Commit 41c2c3d4 authored by Mahesh Mahadevan's avatar Mahesh Mahadevan Committed by Carles Cufi
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drivers: dma_mcux_lpc: Clear out the dma channel structure 

The DMA channel data structure can retain config information.
We need to clear this everytime dma_configure is called on a
channel.

Signed-off-by: default avatarMahesh Mahadevan <mahesh.mahadevan@nxp.com>
parent f390f7d0

drivers/dma/dma_mcux_lpc.c

+12 −3
Changes for drivers/dma/dma_mcux_lpc.c: 12 added lines, 3 removed lines.
Original line number Diff line number Diff line
@@ -259,6 +259,15 @@ static int dma_mcux_lpc_queue_descriptors(struct channel_data *data, 
	return 0;

}



static void dma_mcux_lpc_clear_channel_data(struct channel_data *data)

{

	data->dma_callback = NULL;

	data->dir = 0;

	data->descriptors_queued = false;

	data->num_of_descriptors = 0;

	data->curr_descriptor = NULL;

	data->width = 0;

}



/* Configure a channel */

static int dma_mcux_lpc_configure(const struct device *dev, uint32_t channel,
@@ -376,6 +385,8 @@ static int dma_mcux_lpc_configure(const struct device *dev, uint32_t channel, 
		data = DEV_CHANNEL_DATA(dev, virtual_channel);

	}



	dma_mcux_lpc_clear_channel_data(data);



	data->dir = config->channel_direction;



	if (data->busy) {
@@ -386,10 +397,8 @@ static int dma_mcux_lpc_configure(const struct device *dev, uint32_t channel, 


	k_spinlock_key_t otrigs_key = k_spin_lock(&configuring_otrigs);



	data->descriptors_queued = false;

	data->num_of_descriptors = 0;

	data->width = width;

	data->curr_descriptor = NULL;



	if (config->source_chaining_en || config->dest_chaining_en) {

		/* Chaining is enabled */

		if (!dev_config->otrig_base_address || !dev_config->itrig_base_address) {

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