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686 lines
16 KiB
C
686 lines
16 KiB
C
![]() |
/*
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* File: drivers/video/bfin-t350mcqb-fb.c
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* Based on:
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* Author: Michael Hennerich <hennerich@blackfin.uclinux.org>
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*
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* Created:
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* Description: Blackfin LCD Framebufer driver
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*
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*
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* Modified:
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* Copyright 2004-2007 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/fb.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/device.h>
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#include <linux/backlight.h>
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#include <linux/lcd.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <asm/blackfin.h>
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#include <asm/irq.h>
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#include <asm/dma-mapping.h>
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#include <asm/dma.h>
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#include <asm/portmux.h>
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#include <asm/gptimers.h>
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#define NO_BL_SUPPORT
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#define LCD_X_RES 320 /* Horizontal Resolution */
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#define LCD_Y_RES 240 /* Vertical Resolution */
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#define LCD_BPP 24 /* Bit Per Pixel */
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#define DMA_BUS_SIZE 16
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#define LCD_CLK (12*1000*1000) /* 12MHz */
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#define CLOCKS_PER_PIX 3
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/*
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* HS and VS timing parameters (all in number of PPI clk ticks)
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*/
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#define U_LINE 1 /* Blanking Lines */
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#define H_ACTPIX (LCD_X_RES * CLOCKS_PER_PIX) /* active horizontal pixel */
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#define H_PERIOD (408 * CLOCKS_PER_PIX) /* HS period */
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#define H_PULSE 90 /* HS pulse width */
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#define H_START 204 /* first valid pixel */
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#define V_LINES (LCD_Y_RES + U_LINE) /* total vertical lines */
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#define V_PULSE (3 * H_PERIOD) /* VS pulse width (1-5 H_PERIODs) */
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#define V_PERIOD (H_PERIOD * V_LINES) /* VS period */
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#define ACTIVE_VIDEO_MEM_OFFSET (U_LINE * H_ACTPIX)
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#define BFIN_LCD_NBR_PALETTE_ENTRIES 256
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#define DRIVER_NAME "bfin-t350mcqb"
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static char driver_name[] = DRIVER_NAME;
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struct bfin_t350mcqbfb_info {
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struct fb_info *fb;
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struct device *dev;
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unsigned char *fb_buffer; /* RGB Buffer */
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dma_addr_t dma_handle;
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int lq043_mmap;
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int lq043_open_cnt;
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int irq;
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spinlock_t lock; /* lock */
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};
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static int nocursor;
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module_param(nocursor, int, 0644);
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MODULE_PARM_DESC(nocursor, "cursor enable/disable");
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#define PPI_TX_MODE 0x2
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#define PPI_XFER_TYPE_11 0xC
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#define PPI_PORT_CFG_01 0x10
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#define PPI_PACK_EN 0x80
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#define PPI_POLS_1 0x8000
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static void bfin_t350mcqb_config_ppi(struct bfin_t350mcqbfb_info *fbi)
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{
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bfin_write_PPI_DELAY(H_START);
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bfin_write_PPI_COUNT(H_ACTPIX-1);
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bfin_write_PPI_FRAME(V_LINES);
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bfin_write_PPI_CONTROL(PPI_TX_MODE | /* output mode , PORT_DIR */
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PPI_XFER_TYPE_11 | /* sync mode XFR_TYPE */
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PPI_PORT_CFG_01 | /* two frame sync PORT_CFG */
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PPI_PACK_EN | /* packing enabled PACK_EN */
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PPI_POLS_1); /* faling edge syncs POLS */
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}
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static inline void bfin_t350mcqb_disable_ppi(void)
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{
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bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() & ~PORT_EN);
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}
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static inline void bfin_t350mcqb_enable_ppi(void)
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{
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bfin_write_PPI_CONTROL(bfin_read_PPI_CONTROL() | PORT_EN);
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}
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static void bfin_t350mcqb_start_timers(void)
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{
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unsigned long flags;
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local_irq_save(flags);
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enable_gptimers(TIMER1bit);
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enable_gptimers(TIMER0bit);
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local_irq_restore(flags);
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}
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static void bfin_t350mcqb_stop_timers(void)
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{
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disable_gptimers(TIMER0bit | TIMER1bit);
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set_gptimer_status(0, TIMER_STATUS_TRUN0 | TIMER_STATUS_TRUN1 |
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TIMER_STATUS_TIMIL0 | TIMER_STATUS_TIMIL1 |
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TIMER_STATUS_TOVF0 | TIMER_STATUS_TOVF1);
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}
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static void bfin_t350mcqb_init_timers(void)
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{
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bfin_t350mcqb_stop_timers();
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set_gptimer_period(TIMER0_id, H_PERIOD);
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set_gptimer_pwidth(TIMER0_id, H_PULSE);
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set_gptimer_config(TIMER0_id, TIMER_MODE_PWM | TIMER_PERIOD_CNT |
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TIMER_TIN_SEL | TIMER_CLK_SEL|
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TIMER_EMU_RUN);
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set_gptimer_period(TIMER1_id, V_PERIOD);
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set_gptimer_pwidth(TIMER1_id, V_PULSE);
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set_gptimer_config(TIMER1_id, TIMER_MODE_PWM | TIMER_PERIOD_CNT |
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TIMER_TIN_SEL | TIMER_CLK_SEL |
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TIMER_EMU_RUN);
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}
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static void bfin_t350mcqb_config_dma(struct bfin_t350mcqbfb_info *fbi)
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{
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set_dma_config(CH_PPI,
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set_bfin_dma_config(DIR_READ, DMA_FLOW_AUTO,
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INTR_DISABLE, DIMENSION_2D,
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DATA_SIZE_16,
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DMA_NOSYNC_KEEP_DMA_BUF));
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set_dma_x_count(CH_PPI, (LCD_X_RES * LCD_BPP) / DMA_BUS_SIZE);
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set_dma_x_modify(CH_PPI, DMA_BUS_SIZE / 8);
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set_dma_y_count(CH_PPI, V_LINES);
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set_dma_y_modify(CH_PPI, DMA_BUS_SIZE / 8);
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set_dma_start_addr(CH_PPI, (unsigned long)fbi->fb_buffer);
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}
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static int bfin_t350mcqb_request_ports(int action)
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{
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u16 ppi0_req_8[] = {P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
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P_PPI0_D0, P_PPI0_D1, P_PPI0_D2,
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P_PPI0_D3, P_PPI0_D4, P_PPI0_D5,
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P_PPI0_D6, P_PPI0_D7, 0};
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if (action) {
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if (peripheral_request_list(ppi0_req_8, DRIVER_NAME)) {
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printk(KERN_ERR "Requesting Peripherals faild\n");
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return -EFAULT;
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}
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} else
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peripheral_free_list(ppi0_req_8);
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return 0;
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}
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static int bfin_t350mcqb_fb_open(struct fb_info *info, int user)
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{
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struct bfin_t350mcqbfb_info *fbi = info->par;
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spin_lock(&fbi->lock);
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fbi->lq043_open_cnt++;
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if (fbi->lq043_open_cnt <= 1) {
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bfin_t350mcqb_disable_ppi();
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SSYNC();
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bfin_t350mcqb_config_dma(fbi);
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bfin_t350mcqb_config_ppi(fbi);
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bfin_t350mcqb_init_timers();
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/* start dma */
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enable_dma(CH_PPI);
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bfin_t350mcqb_enable_ppi();
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bfin_t350mcqb_start_timers();
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}
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spin_unlock(&fbi->lock);
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return 0;
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}
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static int bfin_t350mcqb_fb_release(struct fb_info *info, int user)
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{
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struct bfin_t350mcqbfb_info *fbi = info->par;
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spin_lock(&fbi->lock);
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fbi->lq043_open_cnt--;
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fbi->lq043_mmap = 0;
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if (fbi->lq043_open_cnt <= 0) {
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bfin_t350mcqb_disable_ppi();
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SSYNC();
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disable_dma(CH_PPI);
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bfin_t350mcqb_stop_timers();
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memset(fbi->fb_buffer, 0, info->fix.smem_len);
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}
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spin_unlock(&fbi->lock);
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return 0;
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}
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static int bfin_t350mcqb_fb_check_var(struct fb_var_screeninfo *var,
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struct fb_info *info)
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{
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if (var->bits_per_pixel != LCD_BPP) {
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pr_debug("%s: depth not supported: %u BPP\n", __FUNCTION__,
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var->bits_per_pixel);
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return -EINVAL;
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}
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if (info->var.xres != var->xres || info->var.yres != var->yres ||
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info->var.xres_virtual != var->xres_virtual ||
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info->var.yres_virtual != var->yres_virtual) {
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pr_debug("%s: Resolution not supported: X%u x Y%u \n",
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__FUNCTION__, var->xres, var->yres);
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return -EINVAL;
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}
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/*
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* Memory limit
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*/
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if ((info->fix.line_length * var->yres_virtual) > info->fix.smem_len) {
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pr_debug("%s: Memory Limit requested yres_virtual = %u\n",
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__FUNCTION__, var->yres_virtual);
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return -ENOMEM;
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}
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return 0;
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}
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static int bfin_t350mcqb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
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{
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struct bfin_t350mcqbfb_info *fbi = info->par;
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if (fbi->lq043_mmap)
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return -1;
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spin_lock(&fbi->lock);
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fbi->lq043_mmap = 1;
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spin_unlock(&fbi->lock);
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vma->vm_start = (unsigned long)(fbi->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET);
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vma->vm_end = vma->vm_start + info->fix.smem_len;
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/* For those who don't understand how mmap works, go read
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* Documentation/nommu-mmap.txt.
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* For those that do, you will know that the VM_MAYSHARE flag
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* must be set in the vma->vm_flags structure on noMMU
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* Other flags can be set, and are documented in
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* include/linux/mm.h
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*/
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vma->vm_flags |= VM_MAYSHARE;
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return 0;
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}
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int bfin_t350mcqb_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
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{
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if (nocursor)
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return 0;
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else
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return -EINVAL; /* just to force soft_cursor() call */
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}
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static int bfin_t350mcqb_fb_setcolreg(u_int regno, u_int red, u_int green,
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u_int blue, u_int transp,
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struct fb_info *info)
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{
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if (regno >= BFIN_LCD_NBR_PALETTE_ENTRIES)
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return -EINVAL;
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if (info->var.grayscale) {
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/* grayscale = 0.30*R + 0.59*G + 0.11*B */
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red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
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}
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if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
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u32 value;
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/* Place color in the pseudopalette */
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if (regno > 16)
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return -EINVAL;
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red >>= (16 - info->var.red.length);
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green >>= (16 - info->var.green.length);
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blue >>= (16 - info->var.blue.length);
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value = (red << info->var.red.offset) |
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(green << info->var.green.offset) |
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(blue << info->var.blue.offset);
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value &= 0xFFFFFF;
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((u32 *) (info->pseudo_palette))[regno] = value;
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}
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return 0;
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}
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static struct fb_ops bfin_t350mcqb_fb_ops = {
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.owner = THIS_MODULE,
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.fb_open = bfin_t350mcqb_fb_open,
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.fb_release = bfin_t350mcqb_fb_release,
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.fb_check_var = bfin_t350mcqb_fb_check_var,
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.fb_fillrect = cfb_fillrect,
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.fb_copyarea = cfb_copyarea,
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.fb_imageblit = cfb_imageblit,
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.fb_mmap = bfin_t350mcqb_fb_mmap,
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.fb_cursor = bfin_t350mcqb_fb_cursor,
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.fb_setcolreg = bfin_t350mcqb_fb_setcolreg,
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};
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#ifndef NO_BL_SUPPORT
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static int bl_get_brightness(struct backlight_device *bd)
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{
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return 0;
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}
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static struct backlight_ops bfin_lq043fb_bl_ops = {
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.get_brightness = bl_get_brightness,
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};
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static struct backlight_device *bl_dev;
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static int bfin_lcd_get_power(struct lcd_device *dev)
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{
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return 0;
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}
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static int bfin_lcd_set_power(struct lcd_device *dev, int power)
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{
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return 0;
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}
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static int bfin_lcd_get_contrast(struct lcd_device *dev)
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{
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return 0;
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}
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static int bfin_lcd_set_contrast(struct lcd_device *dev, int contrast)
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{
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return 0;
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}
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static int bfin_lcd_check_fb(struct fb_info *fi)
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{
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if (!fi || (fi == &bfin_t350mcqb_fb))
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return 1;
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return 0;
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}
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static struct lcd_ops bfin_lcd_ops = {
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.get_power = bfin_lcd_get_power,
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.set_power = bfin_lcd_set_power,
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.get_contrast = bfin_lcd_get_contrast,
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.set_contrast = bfin_lcd_set_contrast,
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.check_fb = bfin_lcd_check_fb,
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};
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static struct lcd_device *lcd_dev;
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||
|
#endif
|
||
|
|
||
|
static irqreturn_t bfin_t350mcqb_irq_error(int irq, void *dev_id)
|
||
|
{
|
||
|
/*struct bfin_t350mcqbfb_info *info = (struct bfin_t350mcqbfb_info *)dev_id;*/
|
||
|
|
||
|
u16 status = bfin_read_PPI_STATUS();
|
||
|
bfin_write_PPI_STATUS(0xFFFF);
|
||
|
|
||
|
if (status) {
|
||
|
bfin_t350mcqb_disable_ppi();
|
||
|
disable_dma(CH_PPI);
|
||
|
|
||
|
/* start dma */
|
||
|
enable_dma(CH_PPI);
|
||
|
bfin_t350mcqb_enable_ppi();
|
||
|
bfin_write_PPI_STATUS(0xFFFF);
|
||
|
}
|
||
|
|
||
|
return IRQ_HANDLED;
|
||
|
}
|
||
|
|
||
|
static int __init bfin_t350mcqb_probe(struct platform_device *pdev)
|
||
|
{
|
||
|
struct bfin_t350mcqbfb_info *info;
|
||
|
struct fb_info *fbinfo;
|
||
|
int ret;
|
||
|
|
||
|
printk(KERN_INFO DRIVER_NAME ": %dx%d %d-bit RGB FrameBuffer initializing...\n",
|
||
|
LCD_X_RES, LCD_Y_RES, LCD_BPP);
|
||
|
|
||
|
if (request_dma(CH_PPI, "CH_PPI") < 0) {
|
||
|
printk(KERN_ERR DRIVER_NAME
|
||
|
": couldn't request CH_PPI DMA\n");
|
||
|
ret = -EFAULT;
|
||
|
goto out1;
|
||
|
}
|
||
|
|
||
|
fbinfo =
|
||
|
framebuffer_alloc(sizeof(struct bfin_t350mcqbfb_info), &pdev->dev);
|
||
|
if (!fbinfo) {
|
||
|
ret = -ENOMEM;
|
||
|
goto out2;
|
||
|
}
|
||
|
|
||
|
info = fbinfo->par;
|
||
|
info->fb = fbinfo;
|
||
|
info->dev = &pdev->dev;
|
||
|
|
||
|
platform_set_drvdata(pdev, fbinfo);
|
||
|
|
||
|
strcpy(fbinfo->fix.id, driver_name);
|
||
|
|
||
|
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 = -1;
|
||
|
fbinfo->var.width = -1;
|
||
|
fbinfo->var.accel_flags = 0;
|
||
|
fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
|
||
|
|
||
|
fbinfo->var.xres = LCD_X_RES;
|
||
|
fbinfo->var.xres_virtual = LCD_X_RES;
|
||
|
fbinfo->var.yres = LCD_Y_RES;
|
||
|
fbinfo->var.yres_virtual = LCD_Y_RES;
|
||
|
fbinfo->var.bits_per_pixel = LCD_BPP;
|
||
|
|
||
|
fbinfo->var.red.offset = 0;
|
||
|
fbinfo->var.green.offset = 8;
|
||
|
fbinfo->var.blue.offset = 16;
|
||
|
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 = LCD_X_RES * LCD_Y_RES * LCD_BPP / 8;
|
||
|
|
||
|
fbinfo->fix.line_length = fbinfo->var.xres_virtual *
|
||
|
fbinfo->var.bits_per_pixel / 8;
|
||
|
|
||
|
|
||
|
fbinfo->fbops = &bfin_t350mcqb_fb_ops;
|
||
|
fbinfo->flags = FBINFO_FLAG_DEFAULT;
|
||
|
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
memset(info->fb_buffer, 0, fbinfo->fix.smem_len);
|
||
|
|
||
|
fbinfo->screen_base = (void *)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET;
|
||
|
fbinfo->fix.smem_start = (int)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET;
|
||
|
|
||
|
fbinfo->fbops = &bfin_t350mcqb_fb_ops;
|
||
|
|
||
|
fbinfo->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
|
||
|
if (!fbinfo->pseudo_palette) {
|
||
|
printk(KERN_ERR DRIVER_NAME
|
||
|
"Fail to allocate pseudo_palette\n");
|
||
|
|
||
|
ret = -ENOMEM;
|
||
|
goto out4;
|
||
|
}
|
||
|
|
||
|
memset(fbinfo->pseudo_palette, 0, sizeof(u32) * 16);
|
||
|
|
||
|
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 out5;
|
||
|
}
|
||
|
|
||
|
if (bfin_t350mcqb_request_ports(1)) {
|
||
|
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, (void *)bfin_t350mcqb_irq_error, IRQF_DISABLED,
|
||
|
"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
|
||
|
bl_dev =
|
||
|
backlight_device_register("bf52x-bl", NULL, NULL,
|
||
|
&bfin_lq043fb_bl_ops);
|
||
|
bl_dev->props.max_brightness = 255;
|
||
|
|
||
|
lcd_dev = lcd_device_register(DRIVER_NAME, 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:
|
||
|
bfin_t350mcqb_request_ports(0);
|
||
|
out6:
|
||
|
fb_dealloc_cmap(&fbinfo->cmap);
|
||
|
out5:
|
||
|
kfree(fbinfo->pseudo_palette);
|
||
|
out4:
|
||
|
dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
|
||
|
info->dma_handle);
|
||
|
out3:
|
||
|
framebuffer_release(fbinfo);
|
||
|
out2:
|
||
|
free_dma(CH_PPI);
|
||
|
out1:
|
||
|
platform_set_drvdata(pdev, NULL);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int bfin_t350mcqb_remove(struct platform_device *pdev)
|
||
|
{
|
||
|
|
||
|
struct fb_info *fbinfo = platform_get_drvdata(pdev);
|
||
|
struct bfin_t350mcqbfb_info *info = fbinfo->par;
|
||
|
|
||
|
free_dma(CH_PPI);
|
||
|
free_irq(info->irq, info);
|
||
|
|
||
|
if (info->fb_buffer != NULL)
|
||
|
dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
|
||
|
info->dma_handle);
|
||
|
|
||
|
kfree(fbinfo->pseudo_palette);
|
||
|
fb_dealloc_cmap(&fbinfo->cmap);
|
||
|
|
||
|
#ifndef NO_BL_SUPPORT
|
||
|
lcd_device_unregister(lcd_dev);
|
||
|
backlight_device_unregister(bl_dev);
|
||
|
#endif
|
||
|
|
||
|
unregister_framebuffer(fbinfo);
|
||
|
|
||
|
bfin_t350mcqb_request_ports(0);
|
||
|
|
||
|
printk(KERN_INFO DRIVER_NAME ": Unregister LCD driver.\n");
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
#ifdef CONFIG_PM
|
||
|
static int bfin_t350mcqb_suspend(struct platform_device *pdev, pm_message_t state)
|
||
|
{
|
||
|
struct fb_info *fbinfo = platform_get_drvdata(pdev);
|
||
|
struct bfin_t350mcqbfb_info *info = fbinfo->par;
|
||
|
|
||
|
bfin_t350mcqb_disable_ppi();
|
||
|
disable_dma(CH_PPI);
|
||
|
bfin_write_PPI_STATUS(0xFFFF);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int bfin_t350mcqb_resume(struct platform_device *pdev)
|
||
|
{
|
||
|
struct fb_info *fbinfo = platform_get_drvdata(pdev);
|
||
|
struct bfin_t350mcqbfb_info *info = fbinfo->par;
|
||
|
|
||
|
enable_dma(CH_PPI);
|
||
|
bfin_t350mcqb_enable_ppi();
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
#else
|
||
|
#define bfin_t350mcqb_suspend NULL
|
||
|
#define bfin_t350mcqb_resume NULL
|
||
|
#endif
|
||
|
|
||
|
static struct platform_driver bfin_t350mcqb_driver = {
|
||
|
.probe = bfin_t350mcqb_probe,
|
||
|
.remove = bfin_t350mcqb_remove,
|
||
|
.suspend = bfin_t350mcqb_suspend,
|
||
|
.resume = bfin_t350mcqb_resume,
|
||
|
.driver = {
|
||
|
.name = DRIVER_NAME,
|
||
|
.owner = THIS_MODULE,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
static int __devinit bfin_t350mcqb_driver_init(void)
|
||
|
{
|
||
|
return platform_driver_register(&bfin_t350mcqb_driver);
|
||
|
}
|
||
|
|
||
|
static void __exit bfin_t350mcqb_driver_cleanup(void)
|
||
|
{
|
||
|
platform_driver_unregister(&bfin_t350mcqb_driver);
|
||
|
}
|
||
|
|
||
|
MODULE_DESCRIPTION("Blackfin TFT LCD Driver");
|
||
|
MODULE_LICENSE("GPL");
|
||
|
|
||
|
module_init(bfin_t350mcqb_driver_init);
|
||
|
module_exit(bfin_t350mcqb_driver_cleanup);
|