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mmc: mmci: add dma_error callback 

This patch adds dma_error callback at mmci_host_ops
to allow to call specific variant.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ludovic Barre 2018-10-08 14:08:40 +02:00 committed by Ulf Hansson
parent 5a9f10c359
commit cfccc6ac00
3 changed files with 18 additions and 11 deletions
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26
drivers/mmc/host/mmci.c
View File

@ -469,6 +469,15 @@ void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data)
host->ops->dma_finalize(host, data);
}
void mmci_dma_error(struct mmci_host *host)
{
if (!host->use_dma)
return;
if (host->ops && host->ops->dma_error)
host->ops->dma_error(host);
}
static void
mmci_request_end(struct mmci_host *host, struct mmc_request *mrq)
{
@ -633,11 +642,11 @@ static void mmci_dma_unmap(struct mmci_host *host, struct mmc_data *data)
mmc_get_dma_dir(data));
}
static void mmci_dma_data_error(struct mmci_host *host)
void mmci_dmae_error(struct mmci_host *host)
{
struct mmci_dmae_priv *dmae = host->dma_priv;
if (!host->use_dma || !dma_inprogress(host))
if (!dma_inprogress(host))
return;
dev_err(mmc_dev(host->mmc), "error during DMA transfer!\n");
@ -674,7 +683,7 @@ void mmci_dmae_finalize(struct mmci_host *host, struct mmc_data *data)
* contiguous buffers. On TX, we'll get a FIFO underrun error.
*/
if (status & MCI_RXDATAAVLBLMASK) {
mmci_dma_data_error(host);
mmci_dma_error(host);
if (!data->error)
data->error = -EIO;
} else if (!data->host_cookie) {
@ -854,18 +863,13 @@ static struct mmci_host_ops mmci_variant_ops = {
.dma_release = mmci_dmae_release,
.dma_start = mmci_dmae_start,
.dma_finalize = mmci_dmae_finalize,
.dma_error = mmci_dmae_error,
};
void mmci_variant_init(struct mmci_host *host)
{
host->ops = &mmci_variant_ops;
}
#else
/* Blank functions if the DMA engine is not available */
static inline void mmci_dma_data_error(struct mmci_host *host)
{
}
#endif
static void mmci_pre_request(struct mmc_host *mmc, struct mmc_request *mrq)
@ -1037,7 +1041,7 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data,
u32 remain, success;
/* Terminate the DMA transfer */
mmci_dma_data_error(host);
mmci_dma_error(host);
/*
* Calculate how far we are into the transfer. Note that
@ -1183,7 +1187,7 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd,
if ((!sbc && !cmd->data) || cmd->error) {
if (host->data) {
/* Terminate the DMA transfer */
mmci_dma_data_error(host);
mmci_dma_error(host);
mmci_stop_data(host);
}

2
drivers/mmc/host/mmci.h
View File

@ -282,6 +282,7 @@ struct mmci_host_ops {
void (*dma_release)(struct mmci_host *host);
int (*dma_start)(struct mmci_host *host, unsigned int *datactrl);
void (*dma_finalize)(struct mmci_host *host, struct mmc_data *data);
void (*dma_error)(struct mmci_host *host);
};
struct mmci_host {
@ -343,3 +344,4 @@ int mmci_dmae_setup(struct mmci_host *host);
void mmci_dmae_release(struct mmci_host *host);
int mmci_dmae_start(struct mmci_host *host, unsigned int *datactrl);
void mmci_dmae_finalize(struct mmci_host *host, struct mmc_data *data);
void mmci_dmae_error(struct mmci_host *host);

1
drivers/mmc/host/mmci_qcom_dml.c
View File

@ -191,6 +191,7 @@ static struct mmci_host_ops qcom_variant_ops = {
.dma_release = mmci_dmae_release,
.dma_start = mmci_dmae_start,
.dma_finalize = mmci_dmae_finalize,
.dma_error = mmci_dmae_error,
};
void qcom_variant_init(struct mmci_host *host)