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linux_dsm_epyc7002/drivers/gpu/drm/vc4/vc4_vec.c
Eric Anholt c9be804c8c drm/vc4: Use common helpers for debugfs setup by the driver components. 
The global list of all debugfs entries for the driver was painful: the
list couldn't see into the components' structs, so each component had
its own debugs show function to find the component, then find the
regset and dump it.  The components also had to be careful to check
that they were actually registered in vc4 before dereferencing
themselves, in case they weren't probed on a particular platform.
They routinely failed at that.

Instead, we can have the components add their debugfs callbacks to a
little list in vc4 to be registered at drm_dev_register() time, which
gets vc4_debugfs.c out of the business of knowing the whole list of
components.

Thanks to this change, dsi0 (if it existed) would register its node.

v2: Rebase on hvs_underrun addition.
v3: whitespace fixup

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190401183559.3823-1-eric@anholt.net
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
2019-04-03 12:49:13 -07:00

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/*
* Copyright (C) 2016 Broadcom
*
* 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* DOC: VC4 SDTV module
*
* The VEC encoder generates PAL or NTSC composite video output.
*
* TV mode selection is done by an atomic property on the encoder,
* because a drm_mode_modeinfo is insufficient to distinguish between
* PAL and PAL-M or NTSC and NTSC-J.
*/
#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_panel.h>
#include <drm/drm_probe_helper.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/of_graph.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>
#include "vc4_drv.h"
#include "vc4_regs.h"
/* WSE Registers */
#define VEC_WSE_RESET 0xc0
#define VEC_WSE_CONTROL 0xc4
#define VEC_WSE_WSS_ENABLE BIT(7)
#define VEC_WSE_WSS_DATA 0xc8
#define VEC_WSE_VPS_DATA1 0xcc
#define VEC_WSE_VPS_CONTROL 0xd0
/* VEC Registers */
#define VEC_REVID 0x100
#define VEC_CONFIG0 0x104
#define VEC_CONFIG0_YDEL_MASK GENMASK(28, 26)
#define VEC_CONFIG0_YDEL(x) ((x) << 26)
#define VEC_CONFIG0_CDEL_MASK GENMASK(25, 24)
#define VEC_CONFIG0_CDEL(x) ((x) << 24)
#define VEC_CONFIG0_PBPR_FIL BIT(18)
#define VEC_CONFIG0_CHROMA_GAIN_MASK GENMASK(17, 16)
#define VEC_CONFIG0_CHROMA_GAIN_UNITY (0 << 16)
#define VEC_CONFIG0_CHROMA_GAIN_1_32 (1 << 16)
#define VEC_CONFIG0_CHROMA_GAIN_1_16 (2 << 16)
#define VEC_CONFIG0_CHROMA_GAIN_1_8 (3 << 16)
#define VEC_CONFIG0_CBURST_GAIN_MASK GENMASK(14, 13)
#define VEC_CONFIG0_CBURST_GAIN_UNITY (0 << 13)
#define VEC_CONFIG0_CBURST_GAIN_1_128 (1 << 13)
#define VEC_CONFIG0_CBURST_GAIN_1_64 (2 << 13)
#define VEC_CONFIG0_CBURST_GAIN_1_32 (3 << 13)
#define VEC_CONFIG0_CHRBW1 BIT(11)
#define VEC_CONFIG0_CHRBW0 BIT(10)
#define VEC_CONFIG0_SYNCDIS BIT(9)
#define VEC_CONFIG0_BURDIS BIT(8)
#define VEC_CONFIG0_CHRDIS BIT(7)
#define VEC_CONFIG0_PDEN BIT(6)
#define VEC_CONFIG0_YCDELAY BIT(4)
#define VEC_CONFIG0_RAMPEN BIT(2)
#define VEC_CONFIG0_YCDIS BIT(2)
#define VEC_CONFIG0_STD_MASK GENMASK(1, 0)
#define VEC_CONFIG0_NTSC_STD 0
#define VEC_CONFIG0_PAL_BDGHI_STD 1
#define VEC_CONFIG0_PAL_N_STD 3
#define VEC_SCHPH 0x108
#define VEC_SOFT_RESET 0x10c
#define VEC_CLMP0_START 0x144
#define VEC_CLMP0_END 0x148
#define VEC_FREQ3_2 0x180
#define VEC_FREQ1_0 0x184
#define VEC_CONFIG1 0x188
#define VEC_CONFIG_VEC_RESYNC_OFF BIT(18)
#define VEC_CONFIG_RGB219 BIT(17)
#define VEC_CONFIG_CBAR_EN BIT(16)
#define VEC_CONFIG_TC_OBB BIT(15)
#define VEC_CONFIG1_OUTPUT_MODE_MASK GENMASK(12, 10)
#define VEC_CONFIG1_C_Y_CVBS (0 << 10)
#define VEC_CONFIG1_CVBS_Y_C (1 << 10)
#define VEC_CONFIG1_PR_Y_PB (2 << 10)
#define VEC_CONFIG1_RGB (4 << 10)
#define VEC_CONFIG1_Y_C_CVBS (5 << 10)
#define VEC_CONFIG1_C_CVBS_Y (6 << 10)
#define VEC_CONFIG1_C_CVBS_CVBS (7 << 10)
#define VEC_CONFIG1_DIS_CHR BIT(9)
#define VEC_CONFIG1_DIS_LUMA BIT(8)
#define VEC_CONFIG1_YCBCR_IN BIT(6)
#define VEC_CONFIG1_DITHER_TYPE_LFSR 0
#define VEC_CONFIG1_DITHER_TYPE_COUNTER BIT(5)
#define VEC_CONFIG1_DITHER_EN BIT(4)
#define VEC_CONFIG1_CYDELAY BIT(3)
#define VEC_CONFIG1_LUMADIS BIT(2)
#define VEC_CONFIG1_COMPDIS BIT(1)
#define VEC_CONFIG1_CUSTOM_FREQ BIT(0)
#define VEC_CONFIG2 0x18c
#define VEC_CONFIG2_PROG_SCAN BIT(15)
#define VEC_CONFIG2_SYNC_ADJ_MASK GENMASK(14, 12)
#define VEC_CONFIG2_SYNC_ADJ(x) (((x) / 2) << 12)
#define VEC_CONFIG2_PBPR_EN BIT(10)
#define VEC_CONFIG2_UV_DIG_DIS BIT(6)
#define VEC_CONFIG2_RGB_DIG_DIS BIT(5)
#define VEC_CONFIG2_TMUX_MASK GENMASK(3, 2)
#define VEC_CONFIG2_TMUX_DRIVE0 (0 << 2)
#define VEC_CONFIG2_TMUX_RG_COMP (1 << 2)
#define VEC_CONFIG2_TMUX_UV_YC (2 << 2)
#define VEC_CONFIG2_TMUX_SYNC_YC (3 << 2)
#define VEC_INTERRUPT_CONTROL 0x190
#define VEC_INTERRUPT_STATUS 0x194
#define VEC_FCW_SECAM_B 0x198
#define VEC_SECAM_GAIN_VAL 0x19c
#define VEC_CONFIG3 0x1a0
#define VEC_CONFIG3_HORIZ_LEN_STD (0 << 0)
#define VEC_CONFIG3_HORIZ_LEN_MPEG1_SIF (1 << 0)
#define VEC_CONFIG3_SHAPE_NON_LINEAR BIT(1)
#define VEC_STATUS0 0x200
#define VEC_MASK0 0x204
#define VEC_CFG 0x208
#define VEC_CFG_SG_MODE_MASK GENMASK(6, 5)
#define VEC_CFG_SG_MODE(x) ((x) << 5)
#define VEC_CFG_SG_EN BIT(4)
#define VEC_CFG_VEC_EN BIT(3)
#define VEC_CFG_MB_EN BIT(2)
#define VEC_CFG_ENABLE BIT(1)
#define VEC_CFG_TB_EN BIT(0)
#define VEC_DAC_TEST 0x20c
#define VEC_DAC_CONFIG 0x210
#define VEC_DAC_CONFIG_LDO_BIAS_CTRL(x) ((x) << 24)
#define VEC_DAC_CONFIG_DRIVER_CTRL(x) ((x) << 16)
#define VEC_DAC_CONFIG_DAC_CTRL(x) (x)
#define VEC_DAC_MISC 0x214
#define VEC_DAC_MISC_VCD_CTRL_MASK GENMASK(31, 16)
#define VEC_DAC_MISC_VCD_CTRL(x) ((x) << 16)
#define VEC_DAC_MISC_VID_ACT BIT(8)
#define VEC_DAC_MISC_VCD_PWRDN BIT(6)
#define VEC_DAC_MISC_BIAS_PWRDN BIT(5)
#define VEC_DAC_MISC_DAC_PWRDN BIT(2)
#define VEC_DAC_MISC_LDO_PWRDN BIT(1)
#define VEC_DAC_MISC_DAC_RST_N BIT(0)
/* General VEC hardware state. */
struct vc4_vec {
struct platform_device *pdev;
struct drm_encoder *encoder;
struct drm_connector *connector;
void __iomem *regs;
struct clk *clock;
const struct vc4_vec_tv_mode *tv_mode;
struct debugfs_regset32 regset;
};
#define VEC_READ(offset) readl(vec->regs + (offset))
#define VEC_WRITE(offset, val) writel(val, vec->regs + (offset))
/* VC4 VEC encoder KMS struct */
struct vc4_vec_encoder {
struct vc4_encoder base;
struct vc4_vec *vec;
};
static inline struct vc4_vec_encoder *
to_vc4_vec_encoder(struct drm_encoder *encoder)
{
return container_of(encoder, struct vc4_vec_encoder, base.base);
}
/* VC4 VEC connector KMS struct */
struct vc4_vec_connector {
struct drm_connector base;
struct vc4_vec *vec;
/* Since the connector is attached to just the one encoder,
* this is the reference to it so we can do the best_encoder()
* hook.
*/
struct drm_encoder *encoder;
};
static inline struct vc4_vec_connector *
to_vc4_vec_connector(struct drm_connector *connector)
{
return container_of(connector, struct vc4_vec_connector, base);
}
enum vc4_vec_tv_mode_id {
VC4_VEC_TV_MODE_NTSC,
VC4_VEC_TV_MODE_NTSC_J,
VC4_VEC_TV_MODE_PAL,
VC4_VEC_TV_MODE_PAL_M,
};
struct vc4_vec_tv_mode {
const struct drm_display_mode *mode;
void (*mode_set)(struct vc4_vec *vec);
};
static const struct debugfs_reg32 vec_regs[] = {
VC4_REG32(VEC_WSE_CONTROL),
VC4_REG32(VEC_WSE_WSS_DATA),
VC4_REG32(VEC_WSE_VPS_DATA1),
VC4_REG32(VEC_WSE_VPS_CONTROL),
VC4_REG32(VEC_REVID),
VC4_REG32(VEC_CONFIG0),
VC4_REG32(VEC_SCHPH),
VC4_REG32(VEC_CLMP0_START),
VC4_REG32(VEC_CLMP0_END),
VC4_REG32(VEC_FREQ3_2),
VC4_REG32(VEC_FREQ1_0),
VC4_REG32(VEC_CONFIG1),
VC4_REG32(VEC_CONFIG2),
VC4_REG32(VEC_INTERRUPT_CONTROL),
VC4_REG32(VEC_INTERRUPT_STATUS),
VC4_REG32(VEC_FCW_SECAM_B),
VC4_REG32(VEC_SECAM_GAIN_VAL),
VC4_REG32(VEC_CONFIG3),
VC4_REG32(VEC_STATUS0),
VC4_REG32(VEC_MASK0),
VC4_REG32(VEC_CFG),
VC4_REG32(VEC_DAC_TEST),
VC4_REG32(VEC_DAC_CONFIG),
VC4_REG32(VEC_DAC_MISC),
};
static void vc4_vec_ntsc_mode_set(struct vc4_vec *vec)
{
VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN);
VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
}
static void vc4_vec_ntsc_j_mode_set(struct vc4_vec *vec)
{
VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_NTSC_STD);
VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
}
static const struct drm_display_mode ntsc_mode = {
DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
480, 480 + 3, 480 + 3 + 3, 480 + 3 + 3 + 16, 0,
DRM_MODE_FLAG_INTERLACE)
};
static void vc4_vec_pal_mode_set(struct vc4_vec *vec)
{
VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
VEC_WRITE(VEC_CONFIG1, VEC_CONFIG1_C_CVBS_CVBS);
}
static void vc4_vec_pal_m_mode_set(struct vc4_vec *vec)
{
VEC_WRITE(VEC_CONFIG0, VEC_CONFIG0_PAL_BDGHI_STD);
VEC_WRITE(VEC_CONFIG1,
VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ);
VEC_WRITE(VEC_FREQ3_2, 0x223b);
VEC_WRITE(VEC_FREQ1_0, 0x61d1);
}
static const struct drm_display_mode pal_mode = {
DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
576, 576 + 2, 576 + 2 + 3, 576 + 2 + 3 + 20, 0,
DRM_MODE_FLAG_INTERLACE)
};
static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
[VC4_VEC_TV_MODE_NTSC] = {
.mode = &ntsc_mode,
.mode_set = vc4_vec_ntsc_mode_set,
},
[VC4_VEC_TV_MODE_NTSC_J] = {
.mode = &ntsc_mode,
.mode_set = vc4_vec_ntsc_j_mode_set,
},
[VC4_VEC_TV_MODE_PAL] = {
.mode = &pal_mode,
.mode_set = vc4_vec_pal_mode_set,
},
[VC4_VEC_TV_MODE_PAL_M] = {
.mode = &pal_mode,
.mode_set = vc4_vec_pal_m_mode_set,
},
};
static enum drm_connector_status
vc4_vec_connector_detect(struct drm_connector *connector, bool force)
{
return connector_status_unknown;
}
static void vc4_vec_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
static int vc4_vec_connector_get_modes(struct drm_connector *connector)
{
struct drm_connector_state *state = connector->state;
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev,
vc4_vec_tv_modes[state->tv.mode].mode);
if (!mode) {
DRM_ERROR("Failed to create a new display mode\n");
return -ENOMEM;
}
drm_mode_probed_add(connector, mode);
return 1;
}
static const struct drm_connector_funcs vc4_vec_connector_funcs = {
.detect = vc4_vec_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = vc4_vec_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
static const struct drm_connector_helper_funcs vc4_vec_connector_helper_funcs = {
.get_modes = vc4_vec_connector_get_modes,
};
static struct drm_connector *vc4_vec_connector_init(struct drm_device *dev,
struct vc4_vec *vec)
{
struct drm_connector *connector = NULL;
struct vc4_vec_connector *vec_connector;
vec_connector = devm_kzalloc(dev->dev, sizeof(*vec_connector),
GFP_KERNEL);
if (!vec_connector)
return ERR_PTR(-ENOMEM);
connector = &vec_connector->base;
connector->interlace_allowed = true;
vec_connector->encoder = vec->encoder;
vec_connector->vec = vec;
drm_connector_init(dev, connector, &vc4_vec_connector_funcs,
DRM_MODE_CONNECTOR_Composite);
drm_connector_helper_add(connector, &vc4_vec_connector_helper_funcs);
drm_object_attach_property(&connector->base,
dev->mode_config.tv_mode_property,
VC4_VEC_TV_MODE_NTSC);
vec->tv_mode = &vc4_vec_tv_modes[VC4_VEC_TV_MODE_NTSC];
drm_connector_attach_encoder(connector, vec->encoder);
return connector;
}
static const struct drm_encoder_funcs vc4_vec_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static void vc4_vec_encoder_disable(struct drm_encoder *encoder)
{
struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
struct vc4_vec *vec = vc4_vec_encoder->vec;
int ret;
VEC_WRITE(VEC_CFG, 0);
VEC_WRITE(VEC_DAC_MISC,
VEC_DAC_MISC_VCD_PWRDN |
VEC_DAC_MISC_BIAS_PWRDN |
VEC_DAC_MISC_DAC_PWRDN |
VEC_DAC_MISC_LDO_PWRDN);
clk_disable_unprepare(vec->clock);
ret = pm_runtime_put(&vec->pdev->dev);
if (ret < 0) {
DRM_ERROR("Failed to release power domain: %d\n", ret);
return;
}
}
static void vc4_vec_encoder_enable(struct drm_encoder *encoder)
{
struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
struct vc4_vec *vec = vc4_vec_encoder->vec;
int ret;
ret = pm_runtime_get_sync(&vec->pdev->dev);
if (ret < 0) {
DRM_ERROR("Failed to retain power domain: %d\n", ret);
return;
}
/*
* We need to set the clock rate each time we enable the encoder
* because there's a chance we share the same parent with the HDMI
* clock, and both drivers are requesting different rates.
* The good news is, these 2 encoders cannot be enabled at the same
* time, thus preventing incompatible rate requests.
*/
ret = clk_set_rate(vec->clock, 108000000);
if (ret) {
DRM_ERROR("Failed to set clock rate: %d\n", ret);
return;
}
ret = clk_prepare_enable(vec->clock);
if (ret) {
DRM_ERROR("Failed to turn on core clock: %d\n", ret);
return;
}
/* Reset the different blocks */
VEC_WRITE(VEC_WSE_RESET, 1);
VEC_WRITE(VEC_SOFT_RESET, 1);
/* Disable the CGSM-A and WSE blocks */
VEC_WRITE(VEC_WSE_CONTROL, 0);
/* Write config common to all modes. */
/*
* Color subcarrier phase: phase = 360 * SCHPH / 256.
* 0x28 <=> 39.375 deg.
*/
VEC_WRITE(VEC_SCHPH, 0x28);
/*
* Reset to default values.
*/
VEC_WRITE(VEC_CLMP0_START, 0xac);
VEC_WRITE(VEC_CLMP0_END, 0xec);
VEC_WRITE(VEC_CONFIG2,
VEC_CONFIG2_UV_DIG_DIS | VEC_CONFIG2_RGB_DIG_DIS);
VEC_WRITE(VEC_CONFIG3, VEC_CONFIG3_HORIZ_LEN_STD);
VEC_WRITE(VEC_DAC_CONFIG,
VEC_DAC_CONFIG_DAC_CTRL(0xc) |
VEC_DAC_CONFIG_DRIVER_CTRL(0xc) |
VEC_DAC_CONFIG_LDO_BIAS_CTRL(0x46));
/* Mask all interrupts. */
VEC_WRITE(VEC_MASK0, 0);
vec->tv_mode->mode_set(vec);
VEC_WRITE(VEC_DAC_MISC,
VEC_DAC_MISC_VID_ACT | VEC_DAC_MISC_DAC_RST_N);
VEC_WRITE(VEC_CFG, VEC_CFG_VEC_EN);
}
static bool vc4_vec_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
return true;
}
static void vc4_vec_encoder_atomic_mode_set(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct vc4_vec_encoder *vc4_vec_encoder = to_vc4_vec_encoder(encoder);
struct vc4_vec *vec = vc4_vec_encoder->vec;
vec->tv_mode = &vc4_vec_tv_modes[conn_state->tv.mode];
}
static int vc4_vec_encoder_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
const struct vc4_vec_tv_mode *vec_mode;
vec_mode = &vc4_vec_tv_modes[conn_state->tv.mode];
if (conn_state->crtc &&
!drm_mode_equal(vec_mode->mode, &crtc_state->adjusted_mode))
return -EINVAL;
return 0;
}
static const struct drm_encoder_helper_funcs vc4_vec_encoder_helper_funcs = {
.disable = vc4_vec_encoder_disable,
.enable = vc4_vec_encoder_enable,
.mode_fixup = vc4_vec_encoder_mode_fixup,
.atomic_check = vc4_vec_encoder_atomic_check,
.atomic_mode_set = vc4_vec_encoder_atomic_mode_set,
};
static const struct of_device_id vc4_vec_dt_match[] = {
{ .compatible = "brcm,bcm2835-vec", .data = NULL },
{ /* sentinel */ },
};
static const char * const tv_mode_names[] = {
[VC4_VEC_TV_MODE_NTSC] = "NTSC",
[VC4_VEC_TV_MODE_NTSC_J] = "NTSC-J",
[VC4_VEC_TV_MODE_PAL] = "PAL",
[VC4_VEC_TV_MODE_PAL_M] = "PAL-M",
};
static int vc4_vec_bind(struct device *dev, struct device *master, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
struct drm_device *drm = dev_get_drvdata(master);
struct vc4_dev *vc4 = to_vc4_dev(drm);
struct vc4_vec *vec;
struct vc4_vec_encoder *vc4_vec_encoder;
int ret;
ret = drm_mode_create_tv_properties(drm, ARRAY_SIZE(tv_mode_names),
tv_mode_names);
if (ret)
return ret;
vec = devm_kzalloc(dev, sizeof(*vec), GFP_KERNEL);
if (!vec)
return -ENOMEM;
vc4_vec_encoder = devm_kzalloc(dev, sizeof(*vc4_vec_encoder),
GFP_KERNEL);
if (!vc4_vec_encoder)
return -ENOMEM;
vc4_vec_encoder->base.type = VC4_ENCODER_TYPE_VEC;
vc4_vec_encoder->vec = vec;
vec->encoder = &vc4_vec_encoder->base.base;
vec->pdev = pdev;
vec->regs = vc4_ioremap_regs(pdev, 0);
if (IS_ERR(vec->regs))
return PTR_ERR(vec->regs);
vec->regset.base = vec->regs;
vec->regset.regs = vec_regs;
vec->regset.nregs = ARRAY_SIZE(vec_regs);
vec->clock = devm_clk_get(dev, NULL);
if (IS_ERR(vec->clock)) {
ret = PTR_ERR(vec->clock);
if (ret != -EPROBE_DEFER)
DRM_ERROR("Failed to get clock: %d\n", ret);
return ret;
}
pm_runtime_enable(dev);
drm_encoder_init(drm, vec->encoder, &vc4_vec_encoder_funcs,
DRM_MODE_ENCODER_TVDAC, NULL);
drm_encoder_helper_add(vec->encoder, &vc4_vec_encoder_helper_funcs);
vec->connector = vc4_vec_connector_init(drm, vec);
if (IS_ERR(vec->connector)) {
ret = PTR_ERR(vec->connector);
goto err_destroy_encoder;
}
dev_set_drvdata(dev, vec);
vc4->vec = vec;
vc4_debugfs_add_regset32(drm, "vec_regs", &vec->regset);
return 0;
err_destroy_encoder:
drm_encoder_cleanup(vec->encoder);
pm_runtime_disable(dev);
return ret;
}
static void vc4_vec_unbind(struct device *dev, struct device *master,
void *data)
{
struct drm_device *drm = dev_get_drvdata(master);
struct vc4_dev *vc4 = to_vc4_dev(drm);
struct vc4_vec *vec = dev_get_drvdata(dev);
vc4_vec_connector_destroy(vec->connector);
drm_encoder_cleanup(vec->encoder);
pm_runtime_disable(dev);
vc4->vec = NULL;
}
static const struct component_ops vc4_vec_ops = {
.bind = vc4_vec_bind,
.unbind = vc4_vec_unbind,
};
static int vc4_vec_dev_probe(struct platform_device *pdev)
{
return component_add(&pdev->dev, &vc4_vec_ops);
}
static int vc4_vec_dev_remove(struct platform_device *pdev)
{
component_del(&pdev->dev, &vc4_vec_ops);
return 0;
}
struct platform_driver vc4_vec_driver = {
.probe = vc4_vec_dev_probe,
.remove = vc4_vec_dev_remove,
.driver = {
.name = "vc4_vec",
.of_match_table = vc4_vec_dt_match,
},
};
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