X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Frcar-du%2Frcar_du_drv.c;h=0a9f1bb88337f614a24468970a09b6024415d359;hb=1dda8d02acbba80444a98e71d9d419232c109e94;hp=dc0fe09b2ba10d8b39f51e29a9340818f8c253ff;hpb=55c62960b0a7f378a9ab5237a2f9cf02dfe95a36;p=karo-tx-linux.git diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index dc0fe09b2ba1..0a9f1bb88337 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -21,6 +21,7 @@ #include #include +#include #include #include "rcar_du_crtc.h" @@ -28,75 +29,22 @@ #include "rcar_du_kms.h" #include "rcar_du_regs.h" -/* ----------------------------------------------------------------------------- - * Core device operations - */ - -/* - * rcar_du_get - Acquire a reference to the DU - * - * Acquiring a reference enables the device clock and setup core registers. A - * reference must be held before accessing any hardware registers. - * - * This function must be called with the DRM mode_config lock held. - * - * Return 0 in case of success or a negative error code otherwise. - */ -int rcar_du_get(struct rcar_du_device *rcdu) -{ - int ret; - - if (rcdu->use_count) - goto done; - - /* Enable clocks before accessing the hardware. */ - ret = clk_prepare_enable(rcdu->clock); - if (ret < 0) - return ret; - - /* Enable extended features */ - rcar_du_write(rcdu, DEFR, DEFR_CODE | DEFR_DEFE); - rcar_du_write(rcdu, DEFR2, DEFR2_CODE | DEFR2_DEFE2G); - rcar_du_write(rcdu, DEFR3, DEFR3_CODE | DEFR3_DEFE3); - rcar_du_write(rcdu, DEFR4, DEFR4_CODE); - rcar_du_write(rcdu, DEFR5, DEFR5_CODE | DEFR5_DEFE5); - - /* Use DS1PR and DS2PR to configure planes priorities and connects the - * superposition 0 to DU0 pins. DU1 pins will be configured dynamically. - */ - rcar_du_write(rcdu, DORCR, DORCR_PG1D_DS1 | DORCR_DPRS); - -done: - rcdu->use_count++; - return 0; -} - -/* - * rcar_du_put - Release a reference to the DU - * - * Releasing the last reference disables the device clock. - * - * This function must be called with the DRM mode_config lock held. - */ -void rcar_du_put(struct rcar_du_device *rcdu) -{ - if (--rcdu->use_count) - return; - - clk_disable_unprepare(rcdu->clock); -} - /* ----------------------------------------------------------------------------- * DRM operations */ static int rcar_du_unload(struct drm_device *dev) { + struct rcar_du_device *rcdu = dev->dev_private; + + if (rcdu->fbdev) + drm_fbdev_cma_fini(rcdu->fbdev); + drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); drm_vblank_cleanup(dev); - drm_irq_uninstall(dev); + dev->irq_enabled = 0; dev->dev_private = NULL; return 0; @@ -107,7 +55,6 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) struct platform_device *pdev = dev->platformdev; struct rcar_du_platform_data *pdata = pdev->dev.platform_data; struct rcar_du_device *rcdu; - struct resource *ioarea; struct resource *mem; int ret; @@ -124,35 +71,15 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) rcdu->dev = &pdev->dev; rcdu->pdata = pdata; + rcdu->info = (struct rcar_du_device_info *)pdev->id_entry->driver_data; rcdu->ddev = dev; dev->dev_private = rcdu; - /* I/O resources and clocks */ + /* I/O resources */ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (mem == NULL) { - dev_err(&pdev->dev, "failed to get memory resource\n"); - return -EINVAL; - } - - ioarea = devm_request_mem_region(&pdev->dev, mem->start, - resource_size(mem), pdev->name); - if (ioarea == NULL) { - dev_err(&pdev->dev, "failed to request memory region\n"); - return -EBUSY; - } - - rcdu->mmio = devm_ioremap_nocache(&pdev->dev, ioarea->start, - resource_size(ioarea)); - if (rcdu->mmio == NULL) { - dev_err(&pdev->dev, "failed to remap memory resource\n"); - return -ENOMEM; - } - - rcdu->clock = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(rcdu->clock)) { - dev_err(&pdev->dev, "failed to get clock\n"); - return -ENOENT; - } + rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem); + if (IS_ERR(rcdu->mmio)) + return PTR_ERR(rcdu->mmio); /* DRM/KMS objects */ ret = rcar_du_modeset_init(rcdu); @@ -161,18 +88,14 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) goto done; } - /* IRQ and vblank handling */ + /* vblank handling */ ret = drm_vblank_init(dev, (1 << rcdu->num_crtcs) - 1); if (ret < 0) { dev_err(&pdev->dev, "failed to initialize vblank\n"); goto done; } - ret = drm_irq_install(dev); - if (ret < 0) { - dev_err(&pdev->dev, "failed to install IRQ handler\n"); - goto done; - } + dev->irq_enabled = 1; platform_set_drvdata(pdev, rcdu); @@ -188,20 +111,15 @@ static void rcar_du_preclose(struct drm_device *dev, struct drm_file *file) struct rcar_du_device *rcdu = dev->dev_private; unsigned int i; - for (i = 0; i < ARRAY_SIZE(rcdu->crtcs); ++i) + for (i = 0; i < rcdu->num_crtcs; ++i) rcar_du_crtc_cancel_page_flip(&rcdu->crtcs[i], file); } -static irqreturn_t rcar_du_irq(int irq, void *arg) +static void rcar_du_lastclose(struct drm_device *dev) { - struct drm_device *dev = arg; struct rcar_du_device *rcdu = dev->dev_private; - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(rcdu->crtcs); ++i) - rcar_du_crtc_irq(&rcdu->crtcs[i]); - return IRQ_HANDLED; + drm_fbdev_cma_restore_mode(rcdu->fbdev); } static int rcar_du_enable_vblank(struct drm_device *dev, int crtc) @@ -236,12 +154,11 @@ static const struct file_operations rcar_du_fops = { }; static struct drm_driver rcar_du_driver = { - .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET - | DRIVER_PRIME, + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME, .load = rcar_du_load, .unload = rcar_du_unload, .preclose = rcar_du_preclose, - .irq_handler = rcar_du_irq, + .lastclose = rcar_du_lastclose, .get_vblank_counter = drm_vblank_count, .enable_vblank = rcar_du_enable_vblank, .disable_vblank = rcar_du_disable_vblank, @@ -258,7 +175,7 @@ static struct drm_driver rcar_du_driver = { .gem_prime_mmap = drm_gem_cma_prime_mmap, .dumb_create = rcar_du_dumb_create, .dumb_map_offset = drm_gem_cma_dumb_map_offset, - .dumb_destroy = drm_gem_cma_dumb_destroy, + .dumb_destroy = drm_gem_dumb_destroy, .fops = &rcar_du_fops, .name = "rcar-du", .desc = "Renesas R-Car Display Unit", @@ -313,6 +230,57 @@ static int rcar_du_remove(struct platform_device *pdev) return 0; } +static const struct rcar_du_device_info rcar_du_r8a7779_info = { + .features = 0, + .num_crtcs = 2, + .routes = { + /* R8A7779 has two RGB outputs and one (currently unsupported) + * TCON output. + */ + [RCAR_DU_OUTPUT_DPAD0] = { + .possible_crtcs = BIT(0), + .encoder_type = DRM_MODE_ENCODER_NONE, + }, + [RCAR_DU_OUTPUT_DPAD1] = { + .possible_crtcs = BIT(1) | BIT(0), + .encoder_type = DRM_MODE_ENCODER_NONE, + }, + }, + .num_lvds = 0, +}; + +static const struct rcar_du_device_info rcar_du_r8a7790_info = { + .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B + | RCAR_DU_FEATURE_DEFR8, + .num_crtcs = 3, + .routes = { + /* R8A7790 has one RGB output, two LVDS outputs and one + * (currently unsupported) TCON output. + */ + [RCAR_DU_OUTPUT_DPAD0] = { + .possible_crtcs = BIT(2) | BIT(1) | BIT(0), + .encoder_type = DRM_MODE_ENCODER_NONE, + }, + [RCAR_DU_OUTPUT_LVDS0] = { + .possible_crtcs = BIT(0), + .encoder_type = DRM_MODE_ENCODER_LVDS, + }, + [RCAR_DU_OUTPUT_LVDS1] = { + .possible_crtcs = BIT(2) | BIT(1), + .encoder_type = DRM_MODE_ENCODER_LVDS, + }, + }, + .num_lvds = 2, +}; + +static const struct platform_device_id rcar_du_id_table[] = { + { "rcar-du-r8a7779", (kernel_ulong_t)&rcar_du_r8a7779_info }, + { "rcar-du-r8a7790", (kernel_ulong_t)&rcar_du_r8a7790_info }, + { } +}; + +MODULE_DEVICE_TABLE(platform, rcar_du_id_table); + static struct platform_driver rcar_du_platform_driver = { .probe = rcar_du_probe, .remove = rcar_du_remove, @@ -321,6 +289,7 @@ static struct platform_driver rcar_du_platform_driver = { .name = "rcar-du", .pm = &rcar_du_pm_ops, }, + .id_table = rcar_du_id_table, }; module_platform_driver(rcar_du_platform_driver);