path: root/drivers/net/wireless/ath/ath10k/snoc.c

/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include "debug.h"
#include "hif.h"
#include "htc.h"
#include "ce.h"
#include "snoc.h"
#include <soc/qcom/icnss.h>
#include <linux/of.h>
#include <linux/platform_device.h>

static void ath10k_snoc_htc_tx_cb(struct ath10k_ce_pipe *ce_state);
static void ath10k_snoc_htc_rx_cb(struct ath10k_ce_pipe *ce_state);
static void ath10k_snoc_htt_tx_cb(struct ath10k_ce_pipe *ce_state);
static void ath10k_snoc_htt_rx_cb(struct ath10k_ce_pipe *ce_state);
static void ath10k_snoc_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state);

static struct ce_attr host_ce_config_wlan[] = {
	/* CE0: host->target HTC control streams */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 16,
		.src_sz_max = 2048,
		.dest_nentries = 0,
		.send_cb = ath10k_snoc_htc_tx_cb,
	},

	/* CE1: target->host HTT + HTC control */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 2048,
		.dest_nentries = 512,
		.recv_cb = ath10k_snoc_htt_htc_rx_cb,
	},

	/* CE2: target->host WMI */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 2048,
		.dest_nentries = 64,
		.recv_cb = ath10k_snoc_htc_rx_cb,
	},

	/* CE3: host->target WMI */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 32,
		.src_sz_max = 2048,
		.dest_nentries = 0,
		.send_cb = ath10k_snoc_htc_tx_cb,
	},

	/* CE4: host->target HTT */
	{
		.flags = CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
		.src_nentries = 256,
		.src_sz_max = 256,
		.dest_nentries = 0,
		.send_cb = ath10k_snoc_htt_tx_cb,
	},

	/* CE5: target->host HTT (ipa_uc->target ) */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 512,
		.dest_nentries = 512,
		.recv_cb = ath10k_snoc_htt_rx_cb,
	},

	/* CE6: target autonomous hif_memcpy */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 0,
		.dest_nentries = 0,
	},

	/* CE7: ce_diag, the Diagnostic Window */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 2,
		.src_sz_max = 2048,
		.dest_nentries = 2,
	},

	/* CE8: Target to uMC */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 2048,
		.dest_nentries = 128,
	},

	/* CE9 target->host HTT */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 2048,
		.dest_nentries = 512,
		.recv_cb = ath10k_snoc_htt_htc_rx_cb,
	},

	/* CE10: target->host HTT */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 2048,
		.dest_nentries = 512,
		.recv_cb = ath10k_snoc_htt_htc_rx_cb,
	},

	/* CE11: target -> host PKTLOG */
	{
		.flags = CE_ATTR_FLAGS,
		.src_nentries = 0,
		.src_sz_max = 2048,
		.dest_nentries = 512,
		.recv_cb = ath10k_snoc_htt_htc_rx_cb,
	},
};

static struct ce_pipe_config target_ce_config_wlan[] = {
	/* CE0: host->target HTC control and raw streams */
	{
		.pipenum = __cpu_to_le32(0),
		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE1: target->host HTT + HTC control */
	{
		.pipenum = __cpu_to_le32(1),
		.pipedir = __cpu_to_le32(PIPEDIR_IN),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE2: target->host WMI */
	{
		.pipenum = __cpu_to_le32(2),
		.pipedir = __cpu_to_le32(PIPEDIR_IN),
		.nentries = __cpu_to_le32(64),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE3: host->target WMI */
	{
		.pipenum = __cpu_to_le32(3),
		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE4: host->target HTT */
	{
		.pipenum = __cpu_to_le32(4),
		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
		.nentries = __cpu_to_le32(256),
		.nbytes_max = __cpu_to_le32(256),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
		.reserved = __cpu_to_le32(0),
	},

	/* CE5: target->host HTT (HIF->HTT) */
	{
		.pipenum = __cpu_to_le32(5),
		.pipedir = __cpu_to_le32(PIPEDIR_OUT),
		.nentries = __cpu_to_le32(1024),
		.nbytes_max = __cpu_to_le32(64),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
		.reserved = __cpu_to_le32(0),
	},

	/* CE6: Reserved for target autonomous hif_memcpy */
	{
		.pipenum = __cpu_to_le32(6),
		.pipedir = __cpu_to_le32(PIPEDIR_INOUT),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(16384),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE7 used only by Host */
	{
		.pipenum = __cpu_to_le32(7),
		.pipedir = __cpu_to_le32(4),
		.nentries = __cpu_to_le32(0),
		.nbytes_max = __cpu_to_le32(0),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
		.reserved = __cpu_to_le32(0),
	},

	/* CE8 Target to uMC */
	{
		.pipenum = __cpu_to_le32(8),
		.pipedir = __cpu_to_le32(PIPEDIR_IN),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(0),
		.reserved = __cpu_to_le32(0),
	},

	/* CE9 target->host HTT */
	{
		.pipenum = __cpu_to_le32(9),
		.pipedir = __cpu_to_le32(PIPEDIR_IN),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE10 target->host HTT */
	{
		.pipenum = __cpu_to_le32(10),
		.pipedir = __cpu_to_le32(PIPEDIR_IN),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},

	/* CE11 target autonomous qcache memcpy */
	{
		.pipenum = __cpu_to_le32(11),
		.pipedir = __cpu_to_le32(PIPEDIR_IN),
		.nentries = __cpu_to_le32(32),
		.nbytes_max = __cpu_to_le32(2048),
		.flags = __cpu_to_le32(CE_ATTR_FLAGS),
		.reserved = __cpu_to_le32(0),
	},
};

static struct service_to_pipe target_service_to_ce_map_wlan[] = {
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(3),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BK),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(3),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BK),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BE),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(3),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BE),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VI),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(3),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VI),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_CONTROL),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(3),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_CONTROL),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_RSVD_CTRL),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(0),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_RSVD_CTRL),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{ /* not used */
		__cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(0),
	},
	{ /* not used */
		__cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(2),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA_MSG),
		__cpu_to_le32(PIPEDIR_OUT),	/* out = UL = host -> target */
		__cpu_to_le32(4),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA_MSG),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(1),
	},
	{
		__cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_IPA_MSG),
		__cpu_to_le32(PIPEDIR_OUT),/* IPA service */
		__cpu_to_le32(5),
	},
	{ /* in = DL = target -> host */
		__cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA2_MSG),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(9),
	},
	{ /* in = DL = target -> host */
		__cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA3_MSG),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(10),
	},
	{ /* in = DL = target -> host pktlog */
		__cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_LOG_MSG),
		__cpu_to_le32(PIPEDIR_IN),	/* in = DL = target -> host */
		__cpu_to_le32(11),
	},
	/* (Additions here) */

	{ /* must be last */
		__cpu_to_le32(0),
		__cpu_to_le32(0),
		__cpu_to_le32(0),
	},
};

void ath10k_snoc_write32(void *ar, u32 offset, u32 value)
{
}

u32 ath10k_snoc_read32(void *ar, u32 offset)
{
	u32 val = 0;
	return val;
}

static int __ath10k_snoc_rx_post_buf(struct ath10k_snoc_pipe *pipe)
{
	struct ath10k *ar = pipe->hif_ce_state;
	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
	struct ath10k_ce_pipe *ce_pipe = pipe->ce_hdl;
	struct sk_buff *skb;
	dma_addr_t paddr;
	int ret;

	skb = dev_alloc_skb(pipe->buf_sz);
	if (!skb)
		return -ENOMEM;

	WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");

	paddr = dma_map_single(ar->dev, skb->data,
			       skb->len + skb_tailroom(skb),
			       DMA_FROM_DEVICE);
	if (unlikely(dma_mapping_error(ar->dev, paddr))) {
		ath10k_warn(ar, "failed to dma map snoc rx buf\n");
		dev_kfree_skb_any(skb);
		return -EIO;
	}

	ATH10K_SKB_RXCB(skb)->paddr = paddr;

	spin_lock_bh(&ar_snoc->ce_lock);
	ret = __ath10k_ce_rx_post_buf(ce_pipe, skb, paddr);
	spin_unlock_bh(&ar_snoc->ce_lock);
	if (ret) {
		dma_unmap_single(ar->dev, paddr, skb->len + skb_tailroom(skb),
				 DMA_FROM_DEVICE);
		dev_kfree_skb_any(skb);
		return ret;
	}

	return 0;
}

static void ath10k_snoc_rx_post_pipe(struct ath10k_snoc_pipe *pipe)
{
	struct ath10k *ar = pipe->hif_ce_state;
	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
	struct ath10k_ce_pipe *ce_pipe = pipe->ce_hdl;
	int ret, num;

	if (pipe->buf_sz == 0)
		return;

	if (!ce_pipe->dest_ring)
		return;

	spin_lock_bh(&ar_snoc->ce_lock);
	num = __ath10k_ce_rx_num_free_bufs(ce_pipe);
	spin_unlock_bh(&ar_snoc->ce_lock);
	while (num--) {
		ret = __ath10k_snoc_rx_post_buf(pipe);
		if (ret) {
			if (ret == -ENOSPC)
				break;
			ath10k_warn(ar, "failed to post rx buf: %d\n", ret);
			mod_timer(&ar_snoc->rx_post_retry, jiffies +
				  ATH10K_SNOC_RX_POST_RETRY_MS);
			break;
		}
	}
}

static void ath10k_snoc_rx_post(struct ath10k *ar)
{
	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
	int i;

	for (i = 0; i < CE_COUNT; i++)
		ath10k_snoc_rx_post_pipe(&ar_snoc->pipe_info[i]);
}

static void ath10k_snoc_rx_replenish_retry(unsigned long ptr)
{
	struct ath10k *ar = (void *)ptr;

	ath10k_snoc_rx_post(ar);
}

static void ath10k_snoc_htc_tx_cb(struct ath10k_ce_pipe *ce_state)
{
	struct ath10k *ar = ce_state->ar;
	struct sk_buff_head list;
	struct sk_buff *skb;

	__skb_queue_head_init(&list);
	while (ath10k_ce_completed_send_next(ce_state, (void **)&skb) == 0) {
		if (!skb)
			continue;

		__skb_queue_tail(&list, skb);
	}

	while ((skb = __skb_dequeue(&list)))
		ath10k_htc_tx_completion_handler(ar, skb);
}

static void ath10k_snoc_process_rx_cb(struct ath10k_ce_pipe *ce_state,
				      void (*callback)(struct ath10k *ar,
						       struct sk_buff *skb))
{
	struct ath10k *ar = ce_state->ar;
	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
	struct ath10k_snoc_pipe *pipe_info =  &ar_snoc->pipe_info[ce_state->id];
	struct sk_buff *skb;
	struct sk_buff_head list;
	void *transfer_context;
	unsigned int nbytes, max_nbytes;

	__skb_queue_head_init(&list);
	while (ath10k_ce_completed_recv_next(ce_state, &transfer_context,
					     &nbytes) == 0) {
		skb = transfer_context;
		max_nbytes = skb->len + skb_tailroom(skb);
		dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
				 max_nbytes, DMA_FROM_DEVICE);

		if (unlikely(max_nbytes < nbytes)) {
			ath10k_warn(ar, "rxed more than expected (nbytes %d, max %d)",
				    nbytes, max_nbytes);
			dev_kfree_skb_any(skb);
			continue;
		}

		skb_put(skb, nbytes);
		__skb_queue_tail(&list, skb);
	}

	while ((skb = __skb_dequeue(&list))) {
		ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc rx ce pipe %d len %d\n",
			   ce_state->id, skb->len);

		callback(ar, skb);
	}

	ath10k_snoc_rx_post_pipe(pipe_info);
}

static void ath10k_snoc_htc_rx_cb(struct ath10k_ce_pipe *ce_state)
{
	ath10k_snoc_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler);
}

static void ath10k_snoc_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state)
{
	/* CE4 polling needs to be done whenever CE pipe which transports
	 * HTT Rx (target->host) is processed.
	 */
	ath10k_ce_per_engine_service(ce_state->ar, CE_POLL_PIPE);

	ath10k_snoc_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler);
}

static void ath10k_snoc_htt_tx_cb(struct ath10k_ce_pipe *ce_state)
{
	struct ath10k *ar = ce_state->ar;
	struct sk_buff *skb;

	while (ath10k_ce_completed_send_next(ce_state, (void **)&skb) == 0) {
		/* no need to call tx completion for NULL pointers */
		if (!skb)
			continue;

		dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
				 skb->len, DMA_TO_DEVICE);
		ath10k_htt_hif_tx_complete(ar, skb);
	}
}

static void ath10k_snoc_htt_rx_deliver(struct ath10k *ar, struct sk_buff *skb)
{
	skb_pull(skb, sizeof(struct ath10k_htc_hdr));
	ath10k_htt_t2h_msg_handler(ar, skb);
}

static void ath10k_snoc_htt_rx_cb(struct ath10k_ce_pipe *ce_state)
{
	/* CE4 polling needs to be done whenever CE pipe which transports
	 * HTT Rx (target->host) is processed.
	 */
	ath10k_ce_per_engine_service(ce_state->ar, CE_POLL_PIPE);

	ath10k_snoc_process_rx_cb(ce_state, ath10k_snoc_htt_rx_deliver);
}

static int ath10k_snoc_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
				 struct ath10k_hif_sg_item *items, int n_items)
{
	return 0;
}

static u16 ath10k_snoc_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
{
	return 0;
}

static void ath10k_snoc_hif_send_complete_check(struct ath10k *ar, u8 pipe,
						int force)
{
}

static int ath10k_snoc_hif_map_service_to_pipe(struct ath10k *ar,
					       u16 service_id,
					       u8 *ul_pipe, u8 *dl_pipe)
{
	return 0;
}

static void ath10k_snoc_hif_get_default_pipe(struct ath10k *ar,
					     u8 *ul_pipe, u8 *dl_pipe)
{
}

static void ath10k_snoc_hif_stop(struct ath10k *ar)
{
}

static void ath10k_snoc_hif_power_down(struct ath10k *ar)
{
}

static int ath10k_snoc_hif_start(struct ath10k *ar)
{
	return 0;
}

static int ath10k_snoc_hif_power_up(struct ath10k *ar)
{
	return 0;
}

static const struct ath10k_hif_ops ath10k_snoc_hif_ops = {
	.tx_sg			= ath10k_snoc_hif_tx_sg,
	.start			= ath10k_snoc_hif_start,
	.stop			= ath10k_snoc_hif_stop,
	.map_service_to_pipe	= ath10k_snoc_hif_map_service_to_pipe,
	.get_default_pipe	= ath10k_snoc_hif_get_default_pipe,
	.send_complete_check	= ath10k_snoc_hif_send_complete_check,
	.get_free_queue_number	= ath10k_snoc_hif_get_free_queue_number,
	.power_up		= ath10k_snoc_hif_power_up,
	.power_down		= ath10k_snoc_hif_power_down,
	.read32			= ath10k_snoc_read32,
	.write32		= ath10k_snoc_write32,
};

static int ath10k_snoc_probe(struct platform_device *pdev)
{
	int ret = 0;
	struct ath10k *ar;
	struct ath10k_snoc *ar_snoc;
	enum ath10k_hw_rev hw_rev;
	struct device *dev;

	dev = &pdev->dev;
	hw_rev = ATH10K_HW_WCN3990;
	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(37));
	ar = ath10k_core_create(sizeof(*ar_snoc), dev, ATH10K_BUS_SNOC,
				hw_rev, &ath10k_snoc_hif_ops);
	if (!ar) {
		dev_err(dev, "failed to allocate core\n");
		return -ENOMEM;
	}
	ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 probed\n", __func__);

	return ret;
}

static int ath10k_snoc_remove(struct platform_device *pdev)
{
	struct ath10k *ar = platform_get_drvdata(pdev);
	struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);

	if (!ar)
		return -EINVAL;

	if (!ar_snoc)
		return -EINVAL;

	ath10k_core_destroy(ar);
	ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 removed\n", __func__);

	return 0;
}

static const struct of_device_id ath10k_snoc_dt_match[] = {
	{.compatible = "qcom,wcn3990-wifi"},
	{}
};
MODULE_DEVICE_TABLE(of, ath10k_snoc_dt_match);

static struct platform_driver ath10k_snoc_driver = {
		.probe  = ath10k_snoc_probe,
		.remove = ath10k_snoc_remove,
		.driver = {
			.name   = "ath10k_snoc",
			.owner = THIS_MODULE,
			.of_match_table = ath10k_snoc_dt_match,
		},
};

static int __init ath10k_snoc_init(void)
{
	int ret;

	ret = platform_driver_register(&ath10k_snoc_driver);
	if (ret)
		pr_err("failed to register ath10k snoc driver: %d\n",
		       ret);

	return ret;
}
module_init(ath10k_snoc_init);

static void __exit ath10k_snoc_exit(void)
{
	platform_driver_unregister(&ath10k_snoc_driver);
}
module_exit(ath10k_snoc_exit);

MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Driver support for Atheros WCN3990 SNOC devices");