summaryrefslogtreecommitdiffstats
path: root/drivers/video/fbdev/bf54x-lq043fb.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-03 05:20:12 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-03 05:20:12 +0200
commitf5a8eb632b562bd9c16c389f5db3a5260fba4157 (patch)
tree82687234d772ff8f72a31e598fe16553885c56c9 /drivers/video/fbdev/bf54x-lq043fb.c
parentMerge tag 'nds32-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel... (diff)
parentMAINTAINERS: UNICORE32: Change email account (diff)
downloadlinux-f5a8eb632b562bd9c16c389f5db3a5260fba4157.tar.xz
linux-f5a8eb632b562bd9c16c389f5db3a5260fba4157.zip
Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann: "This removes the entire architecture code for blackfin, cris, frv, m32r, metag, mn10300, score, and tile, including the associated device drivers. I have been working with the (former) maintainers for each one to ensure that my interpretation was right and the code is definitely unused in mainline kernels. Many had fond memories of working on the respective ports to start with and getting them included in upstream, but also saw no point in keeping the port alive without any users. In the end, it seems that while the eight architectures are extremely different, they all suffered the same fate: There was one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem, which was more costly than licensing newer off-the-shelf CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems that all the SoC product lines are still around, but have not used the custom CPU architectures for several years at this point. In contrast, CPU instruction sets that remain popular and have actively maintained kernel ports tend to all be used across multiple licensees. [ See the new nds32 port merged in the previous commit for the next generation of "one company in charge of an SoC line, a CPU microarchitecture and a software ecosystem" - Linus ] The removal came out of a discussion that is now documented at https://lwn.net/Articles/748074/. Unlike the original plans, I'm not marking any ports as deprecated but remove them all at once after I made sure that they are all unused. Some architectures (notably tile, mn10300, and blackfin) are still being shipped in products with old kernels, but those products will never be updated to newer kernel releases. After this series, we still have a few architectures without mainline gcc support: - unicore32 and hexagon both have very outdated gcc releases, but the maintainers promised to work on providing something newer. At least in case of hexagon, this will only be llvm, not gcc. - openrisc, risc-v and nds32 are still in the process of finishing their support or getting it added to mainline gcc in the first place. They all have patched gcc-7.3 ports that work to some degree, but complete upstream support won't happen before gcc-8.1. Csky posted their first kernel patch set last week, their situation will be similar [ Palmer Dabbelt points out that RISC-V support is in mainline gcc since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]" This really says it all: 2498 files changed, 95 insertions(+), 467668 deletions(-) * tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits) MAINTAINERS: UNICORE32: Change email account staging: iio: remove iio-trig-bfin-timer driver tty: hvc: remove tile driver tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers serial: remove tile uart driver serial: remove m32r_sio driver serial: remove blackfin drivers serial: remove cris/etrax uart drivers usb: Remove Blackfin references in USB support usb: isp1362: remove blackfin arch glue usb: musb: remove blackfin port usb: host: remove tilegx platform glue pwm: remove pwm-bfin driver i2c: remove bfin-twi driver spi: remove blackfin related host drivers watchdog: remove bfin_wdt driver can: remove bfin_can driver mmc: remove bfin_sdh driver input: misc: remove blackfin rotary driver input: keyboard: remove bf54x driver ...
Diffstat (limited to 'drivers/video/fbdev/bf54x-lq043fb.c')
-rw-r--r--drivers/video/fbdev/bf54x-lq043fb.c764
1 files changed, 0 insertions, 764 deletions
diff --git a/drivers/video/fbdev/bf54x-lq043fb.c b/drivers/video/fbdev/bf54x-lq043fb.c
deleted file mode 100644
index 8f1f97c75619..000000000000
--- a/drivers/video/fbdev/bf54x-lq043fb.c
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
- * File: drivers/video/bf54x-lq043.c
- * Based on:
- * Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
- *
- * Created:
- * Description: ADSP-BF54x Framebuffer driver
- *
- *
- * Modified:
- * Copyright 2007-2008 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * 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 the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/device.h>
-#include <linux/backlight.h>
-#include <linux/lcd.h>
-#include <linux/spinlock.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-
-#include <asm/blackfin.h>
-#include <asm/irq.h>
-#include <asm/dpmc.h>
-#include <asm/dma-mapping.h>
-#include <asm/dma.h>
-#include <asm/portmux.h>
-
-#include <mach/bf54x-lq043.h>
-
-#define NO_BL_SUPPORT
-
-#define DRIVER_NAME "bf54x-lq043"
-static char driver_name[] = DRIVER_NAME;
-
-#define BFIN_LCD_NBR_PALETTE_ENTRIES 256
-
-#define EPPI0_18 {P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2, P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3, \
- P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7, P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, \
- P_PPI0_D11, P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15, P_PPI0_D16, P_PPI0_D17, 0}
-
-#define EPPI0_24 {P_PPI0_D18, P_PPI0_D19, P_PPI0_D20, P_PPI0_D21, P_PPI0_D22, P_PPI0_D23, 0}
-
-struct bfin_bf54xfb_info {
- struct fb_info *fb;
- struct device *dev;
-
- struct bfin_bf54xfb_mach_info *mach_info;
-
- unsigned char *fb_buffer; /* RGB Buffer */
-
- dma_addr_t dma_handle;
- int lq043_open_cnt;
- int irq;
- spinlock_t lock; /* lock */
-};
-
-static int nocursor;
-module_param(nocursor, int, 0644);
-MODULE_PARM_DESC(nocursor, "cursor enable/disable");
-
-static int outp_rgb666;
-module_param(outp_rgb666, int, 0);
-MODULE_PARM_DESC(outp_rgb666, "Output 18-bit RGB666");
-
-#define LCD_X_RES 480 /*Horizontal Resolution */
-#define LCD_Y_RES 272 /* Vertical Resolution */
-
-#define LCD_BPP 24 /* Bit Per Pixel */
-#define DMA_BUS_SIZE 32
-
-/* -- Horizontal synchronizing --
- *
- * Timing characteristics taken from the SHARP LQ043T1DG01 datasheet
- * (LCY-W-06602A Page 9 of 22)
- *
- * Clock Frequency 1/Tc Min 7.83 Typ 9.00 Max 9.26 MHz
- *
- * Period TH - 525 - Clock
- * Pulse width THp - 41 - Clock
- * Horizontal period THd - 480 - Clock
- * Back porch THb - 2 - Clock
- * Front porch THf - 2 - Clock
- *
- * -- Vertical synchronizing --
- * Period TV - 286 - Line
- * Pulse width TVp - 10 - Line
- * Vertical period TVd - 272 - Line
- * Back porch TVb - 2 - Line
- * Front porch TVf - 2 - Line
- */
-
-#define LCD_CLK (8*1000*1000) /* 8MHz */
-
-/* # active data to transfer after Horizontal Delay clock */
-#define EPPI_HCOUNT LCD_X_RES
-
-/* # active lines to transfer after Vertical Delay clock */
-#define EPPI_VCOUNT LCD_Y_RES
-
-/* Samples per Line = 480 (active data) + 45 (padding) */
-#define EPPI_LINE 525
-
-/* Lines per Frame = 272 (active data) + 14 (padding) */
-#define EPPI_FRAME 286
-
-/* FS1 (Hsync) Width (Typical)*/
-#define EPPI_FS1W_HBL 41
-
-/* FS1 (Hsync) Period (Typical) */
-#define EPPI_FS1P_AVPL EPPI_LINE
-
-/* Horizontal Delay clock after assertion of Hsync (Typical) */
-#define EPPI_HDELAY 43
-
-/* FS2 (Vsync) Width = FS1 (Hsync) Period * 10 */
-#define EPPI_FS2W_LVB (EPPI_LINE * 10)
-
- /* FS2 (Vsync) Period = FS1 (Hsync) Period * Lines per Frame */
-#define EPPI_FS2P_LAVF (EPPI_LINE * EPPI_FRAME)
-
-/* Vertical Delay after assertion of Vsync (2 Lines) */
-#define EPPI_VDELAY 12
-
-#define EPPI_CLIP 0xFF00FF00
-
-/* EPPI Control register configuration value for RGB out
- * - EPPI as Output
- * GP 2 frame sync mode,
- * Internal Clock generation disabled, Internal FS generation enabled,
- * Receives samples on EPPI_CLK raising edge, Transmits samples on EPPI_CLK falling edge,
- * FS1 & FS2 are active high,
- * DLEN = 6 (24 bits for RGB888 out) or 5 (18 bits for RGB666 out)
- * DMA Unpacking disabled when RGB Formating is enabled, otherwise DMA unpacking enabled
- * Swapping Enabled,
- * One (DMA) Channel Mode,
- * RGB Formatting Enabled for RGB666 output, disabled for RGB888 output
- * Regular watermark - when FIFO is 100% full,
- * Urgent watermark - when FIFO is 75% full
- */
-
-#define EPPI_CONTROL (0x20136E2E | SWAPEN)
-
-static inline u16 get_eppi_clkdiv(u32 target_ppi_clk)
-{
- u32 sclk = get_sclk();
-
- /* EPPI_CLK = (SCLK) / (2 * (EPPI_CLKDIV[15:0] + 1)) */
-
- return (((sclk / target_ppi_clk) / 2) - 1);
-}
-
-static void config_ppi(struct bfin_bf54xfb_info *fbi)
-{
-
- u16 eppi_clkdiv = get_eppi_clkdiv(LCD_CLK);
-
- bfin_write_EPPI0_FS1W_HBL(EPPI_FS1W_HBL);
- bfin_write_EPPI0_FS1P_AVPL(EPPI_FS1P_AVPL);
- bfin_write_EPPI0_FS2W_LVB(EPPI_FS2W_LVB);
- bfin_write_EPPI0_FS2P_LAVF(EPPI_FS2P_LAVF);
- bfin_write_EPPI0_CLIP(EPPI_CLIP);
-
- bfin_write_EPPI0_FRAME(EPPI_FRAME);
- bfin_write_EPPI0_LINE(EPPI_LINE);
-
- bfin_write_EPPI0_HCOUNT(EPPI_HCOUNT);
- bfin_write_EPPI0_HDELAY(EPPI_HDELAY);
- bfin_write_EPPI0_VCOUNT(EPPI_VCOUNT);
- bfin_write_EPPI0_VDELAY(EPPI_VDELAY);
-
- bfin_write_EPPI0_CLKDIV(eppi_clkdiv);
-
-/*
- * DLEN = 6 (24 bits for RGB888 out) or 5 (18 bits for RGB666 out)
- * RGB Formatting Enabled for RGB666 output, disabled for RGB888 output
- */
- if (outp_rgb666)
- bfin_write_EPPI0_CONTROL((EPPI_CONTROL & ~DLENGTH) | DLEN_18 |
- RGB_FMT_EN);
- else
- bfin_write_EPPI0_CONTROL(((EPPI_CONTROL & ~DLENGTH) | DLEN_24) &
- ~RGB_FMT_EN);
-
-
-}
-
-static int config_dma(struct bfin_bf54xfb_info *fbi)
-{
-
- set_dma_config(CH_EPPI0,
- set_bfin_dma_config(DIR_READ, DMA_FLOW_AUTO,
- INTR_DISABLE, DIMENSION_2D,
- DATA_SIZE_32,
- DMA_NOSYNC_KEEP_DMA_BUF));
- set_dma_x_count(CH_EPPI0, (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE);
- set_dma_x_modify(CH_EPPI0, DMA_BUS_SIZE / 8);
- set_dma_y_count(CH_EPPI0, LCD_Y_RES);
- set_dma_y_modify(CH_EPPI0, DMA_BUS_SIZE / 8);
- set_dma_start_addr(CH_EPPI0, (unsigned long)fbi->fb_buffer);
-
- return 0;
-}
-
-static int request_ports(struct bfin_bf54xfb_info *fbi)
-{
-
- u16 eppi_req_18[] = EPPI0_18;
- u16 disp = fbi->mach_info->disp;
-
- if (gpio_request_one(disp, GPIOF_OUT_INIT_HIGH, DRIVER_NAME)) {
- printk(KERN_ERR "Requesting GPIO %d failed\n", disp);
- return -EFAULT;
- }
-
- if (peripheral_request_list(eppi_req_18, DRIVER_NAME)) {
- printk(KERN_ERR "Requesting Peripherals failed\n");
- gpio_free(disp);
- return -EFAULT;
- }
-
- if (!outp_rgb666) {
-
- u16 eppi_req_24[] = EPPI0_24;
-
- if (peripheral_request_list(eppi_req_24, DRIVER_NAME)) {
- printk(KERN_ERR "Requesting Peripherals failed\n");
- peripheral_free_list(eppi_req_18);
- gpio_free(disp);
- return -EFAULT;
- }
- }
-
- return 0;
-}
-
-static void free_ports(struct bfin_bf54xfb_info *fbi)
-{
-
- u16 eppi_req_18[] = EPPI0_18;
-
- gpio_free(fbi->mach_info->disp);
-
- peripheral_free_list(eppi_req_18);
-
- if (!outp_rgb666) {
- u16 eppi_req_24[] = EPPI0_24;
- peripheral_free_list(eppi_req_24);
- }
-}
-
-static int bfin_bf54x_fb_open(struct fb_info *info, int user)
-{
- struct bfin_bf54xfb_info *fbi = info->par;
-
- spin_lock(&fbi->lock);
- fbi->lq043_open_cnt++;
-
- if (fbi->lq043_open_cnt <= 1) {
-
- bfin_write_EPPI0_CONTROL(0);
- SSYNC();
-
- config_dma(fbi);
- config_ppi(fbi);
-
- /* start dma */
- enable_dma(CH_EPPI0);
- bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() | EPPI_EN);
- }
-
- spin_unlock(&fbi->lock);
-
- return 0;
-}
-
-static int bfin_bf54x_fb_release(struct fb_info *info, int user)
-{
- struct bfin_bf54xfb_info *fbi = info->par;
-
- spin_lock(&fbi->lock);
-
- fbi->lq043_open_cnt--;
-
- if (fbi->lq043_open_cnt <= 0) {
-
- bfin_write_EPPI0_CONTROL(0);
- SSYNC();
- disable_dma(CH_EPPI0);
- }
-
- spin_unlock(&fbi->lock);
-
- return 0;
-}
-
-static int bfin_bf54x_fb_check_var(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
-
- switch (var->bits_per_pixel) {
- case 24:/* TRUECOLOUR, 16m */
- var->red.offset = 16;
- var->green.offset = 8;
- var->blue.offset = 0;
- var->red.length = var->green.length = var->blue.length = 8;
- var->transp.offset = 0;
- var->transp.length = 0;
- var->transp.msb_right = 0;
- var->red.msb_right = 0;
- var->green.msb_right = 0;
- var->blue.msb_right = 0;
- break;
- default:
- pr_debug("%s: depth not supported: %u BPP\n", __func__,
- var->bits_per_pixel);
- return -EINVAL;
- }
-
- if (info->var.xres != var->xres || info->var.yres != var->yres ||
- info->var.xres_virtual != var->xres_virtual ||
- info->var.yres_virtual != var->yres_virtual) {
- pr_debug("%s: Resolution not supported: X%u x Y%u \n",
- __func__, var->xres, var->yres);
- return -EINVAL;
- }
-
- /*
- * Memory limit
- */
-
- if ((info->fix.line_length * var->yres_virtual) > info->fix.smem_len) {
- pr_debug("%s: Memory Limit requested yres_virtual = %u\n",
- __func__, var->yres_virtual);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-int bfin_bf54x_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
-{
- if (nocursor)
- return 0;
- else
- return -EINVAL; /* just to force soft_cursor() call */
-}
-
-static int bfin_bf54x_fb_setcolreg(u_int regno, u_int red, u_int green,
- u_int blue, u_int transp,
- struct fb_info *info)
-{
- if (regno >= BFIN_LCD_NBR_PALETTE_ENTRIES)
- return -EINVAL;
-
- if (info->var.grayscale) {
- /* grayscale = 0.30*R + 0.59*G + 0.11*B */
- red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
- }
-
- if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
-
- u32 value;
- /* Place color in the pseudopalette */
- if (regno > 16)
- return -EINVAL;
-
- red >>= (16 - info->var.red.length);
- green >>= (16 - info->var.green.length);
- blue >>= (16 - info->var.blue.length);
-
- value = (red << info->var.red.offset) |
- (green << info->var.green.offset) |
- (blue << info->var.blue.offset);
- value &= 0xFFFFFF;
-
- ((u32 *) (info->pseudo_palette))[regno] = value;
-
- }
-
- return 0;
-}
-
-static struct fb_ops bfin_bf54x_fb_ops = {
- .owner = THIS_MODULE,
- .fb_open = bfin_bf54x_fb_open,
- .fb_release = bfin_bf54x_fb_release,
- .fb_check_var = bfin_bf54x_fb_check_var,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_cursor = bfin_bf54x_fb_cursor,
- .fb_setcolreg = bfin_bf54x_fb_setcolreg,
-};
-
-#ifndef NO_BL_SUPPORT
-static int bl_get_brightness(struct backlight_device *bd)
-{
- return 0;
-}
-
-static const struct backlight_ops bfin_lq043fb_bl_ops = {
- .get_brightness = bl_get_brightness,
-};
-
-static struct backlight_device *bl_dev;
-
-static int bfin_lcd_get_power(struct lcd_device *dev)
-{
- return 0;
-}
-
-static int bfin_lcd_set_power(struct lcd_device *dev, int power)
-{
- return 0;
-}
-
-static int bfin_lcd_get_contrast(struct lcd_device *dev)
-{
- return 0;
-}
-
-static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast)
-{
-
- return 0;
-}
-
-static int bfin_lcd_check_fb(struct lcd_device *dev, struct fb_info *fi)
-{
- if (!fi || (fi == &bfin_bf54x_fb))
- return 1;
- return 0;
-}
-
-static struct lcd_ops bfin_lcd_ops = {
- .get_power = bfin_lcd_get_power,
- .set_power = bfin_lcd_set_power,
- .get_contrast = bfin_lcd_get_contrast,
- .set_contrast = bfin_lcd_set_contrast,
- .check_fb = bfin_lcd_check_fb,
-};
-
-static struct lcd_device *lcd_dev;
-#endif
-
-static irqreturn_t bfin_bf54x_irq_error(int irq, void *dev_id)
-{
- /*struct bfin_bf54xfb_info *info = dev_id;*/
-
- u16 status = bfin_read_EPPI0_STATUS();
-
- bfin_write_EPPI0_STATUS(0xFFFF);
-
- if (status) {
- bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() & ~EPPI_EN);
- disable_dma(CH_EPPI0);
-
- /* start dma */
- enable_dma(CH_EPPI0);
- bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() | EPPI_EN);
- bfin_write_EPPI0_STATUS(0xFFFF);
- }
-
- return IRQ_HANDLED;
-}
-
-static int bfin_bf54x_probe(struct platform_device *pdev)
-{
-#ifndef NO_BL_SUPPORT
- struct backlight_properties props;
-#endif
- struct bfin_bf54xfb_info *info;
- struct fb_info *fbinfo;
- int ret;
-
- printk(KERN_INFO DRIVER_NAME ": FrameBuffer initializing...\n");
-
- if (request_dma(CH_EPPI0, "CH_EPPI0") < 0) {
- printk(KERN_ERR DRIVER_NAME
- ": couldn't request CH_EPPI0 DMA\n");
- ret = -EFAULT;
- goto out1;
- }
-
- fbinfo =
- framebuffer_alloc(sizeof(struct bfin_bf54xfb_info), &pdev->dev);
- if (!fbinfo) {
- ret = -ENOMEM;
- goto out2;
- }
-
- info = fbinfo->par;
- info->fb = fbinfo;
- info->dev = &pdev->dev;
- spin_lock_init(&info->lock);
-
- platform_set_drvdata(pdev, fbinfo);
-
- strcpy(fbinfo->fix.id, driver_name);
-
- info->mach_info = pdev->dev.platform_data;
-
- if (info->mach_info == NULL) {
- dev_err(&pdev->dev,
- "no platform data for lcd, cannot attach\n");
- ret = -EINVAL;
- goto out3;
- }
-
- fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
- fbinfo->fix.type_aux = 0;
- fbinfo->fix.xpanstep = 0;
- fbinfo->fix.ypanstep = 0;
- fbinfo->fix.ywrapstep = 0;
- fbinfo->fix.accel = FB_ACCEL_NONE;
- fbinfo->fix.visual = FB_VISUAL_TRUECOLOR;
-
- fbinfo->var.nonstd = 0;
- fbinfo->var.activate = FB_ACTIVATE_NOW;
- fbinfo->var.height = info->mach_info->height;
- fbinfo->var.width = info->mach_info->width;
- fbinfo->var.accel_flags = 0;
- fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
-
- fbinfo->fbops = &bfin_bf54x_fb_ops;
- fbinfo->flags = FBINFO_FLAG_DEFAULT;
-
- fbinfo->var.xres = info->mach_info->xres.defval;
- fbinfo->var.xres_virtual = info->mach_info->xres.defval;
- fbinfo->var.yres = info->mach_info->yres.defval;
- fbinfo->var.yres_virtual = info->mach_info->yres.defval;
- fbinfo->var.bits_per_pixel = info->mach_info->bpp.defval;
-
- fbinfo->var.upper_margin = 0;
- fbinfo->var.lower_margin = 0;
- fbinfo->var.vsync_len = 0;
-
- fbinfo->var.left_margin = 0;
- fbinfo->var.right_margin = 0;
- fbinfo->var.hsync_len = 0;
-
- fbinfo->var.red.offset = 16;
- fbinfo->var.green.offset = 8;
- fbinfo->var.blue.offset = 0;
- fbinfo->var.transp.offset = 0;
- fbinfo->var.red.length = 8;
- fbinfo->var.green.length = 8;
- fbinfo->var.blue.length = 8;
- fbinfo->var.transp.length = 0;
- fbinfo->fix.smem_len = info->mach_info->xres.max *
- info->mach_info->yres.max * info->mach_info->bpp.max / 8;
-
- fbinfo->fix.line_length = fbinfo->var.xres_virtual *
- fbinfo->var.bits_per_pixel / 8;
-
- info->fb_buffer =
- dma_alloc_coherent(NULL, fbinfo->fix.smem_len, &info->dma_handle,
- GFP_KERNEL);
-
- if (NULL == info->fb_buffer) {
- printk(KERN_ERR DRIVER_NAME
- ": couldn't allocate dma buffer.\n");
- ret = -ENOMEM;
- goto out3;
- }
-
- fbinfo->screen_base = (void *)info->fb_buffer;
- fbinfo->fix.smem_start = (int)info->fb_buffer;
-
- fbinfo->fbops = &bfin_bf54x_fb_ops;
-
- fbinfo->pseudo_palette = devm_kzalloc(&pdev->dev, sizeof(u32) * 16,
- GFP_KERNEL);
- if (!fbinfo->pseudo_palette) {
- printk(KERN_ERR DRIVER_NAME
- "Fail to allocate pseudo_palette\n");
-
- ret = -ENOMEM;
- goto out4;
- }
-
- if (fb_alloc_cmap(&fbinfo->cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0)
- < 0) {
- printk(KERN_ERR DRIVER_NAME
- "Fail to allocate colormap (%d entries)\n",
- BFIN_LCD_NBR_PALETTE_ENTRIES);
- ret = -EFAULT;
- goto out4;
- }
-
- if (request_ports(info)) {
- printk(KERN_ERR DRIVER_NAME ": couldn't request gpio port.\n");
- ret = -EFAULT;
- goto out6;
- }
-
- info->irq = platform_get_irq(pdev, 0);
- if (info->irq < 0) {
- ret = -EINVAL;
- goto out7;
- }
-
- if (request_irq(info->irq, bfin_bf54x_irq_error, 0,
- "PPI ERROR", info) < 0) {
- printk(KERN_ERR DRIVER_NAME
- ": unable to request PPI ERROR IRQ\n");
- ret = -EFAULT;
- goto out7;
- }
-
- if (register_framebuffer(fbinfo) < 0) {
- printk(KERN_ERR DRIVER_NAME
- ": unable to register framebuffer.\n");
- ret = -EINVAL;
- goto out8;
- }
-#ifndef NO_BL_SUPPORT
- memset(&props, 0, sizeof(struct backlight_properties));
- props.type = BACKLIGHT_RAW;
- props.max_brightness = 255;
- bl_dev = backlight_device_register("bf54x-bl", NULL, NULL,
- &bfin_lq043fb_bl_ops, &props);
- if (IS_ERR(bl_dev)) {
- printk(KERN_ERR DRIVER_NAME
- ": unable to register backlight.\n");
- ret = -EINVAL;
- unregister_framebuffer(fbinfo);
- goto out8;
- }
-
- lcd_dev = lcd_device_register(DRIVER_NAME, &pdev->dev, NULL, &bfin_lcd_ops);
- lcd_dev->props.max_contrast = 255, printk(KERN_INFO "Done.\n");
-#endif
-
- return 0;
-
-out8:
- free_irq(info->irq, info);
-out7:
- free_ports(info);
-out6:
- fb_dealloc_cmap(&fbinfo->cmap);
-out4:
- dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
- info->dma_handle);
-out3:
- framebuffer_release(fbinfo);
-out2:
- free_dma(CH_EPPI0);
-out1:
-
- return ret;
-}
-
-static int bfin_bf54x_remove(struct platform_device *pdev)
-{
-
- struct fb_info *fbinfo = platform_get_drvdata(pdev);
- struct bfin_bf54xfb_info *info = fbinfo->par;
-
- free_dma(CH_EPPI0);
- free_irq(info->irq, info);
-
- if (info->fb_buffer != NULL)
- dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
- info->dma_handle);
-
- fb_dealloc_cmap(&fbinfo->cmap);
-
-#ifndef NO_BL_SUPPORT
- lcd_device_unregister(lcd_dev);
- backlight_device_unregister(bl_dev);
-#endif
-
- unregister_framebuffer(fbinfo);
-
- free_ports(info);
-
- printk(KERN_INFO DRIVER_NAME ": Unregister LCD driver.\n");
-
- return 0;
-}
-
-#ifdef CONFIG_PM
-static int bfin_bf54x_suspend(struct platform_device *pdev, pm_message_t state)
-{
- bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() & ~EPPI_EN);
- disable_dma(CH_EPPI0);
- bfin_write_EPPI0_STATUS(0xFFFF);
-
- return 0;
-}
-
-static int bfin_bf54x_resume(struct platform_device *pdev)
-{
- struct fb_info *fbinfo = platform_get_drvdata(pdev);
- struct bfin_bf54xfb_info *info = fbinfo->par;
-
- if (info->lq043_open_cnt) {
-
- bfin_write_EPPI0_CONTROL(0);
- SSYNC();
-
- config_dma(info);
- config_ppi(info);
-
- /* start dma */
- enable_dma(CH_EPPI0);
- bfin_write_EPPI0_CONTROL(bfin_read_EPPI0_CONTROL() | EPPI_EN);
- }
-
- return 0;
-}
-#else
-#define bfin_bf54x_suspend NULL
-#define bfin_bf54x_resume NULL
-#endif
-
-static struct platform_driver bfin_bf54x_driver = {
- .probe = bfin_bf54x_probe,
- .remove = bfin_bf54x_remove,
- .suspend = bfin_bf54x_suspend,
- .resume = bfin_bf54x_resume,
- .driver = {
- .name = DRIVER_NAME,
- },
-};
-module_platform_driver(bfin_bf54x_driver);
-
-MODULE_DESCRIPTION("Blackfin BF54x TFT LCD Driver");
-MODULE_LICENSE("GPL");