bus/fsl-mc: support dma configure for devices on fsl-mc bus
This patch adds support of dma configuration for devices on fsl-mc bus using 'dma_configure' callback for busses. Also, directly calling arch_setup_dma_ops is removed from the fsl-mc bus. Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com> Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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eab03e2a1a
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a259ed1618
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@ -127,6 +127,16 @@ static int fsl_mc_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
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return 0;
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return 0;
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}
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}
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static int fsl_mc_dma_configure(struct device *dev)
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{
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struct device *dma_dev = dev;
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while (dev_is_fsl_mc(dma_dev))
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dma_dev = dma_dev->parent;
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return of_dma_configure(dev, dma_dev->of_node, 0);
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}
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static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
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static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
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char *buf)
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char *buf)
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{
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{
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@ -148,6 +158,7 @@ struct bus_type fsl_mc_bus_type = {
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.name = "fsl-mc",
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.name = "fsl-mc",
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.match = fsl_mc_bus_match,
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.match = fsl_mc_bus_match,
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.uevent = fsl_mc_bus_uevent,
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.uevent = fsl_mc_bus_uevent,
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.dma_configure = fsl_mc_dma_configure,
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.dev_groups = fsl_mc_dev_groups,
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.dev_groups = fsl_mc_dev_groups,
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};
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};
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EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
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EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
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@ -633,10 +644,6 @@ int fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc,
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goto error_cleanup_dev;
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goto error_cleanup_dev;
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}
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}
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/* Objects are coherent, unless 'no shareability' flag set. */
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if (!(obj_desc->flags & FSL_MC_OBJ_FLAG_NO_MEM_SHAREABILITY))
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arch_setup_dma_ops(&mc_dev->dev, 0, 0, NULL, true);
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/*
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/*
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* The device-specific probe callback will get invoked by device_add()
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* The device-specific probe callback will get invoked by device_add()
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*/
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*/
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