[PATCH V2 03/27] mmc: mmci: convert dma_setup callback to return an int
From: Ludovic Barre <hidden>
Date: 2018-09-18 10:59:08
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 converts dma_setup callback to return an integer This patch is needed to prepare sdmmc variant with internal dma Signed-off-by: Ludovic Barre <redacted> --- drivers/mmc/host/mmci.c | 16 +++++++++++----- drivers/mmc/host/mmci.h | 2 +- drivers/mmc/host/mmci_qcom_dml.c | 6 ++++-- 3 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 7d22cb9..077d4a7 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c@@ -415,7 +415,7 @@ static void mmci_init_sg(struct mmci_host *host, struct mmc_data *data) * no custom DMA interfaces are supported. */ #ifdef CONFIG_DMA_ENGINE -static void mmci_dma_setup(struct mmci_host *host) +static int mmci_dma_setup(struct mmci_host *host) { const char *rxname, *txname;
@@ -466,7 +466,9 @@ static void mmci_dma_setup(struct mmci_host *host) } if (host->ops && host->ops->dma_setup) - host->ops->dma_setup(host); + return host->ops->dma_setup(host); + + return 0; } /*
@@ -515,7 +517,7 @@ static void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data) u32 status; int i; - if (!__dma_inprogress(dmae)) + if (!__dma_inprogress(host)) return; /* Wait up to 1ms for the DMA to complete */
@@ -741,8 +743,10 @@ static void mmci_post_request(struct mmc_host *mmc, struct mmc_request *mrq, static void mmci_get_next_data(struct mmci_host *host, struct mmc_data *data) { } -static inline void mmci_dma_setup(struct mmci_host *host) + +static inline int mmci_dma_setup(struct mmci_host *host) { + return 0; } static inline void mmci_dma_release(struct mmci_host *host)
@@ -1796,7 +1800,9 @@ static int mmci_probe(struct amba_device *dev, amba_rev(dev), (unsigned long long)dev->res.start, dev->irq[0], dev->irq[1]); - mmci_dma_setup(host); + ret = mmci_dma_setup(host); + if (ret) + goto clk_disable; pm_runtime_set_autosuspend_delay(&dev->dev, 50); pm_runtime_use_autosuspend(&dev->dev);
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index f1ec066..312ad5c 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h@@ -273,7 +273,7 @@ struct variant_data { /* mmci variant callbacks */ struct mmci_host_ops { - void (*dma_setup)(struct mmci_host *host); + int (*dma_setup)(struct mmci_host *host); }; struct mmci_host_next {
diff --git a/drivers/mmc/host/mmci_qcom_dml.c b/drivers/mmc/host/mmci_qcom_dml.c
index be3fab5..1bb59cf 100644
--- a/drivers/mmc/host/mmci_qcom_dml.c
+++ b/drivers/mmc/host/mmci_qcom_dml.c@@ -119,7 +119,7 @@ static int of_get_dml_pipe_index(struct device_node *np, const char *name) } /* Initialize the dml hardware connected to SD Card controller */ -static void qcom_dma_setup(struct mmci_host *host) +static int qcom_dma_setup(struct mmci_host *host) { u32 config; void __iomem *base;
@@ -131,7 +131,7 @@ static void qcom_dma_setup(struct mmci_host *host) if (producer_id < 0 || consumer_id < 0) { host->variant->qcom_dml = false; - return; + return -EINVAL; } base = host->base + DML_OFFSET;
@@ -175,6 +175,8 @@ static void qcom_dma_setup(struct mmci_host *host) /* Make sure dml initialization is finished */ mb(); + + return 0; } static struct mmci_host_ops qcom_variant_ops = {
--
2.7.4