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Subject[PATCH 13/14] mmc: mmci: add dma_error callback
Date
From: Ludovic Barre <ludovic.barre@st.com>

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>
---
drivers/mmc/host/mmci.c | 20 +++++++++++---------
drivers/mmc/host/mmci.h | 2 ++
drivers/mmc/host/mmci_qcom_dml.c | 1 +
3 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index b124a73..d5ca93e 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -453,6 +453,12 @@ 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->ops && host->ops->dma_error)
+ host->ops->dma_error(host);
+}
+
static void
mmci_request_end(struct mmci_host *host, struct mmc_request *mrq)
{
@@ -615,7 +621,7 @@ static void __mmci_dmae_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 dmaengine_priv *dmae = host->dma_priv;

@@ -656,7 +662,7 @@ 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) {
@@ -827,13 +833,9 @@ 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,
};
#else
-/* Blank functions if the DMA engine is not available */
-static inline void mmci_dma_data_error(struct mmci_host *host)
-{
-}
-
static struct mmci_host_ops mmci_variant_ops = {};
#endif

@@ -1011,7 +1013,7 @@ 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
@@ -1157,7 +1159,7 @@ 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);
}
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 3f482d5..0a4811d 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -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 {
@@ -342,3 +343,4 @@ 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);
diff --git a/drivers/mmc/host/mmci_qcom_dml.c b/drivers/mmc/host/mmci_qcom_dml.c
index ba7e311..80701b4 100644
--- a/drivers/mmc/host/mmci_qcom_dml.c
+++ b/drivers/mmc/host/mmci_qcom_dml.c
@@ -189,6 +189,7 @@ 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)
--
2.7.4
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