@@ -16115,6 +16115,12 @@ F: Documentation/ABI/*/sysfs-driver-hid-roccat*
F: drivers/hid/hid-roccat*
F: include/linux/hid-roccat*
+ROCKCHIP I2S TDM DRIVER
+M: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
+L: linux-rockchip@lists.infradead.org
+S: Maintained
+F: sound/soc/rockchip/rockchip_i2s_tdm.*
+
ROCKCHIP ISP V1 DRIVER
M: Helen Koike <helen.koike@collabora.com>
M: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
@@ -16,6 +16,17 @@ config SND_SOC_ROCKCHIP_I2S
Rockchip I2S device. The device supports upto maximum of
8 channels each for play and record.
+config SND_SOC_ROCKCHIP_I2S_TDM
+ tristate "Rockchip I2S/TDM Device Driver"
+ depends on HAVE_CLK && SND_SOC_ROCKCHIP
+ select SND_SOC_GENERIC_DMAENGINE_PCM
+ help
+ Say Y or M if you want to add support for the I2S/TDM driver for
+ Rockchip I2S/TDM devices, found in Rockchip SoCs. These devices
+ interface between the AHB bus and the I2S bus, and support up to a
+ maximum of 8 channels each for playback and recording.
+
+
config SND_SOC_ROCKCHIP_PDM
tristate "Rockchip PDM Controller Driver"
depends on HAVE_CLK && SND_SOC_ROCKCHIP
@@ -1,11 +1,13 @@
# SPDX-License-Identifier: GPL-2.0
# ROCKCHIP Platform Support
snd-soc-rockchip-i2s-objs := rockchip_i2s.o
+snd-soc-rockchip-i2s-tdm-objs := rockchip_i2s_tdm.o
snd-soc-rockchip-pcm-objs := rockchip_pcm.o
snd-soc-rockchip-pdm-objs := rockchip_pdm.o
snd-soc-rockchip-spdif-objs := rockchip_spdif.o
obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-rockchip-i2s.o snd-soc-rockchip-pcm.o
+obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S_TDM) += snd-soc-rockchip-i2s-tdm.o
obj-$(CONFIG_SND_SOC_ROCKCHIP_PDM) += snd-soc-rockchip-pdm.o
obj-$(CONFIG_SND_SOC_ROCKCHIP_SPDIF) += snd-soc-rockchip-spdif.o
new file mode 100644
@@ -0,0 +1,1832 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ALSA SoC Audio Layer - Rockchip I2S/TDM Controller driver
+ *
+ * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
+ * Author: Sugar Zhang <sugar.zhang@rock-chips.com>
+ * Author: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/spinlock.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "rockchip_i2s_tdm.h"
+
+#define DRV_NAME "rockchip-i2s-tdm"
+
+#define DEFAULT_MCLK_FS 256
+#define CH_GRP_MAX 4 /* The max channel 8 / 2 */
+#define MULTIPLEX_CH_MAX 10
+#define CLK_PPM_MIN -1000
+#define CLK_PPM_MAX 1000
+
+#define TRCM_TXRX 0
+#define TRCM_TX 1
+#define TRCM_RX 2
+
+struct txrx_config {
+ u32 addr;
+ u32 reg;
+ u32 txonly;
+ u32 rxonly;
+};
+
+struct rk_i2s_soc_data {
+ u32 softrst_offset;
+ u32 grf_reg_offset;
+ u32 grf_shift;
+ int config_count;
+ const struct txrx_config *configs;
+ int (*init)(struct device *dev, u32 addr);
+};
+
+struct rk_i2s_tdm_dev {
+ struct device *dev;
+ struct clk *hclk;
+ struct clk *mclk_tx;
+ struct clk *mclk_rx;
+ /* The mclk_tx_src is parent of mclk_tx */
+ struct clk *mclk_tx_src;
+ /* The mclk_rx_src is parent of mclk_rx */
+ struct clk *mclk_rx_src;
+ /*
+ * The mclk_root0 and mclk_root1 are root parent and supplies for
+ * the different FS.
+ *
+ * e.g:
+ * mclk_root0 is VPLL0, used for FS=48000Hz
+ * mclk_root1 is VPLL1, used for FS=44100Hz
+ */
+ struct clk *mclk_root0;
+ struct clk *mclk_root1;
+ struct regmap *regmap;
+ struct regmap *grf;
+ struct snd_dmaengine_dai_dma_data capture_dma_data;
+ struct snd_dmaengine_dai_dma_data playback_dma_data;
+ struct reset_control *tx_reset;
+ struct reset_control *rx_reset;
+ struct rk_i2s_soc_data *soc_data;
+ void __iomem *cru_base;
+ bool is_master_mode;
+ bool io_multiplex;
+ bool mclk_calibrate;
+ bool tdm_mode;
+ bool tdm_fsync_half_frame;
+ unsigned int mclk_rx_freq;
+ unsigned int mclk_tx_freq;
+ unsigned int mclk_root0_freq;
+ unsigned int mclk_root1_freq;
+ unsigned int mclk_root0_initial_freq;
+ unsigned int mclk_root1_initial_freq;
+ unsigned int frame_width;
+ unsigned int clk_trcm;
+ unsigned int i2s_sdis[CH_GRP_MAX];
+ unsigned int i2s_sdos[CH_GRP_MAX];
+ int clk_ppm;
+ int tx_reset_id;
+ int rx_reset_id;
+ atomic_t refcount;
+ spinlock_t lock; /* xfer lock */
+ bool has_playback;
+ bool has_capture;
+};
+
+static int to_ch_num(unsigned int val)
+{
+ switch (val) {
+ case I2S_CHN_4:
+ return 4;
+ case I2S_CHN_6:
+ return 6;
+ case I2S_CHN_8:
+ return 8;
+ default:
+ return 2;
+ }
+}
+
+static void i2s_tdm_disable_unprepare_mclk(struct rk_i2s_tdm_dev *i2s_tdm)
+{
+ clk_disable_unprepare(i2s_tdm->mclk_tx);
+ clk_disable_unprepare(i2s_tdm->mclk_rx);
+ if (i2s_tdm->mclk_calibrate) {
+ clk_disable_unprepare(i2s_tdm->mclk_tx_src);
+ clk_disable_unprepare(i2s_tdm->mclk_rx_src);
+ clk_disable_unprepare(i2s_tdm->mclk_root0);
+ clk_disable_unprepare(i2s_tdm->mclk_root1);
+ }
+}
+
+/**
+ * i2s_tdm_prepare_enable_mclk - prepare to enable all mclks, disable them on
+ * failure.
+ * @i2s_tdm: rk_i2s_tdm_dev struct
+ *
+ * This function attempts to enable all mclk clocks, but cleans up after
+ * itself on failure. Guarantees to balance its calls.
+ *
+ * Returns success (0) or negative errno.
+ */
+static int i2s_tdm_prepare_enable_mclk(struct rk_i2s_tdm_dev *i2s_tdm)
+{
+ int ret = 0;
+
+ ret = clk_prepare_enable(i2s_tdm->mclk_tx);
+ if (ret)
+ goto err_mclk_tx;
+ ret = clk_prepare_enable(i2s_tdm->mclk_rx);
+ if (ret)
+ goto err_mclk_rx;
+ if (i2s_tdm->mclk_calibrate) {
+ ret = clk_prepare_enable(i2s_tdm->mclk_tx_src);
+ if (ret)
+ goto err_mclk_rx;
+ ret = clk_prepare_enable(i2s_tdm->mclk_rx_src);
+ if (ret)
+ goto err_mclk_rx_src;
+ ret = clk_prepare_enable(i2s_tdm->mclk_root0);
+ if (ret)
+ goto err_mclk_root0;
+ ret = clk_prepare_enable(i2s_tdm->mclk_root1);
+ if (ret)
+ goto err_mclk_root1;
+ }
+
+ return 0;
+
+err_mclk_root1:
+ clk_disable_unprepare(i2s_tdm->mclk_root0);
+err_mclk_root0:
+ clk_disable_unprepare(i2s_tdm->mclk_rx_src);
+err_mclk_rx_src:
+ clk_disable_unprepare(i2s_tdm->mclk_tx_src);
+err_mclk_rx:
+ clk_disable_unprepare(i2s_tdm->mclk_tx);
+err_mclk_tx:
+ return ret;
+}
+
+static int __maybe_unused i2s_tdm_runtime_suspend(struct device *dev)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = dev_get_drvdata(dev);
+
+ regcache_cache_only(i2s_tdm->regmap, true);
+ i2s_tdm_disable_unprepare_mclk(i2s_tdm);
+
+ clk_disable_unprepare(i2s_tdm->hclk);
+
+ return 0;
+}
+
+static int __maybe_unused i2s_tdm_runtime_resume(struct device *dev)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = dev_get_drvdata(dev);
+ int ret;
+
+ ret = clk_prepare_enable(i2s_tdm->hclk);
+ if (ret)
+ goto err_hclk;
+
+ ret = i2s_tdm_prepare_enable_mclk(i2s_tdm);
+ if (ret)
+ goto err_mclk;
+
+ regcache_cache_only(i2s_tdm->regmap, false);
+ regcache_mark_dirty(i2s_tdm->regmap);
+
+ ret = regcache_sync(i2s_tdm->regmap);
+ if (ret)
+ goto err_regcache;
+
+ return 0;
+
+err_regcache:
+ i2s_tdm_disable_unprepare_mclk(i2s_tdm);
+err_mclk:
+ clk_disable_unprepare(i2s_tdm->hclk);
+err_hclk:
+ return ret;
+}
+
+static inline struct rk_i2s_tdm_dev *to_info(struct snd_soc_dai *dai)
+{
+ return snd_soc_dai_get_drvdata(dai);
+}
+
+static void rockchip_snd_xfer_reset_assert(struct rk_i2s_tdm_dev *i2s_tdm,
+ int tx_bank, int tx_offset,
+ int rx_bank, int rx_offset)
+{
+ void __iomem *cru_reset;
+ unsigned long flags;
+
+ cru_reset = i2s_tdm->cru_base + i2s_tdm->soc_data->softrst_offset;
+
+ if (tx_bank == rx_bank) {
+ writel(BIT(tx_offset) | BIT(rx_offset) |
+ (BIT(tx_offset) << 16) | (BIT(rx_offset) << 16),
+ cru_reset + (tx_bank * 4));
+ } else {
+ local_irq_save(flags);
+ writel(BIT(tx_offset) | (BIT(tx_offset) << 16),
+ cru_reset + (tx_bank * 4));
+ writel(BIT(rx_offset) | (BIT(rx_offset) << 16),
+ cru_reset + (rx_bank * 4));
+ local_irq_restore(flags);
+ }
+}
+
+static void rockchip_snd_xfer_reset_deassert(struct rk_i2s_tdm_dev *i2s_tdm,
+ int tx_bank, int tx_offset,
+ int rx_bank, int rx_offset)
+{
+ void __iomem *cru_reset;
+ unsigned long flags;
+
+ cru_reset = i2s_tdm->cru_base + i2s_tdm->soc_data->softrst_offset;
+
+ if (tx_bank == rx_bank) {
+ writel((BIT(tx_offset) << 16) | (BIT(rx_offset) << 16),
+ cru_reset + (tx_bank * 4));
+ } else {
+ local_irq_save(flags);
+ writel((BIT(tx_offset) << 16),
+ cru_reset + (tx_bank * 4));
+ writel((BIT(rx_offset) << 16),
+ cru_reset + (rx_bank * 4));
+ local_irq_restore(flags);
+ }
+}
+
+/*
+ * Makes sure that both tx and rx are reset at the same time to sync lrck
+ * when clk_trcm > 0.
+ */
+static void rockchip_snd_xfer_sync_reset(struct rk_i2s_tdm_dev *i2s_tdm)
+{
+ int tx_id, rx_id;
+ int tx_bank, rx_bank, tx_offset, rx_offset;
+
+ if (!i2s_tdm->cru_base || !i2s_tdm->soc_data)
+ return;
+
+ tx_id = i2s_tdm->tx_reset_id;
+ rx_id = i2s_tdm->rx_reset_id;
+ if (tx_id < 0 || rx_id < 0)
+ return;
+
+ tx_bank = tx_id / 16;
+ tx_offset = tx_id % 16;
+ rx_bank = rx_id / 16;
+ rx_offset = rx_id % 16;
+ dev_dbg(i2s_tdm->dev,
+ "tx_bank: %d, rx_bank: %d, tx_offset: %d, rx_offset: %d\n",
+ tx_bank, rx_bank, tx_offset, rx_offset);
+
+ rockchip_snd_xfer_reset_assert(i2s_tdm, tx_bank, tx_offset,
+ rx_bank, rx_offset);
+
+ udelay(10);
+
+ rockchip_snd_xfer_reset_deassert(i2s_tdm, tx_bank, tx_offset,
+ rx_bank, rx_offset);
+ udelay(10);
+}
+
+static void rockchip_snd_reset(struct reset_control *rc)
+{
+ reset_control_assert(rc);
+ udelay(10);
+ reset_control_deassert(rc);
+ udelay(10);
+}
+
+static void rockchip_snd_xfer_clear(struct rk_i2s_tdm_dev *i2s_tdm,
+ unsigned int clr)
+{
+ unsigned int xfer_mask;
+ unsigned int xfer_val;
+ unsigned int val;
+ int retry = 10;
+ bool tx = clr & I2S_CLR_TXC;
+ bool rx = clr & I2S_CLR_RXC;
+
+ if (!(rx || tx))
+ return;
+
+ xfer_mask = (tx ? I2S_XFER_TXS_START : 0) |
+ (rx ? I2S_XFER_RXS_START : 0);
+ xfer_val = (tx ? I2S_XFER_TXS_STOP : 0) |
+ (rx ? I2S_XFER_RXS_STOP : 0);
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_XFER, xfer_mask, xfer_val);
+ udelay(150);
+ regmap_update_bits(i2s_tdm->regmap, I2S_CLR, clr, clr);
+
+ regmap_read(i2s_tdm->regmap, I2S_CLR, &val);
+ /* Wait on the clear operation to finish */
+ while (val) {
+ udelay(15);
+ regmap_read(i2s_tdm->regmap, I2S_CLR, &val);
+ retry--;
+ if (!retry) {
+ dev_warn(i2s_tdm->dev, "clear failed, reset %s%s\n",
+ tx ? "tx" : "", rx ? "rx" : "");
+ if (rx && tx)
+ rockchip_snd_xfer_sync_reset(i2s_tdm);
+ else if (tx)
+ rockchip_snd_reset(i2s_tdm->tx_reset);
+ else if (rx)
+ rockchip_snd_reset(i2s_tdm->rx_reset);
+ break;
+ }
+ }
+}
+
+static inline void rockchip_enable_tde(struct regmap *regmap)
+{
+ regmap_update_bits(regmap, I2S_DMACR, I2S_DMACR_TDE_ENABLE,
+ I2S_DMACR_TDE_ENABLE);
+}
+
+static inline void rockchip_disable_tde(struct regmap *regmap)
+{
+ regmap_update_bits(regmap, I2S_DMACR, I2S_DMACR_TDE_ENABLE,
+ I2S_DMACR_TDE_DISABLE);
+}
+
+static inline void rockchip_enable_rde(struct regmap *regmap)
+{
+ regmap_update_bits(regmap, I2S_DMACR, I2S_DMACR_RDE_ENABLE,
+ I2S_DMACR_RDE_ENABLE);
+}
+
+static inline void rockchip_disable_rde(struct regmap *regmap)
+{
+ regmap_update_bits(regmap, I2S_DMACR, I2S_DMACR_RDE_ENABLE,
+ I2S_DMACR_RDE_DISABLE);
+}
+
+/* only used when clk_trcm > 0 */
+static void rockchip_snd_txrxctrl(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai, int on)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(dai);
+ unsigned long flags;
+
+ spin_lock_irqsave(&i2s_tdm->lock, flags);
+ if (on) {
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ rockchip_enable_tde(i2s_tdm->regmap);
+ else
+ rockchip_enable_rde(i2s_tdm->regmap);
+
+ if (atomic_inc_return(&i2s_tdm->refcount) == 1) {
+ rockchip_snd_xfer_sync_reset(i2s_tdm);
+ regmap_update_bits(i2s_tdm->regmap, I2S_XFER,
+ I2S_XFER_TXS_START |
+ I2S_XFER_RXS_START,
+ I2S_XFER_TXS_START |
+ I2S_XFER_RXS_START);
+ }
+ } else {
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ rockchip_disable_tde(i2s_tdm->regmap);
+ else
+ rockchip_disable_rde(i2s_tdm->regmap);
+
+ if (atomic_dec_and_test(&i2s_tdm->refcount)) {
+ rockchip_snd_xfer_clear(i2s_tdm,
+ I2S_CLR_TXC | I2S_CLR_RXC);
+ }
+ }
+ spin_unlock_irqrestore(&i2s_tdm->lock, flags);
+}
+
+static void rockchip_snd_txctrl(struct rk_i2s_tdm_dev *i2s_tdm, int on)
+{
+ if (on) {
+ rockchip_enable_tde(i2s_tdm->regmap);
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_XFER,
+ I2S_XFER_TXS_START,
+ I2S_XFER_TXS_START);
+ } else {
+ rockchip_disable_tde(i2s_tdm->regmap);
+
+ rockchip_snd_xfer_clear(i2s_tdm, I2S_CLR_TXC);
+ }
+}
+
+static void rockchip_snd_rxctrl(struct rk_i2s_tdm_dev *i2s_tdm, int on)
+{
+ if (on) {
+ rockchip_enable_rde(i2s_tdm->regmap);
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_XFER,
+ I2S_XFER_RXS_START,
+ I2S_XFER_RXS_START);
+ } else {
+ rockchip_disable_rde(i2s_tdm->regmap);
+
+ rockchip_snd_xfer_clear(i2s_tdm, I2S_CLR_RXC);
+ }
+}
+
+static int rockchip_i2s_tdm_set_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(cpu_dai);
+ unsigned int mask, val, tdm_val, txcr_val, rxcr_val;
+ int ret;
+ bool is_tdm = i2s_tdm->tdm_mode;
+
+ ret = pm_runtime_get_sync(cpu_dai->dev);
+ if (ret < 0 && ret != -EACCES) {
+ pm_runtime_put_noidle(cpu_dai->dev);
+ return ret;
+ }
+
+ mask = I2S_CKR_MSS_MASK;
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ val = I2S_CKR_MSS_MASTER;
+ i2s_tdm->is_master_mode = true;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ val = I2S_CKR_MSS_SLAVE;
+ i2s_tdm->is_master_mode = false;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err_pm_put;
+ }
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_CKR, mask, val);
+
+ mask = I2S_CKR_CKP_MASK | I2S_CKR_TLP_MASK | I2S_CKR_RLP_MASK;
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ val = I2S_CKR_CKP_NORMAL |
+ I2S_CKR_TLP_NORMAL |
+ I2S_CKR_RLP_NORMAL;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ val = I2S_CKR_CKP_NORMAL |
+ I2S_CKR_TLP_INVERTED |
+ I2S_CKR_RLP_INVERTED;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ val = I2S_CKR_CKP_INVERTED |
+ I2S_CKR_TLP_NORMAL |
+ I2S_CKR_RLP_NORMAL;
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ val = I2S_CKR_CKP_INVERTED |
+ I2S_CKR_TLP_INVERTED |
+ I2S_CKR_RLP_INVERTED;
+ break;
+ default:
+ ret = -EINVAL;
+ goto err_pm_put;
+ }
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_CKR, mask, val);
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_RIGHT_J:
+ txcr_val = I2S_TXCR_IBM_RSJM;
+ rxcr_val = I2S_RXCR_IBM_RSJM;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ txcr_val = I2S_TXCR_IBM_LSJM;
+ rxcr_val = I2S_RXCR_IBM_LSJM;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ txcr_val = I2S_TXCR_IBM_NORMAL;
+ rxcr_val = I2S_RXCR_IBM_NORMAL;
+ break;
+ case SND_SOC_DAIFMT_DSP_A: /* PCM no delay mode */
+ txcr_val = I2S_TXCR_TFS_PCM;
+ rxcr_val = I2S_RXCR_TFS_PCM;
+ break;
+ case SND_SOC_DAIFMT_DSP_B: /* PCM delay 1 mode */
+ txcr_val = I2S_TXCR_TFS_PCM | I2S_TXCR_PBM_MODE(1);
+ rxcr_val = I2S_RXCR_TFS_PCM | I2S_RXCR_PBM_MODE(1);
+ break;
+ default:
+ ret = -EINVAL;
+ goto err_pm_put;
+ }
+
+ mask = I2S_TXCR_IBM_MASK | I2S_TXCR_TFS_MASK | I2S_TXCR_PBM_MASK;
+ regmap_update_bits(i2s_tdm->regmap, I2S_TXCR, mask, txcr_val);
+
+ mask = I2S_RXCR_IBM_MASK | I2S_RXCR_TFS_MASK | I2S_RXCR_PBM_MASK;
+ regmap_update_bits(i2s_tdm->regmap, I2S_RXCR, mask, rxcr_val);
+
+ if (is_tdm) {
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_RIGHT_J:
+ val = I2S_TXCR_TFS_TDM_I2S;
+ tdm_val = TDM_SHIFT_CTRL(2);
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ val = I2S_TXCR_TFS_TDM_I2S;
+ tdm_val = TDM_SHIFT_CTRL(1);
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ val = I2S_TXCR_TFS_TDM_I2S;
+ tdm_val = TDM_SHIFT_CTRL(0);
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ val = I2S_TXCR_TFS_TDM_PCM;
+ tdm_val = TDM_SHIFT_CTRL(0);
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ val = I2S_TXCR_TFS_TDM_PCM;
+ tdm_val = TDM_SHIFT_CTRL(2);
+ break;
+ default:
+ ret = -EINVAL;
+ goto err_pm_put;
+ }
+
+ tdm_val |= TDM_FSYNC_WIDTH_SEL1(1);
+ if (i2s_tdm->tdm_fsync_half_frame)
+ tdm_val |= TDM_FSYNC_WIDTH_HALF_FRAME;
+ else
+ tdm_val |= TDM_FSYNC_WIDTH_ONE_FRAME;
+
+ mask = I2S_TXCR_TFS_MASK;
+ regmap_update_bits(i2s_tdm->regmap, I2S_TXCR, mask, val);
+ regmap_update_bits(i2s_tdm->regmap, I2S_RXCR, mask, val);
+
+ mask = TDM_FSYNC_WIDTH_SEL1_MSK | TDM_FSYNC_WIDTH_SEL0_MSK |
+ TDM_SHIFT_CTRL_MSK;
+ regmap_update_bits(i2s_tdm->regmap, I2S_TDM_TXCR,
+ mask, tdm_val);
+ regmap_update_bits(i2s_tdm->regmap, I2S_TDM_RXCR,
+ mask, tdm_val);
+ }
+
+err_pm_put:
+ pm_runtime_put(cpu_dai->dev);
+
+ return ret;
+}
+
+static void rockchip_i2s_tdm_xfer_pause(struct snd_pcm_substream *substream,
+ struct rk_i2s_tdm_dev *i2s_tdm)
+{
+ int stream;
+
+ stream = SNDRV_PCM_STREAM_LAST - substream->stream;
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ rockchip_disable_tde(i2s_tdm->regmap);
+ else
+ rockchip_disable_rde(i2s_tdm->regmap);
+
+ rockchip_snd_xfer_clear(i2s_tdm, I2S_CLR_TXC | I2S_CLR_RXC);
+}
+
+static void rockchip_i2s_tdm_xfer_resume(struct snd_pcm_substream *substream,
+ struct rk_i2s_tdm_dev *i2s_tdm)
+{
+ int stream;
+
+ stream = SNDRV_PCM_STREAM_LAST - substream->stream;
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ rockchip_enable_tde(i2s_tdm->regmap);
+ else
+ rockchip_enable_rde(i2s_tdm->regmap);
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_XFER,
+ I2S_XFER_TXS_START |
+ I2S_XFER_RXS_START,
+ I2S_XFER_TXS_START |
+ I2S_XFER_RXS_START);
+}
+
+static int rockchip_i2s_tdm_clk_set_rate(struct rk_i2s_tdm_dev *i2s_tdm,
+ struct clk *clk, unsigned long rate,
+ int ppm)
+{
+ unsigned long rate_target;
+ int delta, ret;
+
+ if (ppm == i2s_tdm->clk_ppm)
+ return 0;
+
+ delta = (ppm < 0) ? -1 : 1;
+ delta *= (int)div64_u64((u64)rate * (u64)abs(ppm) + 500000,
+ 1000000);
+
+ rate_target = rate + delta;
+
+ if (!rate_target)
+ return -EINVAL;
+
+ ret = clk_set_rate(clk, rate_target);
+ if (ret)
+ return ret;
+
+ i2s_tdm->clk_ppm = ppm;
+
+ return ret;
+}
+
+static int rockchip_i2s_tdm_calibrate_mclk(struct rk_i2s_tdm_dev *i2s_tdm,
+ struct snd_pcm_substream *substream,
+ unsigned int lrck_freq)
+{
+ struct clk *mclk_root;
+ struct clk *mclk_parent;
+ unsigned int mclk_root_freq;
+ unsigned int mclk_root_initial_freq;
+ unsigned int mclk_parent_freq;
+ unsigned int div, delta;
+ u64 ppm;
+ int ret;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ mclk_parent = i2s_tdm->mclk_tx_src;
+ else
+ mclk_parent = i2s_tdm->mclk_rx_src;
+
+ switch (lrck_freq) {
+ case 8000:
+ case 16000:
+ case 24000:
+ case 32000:
+ case 48000:
+ case 64000:
+ case 96000:
+ case 192000:
+ mclk_root = i2s_tdm->mclk_root0;
+ mclk_root_freq = i2s_tdm->mclk_root0_freq;
+ mclk_root_initial_freq = i2s_tdm->mclk_root0_initial_freq;
+ mclk_parent_freq = DEFAULT_MCLK_FS * 192000;
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ case 88200:
+ case 176400:
+ mclk_root = i2s_tdm->mclk_root1;
+ mclk_root_freq = i2s_tdm->mclk_root1_freq;
+ mclk_root_initial_freq = i2s_tdm->mclk_root1_initial_freq;
+ mclk_parent_freq = DEFAULT_MCLK_FS * 176400;
+ break;
+ default:
+ dev_err(i2s_tdm->dev, "Invalid LRCK frequency: %u Hz\n",
+ lrck_freq);
+ return -EINVAL;
+ }
+
+ ret = clk_set_parent(mclk_parent, mclk_root);
+ if (ret)
+ return ret;
+
+ ret = rockchip_i2s_tdm_clk_set_rate(i2s_tdm, mclk_root,
+ mclk_root_freq, 0);
+ if (ret)
+ return ret;
+
+ delta = abs(mclk_root_freq % mclk_parent_freq - mclk_parent_freq);
+ ppm = div64_u64((uint64_t)delta * 1000000, (uint64_t)mclk_root_freq);
+
+ if (ppm) {
+ div = DIV_ROUND_CLOSEST(mclk_root_initial_freq, mclk_parent_freq);
+ if (!div)
+ return -EINVAL;
+
+ mclk_root_freq = mclk_parent_freq * round_up(div, 2);
+
+ ret = clk_set_rate(mclk_root, mclk_root_freq);
+ if (ret)
+ return ret;
+
+ i2s_tdm->mclk_root0_freq = clk_get_rate(i2s_tdm->mclk_root0);
+ i2s_tdm->mclk_root1_freq = clk_get_rate(i2s_tdm->mclk_root1);
+ }
+
+ return clk_set_rate(mclk_parent, mclk_parent_freq);
+}
+
+static int rockchip_i2s_tdm_set_mclk(struct rk_i2s_tdm_dev *i2s_tdm,
+ struct snd_pcm_substream *substream,
+ struct clk **mclk)
+{
+ unsigned int mclk_freq;
+ int ret;
+
+ if (i2s_tdm->clk_trcm) {
+ if (i2s_tdm->mclk_tx_freq != i2s_tdm->mclk_rx_freq) {
+ dev_err(i2s_tdm->dev,
+ "clk_trcm, tx: %d and rx: %d should be the same\n",
+ i2s_tdm->mclk_tx_freq,
+ i2s_tdm->mclk_rx_freq);
+ return -EINVAL;
+ }
+
+ ret = clk_set_rate(i2s_tdm->mclk_tx, i2s_tdm->mclk_tx_freq);
+ if (ret)
+ return ret;
+
+ ret = clk_set_rate(i2s_tdm->mclk_rx, i2s_tdm->mclk_rx_freq);
+ if (ret)
+ return ret;
+
+ /* mclk_rx is also ok. */
+ *mclk = i2s_tdm->mclk_tx;
+ } else {
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ *mclk = i2s_tdm->mclk_tx;
+ mclk_freq = i2s_tdm->mclk_tx_freq;
+ } else {
+ *mclk = i2s_tdm->mclk_rx;
+ mclk_freq = i2s_tdm->mclk_rx_freq;
+ }
+
+ ret = clk_set_rate(*mclk, mclk_freq);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rockchip_i2s_ch_to_io(unsigned int ch, bool substream_capture)
+{
+ if (substream_capture) {
+ switch (ch) {
+ case I2S_CHN_4:
+ return I2S_IO_6CH_OUT_4CH_IN;
+ case I2S_CHN_6:
+ return I2S_IO_4CH_OUT_6CH_IN;
+ case I2S_CHN_8:
+ return I2S_IO_2CH_OUT_8CH_IN;
+ default:
+ return I2S_IO_8CH_OUT_2CH_IN;
+ }
+ } else {
+ switch (ch) {
+ case I2S_CHN_4:
+ return I2S_IO_4CH_OUT_6CH_IN;
+ case I2S_CHN_6:
+ return I2S_IO_6CH_OUT_4CH_IN;
+ case I2S_CHN_8:
+ return I2S_IO_8CH_OUT_2CH_IN;
+ default:
+ return I2S_IO_2CH_OUT_8CH_IN;
+ }
+ }
+}
+
+static int rockchip_i2s_io_multiplex(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(dai);
+ int usable_chs = MULTIPLEX_CH_MAX;
+ unsigned int val = 0;
+
+ if (!i2s_tdm->io_multiplex)
+ return 0;
+
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+ struct snd_pcm_str *playback_str =
+ &substream->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK];
+
+ if (playback_str->substream_opened) {
+ regmap_read(i2s_tdm->regmap, I2S_TXCR, &val);
+ val &= I2S_TXCR_CSR_MASK;
+ usable_chs = MULTIPLEX_CH_MAX - to_ch_num(val);
+ }
+
+ regmap_read(i2s_tdm->regmap, I2S_RXCR, &val);
+ val &= I2S_RXCR_CSR_MASK;
+
+ if (to_ch_num(val) > usable_chs) {
+ dev_err(i2s_tdm->dev,
+ "Capture channels (%d) > usable channels (%d)\n",
+ to_ch_num(val), usable_chs);
+ return -EINVAL;
+ }
+
+ rockchip_i2s_ch_to_io(val, true);
+ } else {
+ struct snd_pcm_str *capture_str =
+ &substream->pcm->streams[SNDRV_PCM_STREAM_CAPTURE];
+
+ if (capture_str->substream_opened) {
+ regmap_read(i2s_tdm->regmap, I2S_RXCR, &val);
+ val &= I2S_RXCR_CSR_MASK;
+ usable_chs = MULTIPLEX_CH_MAX - to_ch_num(val);
+ }
+
+ regmap_read(i2s_tdm->regmap, I2S_TXCR, &val);
+ val &= I2S_TXCR_CSR_MASK;
+
+ if (to_ch_num(val) > usable_chs) {
+ dev_err(i2s_tdm->dev,
+ "Playback channels (%d) > usable channels (%d)\n",
+ to_ch_num(val), usable_chs);
+ return -EINVAL;
+ }
+
+ rockchip_i2s_ch_to_io(val, false);
+ }
+
+ val <<= i2s_tdm->soc_data->grf_shift;
+ val |= (I2S_IO_DIRECTION_MASK << i2s_tdm->soc_data->grf_shift) << 16;
+ regmap_write(i2s_tdm->grf, i2s_tdm->soc_data->grf_reg_offset, val);
+
+ return 0;
+}
+
+static int rockchip_i2s_trcm_mode(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai,
+ unsigned int div_bclk,
+ unsigned int div_lrck,
+ unsigned int fmt)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(dai);
+ unsigned long flags;
+
+ if (!i2s_tdm->clk_trcm)
+ return 0;
+
+ spin_lock_irqsave(&i2s_tdm->lock, flags);
+ if (atomic_read(&i2s_tdm->refcount))
+ rockchip_i2s_tdm_xfer_pause(substream, i2s_tdm);
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_CLKDIV,
+ I2S_CLKDIV_TXM_MASK | I2S_CLKDIV_RXM_MASK,
+ I2S_CLKDIV_TXM(div_bclk) | I2S_CLKDIV_RXM(div_bclk));
+ regmap_update_bits(i2s_tdm->regmap, I2S_CKR,
+ I2S_CKR_TSD_MASK | I2S_CKR_RSD_MASK,
+ I2S_CKR_TSD(div_lrck) | I2S_CKR_RSD(div_lrck));
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ regmap_update_bits(i2s_tdm->regmap, I2S_TXCR,
+ I2S_TXCR_VDW_MASK | I2S_TXCR_CSR_MASK,
+ fmt);
+ else
+ regmap_update_bits(i2s_tdm->regmap, I2S_RXCR,
+ I2S_RXCR_VDW_MASK | I2S_RXCR_CSR_MASK,
+ fmt);
+
+ if (atomic_read(&i2s_tdm->refcount))
+ rockchip_i2s_tdm_xfer_resume(substream, i2s_tdm);
+ spin_unlock_irqrestore(&i2s_tdm->lock, flags);
+
+ return 0;
+}
+
+static int rockchip_i2s_tdm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(dai);
+ struct clk *mclk;
+ int ret = 0;
+ unsigned int val = 0;
+ unsigned int mclk_rate, bclk_rate, div_bclk = 4, div_lrck = 64;
+
+ if (i2s_tdm->is_master_mode) {
+ if (i2s_tdm->mclk_calibrate)
+ rockchip_i2s_tdm_calibrate_mclk(i2s_tdm, substream,
+ params_rate(params));
+
+ ret = rockchip_i2s_tdm_set_mclk(i2s_tdm, substream, &mclk);
+ if (ret)
+ return ret;
+
+ mclk_rate = clk_get_rate(mclk);
+ bclk_rate = i2s_tdm->frame_width * params_rate(params);
+ if (!bclk_rate)
+ return -EINVAL;
+
+ div_bclk = DIV_ROUND_CLOSEST(mclk_rate, bclk_rate);
+ div_lrck = bclk_rate / params_rate(params);
+ }
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ val |= I2S_TXCR_VDW(8);
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ val |= I2S_TXCR_VDW(16);
+ break;
+ case SNDRV_PCM_FORMAT_S20_3LE:
+ val |= I2S_TXCR_VDW(20);
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ val |= I2S_TXCR_VDW(24);
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ val |= I2S_TXCR_VDW(32);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (params_channels(params)) {
+ case 8:
+ val |= I2S_CHN_8;
+ break;
+ case 6:
+ val |= I2S_CHN_6;
+ break;
+ case 4:
+ val |= I2S_CHN_4;
+ break;
+ case 2:
+ val |= I2S_CHN_2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (i2s_tdm->clk_trcm) {
+ rockchip_i2s_trcm_mode(substream, dai, div_bclk, div_lrck, val);
+ } else if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ regmap_update_bits(i2s_tdm->regmap, I2S_CLKDIV,
+ I2S_CLKDIV_TXM_MASK,
+ I2S_CLKDIV_TXM(div_bclk));
+ regmap_update_bits(i2s_tdm->regmap, I2S_CKR,
+ I2S_CKR_TSD_MASK,
+ I2S_CKR_TSD(div_lrck));
+ regmap_update_bits(i2s_tdm->regmap, I2S_TXCR,
+ I2S_TXCR_VDW_MASK | I2S_TXCR_CSR_MASK,
+ val);
+ } else {
+ regmap_update_bits(i2s_tdm->regmap, I2S_CLKDIV,
+ I2S_CLKDIV_RXM_MASK,
+ I2S_CLKDIV_RXM(div_bclk));
+ regmap_update_bits(i2s_tdm->regmap, I2S_CKR,
+ I2S_CKR_RSD_MASK,
+ I2S_CKR_RSD(div_lrck));
+ regmap_update_bits(i2s_tdm->regmap, I2S_RXCR,
+ I2S_RXCR_VDW_MASK | I2S_RXCR_CSR_MASK,
+ val);
+ }
+
+ return rockchip_i2s_io_multiplex(substream, dai);
+}
+
+static int rockchip_i2s_tdm_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(dai);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if (i2s_tdm->clk_trcm)
+ rockchip_snd_txrxctrl(substream, dai, 1);
+ else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ rockchip_snd_rxctrl(i2s_tdm, 1);
+ else
+ rockchip_snd_txctrl(i2s_tdm, 1);
+ break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ if (i2s_tdm->clk_trcm)
+ rockchip_snd_txrxctrl(substream, dai, 0);
+ else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ rockchip_snd_rxctrl(i2s_tdm, 0);
+ else
+ rockchip_snd_txctrl(i2s_tdm, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rockchip_i2s_tdm_set_sysclk(struct snd_soc_dai *cpu_dai, int stream,
+ unsigned int freq, int dir)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = to_info(cpu_dai);
+
+ /* Put set mclk rate into rockchip_i2s_tdm_set_mclk() */
+ if (i2s_tdm->clk_trcm) {
+ i2s_tdm->mclk_tx_freq = freq;
+ i2s_tdm->mclk_rx_freq = freq;
+ } else {
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ i2s_tdm->mclk_tx_freq = freq;
+ else
+ i2s_tdm->mclk_rx_freq = freq;
+ }
+
+ dev_dbg(i2s_tdm->dev, "The target mclk_%s freq is: %d\n",
+ stream ? "rx" : "tx", freq);
+
+ return 0;
+}
+
+static int rockchip_i2s_tdm_clk_compensation_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = CLK_PPM_MIN;
+ uinfo->value.integer.max = CLK_PPM_MAX;
+ uinfo->value.integer.step = 1;
+
+ return 0;
+}
+
+static int rockchip_i2s_tdm_clk_compensation_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+ struct rk_i2s_tdm_dev *i2s_tdm = snd_soc_dai_get_drvdata(dai);
+
+ ucontrol->value.integer.value[0] = i2s_tdm->clk_ppm;
+
+ return 0;
+}
+
+static int rockchip_i2s_tdm_clk_compensation_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+ struct rk_i2s_tdm_dev *i2s_tdm = snd_soc_dai_get_drvdata(dai);
+ int ret = 0, ppm = 0;
+
+ if (ucontrol->value.integer.value[0] < CLK_PPM_MIN ||
+ ucontrol->value.integer.value[0] > CLK_PPM_MAX)
+ return -EINVAL;
+
+ ppm = ucontrol->value.integer.value[0];
+
+ ret = rockchip_i2s_tdm_clk_set_rate(i2s_tdm, i2s_tdm->mclk_root0,
+ i2s_tdm->mclk_root0_freq, ppm);
+ if (ret)
+ return ret;
+
+ if (clk_is_match(i2s_tdm->mclk_root0, i2s_tdm->mclk_root1))
+ return 0;
+
+ ret = rockchip_i2s_tdm_clk_set_rate(i2s_tdm, i2s_tdm->mclk_root1,
+ i2s_tdm->mclk_root1_freq, ppm);
+
+ return ret;
+}
+
+static struct snd_kcontrol_new rockchip_i2s_tdm_compensation_control = {
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "PCM Clock Compensation in PPM",
+ .info = rockchip_i2s_tdm_clk_compensation_info,
+ .get = rockchip_i2s_tdm_clk_compensation_get,
+ .put = rockchip_i2s_tdm_clk_compensation_put,
+};
+
+static int rockchip_i2s_tdm_dai_probe(struct snd_soc_dai *dai)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = snd_soc_dai_get_drvdata(dai);
+
+ if (i2s_tdm->has_capture)
+ dai->capture_dma_data = &i2s_tdm->capture_dma_data;
+ if (i2s_tdm->has_playback)
+ dai->playback_dma_data = &i2s_tdm->playback_dma_data;
+
+ if (i2s_tdm->mclk_calibrate)
+ snd_soc_add_dai_controls(dai, &rockchip_i2s_tdm_compensation_control, 1);
+
+ return 0;
+}
+
+static int rockchip_dai_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = snd_soc_dai_get_drvdata(dai);
+ unsigned int mask, val;
+
+ i2s_tdm->tdm_mode = true;
+ i2s_tdm->frame_width = slots * slot_width;
+ mask = TDM_SLOT_BIT_WIDTH_MSK | TDM_FRAME_WIDTH_MSK;
+ val = TDM_SLOT_BIT_WIDTH(slot_width) |
+ TDM_FRAME_WIDTH(slots * slot_width);
+ regmap_update_bits(i2s_tdm->regmap, I2S_TDM_TXCR,
+ mask, val);
+ regmap_update_bits(i2s_tdm->regmap, I2S_TDM_RXCR,
+ mask, val);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops rockchip_i2s_tdm_dai_ops = {
+ .hw_params = rockchip_i2s_tdm_hw_params,
+ .set_sysclk = rockchip_i2s_tdm_set_sysclk,
+ .set_fmt = rockchip_i2s_tdm_set_fmt,
+ .set_tdm_slot = rockchip_dai_tdm_slot,
+ .trigger = rockchip_i2s_tdm_trigger,
+};
+
+static const struct snd_soc_component_driver rockchip_i2s_tdm_component = {
+ .name = DRV_NAME,
+};
+
+static bool rockchip_i2s_tdm_wr_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case I2S_TXCR:
+ case I2S_RXCR:
+ case I2S_CKR:
+ case I2S_DMACR:
+ case I2S_INTCR:
+ case I2S_XFER:
+ case I2S_CLR:
+ case I2S_TXDR:
+ case I2S_TDM_TXCR:
+ case I2S_TDM_RXCR:
+ case I2S_CLKDIV:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rockchip_i2s_tdm_rd_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case I2S_TXCR:
+ case I2S_RXCR:
+ case I2S_CKR:
+ case I2S_DMACR:
+ case I2S_INTCR:
+ case I2S_XFER:
+ case I2S_CLR:
+ case I2S_TXDR:
+ case I2S_RXDR:
+ case I2S_TXFIFOLR:
+ case I2S_INTSR:
+ case I2S_RXFIFOLR:
+ case I2S_TDM_TXCR:
+ case I2S_TDM_RXCR:
+ case I2S_CLKDIV:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rockchip_i2s_tdm_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case I2S_TXFIFOLR:
+ case I2S_INTSR:
+ case I2S_CLR:
+ case I2S_TXDR:
+ case I2S_RXDR:
+ case I2S_RXFIFOLR:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool rockchip_i2s_tdm_precious_reg(struct device *dev, unsigned int reg)
+{
+ if (reg == I2S_RXDR)
+ return true;
+ return false;
+}
+
+static const struct reg_default rockchip_i2s_tdm_reg_defaults[] = {
+ {0x00, 0x7200000f},
+ {0x04, 0x01c8000f},
+ {0x08, 0x00001f1f},
+ {0x10, 0x001f0000},
+ {0x14, 0x01f00000},
+ {0x30, 0x00003eff},
+ {0x34, 0x00003eff},
+ {0x38, 0x00000707},
+};
+
+static const struct regmap_config rockchip_i2s_tdm_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = I2S_CLKDIV,
+ .reg_defaults = rockchip_i2s_tdm_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(rockchip_i2s_tdm_reg_defaults),
+ .writeable_reg = rockchip_i2s_tdm_wr_reg,
+ .readable_reg = rockchip_i2s_tdm_rd_reg,
+ .volatile_reg = rockchip_i2s_tdm_volatile_reg,
+ .precious_reg = rockchip_i2s_tdm_precious_reg,
+ .cache_type = REGCACHE_FLAT,
+};
+
+static int common_soc_init(struct device *dev, u32 addr)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = dev_get_drvdata(dev);
+ const struct txrx_config *configs = i2s_tdm->soc_data->configs;
+ u32 reg = 0, val = 0, trcm = i2s_tdm->clk_trcm;
+ int i;
+
+ if (trcm == TRCM_TXRX)
+ return 0;
+
+ for (i = 0; i < i2s_tdm->soc_data->config_count; i++) {
+ if (addr != configs[i].addr)
+ continue;
+ reg = configs[i].reg;
+ if (trcm == TRCM_TX)
+ val = configs[i].txonly;
+ else
+ val = configs[i].rxonly;
+
+ if (reg)
+ regmap_write(i2s_tdm->grf, reg, val);
+ }
+
+ return 0;
+}
+
+static const struct txrx_config px30_txrx_config[] = {
+ { 0xff060000, 0x184, PX30_I2S0_CLK_TXONLY, PX30_I2S0_CLK_RXONLY },
+};
+
+static const struct txrx_config rk1808_txrx_config[] = {
+ { 0xff7e0000, 0x190, RK1808_I2S0_CLK_TXONLY, RK1808_I2S0_CLK_RXONLY },
+};
+
+static const struct txrx_config rk3308_txrx_config[] = {
+ { 0xff300000, 0x308, RK3308_I2S0_CLK_TXONLY, RK3308_I2S0_CLK_RXONLY },
+ { 0xff310000, 0x308, RK3308_I2S1_CLK_TXONLY, RK3308_I2S1_CLK_RXONLY },
+};
+
+static const struct txrx_config rk3568_txrx_config[] = {
+ { 0xfe410000, 0x504, RK3568_I2S1_CLK_TXONLY, RK3568_I2S1_CLK_RXONLY },
+ { 0xfe410000, 0x508, RK3568_I2S1_MCLK_TX_OE, RK3568_I2S1_MCLK_RX_OE },
+ { 0xfe420000, 0x508, RK3568_I2S2_MCLK_OE, RK3568_I2S2_MCLK_OE },
+ { 0xfe430000, 0x504, RK3568_I2S3_CLK_TXONLY, RK3568_I2S3_CLK_RXONLY },
+ { 0xfe430000, 0x508, RK3568_I2S3_MCLK_TXONLY, RK3568_I2S3_MCLK_RXONLY },
+ { 0xfe430000, 0x508, RK3568_I2S3_MCLK_OE, RK3568_I2S3_MCLK_OE },
+};
+
+static const struct txrx_config rv1126_txrx_config[] = {
+ { 0xff800000, 0x10260, RV1126_I2S0_CLK_TXONLY, RV1126_I2S0_CLK_RXONLY },
+};
+
+static struct rk_i2s_soc_data px30_i2s_soc_data = {
+ .softrst_offset = 0x0300,
+ .configs = px30_txrx_config,
+ .config_count = ARRAY_SIZE(px30_txrx_config),
+ .init = common_soc_init,
+};
+
+static struct rk_i2s_soc_data rk1808_i2s_soc_data = {
+ .softrst_offset = 0x0300,
+ .configs = rk1808_txrx_config,
+ .config_count = ARRAY_SIZE(rk1808_txrx_config),
+ .init = common_soc_init,
+};
+
+static struct rk_i2s_soc_data rk3308_i2s_soc_data = {
+ .softrst_offset = 0x0400,
+ .grf_reg_offset = 0x0308,
+ .grf_shift = 5,
+ .configs = rk3308_txrx_config,
+ .config_count = ARRAY_SIZE(rk3308_txrx_config),
+ .init = common_soc_init,
+};
+
+static struct rk_i2s_soc_data rk3568_i2s_soc_data = {
+ .softrst_offset = 0x0400,
+ .configs = rk3568_txrx_config,
+ .config_count = ARRAY_SIZE(rk3568_txrx_config),
+ .init = common_soc_init,
+};
+
+static struct rk_i2s_soc_data rv1126_i2s_soc_data = {
+ .softrst_offset = 0x0300,
+ .configs = rv1126_txrx_config,
+ .config_count = ARRAY_SIZE(rv1126_txrx_config),
+ .init = common_soc_init,
+};
+
+static const struct of_device_id rockchip_i2s_tdm_match[] = {
+ { .compatible = "rockchip,px30-i2s-tdm", .data = &px30_i2s_soc_data },
+ { .compatible = "rockchip,rk1808-i2s-tdm", .data = &rk1808_i2s_soc_data },
+ { .compatible = "rockchip,rk3308-i2s-tdm", .data = &rk3308_i2s_soc_data },
+ { .compatible = "rockchip,rk3568-i2s-tdm", .data = &rk3568_i2s_soc_data },
+ { .compatible = "rockchip,rv1126-i2s-tdm", .data = &rv1126_i2s_soc_data },
+ {},
+};
+
+static int of_i2s_resetid_get(struct device_node *node,
+ const char *id)
+{
+ struct of_phandle_args args;
+ int index = 0;
+ int ret;
+
+ if (id)
+ index = of_property_match_string(node,
+ "reset-names", id);
+ ret = of_parse_phandle_with_args(node, "resets", "#reset-cells",
+ index, &args);
+ if (ret)
+ return ret;
+
+ return args.args[0];
+}
+
+static struct snd_soc_dai_driver i2s_tdm_dai = {
+ .probe = rockchip_i2s_tdm_dai_probe,
+ .playback = {
+ .stream_name = "Playback",
+ },
+ .capture = {
+ .stream_name = "Capture",
+ },
+ .ops = &rockchip_i2s_tdm_dai_ops,
+};
+
+static void rockchip_i2s_tdm_init_dai(struct rk_i2s_tdm_dev *i2s_tdm)
+{
+ struct property *dma_names;
+ const char *dma_name;
+ u64 formats = (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE);
+ struct device_node *node = i2s_tdm->dev->of_node;
+
+ of_property_for_each_string(node, "dma-names", dma_names, dma_name) {
+ if (!strcmp(dma_name, "tx"))
+ i2s_tdm->has_playback = true;
+ if (!strcmp(dma_name, "rx"))
+ i2s_tdm->has_capture = true;
+ }
+
+ if (i2s_tdm->has_playback) {
+ i2s_tdm_dai.playback.channels_min = 2;
+ i2s_tdm_dai.playback.channels_max = 8;
+ i2s_tdm_dai.playback.rates = SNDRV_PCM_RATE_8000_192000;
+ i2s_tdm_dai.playback.formats = formats;
+ }
+
+ if (i2s_tdm->has_capture) {
+ i2s_tdm_dai.capture.channels_min = 2;
+ i2s_tdm_dai.capture.channels_max = 8;
+ i2s_tdm_dai.capture.rates = SNDRV_PCM_RATE_8000_192000;
+ i2s_tdm_dai.capture.formats = formats;
+ }
+}
+
+static int rockchip_i2s_tdm_path_check(struct rk_i2s_tdm_dev *i2s_tdm,
+ int num,
+ bool is_rx_path)
+{
+ unsigned int *i2s_data;
+ int i, j;
+
+ if (is_rx_path)
+ i2s_data = i2s_tdm->i2s_sdis;
+ else
+ i2s_data = i2s_tdm->i2s_sdos;
+
+ for (i = 0; i < num; i++) {
+ if (i2s_data[i] > CH_GRP_MAX - 1) {
+ dev_err(i2s_tdm->dev,
+ "%s path i2s_data[%d]: %d is too high, max is: %d\n",
+ is_rx_path ? "RX" : "TX",
+ i, i2s_data[i], CH_GRP_MAX);
+ return -EINVAL;
+ }
+
+ for (j = 0; j < num; j++) {
+ if (i == j)
+ continue;
+
+ if (i2s_data[i] == i2s_data[j]) {
+ dev_err(i2s_tdm->dev,
+ "%s path invalid routed i2s_data: [%d]%d == [%d]%d\n",
+ is_rx_path ? "RX" : "TX",
+ i, i2s_data[i],
+ j, i2s_data[j]);
+ return -EINVAL;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static void rockchip_i2s_tdm_tx_path_config(struct rk_i2s_tdm_dev *i2s_tdm,
+ int num)
+{
+ int idx;
+
+ for (idx = 0; idx < num; idx++) {
+ regmap_update_bits(i2s_tdm->regmap, I2S_TXCR,
+ I2S_TXCR_PATH_MASK(idx),
+ I2S_TXCR_PATH(idx, i2s_tdm->i2s_sdos[idx]));
+ }
+}
+
+static void rockchip_i2s_tdm_rx_path_config(struct rk_i2s_tdm_dev *i2s_tdm,
+ int num)
+{
+ int idx;
+
+ for (idx = 0; idx < num; idx++) {
+ regmap_update_bits(i2s_tdm->regmap, I2S_RXCR,
+ I2S_RXCR_PATH_MASK(idx),
+ I2S_RXCR_PATH(idx, i2s_tdm->i2s_sdis[idx]));
+ }
+}
+
+static void rockchip_i2s_tdm_path_config(struct rk_i2s_tdm_dev *i2s_tdm,
+ int num, bool is_rx_path)
+{
+ if (is_rx_path)
+ rockchip_i2s_tdm_rx_path_config(i2s_tdm, num);
+ else
+ rockchip_i2s_tdm_tx_path_config(i2s_tdm, num);
+}
+
+static int rockchip_i2s_tdm_path_prepare(struct rk_i2s_tdm_dev *i2s_tdm,
+ struct device_node *np,
+ bool is_rx_path)
+{
+ char *i2s_tx_path_prop = "rockchip,i2s-tx-route";
+ char *i2s_rx_path_prop = "rockchip,i2s-rx-route";
+ char *i2s_path_prop;
+ unsigned int *i2s_data;
+ int num, ret = 0;
+
+ if (is_rx_path) {
+ i2s_path_prop = i2s_rx_path_prop;
+ i2s_data = i2s_tdm->i2s_sdis;
+ } else {
+ i2s_path_prop = i2s_tx_path_prop;
+ i2s_data = i2s_tdm->i2s_sdos;
+ }
+
+ num = of_count_phandle_with_args(np, i2s_path_prop, NULL);
+ if (num < 0) {
+ if (num != -ENOENT) {
+ dev_err(i2s_tdm->dev,
+ "Failed to read '%s' num: %d\n",
+ i2s_path_prop, num);
+ ret = num;
+ }
+ return ret;
+ } else if (num != CH_GRP_MAX) {
+ dev_err(i2s_tdm->dev,
+ "The num: %d should be: %d\n", num, CH_GRP_MAX);
+ return -EINVAL;
+ }
+
+ ret = of_property_read_u32_array(np, i2s_path_prop,
+ i2s_data, num);
+ if (ret < 0) {
+ dev_err(i2s_tdm->dev,
+ "Failed to read '%s': %d\n",
+ i2s_path_prop, ret);
+ return ret;
+ }
+
+ ret = rockchip_i2s_tdm_path_check(i2s_tdm, num, is_rx_path);
+ if (ret < 0) {
+ dev_err(i2s_tdm->dev,
+ "Failed to check i2s data bus: %d\n", ret);
+ return ret;
+ }
+
+ rockchip_i2s_tdm_path_config(i2s_tdm, num, is_rx_path);
+
+ return 0;
+}
+
+static int rockchip_i2s_tdm_tx_path_prepare(struct rk_i2s_tdm_dev *i2s_tdm,
+ struct device_node *np)
+{
+ return rockchip_i2s_tdm_path_prepare(i2s_tdm, np, 0);
+}
+
+static int rockchip_i2s_tdm_rx_path_prepare(struct rk_i2s_tdm_dev *i2s_tdm,
+ struct device_node *np)
+{
+ return rockchip_i2s_tdm_path_prepare(i2s_tdm, np, 1);
+}
+
+static int rockchip_i2s_tdm_probe(struct platform_device *pdev)
+{
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *cru_node;
+ const struct of_device_id *of_id;
+ struct rk_i2s_tdm_dev *i2s_tdm;
+ struct resource *res;
+ void __iomem *regs;
+ int ret;
+ int val;
+
+ i2s_tdm = devm_kzalloc(&pdev->dev, sizeof(*i2s_tdm), GFP_KERNEL);
+ if (!i2s_tdm)
+ return -ENOMEM;
+
+ i2s_tdm->dev = &pdev->dev;
+
+ of_id = of_match_device(rockchip_i2s_tdm_match, &pdev->dev);
+ if (!of_id || !of_id->data)
+ return -EINVAL;
+
+ spin_lock_init(&i2s_tdm->lock);
+ i2s_tdm->soc_data = (struct rk_i2s_soc_data *)of_id->data;
+
+ rockchip_i2s_tdm_init_dai(i2s_tdm);
+
+ i2s_tdm->frame_width = 64;
+ if (!of_property_read_u32(node, "rockchip,frame-width", &val)) {
+ if (val >= 32 && (val % 2 == 0) && val <= 512) {
+ i2s_tdm->frame_width = val;
+ } else {
+ dev_err(i2s_tdm->dev, "unsupported frame width: '%d'\n",
+ val);
+ return -EINVAL;
+ }
+ }
+
+ i2s_tdm->clk_trcm = TRCM_TXRX;
+ if (of_property_read_bool(node, "rockchip,trcm-sync-tx-only"))
+ i2s_tdm->clk_trcm = TRCM_TX;
+ if (of_property_read_bool(node, "rockchip,trcm-sync-rx-only")) {
+ if (i2s_tdm->clk_trcm) {
+ dev_err(i2s_tdm->dev, "invalid trcm-sync configuration\n");
+ return -EINVAL;
+ }
+ i2s_tdm->clk_trcm = TRCM_RX;
+ }
+ if (i2s_tdm->clk_trcm != TRCM_TXRX)
+ i2s_tdm_dai.symmetric_rate = 1;
+
+ i2s_tdm->tdm_fsync_half_frame =
+ of_property_read_bool(node, "rockchip,tdm-fsync-half-frame");
+
+ i2s_tdm->grf = syscon_regmap_lookup_by_phandle(node, "rockchip,grf");
+ if (IS_ERR(i2s_tdm->grf))
+ return dev_err_probe(i2s_tdm->dev, PTR_ERR(i2s_tdm->grf),
+ "Error in rockchip,grf\n");
+
+ if (i2s_tdm->clk_trcm != TRCM_TXRX) {
+ cru_node = of_parse_phandle(node, "rockchip,cru", 0);
+ i2s_tdm->cru_base = of_iomap(cru_node, 0);
+ of_node_put(cru_node);
+ if (!i2s_tdm->cru_base) {
+ dev_err(i2s_tdm->dev,
+ "Missing or unsupported rockchip,cru node\n");
+ return -ENOENT;
+ }
+
+ i2s_tdm->tx_reset_id = of_i2s_resetid_get(node, "tx-m");
+ i2s_tdm->rx_reset_id = of_i2s_resetid_get(node, "rx-m");
+ }
+
+ i2s_tdm->tx_reset = devm_reset_control_get_optional_exclusive(&pdev->dev,
+ "tx-m");
+ if (IS_ERR(i2s_tdm->tx_reset)) {
+ ret = PTR_ERR(i2s_tdm->tx_reset);
+ return dev_err_probe(i2s_tdm->dev, ret,
+ "Error in tx-m reset control\n");
+ }
+
+ i2s_tdm->rx_reset = devm_reset_control_get_optional_exclusive(&pdev->dev,
+ "rx-m");
+ if (IS_ERR(i2s_tdm->rx_reset)) {
+ ret = PTR_ERR(i2s_tdm->rx_reset);
+ return dev_err_probe(i2s_tdm->dev, ret,
+ "Error in rx-m reset control\n");
+ }
+
+ i2s_tdm->hclk = devm_clk_get(&pdev->dev, "hclk");
+ if (IS_ERR(i2s_tdm->hclk)) {
+ return dev_err_probe(i2s_tdm->dev, PTR_ERR(i2s_tdm->hclk),
+ "Failed to get clock hclk\n");
+ }
+
+ i2s_tdm->mclk_tx = devm_clk_get(&pdev->dev, "mclk_tx");
+ if (IS_ERR(i2s_tdm->mclk_tx)) {
+ return dev_err_probe(i2s_tdm->dev, PTR_ERR(i2s_tdm->mclk_tx),
+ "Failed to get clock mclk_tx\n");
+ }
+
+ i2s_tdm->mclk_rx = devm_clk_get(&pdev->dev, "mclk_rx");
+ if (IS_ERR(i2s_tdm->mclk_rx)) {
+ return dev_err_probe(i2s_tdm->dev, PTR_ERR(i2s_tdm->mclk_rx),
+ "Failed to get clock mclk_rx\n");
+ }
+
+ i2s_tdm->io_multiplex =
+ of_property_read_bool(node, "rockchip,io-multiplex");
+
+ i2s_tdm->mclk_calibrate =
+ of_property_read_bool(node, "rockchip,mclk-calibrate");
+ if (i2s_tdm->mclk_calibrate) {
+ i2s_tdm->mclk_tx_src = devm_clk_get(&pdev->dev, "mclk_tx_src");
+ if (IS_ERR(i2s_tdm->mclk_tx_src)) {
+ return dev_err_probe(i2s_tdm->dev,
+ PTR_ERR(i2s_tdm->mclk_tx_src),
+ "Failed to get clock mclk_tx_src\n");
+ }
+ i2s_tdm->mclk_rx_src = devm_clk_get(&pdev->dev, "mclk_rx_src");
+ if (IS_ERR(i2s_tdm->mclk_rx_src)) {
+ return dev_err_probe(i2s_tdm->dev,
+ PTR_ERR(i2s_tdm->mclk_rx_src),
+ "Failed to get clock mclk_rx_src\n");
+ }
+ i2s_tdm->mclk_root0 = devm_clk_get(&pdev->dev, "mclk_root0");
+ if (IS_ERR(i2s_tdm->mclk_root0)) {
+ return dev_err_probe(i2s_tdm->dev,
+ PTR_ERR(i2s_tdm->mclk_root0),
+ "Failed to get clock mclk_root0\n");
+ }
+ i2s_tdm->mclk_root1 = devm_clk_get(&pdev->dev, "mclk_root1");
+ if (IS_ERR(i2s_tdm->mclk_root1)) {
+ return dev_err_probe(i2s_tdm->dev,
+ PTR_ERR(i2s_tdm->mclk_root1),
+ "Failed to get clock mclk_root1\n");
+ }
+ }
+
+ regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+ if (IS_ERR(regs)) {
+ return dev_err_probe(i2s_tdm->dev, PTR_ERR(regs),
+ "Failed to get resource IORESOURCE_MEM\n");
+ }
+
+ i2s_tdm->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
+ &rockchip_i2s_tdm_regmap_config);
+ if (IS_ERR(i2s_tdm->regmap)) {
+ return dev_err_probe(i2s_tdm->dev, PTR_ERR(i2s_tdm->regmap),
+ "Failed to initialise regmap\n");
+ }
+
+ if (i2s_tdm->has_playback) {
+ i2s_tdm->playback_dma_data.addr = res->start + I2S_TXDR;
+ i2s_tdm->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ i2s_tdm->playback_dma_data.maxburst = 8;
+ }
+
+ if (i2s_tdm->has_capture) {
+ i2s_tdm->capture_dma_data.addr = res->start + I2S_RXDR;
+ i2s_tdm->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+ i2s_tdm->capture_dma_data.maxburst = 8;
+ }
+
+ ret = rockchip_i2s_tdm_tx_path_prepare(i2s_tdm, node);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "I2S TX path prepare failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = rockchip_i2s_tdm_rx_path_prepare(i2s_tdm, node);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "I2S RX path prepare failed: %d\n", ret);
+ return ret;
+ }
+
+ atomic_set(&i2s_tdm->refcount, 0);
+ dev_set_drvdata(&pdev->dev, i2s_tdm);
+
+ ret = clk_prepare_enable(i2s_tdm->hclk);
+ if (ret) {
+ return dev_err_probe(i2s_tdm->dev, ret,
+ "Failed to enable clock hclk\n");
+ }
+
+ ret = i2s_tdm_prepare_enable_mclk(i2s_tdm);
+ if (ret) {
+ return dev_err_probe(i2s_tdm->dev, ret,
+ "Failed to enable one or more mclks\n");
+ goto err_disable_hclk;
+ }
+
+ if (i2s_tdm->mclk_calibrate) {
+ i2s_tdm->mclk_root0_initial_freq = clk_get_rate(i2s_tdm->mclk_root0);
+ i2s_tdm->mclk_root1_initial_freq = clk_get_rate(i2s_tdm->mclk_root1);
+ i2s_tdm->mclk_root0_freq = i2s_tdm->mclk_root0_initial_freq;
+ i2s_tdm->mclk_root1_freq = i2s_tdm->mclk_root1_initial_freq;
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ regmap_update_bits(i2s_tdm->regmap, I2S_DMACR, I2S_DMACR_TDL_MASK,
+ I2S_DMACR_TDL(16));
+ regmap_update_bits(i2s_tdm->regmap, I2S_DMACR, I2S_DMACR_RDL_MASK,
+ I2S_DMACR_RDL(16));
+ regmap_update_bits(i2s_tdm->regmap, I2S_CKR, I2S_CKR_TRCM_MASK,
+ i2s_tdm->clk_trcm << I2S_CKR_TRCM_SHIFT);
+
+ if (i2s_tdm->soc_data && i2s_tdm->soc_data->init)
+ i2s_tdm->soc_data->init(&pdev->dev, res->start);
+
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &rockchip_i2s_tdm_component,
+ &i2s_tdm_dai, 1);
+
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register DAI\n");
+ goto err_suspend;
+ }
+
+ ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+ if (ret) {
+ dev_err(&pdev->dev, "Could not register PCM\n");
+ goto err_suspend;
+ }
+
+ return 0;
+
+err_suspend:
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ i2s_tdm_runtime_suspend(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
+err_disable_hclk:
+ clk_disable_unprepare(i2s_tdm->hclk);
+
+ return ret;
+}
+
+static int rockchip_i2s_tdm_remove(struct platform_device *pdev)
+{
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ i2s_tdm_runtime_suspend(&pdev->dev);
+
+ pm_runtime_disable(&pdev->dev);
+
+ return 0;
+}
+
+static int __maybe_unused rockchip_i2s_tdm_suspend(struct device *dev)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = dev_get_drvdata(dev);
+
+ regcache_mark_dirty(i2s_tdm->regmap);
+
+ return 0;
+}
+
+static int __maybe_unused rockchip_i2s_tdm_resume(struct device *dev)
+{
+ struct rk_i2s_tdm_dev *i2s_tdm = dev_get_drvdata(dev);
+ int ret;
+
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0)
+ return ret;
+ ret = regcache_sync(i2s_tdm->regmap);
+ pm_runtime_put(dev);
+
+ return ret;
+}
+
+static const struct dev_pm_ops rockchip_i2s_tdm_pm_ops = {
+ SET_RUNTIME_PM_OPS(i2s_tdm_runtime_suspend, i2s_tdm_runtime_resume,
+ NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(rockchip_i2s_tdm_suspend,
+ rockchip_i2s_tdm_resume)
+};
+
+static struct platform_driver rockchip_i2s_tdm_driver = {
+ .probe = rockchip_i2s_tdm_probe,
+ .remove = rockchip_i2s_tdm_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = of_match_ptr(rockchip_i2s_tdm_match),
+ .pm = &rockchip_i2s_tdm_pm_ops,
+ },
+};
+module_platform_driver(rockchip_i2s_tdm_driver);
+
+MODULE_DESCRIPTION("ROCKCHIP I2S/TDM ASoC Interface");
+MODULE_AUTHOR("Sugar Zhang <sugar.zhang@rock-chips.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, rockchip_i2s_tdm_match);
new file mode 100644
@@ -0,0 +1,398 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * ALSA SoC Audio Layer - Rockchip I2S/TDM Controller driver
+ *
+ * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
+ * Author: Sugar Zhang <sugar.zhang@rock-chips.com>
+ *
+ */
+
+#ifndef _ROCKCHIP_I2S_TDM_H
+#define _ROCKCHIP_I2S_TDM_H
+
+/*
+ * TXCR
+ * transmit operation control register
+ */
+#define I2S_TXCR_PATH_SHIFT(x) (23 + (x) * 2)
+#define I2S_TXCR_PATH_MASK(x) (0x3 << I2S_TXCR_PATH_SHIFT(x))
+#define I2S_TXCR_PATH(x, v) ((v) << I2S_TXCR_PATH_SHIFT(x))
+#define I2S_TXCR_RCNT_SHIFT 17
+#define I2S_TXCR_RCNT_MASK (0x3f << I2S_TXCR_RCNT_SHIFT)
+#define I2S_TXCR_CSR_SHIFT 15
+#define I2S_TXCR_CSR(x) ((x) << I2S_TXCR_CSR_SHIFT)
+#define I2S_TXCR_CSR_MASK (3 << I2S_TXCR_CSR_SHIFT)
+#define I2S_TXCR_HWT BIT(14)
+#define I2S_TXCR_SJM_SHIFT 12
+#define I2S_TXCR_SJM_R (0 << I2S_TXCR_SJM_SHIFT)
+#define I2S_TXCR_SJM_L (1 << I2S_TXCR_SJM_SHIFT)
+#define I2S_TXCR_FBM_SHIFT 11
+#define I2S_TXCR_FBM_MSB (0 << I2S_TXCR_FBM_SHIFT)
+#define I2S_TXCR_FBM_LSB (1 << I2S_TXCR_FBM_SHIFT)
+#define I2S_TXCR_IBM_SHIFT 9
+#define I2S_TXCR_IBM_NORMAL (0 << I2S_TXCR_IBM_SHIFT)
+#define I2S_TXCR_IBM_LSJM (1 << I2S_TXCR_IBM_SHIFT)
+#define I2S_TXCR_IBM_RSJM (2 << I2S_TXCR_IBM_SHIFT)
+#define I2S_TXCR_IBM_MASK (3 << I2S_TXCR_IBM_SHIFT)
+#define I2S_TXCR_PBM_SHIFT 7
+#define I2S_TXCR_PBM_MODE(x) ((x) << I2S_TXCR_PBM_SHIFT)
+#define I2S_TXCR_PBM_MASK (3 << I2S_TXCR_PBM_SHIFT)
+#define I2S_TXCR_TFS_SHIFT 5
+#define I2S_TXCR_TFS_I2S (0 << I2S_TXCR_TFS_SHIFT)
+#define I2S_TXCR_TFS_PCM (1 << I2S_TXCR_TFS_SHIFT)
+#define I2S_TXCR_TFS_TDM_PCM (2 << I2S_TXCR_TFS_SHIFT)
+#define I2S_TXCR_TFS_TDM_I2S (3 << I2S_TXCR_TFS_SHIFT)
+#define I2S_TXCR_TFS_MASK (3 << I2S_TXCR_TFS_SHIFT)
+#define I2S_TXCR_VDW_SHIFT 0
+#define I2S_TXCR_VDW(x) (((x) - 1) << I2S_TXCR_VDW_SHIFT)
+#define I2S_TXCR_VDW_MASK (0x1f << I2S_TXCR_VDW_SHIFT)
+
+/*
+ * RXCR
+ * receive operation control register
+ */
+#define I2S_RXCR_PATH_SHIFT(x) (17 + (x) * 2)
+#define I2S_RXCR_PATH_MASK(x) (0x3 << I2S_RXCR_PATH_SHIFT(x))
+#define I2S_RXCR_PATH(x, v) ((v) << I2S_RXCR_PATH_SHIFT(x))
+#define I2S_RXCR_CSR_SHIFT 15
+#define I2S_RXCR_CSR(x) ((x) << I2S_RXCR_CSR_SHIFT)
+#define I2S_RXCR_CSR_MASK (3 << I2S_RXCR_CSR_SHIFT)
+#define I2S_RXCR_HWT BIT(14)
+#define I2S_RXCR_SJM_SHIFT 12
+#define I2S_RXCR_SJM_R (0 << I2S_RXCR_SJM_SHIFT)
+#define I2S_RXCR_SJM_L (1 << I2S_RXCR_SJM_SHIFT)
+#define I2S_RXCR_FBM_SHIFT 11
+#define I2S_RXCR_FBM_MSB (0 << I2S_RXCR_FBM_SHIFT)
+#define I2S_RXCR_FBM_LSB (1 << I2S_RXCR_FBM_SHIFT)
+#define I2S_RXCR_IBM_SHIFT 9
+#define I2S_RXCR_IBM_NORMAL (0 << I2S_RXCR_IBM_SHIFT)
+#define I2S_RXCR_IBM_LSJM (1 << I2S_RXCR_IBM_SHIFT)
+#define I2S_RXCR_IBM_RSJM (2 << I2S_RXCR_IBM_SHIFT)
+#define I2S_RXCR_IBM_MASK (3 << I2S_RXCR_IBM_SHIFT)
+#define I2S_RXCR_PBM_SHIFT 7
+#define I2S_RXCR_PBM_MODE(x) ((x) << I2S_RXCR_PBM_SHIFT)
+#define I2S_RXCR_PBM_MASK (3 << I2S_RXCR_PBM_SHIFT)
+#define I2S_RXCR_TFS_SHIFT 5
+#define I2S_RXCR_TFS_I2S (0 << I2S_RXCR_TFS_SHIFT)
+#define I2S_RXCR_TFS_PCM (1 << I2S_RXCR_TFS_SHIFT)
+#define I2S_RXCR_TFS_TDM_PCM (2 << I2S_RXCR_TFS_SHIFT)
+#define I2S_RXCR_TFS_TDM_I2S (3 << I2S_RXCR_TFS_SHIFT)
+#define I2S_RXCR_TFS_MASK (3 << I2S_RXCR_TFS_SHIFT)
+#define I2S_RXCR_VDW_SHIFT 0
+#define I2S_RXCR_VDW(x) (((x) - 1) << I2S_RXCR_VDW_SHIFT)
+#define I2S_RXCR_VDW_MASK (0x1f << I2S_RXCR_VDW_SHIFT)
+
+/*
+ * CKR
+ * clock generation register
+ */
+#define I2S_CKR_TRCM_SHIFT 28
+#define I2S_CKR_TRCM(x) ((x) << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_TXRX (0 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_TXONLY (1 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_RXONLY (2 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_TRCM_MASK (3 << I2S_CKR_TRCM_SHIFT)
+#define I2S_CKR_MSS_SHIFT 27
+#define I2S_CKR_MSS_MASTER (0 << I2S_CKR_MSS_SHIFT)
+#define I2S_CKR_MSS_SLAVE (1 << I2S_CKR_MSS_SHIFT)
+#define I2S_CKR_MSS_MASK (1 << I2S_CKR_MSS_SHIFT)
+#define I2S_CKR_CKP_SHIFT 26
+#define I2S_CKR_CKP_NORMAL (0 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_INVERTED (1 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_CKP_MASK (1 << I2S_CKR_CKP_SHIFT)
+#define I2S_CKR_RLP_SHIFT 25
+#define I2S_CKR_RLP_NORMAL (0 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_RLP_INVERTED (1 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_RLP_MASK (1 << I2S_CKR_RLP_SHIFT)
+#define I2S_CKR_TLP_SHIFT 24
+#define I2S_CKR_TLP_NORMAL (0 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_TLP_INVERTED (1 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_TLP_MASK (1 << I2S_CKR_TLP_SHIFT)
+#define I2S_CKR_MDIV_SHIFT 16
+#define I2S_CKR_MDIV(x) (((x) - 1) << I2S_CKR_MDIV_SHIFT)
+#define I2S_CKR_MDIV_MASK (0xff << I2S_CKR_MDIV_SHIFT)
+#define I2S_CKR_RSD_SHIFT 8
+#define I2S_CKR_RSD(x) (((x) - 1) << I2S_CKR_RSD_SHIFT)
+#define I2S_CKR_RSD_MASK (0xff << I2S_CKR_RSD_SHIFT)
+#define I2S_CKR_TSD_SHIFT 0
+#define I2S_CKR_TSD(x) (((x) - 1) << I2S_CKR_TSD_SHIFT)
+#define I2S_CKR_TSD_MASK (0xff << I2S_CKR_TSD_SHIFT)
+
+/*
+ * FIFOLR
+ * FIFO level register
+ */
+#define I2S_FIFOLR_RFL_SHIFT 24
+#define I2S_FIFOLR_RFL_MASK (0x3f << I2S_FIFOLR_RFL_SHIFT)
+#define I2S_FIFOLR_TFL3_SHIFT 18
+#define I2S_FIFOLR_TFL3_MASK (0x3f << I2S_FIFOLR_TFL3_SHIFT)
+#define I2S_FIFOLR_TFL2_SHIFT 12
+#define I2S_FIFOLR_TFL2_MASK (0x3f << I2S_FIFOLR_TFL2_SHIFT)
+#define I2S_FIFOLR_TFL1_SHIFT 6
+#define I2S_FIFOLR_TFL1_MASK (0x3f << I2S_FIFOLR_TFL1_SHIFT)
+#define I2S_FIFOLR_TFL0_SHIFT 0
+#define I2S_FIFOLR_TFL0_MASK (0x3f << I2S_FIFOLR_TFL0_SHIFT)
+
+/*
+ * DMACR
+ * DMA control register
+ */
+#define I2S_DMACR_RDE_SHIFT 24
+#define I2S_DMACR_RDE_DISABLE (0 << I2S_DMACR_RDE_SHIFT)
+#define I2S_DMACR_RDE_ENABLE (1 << I2S_DMACR_RDE_SHIFT)
+#define I2S_DMACR_RDL_SHIFT 16
+#define I2S_DMACR_RDL(x) (((x) - 1) << I2S_DMACR_RDL_SHIFT)
+#define I2S_DMACR_RDL_MASK (0x1f << I2S_DMACR_RDL_SHIFT)
+#define I2S_DMACR_TDE_SHIFT 8
+#define I2S_DMACR_TDE_DISABLE (0 << I2S_DMACR_TDE_SHIFT)
+#define I2S_DMACR_TDE_ENABLE (1 << I2S_DMACR_TDE_SHIFT)
+#define I2S_DMACR_TDL_SHIFT 0
+#define I2S_DMACR_TDL(x) ((x) << I2S_DMACR_TDL_SHIFT)
+#define I2S_DMACR_TDL_MASK (0x1f << I2S_DMACR_TDL_SHIFT)
+
+/*
+ * INTCR
+ * interrupt control register
+ */
+#define I2S_INTCR_RFT_SHIFT 20
+#define I2S_INTCR_RFT(x) (((x) - 1) << I2S_INTCR_RFT_SHIFT)
+#define I2S_INTCR_RXOIC BIT(18)
+#define I2S_INTCR_RXOIE_SHIFT 17
+#define I2S_INTCR_RXOIE_DISABLE (0 << I2S_INTCR_RXOIE_SHIFT)
+#define I2S_INTCR_RXOIE_ENABLE (1 << I2S_INTCR_RXOIE_SHIFT)
+#define I2S_INTCR_RXFIE_SHIFT 16
+#define I2S_INTCR_RXFIE_DISABLE (0 << I2S_INTCR_RXFIE_SHIFT)
+#define I2S_INTCR_RXFIE_ENABLE (1 << I2S_INTCR_RXFIE_SHIFT)
+#define I2S_INTCR_TFT_SHIFT 4
+#define I2S_INTCR_TFT(x) (((x) - 1) << I2S_INTCR_TFT_SHIFT)
+#define I2S_INTCR_TFT_MASK (0x1f << I2S_INTCR_TFT_SHIFT)
+#define I2S_INTCR_TXUIC BIT(2)
+#define I2S_INTCR_TXUIE_SHIFT 1
+#define I2S_INTCR_TXUIE_DISABLE (0 << I2S_INTCR_TXUIE_SHIFT)
+#define I2S_INTCR_TXUIE_ENABLE (1 << I2S_INTCR_TXUIE_SHIFT)
+
+/*
+ * INTSR
+ * interrupt status register
+ */
+#define I2S_INTSR_TXEIE_SHIFT 0
+#define I2S_INTSR_TXEIE_DISABLE (0 << I2S_INTSR_TXEIE_SHIFT)
+#define I2S_INTSR_TXEIE_ENABLE (1 << I2S_INTSR_TXEIE_SHIFT)
+#define I2S_INTSR_RXOI_SHIFT 17
+#define I2S_INTSR_RXOI_INA (0 << I2S_INTSR_RXOI_SHIFT)
+#define I2S_INTSR_RXOI_ACT (1 << I2S_INTSR_RXOI_SHIFT)
+#define I2S_INTSR_RXFI_SHIFT 16
+#define I2S_INTSR_RXFI_INA (0 << I2S_INTSR_RXFI_SHIFT)
+#define I2S_INTSR_RXFI_ACT (1 << I2S_INTSR_RXFI_SHIFT)
+#define I2S_INTSR_TXUI_SHIFT 1
+#define I2S_INTSR_TXUI_INA (0 << I2S_INTSR_TXUI_SHIFT)
+#define I2S_INTSR_TXUI_ACT (1 << I2S_INTSR_TXUI_SHIFT)
+#define I2S_INTSR_TXEI_SHIFT 0
+#define I2S_INTSR_TXEI_INA (0 << I2S_INTSR_TXEI_SHIFT)
+#define I2S_INTSR_TXEI_ACT (1 << I2S_INTSR_TXEI_SHIFT)
+
+/*
+ * XFER
+ * Transfer start register
+ */
+#define I2S_XFER_RXS_SHIFT 1
+#define I2S_XFER_RXS_STOP (0 << I2S_XFER_RXS_SHIFT)
+#define I2S_XFER_RXS_START (1 << I2S_XFER_RXS_SHIFT)
+#define I2S_XFER_TXS_SHIFT 0
+#define I2S_XFER_TXS_STOP (0 << I2S_XFER_TXS_SHIFT)
+#define I2S_XFER_TXS_START (1 << I2S_XFER_TXS_SHIFT)
+
+/*
+ * CLR
+ * clear SCLK domain logic register
+ */
+#define I2S_CLR_RXC BIT(1)
+#define I2S_CLR_TXC BIT(0)
+
+/*
+ * TXDR
+ * Transimt FIFO data register, write only.
+ */
+#define I2S_TXDR_MASK (0xff)
+
+/*
+ * RXDR
+ * Receive FIFO data register, write only.
+ */
+#define I2S_RXDR_MASK (0xff)
+
+/*
+ * TDM_CTRL
+ * TDM ctrl register
+ */
+#define TDM_FSYNC_WIDTH_SEL1_MSK GENMASK(20, 18)
+#define TDM_FSYNC_WIDTH_SEL1(x) (((x) - 1) << 18)
+#define TDM_FSYNC_WIDTH_SEL0_MSK BIT(17)
+#define TDM_FSYNC_WIDTH_HALF_FRAME 0
+#define TDM_FSYNC_WIDTH_ONE_FRAME BIT(17)
+#define TDM_SHIFT_CTRL_MSK GENMASK(16, 14)
+#define TDM_SHIFT_CTRL(x) ((x) << 14)
+#define TDM_SLOT_BIT_WIDTH_MSK GENMASK(13, 9)
+#define TDM_SLOT_BIT_WIDTH(x) (((x) - 1) << 9)
+#define TDM_FRAME_WIDTH_MSK GENMASK(8, 0)
+#define TDM_FRAME_WIDTH(x) (((x) - 1) << 0)
+
+/*
+ * CLKDIV
+ * Mclk div register
+ */
+#define I2S_CLKDIV_TXM_SHIFT 0
+#define I2S_CLKDIV_TXM(x) (((x) - 1) << I2S_CLKDIV_TXM_SHIFT)
+#define I2S_CLKDIV_TXM_MASK (0xff << I2S_CLKDIV_TXM_SHIFT)
+#define I2S_CLKDIV_RXM_SHIFT 8
+#define I2S_CLKDIV_RXM(x) (((x) - 1) << I2S_CLKDIV_RXM_SHIFT)
+#define I2S_CLKDIV_RXM_MASK (0xff << I2S_CLKDIV_RXM_SHIFT)
+
+/* Clock divider id */
+enum {
+ ROCKCHIP_DIV_MCLK = 0,
+ ROCKCHIP_DIV_BCLK,
+};
+
+/* channel select */
+#define I2S_CSR_SHIFT 15
+#define I2S_CHN_2 (0 << I2S_CSR_SHIFT)
+#define I2S_CHN_4 (1 << I2S_CSR_SHIFT)
+#define I2S_CHN_6 (2 << I2S_CSR_SHIFT)
+#define I2S_CHN_8 (3 << I2S_CSR_SHIFT)
+
+/* io direction cfg register */
+#define I2S_IO_DIRECTION_MASK (7)
+#define I2S_IO_8CH_OUT_2CH_IN (7)
+#define I2S_IO_6CH_OUT_4CH_IN (3)
+#define I2S_IO_4CH_OUT_6CH_IN (1)
+#define I2S_IO_2CH_OUT_8CH_IN (0)
+
+/* I2S REGS */
+#define I2S_TXCR (0x0000)
+#define I2S_RXCR (0x0004)
+#define I2S_CKR (0x0008)
+#define I2S_TXFIFOLR (0x000c)
+#define I2S_DMACR (0x0010)
+#define I2S_INTCR (0x0014)
+#define I2S_INTSR (0x0018)
+#define I2S_XFER (0x001c)
+#define I2S_CLR (0x0020)
+#define I2S_TXDR (0x0024)
+#define I2S_RXDR (0x0028)
+#define I2S_RXFIFOLR (0x002c)
+#define I2S_TDM_TXCR (0x0030)
+#define I2S_TDM_RXCR (0x0034)
+#define I2S_CLKDIV (0x0038)
+
+#define HIWORD_UPDATE(v, h, l) (((v) << (l)) | (GENMASK((h), (l)) << 16))
+
+/* PX30 GRF CONFIGS */
+#define PX30_I2S0_CLK_IN_SRC_FROM_TX HIWORD_UPDATE(1, 13, 12)
+#define PX30_I2S0_CLK_IN_SRC_FROM_RX HIWORD_UPDATE(2, 13, 12)
+#define PX30_I2S0_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(1, 5, 5)
+#define PX30_I2S0_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(0, 5, 5)
+
+#define PX30_I2S0_CLK_TXONLY \
+ (PX30_I2S0_MCLK_OUT_SRC_FROM_TX | PX30_I2S0_CLK_IN_SRC_FROM_TX)
+
+#define PX30_I2S0_CLK_RXONLY \
+ (PX30_I2S0_MCLK_OUT_SRC_FROM_RX | PX30_I2S0_CLK_IN_SRC_FROM_RX)
+
+/* RK1808 GRF CONFIGS */
+#define RK1808_I2S0_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(1, 2, 2)
+#define RK1808_I2S0_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(0, 2, 2)
+#define RK1808_I2S0_CLK_IN_SRC_FROM_TX HIWORD_UPDATE(1, 1, 0)
+#define RK1808_I2S0_CLK_IN_SRC_FROM_RX HIWORD_UPDATE(2, 1, 0)
+
+#define RK1808_I2S0_CLK_TXONLY \
+ (RK1808_I2S0_MCLK_OUT_SRC_FROM_TX | RK1808_I2S0_CLK_IN_SRC_FROM_TX)
+
+#define RK1808_I2S0_CLK_RXONLY \
+ (RK1808_I2S0_MCLK_OUT_SRC_FROM_RX | RK1808_I2S0_CLK_IN_SRC_FROM_RX)
+
+/* RK3308 GRF CONFIGS */
+#define RK3308_I2S0_8CH_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(1, 10, 10)
+#define RK3308_I2S0_8CH_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(0, 10, 10)
+#define RK3308_I2S0_8CH_CLK_IN_RX_SRC_FROM_TX HIWORD_UPDATE(1, 9, 9)
+#define RK3308_I2S0_8CH_CLK_IN_RX_SRC_FROM_RX HIWORD_UPDATE(0, 9, 9)
+#define RK3308_I2S0_8CH_CLK_IN_TX_SRC_FROM_RX HIWORD_UPDATE(1, 8, 8)
+#define RK3308_I2S0_8CH_CLK_IN_TX_SRC_FROM_TX HIWORD_UPDATE(0, 8, 8)
+#define RK3308_I2S1_8CH_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(1, 2, 2)
+#define RK3308_I2S1_8CH_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(0, 2, 2)
+#define RK3308_I2S1_8CH_CLK_IN_RX_SRC_FROM_TX HIWORD_UPDATE(1, 1, 1)
+#define RK3308_I2S1_8CH_CLK_IN_RX_SRC_FROM_RX HIWORD_UPDATE(0, 1, 1)
+#define RK3308_I2S1_8CH_CLK_IN_TX_SRC_FROM_RX HIWORD_UPDATE(1, 0, 0)
+#define RK3308_I2S1_8CH_CLK_IN_TX_SRC_FROM_TX HIWORD_UPDATE(0, 0, 0)
+
+#define RK3308_I2S0_CLK_TXONLY \
+ (RK3308_I2S0_8CH_MCLK_OUT_SRC_FROM_TX | \
+ RK3308_I2S0_8CH_CLK_IN_RX_SRC_FROM_TX | \
+ RK3308_I2S0_8CH_CLK_IN_TX_SRC_FROM_TX)
+
+#define RK3308_I2S0_CLK_RXONLY \
+ (RK3308_I2S0_8CH_MCLK_OUT_SRC_FROM_RX | \
+ RK3308_I2S0_8CH_CLK_IN_RX_SRC_FROM_RX | \
+ RK3308_I2S0_8CH_CLK_IN_TX_SRC_FROM_RX)
+
+#define RK3308_I2S1_CLK_TXONLY \
+ (RK3308_I2S1_8CH_MCLK_OUT_SRC_FROM_TX | \
+ RK3308_I2S1_8CH_CLK_IN_RX_SRC_FROM_TX | \
+ RK3308_I2S1_8CH_CLK_IN_TX_SRC_FROM_TX)
+
+#define RK3308_I2S1_CLK_RXONLY \
+ (RK3308_I2S1_8CH_MCLK_OUT_SRC_FROM_RX | \
+ RK3308_I2S1_8CH_CLK_IN_RX_SRC_FROM_RX | \
+ RK3308_I2S1_8CH_CLK_IN_TX_SRC_FROM_RX)
+
+/* RK3568 GRF CONFIGS */
+#define RK3568_I2S1_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(1, 5, 5)
+#define RK3568_I2S1_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(0, 5, 5)
+
+#define RK3568_I2S1_CLK_TXONLY \
+ RK3568_I2S1_MCLK_OUT_SRC_FROM_TX
+
+#define RK3568_I2S1_CLK_RXONLY \
+ RK3568_I2S1_MCLK_OUT_SRC_FROM_RX
+
+#define RK3568_I2S3_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(1, 15, 15)
+#define RK3568_I2S3_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(0, 15, 15)
+#define RK3568_I2S3_SCLK_SRC_FROM_TX HIWORD_UPDATE(1, 7, 7)
+#define RK3568_I2S3_SCLK_SRC_FROM_RX HIWORD_UPDATE(0, 7, 7)
+#define RK3568_I2S3_LRCK_SRC_FROM_TX HIWORD_UPDATE(1, 6, 6)
+#define RK3568_I2S3_LRCK_SRC_FROM_RX HIWORD_UPDATE(0, 6, 6)
+
+#define RK3568_I2S3_MCLK_TXONLY \
+ RK3568_I2S3_MCLK_OUT_SRC_FROM_TX
+
+#define RK3568_I2S3_CLK_TXONLY \
+ (RK3568_I2S3_SCLK_SRC_FROM_TX | \
+ RK3568_I2S3_LRCK_SRC_FROM_TX)
+
+#define RK3568_I2S3_MCLK_RXONLY \
+ RK3568_I2S3_MCLK_OUT_SRC_FROM_RX
+
+#define RK3568_I2S3_CLK_RXONLY \
+ (RK3568_I2S3_SCLK_SRC_FROM_RX | \
+ RK3568_I2S3_LRCK_SRC_FROM_RX)
+
+#define RK3568_I2S3_MCLK_IE HIWORD_UPDATE(0, 3, 3)
+#define RK3568_I2S3_MCLK_OE HIWORD_UPDATE(1, 3, 3)
+#define RK3568_I2S2_MCLK_IE HIWORD_UPDATE(0, 2, 2)
+#define RK3568_I2S2_MCLK_OE HIWORD_UPDATE(1, 2, 2)
+#define RK3568_I2S1_MCLK_TX_IE HIWORD_UPDATE(0, 1, 1)
+#define RK3568_I2S1_MCLK_TX_OE HIWORD_UPDATE(1, 1, 1)
+#define RK3568_I2S1_MCLK_RX_IE HIWORD_UPDATE(0, 0, 0)
+#define RK3568_I2S1_MCLK_RX_OE HIWORD_UPDATE(1, 0, 0)
+
+/* RV1126 GRF CONFIGS */
+#define RV1126_I2S0_MCLK_OUT_SRC_FROM_TX HIWORD_UPDATE(0, 9, 9)
+#define RV1126_I2S0_MCLK_OUT_SRC_FROM_RX HIWORD_UPDATE(1, 9, 9)
+
+#define RV1126_I2S0_CLK_TXONLY \
+ RV1126_I2S0_MCLK_OUT_SRC_FROM_TX
+
+#define RV1126_I2S0_CLK_RXONLY \
+ RV1126_I2S0_MCLK_OUT_SRC_FROM_RX
+
+#endif /* _ROCKCHIP_I2S_TDM_H */
This commit adds support for the rockchip i2s-tdm controller, which enables audio output on the following rockchip SoCs: - px30 - rk1808 - rk3308 - rk3566 - rk3568 - rv1126 This is a cleaned up version of the downstream vendor kernel's driver. It can be enabled through the SND_SOC_ROCKCHIP_I2S_TDM configuration option. Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com> --- MAINTAINERS | 6 + sound/soc/rockchip/Kconfig | 11 + sound/soc/rockchip/Makefile | 2 + sound/soc/rockchip/rockchip_i2s_tdm.c | 1832 +++++++++++++++++++++++++ sound/soc/rockchip/rockchip_i2s_tdm.h | 398 ++++++ 5 files changed, 2249 insertions(+) create mode 100644 sound/soc/rockchip/rockchip_i2s_tdm.c create mode 100644 sound/soc/rockchip/rockchip_i2s_tdm.h