[RESEND PATCH v2 4/7] drm/vc4: Add support for the VEC (Video Encoder) IP

The VEC IP is a TV DAC, providing support for PAL and NTSC standards.

Signed-off-by: Boris Brezillon boris.brezillon@free-electrons.com --- drivers/gpu/drm/vc4/Makefile | 1 + drivers/gpu/drm/vc4/vc4_debugfs.c | 1 + drivers/gpu/drm/vc4/vc4_drv.c | 1 + drivers/gpu/drm/vc4/vc4_drv.h | 5 + drivers/gpu/drm/vc4/vc4_vec.c | 657 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 665 insertions(+) create mode 100644 drivers/gpu/drm/vc4/vc4_vec.c

diff --git a/drivers/gpu/drm/vc4/Makefile b/drivers/gpu/drm/vc4/Makefile index fb77db755e0a..7757f69a8a77 100644 --- a/drivers/gpu/drm/vc4/Makefile +++ b/drivers/gpu/drm/vc4/Makefile @@ -11,6 +11,7 @@ vc4-y := \ vc4_kms.o \ vc4_gem.o \ vc4_hdmi.o \ + vc4_vec.o \ vc4_hvs.o \ vc4_irq.o \ vc4_plane.o \ diff --git a/drivers/gpu/drm/vc4/vc4_debugfs.c b/drivers/gpu/drm/vc4/vc4_debugfs.c index 245115d49c46..caf817bac885 100644 --- a/drivers/gpu/drm/vc4/vc4_debugfs.c +++ b/drivers/gpu/drm/vc4/vc4_debugfs.c @@ -19,6 +19,7 @@ static const struct drm_info_list vc4_debugfs_list[] = { {"bo_stats", vc4_bo_stats_debugfs, 0}, {"dpi_regs", vc4_dpi_debugfs_regs, 0}, {"hdmi_regs", vc4_hdmi_debugfs_regs, 0}, + {"vec_regs", vc4_vec_debugfs_regs, 0}, {"hvs_regs", vc4_hvs_debugfs_regs, 0}, {"crtc0_regs", vc4_crtc_debugfs_regs, 0, (void *)(uintptr_t)0}, {"crtc1_regs", vc4_crtc_debugfs_regs, 0, (void *)(uintptr_t)1}, diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 8703f56b7947..3e6cb78f7381 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -289,6 +289,7 @@ static const struct component_master_ops vc4_drm_ops = {

static struct platform_driver *const component_drivers[] = { &vc4_hdmi_driver, + &vc4_vec_driver, &vc4_dpi_driver, &vc4_hvs_driver, &vc4_crtc_driver, diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 946d48c33668..b3a46a51f9d0 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -17,6 +17,7 @@ struct vc4_dev { struct vc4_crtc *crtc[3]; struct vc4_v3d *v3d; struct vc4_dpi *dpi; + struct vc4_vec *vec;

struct drm_fbdev_cma *fbdev;

@@ -484,6 +485,10 @@ int vc4_queue_seqno_cb(struct drm_device *dev, extern struct platform_driver vc4_hdmi_driver; int vc4_hdmi_debugfs_regs(struct seq_file *m, void *unused);

+/* vc4_hdmi.c */ +extern struct platform_driver vc4_vec_driver; +int vc4_vec_debugfs_regs(struct seq_file *m, void *unused); + /* vc4_irq.c */ irqreturn_t vc4_irq(int irq, void *arg); void vc4_irq_preinstall(struct drm_device *dev); diff --git a/drivers/gpu/drm/vc4/vc4_vec.c b/drivers/gpu/drm/vc4/vc4_vec.c new file mode 100644 index 000000000000..2d4256fcc6f2 --- /dev/null +++ b/drivers/gpu/drm/vc4/vc4_vec.c @@ -0,0 +1,657 @@ +/* + * Copyright (C) 2016 Broadcom Limited + * + * 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 + */ + +#include <drm/drm_atomic_helper.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_edid.h> +#include <drm/drm_panel.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; +}; + +#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); +}; + +#define VEC_REG(reg) { reg, #reg } +static const struct { + u32 reg; + const char *name; +} vec_regs[] = { + VEC_REG(VEC_WSE_CONTROL), + VEC_REG(VEC_WSE_WSS_DATA), + VEC_REG(VEC_WSE_VPS_DATA1), + VEC_REG(VEC_WSE_VPS_CONTROL), + VEC_REG(VEC_REVID), + VEC_REG(VEC_CONFIG0), + VEC_REG(VEC_SCHPH), + VEC_REG(VEC_CLMP0_START), + VEC_REG(VEC_CLMP0_END), + VEC_REG(VEC_FREQ3_2), + VEC_REG(VEC_FREQ1_0), + VEC_REG(VEC_CONFIG1), + VEC_REG(VEC_CONFIG2), + VEC_REG(VEC_INTERRUPT_CONTROL), + VEC_REG(VEC_INTERRUPT_STATUS), + VEC_REG(VEC_FCW_SECAM_B), + VEC_REG(VEC_SECAM_GAIN_VAL), + VEC_REG(VEC_CONFIG3), + VEC_REG(VEC_STATUS0), + VEC_REG(VEC_MASK0), + VEC_REG(VEC_CFG), + VEC_REG(VEC_DAC_TEST), + VEC_REG(VEC_DAC_CONFIG), + VEC_REG(VEC_DAC_MISC), +}; + +#ifdef CONFIG_DEBUG_FS +int vc4_vec_debugfs_regs(struct seq_file *m, void *unused) +{ + struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *dev = node->minor->dev; + struct vc4_dev *vc4 = to_vc4_dev(dev); + struct vc4_vec *vec = vc4->vec; + int i; + + if (!vec) + return 0; + + for (i = 0; i < ARRAY_SIZE(vec_regs); i++) { + seq_printf(m, "%s (0x%04x): 0x%08x\n", + vec_regs[i].name, vec_regs[i].reg, + VEC_READ(vec_regs[i].reg)); + } + + return 0; +} +#endif + +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 = { + .dpms = drm_atomic_helper_connector_dpms, + .detect = vc4_vec_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .set_property = drm_atomic_helper_connector_set_property, + .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_mode_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->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; + + 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, + }, +};