[PATCH 13/14] mmc: mmci: add dma_error callback
From: Ludovic Barre <hidden>
Date: 2018-08-01 09:38:01
Also in:
linux-devicetree, linux-mmc, lkml
Subsystem:
arm primecell mmci pl180/1 driver, arm/qualcomm mailing list, multimedia card (mmc), secure digital (sd) and sdio subsystem, the rest · Maintainers:
Russell King, Ulf Hansson, Linus Torvalds
From: Ludovic Barre <redacted> This patch adds dma_error callback at mmci_host_ops to allow to call specific variant. Signed-off-by: Ludovic Barre <redacted> --- 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)
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2.7.4