diff options
Diffstat (limited to 'drivers/gpu/drm/zte/zx_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/zte/zx_hdmi.c | 760 |
1 files changed, 0 insertions, 760 deletions
diff --git a/drivers/gpu/drm/zte/zx_hdmi.c b/drivers/gpu/drm/zte/zx_hdmi.c deleted file mode 100644 index cd79ca0a92a9..000000000000 --- a/drivers/gpu/drm/zte/zx_hdmi.c +++ /dev/null @@ -1,760 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright 2016 Linaro Ltd. - * Copyright 2016 ZTE Corporation. - */ - -#include <linux/clk.h> -#include <linux/component.h> -#include <linux/delay.h> -#include <linux/err.h> -#include <linux/hdmi.h> -#include <linux/irq.h> -#include <linux/mfd/syscon.h> -#include <linux/module.h> -#include <linux/mutex.h> -#include <linux/of_device.h> - -#include <drm/drm_atomic_helper.h> -#include <drm/drm_edid.h> -#include <drm/drm_of.h> -#include <drm/drm_probe_helper.h> -#include <drm/drm_print.h> -#include <drm/drm_simple_kms_helper.h> - -#include <sound/hdmi-codec.h> - -#include "zx_hdmi_regs.h" -#include "zx_vou.h" - -#define ZX_HDMI_INFOFRAME_SIZE 31 -#define DDC_SEGMENT_ADDR 0x30 - -struct zx_hdmi_i2c { - struct i2c_adapter adap; - struct mutex lock; -}; - -struct zx_hdmi { - struct drm_connector connector; - struct drm_encoder encoder; - struct zx_hdmi_i2c *ddc; - struct device *dev; - struct drm_device *drm; - void __iomem *mmio; - struct clk *cec_clk; - struct clk *osc_clk; - struct clk *xclk; - bool sink_is_hdmi; - bool sink_has_audio; - struct platform_device *audio_pdev; -}; - -#define to_zx_hdmi(x) container_of(x, struct zx_hdmi, x) - -static inline u8 hdmi_readb(struct zx_hdmi *hdmi, u16 offset) -{ - return readl_relaxed(hdmi->mmio + offset * 4); -} - -static inline void hdmi_writeb(struct zx_hdmi *hdmi, u16 offset, u8 val) -{ - writel_relaxed(val, hdmi->mmio + offset * 4); -} - -static inline void hdmi_writeb_mask(struct zx_hdmi *hdmi, u16 offset, - u8 mask, u8 val) -{ - u8 tmp; - - tmp = hdmi_readb(hdmi, offset); - tmp = (tmp & ~mask) | (val & mask); - hdmi_writeb(hdmi, offset, tmp); -} - -static int zx_hdmi_infoframe_trans(struct zx_hdmi *hdmi, - union hdmi_infoframe *frame, u8 fsel) -{ - u8 buffer[ZX_HDMI_INFOFRAME_SIZE]; - int num; - int i; - - hdmi_writeb(hdmi, TPI_INFO_FSEL, fsel); - - num = hdmi_infoframe_pack(frame, buffer, ZX_HDMI_INFOFRAME_SIZE); - if (num < 0) { - DRM_DEV_ERROR(hdmi->dev, "failed to pack infoframe: %d\n", num); - return num; - } - - for (i = 0; i < num; i++) - hdmi_writeb(hdmi, TPI_INFO_B0 + i, buffer[i]); - - hdmi_writeb_mask(hdmi, TPI_INFO_EN, TPI_INFO_TRANS_RPT, - TPI_INFO_TRANS_RPT); - hdmi_writeb_mask(hdmi, TPI_INFO_EN, TPI_INFO_TRANS_EN, - TPI_INFO_TRANS_EN); - - return num; -} - -static int zx_hdmi_config_video_vsi(struct zx_hdmi *hdmi, - struct drm_display_mode *mode) -{ - union hdmi_infoframe frame; - int ret; - - ret = drm_hdmi_vendor_infoframe_from_display_mode(&frame.vendor.hdmi, - &hdmi->connector, - mode); - if (ret) { - DRM_DEV_ERROR(hdmi->dev, "failed to get vendor infoframe: %d\n", - ret); - return ret; - } - - return zx_hdmi_infoframe_trans(hdmi, &frame, FSEL_VSIF); -} - -static int zx_hdmi_config_video_avi(struct zx_hdmi *hdmi, - struct drm_display_mode *mode) -{ - union hdmi_infoframe frame; - int ret; - - ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi, - &hdmi->connector, - mode); - if (ret) { - DRM_DEV_ERROR(hdmi->dev, "failed to get avi infoframe: %d\n", - ret); - return ret; - } - - /* We always use YUV444 for HDMI output. */ - frame.avi.colorspace = HDMI_COLORSPACE_YUV444; - - return zx_hdmi_infoframe_trans(hdmi, &frame, FSEL_AVI); -} - -static void zx_hdmi_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adj_mode) -{ - struct zx_hdmi *hdmi = to_zx_hdmi(encoder); - - if (hdmi->sink_is_hdmi) { - zx_hdmi_config_video_avi(hdmi, mode); - zx_hdmi_config_video_vsi(hdmi, mode); - } -} - -static void zx_hdmi_phy_start(struct zx_hdmi *hdmi) -{ - /* Copy from ZTE BSP code */ - hdmi_writeb(hdmi, 0x222, 0x0); - hdmi_writeb(hdmi, 0x224, 0x4); - hdmi_writeb(hdmi, 0x909, 0x0); - hdmi_writeb(hdmi, 0x7b0, 0x90); - hdmi_writeb(hdmi, 0x7b1, 0x00); - hdmi_writeb(hdmi, 0x7b2, 0xa7); - hdmi_writeb(hdmi, 0x7b8, 0xaa); - hdmi_writeb(hdmi, 0x7b2, 0xa7); - hdmi_writeb(hdmi, 0x7b3, 0x0f); - hdmi_writeb(hdmi, 0x7b4, 0x0f); - hdmi_writeb(hdmi, 0x7b5, 0x55); - hdmi_writeb(hdmi, 0x7b7, 0x03); - hdmi_writeb(hdmi, 0x7b9, 0x12); - hdmi_writeb(hdmi, 0x7ba, 0x32); - hdmi_writeb(hdmi, 0x7bc, 0x68); - hdmi_writeb(hdmi, 0x7be, 0x40); - hdmi_writeb(hdmi, 0x7bf, 0x84); - hdmi_writeb(hdmi, 0x7c1, 0x0f); - hdmi_writeb(hdmi, 0x7c8, 0x02); - hdmi_writeb(hdmi, 0x7c9, 0x03); - hdmi_writeb(hdmi, 0x7ca, 0x40); - hdmi_writeb(hdmi, 0x7dc, 0x31); - hdmi_writeb(hdmi, 0x7e2, 0x04); - hdmi_writeb(hdmi, 0x7e0, 0x06); - hdmi_writeb(hdmi, 0x7cb, 0x68); - hdmi_writeb(hdmi, 0x7f9, 0x02); - hdmi_writeb(hdmi, 0x7b6, 0x02); - hdmi_writeb(hdmi, 0x7f3, 0x0); -} - -static void zx_hdmi_hw_enable(struct zx_hdmi *hdmi) -{ - /* Enable pclk */ - hdmi_writeb_mask(hdmi, CLKPWD, CLKPWD_PDIDCK, CLKPWD_PDIDCK); - - /* Enable HDMI for TX */ - hdmi_writeb_mask(hdmi, FUNC_SEL, FUNC_HDMI_EN, FUNC_HDMI_EN); - - /* Enable deep color packet */ - hdmi_writeb_mask(hdmi, P2T_CTRL, P2T_DC_PKT_EN, P2T_DC_PKT_EN); - - /* Enable HDMI/MHL mode for output */ - hdmi_writeb_mask(hdmi, TEST_TXCTRL, TEST_TXCTRL_HDMI_MODE, - TEST_TXCTRL_HDMI_MODE); - - /* Configure reg_qc_sel */ - hdmi_writeb(hdmi, HDMICTL4, 0x3); - - /* Enable interrupt */ - hdmi_writeb_mask(hdmi, INTR1_MASK, INTR1_MONITOR_DETECT, - INTR1_MONITOR_DETECT); - - /* Start up phy */ - zx_hdmi_phy_start(hdmi); -} - -static void zx_hdmi_hw_disable(struct zx_hdmi *hdmi) -{ - /* Disable interrupt */ - hdmi_writeb_mask(hdmi, INTR1_MASK, INTR1_MONITOR_DETECT, 0); - - /* Disable deep color packet */ - hdmi_writeb_mask(hdmi, P2T_CTRL, P2T_DC_PKT_EN, P2T_DC_PKT_EN); - - /* Disable HDMI for TX */ - hdmi_writeb_mask(hdmi, FUNC_SEL, FUNC_HDMI_EN, 0); - - /* Disable pclk */ - hdmi_writeb_mask(hdmi, CLKPWD, CLKPWD_PDIDCK, 0); -} - -static void zx_hdmi_encoder_enable(struct drm_encoder *encoder) -{ - struct zx_hdmi *hdmi = to_zx_hdmi(encoder); - - clk_prepare_enable(hdmi->cec_clk); - clk_prepare_enable(hdmi->osc_clk); - clk_prepare_enable(hdmi->xclk); - - zx_hdmi_hw_enable(hdmi); - - vou_inf_enable(VOU_HDMI, encoder->crtc); -} - -static void zx_hdmi_encoder_disable(struct drm_encoder *encoder) -{ - struct zx_hdmi *hdmi = to_zx_hdmi(encoder); - - vou_inf_disable(VOU_HDMI, encoder->crtc); - - zx_hdmi_hw_disable(hdmi); - - clk_disable_unprepare(hdmi->xclk); - clk_disable_unprepare(hdmi->osc_clk); - clk_disable_unprepare(hdmi->cec_clk); -} - -static const struct drm_encoder_helper_funcs zx_hdmi_encoder_helper_funcs = { - .enable = zx_hdmi_encoder_enable, - .disable = zx_hdmi_encoder_disable, - .mode_set = zx_hdmi_encoder_mode_set, -}; - -static int zx_hdmi_connector_get_modes(struct drm_connector *connector) -{ - struct zx_hdmi *hdmi = to_zx_hdmi(connector); - struct edid *edid; - int ret; - - edid = drm_get_edid(connector, &hdmi->ddc->adap); - if (!edid) - return 0; - - hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid); - hdmi->sink_has_audio = drm_detect_monitor_audio(edid); - drm_connector_update_edid_property(connector, edid); - ret = drm_add_edid_modes(connector, edid); - kfree(edid); - - return ret; -} - -static enum drm_mode_status -zx_hdmi_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - return MODE_OK; -} - -static struct drm_connector_helper_funcs zx_hdmi_connector_helper_funcs = { - .get_modes = zx_hdmi_connector_get_modes, - .mode_valid = zx_hdmi_connector_mode_valid, -}; - -static enum drm_connector_status -zx_hdmi_connector_detect(struct drm_connector *connector, bool force) -{ - struct zx_hdmi *hdmi = to_zx_hdmi(connector); - - return (hdmi_readb(hdmi, TPI_HPD_RSEN) & TPI_HPD_CONNECTION) ? - connector_status_connected : connector_status_disconnected; -} - -static const struct drm_connector_funcs zx_hdmi_connector_funcs = { - .fill_modes = drm_helper_probe_single_connector_modes, - .detect = zx_hdmi_connector_detect, - .destroy = drm_connector_cleanup, - .reset = drm_atomic_helper_connector_reset, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, -}; - -static int zx_hdmi_register(struct drm_device *drm, struct zx_hdmi *hdmi) -{ - struct drm_encoder *encoder = &hdmi->encoder; - - encoder->possible_crtcs = VOU_CRTC_MASK; - - drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS); - drm_encoder_helper_add(encoder, &zx_hdmi_encoder_helper_funcs); - - hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD; - - drm_connector_init_with_ddc(drm, &hdmi->connector, - &zx_hdmi_connector_funcs, - DRM_MODE_CONNECTOR_HDMIA, - &hdmi->ddc->adap); - drm_connector_helper_add(&hdmi->connector, - &zx_hdmi_connector_helper_funcs); - - drm_connector_attach_encoder(&hdmi->connector, encoder); - - return 0; -} - -static irqreturn_t zx_hdmi_irq_thread(int irq, void *dev_id) -{ - struct zx_hdmi *hdmi = dev_id; - - drm_helper_hpd_irq_event(hdmi->connector.dev); - - return IRQ_HANDLED; -} - -static irqreturn_t zx_hdmi_irq_handler(int irq, void *dev_id) -{ - struct zx_hdmi *hdmi = dev_id; - u8 lstat; - - lstat = hdmi_readb(hdmi, L1_INTR_STAT); - - /* Monitor detect/HPD interrupt */ - if (lstat & L1_INTR_STAT_INTR1) { - u8 stat; - - stat = hdmi_readb(hdmi, INTR1_STAT); - hdmi_writeb(hdmi, INTR1_STAT, stat); - - if (stat & INTR1_MONITOR_DETECT) - return IRQ_WAKE_THREAD; - } - - return IRQ_NONE; -} - -static int zx_hdmi_audio_startup(struct device *dev, void *data) -{ - struct zx_hdmi *hdmi = dev_get_drvdata(dev); - struct drm_encoder *encoder = &hdmi->encoder; - - vou_inf_hdmi_audio_sel(encoder->crtc, VOU_HDMI_AUD_SPDIF); - - return 0; -} - -static void zx_hdmi_audio_shutdown(struct device *dev, void *data) -{ - struct zx_hdmi *hdmi = dev_get_drvdata(dev); - - /* Disable audio input */ - hdmi_writeb_mask(hdmi, AUD_EN, AUD_IN_EN, 0); -} - -static inline int zx_hdmi_audio_get_n(unsigned int fs) -{ - unsigned int n; - - if (fs && (fs % 44100) == 0) - n = 6272 * (fs / 44100); - else - n = fs * 128 / 1000; - - return n; -} - -static int zx_hdmi_audio_hw_params(struct device *dev, - void *data, - struct hdmi_codec_daifmt *daifmt, - struct hdmi_codec_params *params) -{ - struct zx_hdmi *hdmi = dev_get_drvdata(dev); - struct hdmi_audio_infoframe *cea = ¶ms->cea; - union hdmi_infoframe frame; - int n; - - /* We only support spdif for now */ - if (daifmt->fmt != HDMI_SPDIF) { - DRM_DEV_ERROR(hdmi->dev, "invalid daifmt %d\n", daifmt->fmt); - return -EINVAL; - } - - switch (params->sample_width) { - case 16: - hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, SPDIF_SAMPLE_SIZE_MASK, - SPDIF_SAMPLE_SIZE_16BIT); - break; - case 20: - hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, SPDIF_SAMPLE_SIZE_MASK, - SPDIF_SAMPLE_SIZE_20BIT); - break; - case 24: - hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, SPDIF_SAMPLE_SIZE_MASK, - SPDIF_SAMPLE_SIZE_24BIT); - break; - default: - DRM_DEV_ERROR(hdmi->dev, "invalid sample width %d\n", - params->sample_width); - return -EINVAL; - } - - /* CTS is calculated by hardware, and we only need to take care of N */ - n = zx_hdmi_audio_get_n(params->sample_rate); - hdmi_writeb(hdmi, N_SVAL1, n & 0xff); - hdmi_writeb(hdmi, N_SVAL2, (n >> 8) & 0xff); - hdmi_writeb(hdmi, N_SVAL3, (n >> 16) & 0xf); - - /* Enable spdif mode */ - hdmi_writeb_mask(hdmi, AUD_MODE, SPDIF_EN, SPDIF_EN); - - /* Enable audio input */ - hdmi_writeb_mask(hdmi, AUD_EN, AUD_IN_EN, AUD_IN_EN); - - memcpy(&frame.audio, cea, sizeof(*cea)); - - return zx_hdmi_infoframe_trans(hdmi, &frame, FSEL_AUDIO); -} - -static int zx_hdmi_audio_mute(struct device *dev, void *data, - bool enable, int direction) -{ - struct zx_hdmi *hdmi = dev_get_drvdata(dev); - - if (enable) - hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, TPI_AUD_MUTE, - TPI_AUD_MUTE); - else - hdmi_writeb_mask(hdmi, TPI_AUD_CONFIG, TPI_AUD_MUTE, 0); - - return 0; -} - -static int zx_hdmi_audio_get_eld(struct device *dev, void *data, - uint8_t *buf, size_t len) -{ - struct zx_hdmi *hdmi = dev_get_drvdata(dev); - struct drm_connector *connector = &hdmi->connector; - - memcpy(buf, connector->eld, min(sizeof(connector->eld), len)); - - return 0; -} - -static const struct hdmi_codec_ops zx_hdmi_codec_ops = { - .audio_startup = zx_hdmi_audio_startup, - .hw_params = zx_hdmi_audio_hw_params, - .audio_shutdown = zx_hdmi_audio_shutdown, - .mute_stream = zx_hdmi_audio_mute, - .get_eld = zx_hdmi_audio_get_eld, - .no_capture_mute = 1, -}; - -static struct hdmi_codec_pdata zx_hdmi_codec_pdata = { - .ops = &zx_hdmi_codec_ops, - .spdif = 1, -}; - -static int zx_hdmi_audio_register(struct zx_hdmi *hdmi) -{ - struct platform_device *pdev; - - pdev = platform_device_register_data(hdmi->dev, HDMI_CODEC_DRV_NAME, - PLATFORM_DEVID_AUTO, - &zx_hdmi_codec_pdata, - sizeof(zx_hdmi_codec_pdata)); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - hdmi->audio_pdev = pdev; - - return 0; -} - -static int zx_hdmi_i2c_read(struct zx_hdmi *hdmi, struct i2c_msg *msg) -{ - int len = msg->len; - u8 *buf = msg->buf; - int retry = 0; - int ret = 0; - - /* Bits [9:8] of bytes */ - hdmi_writeb(hdmi, ZX_DDC_DIN_CNT2, (len >> 8) & 0xff); - /* Bits [7:0] of bytes */ - hdmi_writeb(hdmi, ZX_DDC_DIN_CNT1, len & 0xff); - - /* Clear FIFO */ - hdmi_writeb_mask(hdmi, ZX_DDC_CMD, DDC_CMD_MASK, DDC_CMD_CLEAR_FIFO); - - /* Kick off the read */ - hdmi_writeb_mask(hdmi, ZX_DDC_CMD, DDC_CMD_MASK, - DDC_CMD_SEQUENTIAL_READ); - - while (len > 0) { - int cnt, i; - - /* FIFO needs some time to get ready */ - usleep_range(500, 1000); - - cnt = hdmi_readb(hdmi, ZX_DDC_DOUT_CNT) & DDC_DOUT_CNT_MASK; - if (cnt == 0) { - if (++retry > 5) { - DRM_DEV_ERROR(hdmi->dev, - "DDC FIFO read timed out!"); - return -ETIMEDOUT; - } - continue; - } - - for (i = 0; i < cnt; i++) - *buf++ = hdmi_readb(hdmi, ZX_DDC_DATA); - len -= cnt; - } - - return ret; -} - -static int zx_hdmi_i2c_write(struct zx_hdmi *hdmi, struct i2c_msg *msg) -{ - /* - * The DDC I2C adapter is only for reading EDID data, so we assume - * that the write to this adapter must be the EDID data offset. - */ - if ((msg->len != 1) || - ((msg->addr != DDC_ADDR) && (msg->addr != DDC_SEGMENT_ADDR))) - return -EINVAL; - - if (msg->addr == DDC_SEGMENT_ADDR) - hdmi_writeb(hdmi, ZX_DDC_SEGM, msg->addr << 1); - else if (msg->addr == DDC_ADDR) - hdmi_writeb(hdmi, ZX_DDC_ADDR, msg->addr << 1); - - hdmi_writeb(hdmi, ZX_DDC_OFFSET, msg->buf[0]); - - return 0; -} - -static int zx_hdmi_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, - int num) -{ - struct zx_hdmi *hdmi = i2c_get_adapdata(adap); - struct zx_hdmi_i2c *ddc = hdmi->ddc; - int i, ret = 0; - - mutex_lock(&ddc->lock); - - /* Enable DDC master access */ - hdmi_writeb_mask(hdmi, TPI_DDC_MASTER_EN, HW_DDC_MASTER, HW_DDC_MASTER); - - for (i = 0; i < num; i++) { - DRM_DEV_DEBUG(hdmi->dev, - "xfer: num: %d/%d, len: %d, flags: %#x\n", - i + 1, num, msgs[i].len, msgs[i].flags); - - if (msgs[i].flags & I2C_M_RD) - ret = zx_hdmi_i2c_read(hdmi, &msgs[i]); - else - ret = zx_hdmi_i2c_write(hdmi, &msgs[i]); - - if (ret < 0) - break; - } - - if (!ret) - ret = num; - - /* Disable DDC master access */ - hdmi_writeb_mask(hdmi, TPI_DDC_MASTER_EN, HW_DDC_MASTER, 0); - - mutex_unlock(&ddc->lock); - - return ret; -} - -static u32 zx_hdmi_i2c_func(struct i2c_adapter *adapter) -{ - return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; -} - -static const struct i2c_algorithm zx_hdmi_algorithm = { - .master_xfer = zx_hdmi_i2c_xfer, - .functionality = zx_hdmi_i2c_func, -}; - -static int zx_hdmi_ddc_register(struct zx_hdmi *hdmi) -{ - struct i2c_adapter *adap; - struct zx_hdmi_i2c *ddc; - int ret; - - ddc = devm_kzalloc(hdmi->dev, sizeof(*ddc), GFP_KERNEL); - if (!ddc) - return -ENOMEM; - - hdmi->ddc = ddc; - mutex_init(&ddc->lock); - - adap = &ddc->adap; - adap->owner = THIS_MODULE; - adap->class = I2C_CLASS_DDC; - adap->dev.parent = hdmi->dev; - adap->algo = &zx_hdmi_algorithm; - snprintf(adap->name, sizeof(adap->name), "zx hdmi i2c"); - - ret = i2c_add_adapter(adap); - if (ret) { - DRM_DEV_ERROR(hdmi->dev, "failed to add I2C adapter: %d\n", - ret); - return ret; - } - - i2c_set_adapdata(adap, hdmi); - - return 0; -} - -static int zx_hdmi_bind(struct device *dev, struct device *master, void *data) -{ - struct platform_device *pdev = to_platform_device(dev); - struct drm_device *drm = data; - struct resource *res; - struct zx_hdmi *hdmi; - int irq; - int ret; - - hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); - if (!hdmi) - return -ENOMEM; - - hdmi->dev = dev; - hdmi->drm = drm; - - dev_set_drvdata(dev, hdmi); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hdmi->mmio = devm_ioremap_resource(dev, res); - if (IS_ERR(hdmi->mmio)) { - ret = PTR_ERR(hdmi->mmio); - DRM_DEV_ERROR(dev, "failed to remap hdmi region: %d\n", ret); - return ret; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; - - hdmi->cec_clk = devm_clk_get(hdmi->dev, "osc_cec"); - if (IS_ERR(hdmi->cec_clk)) { - ret = PTR_ERR(hdmi->cec_clk); - DRM_DEV_ERROR(dev, "failed to get cec_clk: %d\n", ret); - return ret; - } - - hdmi->osc_clk = devm_clk_get(hdmi->dev, "osc_clk"); - if (IS_ERR(hdmi->osc_clk)) { - ret = PTR_ERR(hdmi->osc_clk); - DRM_DEV_ERROR(dev, "failed to get osc_clk: %d\n", ret); - return ret; - } - - hdmi->xclk = devm_clk_get(hdmi->dev, "xclk"); - if (IS_ERR(hdmi->xclk)) { - ret = PTR_ERR(hdmi->xclk); - DRM_DEV_ERROR(dev, "failed to get xclk: %d\n", ret); - return ret; - } - - ret = zx_hdmi_ddc_register(hdmi); - if (ret) { - DRM_DEV_ERROR(dev, "failed to register ddc: %d\n", ret); - return ret; - } - - ret = zx_hdmi_audio_register(hdmi); - if (ret) { - DRM_DEV_ERROR(dev, "failed to register audio: %d\n", ret); - return ret; - } - - ret = zx_hdmi_register(drm, hdmi); - if (ret) { - DRM_DEV_ERROR(dev, "failed to register hdmi: %d\n", ret); - return ret; - } - - ret = devm_request_threaded_irq(dev, irq, zx_hdmi_irq_handler, - zx_hdmi_irq_thread, IRQF_SHARED, - dev_name(dev), hdmi); - if (ret) { - DRM_DEV_ERROR(dev, "failed to request threaded irq: %d\n", ret); - return ret; - } - - return 0; -} - -static void zx_hdmi_unbind(struct device *dev, struct device *master, - void *data) -{ - struct zx_hdmi *hdmi = dev_get_drvdata(dev); - - hdmi->connector.funcs->destroy(&hdmi->connector); - hdmi->encoder.funcs->destroy(&hdmi->encoder); - - if (hdmi->audio_pdev) - platform_device_unregister(hdmi->audio_pdev); -} - -static const struct component_ops zx_hdmi_component_ops = { - .bind = zx_hdmi_bind, - .unbind = zx_hdmi_unbind, -}; - -static int zx_hdmi_probe(struct platform_device *pdev) -{ - return component_add(&pdev->dev, &zx_hdmi_component_ops); -} - -static int zx_hdmi_remove(struct platform_device *pdev) -{ - component_del(&pdev->dev, &zx_hdmi_component_ops); - return 0; -} - -static const struct of_device_id zx_hdmi_of_match[] = { - { .compatible = "zte,zx296718-hdmi", }, - { /* end */ }, -}; -MODULE_DEVICE_TABLE(of, zx_hdmi_of_match); - -struct platform_driver zx_hdmi_driver = { - .probe = zx_hdmi_probe, - .remove = zx_hdmi_remove, - .driver = { - .name = "zx-hdmi", - .of_match_table = zx_hdmi_of_match, - }, -}; |