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Commit cfccc6ac authored by Ludovic Barre's avatar Ludovic Barre Committed by Ulf Hansson
Browse files

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: default avatarLudovic Barre <ludovic.barre@st.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 5a9f10c3

drivers/mmc/host/mmci.c

+15 −11
Original line number Diff line number Diff line
@@ -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);

		}

drivers/mmc/host/mmci.h

+2 −0
Original line number Diff line number Diff line
@@ -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);

drivers/mmc/host/mmci_qcom_dml.c

+1 −0
Original line number Diff line number Diff line
@@ -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)