diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/mmp/hw/mmp_ctrl.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | blackbird-op-linux-f7018c21350204c4cf628462f229d44d03545254.tar.gz blackbird-op-linux-f7018c21350204c4cf628462f229d44d03545254.zip |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/mmp/hw/mmp_ctrl.c')
-rw-r--r-- | drivers/video/mmp/hw/mmp_ctrl.c | 588 |
1 files changed, 0 insertions, 588 deletions
diff --git a/drivers/video/mmp/hw/mmp_ctrl.c b/drivers/video/mmp/hw/mmp_ctrl.c deleted file mode 100644 index 8621a9f2bdcc..000000000000 --- a/drivers/video/mmp/hw/mmp_ctrl.c +++ /dev/null @@ -1,588 +0,0 @@ -/* - * linux/drivers/video/mmp/hw/mmp_ctrl.c - * Marvell MMP series Display Controller support - * - * Copyright (C) 2012 Marvell Technology Group Ltd. - * Authors: Guoqing Li <ligq@marvell.com> - * Lisa Du <cldu@marvell.com> - * Zhou Zhu <zzhu3@marvell.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * 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 <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/interrupt.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/vmalloc.h> -#include <linux/uaccess.h> -#include <linux/kthread.h> -#include <linux/io.h> - -#include "mmp_ctrl.h" - -static irqreturn_t ctrl_handle_irq(int irq, void *dev_id) -{ - struct mmphw_ctrl *ctrl = (struct mmphw_ctrl *)dev_id; - u32 isr, imask, tmp; - - isr = readl_relaxed(ctrl->reg_base + SPU_IRQ_ISR); - imask = readl_relaxed(ctrl->reg_base + SPU_IRQ_ENA); - - do { - /* clear clock only */ - tmp = readl_relaxed(ctrl->reg_base + SPU_IRQ_ISR); - if (tmp & isr) - writel_relaxed(~isr, ctrl->reg_base + SPU_IRQ_ISR); - } while ((isr = readl_relaxed(ctrl->reg_base + SPU_IRQ_ISR)) & imask); - - return IRQ_HANDLED; -} - -static u32 fmt_to_reg(struct mmp_overlay *overlay, int pix_fmt) -{ - u32 rbswap = 0, uvswap = 0, yuvswap = 0, - csc_en = 0, val = 0, - vid = overlay_is_vid(overlay); - - switch (pix_fmt) { - case PIXFMT_RGB565: - case PIXFMT_RGB1555: - case PIXFMT_RGB888PACK: - case PIXFMT_RGB888UNPACK: - case PIXFMT_RGBA888: - rbswap = 1; - break; - case PIXFMT_VYUY: - case PIXFMT_YVU422P: - case PIXFMT_YVU420P: - uvswap = 1; - break; - case PIXFMT_YUYV: - yuvswap = 1; - break; - default: - break; - } - - switch (pix_fmt) { - case PIXFMT_RGB565: - case PIXFMT_BGR565: - break; - case PIXFMT_RGB1555: - case PIXFMT_BGR1555: - val = 0x1; - break; - case PIXFMT_RGB888PACK: - case PIXFMT_BGR888PACK: - val = 0x2; - break; - case PIXFMT_RGB888UNPACK: - case PIXFMT_BGR888UNPACK: - val = 0x3; - break; - case PIXFMT_RGBA888: - case PIXFMT_BGRA888: - val = 0x4; - break; - case PIXFMT_UYVY: - case PIXFMT_VYUY: - case PIXFMT_YUYV: - val = 0x5; - csc_en = 1; - break; - case PIXFMT_YUV422P: - case PIXFMT_YVU422P: - val = 0x6; - csc_en = 1; - break; - case PIXFMT_YUV420P: - case PIXFMT_YVU420P: - val = 0x7; - csc_en = 1; - break; - default: - break; - } - - return (dma_palette(0) | dma_fmt(vid, val) | - dma_swaprb(vid, rbswap) | dma_swapuv(vid, uvswap) | - dma_swapyuv(vid, yuvswap) | dma_csc(vid, csc_en)); -} - -static void dmafetch_set_fmt(struct mmp_overlay *overlay) -{ - u32 tmp; - struct mmp_path *path = overlay->path; - tmp = readl_relaxed(ctrl_regs(path) + dma_ctrl(0, path->id)); - tmp &= ~dma_mask(overlay_is_vid(overlay)); - tmp |= fmt_to_reg(overlay, overlay->win.pix_fmt); - writel_relaxed(tmp, ctrl_regs(path) + dma_ctrl(0, path->id)); -} - -static void overlay_set_win(struct mmp_overlay *overlay, struct mmp_win *win) -{ - struct lcd_regs *regs = path_regs(overlay->path); - - /* assert win supported */ - memcpy(&overlay->win, win, sizeof(struct mmp_win)); - - mutex_lock(&overlay->access_ok); - - if (overlay_is_vid(overlay)) { - writel_relaxed(win->pitch[0], ®s->v_pitch_yc); - writel_relaxed(win->pitch[2] << 16 | - win->pitch[1], ®s->v_pitch_uv); - - writel_relaxed((win->ysrc << 16) | win->xsrc, ®s->v_size); - writel_relaxed((win->ydst << 16) | win->xdst, ®s->v_size_z); - writel_relaxed(win->ypos << 16 | win->xpos, ®s->v_start); - } else { - writel_relaxed(win->pitch[0], ®s->g_pitch); - - writel_relaxed((win->ysrc << 16) | win->xsrc, ®s->g_size); - writel_relaxed((win->ydst << 16) | win->xdst, ®s->g_size_z); - writel_relaxed(win->ypos << 16 | win->xpos, ®s->g_start); - } - - dmafetch_set_fmt(overlay); - mutex_unlock(&overlay->access_ok); -} - -static void dmafetch_onoff(struct mmp_overlay *overlay, int on) -{ - u32 mask = overlay_is_vid(overlay) ? CFG_DMA_ENA_MASK : - CFG_GRA_ENA_MASK; - u32 enable = overlay_is_vid(overlay) ? CFG_DMA_ENA(1) : CFG_GRA_ENA(1); - u32 tmp; - struct mmp_path *path = overlay->path; - - mutex_lock(&overlay->access_ok); - tmp = readl_relaxed(ctrl_regs(path) + dma_ctrl(0, path->id)); - tmp &= ~mask; - tmp |= (on ? enable : 0); - writel(tmp, ctrl_regs(path) + dma_ctrl(0, path->id)); - mutex_unlock(&overlay->access_ok); -} - -static void path_enabledisable(struct mmp_path *path, int on) -{ - u32 tmp; - mutex_lock(&path->access_ok); - tmp = readl_relaxed(ctrl_regs(path) + LCD_SCLK(path)); - if (on) - tmp &= ~SCLK_DISABLE; - else - tmp |= SCLK_DISABLE; - writel_relaxed(tmp, ctrl_regs(path) + LCD_SCLK(path)); - mutex_unlock(&path->access_ok); -} - -static void path_onoff(struct mmp_path *path, int on) -{ - if (path->status == on) { - dev_info(path->dev, "path %s is already %s\n", - path->name, stat_name(path->status)); - return; - } - - if (on) { - path_enabledisable(path, 1); - - if (path->panel && path->panel->set_onoff) - path->panel->set_onoff(path->panel, 1); - } else { - if (path->panel && path->panel->set_onoff) - path->panel->set_onoff(path->panel, 0); - - path_enabledisable(path, 0); - } - path->status = on; -} - -static void overlay_set_onoff(struct mmp_overlay *overlay, int on) -{ - if (overlay->status == on) { - dev_info(overlay_to_ctrl(overlay)->dev, "overlay %s is already %s\n", - overlay->path->name, stat_name(overlay->status)); - return; - } - overlay->status = on; - dmafetch_onoff(overlay, on); - if (overlay->path->ops.check_status(overlay->path) - != overlay->path->status) - path_onoff(overlay->path, on); -} - -static void overlay_set_fetch(struct mmp_overlay *overlay, int fetch_id) -{ - overlay->dmafetch_id = fetch_id; -} - -static int overlay_set_addr(struct mmp_overlay *overlay, struct mmp_addr *addr) -{ - struct lcd_regs *regs = path_regs(overlay->path); - - /* FIXME: assert addr supported */ - memcpy(&overlay->addr, addr, sizeof(struct mmp_addr)); - - if (overlay_is_vid(overlay)) { - writel_relaxed(addr->phys[0], ®s->v_y0); - writel_relaxed(addr->phys[1], ®s->v_u0); - writel_relaxed(addr->phys[2], ®s->v_v0); - } else - writel_relaxed(addr->phys[0], ®s->g_0); - - return overlay->addr.phys[0]; -} - -static void path_set_mode(struct mmp_path *path, struct mmp_mode *mode) -{ - struct lcd_regs *regs = path_regs(path); - u32 total_x, total_y, vsync_ctrl, tmp, sclk_src, sclk_div, - link_config = path_to_path_plat(path)->link_config, - dsi_rbswap = path_to_path_plat(path)->link_config; - - /* FIXME: assert videomode supported */ - memcpy(&path->mode, mode, sizeof(struct mmp_mode)); - - mutex_lock(&path->access_ok); - - /* polarity of timing signals */ - tmp = readl_relaxed(ctrl_regs(path) + intf_ctrl(path->id)) & 0x1; - tmp |= mode->vsync_invert ? 0 : 0x8; - tmp |= mode->hsync_invert ? 0 : 0x4; - tmp |= link_config & CFG_DUMBMODE_MASK; - tmp |= CFG_DUMB_ENA(1); - writel_relaxed(tmp, ctrl_regs(path) + intf_ctrl(path->id)); - - /* interface rb_swap setting */ - tmp = readl_relaxed(ctrl_regs(path) + intf_rbswap_ctrl(path->id)) & - (~(CFG_INTFRBSWAP_MASK)); - tmp |= dsi_rbswap & CFG_INTFRBSWAP_MASK; - writel_relaxed(tmp, ctrl_regs(path) + intf_rbswap_ctrl(path->id)); - - writel_relaxed((mode->yres << 16) | mode->xres, ®s->screen_active); - writel_relaxed((mode->left_margin << 16) | mode->right_margin, - ®s->screen_h_porch); - writel_relaxed((mode->upper_margin << 16) | mode->lower_margin, - ®s->screen_v_porch); - total_x = mode->xres + mode->left_margin + mode->right_margin + - mode->hsync_len; - total_y = mode->yres + mode->upper_margin + mode->lower_margin + - mode->vsync_len; - writel_relaxed((total_y << 16) | total_x, ®s->screen_size); - - /* vsync ctrl */ - if (path->output_type == PATH_OUT_DSI) - vsync_ctrl = 0x01330133; - else - vsync_ctrl = ((mode->xres + mode->right_margin) << 16) - | (mode->xres + mode->right_margin); - writel_relaxed(vsync_ctrl, ®s->vsync_ctrl); - - /* set pixclock div */ - sclk_src = clk_get_rate(path_to_ctrl(path)->clk); - sclk_div = sclk_src / mode->pixclock_freq; - if (sclk_div * mode->pixclock_freq < sclk_src) - sclk_div++; - - dev_info(path->dev, "%s sclk_src %d sclk_div 0x%x pclk %d\n", - __func__, sclk_src, sclk_div, mode->pixclock_freq); - - tmp = readl_relaxed(ctrl_regs(path) + LCD_SCLK(path)); - tmp &= ~CLK_INT_DIV_MASK; - tmp |= sclk_div; - writel_relaxed(tmp, ctrl_regs(path) + LCD_SCLK(path)); - - mutex_unlock(&path->access_ok); -} - -static struct mmp_overlay_ops mmphw_overlay_ops = { - .set_fetch = overlay_set_fetch, - .set_onoff = overlay_set_onoff, - .set_win = overlay_set_win, - .set_addr = overlay_set_addr, -}; - -static void ctrl_set_default(struct mmphw_ctrl *ctrl) -{ - u32 tmp, irq_mask; - - /* - * LCD Global control(LCD_TOP_CTRL) should be configed before - * any other LCD registers read/write, or there maybe issues. - */ - tmp = readl_relaxed(ctrl->reg_base + LCD_TOP_CTRL); - tmp |= 0xfff0; - writel_relaxed(tmp, ctrl->reg_base + LCD_TOP_CTRL); - - - /* disable all interrupts */ - irq_mask = path_imasks(0) | err_imask(0) | - path_imasks(1) | err_imask(1); - tmp = readl_relaxed(ctrl->reg_base + SPU_IRQ_ENA); - tmp &= ~irq_mask; - tmp |= irq_mask; - writel_relaxed(tmp, ctrl->reg_base + SPU_IRQ_ENA); -} - -static void path_set_default(struct mmp_path *path) -{ - struct lcd_regs *regs = path_regs(path); - u32 dma_ctrl1, mask, tmp, path_config; - - path_config = path_to_path_plat(path)->path_config; - - /* Configure IOPAD: should be parallel only */ - if (PATH_OUT_PARALLEL == path->output_type) { - mask = CFG_IOPADMODE_MASK | CFG_BURST_MASK | CFG_BOUNDARY_MASK; - tmp = readl_relaxed(ctrl_regs(path) + SPU_IOPAD_CONTROL); - tmp &= ~mask; - tmp |= path_config; - writel_relaxed(tmp, ctrl_regs(path) + SPU_IOPAD_CONTROL); - } - - /* Select path clock source */ - tmp = readl_relaxed(ctrl_regs(path) + LCD_SCLK(path)); - tmp &= ~SCLK_SRC_SEL_MASK; - tmp |= path_config; - writel_relaxed(tmp, ctrl_regs(path) + LCD_SCLK(path)); - - /* - * Configure default bits: vsync triggers DMA, - * power save enable, configure alpha registers to - * display 100% graphics, and set pixel command. - */ - dma_ctrl1 = 0x2032ff81; - - dma_ctrl1 |= CFG_VSYNC_INV_MASK; - writel_relaxed(dma_ctrl1, ctrl_regs(path) + dma_ctrl(1, path->id)); - - /* Configure default register values */ - writel_relaxed(0x00000000, ®s->blank_color); - writel_relaxed(0x00000000, ®s->g_1); - writel_relaxed(0x00000000, ®s->g_start); - - /* - * 1.enable multiple burst request in DMA AXI - * bus arbiter for faster read if not tv path; - * 2.enable horizontal smooth filter; - */ - mask = CFG_GRA_HSMOOTH_MASK | CFG_DMA_HSMOOTH_MASK | CFG_ARBFAST_ENA(1); - tmp = readl_relaxed(ctrl_regs(path) + dma_ctrl(0, path->id)); - tmp |= mask; - if (PATH_TV == path->id) - tmp &= ~CFG_ARBFAST_ENA(1); - writel_relaxed(tmp, ctrl_regs(path) + dma_ctrl(0, path->id)); -} - -static int path_init(struct mmphw_path_plat *path_plat, - struct mmp_mach_path_config *config) -{ - struct mmphw_ctrl *ctrl = path_plat->ctrl; - struct mmp_path_info *path_info; - struct mmp_path *path = NULL; - - dev_info(ctrl->dev, "%s: %s\n", __func__, config->name); - - /* init driver data */ - path_info = kzalloc(sizeof(struct mmp_path_info), GFP_KERNEL); - if (!path_info) { - dev_err(ctrl->dev, "%s: unable to alloc path_info for %s\n", - __func__, config->name); - return 0; - } - path_info->name = config->name; - path_info->id = path_plat->id; - path_info->dev = ctrl->dev; - path_info->overlay_num = config->overlay_num; - path_info->overlay_ops = &mmphw_overlay_ops; - path_info->set_mode = path_set_mode; - path_info->plat_data = path_plat; - - /* create/register platform device */ - path = mmp_register_path(path_info); - if (!path) { - kfree(path_info); - return 0; - } - path_plat->path = path; - path_plat->path_config = config->path_config; - path_plat->link_config = config->link_config; - path_plat->dsi_rbswap = config->dsi_rbswap; - path_set_default(path); - - kfree(path_info); - return 1; -} - -static void path_deinit(struct mmphw_path_plat *path_plat) -{ - if (!path_plat) - return; - - if (path_plat->path) - mmp_unregister_path(path_plat->path); -} - -static int mmphw_probe(struct platform_device *pdev) -{ - struct mmp_mach_plat_info *mi; - struct resource *res; - int ret, i, size, irq; - struct mmphw_path_plat *path_plat; - struct mmphw_ctrl *ctrl = NULL; - - /* get resources from platform data */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { - dev_err(&pdev->dev, "%s: no IO memory defined\n", __func__); - ret = -ENOENT; - goto failed; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "%s: no IRQ defined\n", __func__); - ret = -ENOENT; - goto failed; - } - - /* get configs from platform data */ - mi = pdev->dev.platform_data; - if (mi == NULL || !mi->path_num || !mi->paths) { - dev_err(&pdev->dev, "%s: no platform data defined\n", __func__); - ret = -EINVAL; - goto failed; - } - - /* allocate */ - size = sizeof(struct mmphw_ctrl) + sizeof(struct mmphw_path_plat) * - mi->path_num; - ctrl = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); - if (!ctrl) { - ret = -ENOMEM; - goto failed; - } - - ctrl->name = mi->name; - ctrl->path_num = mi->path_num; - ctrl->dev = &pdev->dev; - ctrl->irq = irq; - platform_set_drvdata(pdev, ctrl); - mutex_init(&ctrl->access_ok); - - /* map registers.*/ - if (!devm_request_mem_region(ctrl->dev, res->start, - resource_size(res), ctrl->name)) { - dev_err(ctrl->dev, - "can't request region for resource %pR\n", res); - ret = -EINVAL; - goto failed; - } - - ctrl->reg_base = devm_ioremap_nocache(ctrl->dev, - res->start, resource_size(res)); - if (ctrl->reg_base == NULL) { - dev_err(ctrl->dev, "%s: res %x - %x map failed\n", __func__, - res->start, res->end); - ret = -ENOMEM; - goto failed; - } - - /* request irq */ - ret = devm_request_irq(ctrl->dev, ctrl->irq, ctrl_handle_irq, - IRQF_SHARED, "lcd_controller", ctrl); - if (ret < 0) { - dev_err(ctrl->dev, "%s unable to request IRQ %d\n", - __func__, ctrl->irq); - ret = -ENXIO; - goto failed; - } - - /* get clock */ - ctrl->clk = devm_clk_get(ctrl->dev, mi->clk_name); - if (IS_ERR(ctrl->clk)) { - dev_err(ctrl->dev, "unable to get clk %s\n", mi->clk_name); - ret = -ENOENT; - goto failed; - } - clk_prepare_enable(ctrl->clk); - - /* init global regs */ - ctrl_set_default(ctrl); - - /* init pathes from machine info and register them */ - for (i = 0; i < ctrl->path_num; i++) { - /* get from config and machine info */ - path_plat = &ctrl->path_plats[i]; - path_plat->id = i; - path_plat->ctrl = ctrl; - - /* path init */ - if (!path_init(path_plat, &mi->paths[i])) { - ret = -EINVAL; - goto failed_path_init; - } - } - -#ifdef CONFIG_MMP_DISP_SPI - ret = lcd_spi_register(ctrl); - if (ret < 0) - goto failed_path_init; -#endif - - dev_info(ctrl->dev, "device init done\n"); - - return 0; - -failed_path_init: - for (i = 0; i < ctrl->path_num; i++) { - path_plat = &ctrl->path_plats[i]; - path_deinit(path_plat); - } - - clk_disable_unprepare(ctrl->clk); -failed: - dev_err(&pdev->dev, "device init failed\n"); - - return ret; -} - -static struct platform_driver mmphw_driver = { - .driver = { - .name = "mmp-disp", - .owner = THIS_MODULE, - }, - .probe = mmphw_probe, -}; - -static int mmphw_init(void) -{ - return platform_driver_register(&mmphw_driver); -} -module_init(mmphw_init); - -MODULE_AUTHOR("Li Guoqing<ligq@marvell.com>"); -MODULE_DESCRIPTION("Framebuffer driver for mmp"); -MODULE_LICENSE("GPL"); |