Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Laurent Pinchart | 1093 | 90.86% | 3 | 15.79% |
Thomas Zimmermann | 40 | 3.33% | 2 | 10.53% |
Daniel Vetter | 20 | 1.66% | 6 | 31.58% |
Thierry Reding | 17 | 1.41% | 1 | 5.26% |
Paul Cercueil | 9 | 0.75% | 1 | 5.26% |
Yue haibing | 9 | 0.75% | 1 | 5.26% |
Sam Ravnborg | 4 | 0.33% | 1 | 5.26% |
Javier Martinez Canillas | 4 | 0.33% | 1 | 5.26% |
Danilo Krummrich | 3 | 0.25% | 1 | 5.26% |
Kuninori Morimoto | 2 | 0.17% | 1 | 5.26% |
caihuoqing | 2 | 0.17% | 1 | 5.26% |
Total | 1203 | 19 |
// SPDX-License-Identifier: GPL-2.0+ /* * shmob_drm_drv.c -- SH Mobile DRM driver * * Copyright (C) 2012 Renesas Electronics Corporation * * Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ #include <linux/clk.h> #include <linux/io.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/slab.h> #include <drm/drm_drv.h> #include <drm/drm_gem_dma_helper.h> #include <drm/drm_module.h> #include <drm/drm_probe_helper.h> #include <drm/drm_vblank.h> #include "shmob_drm_drv.h" #include "shmob_drm_kms.h" #include "shmob_drm_plane.h" #include "shmob_drm_regs.h" /* ----------------------------------------------------------------------------- * Hardware initialization */ static int shmob_drm_init_interface(struct shmob_drm_device *sdev) { static const u32 ldmt1r[] = { [SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8, [SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9, [SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A, [SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B, [SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16, [SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18, [SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24, [SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR, [SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A, [SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B, [SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C, [SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D, [SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9, [SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12, [SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A, [SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B, [SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C, [SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18, [SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24, }; if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) { dev_err(sdev->dev, "invalid interface type %u\n", sdev->pdata->iface.interface); return -EINVAL; } sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface]; return 0; } static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev, enum shmob_drm_clk_source clksrc) { struct clk *clk; char *clkname; switch (clksrc) { case SHMOB_DRM_CLK_BUS: clkname = "bus_clk"; sdev->lddckr = LDDCKR_ICKSEL_BUS; break; case SHMOB_DRM_CLK_PERIPHERAL: clkname = "peripheral_clk"; sdev->lddckr = LDDCKR_ICKSEL_MIPI; break; case SHMOB_DRM_CLK_EXTERNAL: clkname = NULL; sdev->lddckr = LDDCKR_ICKSEL_HDMI; break; default: return -EINVAL; } clk = devm_clk_get(sdev->dev, clkname); if (IS_ERR(clk)) { dev_err(sdev->dev, "cannot get dot clock %s\n", clkname); return PTR_ERR(clk); } sdev->clock = clk; return 0; } /* ----------------------------------------------------------------------------- * DRM operations */ static irqreturn_t shmob_drm_irq(int irq, void *arg) { struct drm_device *dev = arg; struct shmob_drm_device *sdev = dev->dev_private; unsigned long flags; u32 status; /* Acknowledge interrupts. Putting interrupt enable and interrupt flag * bits in the same register is really brain-dead design and requires * taking a spinlock. */ spin_lock_irqsave(&sdev->irq_lock, flags); status = lcdc_read(sdev, LDINTR); lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK); spin_unlock_irqrestore(&sdev->irq_lock, flags); if (status & LDINTR_VES) { drm_handle_vblank(dev, 0); shmob_drm_crtc_finish_page_flip(&sdev->crtc); } return IRQ_HANDLED; } DEFINE_DRM_GEM_DMA_FOPS(shmob_drm_fops); static const struct drm_driver shmob_drm_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET, DRM_GEM_DMA_DRIVER_OPS, .fops = &shmob_drm_fops, .name = "shmob-drm", .desc = "Renesas SH Mobile DRM", .date = "20120424", .major = 1, .minor = 0, }; /* ----------------------------------------------------------------------------- * Power management */ static int shmob_drm_pm_suspend(struct device *dev) { struct shmob_drm_device *sdev = dev_get_drvdata(dev); drm_kms_helper_poll_disable(sdev->ddev); shmob_drm_crtc_suspend(&sdev->crtc); return 0; } static int shmob_drm_pm_resume(struct device *dev) { struct shmob_drm_device *sdev = dev_get_drvdata(dev); drm_modeset_lock_all(sdev->ddev); shmob_drm_crtc_resume(&sdev->crtc); drm_modeset_unlock_all(sdev->ddev); drm_kms_helper_poll_enable(sdev->ddev); return 0; } static DEFINE_SIMPLE_DEV_PM_OPS(shmob_drm_pm_ops, shmob_drm_pm_suspend, shmob_drm_pm_resume); /* ----------------------------------------------------------------------------- * Platform driver */ static int shmob_drm_remove(struct platform_device *pdev) { struct shmob_drm_device *sdev = platform_get_drvdata(pdev); struct drm_device *ddev = sdev->ddev; drm_dev_unregister(ddev); drm_kms_helper_poll_fini(ddev); free_irq(sdev->irq, ddev); drm_dev_put(ddev); return 0; } static int shmob_drm_probe(struct platform_device *pdev) { struct shmob_drm_platform_data *pdata = pdev->dev.platform_data; struct shmob_drm_device *sdev; struct drm_device *ddev; unsigned int i; int ret; if (pdata == NULL) { dev_err(&pdev->dev, "no platform data\n"); return -EINVAL; } /* * Allocate and initialize the driver private data, I/O resources and * clocks. */ sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL); if (sdev == NULL) return -ENOMEM; sdev->dev = &pdev->dev; sdev->pdata = pdata; spin_lock_init(&sdev->irq_lock); platform_set_drvdata(pdev, sdev); sdev->mmio = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(sdev->mmio)) return PTR_ERR(sdev->mmio); ret = shmob_drm_setup_clocks(sdev, pdata->clk_source); if (ret < 0) return ret; ret = shmob_drm_init_interface(sdev); if (ret < 0) return ret; /* Allocate and initialize the DRM device. */ ddev = drm_dev_alloc(&shmob_drm_driver, &pdev->dev); if (IS_ERR(ddev)) return PTR_ERR(ddev); sdev->ddev = ddev; ddev->dev_private = sdev; ret = shmob_drm_modeset_init(sdev); if (ret < 0) { dev_err(&pdev->dev, "failed to initialize mode setting\n"); goto err_free_drm_dev; } for (i = 0; i < 4; ++i) { ret = shmob_drm_plane_create(sdev, i); if (ret < 0) { dev_err(&pdev->dev, "failed to create plane %u\n", i); goto err_modeset_cleanup; } } ret = drm_vblank_init(ddev, 1); if (ret < 0) { dev_err(&pdev->dev, "failed to initialize vblank\n"); goto err_modeset_cleanup; } ret = platform_get_irq(pdev, 0); if (ret < 0) goto err_modeset_cleanup; sdev->irq = ret; ret = request_irq(sdev->irq, shmob_drm_irq, 0, ddev->driver->name, ddev); if (ret < 0) { dev_err(&pdev->dev, "failed to install IRQ handler\n"); goto err_modeset_cleanup; } /* * Register the DRM device with the core and the connectors with * sysfs. */ ret = drm_dev_register(ddev, 0); if (ret < 0) goto err_irq_uninstall; return 0; err_irq_uninstall: free_irq(sdev->irq, ddev); err_modeset_cleanup: drm_kms_helper_poll_fini(ddev); err_free_drm_dev: drm_dev_put(ddev); return ret; } static struct platform_driver shmob_drm_platform_driver = { .probe = shmob_drm_probe, .remove = shmob_drm_remove, .driver = { .name = "shmob-drm", .pm = pm_sleep_ptr(&shmob_drm_pm_ops), }, }; drm_module_platform_driver(shmob_drm_platform_driver); MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>"); MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver"); MODULE_LICENSE("GPL");
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