Release 4.11 drivers/gpu/drm/imx/dw_hdmi-imx.c
/* Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
*
* derived from imx-hdmi.c(renamed to bridge/dw_hdmi.c now)
*
* 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/module.h>
#include <linux/platform_device.h>
#include <linux/component.h>
#include <linux/mfd/syscon.h>
#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
#include <drm/bridge/dw_hdmi.h>
#include <video/imx-ipu-v3.h>
#include <linux/regmap.h>
#include <drm/drm_of.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_encoder_slave.h>
#include "imx-drm.h"
struct imx_hdmi {
struct device *dev;
struct drm_encoder encoder;
struct regmap *regmap;
};
static inline struct imx_hdmi *enc_to_imx_hdmi(struct drm_encoder *e)
{
return container_of(e, struct imx_hdmi, encoder);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Philipp Zabel | 25 | 100.00% | 1 | 100.00% |
| Total | 25 | 100.00% | 1 | 100.00% |
static const struct dw_hdmi_mpll_config imx_mpll_cfg[] = {
{
45250000, {
{ 0x01e0, 0x0000 },
{ 0x21e1, 0x0000 },
{ 0x41e2, 0x0000 }
},
}, {
92500000, {
{ 0x0140, 0x0005 },
{ 0x2141, 0x0005 },
{ 0x4142, 0x0005 },
},
}, {
148500000, {
{ 0x00a0, 0x000a },
{ 0x20a1, 0x000a },
{ 0x40a2, 0x000a },
},
}, {
216000000, {
{ 0x00a0, 0x000a },
{ 0x2001, 0x000f },
{ 0x4002, 0x000f },
},
}, {
~0UL, {
{ 0x0000, 0x0000 },
{ 0x0000, 0x0000 },
{ 0x0000, 0x0000 },
},
}
};
static const struct dw_hdmi_curr_ctrl imx_cur_ctr[] = {
/* pixelclk bpp8 bpp10 bpp12 */
{
54000000, { 0x091c, 0x091c, 0x06dc },
}, {
58400000, { 0x091c, 0x06dc, 0x06dc },
}, {
72000000, { 0x06dc, 0x06dc, 0x091c },
}, {
74250000, { 0x06dc, 0x0b5c, 0x091c },
}, {
118800000, { 0x091c, 0x091c, 0x06dc },
}, {
216000000, { 0x06dc, 0x0b5c, 0x091c },
}, {
~0UL, { 0x0000, 0x0000, 0x0000 },
},
};
/*
* Resistance term 133Ohm Cfg
* PREEMP config 0.00
* TX/CK level 10
*/
static const struct dw_hdmi_phy_config imx_phy_config[] = {
/*pixelclk symbol term vlev */
{ 216000000, 0x800d, 0x0005, 0x01ad},
{ ~0UL, 0x0000, 0x0000, 0x0000}
};
static int dw_hdmi_imx_parse_dt(struct imx_hdmi *hdmi)
{
struct device_node *np = hdmi->dev->of_node;
hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");
if (IS_ERR(hdmi->regmap)) {
dev_err(hdmi->dev, "Unable to get gpr\n");
return PTR_ERR(hdmi->regmap);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 64 | 100.00% | 2 | 100.00% |
| Total | 64 | 100.00% | 2 | 100.00% |
static void dw_hdmi_imx_encoder_disable(struct drm_encoder *encoder)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 10 | 100.00% | 2 | 100.00% |
| Total | 10 | 100.00% | 2 | 100.00% |
static void dw_hdmi_imx_encoder_enable(struct drm_encoder *encoder)
{
struct imx_hdmi *hdmi = enc_to_imx_hdmi(encoder);
int mux = drm_of_encoder_active_port_id(hdmi->dev->of_node, encoder);
regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,
IMX6Q_GPR3_HDMI_MUX_CTL_MASK,
mux << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 42 | 84.00% | 2 | 33.33% |
| Liu Ying | 5 | 10.00% | 2 | 33.33% |
| Philipp Zabel | 3 | 6.00% | 2 | 33.33% |
| Total | 50 | 100.00% | 6 | 100.00% |
static int dw_hdmi_imx_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct imx_crtc_state *imx_crtc_state = to_imx_crtc_state(crtc_state);
imx_crtc_state->bus_format = MEDIA_BUS_FMT_RGB888_1X24;
imx_crtc_state->di_hsync_pin = 2;
imx_crtc_state->di_vsync_pin = 3;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Philipp Zabel | 52 | 100.00% | 1 | 100.00% |
| Total | 52 | 100.00% | 1 | 100.00% |
static const struct drm_encoder_helper_funcs dw_hdmi_imx_encoder_helper_funcs = {
.enable = dw_hdmi_imx_encoder_enable,
.disable = dw_hdmi_imx_encoder_disable,
.atomic_check = dw_hdmi_imx_atomic_check,
};
static const struct drm_encoder_funcs dw_hdmi_imx_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static enum drm_mode_status imx6q_hdmi_mode_valid(struct drm_connector *con,
struct drm_display_mode *mode)
{
if (mode->clock < 13500)
return MODE_CLOCK_LOW;
/* FIXME: Hardware is capable of 266MHz, but setup data is missing. */
if (mode->clock > 216000)
return MODE_CLOCK_HIGH;
return MODE_OK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Philipp Zabel | 41 | 95.35% | 1 | 50.00% |
| Lucas Stach | 2 | 4.65% | 1 | 50.00% |
| Total | 43 | 100.00% | 2 | 100.00% |
static enum drm_mode_status imx6dl_hdmi_mode_valid(struct drm_connector *con,
struct drm_display_mode *mode)
{
if (mode->clock < 13500)
return MODE_CLOCK_LOW;
/* FIXME: Hardware is capable of 270MHz, but setup data is missing. */
if (mode->clock > 216000)
return MODE_CLOCK_HIGH;
return MODE_OK;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Philipp Zabel | 41 | 95.35% | 1 | 50.00% |
| Lucas Stach | 2 | 4.65% | 1 | 50.00% |
| Total | 43 | 100.00% | 2 | 100.00% |
static struct dw_hdmi_plat_data imx6q_hdmi_drv_data = {
.mpll_cfg = imx_mpll_cfg,
.cur_ctr = imx_cur_ctr,
.phy_config = imx_phy_config,
.dev_type = IMX6Q_HDMI,
.mode_valid = imx6q_hdmi_mode_valid,
};
static struct dw_hdmi_plat_data imx6dl_hdmi_drv_data = {
.mpll_cfg = imx_mpll_cfg,
.cur_ctr = imx_cur_ctr,
.phy_config = imx_phy_config,
.dev_type = IMX6DL_HDMI,
.mode_valid = imx6dl_hdmi_mode_valid,
};
static const struct of_device_id dw_hdmi_imx_dt_ids[] = {
{ .compatible = "fsl,imx6q-hdmi",
.data = &imx6q_hdmi_drv_data
}, {
.compatible = "fsl,imx6dl-hdmi",
.data = &imx6dl_hdmi_drv_data
},
{},
};
MODULE_DEVICE_TABLE(of, dw_hdmi_imx_dt_ids);
static int dw_hdmi_imx_bind(struct device *dev, struct device *master,
void *data)
{
struct platform_device *pdev = to_platform_device(dev);
const struct dw_hdmi_plat_data *plat_data;
const struct of_device_id *match;
struct drm_device *drm = data;
struct drm_encoder *encoder;
struct imx_hdmi *hdmi;
int ret;
if (!pdev->dev.of_node)
return -ENODEV;
hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
if (!hdmi)
return -ENOMEM;
match = of_match_node(dw_hdmi_imx_dt_ids, pdev->dev.of_node);
plat_data = match->data;
hdmi->dev = &pdev->dev;
encoder = &hdmi->encoder;
encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
/*
* If we failed to find the CRTC(s) which this encoder is
* supposed to be connected to, it's because the CRTC has
* not been registered yet. Defer probing, and hope that
* the required CRTC is added later.
*/
if (encoder->possible_crtcs == 0)
return -EPROBE_DEFER;
ret = dw_hdmi_imx_parse_dt(hdmi);
if (ret < 0)
return ret;
drm_encoder_helper_add(encoder, &dw_hdmi_imx_encoder_helper_funcs);
drm_encoder_init(drm, encoder, &dw_hdmi_imx_encoder_funcs,
DRM_MODE_ENCODER_TMDS, NULL);
ret = dw_hdmi_bind(pdev, encoder, plat_data);
/*
* If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),
* which would have called the encoder cleanup. Do it manually.
*/
if (ret)
drm_encoder_cleanup(encoder);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 207 | 92.00% | 2 | 40.00% |
| Douglas Anderson | 15 | 6.67% | 1 | 20.00% |
| Ville Syrjälä | 2 | 0.89% | 1 | 20.00% |
| Laurent Pinchart | 1 | 0.44% | 1 | 20.00% |
| Total | 225 | 100.00% | 5 | 100.00% |
static void dw_hdmi_imx_unbind(struct device *dev, struct device *master,
void *data)
{
return dw_hdmi_unbind(dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 26 | 100.00% | 2 | 100.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
static const struct component_ops dw_hdmi_imx_ops = {
.bind = dw_hdmi_imx_bind,
.unbind = dw_hdmi_imx_unbind,
};
static int dw_hdmi_imx_probe(struct platform_device *pdev)
{
return component_add(&pdev->dev, &dw_hdmi_imx_ops);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 23 | 100.00% | 2 | 100.00% |
| Total | 23 | 100.00% | 2 | 100.00% |
static int dw_hdmi_imx_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &dw_hdmi_imx_ops);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 25 | 100.00% | 2 | 100.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
static struct platform_driver dw_hdmi_imx_platform_driver = {
.probe = dw_hdmi_imx_probe,
.remove = dw_hdmi_imx_remove,
.driver = {
.name = "dwhdmi-imx",
.of_match_table = dw_hdmi_imx_dt_ids,
},
};
module_platform_driver(dw_hdmi_imx_platform_driver);
MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
MODULE_DESCRIPTION("IMX6 Specific DW-HDMI Driver Extension");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:dwhdmi-imx");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andy Yan | 867 | 76.79% | 3 | 18.75% |
| Philipp Zabel | 192 | 17.01% | 4 | 25.00% |
| Lucas Stach | 31 | 2.75% | 1 | 6.25% |
| Douglas Anderson | 15 | 1.33% | 1 | 6.25% |
| Yakir Yang | 11 | 0.97% | 1 | 6.25% |
| Liu Ying | 7 | 0.62% | 2 | 12.50% |
| Ville Syrjälä | 4 | 0.35% | 2 | 12.50% |
| Laurent Pinchart | 1 | 0.09% | 1 | 6.25% |
| Russell King | 1 | 0.09% | 1 | 6.25% |
| Total | 1129 | 100.00% | 16 | 100.00% |
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