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path: root/drivers/media/video/s5p-fimc/mipi-csis.c
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Diffstat (limited to 'drivers/media/video/s5p-fimc/mipi-csis.c')
-rw-r--r--drivers/media/video/s5p-fimc/mipi-csis.c722
1 files changed, 0 insertions, 722 deletions
diff --git a/drivers/media/video/s5p-fimc/mipi-csis.c b/drivers/media/video/s5p-fimc/mipi-csis.c
deleted file mode 100644
index 5e898432883a..000000000000
--- a/drivers/media/video/s5p-fimc/mipi-csis.c
+++ /dev/null
@@ -1,722 +0,0 @@
-/*
- * Samsung S5P/EXYNOS4 SoC series MIPI-CSI receiver driver
- *
- * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd.
- * Sylwester Nawrocki, <s.nawrocki@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/memory.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-subdev.h>
-#include <linux/platform_data/mipi-csis.h>
-#include "mipi-csis.h"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Debug level (0-1)");
-
-/* Register map definition */
-
-/* CSIS global control */
-#define S5PCSIS_CTRL 0x00
-#define S5PCSIS_CTRL_DPDN_DEFAULT (0 << 31)
-#define S5PCSIS_CTRL_DPDN_SWAP (1 << 31)
-#define S5PCSIS_CTRL_ALIGN_32BIT (1 << 20)
-#define S5PCSIS_CTRL_UPDATE_SHADOW (1 << 16)
-#define S5PCSIS_CTRL_WCLK_EXTCLK (1 << 8)
-#define S5PCSIS_CTRL_RESET (1 << 4)
-#define S5PCSIS_CTRL_ENABLE (1 << 0)
-
-/* D-PHY control */
-#define S5PCSIS_DPHYCTRL 0x04
-#define S5PCSIS_DPHYCTRL_HSS_MASK (0x1f << 27)
-#define S5PCSIS_DPHYCTRL_ENABLE (0x1f << 0)
-
-#define S5PCSIS_CONFIG 0x08
-#define S5PCSIS_CFG_FMT_YCBCR422_8BIT (0x1e << 2)
-#define S5PCSIS_CFG_FMT_RAW8 (0x2a << 2)
-#define S5PCSIS_CFG_FMT_RAW10 (0x2b << 2)
-#define S5PCSIS_CFG_FMT_RAW12 (0x2c << 2)
-/* User defined formats, x = 1...4 */
-#define S5PCSIS_CFG_FMT_USER(x) ((0x30 + x - 1) << 2)
-#define S5PCSIS_CFG_FMT_MASK (0x3f << 2)
-#define S5PCSIS_CFG_NR_LANE_MASK 3
-
-/* Interrupt mask. */
-#define S5PCSIS_INTMSK 0x10
-#define S5PCSIS_INTMSK_EN_ALL 0xf000003f
-#define S5PCSIS_INTSRC 0x14
-
-/* Pixel resolution */
-#define S5PCSIS_RESOL 0x2c
-#define CSIS_MAX_PIX_WIDTH 0xffff
-#define CSIS_MAX_PIX_HEIGHT 0xffff
-
-enum {
- CSIS_CLK_MUX,
- CSIS_CLK_GATE,
-};
-
-static char *csi_clock_name[] = {
- [CSIS_CLK_MUX] = "sclk_csis",
- [CSIS_CLK_GATE] = "csis",
-};
-#define NUM_CSIS_CLOCKS ARRAY_SIZE(csi_clock_name)
-
-static const char * const csis_supply_name[] = {
- "vdd11", /* 1.1V or 1.2V (s5pc100) MIPI CSI suppply */
- "vdd18", /* VDD 1.8V and MIPI CSI PLL supply */
-};
-#define CSIS_NUM_SUPPLIES ARRAY_SIZE(csis_supply_name)
-
-enum {
- ST_POWERED = 1,
- ST_STREAMING = 2,
- ST_SUSPENDED = 4,
-};
-
-/**
- * struct csis_state - the driver's internal state data structure
- * @lock: mutex serializing the subdev and power management operations,
- * protecting @format and @flags members
- * @pads: CSIS pads array
- * @sd: v4l2_subdev associated with CSIS device instance
- * @pdev: CSIS platform device
- * @regs: mmaped I/O registers memory
- * @clock: CSIS clocks
- * @irq: requested s5p-mipi-csis irq number
- * @flags: the state variable for power and streaming control
- * @csis_fmt: current CSIS pixel format
- * @format: common media bus format for the source and sink pad
- */
-struct csis_state {
- struct mutex lock;
- struct media_pad pads[CSIS_PADS_NUM];
- struct v4l2_subdev sd;
- struct platform_device *pdev;
- void __iomem *regs;
- struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES];
- struct clk *clock[NUM_CSIS_CLOCKS];
- int irq;
- u32 flags;
- const struct csis_pix_format *csis_fmt;
- struct v4l2_mbus_framefmt format;
-};
-
-/**
- * struct csis_pix_format - CSIS pixel format description
- * @pix_width_alignment: horizontal pixel alignment, width will be
- * multiple of 2^pix_width_alignment
- * @code: corresponding media bus code
- * @fmt_reg: S5PCSIS_CONFIG register value
- * @data_alignment: MIPI-CSI data alignment in bits
- */
-struct csis_pix_format {
- unsigned int pix_width_alignment;
- enum v4l2_mbus_pixelcode code;
- u32 fmt_reg;
- u8 data_alignment;
-};
-
-static const struct csis_pix_format s5pcsis_formats[] = {
- {
- .code = V4L2_MBUS_FMT_VYUY8_2X8,
- .fmt_reg = S5PCSIS_CFG_FMT_YCBCR422_8BIT,
- .data_alignment = 32,
- }, {
- .code = V4L2_MBUS_FMT_JPEG_1X8,
- .fmt_reg = S5PCSIS_CFG_FMT_USER(1),
- .data_alignment = 32,
- },
-};
-
-#define s5pcsis_write(__csis, __r, __v) writel(__v, __csis->regs + __r)
-#define s5pcsis_read(__csis, __r) readl(__csis->regs + __r)
-
-static struct csis_state *sd_to_csis_state(struct v4l2_subdev *sdev)
-{
- return container_of(sdev, struct csis_state, sd);
-}
-
-static const struct csis_pix_format *find_csis_format(
- struct v4l2_mbus_framefmt *mf)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(s5pcsis_formats); i++)
- if (mf->code == s5pcsis_formats[i].code)
- return &s5pcsis_formats[i];
- return NULL;
-}
-
-static void s5pcsis_enable_interrupts(struct csis_state *state, bool on)
-{
- u32 val = s5pcsis_read(state, S5PCSIS_INTMSK);
-
- val = on ? val | S5PCSIS_INTMSK_EN_ALL :
- val & ~S5PCSIS_INTMSK_EN_ALL;
- s5pcsis_write(state, S5PCSIS_INTMSK, val);
-}
-
-static void s5pcsis_reset(struct csis_state *state)
-{
- u32 val = s5pcsis_read(state, S5PCSIS_CTRL);
-
- s5pcsis_write(state, S5PCSIS_CTRL, val | S5PCSIS_CTRL_RESET);
- udelay(10);
-}
-
-static void s5pcsis_system_enable(struct csis_state *state, int on)
-{
- u32 val;
-
- val = s5pcsis_read(state, S5PCSIS_CTRL);
- if (on)
- val |= S5PCSIS_CTRL_ENABLE;
- else
- val &= ~S5PCSIS_CTRL_ENABLE;
- s5pcsis_write(state, S5PCSIS_CTRL, val);
-
- val = s5pcsis_read(state, S5PCSIS_DPHYCTRL);
- if (on)
- val |= S5PCSIS_DPHYCTRL_ENABLE;
- else
- val &= ~S5PCSIS_DPHYCTRL_ENABLE;
- s5pcsis_write(state, S5PCSIS_DPHYCTRL, val);
-}
-
-/* Called with the state.lock mutex held */
-static void __s5pcsis_set_format(struct csis_state *state)
-{
- struct v4l2_mbus_framefmt *mf = &state->format;
- u32 val;
-
- v4l2_dbg(1, debug, &state->sd, "fmt: %d, %d x %d\n",
- mf->code, mf->width, mf->height);
-
- /* Color format */
- val = s5pcsis_read(state, S5PCSIS_CONFIG);
- val = (val & ~S5PCSIS_CFG_FMT_MASK) | state->csis_fmt->fmt_reg;
- s5pcsis_write(state, S5PCSIS_CONFIG, val);
-
- /* Pixel resolution */
- val = (mf->width << 16) | mf->height;
- s5pcsis_write(state, S5PCSIS_RESOL, val);
-}
-
-static void s5pcsis_set_hsync_settle(struct csis_state *state, int settle)
-{
- u32 val = s5pcsis_read(state, S5PCSIS_DPHYCTRL);
-
- val = (val & ~S5PCSIS_DPHYCTRL_HSS_MASK) | (settle << 27);
- s5pcsis_write(state, S5PCSIS_DPHYCTRL, val);
-}
-
-static void s5pcsis_set_params(struct csis_state *state)
-{
- struct s5p_platform_mipi_csis *pdata = state->pdev->dev.platform_data;
- u32 val;
-
- val = s5pcsis_read(state, S5PCSIS_CONFIG);
- val = (val & ~S5PCSIS_CFG_NR_LANE_MASK) | (pdata->lanes - 1);
- s5pcsis_write(state, S5PCSIS_CONFIG, val);
-
- __s5pcsis_set_format(state);
- s5pcsis_set_hsync_settle(state, pdata->hs_settle);
-
- val = s5pcsis_read(state, S5PCSIS_CTRL);
- if (state->csis_fmt->data_alignment == 32)
- val |= S5PCSIS_CTRL_ALIGN_32BIT;
- else /* 24-bits */
- val &= ~S5PCSIS_CTRL_ALIGN_32BIT;
- /* Not using external clock. */
- val &= ~S5PCSIS_CTRL_WCLK_EXTCLK;
- s5pcsis_write(state, S5PCSIS_CTRL, val);
-
- /* Update the shadow register. */
- val = s5pcsis_read(state, S5PCSIS_CTRL);
- s5pcsis_write(state, S5PCSIS_CTRL, val | S5PCSIS_CTRL_UPDATE_SHADOW);
-}
-
-static void s5pcsis_clk_put(struct csis_state *state)
-{
- int i;
-
- for (i = 0; i < NUM_CSIS_CLOCKS; i++) {
- if (IS_ERR_OR_NULL(state->clock[i]))
- continue;
- clk_unprepare(state->clock[i]);
- clk_put(state->clock[i]);
- state->clock[i] = NULL;
- }
-}
-
-static int s5pcsis_clk_get(struct csis_state *state)
-{
- struct device *dev = &state->pdev->dev;
- int i, ret;
-
- for (i = 0; i < NUM_CSIS_CLOCKS; i++) {
- state->clock[i] = clk_get(dev, csi_clock_name[i]);
- if (IS_ERR(state->clock[i]))
- goto err;
- ret = clk_prepare(state->clock[i]);
- if (ret < 0) {
- clk_put(state->clock[i]);
- state->clock[i] = NULL;
- goto err;
- }
- }
- return 0;
-err:
- s5pcsis_clk_put(state);
- dev_err(dev, "failed to get clock: %s\n", csi_clock_name[i]);
- return -ENXIO;
-}
-
-static int s5pcsis_s_power(struct v4l2_subdev *sd, int on)
-{
- struct csis_state *state = sd_to_csis_state(sd);
- struct device *dev = &state->pdev->dev;
-
- if (on)
- return pm_runtime_get_sync(dev);
-
- return pm_runtime_put_sync(dev);
-}
-
-static void s5pcsis_start_stream(struct csis_state *state)
-{
- s5pcsis_reset(state);
- s5pcsis_set_params(state);
- s5pcsis_system_enable(state, true);
- s5pcsis_enable_interrupts(state, true);
-}
-
-static void s5pcsis_stop_stream(struct csis_state *state)
-{
- s5pcsis_enable_interrupts(state, false);
- s5pcsis_system_enable(state, false);
-}
-
-/* v4l2_subdev operations */
-static int s5pcsis_s_stream(struct v4l2_subdev *sd, int enable)
-{
- struct csis_state *state = sd_to_csis_state(sd);
- int ret = 0;
-
- v4l2_dbg(1, debug, sd, "%s: %d, state: 0x%x\n",
- __func__, enable, state->flags);
-
- if (enable) {
- ret = pm_runtime_get_sync(&state->pdev->dev);
- if (ret && ret != 1)
- return ret;
- }
- mutex_lock(&state->lock);
- if (enable) {
- if (state->flags & ST_SUSPENDED) {
- ret = -EBUSY;
- goto unlock;
- }
- s5pcsis_start_stream(state);
- state->flags |= ST_STREAMING;
- } else {
- s5pcsis_stop_stream(state);
- state->flags &= ~ST_STREAMING;
- }
-unlock:
- mutex_unlock(&state->lock);
- if (!enable)
- pm_runtime_put(&state->pdev->dev);
-
- return ret == 1 ? 0 : ret;
-}
-
-static int s5pcsis_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_fh *fh,
- struct v4l2_subdev_mbus_code_enum *code)
-{
- if (code->index >= ARRAY_SIZE(s5pcsis_formats))
- return -EINVAL;
-
- code->code = s5pcsis_formats[code->index].code;
- return 0;
-}
-
-static struct csis_pix_format const *s5pcsis_try_format(
- struct v4l2_mbus_framefmt *mf)
-{
- struct csis_pix_format const *csis_fmt;
-
- csis_fmt = find_csis_format(mf);
- if (csis_fmt == NULL)
- csis_fmt = &s5pcsis_formats[0];
-
- mf->code = csis_fmt->code;
- v4l_bound_align_image(&mf->width, 1, CSIS_MAX_PIX_WIDTH,
- csis_fmt->pix_width_alignment,
- &mf->height, 1, CSIS_MAX_PIX_HEIGHT, 1,
- 0);
- return csis_fmt;
-}
-
-static struct v4l2_mbus_framefmt *__s5pcsis_get_format(
- struct csis_state *state, struct v4l2_subdev_fh *fh,
- u32 pad, enum v4l2_subdev_format_whence which)
-{
- if (which == V4L2_SUBDEV_FORMAT_TRY)
- return fh ? v4l2_subdev_get_try_format(fh, pad) : NULL;
-
- return &state->format;
-}
-
-static int s5pcsis_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
- struct v4l2_subdev_format *fmt)
-{
- struct csis_state *state = sd_to_csis_state(sd);
- struct csis_pix_format const *csis_fmt;
- struct v4l2_mbus_framefmt *mf;
-
- if (fmt->pad != CSIS_PAD_SOURCE && fmt->pad != CSIS_PAD_SINK)
- return -EINVAL;
-
- mf = __s5pcsis_get_format(state, fh, fmt->pad, fmt->which);
-
- if (fmt->pad == CSIS_PAD_SOURCE) {
- if (mf) {
- mutex_lock(&state->lock);
- fmt->format = *mf;
- mutex_unlock(&state->lock);
- }
- return 0;
- }
- csis_fmt = s5pcsis_try_format(&fmt->format);
- if (mf) {
- mutex_lock(&state->lock);
- *mf = fmt->format;
- if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
- state->csis_fmt = csis_fmt;
- mutex_unlock(&state->lock);
- }
- return 0;
-}
-
-static int s5pcsis_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh,
- struct v4l2_subdev_format *fmt)
-{
- struct csis_state *state = sd_to_csis_state(sd);
- struct v4l2_mbus_framefmt *mf;
-
- if (fmt->pad != CSIS_PAD_SOURCE && fmt->pad != CSIS_PAD_SINK)
- return -EINVAL;
-
- mf = __s5pcsis_get_format(state, fh, fmt->pad, fmt->which);
- if (!mf)
- return -EINVAL;
-
- mutex_lock(&state->lock);
- fmt->format = *mf;
- mutex_unlock(&state->lock);
- return 0;
-}
-
-static int s5pcsis_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
- struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(fh, 0);
-
- format->colorspace = V4L2_COLORSPACE_JPEG;
- format->code = s5pcsis_formats[0].code;
- format->width = S5PCSIS_DEF_PIX_WIDTH;
- format->height = S5PCSIS_DEF_PIX_HEIGHT;
- format->field = V4L2_FIELD_NONE;
-
- return 0;
-}
-
-static const struct v4l2_subdev_internal_ops s5pcsis_sd_internal_ops = {
- .open = s5pcsis_open,
-};
-
-static struct v4l2_subdev_core_ops s5pcsis_core_ops = {
- .s_power = s5pcsis_s_power,
-};
-
-static struct v4l2_subdev_pad_ops s5pcsis_pad_ops = {
- .enum_mbus_code = s5pcsis_enum_mbus_code,
- .get_fmt = s5pcsis_get_fmt,
- .set_fmt = s5pcsis_set_fmt,
-};
-
-static struct v4l2_subdev_video_ops s5pcsis_video_ops = {
- .s_stream = s5pcsis_s_stream,
-};
-
-static struct v4l2_subdev_ops s5pcsis_subdev_ops = {
- .core = &s5pcsis_core_ops,
- .pad = &s5pcsis_pad_ops,
- .video = &s5pcsis_video_ops,
-};
-
-static irqreturn_t s5pcsis_irq_handler(int irq, void *dev_id)
-{
- struct csis_state *state = dev_id;
- u32 val;
-
- /* Just clear the interrupt pending bits. */
- val = s5pcsis_read(state, S5PCSIS_INTSRC);
- s5pcsis_write(state, S5PCSIS_INTSRC, val);
-
- return IRQ_HANDLED;
-}
-
-static int __devinit s5pcsis_probe(struct platform_device *pdev)
-{
- struct s5p_platform_mipi_csis *pdata;
- struct resource *mem_res;
- struct csis_state *state;
- int ret = -ENOMEM;
- int i;
-
- state = devm_kzalloc(&pdev->dev, sizeof(*state), GFP_KERNEL);
- if (!state)
- return -ENOMEM;
-
- mutex_init(&state->lock);
- state->pdev = pdev;
-
- pdata = pdev->dev.platform_data;
- if (pdata == NULL || pdata->phy_enable == NULL) {
- dev_err(&pdev->dev, "Platform data not fully specified\n");
- return -EINVAL;
- }
-
- if ((pdev->id == 1 && pdata->lanes > CSIS1_MAX_LANES) ||
- pdata->lanes > CSIS0_MAX_LANES) {
- dev_err(&pdev->dev, "Unsupported number of data lanes: %d\n",
- pdata->lanes);
- return -EINVAL;
- }
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- state->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
- if (state->regs == NULL) {
- dev_err(&pdev->dev, "Failed to request and remap io memory\n");
- return -ENXIO;
- }
-
- state->irq = platform_get_irq(pdev, 0);
- if (state->irq < 0) {
- dev_err(&pdev->dev, "Failed to get irq\n");
- return state->irq;
- }
-
- for (i = 0; i < CSIS_NUM_SUPPLIES; i++)
- state->supplies[i].supply = csis_supply_name[i];
-
- ret = regulator_bulk_get(&pdev->dev, CSIS_NUM_SUPPLIES,
- state->supplies);
- if (ret)
- return ret;
-
- ret = s5pcsis_clk_get(state);
- if (ret)
- goto e_clkput;
-
- clk_enable(state->clock[CSIS_CLK_MUX]);
- if (pdata->clk_rate)
- clk_set_rate(state->clock[CSIS_CLK_MUX], pdata->clk_rate);
- else
- dev_WARN(&pdev->dev, "No clock frequency specified!\n");
-
- ret = devm_request_irq(&pdev->dev, state->irq, s5pcsis_irq_handler,
- 0, dev_name(&pdev->dev), state);
- if (ret) {
- dev_err(&pdev->dev, "Interrupt request failed\n");
- goto e_regput;
- }
-
- v4l2_subdev_init(&state->sd, &s5pcsis_subdev_ops);
- state->sd.owner = THIS_MODULE;
- strlcpy(state->sd.name, dev_name(&pdev->dev), sizeof(state->sd.name));
- state->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- state->csis_fmt = &s5pcsis_formats[0];
-
- state->format.code = s5pcsis_formats[0].code;
- state->format.width = S5PCSIS_DEF_PIX_WIDTH;
- state->format.height = S5PCSIS_DEF_PIX_HEIGHT;
-
- state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
- state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
- ret = media_entity_init(&state->sd.entity,
- CSIS_PADS_NUM, state->pads, 0);
- if (ret < 0)
- goto e_clkput;
-
- /* This allows to retrieve the platform device id by the host driver */
- v4l2_set_subdevdata(&state->sd, pdev);
-
- /* .. and a pointer to the subdev. */
- platform_set_drvdata(pdev, &state->sd);
-
- pm_runtime_enable(&pdev->dev);
- return 0;
-
-e_regput:
- regulator_bulk_free(CSIS_NUM_SUPPLIES, state->supplies);
-e_clkput:
- clk_disable(state->clock[CSIS_CLK_MUX]);
- s5pcsis_clk_put(state);
- return ret;
-}
-
-static int s5pcsis_pm_suspend(struct device *dev, bool runtime)
-{
- struct s5p_platform_mipi_csis *pdata = dev->platform_data;
- struct platform_device *pdev = to_platform_device(dev);
- struct v4l2_subdev *sd = platform_get_drvdata(pdev);
- struct csis_state *state = sd_to_csis_state(sd);
- int ret = 0;
-
- v4l2_dbg(1, debug, sd, "%s: flags: 0x%x\n",
- __func__, state->flags);
-
- mutex_lock(&state->lock);
- if (state->flags & ST_POWERED) {
- s5pcsis_stop_stream(state);
- ret = pdata->phy_enable(state->pdev, false);
- if (ret)
- goto unlock;
- ret = regulator_bulk_disable(CSIS_NUM_SUPPLIES,
- state->supplies);
- if (ret)
- goto unlock;
- clk_disable(state->clock[CSIS_CLK_GATE]);
- state->flags &= ~ST_POWERED;
- if (!runtime)
- state->flags |= ST_SUSPENDED;
- }
- unlock:
- mutex_unlock(&state->lock);
- return ret ? -EAGAIN : 0;
-}
-
-static int s5pcsis_pm_resume(struct device *dev, bool runtime)
-{
- struct s5p_platform_mipi_csis *pdata = dev->platform_data;
- struct platform_device *pdev = to_platform_device(dev);
- struct v4l2_subdev *sd = platform_get_drvdata(pdev);
- struct csis_state *state = sd_to_csis_state(sd);
- int ret = 0;
-
- v4l2_dbg(1, debug, sd, "%s: flags: 0x%x\n",
- __func__, state->flags);
-
- mutex_lock(&state->lock);
- if (!runtime && !(state->flags & ST_SUSPENDED))
- goto unlock;
-
- if (!(state->flags & ST_POWERED)) {
- ret = regulator_bulk_enable(CSIS_NUM_SUPPLIES,
- state->supplies);
- if (ret)
- goto unlock;
- ret = pdata->phy_enable(state->pdev, true);
- if (!ret) {
- state->flags |= ST_POWERED;
- } else {
- regulator_bulk_disable(CSIS_NUM_SUPPLIES,
- state->supplies);
- goto unlock;
- }
- clk_enable(state->clock[CSIS_CLK_GATE]);
- }
- if (state->flags & ST_STREAMING)
- s5pcsis_start_stream(state);
-
- state->flags &= ~ST_SUSPENDED;
- unlock:
- mutex_unlock(&state->lock);
- return ret ? -EAGAIN : 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int s5pcsis_suspend(struct device *dev)
-{
- return s5pcsis_pm_suspend(dev, false);
-}
-
-static int s5pcsis_resume(struct device *dev)
-{
- return s5pcsis_pm_resume(dev, false);
-}
-#endif
-
-#ifdef CONFIG_PM_RUNTIME
-static int s5pcsis_runtime_suspend(struct device *dev)
-{
- return s5pcsis_pm_suspend(dev, true);
-}
-
-static int s5pcsis_runtime_resume(struct device *dev)
-{
- return s5pcsis_pm_resume(dev, true);
-}
-#endif
-
-static int __devexit s5pcsis_remove(struct platform_device *pdev)
-{
- struct v4l2_subdev *sd = platform_get_drvdata(pdev);
- struct csis_state *state = sd_to_csis_state(sd);
-
- pm_runtime_disable(&pdev->dev);
- s5pcsis_pm_suspend(&pdev->dev, false);
- clk_disable(state->clock[CSIS_CLK_MUX]);
- pm_runtime_set_suspended(&pdev->dev);
- s5pcsis_clk_put(state);
- regulator_bulk_free(CSIS_NUM_SUPPLIES, state->supplies);
-
- media_entity_cleanup(&state->sd.entity);
-
- return 0;
-}
-
-static const struct dev_pm_ops s5pcsis_pm_ops = {
- SET_RUNTIME_PM_OPS(s5pcsis_runtime_suspend, s5pcsis_runtime_resume,
- NULL)
- SET_SYSTEM_SLEEP_PM_OPS(s5pcsis_suspend, s5pcsis_resume)
-};
-
-static struct platform_driver s5pcsis_driver = {
- .probe = s5pcsis_probe,
- .remove = __devexit_p(s5pcsis_remove),
- .driver = {
- .name = CSIS_DRIVER_NAME,
- .owner = THIS_MODULE,
- .pm = &s5pcsis_pm_ops,
- },
-};
-
-module_platform_driver(s5pcsis_driver);
-
-MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
-MODULE_DESCRIPTION("Samsung S5P/EXYNOS SoC MIPI-CSI2 receiver driver");
-MODULE_LICENSE("GPL");
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