Release 4.15 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_crtc.c
/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* Freescale DCU drm device driver
*
* 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 Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/clk.h>
#include <linux/regmap.h>
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include "fsl_dcu_drm_crtc.h"
#include "fsl_dcu_drm_drv.h"
#include "fsl_dcu_drm_plane.h"
static void fsl_dcu_drm_crtc_atomic_flush(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
struct drm_pending_vblank_event *event = crtc->state->event;
regmap_write(fsl_dev->regmap,
DCU_UPDATE_MODE, DCU_UPDATE_MODE_READREG);
if (event) {
crtc->state->event = NULL;
spin_lock_irq(&crtc->dev->event_lock);
if (drm_crtc_vblank_get(crtc) == 0)
drm_crtc_arm_vblank_event(crtc, event);
else
drm_crtc_send_vblank_event(crtc, event);
spin_unlock_irq(&crtc->dev->event_lock);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Daniel Vetter | 65 | 57.02% | 1 | 33.33% |
| Stefan Agner | 29 | 25.44% | 1 | 33.33% |
| Jianwei Wang | 20 | 17.54% | 1 | 33.33% |
| Total | 114 | 100.00% | 3 | 100.00% |
static void fsl_dcu_drm_crtc_atomic_disable(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
/* always disable planes on the CRTC */
drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, true);
drm_crtc_vblank_off(crtc);
regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE,
DCU_MODE_DCU_MODE_MASK,
DCU_MODE_DCU_MODE(DCU_MODE_OFF));
regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE,
DCU_UPDATE_MODE_READREG);
clk_disable_unprepare(fsl_dev->pix_clk);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jianwei Wang | 55 | 67.90% | 1 | 25.00% |
| Stefan Agner | 26 | 32.10% | 3 | 75.00% |
| Total | 81 | 100.00% | 4 | 100.00% |
static void fsl_dcu_drm_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
clk_prepare_enable(fsl_dev->pix_clk);
regmap_update_bits(fsl_dev->regmap, DCU_DCU_MODE,
DCU_MODE_DCU_MODE_MASK,
DCU_MODE_DCU_MODE(DCU_MODE_NORMAL));
regmap_write(fsl_dev->regmap, DCU_UPDATE_MODE,
DCU_UPDATE_MODE_READREG);
drm_crtc_vblank_on(crtc);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jianwei Wang | 55 | 75.34% | 1 | 25.00% |
| Stefan Agner | 12 | 16.44% | 2 | 50.00% |
| Laurent Pinchart | 6 | 8.22% | 1 | 25.00% |
| Total | 73 | 100.00% | 4 | 100.00% |
static void fsl_dcu_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
struct drm_connector *con = &fsl_dev->connector.base;
struct drm_display_mode *mode = &crtc->state->mode;
unsigned int hbp, hfp, hsw, vbp, vfp, vsw, index, pol = 0;
index = drm_crtc_index(crtc);
clk_set_rate(fsl_dev->pix_clk, mode->clock * 1000);
/* Configure timings: */
hbp = mode->htotal - mode->hsync_end;
hfp = mode->hsync_start - mode->hdisplay;
hsw = mode->hsync_end - mode->hsync_start;
vbp = mode->vtotal - mode->vsync_end;
vfp = mode->vsync_start - mode->vdisplay;
vsw = mode->vsync_end - mode->vsync_start;
/* INV_PXCK as default (most display sample data on rising edge) */
if (!(con->display_info.bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE))
pol |= DCU_SYN_POL_INV_PXCK;
if (mode->flags & DRM_MODE_FLAG_NHSYNC)
pol |= DCU_SYN_POL_INV_HS_LOW;
if (mode->flags & DRM_MODE_FLAG_NVSYNC)
pol |= DCU_SYN_POL_INV_VS_LOW;
regmap_write(fsl_dev->regmap, DCU_HSYN_PARA,
DCU_HSYN_PARA_BP(hbp) |
DCU_HSYN_PARA_PW(hsw) |
DCU_HSYN_PARA_FP(hfp));
regmap_write(fsl_dev->regmap, DCU_VSYN_PARA,
DCU_VSYN_PARA_BP(vbp) |
DCU_VSYN_PARA_PW(vsw) |
DCU_VSYN_PARA_FP(vfp));
regmap_write(fsl_dev->regmap, DCU_DISP_SIZE,
DCU_DISP_SIZE_DELTA_Y(mode->vdisplay) |
DCU_DISP_SIZE_DELTA_X(mode->hdisplay));
regmap_write(fsl_dev->regmap, DCU_SYN_POL, pol);
regmap_write(fsl_dev->regmap, DCU_BGND, DCU_BGND_R(0) |
DCU_BGND_G(0) | DCU_BGND_B(0));
regmap_write(fsl_dev->regmap, DCU_DCU_MODE,
DCU_MODE_BLEND_ITER(1) | DCU_MODE_RASTER_EN);
regmap_write(fsl_dev->regmap, DCU_THRESHOLD,
DCU_THRESHOLD_LS_BF_VS(BF_VS_VAL) |
DCU_THRESHOLD_OUT_BUF_HIGH(BUF_MAX_VAL) |
DCU_THRESHOLD_OUT_BUF_LOW(BUF_MIN_VAL));
return;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jianwei Wang | 279 | 81.34% | 1 | 20.00% |
| Stefan Agner | 64 | 18.66% | 4 | 80.00% |
| Total | 343 | 100.00% | 5 | 100.00% |
static const struct drm_crtc_helper_funcs fsl_dcu_drm_crtc_helper_funcs = {
.atomic_disable = fsl_dcu_drm_crtc_atomic_disable,
.atomic_flush = fsl_dcu_drm_crtc_atomic_flush,
.atomic_enable = fsl_dcu_drm_crtc_atomic_enable,
.mode_set_nofb = fsl_dcu_drm_crtc_mode_set_nofb,
};
static int fsl_dcu_drm_crtc_enable_vblank(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
unsigned int value;
regmap_read(fsl_dev->regmap, DCU_INT_MASK, &value);
value &= ~DCU_INT_MASK_VBLANK;
regmap_write(fsl_dev->regmap, DCU_INT_MASK, value);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 64 | 100.00% | 1 | 100.00% |
| Total | 64 | 100.00% | 1 | 100.00% |
static void fsl_dcu_drm_crtc_disable_vblank(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct fsl_dcu_drm_device *fsl_dev = dev->dev_private;
unsigned int value;
regmap_read(fsl_dev->regmap, DCU_INT_MASK, &value);
value |= DCU_INT_MASK_VBLANK;
regmap_write(fsl_dev->regmap, DCU_INT_MASK, value);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shawn Guo | 60 | 100.00% | 1 | 100.00% |
| Total | 60 | 100.00% | 1 | 100.00% |
static const struct drm_crtc_funcs fsl_dcu_drm_crtc_funcs = {
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.destroy = drm_crtc_cleanup,
.page_flip = drm_atomic_helper_page_flip,
.reset = drm_atomic_helper_crtc_reset,
.set_config = drm_atomic_helper_set_config,
.enable_vblank = fsl_dcu_drm_crtc_enable_vblank,
.disable_vblank = fsl_dcu_drm_crtc_disable_vblank,
};
int fsl_dcu_drm_crtc_create(struct fsl_dcu_drm_device *fsl_dev)
{
struct drm_plane *primary;
struct drm_crtc *crtc = &fsl_dev->crtc;
int ret;
fsl_dcu_drm_init_planes(fsl_dev->drm);
primary = fsl_dcu_drm_primary_create_plane(fsl_dev->drm);
if (!primary)
return -ENOMEM;
ret = drm_crtc_init_with_planes(fsl_dev->drm, crtc, primary, NULL,
&fsl_dcu_drm_crtc_funcs, NULL);
if (ret) {
primary->funcs->destroy(primary);
return ret;
}
drm_crtc_helper_add(crtc, &fsl_dcu_drm_crtc_helper_funcs);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jianwei Wang | 73 | 71.57% | 1 | 25.00% |
| Stefan Agner | 27 | 26.47% | 2 | 50.00% |
| Ville Syrjälä | 2 | 1.96% | 1 | 25.00% |
| Total | 102 | 100.00% | 4 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jianwei Wang | 573 | 60.70% | 1 | 6.67% |
| Stefan Agner | 162 | 17.16% | 10 | 66.67% |
| Shawn Guo | 134 | 14.19% | 1 | 6.67% |
| Daniel Vetter | 65 | 6.89% | 1 | 6.67% |
| Laurent Pinchart | 8 | 0.85% | 1 | 6.67% |
| Ville Syrjälä | 2 | 0.21% | 1 | 6.67% |
| Total | 944 | 100.00% | 15 | 100.00% |
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