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path: root/drivers/mmc/host/moxart-mmc.c
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Diffstat (limited to 'drivers/mmc/host/moxart-mmc.c')
-rw-r--r--drivers/mmc/host/moxart-mmc.c55
1 files changed, 24 insertions, 31 deletions
diff --git a/drivers/mmc/host/moxart-mmc.c b/drivers/mmc/host/moxart-mmc.c
index 5cfdd3a86e54..3dd8f232052f 100644
--- a/drivers/mmc/host/moxart-mmc.c
+++ b/drivers/mmc/host/moxart-mmc.c
@@ -254,6 +254,11 @@ static void moxart_dma_complete(void *param)
complete(&host->dma_complete);
}
+static bool moxart_use_dma(struct moxart_host *host)
+{
+ return (host->data_len > host->fifo_width) && host->have_dma;
+}
+
static void moxart_transfer_dma(struct mmc_data *data, struct moxart_host *host)
{
u32 len, dir_slave;
@@ -291,11 +296,11 @@ static void moxart_transfer_dma(struct mmc_data *data, struct moxart_host *host)
dma_async_issue_pending(dma_chan);
}
- data->bytes_xfered += host->data_remain;
-
wait_for_completion_interruptible_timeout(&host->dma_complete,
host->timeout);
+ data->bytes_xfered = host->data_len;
+
dma_unmap_sg(dma_chan->device->dev,
data->sg, data->sg_len,
mmc_get_dma_dir(data));
@@ -375,7 +380,7 @@ static void moxart_prepare_data(struct moxart_host *host)
if (data->flags & MMC_DATA_WRITE)
datactrl |= DCR_DATA_WRITE;
- if ((host->data_len > host->fifo_width) && host->have_dma)
+ if (moxart_use_dma(host))
datactrl |= DCR_DMA_EN;
writel(DCR_DATA_FIFO_RESET, host->base + REG_DATA_CONTROL);
@@ -407,7 +412,7 @@ static void moxart_request(struct mmc_host *mmc, struct mmc_request *mrq)
moxart_send_command(host, host->mrq->cmd);
if (mrq->cmd->data) {
- if ((host->data_len > host->fifo_width) && host->have_dma) {
+ if (moxart_use_dma(host)) {
writel(CARD_CHANGE, host->base + REG_INTERRUPT_MASK);
@@ -553,41 +558,33 @@ static int moxart_probe(struct platform_device *pdev)
int irq, ret;
u32 i;
- mmc = mmc_alloc_host(sizeof(struct moxart_host), dev);
+ mmc = devm_mmc_alloc_host(dev, sizeof(*host));
if (!mmc) {
- dev_err(dev, "mmc_alloc_host failed\n");
- ret = -ENOMEM;
- goto out_mmc;
+ dev_err(dev, "devm_mmc_alloc_host failed\n");
+ return -ENOMEM;
}
ret = of_address_to_resource(node, 0, &res_mmc);
- if (ret) {
- dev_err(dev, "of_address_to_resource failed\n");
- goto out_mmc;
- }
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "of_address_to_resource failed\n");
irq = irq_of_parse_and_map(node, 0);
- if (irq <= 0) {
- dev_err(dev, "irq_of_parse_and_map failed\n");
- ret = -EINVAL;
- goto out_mmc;
- }
+ if (irq <= 0)
+ return dev_err_probe(dev, -EINVAL,
+ "irq_of_parse_and_map failed\n");
clk = devm_clk_get(dev, NULL);
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
- goto out_mmc;
- }
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
reg_mmc = devm_ioremap_resource(dev, &res_mmc);
- if (IS_ERR(reg_mmc)) {
- ret = PTR_ERR(reg_mmc);
- goto out_mmc;
- }
+ if (IS_ERR(reg_mmc))
+ return PTR_ERR(reg_mmc);
ret = mmc_of_parse(mmc);
if (ret)
- goto out_mmc;
+ return ret;
host = mmc_priv(mmc);
host->mmc = mmc;
@@ -681,9 +678,6 @@ out:
dma_release_channel(host->dma_chan_tx);
if (!IS_ERR_OR_NULL(host->dma_chan_rx))
dma_release_channel(host->dma_chan_rx);
-out_mmc:
- if (mmc)
- mmc_free_host(mmc);
return ret;
}
@@ -702,7 +696,6 @@ static void moxart_remove(struct platform_device *pdev)
writel(0, host->base + REG_POWER_CONTROL);
writel(readl(host->base + REG_CLOCK_CONTROL) | CLK_OFF,
host->base + REG_CLOCK_CONTROL);
- mmc_free_host(mmc);
}
static const struct of_device_id moxart_mmc_match[] = {
@@ -714,7 +707,7 @@ MODULE_DEVICE_TABLE(of, moxart_mmc_match);
static struct platform_driver moxart_mmc_driver = {
.probe = moxart_probe,
- .remove_new = moxart_remove,
+ .remove = moxart_remove,
.driver = {
.name = "mmc-moxart",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,