diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp4/mdp4_kms.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp4/mdp4_kms.c | 391 |
1 files changed, 0 insertions, 391 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp4/mdp4_kms.c deleted file mode 100644 index 2e2ae16f334e..000000000000 --- a/drivers/gpu/drm/msm/mdp4/mdp4_kms.c +++ /dev/null @@ -1,391 +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 "msm_drv.h" -#include "msm_mmu.h" -#include "mdp4_kms.h" - -static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev); - -static int mdp4_hw_init(struct msm_kms *kms) -{ - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - struct drm_device *dev = mdp4_kms->dev; - uint32_t version, major, minor, dmap_cfg, vg_cfg; - unsigned long clk; - int ret = 0; - - pm_runtime_get_sync(dev->dev); - - mdp4_enable(mdp4_kms); - version = mdp4_read(mdp4_kms, REG_MDP4_VERSION); - mdp4_disable(mdp4_kms); - - major = FIELD(version, MDP4_VERSION_MAJOR); - minor = FIELD(version, MDP4_VERSION_MINOR); - - DBG("found MDP version v%d.%d", major, minor); - - if (major != 4) { - dev_err(dev->dev, "unexpected MDP version: v%d.%d\n", - major, minor); - ret = -ENXIO; - goto out; - } - - mdp4_kms->rev = minor; - - if (mdp4_kms->dsi_pll_vdda) { - if ((mdp4_kms->rev == 2) || (mdp4_kms->rev == 4)) { - ret = regulator_set_voltage(mdp4_kms->dsi_pll_vdda, - 1200000, 1200000); - if (ret) { - dev_err(dev->dev, - "failed to set dsi_pll_vdda voltage: %d\n", ret); - goto out; - } - } - } - - if (mdp4_kms->dsi_pll_vddio) { - if (mdp4_kms->rev == 2) { - ret = regulator_set_voltage(mdp4_kms->dsi_pll_vddio, - 1800000, 1800000); - if (ret) { - dev_err(dev->dev, - "failed to set dsi_pll_vddio voltage: %d\n", ret); - goto out; - } - } - } - - if (mdp4_kms->rev > 1) { - mdp4_write(mdp4_kms, REG_MDP4_CS_CONTROLLER0, 0x0707ffff); - mdp4_write(mdp4_kms, REG_MDP4_CS_CONTROLLER1, 0x03073f3f); - } - - mdp4_write(mdp4_kms, REG_MDP4_PORTMAP_MODE, 0x3); - - /* max read pending cmd config, 3 pending requests: */ - mdp4_write(mdp4_kms, REG_MDP4_READ_CNFG, 0x02222); - - clk = clk_get_rate(mdp4_kms->clk); - - if ((mdp4_kms->rev >= 1) || (clk >= 90000000)) { - dmap_cfg = 0x47; /* 16 bytes-burst x 8 req */ - vg_cfg = 0x47; /* 16 bytes-burs x 8 req */ - } else { - dmap_cfg = 0x27; /* 8 bytes-burst x 8 req */ - vg_cfg = 0x43; /* 16 bytes-burst x 4 req */ - } - - DBG("fetch config: dmap=%02x, vg=%02x", dmap_cfg, vg_cfg); - - mdp4_write(mdp4_kms, REG_MDP4_DMA_FETCH_CONFIG(DMA_P), dmap_cfg); - mdp4_write(mdp4_kms, REG_MDP4_DMA_FETCH_CONFIG(DMA_E), dmap_cfg); - - mdp4_write(mdp4_kms, REG_MDP4_PIPE_FETCH_CONFIG(VG1), vg_cfg); - mdp4_write(mdp4_kms, REG_MDP4_PIPE_FETCH_CONFIG(VG2), vg_cfg); - mdp4_write(mdp4_kms, REG_MDP4_PIPE_FETCH_CONFIG(RGB1), vg_cfg); - mdp4_write(mdp4_kms, REG_MDP4_PIPE_FETCH_CONFIG(RGB2), vg_cfg); - - if (mdp4_kms->rev >= 2) - mdp4_write(mdp4_kms, REG_MDP4_LAYERMIXER_IN_CFG_UPDATE_METHOD, 1); - - /* disable CSC matrix / YUV by default: */ - mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(VG1), 0); - mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(VG2), 0); - mdp4_write(mdp4_kms, REG_MDP4_DMA_P_OP_MODE, 0); - mdp4_write(mdp4_kms, REG_MDP4_DMA_S_OP_MODE, 0); - mdp4_write(mdp4_kms, REG_MDP4_OVLP_CSC_CONFIG(1), 0); - mdp4_write(mdp4_kms, REG_MDP4_OVLP_CSC_CONFIG(2), 0); - - if (mdp4_kms->rev > 1) - mdp4_write(mdp4_kms, REG_MDP4_RESET_STATUS, 1); - -out: - pm_runtime_put_sync(dev->dev); - - return ret; -} - -static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate, - struct drm_encoder *encoder) -{ - /* if we had >1 encoder, we'd need something more clever: */ - return mdp4_dtv_round_pixclk(encoder, rate); -} - -static void mdp4_preclose(struct msm_kms *kms, struct drm_file *file) -{ - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - struct msm_drm_private *priv = mdp4_kms->dev->dev_private; - unsigned i; - - for (i = 0; i < priv->num_crtcs; i++) - mdp4_crtc_cancel_pending_flip(priv->crtcs[i], file); -} - -static void mdp4_destroy(struct msm_kms *kms) -{ - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - kfree(mdp4_kms); -} - -static const struct msm_kms_funcs kms_funcs = { - .hw_init = mdp4_hw_init, - .irq_preinstall = mdp4_irq_preinstall, - .irq_postinstall = mdp4_irq_postinstall, - .irq_uninstall = mdp4_irq_uninstall, - .irq = mdp4_irq, - .enable_vblank = mdp4_enable_vblank, - .disable_vblank = mdp4_disable_vblank, - .get_format = mdp4_get_format, - .round_pixclk = mdp4_round_pixclk, - .preclose = mdp4_preclose, - .destroy = mdp4_destroy, -}; - -int mdp4_disable(struct mdp4_kms *mdp4_kms) -{ - DBG(""); - - clk_disable_unprepare(mdp4_kms->clk); - if (mdp4_kms->pclk) - clk_disable_unprepare(mdp4_kms->pclk); - clk_disable_unprepare(mdp4_kms->lut_clk); - - return 0; -} - -int mdp4_enable(struct mdp4_kms *mdp4_kms) -{ - DBG(""); - - clk_prepare_enable(mdp4_kms->clk); - if (mdp4_kms->pclk) - clk_prepare_enable(mdp4_kms->pclk); - clk_prepare_enable(mdp4_kms->lut_clk); - - return 0; -} - -static int modeset_init(struct mdp4_kms *mdp4_kms) -{ - struct drm_device *dev = mdp4_kms->dev; - struct msm_drm_private *priv = dev->dev_private; - struct drm_plane *plane; - struct drm_crtc *crtc; - struct drm_encoder *encoder; - int ret; - - /* - * NOTE: this is a bit simplistic until we add support - * for more than just RGB1->DMA_E->DTV->HDMI - */ - - /* construct non-private planes: */ - plane = mdp4_plane_init(dev, VG1, false); - if (IS_ERR(plane)) { - dev_err(dev->dev, "failed to construct plane for VG1\n"); - ret = PTR_ERR(plane); - goto fail; - } - priv->planes[priv->num_planes++] = plane; - - plane = mdp4_plane_init(dev, VG2, false); - if (IS_ERR(plane)) { - dev_err(dev->dev, "failed to construct plane for VG2\n"); - ret = PTR_ERR(plane); - goto fail; - } - priv->planes[priv->num_planes++] = plane; - - /* the CRTCs get constructed with a private plane: */ - plane = mdp4_plane_init(dev, RGB1, true); - if (IS_ERR(plane)) { - dev_err(dev->dev, "failed to construct plane for RGB1\n"); - ret = PTR_ERR(plane); - goto fail; - } - - crtc = mdp4_crtc_init(dev, plane, priv->num_crtcs, 1, DMA_E); - if (IS_ERR(crtc)) { - dev_err(dev->dev, "failed to construct crtc for DMA_E\n"); - ret = PTR_ERR(crtc); - goto fail; - } - priv->crtcs[priv->num_crtcs++] = crtc; - - encoder = mdp4_dtv_encoder_init(dev); - if (IS_ERR(encoder)) { - dev_err(dev->dev, "failed to construct DTV encoder\n"); - ret = PTR_ERR(encoder); - goto fail; - } - encoder->possible_crtcs = 0x1; /* DTV can be hooked to DMA_E */ - priv->encoders[priv->num_encoders++] = encoder; - - ret = hdmi_init(dev, encoder); - if (ret) { - dev_err(dev->dev, "failed to initialize HDMI\n"); - goto fail; - } - - return 0; - -fail: - return ret; -} - -static const char *iommu_ports[] = { - "mdp_port0_cb0", "mdp_port1_cb0", -}; - -struct msm_kms *mdp4_kms_init(struct drm_device *dev) -{ - struct platform_device *pdev = dev->platformdev; - struct mdp4_platform_config *config = mdp4_get_config(pdev); - struct mdp4_kms *mdp4_kms; - struct msm_kms *kms = NULL; - struct msm_mmu *mmu; - int ret; - - mdp4_kms = kzalloc(sizeof(*mdp4_kms), GFP_KERNEL); - if (!mdp4_kms) { - dev_err(dev->dev, "failed to allocate kms\n"); - ret = -ENOMEM; - goto fail; - } - - kms = &mdp4_kms->base; - kms->funcs = &kms_funcs; - - mdp4_kms->dev = dev; - - mdp4_kms->mmio = msm_ioremap(pdev, NULL, "MDP4"); - if (IS_ERR(mdp4_kms->mmio)) { - ret = PTR_ERR(mdp4_kms->mmio); - goto fail; - } - - mdp4_kms->dsi_pll_vdda = devm_regulator_get(&pdev->dev, "dsi_pll_vdda"); - if (IS_ERR(mdp4_kms->dsi_pll_vdda)) - mdp4_kms->dsi_pll_vdda = NULL; - - mdp4_kms->dsi_pll_vddio = devm_regulator_get(&pdev->dev, "dsi_pll_vddio"); - if (IS_ERR(mdp4_kms->dsi_pll_vddio)) - mdp4_kms->dsi_pll_vddio = NULL; - - mdp4_kms->vdd = devm_regulator_get(&pdev->dev, "vdd"); - if (IS_ERR(mdp4_kms->vdd)) - mdp4_kms->vdd = NULL; - - if (mdp4_kms->vdd) { - ret = regulator_enable(mdp4_kms->vdd); - if (ret) { - dev_err(dev->dev, "failed to enable regulator vdd: %d\n", ret); - goto fail; - } - } - - mdp4_kms->clk = devm_clk_get(&pdev->dev, "core_clk"); - if (IS_ERR(mdp4_kms->clk)) { - dev_err(dev->dev, "failed to get core_clk\n"); - ret = PTR_ERR(mdp4_kms->clk); - goto fail; - } - - mdp4_kms->pclk = devm_clk_get(&pdev->dev, "iface_clk"); - if (IS_ERR(mdp4_kms->pclk)) - mdp4_kms->pclk = NULL; - - // XXX if (rev >= MDP_REV_42) { ??? - mdp4_kms->lut_clk = devm_clk_get(&pdev->dev, "lut_clk"); - if (IS_ERR(mdp4_kms->lut_clk)) { - dev_err(dev->dev, "failed to get lut_clk\n"); - ret = PTR_ERR(mdp4_kms->lut_clk); - goto fail; - } - - clk_set_rate(mdp4_kms->clk, config->max_clk); - clk_set_rate(mdp4_kms->lut_clk, config->max_clk); - - /* make sure things are off before attaching iommu (bootloader could - * have left things on, in which case we'll start getting faults if - * we don't disable): - */ - mdp4_enable(mdp4_kms); - mdp4_write(mdp4_kms, REG_MDP4_DTV_ENABLE, 0); - mdp4_write(mdp4_kms, REG_MDP4_LCDC_ENABLE, 0); - mdp4_write(mdp4_kms, REG_MDP4_DSI_ENABLE, 0); - mdp4_disable(mdp4_kms); - mdelay(16); - - if (config->iommu) { - mmu = msm_iommu_new(dev, config->iommu); - if (IS_ERR(mmu)) { - ret = PTR_ERR(mmu); - goto fail; - } - ret = mmu->funcs->attach(mmu, iommu_ports, - ARRAY_SIZE(iommu_ports)); - if (ret) - goto fail; - } else { - dev_info(dev->dev, "no iommu, fallback to phys " - "contig buffers for scanout\n"); - mmu = NULL; - } - - mdp4_kms->id = msm_register_mmu(dev, mmu); - if (mdp4_kms->id < 0) { - ret = mdp4_kms->id; - dev_err(dev->dev, "failed to register mdp4 iommu: %d\n", ret); - goto fail; - } - - ret = modeset_init(mdp4_kms); - if (ret) { - dev_err(dev->dev, "modeset_init failed: %d\n", ret); - goto fail; - } - - return kms; - -fail: - if (kms) - mdp4_destroy(kms); - return ERR_PTR(ret); -} - -static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev) -{ - static struct mdp4_platform_config config = {}; -#ifdef CONFIG_OF - /* TODO */ -#else - if (cpu_is_apq8064()) - config.max_clk = 266667000; - else - config.max_clk = 200000000; - - config.iommu = msm_get_iommu_domain(DISPLAY_READ_DOMAIN); -#endif - return &config; -} |