/*
 * Copyright (c) 2010-2011,2013-2015 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.
 *
 * lpass-apq8016.c -- ALSA SoC CPU DAI driver for APQ8016 LPASS
 *
 */


#include <linux/clk.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>

#include <dt-bindings/sound/apq8016-lpass.h>
#include "lpass-lpaif-reg.h"
#include "lpass.h"

static struct snd_soc_dai_driver apq8016_lpass_cpu_dai_driver[] = {
	[MI2S_PRIMARY] =  {
		.id = MI2S_PRIMARY,
		.name = "Primary MI2S",
		.playback = {
			.stream_name	= "Primary Playback",
			.formats	= SNDRV_PCM_FMTBIT_S16 |
						SNDRV_PCM_FMTBIT_S24 |
						SNDRV_PCM_FMTBIT_S32,
			.rates		= SNDRV_PCM_RATE_8000 |
						SNDRV_PCM_RATE_16000 |
						SNDRV_PCM_RATE_32000 |
						SNDRV_PCM_RATE_48000 |
						SNDRV_PCM_RATE_96000,
			.rate_min	= 8000,
			.rate_max	= 96000,
			.channels_min	= 1,
			.channels_max	= 8,
		},
		.probe	= &asoc_qcom_lpass_cpu_dai_probe,
		.ops    = &asoc_qcom_lpass_cpu_dai_ops,
	},
	[MI2S_SECONDARY] =  {
		.id = MI2S_SECONDARY,
		.name = "Secondary MI2S",
		.playback = {
			.stream_name	= "Secondary Playback",
			.formats	= SNDRV_PCM_FMTBIT_S16 |
						SNDRV_PCM_FMTBIT_S24 |
						SNDRV_PCM_FMTBIT_S32,
			.rates		= SNDRV_PCM_RATE_8000 |
						SNDRV_PCM_RATE_16000 |
						SNDRV_PCM_RATE_32000 |
						SNDRV_PCM_RATE_48000 |
						SNDRV_PCM_RATE_96000,
			.rate_min	= 8000,
			.rate_max	= 96000,
			.channels_min	= 1,
			.channels_max	= 8,
		},
		.probe	= &asoc_qcom_lpass_cpu_dai_probe,
		.ops    = &asoc_qcom_lpass_cpu_dai_ops,
	},
	[MI2S_TERTIARY] =  {
		.id = MI2S_TERTIARY,
		.name = "Tertiary MI2S",
		.capture = {
			.stream_name	= "Tertiary Capture",
			.formats	= SNDRV_PCM_FMTBIT_S16 |
						SNDRV_PCM_FMTBIT_S24 |
						SNDRV_PCM_FMTBIT_S32,
			.rates		= SNDRV_PCM_RATE_8000 |
						SNDRV_PCM_RATE_16000 |
						SNDRV_PCM_RATE_32000 |
						SNDRV_PCM_RATE_48000 |
						SNDRV_PCM_RATE_96000,
			.rate_min	= 8000,
			.rate_max	= 96000,
			.channels_min	= 1,
			.channels_max	= 8,
		},
		.probe	= &asoc_qcom_lpass_cpu_dai_probe,
		.ops    = &asoc_qcom_lpass_cpu_dai_ops,
	},
	[MI2S_QUATERNARY] =  {
		.id = MI2S_QUATERNARY,
		.name = "Quatenary MI2S",
		.playback = {
			.stream_name	= "Quatenary Playback",
			.formats	= SNDRV_PCM_FMTBIT_S16 |
						SNDRV_PCM_FMTBIT_S24 |
						SNDRV_PCM_FMTBIT_S32,
			.rates		= SNDRV_PCM_RATE_8000 |
						SNDRV_PCM_RATE_16000 |
						SNDRV_PCM_RATE_32000 |
						SNDRV_PCM_RATE_48000 |
						SNDRV_PCM_RATE_96000,
			.rate_min	= 8000,
			.rate_max	= 96000,
			.channels_min	= 1,
			.channels_max	= 8,
		},
		.capture = {
			.stream_name	= "Quatenary Capture",
			.formats	= SNDRV_PCM_FMTBIT_S16 |
						SNDRV_PCM_FMTBIT_S24 |
						SNDRV_PCM_FMTBIT_S32,
			.rates		= SNDRV_PCM_RATE_8000 |
						SNDRV_PCM_RATE_16000 |
						SNDRV_PCM_RATE_32000 |
						SNDRV_PCM_RATE_48000 |
						SNDRV_PCM_RATE_96000,
			.rate_min	= 8000,
			.rate_max	= 96000,
			.channels_min	= 1,
			.channels_max	= 8,
		},
		.probe	= &asoc_qcom_lpass_cpu_dai_probe,
		.ops    = &asoc_qcom_lpass_cpu_dai_ops,
	},
};

static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata,
					   int direction)
{
	struct lpass_variant *v = drvdata->variant;
	int chan = 0;

	if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
		chan = find_first_zero_bit(&drvdata->dma_ch_bit_map,
					v->rdma_channels);

		if (chan >= v->rdma_channels)
			return -EBUSY;
	} else {
		chan = find_next_zero_bit(&drvdata->dma_ch_bit_map,
					v->wrdma_channel_start +
					v->wrdma_channels,
					v->wrdma_channel_start);

		if (chan >=  v->wrdma_channel_start + v->wrdma_channels)
			return -EBUSY;
	}

	set_bit(chan, &drvdata->dma_ch_bit_map);

	return chan;
}

static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)
{
	clear_bit(chan, &drvdata->dma_ch_bit_map);

	return 0;
}

static int apq8016_lpass_init(struct platform_device *pdev)
{
	struct lpass_data *drvdata = platform_get_drvdata(pdev);
	struct device *dev = &pdev->dev;
	int ret;

	drvdata->pcnoc_mport_clk = devm_clk_get(dev, "pcnoc-mport-clk");
	if (IS_ERR(drvdata->pcnoc_mport_clk)) {
		dev_err(&pdev->dev, "%s() error getting pcnoc-mport-clk: %ld\n",
				__func__, PTR_ERR(drvdata->pcnoc_mport_clk));
		return PTR_ERR(drvdata->pcnoc_mport_clk);
	}

	ret = clk_prepare_enable(drvdata->pcnoc_mport_clk);
	if (ret) {
		dev_err(&pdev->dev, "%s() Error enabling pcnoc-mport-clk: %d\n",
				__func__, ret);
		return ret;
	}

	drvdata->pcnoc_sway_clk = devm_clk_get(dev, "pcnoc-sway-clk");
	if (IS_ERR(drvdata->pcnoc_sway_clk)) {
		dev_err(&pdev->dev, "%s() error getting pcnoc-sway-clk: %ld\n",
				__func__, PTR_ERR(drvdata->pcnoc_sway_clk));
		return PTR_ERR(drvdata->pcnoc_sway_clk);
	}

	ret = clk_prepare_enable(drvdata->pcnoc_sway_clk);
	if (ret) {
		dev_err(&pdev->dev, "%s() Error enabling pcnoc_sway_clk: %d\n",
				__func__, ret);
		return ret;
	}

	return 0;
}

static int apq8016_lpass_exit(struct platform_device *pdev)
{
	struct lpass_data *drvdata = platform_get_drvdata(pdev);

	clk_disable_unprepare(drvdata->pcnoc_mport_clk);
	clk_disable_unprepare(drvdata->pcnoc_sway_clk);

	return 0;
}


static struct lpass_variant apq8016_data = {
	.i2sctrl_reg_base	= 0x1000,
	.i2sctrl_reg_stride	= 0x1000,
	.i2s_ports		= 4,
	.irq_reg_base		= 0x6000,
	.irq_reg_stride		= 0x1000,
	.irq_ports		= 3,
	.rdma_reg_base		= 0x8400,
	.rdma_reg_stride	= 0x1000,
	.rdma_channels		= 2,
	.dmactl_audif_start	= 1,
	.wrdma_reg_base		= 0xB000,
	.wrdma_reg_stride	= 0x1000,
	.wrdma_channel_start	= 5,
	.wrdma_channels		= 2,
	.dai_driver		= apq8016_lpass_cpu_dai_driver,
	.num_dai		= ARRAY_SIZE(apq8016_lpass_cpu_dai_driver),
	.init			= apq8016_lpass_init,
	.exit			= apq8016_lpass_exit,
	.alloc_dma_channel	= apq8016_lpass_alloc_dma_channel,
	.free_dma_channel	= apq8016_lpass_free_dma_channel,
};

static const struct of_device_id apq8016_lpass_cpu_device_id[] = {
	{ .compatible = "qcom,lpass-cpu-apq8016", .data = &apq8016_data },
	{}
};
MODULE_DEVICE_TABLE(of, apq8016_lpass_cpu_device_id);

static struct platform_driver apq8016_lpass_cpu_platform_driver = {
	.driver	= {
		.name		= "apq8016-lpass-cpu",
		.of_match_table	= of_match_ptr(apq8016_lpass_cpu_device_id),
	},
	.probe	= asoc_qcom_lpass_cpu_platform_probe,
	.remove	= asoc_qcom_lpass_cpu_platform_remove,
};
module_platform_driver(apq8016_lpass_cpu_platform_driver);

MODULE_DESCRIPTION("APQ8016 LPASS CPU Driver");
MODULE_LICENSE("GPL v2");

2eaf60767bc71d359f4cbc7a561f8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net</div><div class='commit-msg'>Pull networking fixes from David Miller:

 1) Fix handling of interrupt status in stmmac driver. Just because we
    have masked the event from generating interrupts, doesn't mean the
    bit won't still be set in the interrupt status register. From Alexey
    Brodkin.

 2) Fix DMA API debugging splats in gianfar driver, from Arseny Solokha.

 3) Fix off-by-one error in __ip6_append_data(), from Vlad Yasevich.

 4) cls_flow does not match on icmpv6 codes properly, from Simon Horman.

 5) Initial MAC address can be set incorrectly in some scenerios, from
    Ivan Vecera.

 6) Packet header pointer arithmetic fix in ip6_tnl_parse_tlv_end_lim(),
    from Dan Carpenter.

 7) Fix divide by zero in __tcp_select_window(), from Eric Dumazet.

 8) Fix crash in iwlwifi when unregistering thermal zone, from Jens
    Axboe.

 9) Check for DMA mapping errors in starfire driver, from Alexey
    Khoroshilov.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (31 commits)
  tcp: fix 0 divide in __tcp_select_window()
  ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim()
  net: fix ndo_features_check/ndo_fix_features comment ordering
  net/sched: matchall: Fix configuration race
  be2net: fix initial MAC setting
  ipv6: fix flow labels when the traffic class is non-0
  net: thunderx: avoid dereferencing xcv when NULL
  net/sched: cls_flower: Correct matching on ICMPv6 code
  ipv6: Paritially checksum full MTU frames
  net/mlx4_core: Avoid command timeouts during VF driver device shutdown
  gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page
  net: ethtool: add support for 2500BaseT and 5000BaseT link modes
  can: bcm: fix hrtimer/tasklet termination in bcm op removal
  net: adaptec: starfire: add checks for dma mapping errors
  net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause
  can: Fix kernel panic at security_sock_rcv_skb
  net: macb: Fix 64 bit addressing support for GEM
  stmmac: Discard masked flags in interrupt status register
  net/mlx5e: Check ets capability before ets query FW command
  net/mlx5e: Fix update of hash function/key via ethtool
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=6d04dfc8966019b8b0977b2cb942351f13d2b178'>Diffstat</a> (limited to 'drivers/usb/serial/usb-wwan.h')</div><table summary='diffstat' class='diffstat'>