From f70575805708cabdedea7498aaa3f710fde4d920 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 03:29:01 +0000
Subject: [PATCH] add lvds1024*800
---
kernel/sound/soc/pxa/mmp-sspa.c | 467 +++++++++++++++++++++++++++++++++++-----------------------
1 files changed, 283 insertions(+), 184 deletions(-)
diff --git a/kernel/sound/soc/pxa/mmp-sspa.c b/kernel/sound/soc/pxa/mmp-sspa.c
index 12d4513..4255851 100644
--- a/kernel/sound/soc/pxa/mmp-sspa.c
+++ b/kernel/sound/soc/pxa/mmp-sspa.c
@@ -1,23 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* linux/sound/soc/pxa/mmp-sspa.c
* Base on pxa2xx-ssp.c
*
* Copyright (C) 2011 Marvell International Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
*/
#include <linux/init.h>
#include <linux/module.h>
@@ -25,9 +11,9 @@
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/slab.h>
-#include <linux/pxa2xx_ssp.h>
#include <linux/io.h>
#include <linux/dmaengine.h>
+#include <linux/pm_runtime.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -42,71 +28,65 @@
* SSPA audio private data
*/
struct sspa_priv {
- struct ssp_device *sspa;
- struct snd_dmaengine_dai_dma_data *dma_params;
+ void __iomem *tx_base;
+ void __iomem *rx_base;
+
+ struct snd_dmaengine_dai_dma_data playback_dma_data;
+ struct snd_dmaengine_dai_dma_data capture_dma_data;
+ struct clk *clk;
struct clk *audio_clk;
struct clk *sysclk;
- int dai_fmt;
+
int running_cnt;
+ u32 sp;
+ u32 ctrl;
};
-static void mmp_sspa_write_reg(struct ssp_device *sspa, u32 reg, u32 val)
+static void mmp_sspa_tx_enable(struct sspa_priv *sspa)
{
- __raw_writel(val, sspa->mmio_base + reg);
-}
+ unsigned int sspa_sp = sspa->sp;
-static u32 mmp_sspa_read_reg(struct ssp_device *sspa, u32 reg)
-{
- return __raw_readl(sspa->mmio_base + reg);
-}
-
-static void mmp_sspa_tx_enable(struct ssp_device *sspa)
-{
- unsigned int sspa_sp;
-
- sspa_sp = mmp_sspa_read_reg(sspa, SSPA_TXSP);
+ sspa_sp &= ~SSPA_SP_MSL;
sspa_sp |= SSPA_SP_S_EN;
sspa_sp |= SSPA_SP_WEN;
- mmp_sspa_write_reg(sspa, SSPA_TXSP, sspa_sp);
+ __raw_writel(sspa_sp, sspa->tx_base + SSPA_SP);
}
-static void mmp_sspa_tx_disable(struct ssp_device *sspa)
+static void mmp_sspa_tx_disable(struct sspa_priv *sspa)
{
- unsigned int sspa_sp;
+ unsigned int sspa_sp = sspa->sp;
- sspa_sp = mmp_sspa_read_reg(sspa, SSPA_TXSP);
+ sspa_sp &= ~SSPA_SP_MSL;
sspa_sp &= ~SSPA_SP_S_EN;
sspa_sp |= SSPA_SP_WEN;
- mmp_sspa_write_reg(sspa, SSPA_TXSP, sspa_sp);
+ __raw_writel(sspa_sp, sspa->tx_base + SSPA_SP);
}
-static void mmp_sspa_rx_enable(struct ssp_device *sspa)
+static void mmp_sspa_rx_enable(struct sspa_priv *sspa)
{
- unsigned int sspa_sp;
+ unsigned int sspa_sp = sspa->sp;
- sspa_sp = mmp_sspa_read_reg(sspa, SSPA_RXSP);
sspa_sp |= SSPA_SP_S_EN;
sspa_sp |= SSPA_SP_WEN;
- mmp_sspa_write_reg(sspa, SSPA_RXSP, sspa_sp);
+ __raw_writel(sspa_sp, sspa->rx_base + SSPA_SP);
}
-static void mmp_sspa_rx_disable(struct ssp_device *sspa)
+static void mmp_sspa_rx_disable(struct sspa_priv *sspa)
{
- unsigned int sspa_sp;
+ unsigned int sspa_sp = sspa->sp;
- sspa_sp = mmp_sspa_read_reg(sspa, SSPA_RXSP);
sspa_sp &= ~SSPA_SP_S_EN;
sspa_sp |= SSPA_SP_WEN;
- mmp_sspa_write_reg(sspa, SSPA_RXSP, sspa_sp);
+ __raw_writel(sspa_sp, sspa->rx_base + SSPA_SP);
}
static int mmp_sspa_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct sspa_priv *priv = snd_soc_dai_get_drvdata(dai);
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(dai);
- clk_enable(priv->sysclk);
- clk_enable(priv->sspa->clk);
+ clk_prepare_enable(sspa->sysclk);
+ clk_prepare_enable(sspa->clk);
return 0;
}
@@ -114,11 +94,10 @@
static void mmp_sspa_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct sspa_priv *priv = snd_soc_dai_get_drvdata(dai);
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(dai);
- clk_disable(priv->sspa->clk);
- clk_disable(priv->sysclk);
-
+ clk_disable_unprepare(sspa->clk);
+ clk_disable_unprepare(sspa->sysclk);
}
/*
@@ -127,12 +106,16 @@
static int mmp_sspa_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
int clk_id, unsigned int freq, int dir)
{
- struct sspa_priv *priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(cpu_dai);
+ struct device *dev = cpu_dai->component->dev;
int ret = 0;
+
+ if (dev->of_node)
+ return -ENOTSUPP;
switch (clk_id) {
case MMP_SSPA_CLK_AUDIO:
- ret = clk_set_rate(priv->audio_clk, freq);
+ ret = clk_set_rate(sspa->audio_clk, freq);
if (ret)
return ret;
break;
@@ -151,17 +134,21 @@
int source, unsigned int freq_in,
unsigned int freq_out)
{
- struct sspa_priv *priv = snd_soc_dai_get_drvdata(cpu_dai);
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(cpu_dai);
+ struct device *dev = cpu_dai->component->dev;
int ret = 0;
+
+ if (dev->of_node)
+ return -ENOTSUPP;
switch (pll_id) {
case MMP_SYSCLK:
- ret = clk_set_rate(priv->sysclk, freq_out);
+ ret = clk_set_rate(sspa->sysclk, freq_out);
if (ret)
return ret;
break;
case MMP_SSPA_CLK:
- ret = clk_set_rate(priv->sspa->clk, freq_out);
+ ret = clk_set_rate(sspa->clk, freq_out);
if (ret)
return ret;
break;
@@ -173,36 +160,20 @@
}
/*
- * Set up the sspa dai format. The sspa port must be inactive
- * before calling this function as the physical
- * interface format is changed.
+ * Set up the sspa dai format.
*/
static int mmp_sspa_set_dai_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
- struct sspa_priv *sspa_priv = snd_soc_dai_get_drvdata(cpu_dai);
- struct ssp_device *sspa = sspa_priv->sspa;
- u32 sspa_sp, sspa_ctrl;
-
- /* check if we need to change anything at all */
- if (sspa_priv->dai_fmt == fmt)
- return 0;
-
- /* we can only change the settings if the port is not in use */
- if ((mmp_sspa_read_reg(sspa, SSPA_TXSP) & SSPA_SP_S_EN) ||
- (mmp_sspa_read_reg(sspa, SSPA_RXSP) & SSPA_SP_S_EN)) {
- dev_err(&sspa->pdev->dev,
- "can't change hardware dai format: stream is in use\n");
- return -EINVAL;
- }
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(cpu_dai);
/* reset port settings */
- sspa_sp = SSPA_SP_WEN | SSPA_SP_S_RST | SSPA_SP_FFLUSH;
- sspa_ctrl = 0;
+ sspa->sp = SSPA_SP_WEN | SSPA_SP_S_RST | SSPA_SP_FFLUSH;
+ sspa->ctrl = 0;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBS_CFS:
- sspa_sp |= SSPA_SP_MSL;
+ sspa->sp |= SSPA_SP_MSL;
break;
case SND_SOC_DAIFMT_CBM_CFM:
break;
@@ -212,7 +183,7 @@
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
- sspa_sp |= SSPA_SP_FSP;
+ sspa->sp |= SSPA_SP_FSP;
break;
default:
return -EINVAL;
@@ -220,39 +191,16 @@
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
- sspa_sp |= SSPA_TXSP_FPER(63);
- sspa_sp |= SSPA_SP_FWID(31);
- sspa_ctrl |= SSPA_CTL_XDATDLY(1);
+ sspa->ctrl |= SSPA_CTL_XDATDLY(1);
break;
default:
return -EINVAL;
}
- mmp_sspa_write_reg(sspa, SSPA_TXSP, sspa_sp);
- mmp_sspa_write_reg(sspa, SSPA_RXSP, sspa_sp);
-
- sspa_sp &= ~(SSPA_SP_S_RST | SSPA_SP_FFLUSH);
- mmp_sspa_write_reg(sspa, SSPA_TXSP, sspa_sp);
- mmp_sspa_write_reg(sspa, SSPA_RXSP, sspa_sp);
-
- /*
- * FIXME: hw issue, for the tx serial port,
- * can not config the master/slave mode;
- * so must clean this bit.
- * The master/slave mode has been set in the
- * rx port.
- */
- sspa_sp &= ~SSPA_SP_MSL;
- mmp_sspa_write_reg(sspa, SSPA_TXSP, sspa_sp);
-
- mmp_sspa_write_reg(sspa, SSPA_TXCTL, sspa_ctrl);
- mmp_sspa_write_reg(sspa, SSPA_RXCTL, sspa_ctrl);
-
/* Since we are configuring the timings for the format by hand
* we have to defer some things until hw_params() where we
* know parameters like the sample size.
*/
- sspa_priv->dai_fmt = fmt;
return 0;
}
@@ -264,65 +212,71 @@
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct sspa_priv *sspa_priv = snd_soc_dai_get_drvdata(dai);
- struct ssp_device *sspa = sspa_priv->sspa;
- struct snd_dmaengine_dai_dma_data *dma_params;
- u32 sspa_ctrl;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- sspa_ctrl = mmp_sspa_read_reg(sspa, SSPA_TXCTL);
- else
- sspa_ctrl = mmp_sspa_read_reg(sspa, SSPA_RXCTL);
-
- sspa_ctrl &= ~SSPA_CTL_XFRLEN1_MASK;
- sspa_ctrl |= SSPA_CTL_XFRLEN1(params_channels(params) - 1);
- sspa_ctrl &= ~SSPA_CTL_XWDLEN1_MASK;
- sspa_ctrl |= SSPA_CTL_XWDLEN1(SSPA_CTL_32_BITS);
- sspa_ctrl &= ~SSPA_CTL_XSSZ1_MASK;
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(dai);
+ struct device *dev = dai->component->dev;
+ u32 sspa_ctrl = sspa->ctrl;
+ int bits;
+ int bitval;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
- sspa_ctrl |= SSPA_CTL_XSSZ1(SSPA_CTL_8_BITS);
+ bits = 8;
+ bitval = SSPA_CTL_8_BITS;
break;
case SNDRV_PCM_FORMAT_S16_LE:
- sspa_ctrl |= SSPA_CTL_XSSZ1(SSPA_CTL_16_BITS);
- break;
- case SNDRV_PCM_FORMAT_S20_3LE:
- sspa_ctrl |= SSPA_CTL_XSSZ1(SSPA_CTL_20_BITS);
+ bits = 16;
+ bitval = SSPA_CTL_16_BITS;
break;
case SNDRV_PCM_FORMAT_S24_3LE:
- sspa_ctrl |= SSPA_CTL_XSSZ1(SSPA_CTL_24_BITS);
+ bits = 24;
+ bitval = SSPA_CTL_24_BITS;
break;
case SNDRV_PCM_FORMAT_S32_LE:
- sspa_ctrl |= SSPA_CTL_XSSZ1(SSPA_CTL_32_BITS);
+ bits = 32;
+ bitval = SSPA_CTL_32_BITS;
break;
default:
return -EINVAL;
}
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- mmp_sspa_write_reg(sspa, SSPA_TXCTL, sspa_ctrl);
- mmp_sspa_write_reg(sspa, SSPA_TXFIFO_LL, 0x1);
- } else {
- mmp_sspa_write_reg(sspa, SSPA_RXCTL, sspa_ctrl);
- mmp_sspa_write_reg(sspa, SSPA_RXFIFO_UL, 0x0);
+ if (dev->of_node || params_channels(params) == 2)
+ sspa_ctrl |= SSPA_CTL_XPH;
+
+ sspa_ctrl &= ~SSPA_CTL_XWDLEN1_MASK;
+ sspa_ctrl |= SSPA_CTL_XWDLEN1(bitval);
+
+ sspa_ctrl &= ~SSPA_CTL_XSSZ1_MASK;
+ sspa_ctrl |= SSPA_CTL_XSSZ1(bitval);
+
+ sspa_ctrl &= ~SSPA_CTL_XSSZ2_MASK;
+ sspa_ctrl |= SSPA_CTL_XSSZ2(bitval);
+
+ sspa->sp &= ~SSPA_SP_FWID_MASK;
+ sspa->sp |= SSPA_SP_FWID(bits - 1);
+
+ sspa->sp &= ~SSPA_TXSP_FPER_MASK;
+ sspa->sp |= SSPA_TXSP_FPER(bits * 2 - 1);
+
+ if (dev->of_node) {
+ clk_set_rate(sspa->clk, params_rate(params) *
+ params_channels(params) * bits);
}
- dma_params = &sspa_priv->dma_params[substream->stream];
- dma_params->addr = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
- (sspa->phys_base + SSPA_TXD) :
- (sspa->phys_base + SSPA_RXD);
- snd_soc_dai_set_dma_data(cpu_dai, substream, dma_params);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ __raw_writel(sspa_ctrl, sspa->tx_base + SSPA_CTL);
+ __raw_writel(0x1, sspa->tx_base + SSPA_FIFO_UL);
+ } else {
+ __raw_writel(sspa_ctrl, sspa->rx_base + SSPA_CTL);
+ __raw_writel(0x0, sspa->rx_base + SSPA_FIFO_UL);
+ }
+
return 0;
}
static int mmp_sspa_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
- struct sspa_priv *sspa_priv = snd_soc_dai_get_drvdata(dai);
- struct ssp_device *sspa = sspa_priv->sspa;
+ struct sspa_priv *sspa = snd_soc_dai_get_drvdata(dai);
int ret = 0;
switch (cmd) {
@@ -335,25 +289,25 @@
* enabled or not; if has been enabled by another
* stream, do not enable again.
*/
- if (!sspa_priv->running_cnt)
+ if (!sspa->running_cnt)
mmp_sspa_rx_enable(sspa);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
mmp_sspa_tx_enable(sspa);
- sspa_priv->running_cnt++;
+ sspa->running_cnt++;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- sspa_priv->running_cnt--;
+ sspa->running_cnt--;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
mmp_sspa_tx_disable(sspa);
/* have no capture stream, disable rx port */
- if (!sspa_priv->running_cnt)
+ if (!sspa->running_cnt)
mmp_sspa_rx_disable(sspa);
break;
@@ -366,17 +320,20 @@
static int mmp_sspa_probe(struct snd_soc_dai *dai)
{
- struct sspa_priv *priv = dev_get_drvdata(dai->dev);
+ struct sspa_priv *sspa = dev_get_drvdata(dai->dev);
- snd_soc_dai_set_drvdata(dai, priv);
+ snd_soc_dai_init_dma_data(dai,
+ &sspa->playback_dma_data,
+ &sspa->capture_dma_data);
+
+ snd_soc_dai_set_drvdata(dai, sspa);
return 0;
-
}
#define MMP_SSPA_RATES SNDRV_PCM_RATE_8000_192000
#define MMP_SSPA_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S16_LE | \
- SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S24_3LE | \
SNDRV_PCM_FMTBIT_S32_LE)
static const struct snd_soc_dai_ops mmp_sspa_dai_ops = {
@@ -406,70 +363,212 @@
.ops = &mmp_sspa_dai_ops,
};
+#define MMP_PCM_INFO (SNDRV_PCM_INFO_MMAP | \
+ SNDRV_PCM_INFO_MMAP_VALID | \
+ SNDRV_PCM_INFO_INTERLEAVED | \
+ SNDRV_PCM_INFO_PAUSE | \
+ SNDRV_PCM_INFO_RESUME | \
+ SNDRV_PCM_INFO_NO_PERIOD_WAKEUP)
+
+static const struct snd_pcm_hardware mmp_pcm_hardware[] = {
+ {
+ .info = MMP_PCM_INFO,
+ .period_bytes_min = 1024,
+ .period_bytes_max = 2048,
+ .periods_min = 2,
+ .periods_max = 32,
+ .buffer_bytes_max = 4096,
+ .fifo_size = 32,
+ },
+ {
+ .info = MMP_PCM_INFO,
+ .period_bytes_min = 1024,
+ .period_bytes_max = 2048,
+ .periods_min = 2,
+ .periods_max = 32,
+ .buffer_bytes_max = 4096,
+ .fifo_size = 32,
+ },
+};
+
+static const struct snd_dmaengine_pcm_config mmp_pcm_config = {
+ .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
+ .pcm_hardware = mmp_pcm_hardware,
+ .prealloc_buffer_size = 4096,
+};
+
+static int mmp_pcm_mmap(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ return remap_pfn_range(vma, vma->vm_start,
+ substream->dma_buffer.addr >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot);
+}
+
+static int mmp_sspa_open(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct sspa_priv *sspa = snd_soc_component_get_drvdata(component);
+
+ pm_runtime_get_sync(component->dev);
+
+ /* we can only change the settings if the port is not in use */
+ if ((__raw_readl(sspa->tx_base + SSPA_SP) & SSPA_SP_S_EN) ||
+ (__raw_readl(sspa->rx_base + SSPA_SP) & SSPA_SP_S_EN)) {
+ dev_err(component->dev,
+ "can't change hardware dai format: stream is in use\n");
+ return -EBUSY;
+ }
+
+ __raw_writel(sspa->sp, sspa->tx_base + SSPA_SP);
+ __raw_writel(sspa->sp, sspa->rx_base + SSPA_SP);
+
+ sspa->sp &= ~(SSPA_SP_S_RST | SSPA_SP_FFLUSH);
+ __raw_writel(sspa->sp, sspa->tx_base + SSPA_SP);
+ __raw_writel(sspa->sp, sspa->rx_base + SSPA_SP);
+
+ /*
+ * FIXME: hw issue, for the tx serial port,
+ * can not config the master/slave mode;
+ * so must clean this bit.
+ * The master/slave mode has been set in the
+ * rx port.
+ */
+ __raw_writel(sspa->sp & ~SSPA_SP_MSL, sspa->tx_base + SSPA_SP);
+
+ __raw_writel(sspa->ctrl, sspa->tx_base + SSPA_CTL);
+ __raw_writel(sspa->ctrl, sspa->rx_base + SSPA_CTL);
+
+ return 0;
+}
+
+static int mmp_sspa_close(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ pm_runtime_put_sync(component->dev);
+ return 0;
+}
+
static const struct snd_soc_component_driver mmp_sspa_component = {
.name = "mmp-sspa",
+ .mmap = mmp_pcm_mmap,
+ .open = mmp_sspa_open,
+ .close = mmp_sspa_close,
};
static int asoc_mmp_sspa_probe(struct platform_device *pdev)
{
- struct sspa_priv *priv;
- struct resource *res;
+ struct sspa_priv *sspa;
+ int ret;
- priv = devm_kzalloc(&pdev->dev,
+ sspa = devm_kzalloc(&pdev->dev,
sizeof(struct sspa_priv), GFP_KERNEL);
- if (!priv)
+ if (!sspa)
return -ENOMEM;
- priv->sspa = devm_kzalloc(&pdev->dev,
- sizeof(struct ssp_device), GFP_KERNEL);
- if (priv->sspa == NULL)
- return -ENOMEM;
+ if (pdev->dev.of_node) {
+ sspa->rx_base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(sspa->rx_base))
+ return PTR_ERR(sspa->rx_base);
- priv->dma_params = devm_kcalloc(&pdev->dev,
- 2, sizeof(struct snd_dmaengine_dai_dma_data),
- GFP_KERNEL);
- if (priv->dma_params == NULL)
- return -ENOMEM;
+ sspa->tx_base = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(sspa->tx_base))
+ return PTR_ERR(sspa->tx_base);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- priv->sspa->mmio_base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(priv->sspa->mmio_base))
- return PTR_ERR(priv->sspa->mmio_base);
+ sspa->clk = devm_clk_get(&pdev->dev, "bitclk");
+ if (IS_ERR(sspa->clk))
+ return PTR_ERR(sspa->clk);
- priv->sspa->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(priv->sspa->clk))
- return PTR_ERR(priv->sspa->clk);
+ sspa->audio_clk = devm_clk_get(&pdev->dev, "audio");
+ if (IS_ERR(sspa->audio_clk))
+ return PTR_ERR(sspa->audio_clk);
+ } else {
+ struct resource *res;
- priv->audio_clk = clk_get(NULL, "mmp-audio");
- if (IS_ERR(priv->audio_clk))
- return PTR_ERR(priv->audio_clk);
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL)
+ return -ENODEV;
- priv->sysclk = clk_get(NULL, "mmp-sysclk");
- if (IS_ERR(priv->sysclk)) {
- clk_put(priv->audio_clk);
- return PTR_ERR(priv->sysclk);
+ sspa->rx_base = devm_ioremap(&pdev->dev, res->start, 0x30);
+ if (!sspa->rx_base)
+ return -ENOMEM;
+
+ sspa->tx_base = devm_ioremap(&pdev->dev,
+ res->start + 0x80, 0x30);
+ if (!sspa->tx_base)
+ return -ENOMEM;
+
+ sspa->clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(sspa->clk))
+ return PTR_ERR(sspa->clk);
+
+ sspa->audio_clk = clk_get(NULL, "mmp-audio");
+ if (IS_ERR(sspa->audio_clk))
+ return PTR_ERR(sspa->audio_clk);
+
+ sspa->sysclk = clk_get(NULL, "mmp-sysclk");
+ if (IS_ERR(sspa->sysclk)) {
+ clk_put(sspa->audio_clk);
+ return PTR_ERR(sspa->sysclk);
+ }
}
- clk_enable(priv->audio_clk);
- priv->dai_fmt = (unsigned int) -1;
- platform_set_drvdata(pdev, priv);
+ platform_set_drvdata(pdev, sspa);
- return devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component,
- &mmp_sspa_dai, 1);
+ sspa->playback_dma_data.maxburst = 4;
+ sspa->capture_dma_data.maxburst = 4;
+ /* You know, these addresses are actually ignored. */
+ sspa->capture_dma_data.addr = SSPA_D;
+ sspa->playback_dma_data.addr = 0x80 + SSPA_D;
+
+ if (pdev->dev.of_node) {
+ ret = devm_snd_dmaengine_pcm_register(&pdev->dev,
+ &mmp_pcm_config, 0);
+ if (ret)
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component,
+ &mmp_sspa_dai, 1);
+ if (ret)
+ return ret;
+
+ pm_runtime_enable(&pdev->dev);
+ clk_prepare_enable(sspa->audio_clk);
+
+ return 0;
}
static int asoc_mmp_sspa_remove(struct platform_device *pdev)
{
- struct sspa_priv *priv = platform_get_drvdata(pdev);
+ struct sspa_priv *sspa = platform_get_drvdata(pdev);
- clk_disable(priv->audio_clk);
- clk_put(priv->audio_clk);
- clk_put(priv->sysclk);
+ clk_disable_unprepare(sspa->audio_clk);
+ pm_runtime_disable(&pdev->dev);
+
+ if (pdev->dev.of_node)
+ return 0;
+
+ clk_put(sspa->audio_clk);
+ clk_put(sspa->sysclk);
return 0;
}
+
+#ifdef CONFIG_OF
+static const struct of_device_id mmp_sspa_of_match[] = {
+ { .compatible = "marvell,mmp-sspa" },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, mmp_sspa_of_match);
+#endif
static struct platform_driver asoc_mmp_sspa_driver = {
.driver = {
.name = "mmp-sspa-dai",
+ .of_match_table = of_match_ptr(mmp_sspa_of_match),
},
.probe = asoc_mmp_sspa_probe,
.remove = asoc_mmp_sspa_remove,
--
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