobile it seems to be a more appropriate name. However, the SDHI driver source itself, is left as sh_mobile_sdhi to avoid unnecessary churn. The name sys_dmac was chosen to reflect the type of DMA used. Internal symbols have also been renamed to reflect the filename change. A follow-up patch will re-organise the SDHI driver removing the need for renesas_sdhi_get_dma_ops(). Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
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426e95d176
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c2a96987c7
@ -36,7 +36,7 @@ obj-$(CONFIG_MMC_S3C) += s3cmci.o
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obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o
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obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o
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obj-$(CONFIG_MMC_TMIO_CORE) += tmio_mmc_core.o
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obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o tmio_mmc_dma.o
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obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o renesas_sdhi_sys_dmac.o
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obj-$(CONFIG_MMC_CB710) += cb710-mmc.o
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obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o
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obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o
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18
drivers/mmc/host/renesas_sdhi.h
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18
drivers/mmc/host/renesas_sdhi.h
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@ -0,0 +1,18 @@
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/*
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* Renesas Mobile SDHI
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*
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* Copyright (C) 2017 Horms Solutions Ltd., Simon Horman
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* Copyright (C) 2017 Renesas Electronics Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef RENESAS_SDHI_H
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#define RENESAS_SDHI_H
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#include "tmio_mmc.h"
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const struct tmio_mmc_dma_ops *renesas_sdhi_get_dma_ops(void);
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#endif
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@ -20,7 +20,8 @@
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#define TMIO_MMC_MIN_DMA_LEN 8
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static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
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static void renesas_sdhi_sys_dmac_enable_dma(struct tmio_mmc_host *host,
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bool enable)
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{
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if (!host->chan_tx || !host->chan_rx)
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return;
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@ -29,19 +30,19 @@ static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
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host->dma->enable(host, enable);
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}
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static void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
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static void renesas_sdhi_sys_dmac_abort_dma(struct tmio_mmc_host *host)
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{
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tmio_mmc_enable_dma(host, false);
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renesas_sdhi_sys_dmac_enable_dma(host, false);
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if (host->chan_rx)
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dmaengine_terminate_all(host->chan_rx);
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if (host->chan_tx)
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dmaengine_terminate_all(host->chan_tx);
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tmio_mmc_enable_dma(host, true);
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renesas_sdhi_sys_dmac_enable_dma(host, true);
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}
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static void tmio_mmc_dma_callback(void *arg)
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static void renesas_sdhi_sys_dmac_dma_callback(void *arg)
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{
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struct tmio_mmc_host *host = arg;
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@ -69,7 +70,7 @@ static void tmio_mmc_dma_callback(void *arg)
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spin_unlock_irq(&host->lock);
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}
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static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
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static void renesas_sdhi_sys_dmac_start_dma_rx(struct tmio_mmc_host *host)
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{
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struct scatterlist *sg = host->sg_ptr, *sg_tmp;
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struct dma_async_tx_descriptor *desc = NULL;
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@ -115,7 +116,7 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
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if (desc) {
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reinit_completion(&host->dma_dataend);
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desc->callback = tmio_mmc_dma_callback;
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desc->callback = renesas_sdhi_sys_dmac_dma_callback;
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desc->callback_param = host;
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cookie = dmaengine_submit(desc);
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@ -127,7 +128,7 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
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pio:
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if (!desc) {
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/* DMA failed, fall back to PIO */
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tmio_mmc_enable_dma(host, false);
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renesas_sdhi_sys_dmac_enable_dma(host, false);
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if (ret >= 0)
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ret = -EIO;
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host->chan_rx = NULL;
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@ -143,7 +144,7 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
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}
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}
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static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
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static void renesas_sdhi_sys_dmac_start_dma_tx(struct tmio_mmc_host *host)
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{
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struct scatterlist *sg = host->sg_ptr, *sg_tmp;
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struct dma_async_tx_descriptor *desc = NULL;
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@ -193,7 +194,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
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if (desc) {
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reinit_completion(&host->dma_dataend);
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desc->callback = tmio_mmc_dma_callback;
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desc->callback = renesas_sdhi_sys_dmac_dma_callback;
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desc->callback_param = host;
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cookie = dmaengine_submit(desc);
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@ -205,7 +206,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
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pio:
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if (!desc) {
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/* DMA failed, fall back to PIO */
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tmio_mmc_enable_dma(host, false);
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renesas_sdhi_sys_dmac_enable_dma(host, false);
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if (ret >= 0)
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ret = -EIO;
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host->chan_tx = NULL;
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@ -221,19 +222,19 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
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}
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}
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static void tmio_mmc_start_dma(struct tmio_mmc_host *host,
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static void renesas_sdhi_sys_dmac_start_dma(struct tmio_mmc_host *host,
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struct mmc_data *data)
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{
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if (data->flags & MMC_DATA_READ) {
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if (host->chan_rx)
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tmio_mmc_start_dma_rx(host);
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renesas_sdhi_sys_dmac_start_dma_rx(host);
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} else {
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if (host->chan_tx)
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tmio_mmc_start_dma_tx(host);
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renesas_sdhi_sys_dmac_start_dma_tx(host);
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}
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}
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static void tmio_mmc_issue_tasklet_fn(unsigned long priv)
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static void renesas_sdhi_sys_dmac_issue_tasklet_fn(unsigned long priv)
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{
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struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv;
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struct dma_chan *chan = NULL;
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@ -255,8 +256,8 @@ static void tmio_mmc_issue_tasklet_fn(unsigned long priv)
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dma_async_issue_pending(chan);
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}
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static void tmio_mmc_request_dma(struct tmio_mmc_host *host,
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struct tmio_mmc_data *pdata)
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static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host,
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struct tmio_mmc_data *pdata)
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{
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/* We can only either use DMA for both Tx and Rx or not use it at all */
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if (!host->dma || (!host->pdev->dev.of_node &&
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@ -319,10 +320,12 @@ static void tmio_mmc_request_dma(struct tmio_mmc_host *host,
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goto ebouncebuf;
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init_completion(&host->dma_dataend);
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tasklet_init(&host->dma_issue, tmio_mmc_issue_tasklet_fn, (unsigned long)host);
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tasklet_init(&host->dma_issue,
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renesas_sdhi_sys_dmac_issue_tasklet_fn,
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(unsigned long)host);
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}
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tmio_mmc_enable_dma(host, true);
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renesas_sdhi_sys_dmac_enable_dma(host, true);
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return;
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@ -336,7 +339,7 @@ static void tmio_mmc_request_dma(struct tmio_mmc_host *host,
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host->chan_tx = NULL;
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}
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static void tmio_mmc_release_dma(struct tmio_mmc_host *host)
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static void renesas_sdhi_sys_dmac_release_dma(struct tmio_mmc_host *host)
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{
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if (host->chan_tx) {
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struct dma_chan *chan = host->chan_tx;
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@ -354,15 +357,15 @@ static void tmio_mmc_release_dma(struct tmio_mmc_host *host)
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}
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}
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static const struct tmio_mmc_dma_ops tmio_mmc_dma_ops = {
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.start = tmio_mmc_start_dma,
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.enable = tmio_mmc_enable_dma,
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.request = tmio_mmc_request_dma,
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.release = tmio_mmc_release_dma,
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.abort = tmio_mmc_abort_dma,
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static const struct tmio_mmc_dma_ops renesas_sdhi_sys_dmac_dma_ops = {
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.start = renesas_sdhi_sys_dmac_start_dma,
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.enable = renesas_sdhi_sys_dmac_enable_dma,
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.request = renesas_sdhi_sys_dmac_request_dma,
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.release = renesas_sdhi_sys_dmac_release_dma,
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.abort = renesas_sdhi_sys_dmac_abort_dma,
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};
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const struct tmio_mmc_dma_ops *tmio_mmc_get_dma_ops(void)
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const struct tmio_mmc_dma_ops *renesas_sdhi_get_dma_ops(void)
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{
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return &tmio_mmc_dma_ops;
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return &renesas_sdhi_sys_dmac_dma_ops;
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}
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@ -35,6 +35,7 @@
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#include <linux/pinctrl/pinctrl-state.h>
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#include <linux/regulator/consumer.h>
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#include "renesas_sdhi.h"
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#include "tmio_mmc.h"
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#define EXT_ACC 0xe4
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@ -667,7 +668,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
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/* All SDHI have SDIO status bits which must be 1 */
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mmc_data->flags |= TMIO_MMC_SDIO_STATUS_SETBITS;
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ret = tmio_mmc_host_probe(host, mmc_data, tmio_mmc_get_dma_ops());
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ret = tmio_mmc_host_probe(host, mmc_data, renesas_sdhi_get_dma_ops());
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if (ret < 0)
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goto efree;
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@ -213,15 +213,6 @@ void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
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void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
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irqreturn_t tmio_mmc_irq(int irq, void *devid);
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#if IS_ENABLED(CONFIG_MMC_SDHI)
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const struct tmio_mmc_dma_ops *tmio_mmc_get_dma_ops(void);
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#else
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static inline const struct tmio_mmc_dma_ops *tmio_mmc_get_dma_ops(void)
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{
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return NULL;
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}
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#endif
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static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
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unsigned long *flags)
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{
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