diff options
author | Ulf Hansson <ulf.hansson@linaro.org> | 2018-07-16 13:08:18 +0200 |
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committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-08-01 12:01:13 +0200 |
commit | 29aba07aea0e36c996001ca3f8997316ebefe0e1 (patch) | |
tree | 98061416a2b2ac0e84b722141fc0c7e12be3a2da /drivers/mmc/host/mmci_qcom_dml.c | |
parent | ed9067fd5f299db7110861a0434d0e2ffb961649 (diff) | |
download | linux-29aba07aea0e36c996001ca3f8997316ebefe0e1.tar.bz2 |
mmc: mmci: Add and implement a ->dma_setup() callback for qcom dml
As a first step to improve the variant specific code for mmci, add a
->dma_setup() callback to the struct mmci_host_ops.
To show its use, let's deploy the callback for the qcom dml, which involves
also to the assign the mmci_host_ops pointer from the variant ->init()
callback.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Ludovic Barre <ludovic.barre@st.com>
Diffstat (limited to 'drivers/mmc/host/mmci_qcom_dml.c')
-rw-r--r-- | drivers/mmc/host/mmci_qcom_dml.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/mmc/host/mmci_qcom_dml.c b/drivers/mmc/host/mmci_qcom_dml.c index 00750c9d3514..be3fab5db83f 100644 --- a/drivers/mmc/host/mmci_qcom_dml.c +++ b/drivers/mmc/host/mmci_qcom_dml.c @@ -119,17 +119,20 @@ static int of_get_dml_pipe_index(struct device_node *np, const char *name) } /* Initialize the dml hardware connected to SD Card controller */ -int dml_hw_init(struct mmci_host *host, struct device_node *np) +static void qcom_dma_setup(struct mmci_host *host) { u32 config; void __iomem *base; int consumer_id, producer_id; + struct device_node *np = host->mmc->parent->of_node; consumer_id = of_get_dml_pipe_index(np, "tx"); producer_id = of_get_dml_pipe_index(np, "rx"); - if (producer_id < 0 || consumer_id < 0) - return -ENODEV; + if (producer_id < 0 || consumer_id < 0) { + host->variant->qcom_dml = false; + return; + } base = host->base + DML_OFFSET; @@ -172,6 +175,13 @@ int dml_hw_init(struct mmci_host *host, struct device_node *np) /* Make sure dml initialization is finished */ mb(); +} - return 0; +static struct mmci_host_ops qcom_variant_ops = { + .dma_setup = qcom_dma_setup, +}; + +void qcom_variant_init(struct mmci_host *host) +{ + host->ops = &qcom_variant_ops; } |