diff options
Diffstat (limited to 'drivers/gpu/drm/shmobile/shmob_drm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/shmobile/shmob_drm_drv.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c deleted file mode 100644 index faacfee24763..000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c +++ /dev/null @@ -1,299 +0,0 @@ -// 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"); |