Mediatek DRM Next for Linux 5.10

1. Move Mediatek HDMI PHY driver from DRM folder to PHY folder
 2. Convert mtk-dpi to drm_bridge API
 3. Disable tmds on mt2701
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Merge tag 'mediatek-drm-next-5.10' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next

Mediatek DRM Next for Linux 5.10

1. Move Mediatek HDMI PHY driver from DRM folder to PHY folder
2. Convert mtk-dpi to drm_bridge API
3. Disable tmds on mt2701

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200914231227.30500-1-chunkuang.hu@kernel.org
This commit is contained in:
Dave Airlie 2020-09-29 10:23:49 +10:00
commit 06c14f5c2d
20 changed files with 159 additions and 59 deletions

View File

@ -43,7 +43,7 @@ Required properties (all function blocks):
"mediatek,<chip>-dpi" - DPI controller, see mediatek,dpi.txt
"mediatek,<chip>-disp-mutex" - display mutex
"mediatek,<chip>-disp-od" - overdrive
the supported chips are mt2701, mt2712 and mt8173.
the supported chips are mt2701, mt7623, mt2712 and mt8173.
- reg: Physical base address and length of the function block register space
- interrupts: The interrupt signal from the function block (required, except for
merge and split function blocks).

View File

@ -7,7 +7,7 @@ output bus.
Required properties:
- compatible: "mediatek,<chip>-dpi"
the supported chips are mt2701 , mt8173 and mt8183.
the supported chips are mt2701, mt7623, mt8173 and mt8183.
- reg: Physical base address and length of the controller's registers
- interrupts: The interrupt signal from the function block.
- clocks: device clocks

View File

@ -7,7 +7,7 @@ channel output.
Required properties:
- compatible: "mediatek,<chip>-dsi"
the supported chips are mt2701, mt8173 and mt8183.
- the supported chips are mt2701, mt7623, mt8173 and mt8183.
- reg: Physical base address and length of the controller's registers
- interrupts: The interrupt signal from the function block.
- clocks: device clocks
@ -26,7 +26,7 @@ The MIPI TX configuration module controls the MIPI D-PHY.
Required properties:
- compatible: "mediatek,<chip>-mipi-tx"
the supported chips are mt2701, mt8173 and mt8183.
- the supported chips are mt2701, 7623, mt8173 and mt8183.
- reg: Physical base address and length of the controller's registers
- clocks: PLL reference clock
- clock-output-names: name of the output clock line to the DSI encoder

View File

@ -6,6 +6,7 @@ its parallel input.
Required properties:
- compatible: Should be "mediatek,<chip>-hdmi".
- the supported chips are mt2701, mt7623 and mt8173
- reg: Physical base address and length of the controller's registers
- interrupts: The interrupt signal from the function block.
- clocks: device clocks
@ -32,6 +33,7 @@ The HDMI CEC controller handles hotplug detection and CEC communication.
Required properties:
- compatible: Should be "mediatek,<chip>-cec"
- the supported chips are mt7623 and mt8173
- reg: Physical base address and length of the controller's registers
- interrupts: The interrupt signal from the function block.
- clocks: device clock
@ -44,6 +46,7 @@ The Mediatek's I2C controller is used to interface with I2C devices.
Required properties:
- compatible: Should be "mediatek,<chip>-hdmi-ddc"
- the supported chips are mt7623 and mt8173
- reg: Physical base address and length of the controller's registers
- clocks: device clock
- clock-names: Should be "ddc-i2c".
@ -56,6 +59,7 @@ output and drives the HDMI pads.
Required properties:
- compatible: "mediatek,<chip>-hdmi-phy"
- the supported chips are mt2701, mt7623 and mt8173
- reg: Physical base address and length of the module's registers
- clocks: PLL reference clock
- clock-names: must contain "pll_ref"

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@ -5827,6 +5827,7 @@ L: dri-devel@lists.freedesktop.org
S: Supported
F: Documentation/devicetree/bindings/display/mediatek/
F: drivers/gpu/drm/mediatek/
F: drivers/phy/mediatek/phy-mtk-hdmi*
DRM DRIVERS FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>

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@ -24,6 +24,6 @@ config DRM_MEDIATEK_HDMI
tristate "DRM HDMI Support for Mediatek SoCs"
depends on DRM_MEDIATEK
select SND_SOC_HDMI_CODEC if SND_SOC
select GENERIC_PHY
select PHY_MTK_HDMI
help
DRM/KMS HDMI driver for Mediatek SoCs

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@ -19,9 +19,6 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
mediatek-drm-hdmi-objs := mtk_cec.o \
mtk_hdmi.o \
mtk_hdmi_ddc.o \
mtk_mt2701_hdmi_phy.o \
mtk_mt8173_hdmi_phy.o \
mtk_hdmi_phy.o
mtk_hdmi_ddc.o
obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o

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@ -64,7 +64,8 @@ enum mtk_dpi_out_color_format {
struct mtk_dpi {
struct mtk_ddp_comp ddp_comp;
struct drm_encoder encoder;
struct drm_bridge *bridge;
struct drm_bridge bridge;
struct drm_bridge *next_bridge;
void __iomem *regs;
struct device *dev;
struct clk *engine_clk;
@ -83,9 +84,9 @@ struct mtk_dpi {
int refcount;
};
static inline struct mtk_dpi *mtk_dpi_from_encoder(struct drm_encoder *e)
static inline struct mtk_dpi *bridge_to_dpi(struct drm_bridge *b)
{
return container_of(e, struct mtk_dpi, encoder);
return container_of(b, struct mtk_dpi, bridge);
}
enum mtk_dpi_polarity {
@ -521,50 +522,53 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
return 0;
}
static bool mtk_dpi_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
static void mtk_dpi_encoder_destroy(struct drm_encoder *encoder)
{
return true;
drm_encoder_cleanup(encoder);
}
static void mtk_dpi_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
static const struct drm_encoder_funcs mtk_dpi_encoder_funcs = {
.destroy = mtk_dpi_encoder_destroy,
};
static int mtk_dpi_bridge_attach(struct drm_bridge *bridge,
enum drm_bridge_attach_flags flags)
{
struct mtk_dpi *dpi = mtk_dpi_from_encoder(encoder);
struct mtk_dpi *dpi = bridge_to_dpi(bridge);
return drm_bridge_attach(bridge->encoder, dpi->next_bridge,
&dpi->bridge, flags);
}
static void mtk_dpi_bridge_mode_set(struct drm_bridge *bridge,
const struct drm_display_mode *mode,
const struct drm_display_mode *adjusted_mode)
{
struct mtk_dpi *dpi = bridge_to_dpi(bridge);
drm_mode_copy(&dpi->mode, adjusted_mode);
}
static void mtk_dpi_encoder_disable(struct drm_encoder *encoder)
static void mtk_dpi_bridge_disable(struct drm_bridge *bridge)
{
struct mtk_dpi *dpi = mtk_dpi_from_encoder(encoder);
struct mtk_dpi *dpi = bridge_to_dpi(bridge);
mtk_dpi_power_off(dpi);
}
static void mtk_dpi_encoder_enable(struct drm_encoder *encoder)
static void mtk_dpi_bridge_enable(struct drm_bridge *bridge)
{
struct mtk_dpi *dpi = mtk_dpi_from_encoder(encoder);
struct mtk_dpi *dpi = bridge_to_dpi(bridge);
mtk_dpi_power_on(dpi);
mtk_dpi_set_display_mode(dpi, &dpi->mode);
}
static int mtk_dpi_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
return 0;
}
static const struct drm_encoder_helper_funcs mtk_dpi_encoder_helper_funcs = {
.mode_fixup = mtk_dpi_encoder_mode_fixup,
.mode_set = mtk_dpi_encoder_mode_set,
.disable = mtk_dpi_encoder_disable,
.enable = mtk_dpi_encoder_enable,
.atomic_check = mtk_dpi_atomic_check,
static const struct drm_bridge_funcs mtk_dpi_bridge_funcs = {
.attach = mtk_dpi_bridge_attach,
.mode_set = mtk_dpi_bridge_mode_set,
.disable = mtk_dpi_bridge_disable,
.enable = mtk_dpi_bridge_enable,
};
static void mtk_dpi_start(struct mtk_ddp_comp *comp)
@ -605,12 +609,10 @@ static int mtk_dpi_bind(struct device *dev, struct device *master, void *data)
dev_err(dev, "Failed to initialize decoder: %d\n", ret);
goto err_unregister;
}
drm_encoder_helper_add(&dpi->encoder, &mtk_dpi_encoder_helper_funcs);
/* Currently DPI0 is fixed to be driven by OVL1 */
dpi->encoder.possible_crtcs = BIT(1);
dpi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm_dev, dpi->ddp_comp);
ret = drm_bridge_attach(&dpi->encoder, dpi->bridge, NULL, 0);
ret = drm_bridge_attach(&dpi->encoder, &dpi->bridge, NULL, 0);
if (ret) {
dev_err(dev, "Failed to attach bridge: %d\n", ret);
goto err_cleanup;
@ -770,11 +772,11 @@ static int mtk_dpi_probe(struct platform_device *pdev)
}
ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
NULL, &dpi->bridge);
NULL, &dpi->next_bridge);
if (ret)
return ret;
dev_info(dev, "Found bridge node: %pOF\n", dpi->bridge->of_node);
dev_info(dev, "Found bridge node: %pOF\n", dpi->next_bridge->of_node);
comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DPI);
if (comp_id < 0) {
@ -791,8 +793,15 @@ static int mtk_dpi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dpi);
dpi->bridge.funcs = &mtk_dpi_bridge_funcs;
dpi->bridge.of_node = dev->of_node;
dpi->bridge.type = DRM_MODE_CONNECTOR_DPI;
drm_bridge_add(&dpi->bridge);
ret = component_add(dev, &mtk_dpi_component_ops);
if (ret) {
drm_bridge_remove(&dpi->bridge);
dev_err(dev, "Failed to add component: %d\n", ret);
return ret;
}
@ -802,7 +811,10 @@ static int mtk_dpi_probe(struct platform_device *pdev)
static int mtk_dpi_remove(struct platform_device *pdev)
{
struct mtk_dpi *dpi = platform_get_drvdata(pdev);
component_del(&pdev->dev, &mtk_dpi_component_ops);
drm_bridge_remove(&dpi->bridge);
return 0;
}

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@ -13,6 +13,8 @@
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/soc/mediatek/mtk-cmdq.h>
#include <drm/drm_print.h>
#include "mtk_drm_drv.h"
#include "mtk_drm_plane.h"
#include "mtk_drm_ddp_comp.h"
@ -412,6 +414,22 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
[DDP_COMPONENT_WDMA1] = { MTK_DISP_WDMA, 1, NULL },
};
static bool mtk_drm_find_comp_in_ddp(struct mtk_ddp_comp ddp_comp,
const enum mtk_ddp_comp_id *path,
unsigned int path_len)
{
unsigned int i;
if (path == NULL)
return false;
for (i = 0U; i < path_len; i++)
if (ddp_comp.id == path[i])
return true;
return false;
}
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type)
{
@ -427,6 +445,26 @@ int mtk_ddp_comp_get_id(struct device_node *node,
return -EINVAL;
}
unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
struct mtk_ddp_comp ddp_comp)
{
struct mtk_drm_private *private = drm->dev_private;
unsigned int ret = 0;
if (mtk_drm_find_comp_in_ddp(ddp_comp, private->data->main_path, private->data->main_len))
ret = BIT(0);
else if (mtk_drm_find_comp_in_ddp(ddp_comp, private->data->ext_path,
private->data->ext_len))
ret = BIT(1);
else if (mtk_drm_find_comp_in_ddp(ddp_comp, private->data->third_path,
private->data->third_len))
ret = BIT(2);
else
DRM_INFO("Failed to find comp in ddp table\n");
return ret;
}
int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
const struct mtk_ddp_comp_funcs *funcs)

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@ -202,6 +202,8 @@ static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp,
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type);
unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
struct mtk_ddp_comp ddp_comp);
int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
const struct mtk_ddp_comp_funcs *funcs);

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@ -74,6 +74,19 @@ static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
DDP_COMPONENT_DPI0,
};
static const enum mtk_ddp_comp_id mt7623_mtk_ddp_main[] = {
DDP_COMPONENT_OVL0,
DDP_COMPONENT_RDMA0,
DDP_COMPONENT_COLOR0,
DDP_COMPONENT_BLS,
DDP_COMPONENT_DPI0,
};
static const enum mtk_ddp_comp_id mt7623_mtk_ddp_ext[] = {
DDP_COMPONENT_RDMA1,
DDP_COMPONENT_DSI0,
};
static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
DDP_COMPONENT_OVL0,
DDP_COMPONENT_COLOR0,
@ -127,6 +140,14 @@ static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
.shadow_register = true,
};
static const struct mtk_mmsys_driver_data mt7623_mmsys_driver_data = {
.main_path = mt7623_mtk_ddp_main,
.main_len = ARRAY_SIZE(mt7623_mtk_ddp_main),
.ext_path = mt7623_mtk_ddp_ext,
.ext_len = ARRAY_SIZE(mt7623_mtk_ddp_ext),
.shadow_register = true,
};
static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
.main_path = mt2712_mtk_ddp_main,
.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
@ -422,6 +443,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
static const struct of_device_id mtk_drm_of_ids[] = {
{ .compatible = "mediatek,mt2701-mmsys",
.data = &mt2701_mmsys_driver_data},
{ .compatible = "mediatek,mt7623-mmsys",
.data = &mt7623_mmsys_driver_data},
{ .compatible = "mediatek,mt2712-mmsys",
.data = &mt2712_mmsys_driver_data},
{ .compatible = "mediatek,mt8173-mmsys",

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@ -970,11 +970,7 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)
return ret;
}
/*
* Currently display data paths are statically assigned to a crtc each.
* crtc 0 is OVL0 -> COLOR0 -> AAL -> OD -> RDMA0 -> UFOE -> DSI0
*/
dsi->encoder.possible_crtcs = 1;
dsi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm, dsi->ddp_comp);
ret = drm_bridge_attach(&dsi->encoder, &dsi->bridge, NULL,
DRM_BRIDGE_ATTACH_NO_CONNECTOR);

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@ -12,6 +12,7 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of_platform.h>
#include <linux/of.h>
@ -145,11 +146,16 @@ struct hdmi_audio_param {
struct hdmi_codec_params codec_params;
};
struct mtk_hdmi_conf {
bool tz_disabled;
};
struct mtk_hdmi {
struct drm_bridge bridge;
struct drm_bridge *next_bridge;
struct drm_connector conn;
struct device *dev;
const struct mtk_hdmi_conf *conf;
struct phy *phy;
struct device *cec_dev;
struct i2c_adapter *ddc_adpt;
@ -234,7 +240,6 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
{
struct arm_smccc_res res;
struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(hdmi->phy);
/*
* MT8173 HDMI hardware has an output control bit to enable/disable HDMI
@ -242,7 +247,7 @@ static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
* The ARM trusted firmware provides an API for the HDMI driver to set
* this control bit to enable HDMI output in supervisor mode.
*/
if (hdmi_phy->conf && hdmi_phy->conf->tz_disabled)
if (hdmi->conf && hdmi->conf->tz_disabled)
regmap_update_bits(hdmi->sys_regmap,
hdmi->sys_offset + HDMI_SYS_CFG20,
0x80008005, enable ? 0x80000005 : 0x8000);
@ -1723,6 +1728,7 @@ static int mtk_drm_hdmi_probe(struct platform_device *pdev)
return -ENOMEM;
hdmi->dev = dev;
hdmi->conf = of_device_get_match_data(dev);
ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
if (ret)
@ -1803,8 +1809,16 @@ static int mtk_hdmi_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
mtk_hdmi_suspend, mtk_hdmi_resume);
static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
.tz_disabled = true,
};
static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
{ .compatible = "mediatek,mt8173-hdmi", },
{ .compatible = "mediatek,mt2701-hdmi",
.data = &mtk_hdmi_conf_mt2701,
},
{ .compatible = "mediatek,mt8173-hdmi",
},
{}
};
@ -1819,7 +1833,6 @@ static struct platform_driver mtk_hdmi_driver = {
};
static struct platform_driver * const mtk_hdmi_drivers[] = {
&mtk_hdmi_phy_driver,
&mtk_hdmi_ddc_driver,
&mtk_cec_driver,
&mtk_hdmi_driver,

View File

@ -5,7 +5,6 @@
*/
#ifndef _MTK_HDMI_CTRL_H
#define _MTK_HDMI_CTRL_H
#include "mtk_hdmi_phy.h"
struct platform_driver;

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@ -35,3 +35,10 @@ config PHY_MTK_XSPHY
Enable this to support the SuperSpeedPlus XS-PHY transceiver for
USB3.1 GEN2 controllers on MediaTek chips. The driver supports
multiple USB2.0, USB3.1 GEN2 ports.
config PHY_MTK_HDMI
tristate "MediaTek HDMI-PHY Driver"
depends on ARCH_MEDIATEK && OF
select GENERIC_PHY
help
Support HDMI PHY for Mediatek SoCs.

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@ -6,3 +6,8 @@
obj-$(CONFIG_PHY_MTK_TPHY) += phy-mtk-tphy.o
obj-$(CONFIG_PHY_MTK_UFS) += phy-mtk-ufs.o
obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o
phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o
phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o
obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o

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@ -4,7 +4,7 @@
* Author: Chunhui Dai <chunhui.dai@mediatek.com>
*/
#include "mtk_hdmi_phy.h"
#include "phy-mtk-hdmi.h"
#define HDMI_CON0 0x00
#define RG_HDMITX_DRV_IBIAS 0
@ -237,8 +237,8 @@ static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
}
struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = {
.tz_disabled = true,
.flags = CLK_SET_RATE_GATE,
.pll_default_off = true,
.hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops,
.hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
.hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,

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@ -4,7 +4,7 @@
* Author: Jie Qiu <jie.qiu@mediatek.com>
*/
#include "mtk_hdmi_phy.h"
#include "phy-mtk-hdmi.h"
#define HDMI_CON0 0x00
#define RG_HDMITX_PLL_EN BIT(31)

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@ -4,7 +4,7 @@
* Author: Jie Qiu <jie.qiu@mediatek.com>
*/
#include "mtk_hdmi_phy.h"
#include "phy-mtk-hdmi.h"
static int mtk_hdmi_phy_power_on(struct phy *phy);
static int mtk_hdmi_phy_power_off(struct phy *phy);
@ -184,6 +184,9 @@ static int mtk_hdmi_phy_probe(struct platform_device *pdev)
return PTR_ERR(phy_provider);
}
if (hdmi_phy->conf->pll_default_off)
hdmi_phy->conf->hdmi_phy_disable_tmds(hdmi_phy);
return of_clk_add_provider(dev->of_node, of_clk_src_simple_get,
hdmi_phy->pll);
}
@ -205,6 +208,7 @@ struct platform_driver mtk_hdmi_phy_driver = {
.of_match_table = mtk_hdmi_phy_match,
},
};
module_platform_driver(mtk_hdmi_phy_driver);
MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");
MODULE_LICENSE("GPL v2");

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@ -20,8 +20,8 @@
struct mtk_hdmi_phy;
struct mtk_hdmi_phy_conf {
bool tz_disabled;
unsigned long flags;
bool pll_default_off;
const struct clk_ops *hdmi_phy_clk_ops;
void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
void (*hdmi_phy_disable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
@ -50,7 +50,6 @@ void mtk_hdmi_phy_mask(struct mtk_hdmi_phy *hdmi_phy, u32 offset,
u32 val, u32 mask);
struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw);
extern struct platform_driver mtk_hdmi_phy_driver;
extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;