summaryrefslogtreecommitdiff
path: root/drivers/media/video/s5p-tv/hdmi_drv.c
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 17:31:16 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:43:09 -0300
commit2c3fb08b3f74b8792004095a1f6881a3296ff643 (patch)
tree19be9d09c4aa66d4363ee9d38a43721f5d6b144f /drivers/media/video/s5p-tv/hdmi_drv.c
parent2a2d1cf46500ab7599d0b45ee837f3936763ccac (diff)
[media] rename drivers/media/video as .../platform
The remaining drivers are mostly platform drivers. Name the dir to reflect it. It makes sense to latter break it into a few other dirs. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/s5p-tv/hdmi_drv.c')
-rw-r--r--drivers/media/video/s5p-tv/hdmi_drv.c1007
1 files changed, 0 insertions, 1007 deletions
diff --git a/drivers/media/video/s5p-tv/hdmi_drv.c b/drivers/media/video/s5p-tv/hdmi_drv.c
deleted file mode 100644
index 20cb6eef2979..000000000000
--- a/drivers/media/video/s5p-tv/hdmi_drv.c
+++ /dev/null
@@ -1,1007 +0,0 @@
-/*
- * Samsung HDMI interface driver
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *
- * 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 Foundiation. either version 2 of the License,
- * or (at your option) any later version
- */
-
-#ifdef CONFIG_VIDEO_SAMSUNG_S5P_HDMI_DEBUG
-#define DEBUG
-#endif
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/i2c.h>
-#include <linux/platform_device.h>
-#include <media/v4l2-subdev.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/bug.h>
-#include <linux/pm_runtime.h>
-#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>
-
-#include "regs-hdmi.h"
-
-MODULE_AUTHOR("Tomasz Stanislawski, <t.stanislaws@samsung.com>");
-MODULE_DESCRIPTION("Samsung HDMI");
-MODULE_LICENSE("GPL");
-
-/* default preset configured on probe */
-#define HDMI_DEFAULT_PRESET V4L2_DV_480P59_94
-
-struct hdmi_pulse {
- u32 beg;
- u32 end;
-};
-
-struct hdmi_timings {
- struct hdmi_pulse hact;
- u32 hsyn_pol; /* 0 - high, 1 - low */
- struct hdmi_pulse hsyn;
- u32 interlaced;
- struct hdmi_pulse vact[2];
- u32 vsyn_pol; /* 0 - high, 1 - low */
- u32 vsyn_off;
- struct hdmi_pulse vsyn[2];
-};
-
-struct hdmi_resources {
- struct clk *hdmi;
- struct clk *sclk_hdmi;
- struct clk *sclk_pixel;
- struct clk *sclk_hdmiphy;
- struct clk *hdmiphy;
- struct regulator_bulk_data *regul_bulk;
- int regul_count;
-};
-
-struct hdmi_device {
- /** base address of HDMI registers */
- void __iomem *regs;
- /** HDMI interrupt */
- unsigned int irq;
- /** pointer to device parent */
- struct device *dev;
- /** subdev generated by HDMI device */
- struct v4l2_subdev sd;
- /** V4L2 device structure */
- 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_timings *cur_conf;
- /** flag indicating that timings are dirty */
- int cur_conf_dirty;
- /** current preset */
- u32 cur_preset;
- /** other resources */
- struct hdmi_resources res;
-};
-
-static struct platform_device_id hdmi_driver_types[] = {
- {
- .name = "s5pv210-hdmi",
- }, {
- .name = "exynos4-hdmi",
- }, {
- /* end node */
- }
-};
-
-static const struct v4l2_subdev_ops hdmi_sd_ops;
-
-static struct hdmi_device *sd_to_hdmi_dev(struct v4l2_subdev *sd)
-{
- return container_of(sd, struct hdmi_device, sd);
-}
-
-static inline
-void hdmi_write(struct hdmi_device *hdev, u32 reg_id, u32 value)
-{
- writel(value, hdev->regs + reg_id);
-}
-
-static inline
-void hdmi_write_mask(struct hdmi_device *hdev, u32 reg_id, u32 value, u32 mask)
-{
- u32 old = readl(hdev->regs + reg_id);
- value = (value & mask) | (old & ~mask);
- writel(value, hdev->regs + reg_id);
-}
-
-static inline
-void hdmi_writeb(struct hdmi_device *hdev, u32 reg_id, u8 value)
-{
- writeb(value, hdev->regs + reg_id);
-}
-
-static inline
-void hdmi_writebn(struct hdmi_device *hdev, u32 reg_id, int n, u32 value)
-{
- switch (n) {
- default:
- writeb(value >> 24, hdev->regs + reg_id + 12);
- case 3:
- writeb(value >> 16, hdev->regs + reg_id + 8);
- case 2:
- writeb(value >> 8, hdev->regs + reg_id + 4);
- case 1:
- writeb(value >> 0, hdev->regs + reg_id + 0);
- }
-}
-
-static inline u32 hdmi_read(struct hdmi_device *hdev, u32 reg_id)
-{
- return readl(hdev->regs + reg_id);
-}
-
-static irqreturn_t hdmi_irq_handler(int irq, void *dev_data)
-{
- struct hdmi_device *hdev = dev_data;
- u32 intc_flag;
-
- (void)irq;
- intc_flag = hdmi_read(hdev, HDMI_INTC_FLAG);
- /* clearing flags for HPD plug/unplug */
- if (intc_flag & HDMI_INTC_FLAG_HPD_UNPLUG) {
- printk(KERN_INFO "unplugged\n");
- hdmi_write_mask(hdev, HDMI_INTC_FLAG, ~0,
- HDMI_INTC_FLAG_HPD_UNPLUG);
- }
- if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) {
- printk(KERN_INFO "plugged\n");
- hdmi_write_mask(hdev, HDMI_INTC_FLAG, ~0,
- HDMI_INTC_FLAG_HPD_PLUG);
- }
-
- return IRQ_HANDLED;
-}
-
-static void hdmi_reg_init(struct hdmi_device *hdev)
-{
- /* enable HPD interrupts */
- hdmi_write_mask(hdev, HDMI_INTC_CON, ~0, HDMI_INTC_EN_GLOBAL |
- HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
- /* choose DVI mode */
- hdmi_write_mask(hdev, HDMI_MODE_SEL,
- HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
- hdmi_write_mask(hdev, HDMI_CON_2, ~0,
- HDMI_DVI_PERAMBLE_EN | HDMI_DVI_BAND_EN);
- /* disable bluescreen */
- hdmi_write_mask(hdev, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
- /* choose bluescreen (fecal) color */
- hdmi_writeb(hdev, HDMI_BLUE_SCREEN_0, 0x12);
- hdmi_writeb(hdev, HDMI_BLUE_SCREEN_1, 0x34);
- hdmi_writeb(hdev, HDMI_BLUE_SCREEN_2, 0x56);
-}
-
-static void hdmi_timing_apply(struct hdmi_device *hdev,
- const struct hdmi_timings *t)
-{
- /* setting core registers */
- hdmi_writebn(hdev, HDMI_H_BLANK_0, 2, t->hact.beg);
- hdmi_writebn(hdev, HDMI_H_SYNC_GEN_0, 3,
- (t->hsyn_pol << 20) | (t->hsyn.end << 10) | t->hsyn.beg);
- hdmi_writeb(hdev, HDMI_VSYNC_POL, t->vsyn_pol);
- hdmi_writebn(hdev, HDMI_V_BLANK_0, 3,
- (t->vact[0].beg << 11) | t->vact[0].end);
- hdmi_writebn(hdev, HDMI_V_SYNC_GEN_1_0, 3,
- (t->vsyn[0].beg << 12) | t->vsyn[0].end);
- if (t->interlaced) {
- u32 vsyn_trans = t->hsyn.beg + t->vsyn_off;
-
- hdmi_writeb(hdev, HDMI_INT_PRO_MODE, 1);
- hdmi_writebn(hdev, HDMI_H_V_LINE_0, 3,
- (t->hact.end << 12) | t->vact[1].end);
- hdmi_writebn(hdev, HDMI_V_BLANK_F_0, 3,
- (t->vact[1].end << 11) | t->vact[1].beg);
- hdmi_writebn(hdev, HDMI_V_SYNC_GEN_2_0, 3,
- (t->vsyn[1].beg << 12) | t->vsyn[1].end);
- hdmi_writebn(hdev, HDMI_V_SYNC_GEN_3_0, 3,
- (vsyn_trans << 12) | vsyn_trans);
- } else {
- hdmi_writeb(hdev, HDMI_INT_PRO_MODE, 0);
- hdmi_writebn(hdev, HDMI_H_V_LINE_0, 3,
- (t->hact.end << 12) | t->vact[0].end);
- }
-
- /* Timing generator registers */
- hdmi_writebn(hdev, HDMI_TG_H_FSZ_L, 2, t->hact.end);
- hdmi_writebn(hdev, HDMI_TG_HACT_ST_L, 2, t->hact.beg);
- hdmi_writebn(hdev, HDMI_TG_HACT_SZ_L, 2, t->hact.end - t->hact.beg);
- hdmi_writebn(hdev, HDMI_TG_VSYNC_L, 2, t->vsyn[0].beg);
- hdmi_writebn(hdev, HDMI_TG_VACT_ST_L, 2, t->vact[0].beg);
- hdmi_writebn(hdev, HDMI_TG_VACT_SZ_L, 2,
- t->vact[0].end - t->vact[0].beg);
- hdmi_writebn(hdev, HDMI_TG_VSYNC_TOP_HDMI_L, 2, t->vsyn[0].beg);
- hdmi_writebn(hdev, HDMI_TG_FIELD_TOP_HDMI_L, 2, t->vsyn[0].beg);
- if (t->interlaced) {
- hdmi_write_mask(hdev, HDMI_TG_CMD, ~0, HDMI_TG_FIELD_EN);
- hdmi_writebn(hdev, HDMI_TG_V_FSZ_L, 2, t->vact[1].end);
- hdmi_writebn(hdev, HDMI_TG_VSYNC2_L, 2, t->vsyn[1].beg);
- hdmi_writebn(hdev, HDMI_TG_FIELD_CHG_L, 2, t->vact[0].end);
- hdmi_writebn(hdev, HDMI_TG_VACT_ST2_L, 2, t->vact[1].beg);
- hdmi_writebn(hdev, HDMI_TG_VSYNC_BOT_HDMI_L, 2, t->vsyn[1].beg);
- hdmi_writebn(hdev, HDMI_TG_FIELD_BOT_HDMI_L, 2, t->vsyn[1].beg);
- } else {
- hdmi_write_mask(hdev, HDMI_TG_CMD, 0, HDMI_TG_FIELD_EN);
- hdmi_writebn(hdev, HDMI_TG_V_FSZ_L, 2, t->vact[0].end);
- }
-}
-
-static int hdmi_conf_apply(struct hdmi_device *hdmi_dev)
-{
- struct device *dev = hdmi_dev->dev;
- const struct hdmi_timings *conf = hdmi_dev->cur_conf;
- struct v4l2_dv_preset preset;
- int ret;
-
- dev_dbg(dev, "%s\n", __func__);
-
- /* skip if conf is already synchronized with HW */
- if (!hdmi_dev->cur_conf_dirty)
- return 0;
-
- /* reset hdmiphy */
- hdmi_write_mask(hdmi_dev, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);
- mdelay(10);
- hdmi_write_mask(hdmi_dev, HDMI_PHY_RSTOUT, 0, HDMI_PHY_SW_RSTOUT);
- mdelay(10);
-
- /* configure presets */
- preset.preset = hdmi_dev->cur_preset;
- ret = v4l2_subdev_call(hdmi_dev->phy_sd, video, s_dv_preset, &preset);
- if (ret) {
- dev_err(dev, "failed to set preset (%u)\n", preset.preset);
- return ret;
- }
-
- /* resetting HDMI core */
- hdmi_write_mask(hdmi_dev, HDMI_CORE_RSTOUT, 0, HDMI_CORE_SW_RSTOUT);
- mdelay(10);
- hdmi_write_mask(hdmi_dev, HDMI_CORE_RSTOUT, ~0, HDMI_CORE_SW_RSTOUT);
- mdelay(10);
-
- hdmi_reg_init(hdmi_dev);
-
- /* setting core registers */
- hdmi_timing_apply(hdmi_dev, conf);
-
- hdmi_dev->cur_conf_dirty = 0;
-
- return 0;
-}
-
-static void hdmi_dumpregs(struct hdmi_device *hdev, char *prefix)
-{
-#define DUMPREG(reg_id) \
- dev_dbg(hdev->dev, "%s:" #reg_id " = %08x\n", prefix, \
- readl(hdev->regs + reg_id))
-
- dev_dbg(hdev->dev, "%s: ---- CONTROL REGISTERS ----\n", prefix);
- DUMPREG(HDMI_INTC_FLAG);
- DUMPREG(HDMI_INTC_CON);
- DUMPREG(HDMI_HPD_STATUS);
- DUMPREG(HDMI_PHY_RSTOUT);
- DUMPREG(HDMI_PHY_VPLL);
- DUMPREG(HDMI_PHY_CMU);
- DUMPREG(HDMI_CORE_RSTOUT);
-
- dev_dbg(hdev->dev, "%s: ---- CORE REGISTERS ----\n", prefix);
- DUMPREG(HDMI_CON_0);
- DUMPREG(HDMI_CON_1);
- DUMPREG(HDMI_CON_2);
- DUMPREG(HDMI_SYS_STATUS);
- DUMPREG(HDMI_PHY_STATUS);
- DUMPREG(HDMI_STATUS_EN);
- DUMPREG(HDMI_HPD);
- DUMPREG(HDMI_MODE_SEL);
- DUMPREG(HDMI_HPD_GEN);
- DUMPREG(HDMI_DC_CONTROL);
- DUMPREG(HDMI_VIDEO_PATTERN_GEN);
-
- dev_dbg(hdev->dev, "%s: ---- CORE SYNC REGISTERS ----\n", prefix);
- DUMPREG(HDMI_H_BLANK_0);
- DUMPREG(HDMI_H_BLANK_1);
- DUMPREG(HDMI_V_BLANK_0);
- DUMPREG(HDMI_V_BLANK_1);
- DUMPREG(HDMI_V_BLANK_2);
- DUMPREG(HDMI_H_V_LINE_0);
- DUMPREG(HDMI_H_V_LINE_1);
- DUMPREG(HDMI_H_V_LINE_2);
- DUMPREG(HDMI_VSYNC_POL);
- DUMPREG(HDMI_INT_PRO_MODE);
- DUMPREG(HDMI_V_BLANK_F_0);
- DUMPREG(HDMI_V_BLANK_F_1);
- DUMPREG(HDMI_V_BLANK_F_2);
- DUMPREG(HDMI_H_SYNC_GEN_0);
- DUMPREG(HDMI_H_SYNC_GEN_1);
- DUMPREG(HDMI_H_SYNC_GEN_2);
- DUMPREG(HDMI_V_SYNC_GEN_1_0);
- DUMPREG(HDMI_V_SYNC_GEN_1_1);
- DUMPREG(HDMI_V_SYNC_GEN_1_2);
- DUMPREG(HDMI_V_SYNC_GEN_2_0);
- DUMPREG(HDMI_V_SYNC_GEN_2_1);
- DUMPREG(HDMI_V_SYNC_GEN_2_2);
- DUMPREG(HDMI_V_SYNC_GEN_3_0);
- DUMPREG(HDMI_V_SYNC_GEN_3_1);
- DUMPREG(HDMI_V_SYNC_GEN_3_2);
-
- dev_dbg(hdev->dev, "%s: ---- TG REGISTERS ----\n", prefix);
- DUMPREG(HDMI_TG_CMD);
- DUMPREG(HDMI_TG_H_FSZ_L);
- DUMPREG(HDMI_TG_H_FSZ_H);
- DUMPREG(HDMI_TG_HACT_ST_L);
- DUMPREG(HDMI_TG_HACT_ST_H);
- DUMPREG(HDMI_TG_HACT_SZ_L);
- DUMPREG(HDMI_TG_HACT_SZ_H);
- DUMPREG(HDMI_TG_V_FSZ_L);
- DUMPREG(HDMI_TG_V_FSZ_H);
- DUMPREG(HDMI_TG_VSYNC_L);
- DUMPREG(HDMI_TG_VSYNC_H);
- DUMPREG(HDMI_TG_VSYNC2_L);
- DUMPREG(HDMI_TG_VSYNC2_H);
- DUMPREG(HDMI_TG_VACT_ST_L);
- DUMPREG(HDMI_TG_VACT_ST_H);
- DUMPREG(HDMI_TG_VACT_SZ_L);
- DUMPREG(HDMI_TG_VACT_SZ_H);
- DUMPREG(HDMI_TG_FIELD_CHG_L);
- DUMPREG(HDMI_TG_FIELD_CHG_H);
- DUMPREG(HDMI_TG_VACT_ST2_L);
- DUMPREG(HDMI_TG_VACT_ST2_H);
- DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_L);
- DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_H);
- DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_L);
- DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_H);
- DUMPREG(HDMI_TG_FIELD_TOP_HDMI_L);
- DUMPREG(HDMI_TG_FIELD_TOP_HDMI_H);
- DUMPREG(HDMI_TG_FIELD_BOT_HDMI_L);
- DUMPREG(HDMI_TG_FIELD_BOT_HDMI_H);
-#undef DUMPREG
-}
-
-static const struct hdmi_timings hdmi_timings_480p = {
- .hact = { .beg = 138, .end = 858 },
- .hsyn_pol = 1,
- .hsyn = { .beg = 16, .end = 16 + 62 },
- .interlaced = 0,
- .vact[0] = { .beg = 42 + 3, .end = 522 + 3 },
- .vsyn_pol = 1,
- .vsyn[0] = { .beg = 6 + 3, .end = 12 + 3},
-};
-
-static const struct hdmi_timings hdmi_timings_576p50 = {
- .hact = { .beg = 144, .end = 864 },
- .hsyn_pol = 1,
- .hsyn = { .beg = 12, .end = 12 + 64 },
- .interlaced = 0,
- .vact[0] = { .beg = 44 + 5, .end = 620 + 5 },
- .vsyn_pol = 1,
- .vsyn[0] = { .beg = 0 + 5, .end = 5 + 5},
-};
-
-static const struct hdmi_timings hdmi_timings_720p60 = {
- .hact = { .beg = 370, .end = 1650 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 110, .end = 110 + 40 },
- .interlaced = 0,
- .vact[0] = { .beg = 25 + 5, .end = 745 + 5 },
- .vsyn_pol = 0,
- .vsyn[0] = { .beg = 0 + 5, .end = 5 + 5},
-};
-
-static const struct hdmi_timings hdmi_timings_720p50 = {
- .hact = { .beg = 700, .end = 1980 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 440, .end = 440 + 40 },
- .interlaced = 0,
- .vact[0] = { .beg = 25 + 5, .end = 745 + 5 },
- .vsyn_pol = 0,
- .vsyn[0] = { .beg = 0 + 5, .end = 5 + 5},
-};
-
-static const struct hdmi_timings hdmi_timings_1080p24 = {
- .hact = { .beg = 830, .end = 2750 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 638, .end = 638 + 44 },
- .interlaced = 0,
- .vact[0] = { .beg = 41 + 4, .end = 1121 + 4 },
- .vsyn_pol = 0,
- .vsyn[0] = { .beg = 0 + 4, .end = 5 + 4},
-};
-
-static const struct hdmi_timings hdmi_timings_1080p60 = {
- .hact = { .beg = 280, .end = 2200 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 88, .end = 88 + 44 },
- .interlaced = 0,
- .vact[0] = { .beg = 41 + 4, .end = 1121 + 4 },
- .vsyn_pol = 0,
- .vsyn[0] = { .beg = 0 + 4, .end = 5 + 4},
-};
-
-static const struct hdmi_timings hdmi_timings_1080i60 = {
- .hact = { .beg = 280, .end = 2200 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 88, .end = 88 + 44 },
- .interlaced = 1,
- .vact[0] = { .beg = 20 + 2, .end = 560 + 2 },
- .vact[1] = { .beg = 583 + 2, .end = 1123 + 2 },
- .vsyn_pol = 0,
- .vsyn_off = 1100,
- .vsyn[0] = { .beg = 0 + 2, .end = 5 + 2},
- .vsyn[1] = { .beg = 562 + 2, .end = 567 + 2},
-};
-
-static const struct hdmi_timings hdmi_timings_1080i50 = {
- .hact = { .beg = 720, .end = 2640 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 528, .end = 528 + 44 },
- .interlaced = 1,
- .vact[0] = { .beg = 20 + 2, .end = 560 + 2 },
- .vact[1] = { .beg = 583 + 2, .end = 1123 + 2 },
- .vsyn_pol = 0,
- .vsyn_off = 1320,
- .vsyn[0] = { .beg = 0 + 2, .end = 5 + 2},
- .vsyn[1] = { .beg = 562 + 2, .end = 567 + 2},
-};
-
-static const struct hdmi_timings hdmi_timings_1080p50 = {
- .hact = { .beg = 720, .end = 2640 },
- .hsyn_pol = 0,
- .hsyn = { .beg = 528, .end = 528 + 44 },
- .interlaced = 0,
- .vact[0] = { .beg = 41 + 4, .end = 1121 + 4 },
- .vsyn_pol = 0,
- .vsyn[0] = { .beg = 0 + 4, .end = 5 + 4},
-};
-
-static const struct {
- u32 preset;
- const struct hdmi_timings *timings;
-} hdmi_timings[] = {
- { V4L2_DV_480P59_94, &hdmi_timings_480p },
- { V4L2_DV_576P50, &hdmi_timings_576p50 },
- { V4L2_DV_720P50, &hdmi_timings_720p50 },
- { V4L2_DV_720P59_94, &hdmi_timings_720p60 },
- { V4L2_DV_720P60, &hdmi_timings_720p60 },
- { V4L2_DV_1080P24, &hdmi_timings_1080p24 },
- { V4L2_DV_1080P30, &hdmi_timings_1080p60 },
- { V4L2_DV_1080P50, &hdmi_timings_1080p50 },
- { V4L2_DV_1080I50, &hdmi_timings_1080i50 },
- { V4L2_DV_1080I60, &hdmi_timings_1080i60 },
- { V4L2_DV_1080P60, &hdmi_timings_1080p60 },
-};
-
-static const struct hdmi_timings *hdmi_preset2timings(u32 preset)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(hdmi_timings); ++i)
- if (hdmi_timings[i].preset == preset)
- return hdmi_timings[i].timings;
- return NULL;
-}
-
-static int hdmi_streamon(struct hdmi_device *hdev)
-{
- struct device *dev = hdev->dev;
- struct hdmi_resources *res = &hdev->res;
- int ret, tries;
-
- dev_dbg(dev, "%s\n", __func__);
-
- ret = hdmi_conf_apply(hdev);
- if (ret)
- return ret;
-
- ret = v4l2_subdev_call(hdev->phy_sd, video, s_stream, 1);
- if (ret)
- return ret;
-
- /* waiting for HDMIPHY's PLL to get to steady state */
- for (tries = 100; tries; --tries) {
- u32 val = hdmi_read(hdev, HDMI_PHY_STATUS);
- if (val & HDMI_PHY_STATUS_READY)
- break;
- mdelay(1);
- }
- /* steady state not achieved */
- 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, "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;
- }
-
- /* hdmiphy clock is used for HDMI in streaming mode */
- clk_disable(res->sclk_hdmi);
- clk_set_parent(res->sclk_hdmi, res->sclk_hdmiphy);
- clk_enable(res->sclk_hdmi);
-
- /* enable HDMI and timing generator */
- hdmi_write_mask(hdev, HDMI_CON_0, ~0, HDMI_EN);
- hdmi_write_mask(hdev, HDMI_TG_CMD, ~0, HDMI_TG_EN);
- hdmi_dumpregs(hdev, "streamon");
- return 0;
-}
-
-static int hdmi_streamoff(struct hdmi_device *hdev)
-{
- struct device *dev = hdev->dev;
- struct hdmi_resources *res = &hdev->res;
-
- dev_dbg(dev, "%s\n", __func__);
-
- hdmi_write_mask(hdev, HDMI_CON_0, 0, HDMI_EN);
- hdmi_write_mask(hdev, HDMI_TG_CMD, 0, HDMI_TG_EN);
-
- /* pixel(vpll) clock is used for HDMI in config mode */
- clk_disable(res->sclk_hdmi);
- 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");
- return 0;
-}
-
-static int hdmi_s_stream(struct v4l2_subdev *sd, int enable)
-{
- struct hdmi_device *hdev = sd_to_hdmi_dev(sd);
- struct device *dev = hdev->dev;
-
- dev_dbg(dev, "%s(%d)\n", __func__, enable);
- if (enable)
- return hdmi_streamon(hdev);
- return hdmi_streamoff(hdev);
-}
-
-static void hdmi_resource_poweron(struct hdmi_resources *res)
-{
- /* turn HDMI power on */
- regulator_bulk_enable(res->regul_count, res->regul_bulk);
- /* power-on hdmi physical interface */
- clk_enable(res->hdmiphy);
- /* use VPP as parent clock; HDMIPHY is not working yet */
- clk_set_parent(res->sclk_hdmi, res->sclk_pixel);
- /* turn clocks on */
- clk_enable(res->sclk_hdmi);
-}
-
-static void hdmi_resource_poweroff(struct hdmi_resources *res)
-{
- /* turn clocks off */
- clk_disable(res->sclk_hdmi);
- /* power-off hdmiphy */
- clk_disable(res->hdmiphy);
- /* turn HDMI power off */
- regulator_bulk_disable(res->regul_count, res->regul_bulk);
-}
-
-static int hdmi_s_power(struct v4l2_subdev *sd, int on)
-{
- struct hdmi_device *hdev = sd_to_hdmi_dev(sd);
- int ret;
-
- if (on)
- ret = pm_runtime_get_sync(hdev->dev);
- else
- ret = pm_runtime_put_sync(hdev->dev);
- /* only values < 0 indicate errors */
- return IS_ERR_VALUE(ret) ? ret : 0;
-}
-
-static int hdmi_s_dv_preset(struct v4l2_subdev *sd,
- struct v4l2_dv_preset *preset)
-{
- struct hdmi_device *hdev = sd_to_hdmi_dev(sd);
- struct device *dev = hdev->dev;
- const struct hdmi_timings *conf;
-
- conf = hdmi_preset2timings(preset->preset);
- if (conf == NULL) {
- dev_err(dev, "preset (%u) not supported\n", preset->preset);
- return -EINVAL;
- }
- hdev->cur_conf = conf;
- hdev->cur_conf_dirty = 1;
- hdev->cur_preset = preset->preset;
- return 0;
-}
-
-static int hdmi_g_dv_preset(struct v4l2_subdev *sd,
- struct v4l2_dv_preset *preset)
-{
- memset(preset, 0, sizeof(*preset));
- preset->preset = sd_to_hdmi_dev(sd)->cur_preset;
- return 0;
-}
-
-static int hdmi_g_mbus_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *fmt)
-{
- struct hdmi_device *hdev = sd_to_hdmi_dev(sd);
- const struct hdmi_timings *t = hdev->cur_conf;
-
- dev_dbg(hdev->dev, "%s\n", __func__);
- if (!hdev->cur_conf)
- return -EINVAL;
- memset(fmt, 0, sizeof *fmt);
- fmt->width = t->hact.end - t->hact.beg;
- fmt->height = t->vact[0].end - t->vact[0].beg;
- fmt->code = V4L2_MBUS_FMT_FIXED; /* means RGB888 */
- fmt->colorspace = V4L2_COLORSPACE_SRGB;
- if (t->interlaced) {
- fmt->field = V4L2_FIELD_INTERLACED;
- fmt->height *= 2;
- } else {
- fmt->field = V4L2_FIELD_NONE;
- }
- return 0;
-}
-
-static int hdmi_enum_dv_presets(struct v4l2_subdev *sd,
- struct v4l2_dv_enum_preset *preset)
-{
- if (preset->index >= ARRAY_SIZE(hdmi_timings))
- return -EINVAL;
- return v4l_fill_dv_preset_info(hdmi_timings[preset->index].preset,
- preset);
-}
-
-static const struct v4l2_subdev_core_ops hdmi_sd_core_ops = {
- .s_power = hdmi_s_power,
-};
-
-static const struct v4l2_subdev_video_ops hdmi_sd_video_ops = {
- .s_dv_preset = hdmi_s_dv_preset,
- .g_dv_preset = hdmi_g_dv_preset,
- .enum_dv_presets = hdmi_enum_dv_presets,
- .g_mbus_fmt = hdmi_g_mbus_fmt,
- .s_stream = hdmi_s_stream,
-};
-
-static const struct v4l2_subdev_ops hdmi_sd_ops = {
- .core = &hdmi_sd_core_ops,
- .video = &hdmi_sd_video_ops,
-};
-
-static int hdmi_runtime_suspend(struct device *dev)
-{
- struct v4l2_subdev *sd = dev_get_drvdata(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);
- /* flag that device context is lost */
- hdev->cur_conf_dirty = 1;
- return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
- struct v4l2_subdev *sd = dev_get_drvdata(dev);
- struct hdmi_device *hdev = sd_to_hdmi_dev(sd);
- int ret = 0;
-
- dev_dbg(dev, "%s\n", __func__);
-
- hdmi_resource_poweron(&hdev->res);
-
- /* 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;
-
-fail:
- hdmi_resource_poweroff(&hdev->res);
- dev_err(dev, "poweron failed\n");
-
- return ret;
-}
-
-static const struct dev_pm_ops hdmi_pm_ops = {
- .runtime_suspend = hdmi_runtime_suspend,
- .runtime_resume = hdmi_runtime_resume,
-};
-
-static void hdmi_resources_cleanup(struct hdmi_device *hdev)
-{
- struct hdmi_resources *res = &hdev->res;
-
- dev_dbg(hdev->dev, "HDMI resource cleanup\n");
- /* put clocks, power */
- if (res->regul_count)
- regulator_bulk_free(res->regul_count, res->regul_bulk);
- /* kfree is NULL-safe */
- kfree(res->regul_bulk);
- if (!IS_ERR_OR_NULL(res->hdmiphy))
- clk_put(res->hdmiphy);
- if (!IS_ERR_OR_NULL(res->sclk_hdmiphy))
- clk_put(res->sclk_hdmiphy);
- if (!IS_ERR_OR_NULL(res->sclk_pixel))
- clk_put(res->sclk_pixel);
- if (!IS_ERR_OR_NULL(res->sclk_hdmi))
- clk_put(res->sclk_hdmi);
- if (!IS_ERR_OR_NULL(res->hdmi))
- clk_put(res->hdmi);
- memset(res, 0, sizeof *res);
-}
-
-static int hdmi_resources_init(struct hdmi_device *hdev)
-{
- struct device *dev = hdev->dev;
- struct hdmi_resources *res = &hdev->res;
- static char *supply[] = {
- "hdmi-en",
- "vdd",
- "vdd_osc",
- "vdd_pll",
- };
- int i, ret;
-
- dev_dbg(dev, "HDMI resource init\n");
-
- memset(res, 0, sizeof *res);
- /* get clocks, power */
-
- res->hdmi = clk_get(dev, "hdmi");
- if (IS_ERR_OR_NULL(res->hdmi)) {
- dev_err(dev, "failed to get clock 'hdmi'\n");
- goto fail;
- }
- res->sclk_hdmi = clk_get(dev, "sclk_hdmi");
- if (IS_ERR_OR_NULL(res->sclk_hdmi)) {
- dev_err(dev, "failed to get clock 'sclk_hdmi'\n");
- goto fail;
- }
- res->sclk_pixel = clk_get(dev, "sclk_pixel");
- if (IS_ERR_OR_NULL(res->sclk_pixel)) {
- dev_err(dev, "failed to get clock 'sclk_pixel'\n");
- goto fail;
- }
- res->sclk_hdmiphy = clk_get(dev, "sclk_hdmiphy");
- if (IS_ERR_OR_NULL(res->sclk_hdmiphy)) {
- dev_err(dev, "failed to get clock 'sclk_hdmiphy'\n");
- goto fail;
- }
- res->hdmiphy = clk_get(dev, "hdmiphy");
- if (IS_ERR_OR_NULL(res->hdmiphy)) {
- dev_err(dev, "failed to get clock 'hdmiphy'\n");
- goto fail;
- }
- res->regul_bulk = kcalloc(ARRAY_SIZE(supply),
- sizeof(res->regul_bulk[0]), GFP_KERNEL);
- if (!res->regul_bulk) {
- dev_err(dev, "failed to get memory for regulators\n");
- goto fail;
- }
- for (i = 0; i < ARRAY_SIZE(supply); ++i) {
- res->regul_bulk[i].supply = supply[i];
- res->regul_bulk[i].consumer = NULL;
- }
-
- ret = regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk);
- if (ret) {
- dev_err(dev, "failed to get regulators\n");
- goto fail;
- }
- res->regul_count = ARRAY_SIZE(supply);
-
- return 0;
-fail:
- dev_err(dev, "HDMI resource init - failed\n");
- hdmi_resources_cleanup(hdev);
- return -ENODEV;
-}
-
-static int __devinit hdmi_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct resource *res;
- struct i2c_adapter *adapter;
- struct v4l2_subdev *sd;
- struct hdmi_device *hdmi_dev = NULL;
- struct s5p_hdmi_platform_data *pdata = dev->platform_data;
- int ret;
-
- dev_dbg(dev, "probe start\n");
-
- 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;
- goto fail;
- }
-
- hdmi_dev->dev = dev;
-
- ret = hdmi_resources_init(hdmi_dev);
- if (ret)
- goto fail;
-
- /* mapping HDMI registers */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(dev, "get memory resource failed.\n");
- ret = -ENXIO;
- goto fail_init;
- }
-
- 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_init;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (res == NULL) {
- dev_err(dev, "get interrupt resource failed.\n");
- ret = -ENXIO;
- goto fail_init;
- }
-
- 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_init;
- }
- hdmi_dev->irq = res->start;
-
- /* setting v4l2 name to prevent WARN_ON in v4l2_device_register */
- strlcpy(hdmi_dev->v4l2_dev.name, dev_name(dev),
- sizeof(hdmi_dev->v4l2_dev.name));
- /* passing NULL owner prevents driver from erasing drvdata */
- ret = v4l2_device_register(NULL, &hdmi_dev->v4l2_dev);
- if (ret) {
- dev_err(dev, "could not register v4l2 device.\n");
- goto fail_init;
- }
-
- /* 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,
- adapter, pdata->hdmiphy_info, NULL);
- /* on failure or not adapter is no longer useful */
- 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);
-
- sd = &hdmi_dev->sd;
- v4l2_subdev_init(sd, &hdmi_sd_ops);
- sd->owner = THIS_MODULE;
-
- strlcpy(sd->name, "s5p-hdmi", sizeof sd->name);
- hdmi_dev->cur_preset = HDMI_DEFAULT_PRESET;
- /* FIXME: missing fail preset is not supported */
- hdmi_dev->cur_conf = hdmi_preset2timings(hdmi_dev->cur_preset);
- hdmi_dev->cur_conf_dirty = 1;
-
- /* storing subdev for call that have only access to struct device */
- dev_set_drvdata(dev, sd);
-
- dev_info(dev, "probe successful\n");
-
- return 0;
-
-fail_vdev:
- v4l2_device_unregister(&hdmi_dev->v4l2_dev);
-
-fail_init:
- hdmi_resources_cleanup(hdmi_dev);
-
-fail:
- dev_err(dev, "probe failed\n");
- return ret;
-}
-
-static int __devexit hdmi_remove(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct v4l2_subdev *sd = dev_get_drvdata(dev);
- struct hdmi_device *hdmi_dev = sd_to_hdmi_dev(sd);
-
- pm_runtime_disable(dev);
- clk_disable(hdmi_dev->res.hdmi);
- v4l2_device_unregister(&hdmi_dev->v4l2_dev);
- disable_irq(hdmi_dev->irq);
- hdmi_resources_cleanup(hdmi_dev);
- dev_info(dev, "remove successful\n");
-
- return 0;
-}
-
-static struct platform_driver hdmi_driver __refdata = {
- .probe = hdmi_probe,
- .remove = __devexit_p(hdmi_remove),
- .id_table = hdmi_driver_types,
- .driver = {
- .name = "s5p-hdmi",
- .owner = THIS_MODULE,
- .pm = &hdmi_pm_ops,
- }
-};
-
-module_platform_driver(hdmi_driver);