diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp4/mdp4_dtv_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp4/mdp4_dtv_encoder.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_dtv_encoder.c b/drivers/gpu/drm/msm/mdp4/mdp4_dtv_encoder.c deleted file mode 100644 index 5e0dcae70ab5..000000000000 --- a/drivers/gpu/drm/msm/mdp4/mdp4_dtv_encoder.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * Copyright (C) 2013 Red Hat - * Author: Rob Clark <robdclark@gmail.com> - * - * 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/>. - */ - -#include <mach/clk.h> - -#include "mdp4_kms.h" - -#include "drm_crtc.h" -#include "drm_crtc_helper.h" - - -struct mdp4_dtv_encoder { - struct drm_encoder base; - struct clk *src_clk; - struct clk *hdmi_clk; - struct clk *mdp_clk; - unsigned long int pixclock; - bool enabled; - uint32_t bsc; -}; -#define to_mdp4_dtv_encoder(x) container_of(x, struct mdp4_dtv_encoder, base) - -static struct mdp4_kms *get_kms(struct drm_encoder *encoder) -{ - struct msm_drm_private *priv = encoder->dev->dev_private; - return to_mdp4_kms(priv->kms); -} - -#ifdef CONFIG_MSM_BUS_SCALING -#include <mach/board.h> -/* not ironically named at all.. no, really.. */ -static void bs_init(struct mdp4_dtv_encoder *mdp4_dtv_encoder) -{ - struct drm_device *dev = mdp4_dtv_encoder->base.dev; - struct lcdc_platform_data *dtv_pdata = mdp4_find_pdata("dtv.0"); - - if (!dtv_pdata) { - dev_err(dev->dev, "could not find dtv pdata\n"); - return; - } - - if (dtv_pdata->bus_scale_table) { - mdp4_dtv_encoder->bsc = msm_bus_scale_register_client( - dtv_pdata->bus_scale_table); - DBG("bus scale client: %08x", mdp4_dtv_encoder->bsc); - DBG("lcdc_power_save: %p", dtv_pdata->lcdc_power_save); - if (dtv_pdata->lcdc_power_save) - dtv_pdata->lcdc_power_save(1); - } -} - -static void bs_fini(struct mdp4_dtv_encoder *mdp4_dtv_encoder) -{ - if (mdp4_dtv_encoder->bsc) { - msm_bus_scale_unregister_client(mdp4_dtv_encoder->bsc); - mdp4_dtv_encoder->bsc = 0; - } -} - -static void bs_set(struct mdp4_dtv_encoder *mdp4_dtv_encoder, int idx) -{ - if (mdp4_dtv_encoder->bsc) { - DBG("set bus scaling: %d", idx); - msm_bus_scale_client_update_request(mdp4_dtv_encoder->bsc, idx); - } -} -#else -static void bs_init(struct mdp4_dtv_encoder *mdp4_dtv_encoder) {} -static void bs_fini(struct mdp4_dtv_encoder *mdp4_dtv_encoder) {} -static void bs_set(struct mdp4_dtv_encoder *mdp4_dtv_encoder, int idx) {} -#endif - -static void mdp4_dtv_encoder_destroy(struct drm_encoder *encoder) -{ - struct mdp4_dtv_encoder *mdp4_dtv_encoder = to_mdp4_dtv_encoder(encoder); - bs_fini(mdp4_dtv_encoder); - drm_encoder_cleanup(encoder); - kfree(mdp4_dtv_encoder); -} - -static const struct drm_encoder_funcs mdp4_dtv_encoder_funcs = { - .destroy = mdp4_dtv_encoder_destroy, -}; - -static void mdp4_dtv_encoder_dpms(struct drm_encoder *encoder, int mode) -{ - struct drm_device *dev = encoder->dev; - struct mdp4_dtv_encoder *mdp4_dtv_encoder = to_mdp4_dtv_encoder(encoder); - struct mdp4_kms *mdp4_kms = get_kms(encoder); - bool enabled = (mode == DRM_MODE_DPMS_ON); - - DBG("mode=%d", mode); - - if (enabled == mdp4_dtv_encoder->enabled) - return; - - if (enabled) { - unsigned long pc = mdp4_dtv_encoder->pixclock; - int ret; - - bs_set(mdp4_dtv_encoder, 1); - - DBG("setting src_clk=%lu", pc); - - ret = clk_set_rate(mdp4_dtv_encoder->src_clk, pc); - if (ret) - dev_err(dev->dev, "failed to set src_clk to %lu: %d\n", pc, ret); - clk_prepare_enable(mdp4_dtv_encoder->src_clk); - ret = clk_prepare_enable(mdp4_dtv_encoder->hdmi_clk); - if (ret) - dev_err(dev->dev, "failed to enable hdmi_clk: %d\n", ret); - ret = clk_prepare_enable(mdp4_dtv_encoder->mdp_clk); - if (ret) - dev_err(dev->dev, "failed to enabled mdp_clk: %d\n", ret); - - mdp4_write(mdp4_kms, REG_MDP4_DTV_ENABLE, 1); - } else { - mdp4_write(mdp4_kms, REG_MDP4_DTV_ENABLE, 0); - - /* - * Wait for a vsync so we know the ENABLE=0 latched before - * the (connector) source of the vsync's gets disabled, - * otherwise we end up in a funny state if we re-enable - * before the disable latches, which results that some of - * the settings changes for the new modeset (like new - * scanout buffer) don't latch properly.. - */ - mdp4_irq_wait(mdp4_kms, MDP4_IRQ_EXTERNAL_VSYNC); - - clk_disable_unprepare(mdp4_dtv_encoder->src_clk); - clk_disable_unprepare(mdp4_dtv_encoder->hdmi_clk); - clk_disable_unprepare(mdp4_dtv_encoder->mdp_clk); - - bs_set(mdp4_dtv_encoder, 0); - } - - mdp4_dtv_encoder->enabled = enabled; -} - -static bool mdp4_dtv_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - -static void mdp4_dtv_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - struct mdp4_dtv_encoder *mdp4_dtv_encoder = to_mdp4_dtv_encoder(encoder); - struct mdp4_kms *mdp4_kms = get_kms(encoder); - uint32_t dtv_hsync_skew, vsync_period, vsync_len, ctrl_pol; - uint32_t display_v_start, display_v_end; - uint32_t hsync_start_x, hsync_end_x; - - mode = adjusted_mode; - - DBG("set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x", - mode->base.id, mode->name, - mode->vrefresh, mode->clock, - mode->hdisplay, mode->hsync_start, - mode->hsync_end, mode->htotal, - mode->vdisplay, mode->vsync_start, - mode->vsync_end, mode->vtotal, - mode->type, mode->flags); - - mdp4_dtv_encoder->pixclock = mode->clock * 1000; - - DBG("pixclock=%lu", mdp4_dtv_encoder->pixclock); - - ctrl_pol = 0; - if (mode->flags & DRM_MODE_FLAG_NHSYNC) - ctrl_pol |= MDP4_DTV_CTRL_POLARITY_HSYNC_LOW; - if (mode->flags & DRM_MODE_FLAG_NVSYNC) - ctrl_pol |= MDP4_DTV_CTRL_POLARITY_VSYNC_LOW; - /* probably need to get DATA_EN polarity from panel.. */ - - dtv_hsync_skew = 0; /* get this from panel? */ - - hsync_start_x = (mode->htotal - mode->hsync_start); - hsync_end_x = mode->htotal - (mode->hsync_start - mode->hdisplay) - 1; - - vsync_period = mode->vtotal * mode->htotal; - vsync_len = (mode->vsync_end - mode->vsync_start) * mode->htotal; - display_v_start = (mode->vtotal - mode->vsync_start) * mode->htotal + dtv_hsync_skew; - display_v_end = vsync_period - ((mode->vsync_start - mode->vdisplay) * mode->htotal) + dtv_hsync_skew - 1; - - mdp4_write(mdp4_kms, REG_MDP4_DTV_HSYNC_CTRL, - MDP4_DTV_HSYNC_CTRL_PULSEW(mode->hsync_end - mode->hsync_start) | - MDP4_DTV_HSYNC_CTRL_PERIOD(mode->htotal)); - mdp4_write(mdp4_kms, REG_MDP4_DTV_VSYNC_PERIOD, vsync_period); - mdp4_write(mdp4_kms, REG_MDP4_DTV_VSYNC_LEN, vsync_len); - mdp4_write(mdp4_kms, REG_MDP4_DTV_DISPLAY_HCTRL, - MDP4_DTV_DISPLAY_HCTRL_START(hsync_start_x) | - MDP4_DTV_DISPLAY_HCTRL_END(hsync_end_x)); - mdp4_write(mdp4_kms, REG_MDP4_DTV_DISPLAY_VSTART, display_v_start); - mdp4_write(mdp4_kms, REG_MDP4_DTV_DISPLAY_VEND, display_v_end); - mdp4_write(mdp4_kms, REG_MDP4_DTV_BORDER_CLR, 0); - mdp4_write(mdp4_kms, REG_MDP4_DTV_UNDERFLOW_CLR, - MDP4_DTV_UNDERFLOW_CLR_ENABLE_RECOVERY | - MDP4_DTV_UNDERFLOW_CLR_COLOR(0xff)); - mdp4_write(mdp4_kms, REG_MDP4_DTV_HSYNC_SKEW, dtv_hsync_skew); - mdp4_write(mdp4_kms, REG_MDP4_DTV_CTRL_POLARITY, ctrl_pol); - mdp4_write(mdp4_kms, REG_MDP4_DTV_ACTIVE_HCTL, - MDP4_DTV_ACTIVE_HCTL_START(0) | - MDP4_DTV_ACTIVE_HCTL_END(0)); - mdp4_write(mdp4_kms, REG_MDP4_DTV_ACTIVE_VSTART, 0); - mdp4_write(mdp4_kms, REG_MDP4_DTV_ACTIVE_VEND, 0); -} - -static void mdp4_dtv_encoder_prepare(struct drm_encoder *encoder) -{ - mdp4_dtv_encoder_dpms(encoder, DRM_MODE_DPMS_OFF); -} - -static void mdp4_dtv_encoder_commit(struct drm_encoder *encoder) -{ - mdp4_crtc_set_config(encoder->crtc, - MDP4_DMA_CONFIG_R_BPC(BPC8) | - MDP4_DMA_CONFIG_G_BPC(BPC8) | - MDP4_DMA_CONFIG_B_BPC(BPC8) | - MDP4_DMA_CONFIG_PACK(0x21)); - mdp4_crtc_set_intf(encoder->crtc, INTF_LCDC_DTV); - mdp4_dtv_encoder_dpms(encoder, DRM_MODE_DPMS_ON); -} - -static const struct drm_encoder_helper_funcs mdp4_dtv_encoder_helper_funcs = { - .dpms = mdp4_dtv_encoder_dpms, - .mode_fixup = mdp4_dtv_encoder_mode_fixup, - .mode_set = mdp4_dtv_encoder_mode_set, - .prepare = mdp4_dtv_encoder_prepare, - .commit = mdp4_dtv_encoder_commit, -}; - -long mdp4_dtv_round_pixclk(struct drm_encoder *encoder, unsigned long rate) -{ - struct mdp4_dtv_encoder *mdp4_dtv_encoder = to_mdp4_dtv_encoder(encoder); - return clk_round_rate(mdp4_dtv_encoder->src_clk, rate); -} - -/* initialize encoder */ -struct drm_encoder *mdp4_dtv_encoder_init(struct drm_device *dev) -{ - struct drm_encoder *encoder = NULL; - struct mdp4_dtv_encoder *mdp4_dtv_encoder; - int ret; - - mdp4_dtv_encoder = kzalloc(sizeof(*mdp4_dtv_encoder), GFP_KERNEL); - if (!mdp4_dtv_encoder) { - ret = -ENOMEM; - goto fail; - } - - encoder = &mdp4_dtv_encoder->base; - - drm_encoder_init(dev, encoder, &mdp4_dtv_encoder_funcs, - DRM_MODE_ENCODER_TMDS); - drm_encoder_helper_add(encoder, &mdp4_dtv_encoder_helper_funcs); - - mdp4_dtv_encoder->src_clk = devm_clk_get(dev->dev, "src_clk"); - if (IS_ERR(mdp4_dtv_encoder->src_clk)) { - dev_err(dev->dev, "failed to get src_clk\n"); - ret = PTR_ERR(mdp4_dtv_encoder->src_clk); - goto fail; - } - - mdp4_dtv_encoder->hdmi_clk = devm_clk_get(dev->dev, "hdmi_clk"); - if (IS_ERR(mdp4_dtv_encoder->hdmi_clk)) { - dev_err(dev->dev, "failed to get hdmi_clk\n"); - ret = PTR_ERR(mdp4_dtv_encoder->hdmi_clk); - goto fail; - } - - mdp4_dtv_encoder->mdp_clk = devm_clk_get(dev->dev, "mdp_clk"); - if (IS_ERR(mdp4_dtv_encoder->mdp_clk)) { - dev_err(dev->dev, "failed to get mdp_clk\n"); - ret = PTR_ERR(mdp4_dtv_encoder->mdp_clk); - goto fail; - } - - bs_init(mdp4_dtv_encoder); - - return encoder; - -fail: - if (encoder) - mdp4_dtv_encoder_destroy(encoder); - - return ERR_PTR(ret); -} |