1 files changed, 0 insertions, 428 deletions
diff --git a/sound/soc/intel/skylake/skl-ssp-clk.c b/sound/soc/intel/skylake/skl-ssp-clk.c
deleted file mode 100644
index 50e93c3707e8..000000000000
--- a/sound/soc/intel/skylake/skl-ssp-clk.c
+++ /dev/null
@@ -1,428 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-// Copyright(c) 2015-17 Intel Corporation
-
-/*
- *  skl-ssp-clk.c - ASoC skylake ssp clock driver
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/clk-provider.h>
-#include <linux/clkdev.h>
-#include <sound/intel-nhlt.h>
-#include "skl.h"
-#include "skl-ssp-clk.h"
-#include "skl-topology.h"
-
-#define to_skl_clk(_hw)	container_of(_hw, struct skl_clk, hw)
-
-struct skl_clk_parent {
-	struct clk_hw *hw;
-	struct clk_lookup *lookup;
-};
-
-struct skl_clk {
-	struct clk_hw hw;
-	struct clk_lookup *lookup;
-	unsigned long rate;
-	struct skl_clk_pdata *pdata;
-	u32 id;
-};
-
-struct skl_clk_data {
-	struct skl_clk_parent parent[SKL_MAX_CLK_SRC];
-	struct skl_clk *clk[SKL_MAX_CLK_CNT];
-	u8 avail_clk_cnt;
-};
-
-static int skl_get_clk_type(u32 index)
-{
-	switch (index) {
-	case 0 ... (SKL_SCLK_OFS - 1):
-		return SKL_MCLK;
-
-	case SKL_SCLK_OFS ... (SKL_SCLKFS_OFS - 1):
-		return SKL_SCLK;
-
-	case SKL_SCLKFS_OFS ... (SKL_MAX_CLK_CNT - 1):
-		return SKL_SCLK_FS;
-
-	default:
-		return -EINVAL;
-	}
-}
-
-static int skl_get_vbus_id(u32 index, u8 clk_type)
-{
-	switch (clk_type) {
-	case SKL_MCLK:
-		return index;
-
-	case SKL_SCLK:
-		return index - SKL_SCLK_OFS;
-
-	case SKL_SCLK_FS:
-		return index - SKL_SCLKFS_OFS;
-
-	default:
-		return -EINVAL;
-	}
-}
-
-static void skl_fill_clk_ipc(struct skl_clk_rate_cfg_table *rcfg, u8 clk_type)
-{
-	struct nhlt_fmt_cfg *fmt_cfg;
-	union skl_clk_ctrl_ipc *ipc;
-	struct wav_fmt *wfmt;
-
-	if (!rcfg)
-		return;
-
-	ipc = &rcfg->dma_ctl_ipc;
-	if (clk_type == SKL_SCLK_FS) {
-		fmt_cfg = (struct nhlt_fmt_cfg *)rcfg->config;
-		wfmt = &fmt_cfg->fmt_ext.fmt;
-
-		/* Remove TLV Header size */
-		ipc->sclk_fs.hdr.size = sizeof(struct skl_dmactrl_sclkfs_cfg) -
-						sizeof(struct skl_tlv_hdr);
-		ipc->sclk_fs.sampling_frequency = wfmt->samples_per_sec;
-		ipc->sclk_fs.bit_depth = wfmt->bits_per_sample;
-		ipc->sclk_fs.valid_bit_depth =
-			fmt_cfg->fmt_ext.sample.valid_bits_per_sample;
-		ipc->sclk_fs.number_of_channels = wfmt->channels;
-	} else {
-		ipc->mclk.hdr.type = DMA_CLK_CONTROLS;
-		/* Remove TLV Header size */
-		ipc->mclk.hdr.size = sizeof(struct skl_dmactrl_mclk_cfg) -
-						sizeof(struct skl_tlv_hdr);
-	}
-}
-
-/* Sends dma control IPC to turn the clock ON/OFF */
-static int skl_send_clk_dma_control(struct skl_dev *skl,
-				struct skl_clk_rate_cfg_table *rcfg,
-				u32 vbus_id, u8 clk_type,
-				bool enable)
-{
-	struct nhlt_specific_cfg *sp_cfg;
-	u32 i2s_config_size, node_id = 0;
-	struct nhlt_fmt_cfg *fmt_cfg;
-	union skl_clk_ctrl_ipc *ipc;
-	void *i2s_config = NULL;
-	u8 *data, size;
-	int ret;
-
-	if (!rcfg)
-		return -EIO;
-
-	ipc = &rcfg->dma_ctl_ipc;
-	fmt_cfg = (struct nhlt_fmt_cfg *)rcfg->config;
-	sp_cfg = &fmt_cfg->config;
-
-	if (clk_type == SKL_SCLK_FS) {
-		ipc->sclk_fs.hdr.type =
-			enable ? DMA_TRANSMITION_START : DMA_TRANSMITION_STOP;
-		data = (u8 *)&ipc->sclk_fs;
-		size = sizeof(struct skl_dmactrl_sclkfs_cfg);
-	} else {
-		/* 1 to enable mclk, 0 to enable sclk */
-		if (clk_type == SKL_SCLK)
-			ipc->mclk.mclk = 0;
-		else
-			ipc->mclk.mclk = 1;
-
-		ipc->mclk.keep_running = enable;
-		ipc->mclk.warm_up_over = enable;
-		ipc->mclk.clk_stop_over = !enable;
-		data = (u8 *)&ipc->mclk;
-		size = sizeof(struct skl_dmactrl_mclk_cfg);
-	}
-
-	i2s_config_size = sp_cfg->size + size;
-	i2s_config = kzalloc(i2s_config_size, GFP_KERNEL);
-	if (!i2s_config)
-		return -ENOMEM;
-
-	/* copy blob */
-	memcpy(i2s_config, sp_cfg->caps, sp_cfg->size);
-
-	/* copy additional dma controls information */
-	memcpy(i2s_config + sp_cfg->size, data, size);
-
-	node_id = ((SKL_DMA_I2S_LINK_INPUT_CLASS << 8) | (vbus_id << 4));
-	ret = skl_dsp_set_dma_control(skl, (u32 *)i2s_config,
-					i2s_config_size, node_id);
-	kfree(i2s_config);
-
-	return ret;
-}
-
-static struct skl_clk_rate_cfg_table *skl_get_rate_cfg(
-		struct skl_clk_rate_cfg_table *rcfg,
-				unsigned long rate)
-{
-	int i;
-
-	for (i = 0; (i < SKL_MAX_CLK_RATES) && rcfg[i].rate; i++) {
-		if (rcfg[i].rate == rate)
-			return &rcfg[i];
-	}
-
-	return NULL;
-}
-
-static int skl_clk_change_status(struct skl_clk *clkdev,
-				bool enable)
-{
-	struct skl_clk_rate_cfg_table *rcfg;
-	int vbus_id, clk_type;
-
-	clk_type = skl_get_clk_type(clkdev->id);
-	if (clk_type < 0)
-		return clk_type;
-
-	vbus_id = skl_get_vbus_id(clkdev->id, clk_type);
-	if (vbus_id < 0)
-		return vbus_id;
-
-	rcfg = skl_get_rate_cfg(clkdev->pdata->ssp_clks[clkdev->id].rate_cfg,
-						clkdev->rate);
-	if (!rcfg)
-		return -EINVAL;
-
-	return skl_send_clk_dma_control(clkdev->pdata->pvt_data, rcfg,
-					vbus_id, clk_type, enable);
-}
-
-static int skl_clk_prepare(struct clk_hw *hw)
-{
-	struct skl_clk *clkdev = to_skl_clk(hw);
-
-	return skl_clk_change_status(clkdev, true);
-}
-
-static void skl_clk_unprepare(struct clk_hw *hw)
-{
-	struct skl_clk *clkdev = to_skl_clk(hw);
-
-	skl_clk_change_status(clkdev, false);
-}
-
-static int skl_clk_set_rate(struct clk_hw *hw, unsigned long rate,
-					unsigned long parent_rate)
-{
-	struct skl_clk *clkdev = to_skl_clk(hw);
-	struct skl_clk_rate_cfg_table *rcfg;
-	int clk_type;
-
-	if (!rate)
-		return -EINVAL;
-
-	rcfg = skl_get_rate_cfg(clkdev->pdata->ssp_clks[clkdev->id].rate_cfg,
-							rate);
-	if (!rcfg)
-		return -EINVAL;
-
-	clk_type = skl_get_clk_type(clkdev->id);
-	if (clk_type < 0)
-		return clk_type;
-
-	skl_fill_clk_ipc(rcfg, clk_type);
-	clkdev->rate = rate;
-
-	return 0;
-}
-
-static unsigned long skl_clk_recalc_rate(struct clk_hw *hw,
-				unsigned long parent_rate)
-{
-	struct skl_clk *clkdev = to_skl_clk(hw);
-
-	if (clkdev->rate)
-		return clkdev->rate;
-
-	return 0;
-}
-
-/* Not supported by clk driver. Implemented to satisfy clk fw */
-static long skl_clk_round_rate(struct clk_hw *hw, unsigned long rate,
-			       unsigned long *parent_rate)
-{
-	return rate;
-}
-
-/*
- * prepare/unprepare are used instead of enable/disable as IPC will be sent
- * in non-atomic context.
- */
-static const struct clk_ops skl_clk_ops = {
-	.prepare = skl_clk_prepare,
-	.unprepare = skl_clk_unprepare,
-	.set_rate = skl_clk_set_rate,
-	.round_rate = skl_clk_round_rate,
-	.recalc_rate = skl_clk_recalc_rate,
-};
-
-static void unregister_parent_src_clk(struct skl_clk_parent *pclk,
-					unsigned int id)
-{
-	while (id--) {
-		clkdev_drop(pclk[id].lookup);
-		clk_hw_unregister_fixed_rate(pclk[id].hw);
-	}
-}
-
-static void unregister_src_clk(struct skl_clk_data *dclk)
-{
-	while (dclk->avail_clk_cnt--)
-		clkdev_drop(dclk->clk[dclk->avail_clk_cnt]->lookup);
-}
-
-static int skl_register_parent_clks(struct device *dev,
-			struct skl_clk_parent *parent,
-			struct skl_clk_parent_src *pclk)
-{
-	int i, ret;
-
-	for (i = 0; i < SKL_MAX_CLK_SRC; i++) {
-
-		/* Register Parent clock */
-		parent[i].hw = clk_hw_register_fixed_rate(dev, pclk[i].name,
-				pclk[i].parent_name, 0, pclk[i].rate);
-		if (IS_ERR(parent[i].hw)) {
-			ret = PTR_ERR(parent[i].hw);
-			goto err;
-		}
-
-		parent[i].lookup = clkdev_hw_create(parent[i].hw, pclk[i].name,
-									NULL);
-		if (!parent[i].lookup) {
-			clk_hw_unregister_fixed_rate(parent[i].hw);
-			ret = -ENOMEM;
-			goto err;
-		}
-	}
-
-	return 0;
-err:
-	unregister_parent_src_clk(parent, i);
-	return ret;
-}
-
-/* Assign fmt_config to clk_data */
-static struct skl_clk *register_skl_clk(struct device *dev,
-			struct skl_ssp_clk *clk,
-			struct skl_clk_pdata *clk_pdata, int id)
-{
-	struct clk_init_data init;
-	struct skl_clk *clkdev;
-	int ret;
-
-	clkdev = devm_kzalloc(dev, sizeof(*clkdev), GFP_KERNEL);
-	if (!clkdev)
-		return ERR_PTR(-ENOMEM);
-
-	init.name = clk->name;
-	init.ops = &skl_clk_ops;
-	init.flags = CLK_SET_RATE_GATE;
-	init.parent_names = &clk->parent_name;
-	init.num_parents = 1;
-	clkdev->hw.init = &init;
-	clkdev->pdata = clk_pdata;
-
-	clkdev->id = id;
-	ret = devm_clk_hw_register(dev, &clkdev->hw);
-	if (ret) {
-		clkdev = ERR_PTR(ret);
-		return clkdev;
-	}
-
-	clkdev->lookup = clkdev_hw_create(&clkdev->hw, init.name, NULL);
-	if (!clkdev->lookup)
-		clkdev = ERR_PTR(-ENOMEM);
-
-	return clkdev;
-}
-
-static int skl_clk_dev_probe(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	struct device *parent_dev = dev->parent;
-	struct skl_clk_parent_src *parent_clks;
-	struct skl_clk_pdata *clk_pdata;
-	struct skl_clk_data *data;
-	struct skl_ssp_clk *clks;
-	int ret, i;
-
-	clk_pdata = dev_get_platdata(&pdev->dev);
-	parent_clks = clk_pdata->parent_clks;
-	clks = clk_pdata->ssp_clks;
-	if (!parent_clks || !clks)
-		return -EIO;
-
-	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	/* Register Parent clock */
-	ret = skl_register_parent_clks(parent_dev, data->parent, parent_clks);
-	if (ret < 0)
-		return ret;
-
-	for (i = 0; i < clk_pdata->num_clks; i++) {
-		/*
-		 * Only register valid clocks
-		 * i.e. for which nhlt entry is present.
-		 */
-		if (clks[i].rate_cfg[0].rate == 0)
-			continue;
-
-		data->clk[data->avail_clk_cnt] = register_skl_clk(dev,
-				&clks[i], clk_pdata, i);
-
-		if (IS_ERR(data->clk[data->avail_clk_cnt])) {
-			ret = PTR_ERR(data->clk[data->avail_clk_cnt]);
-			goto err_unreg_skl_clk;
-		}
-
-		data->avail_clk_cnt++;
-	}
-
-	platform_set_drvdata(pdev, data);
-
-	return 0;
-
-err_unreg_skl_clk:
-	unregister_src_clk(data);
-	unregister_parent_src_clk(data->parent, SKL_MAX_CLK_SRC);
-
-	return ret;
-}
-
-static void skl_clk_dev_remove(struct platform_device *pdev)
-{
-	struct skl_clk_data *data;
-
-	data = platform_get_drvdata(pdev);
-	unregister_src_clk(data);
-	unregister_parent_src_clk(data->parent, SKL_MAX_CLK_SRC);
-}
-
-static struct platform_driver skl_clk_driver = {
-	.driver = {
-		.name = "skl-ssp-clk",
-	},
-	.probe = skl_clk_dev_probe,
-	.remove_new = skl_clk_dev_remove,
-};
-
-module_platform_driver(skl_clk_driver);
-
-MODULE_DESCRIPTION("Skylake clock driver");
-MODULE_AUTHOR("Jaikrishna Nemallapudi <jaikrishnax.nemallapudi@intel.com>");
-MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:skl-ssp-clk");