diff options
Diffstat (limited to 'drivers/media/video/s5p-tv')
| -rw-r--r-- | drivers/media/video/s5p-tv/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/hdmi_drv.c | 120 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/hdmiphy_drv.c | 12 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/mixer_drv.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/mixer_video.c | 1 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/sdo_drv.c | 26 | ||||
| -rw-r--r-- | drivers/media/video/s5p-tv/sii9234_drv.c | 432 |
8 files changed, 527 insertions, 78 deletions
diff --git a/drivers/media/video/s5p-tv/Kconfig b/drivers/media/video/s5p-tv/Kconfig index f2a09779ec8..f248b285672 100644 --- a/drivers/media/video/s5p-tv/Kconfig +++ b/drivers/media/video/s5p-tv/Kconfig @@ -46,6 +46,16 @@ config VIDEO_SAMSUNG_S5P_HDMIPHY as module. It is an I2C driver, that exposes a V4L2 subdev for use by other drivers. +config VIDEO_SAMSUNG_S5P_SII9234 + tristate "Samsung SII9234 Driver" + depends on VIDEO_DEV && VIDEO_V4L2 && I2C + depends on VIDEO_SAMSUNG_S5P_TV + help + Say Y here if you want support for the MHL interface + in S5P Samsung SoC. The driver can be compiled + as module. It is an I2C driver, that exposes a V4L2 + subdev for use by other drivers. + config VIDEO_SAMSUNG_S5P_SDO tristate "Samsung Analog TV Driver" depends on VIDEO_DEV && VIDEO_V4L2 diff --git a/drivers/media/video/s5p-tv/Makefile b/drivers/media/video/s5p-tv/Makefile index 37e4c17663b..f49e756a2fd 100644 --- a/drivers/media/video/s5p-tv/Makefile +++ b/drivers/media/video/s5p-tv/Makefile @@ -8,6 +8,8 @@ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_HDMIPHY) += s5p-hdmiphy.o s5p-hdmiphy-y += hdmiphy_drv.o +obj-$(CONFIG_VIDEO_SAMSUNG_S5P_SII9234) += s5p-sii9234.o +s5p-sii9234-y += sii9234_drv.o obj-$(CONFIG_VIDEO_SAMSUNG_S5P_HDMI) += s5p-hdmi.o s5p-hdmi-y += hdmi_drv.o obj-$(CONFIG_VIDEO_SAMSUNG_S5P_SDO) += s5p-sdo.o diff --git a/drivers/media/video/s5p-tv/hdmi_drv.c b/drivers/media/video/s5p-tv/hdmi_drv.c index 8b41a0410ab..4865d25a0e5 100644 --- a/drivers/media/video/s5p-tv/hdmi_drv.c +++ b/drivers/media/video/s5p-tv/hdmi_drv.c @@ -30,6 +30,7 @@ #include <linux/clk.h> #include <linux/regulator/consumer.h> +#include <media/s5p_hdmi.h> #include <media/v4l2-common.h> #include <media/v4l2-dev.h> #include <media/v4l2-device.h> @@ -66,6 +67,8 @@ struct hdmi_device { struct v4l2_device v4l2_dev; /** subdev of HDMIPHY interface */ struct v4l2_subdev *phy_sd; + /** subdev of MHL interface */ + struct v4l2_subdev *mhl_sd; /** configuration of current graphic mode */ const struct hdmi_preset_conf *cur_conf; /** current preset */ @@ -74,10 +77,6 @@ struct hdmi_device { struct hdmi_resources res; }; -struct hdmi_driver_data { - int hdmiphy_bus; -}; - struct hdmi_tg_regs { u8 cmd; u8 h_fsz_l; @@ -129,23 +128,11 @@ struct hdmi_preset_conf { struct v4l2_mbus_framefmt mbus_fmt; }; -/* I2C module and id for HDMIPHY */ -static struct i2c_board_info hdmiphy_info = { - I2C_BOARD_INFO("hdmiphy", 0x38), -}; - -static struct hdmi_driver_data hdmi_driver_data[] = { - { .hdmiphy_bus = 3 }, - { .hdmiphy_bus = 8 }, -}; - static struct platform_device_id hdmi_driver_types[] = { { .name = "s5pv210-hdmi", - .driver_data = (unsigned long)&hdmi_driver_data[0], }, { .name = "exynos4-hdmi", - .driver_data = (unsigned long)&hdmi_driver_data[1], }, { /* end node */ } @@ -587,7 +574,15 @@ static int hdmi_streamon(struct hdmi_device *hdev) if (tries == 0) { dev_err(dev, "hdmiphy's pll could not reach steady state.\n"); v4l2_subdev_call(hdev->phy_sd, video, s_stream, 0); - hdmi_dumpregs(hdev, "s_stream"); + hdmi_dumpregs(hdev, "hdmiphy - s_stream"); + return -EIO; + } + + /* starting MHL */ + ret = v4l2_subdev_call(hdev->mhl_sd, video, s_stream, 1); + if (hdev->mhl_sd && ret) { + v4l2_subdev_call(hdev->phy_sd, video, s_stream, 0); + hdmi_dumpregs(hdev, "mhl - s_stream"); return -EIO; } @@ -618,6 +613,7 @@ static int hdmi_streamoff(struct hdmi_device *hdev) clk_set_parent(res->sclk_hdmi, res->sclk_pixel); clk_enable(res->sclk_hdmi); + v4l2_subdev_call(hdev->mhl_sd, video, s_stream, 0); v4l2_subdev_call(hdev->phy_sd, video, s_stream, 0); hdmi_dumpregs(hdev, "streamoff"); @@ -739,6 +735,7 @@ static int hdmi_runtime_suspend(struct device *dev) struct hdmi_device *hdev = sd_to_hdmi_dev(sd); dev_dbg(dev, "%s\n", __func__); + v4l2_subdev_call(hdev->mhl_sd, core, s_power, 0); hdmi_resource_poweroff(&hdev->res); return 0; } @@ -757,6 +754,11 @@ static int hdmi_runtime_resume(struct device *dev) if (ret) goto fail; + /* starting MHL */ + ret = v4l2_subdev_call(hdev->mhl_sd, core, s_power, 1); + if (hdev->mhl_sd && ret) + goto fail; + dev_dbg(dev, "poweron succeed\n"); return 0; @@ -867,15 +869,21 @@ static int __devinit hdmi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct resource *res; - struct i2c_adapter *phy_adapter; + struct i2c_adapter *adapter; struct v4l2_subdev *sd; struct hdmi_device *hdmi_dev = NULL; - struct hdmi_driver_data *drv_data; + struct s5p_hdmi_platform_data *pdata = dev->platform_data; int ret; dev_dbg(dev, "probe start\n"); - hdmi_dev = kzalloc(sizeof(*hdmi_dev), GFP_KERNEL); + if (!pdata) { + dev_err(dev, "platform data is missing\n"); + ret = -ENODEV; + goto fail; + } + + hdmi_dev = devm_kzalloc(&pdev->dev, sizeof(*hdmi_dev), GFP_KERNEL); if (!hdmi_dev) { dev_err(dev, "out of memory\n"); ret = -ENOMEM; @@ -886,7 +894,7 @@ static int __devinit hdmi_probe(struct platform_device *pdev) ret = hdmi_resources_init(hdmi_dev); if (ret) - goto fail_hdev; + goto fail; /* mapping HDMI registers */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -896,24 +904,26 @@ static int __devinit hdmi_probe(struct platform_device *pdev) goto fail_init; } - hdmi_dev->regs = ioremap(res->start, resource_size(res)); + hdmi_dev->regs = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); if (hdmi_dev->regs == NULL) { dev_err(dev, "register mapping failed.\n"); ret = -ENXIO; - goto fail_hdev; + goto fail_init; } res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (res == NULL) { dev_err(dev, "get interrupt resource failed.\n"); ret = -ENXIO; - goto fail_regs; + goto fail_init; } - ret = request_irq(res->start, hdmi_irq_handler, 0, "hdmi", hdmi_dev); + ret = devm_request_irq(&pdev->dev, res->start, hdmi_irq_handler, 0, + "hdmi", hdmi_dev); if (ret) { dev_err(dev, "request interrupt failed.\n"); - goto fail_regs; + goto fail_init; } hdmi_dev->irq = res->start; @@ -924,28 +934,54 @@ static int __devinit hdmi_probe(struct platform_device *pdev) ret = v4l2_device_register(NULL, &hdmi_dev->v4l2_dev); if (ret) { dev_err(dev, "could not register v4l2 device.\n"); - goto fail_irq; + goto fail_init; } - drv_data = (struct hdmi_driver_data *) - platform_get_device_id(pdev)->driver_data; - phy_adapter = i2c_get_adapter(drv_data->hdmiphy_bus); - if (phy_adapter == NULL) { - dev_err(dev, "adapter request failed\n"); + /* testing if hdmiphy info is present */ + if (!pdata->hdmiphy_info) { + dev_err(dev, "hdmiphy info is missing in platform data\n"); + ret = -ENXIO; + goto fail_vdev; + } + + adapter = i2c_get_adapter(pdata->hdmiphy_bus); + if (adapter == NULL) { + dev_err(dev, "hdmiphy adapter request failed\n"); ret = -ENXIO; goto fail_vdev; } hdmi_dev->phy_sd = v4l2_i2c_new_subdev_board(&hdmi_dev->v4l2_dev, - phy_adapter, &hdmiphy_info, NULL); + adapter, pdata->hdmiphy_info, NULL); /* on failure or not adapter is no longer useful */ - i2c_put_adapter(phy_adapter); + i2c_put_adapter(adapter); if (hdmi_dev->phy_sd == NULL) { dev_err(dev, "missing subdev for hdmiphy\n"); ret = -ENODEV; goto fail_vdev; } + /* initialization of MHL interface if present */ + if (pdata->mhl_info) { + adapter = i2c_get_adapter(pdata->mhl_bus); + if (adapter == NULL) { + dev_err(dev, "MHL adapter request failed\n"); + ret = -ENXIO; + goto fail_vdev; + } + + hdmi_dev->mhl_sd = v4l2_i2c_new_subdev_board( + &hdmi_dev->v4l2_dev, adapter, + pdata->mhl_info, NULL); + /* on failure or not adapter is no longer useful */ + i2c_put_adapter(adapter); + if (hdmi_dev->mhl_sd == NULL) { + dev_err(dev, "missing subdev for MHL\n"); + ret = -ENODEV; + goto fail_vdev; + } + } + clk_enable(hdmi_dev->res.hdmi); pm_runtime_enable(dev); @@ -962,25 +998,16 @@ static int __devinit hdmi_probe(struct platform_device *pdev) /* storing subdev for call that have only access to struct device */ dev_set_drvdata(dev, sd); - dev_info(dev, "probe sucessful\n"); + dev_info(dev, "probe successful\n"); return 0; fail_vdev: v4l2_device_unregister(&hdmi_dev->v4l2_dev); -fail_irq: - free_irq(hdmi_dev->irq, hdmi_dev); - -fail_regs: - iounmap(hdmi_dev->regs); - fail_init: hdmi_resources_cleanup(hdmi_dev); -fail_hdev: - kfree(hdmi_dev); - fail: dev_err(dev, "probe failed\n"); return ret; @@ -996,11 +1023,8 @@ static int __devexit hdmi_remove(struct platform_device *pdev) clk_disable(hdmi_dev->res.hdmi); v4l2_device_unregister(&hdmi_dev->v4l2_dev); disable_irq(hdmi_dev->irq); - free_irq(hdmi_dev->irq, hdmi_dev); - iounmap(hdmi_dev->regs); hdmi_resources_cleanup(hdmi_dev); - kfree(hdmi_dev); - dev_info(dev, "remove sucessful\n"); + dev_info(dev, "remove successful\n"); return 0; } diff --git a/drivers/media/video/s5p-tv/hdmiphy_drv.c b/drivers/media/video/s5p-tv/hdmiphy_drv.c index 6693f4aff10..0afef77747e 100644 --- a/drivers/media/video/s5p-tv/hdmiphy_drv.c +++ b/drivers/media/video/s5p-tv/hdmiphy_drv.c @@ -175,14 +175,4 @@ static struct i2c_driver hdmiphy_driver = { .id_table = hdmiphy_id, }; -static int __init hdmiphy_init(void) -{ - return i2c_add_driver(&hdmiphy_driver); -} -module_init(hdmiphy_init); - -static void __exit hdmiphy_exit(void) -{ - i2c_del_driver(&hdmiphy_driver); -} -module_exit(hdmiphy_exit); +module_i2c_driver(hdmiphy_driver); diff --git a/drivers/media/video/s5p-tv/mixer_drv.c b/drivers/media/video/s5p-tv/mixer_drv.c index 00643094b22..a2c0c25ad13 100644 --- a/drivers/media/video/s5p-tv/mixer_drv.c +++ b/drivers/media/video/s5p-tv/mixer_drv.c @@ -444,7 +444,7 @@ static int __devexit mxr_remove(struct platform_device *pdev) kfree(mdev); - dev_info(dev, "remove sucessful\n"); + dev_info(dev, "remove successful\n"); return 0; } diff --git a/drivers/media/video/s5p-tv/mixer_video.c b/drivers/media/video/s5p-tv/mixer_video.c index 7884baeff76..f7ca5cc143c 100644 --- a/drivers/media/video/s5p-tv/mixer_video.c +++ b/drivers/media/video/s5p-tv/mixer_video.c @@ -58,7 +58,6 @@ static struct v4l2_subdev *find_and_register_subdev( } done: - put_driver(drv); return sd; } diff --git a/drivers/media/video/s5p-tv/sdo_drv.c b/drivers/media/video/s5p-tv/sdo_drv.c index 059e7749ce9..f6bca2c20e8 100644 --- a/drivers/media/video/s5p-tv/sdo_drv.c +++ b/drivers/media/video/s5p-tv/sdo_drv.c @@ -301,7 +301,7 @@ static int __devinit sdo_probe(struct platform_device *pdev) struct clk *sclk_vpll; dev_info(dev, "probe start\n"); - sdev = kzalloc(sizeof *sdev, GFP_KERNEL); + sdev = devm_kzalloc(&pdev->dev, sizeof *sdev, GFP_KERNEL); if (!sdev) { dev_err(dev, "not enough memory.\n"); ret = -ENOMEM; @@ -314,14 +314,14 @@ static int __devinit sdo_probe(struct platform_device *pdev) if (res == NULL) { dev_err(dev, "get memory resource failed.\n"); ret = -ENXIO; - goto fail_sdev; + goto fail; } - sdev->regs = ioremap(res->start, resource_size(res)); + sdev->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res)); if (sdev->regs == NULL) { dev_err(dev, "register mapping failed.\n"); ret = -ENXIO; - goto fail_sdev; + goto fail; } /* acquiring interrupt */ @@ -329,12 +329,13 @@ static int __devinit sdo_probe(struct platform_device *pdev) if (res == NULL) { dev_err(dev, "get interrupt resource failed.\n"); ret = -ENXIO; - goto fail_regs; + goto fail; } - ret = request_irq(res->start, sdo_irq_handler, 0, "s5p-sdo", sdev); + ret = devm_request_irq(&pdev->dev, res->start, sdo_irq_handler, 0, + "s5p-sdo", sdev); if (ret) { dev_err(dev, "request interrupt failed.\n"); - goto fail_regs; + goto fail; } sdev->irq = res->start; @@ -343,7 +344,7 @@ static int __devinit sdo_probe(struct platform_device *pdev) if (IS_ERR_OR_NULL(sdev->sclk_dac)) { dev_err(dev, "failed to get clock 'sclk_dac'\n"); ret = -ENXIO; - goto fail_irq; + goto fail; } sdev->dac = clk_get(dev, "dac"); if (IS_ERR_OR_NULL(sdev->dac)) { @@ -415,12 +416,6 @@ fail_dac: clk_put(sdev->dac); fail_sclk_dac: clk_put(sdev->sclk_dac); -fail_irq: - free_irq(sdev->irq, sdev); -fail_regs: - iounmap(sdev->regs); -fail_sdev: - kfree(sdev); fail: dev_info(dev, "probe failed\n"); return ret; @@ -439,9 +434,6 @@ static int __devexit sdo_remove(struct platform_device *pdev) clk_put(sdev->dacphy); clk_put(sdev->dac); clk_put(sdev->sclk_dac); - free_irq(sdev->irq, sdev); - iounmap(sdev->regs); - kfree(sdev); dev_info(&pdev->dev, "remove successful\n"); return 0; diff --git a/drivers/media/video/s5p-tv/sii9234_drv.c b/drivers/media/video/s5p-tv/sii9234_drv.c new file mode 100644 index 00000000000..0f31eccd7b8 --- /dev/null +++ b/drivers/media/video/s5p-tv/sii9234_drv.c @@ -0,0 +1,432 @@ +/* + * Samsung MHL interface driver + * + * Copyright (C) 2011 Samsung Electronics Co.Ltd + * Author: Tomasz Stanislawski <t.stanislaws@samsung.com> + * + * 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. + */ + +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/freezer.h> +#include <linux/gpio.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kthread.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/machine.h> +#include <linux/slab.h> + +#include <mach/gpio.h> +#include <plat/gpio-cfg.h> + +#include <media/sii9234.h> +#include <media/v4l2-subdev.h> + +MODULE_AUTHOR("Tomasz Stanislawski <t.stanislaws@samsung.com>"); +MODULE_DESCRIPTION("Samsung MHL interface driver"); +MODULE_LICENSE("GPL"); + +struct sii9234_context { + struct i2c_client *client; + struct regulator *power; + int gpio_n_reset; + struct v4l2_subdev sd; +}; + +static inline struct sii9234_context *sd_to_context(struct v4l2_subdev *sd) +{ + return container_of(sd, struct sii9234_context, sd); +} + +static inline int sii9234_readb(struct i2c_client *client, int addr) +{ + return i2c_smbus_read_byte_data(client, addr); +} + +static inline int sii9234_writeb(struct i2c_client *client, int addr, int value) +{ + return i2c_smbus_write_byte_data(client, addr, value); +} + +static inline int sii9234_writeb_mask(struct i2c_client *client, int addr, + int value, int mask) +{ + int ret; + + ret = i2c_smbus_read_byte_data(client, addr); + if (ret < 0) + return ret; + ret = (ret & ~mask) | (value & mask); + return i2c_smbus_write_byte_data(client, addr, ret); +} + +static inline int sii9234_readb_idx(struct i2c_client *client, int addr) +{ + int ret; + ret = i2c_smbus_write_byte_data(client, 0xbc, addr >> 8); + if (ret < 0) + return ret; + ret = i2c_smbus_write_byte_data(client, 0xbd, addr & 0xff); + if (ret < 0) + return ret; + return i2c_smbus_read_byte_data(client, 0xbe); +} + +static inline int sii9234_writeb_idx(struct i2c_client *client, int addr, + int value) +{ + int ret; + ret = i2c_smbus_write_byte_data(client, 0xbc, addr >> 8); + if (ret < 0) + return ret; + ret = i2c_smbus_write_byte_data(client, 0xbd, addr & 0xff); + if (ret < 0) + return ret; + ret = i2c_smbus_write_byte_data(client, 0xbe, value); + return ret; +} + +static inline int sii9234_writeb_idx_mask(struct i2c_client *client, int addr, + int value, int mask) +{ + int ret; + + ret = sii9234_readb_idx(client, addr); + if (ret < 0) + return ret; + ret = (ret & ~mask) | (value & mask); + return sii9234_writeb_idx(client, addr, ret); +} + +static int sii9234_reset(struct sii9234_context *ctx) +{ + struct i2c_client *client = ctx->client; + struct device *dev = &client->dev; + int ret, tries; + + gpio_direction_output(ctx->gpio_n_reset, 1); + mdelay(1); + gpio_direction_output(ctx->gpio_n_reset, 0); + mdelay(1); + gpio_direction_output(ctx->gpio_n_reset, 1); + mdelay(1); + + /* going to TTPI mode */ + ret = sii9234_writeb(client, 0xc7, 0); + if (ret < 0) { + dev_err(dev, "failed to set TTPI mode\n"); + return ret; + } + for (tries = 0; tries < 100 ; ++tries) { + ret = sii9234_readb(client, 0x1b); + if (ret > 0) + break; + if (ret < 0) { + dev_err(dev, "failed to reset device\n"); + return -EIO; + } + mdelay(1); + } + if (tries == 100) { + dev_err(dev, "maximal number of tries reached\n"); + return -EIO; + } + + return 0; +} + +static int sii9234_verify_version(struct i2c_client *client) +{ + struct device *dev = &client->dev; + int family, rev, tpi_rev, dev_id, sub_id, hdcp, id; + + family = sii9234_readb(client, 0x1b); + rev = sii9234_readb(client, 0x1c) & 0x0f; + tpi_rev = sii9234_readb(client, 0x1d) & 0x7f; + dev_id = sii9234_readb_idx(client, 0x0103); + sub_id = sii9234_readb_idx(client, 0x0102); + hdcp = sii9234_readb(client, 0x30); + + if (family < 0 || rev < 0 || tpi_rev < 0 || dev_id < 0 || + sub_id < 0 || hdcp < 0) { + dev_err(dev, "failed to read chip's version\n"); + return -EIO; + } + + id = (dev_id << 8) | sub_id; + + dev_info(dev, "chip: SiL%02x family: %02x, rev: %02x\n", + id, family, rev); + dev_info(dev, "tpi_rev:%02x, hdcp: %02x\n", tpi_rev, hdcp); + if (id != 0x9234) { + dev_err(dev, "not supported chip\n"); + return -ENODEV; + } + + return 0; +} + +static u8 data[][3] = { +/* setup from driver created by doonsoo45.kim */ + { 0x01, 0x05, 0x04 }, /* Enable Auto soft reset on SCDT = 0 */ + { 0x01, 0x08, 0x35 }, /* Power Up TMDS Tx Core */ + { 0x01, 0x0d, 0x1c }, /* HDMI Transcode mode enable */ + { 0x01, 0x2b, 0x01 }, /* Enable HDCP Compliance workaround */ + { 0x01, 0x79, 0x40 }, /* daniel test...MHL_INT */ + { 0x01, 0x80, 0x34 }, /* Enable Rx PLL Clock Value */ + { 0x01, 0x90, 0x27 }, /* Enable CBUS discovery */ + { 0x01, 0x91, 0xe5 }, /* Skip RGND detection */ + { 0x01, 0x92, 0x46 }, /* Force MHD mode */ + { 0x01, 0x93, 0xdc }, /* Disable CBUS pull-up during RGND measurement */ + { 0x01, 0x94, 0x66 }, /* 1.8V CBUS VTH & GND threshold */ + { 0x01, 0x95, 0x31 }, /* RGND block & single discovery attempt */ + { 0x01, 0x96, 0x22 }, /* use 1K and 2K setting */ + { 0x01, 0xa0, 0x10 }, /* SIMG: Term mode */ + { 0x01, 0xa1, 0xfc }, /* Disable internal Mobile HD driver */ + { 0x01, 0xa3, 0xfa }, /* SIMG: Output Swing default EB, 3x Clk Mult */ + { 0x01, 0xa5, 0x80 }, /* SIMG: RGND Hysterisis, 3x mode for Beast */ + { 0x01, 0xa6, 0x0c }, /* SIMG: Swing Offset */ + { 0x02, 0x3d, 0x3f }, /* Power up CVCC 1.2V core */ + { 0x03, 0x00, 0x00 }, /* SIMG: correcting HW default */ + { 0x03, 0x11, 0x01 }, /* Enable TxPLL Clock */ + { 0x03, 0x12, 0x15 }, /* Enable Tx Clock Path & Equalizer */ + { 0x03, 0x13, 0x60 }, /* SIMG: Set termination value */ + { 0x03, 0x14, 0xf0 }, /* SIMG: Change CKDT level */ + { 0x03, 0x17, 0x07 }, /* SIMG: PLL Calrefsel */ + { 0x03, 0x1a, 0x20 }, /* VCO Cal */ + { 0x03, 0x22, 0xe0 }, /* SIMG: Auto EQ */ + { 0x03, 0x23, 0xc0 }, /* SIMG: Auto EQ */ + { 0x03, 0x24, 0xa0 }, /* SIMG: Auto EQ */ + { 0x03, 0x25, 0x80 }, /* SIMG: Auto EQ */ + { 0x03, 0x26, 0x60 }, /* SIMG: Auto EQ */ + { 0x03, 0x27, 0x40 }, /* SIMG: Auto EQ */ + { 0x03, 0x28, 0x20 }, /* SIMG: Auto EQ */ + { 0x03, 0x29, 0x00 }, /* SIMG: Auto EQ */ + { 0x03, 0x31, 0x0b }, /* SIMG: Rx PLL BW value from I2C BW ~ 4MHz */ + { 0x03, 0x45, 0x06 }, /* SIMG: DPLL Mode */ + { 0x03, 0x4b, 0x06 }, /* SIMG: Correcting HW default */ + { 0x03, 0x4c, 0xa0 }, /* Manual zone control */ + { 0x03, 0x4d, 0x02 }, /* SIMG: PLL Mode Value (order is important) */ +}; + +static int sii9234_set_internal(struct sii9234_context *ctx) +{ + struct i2c_client *client = ctx->client; + int i, ret; + + for (i = 0; i < ARRAY_SIZE(data); ++i) { + int addr = (data[i][0] << 8) | data[i][1]; + ret = sii9234_writeb_idx(client, addr, data[i][2]); + if (ret < 0) + return ret; + } + return 0; +} + +static int sii9234_runtime_suspend(struct device *dev) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct sii9234_context *ctx = sd_to_context(sd); + struct i2c_client *client = ctx->client; + + dev_info(dev, "suspend start\n"); + + sii9234_writeb_mask(client, 0x1e, 3, 3); + regulator_disable(ctx->power); + + return 0; +} + +static int sii9234_runtime_resume(struct device *dev) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct sii9234_context *ctx = sd_to_context(sd); + struct i2c_client *client = ctx->client; + int ret; + + dev_info(dev, "resume start\n"); + regulator_enable(ctx->power); + + ret = sii9234_reset(ctx); + if (ret) + goto fail; + + /* enable tpi */ + ret = sii9234_writeb_mask(client, 0x1e, 1, 0); + if (ret < 0) + goto fail; + ret = sii9234_set_internal(ctx); + if (ret < 0) + goto fail; + + return 0; + +fail: + dev_err(dev, "failed to resume\n"); + regulator_disable(ctx->power); + + return ret; +} + +static const struct dev_pm_ops sii9234_pm_ops = { + .runtime_suspend = sii9234_runtime_suspend, + .runtime_resume = sii9234_runtime_resume, +}; + +static int sii9234_s_power(struct v4l2_subdev *sd, int on) +{ + struct sii9234_context *ctx = sd_to_context(sd); + int ret; + + if (on) + ret = pm_runtime_get_sync(&ctx->client->dev); + else + ret = pm_runtime_put(&ctx->client->dev); + /* only values < 0 indicate errors */ + return IS_ERR_VALUE(ret) ? ret : 0; +} + +static int sii9234_s_stream(struct v4l2_subdev *sd, int enable) +{ + struct sii9234_context *ctx = sd_to_context(sd); + + /* (dis/en)able TDMS output */ + sii9234_writeb_mask(ctx->client, 0x1a, enable ? 0 : ~0 , 1 << 4); + return 0; +} + +static const struct v4l2_subdev_core_ops sii9234_core_ops = { + .s_power = sii9234_s_power, +}; + +static const struct v4l2_subdev_video_ops sii9234_video_ops = { + .s_stream = sii9234_s_stream, +}; + +static const struct v4l2_subdev_ops sii9234_ops = { + .core = &sii9234_core_ops, + .video = &sii9234_video_ops, +}; + +static int __devinit sii9234_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct sii9234_platform_data *pdata = dev->platform_data; + struct sii9234_context *ctx; + int ret; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) { + dev_err(dev, "out of memory\n"); + ret = -ENOMEM; + goto fail; + } + ctx->client = client; + + ctx->power = regulator_get(dev, "hdmi-en"); + if (IS_ERR(ctx->power)) { + dev_err(dev, "failed to acquire regulator hdmi-en\n"); + ret = PTR_ERR(ctx->power); + goto fail_ctx; + } + + ctx->gpio_n_reset = pdata->gpio_n_reset; + ret = gpio_request(ctx->gpio_n_reset, "MHL_RST"); + if (ret) { + dev_err(dev, "failed to acquire MHL_RST gpio\n"); + goto fail_power; + } + + v4l2_i2c_subdev_init(&ctx->sd, client, &sii9234_ops); + + pm_runtime_enable(dev); + + /* enable device */ + ret = pm_runtime_get_sync(dev); + if (ret) + goto fail_pm; + + /* verify chip version */ + ret = sii9234_verify_version(client); + if (ret) + goto fail_pm_get; + + /* stop processing */ + pm_runtime_put(dev); + + dev_info(dev, "probe successful\n"); + + return 0; + +fail_pm_get: + pm_runtime_put_sync(dev); + +fail_pm: + pm_runtime_disable(dev); + gpio_free(ctx->gpio_n_reset); + +fail_power: + regulator_put(ctx->power); + +fail_ctx: + kfree(ctx); + +fail: + dev_err(dev, "probe failed\n"); + + return ret; +} + +static int __devexit sii9234_remove(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct sii9234_context *ctx = sd_to_context(sd); + + pm_runtime_disable(dev); + gpio_free(ctx->gpio_n_reset); + regulator_put(ctx->power); + kfree(ctx); + + dev_info(dev, "remove successful\n"); + + return 0; +} + + +static const struct i2c_device_id sii9234_id[] = { + { "SII9234", 0 }, + { }, +}; + +MODULE_DEVICE_TABLE(i2c, sii9234_id); +static struct i2c_driver sii9234_driver = { + .driver = { + .name = "sii9234", + .owner = THIS_MODULE, + .pm = &sii9234_pm_ops, + }, + .probe = sii9234_probe, + .remove = __devexit_p(sii9234_remove), + .id_table = sii9234_id, +}; + +static int __init sii9234_init(void) +{ + return i2c_add_driver(&sii9234_driver); +} +module_init(sii9234_init); + +static void __exit sii9234_exit(void) +{ + i2c_del_driver(&sii9234_driver); +} +module_exit(sii9234_exit); |