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@@ -1,6 +1,4 @@
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/*
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- * linux/drivers/video/imxfb.c
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- *
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* Freescale i.MX Frame Buffer device driver
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*
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* Copyright (C) 2004 Sascha Hauer, Pengutronix
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@@ -16,7 +14,6 @@
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* linux-arm-kernel@lists.arm.linux.org.uk
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*/
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-//#define DEBUG 1
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#include <linux/module.h>
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#include <linux/kernel.h>
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@@ -32,9 +29,8 @@
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#include <linux/cpufreq.h>
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#include <linux/platform_device.h>
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#include <linux/dma-mapping.h>
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+#include <linux/io.h>
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-#include <mach/hardware.h>
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-#include <asm/io.h>
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#include <mach/imxfb.h>
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/*
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@@ -42,23 +38,150 @@
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*/
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#define DEBUG_VAR 1
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-#include "imxfb.h"
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+#define DRIVER_NAME "imx-fb"
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+
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+#define LCDC_SSA 0x00
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+
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+#define LCDC_SIZE 0x04
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+#define SIZE_XMAX(x) ((((x) >> 4) & 0x3f) << 20)
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+#define SIZE_YMAX(y) ((y) & 0x1ff)
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+
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+#define LCDC_VPW 0x08
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+#define VPW_VPW(x) ((x) & 0x3ff)
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+
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+#define LCDC_CPOS 0x0C
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+#define CPOS_CC1 (1<<31)
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+#define CPOS_CC0 (1<<30)
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+#define CPOS_OP (1<<28)
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+#define CPOS_CXP(x) (((x) & 3ff) << 16)
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+#define CPOS_CYP(y) ((y) & 0x1ff)
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+
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+#define LCDC_LCWHB 0x10
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+#define LCWHB_BK_EN (1<<31)
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+#define LCWHB_CW(w) (((w) & 0x1f) << 24)
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+#define LCWHB_CH(h) (((h) & 0x1f) << 16)
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+#define LCWHB_BD(x) ((x) & 0xff)
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+
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+#define LCDC_LCHCC 0x14
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+#define LCHCC_CUR_COL_R(r) (((r) & 0x1f) << 11)
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+#define LCHCC_CUR_COL_G(g) (((g) & 0x3f) << 5)
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+#define LCHCC_CUR_COL_B(b) ((b) & 0x1f)
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+
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+#define LCDC_PCR 0x18
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+
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+#define LCDC_HCR 0x1C
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+#define HCR_H_WIDTH(x) (((x) & 0x3f) << 26)
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+#define HCR_H_WAIT_1(x) (((x) & 0xff) << 8)
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+#define HCR_H_WAIT_2(x) ((x) & 0xff)
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+
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+#define LCDC_VCR 0x20
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+#define VCR_V_WIDTH(x) (((x) & 0x3f) << 26)
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+#define VCR_V_WAIT_1(x) (((x) & 0xff) << 8)
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+#define VCR_V_WAIT_2(x) ((x) & 0xff)
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+
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+#define LCDC_POS 0x24
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+#define POS_POS(x) ((x) & 1f)
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+
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+#define LCDC_LSCR1 0x28
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+/* bit fields in imxfb.h */
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+
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+#define LCDC_PWMR 0x2C
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+/* bit fields in imxfb.h */
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+
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+#define LCDC_DMACR 0x30
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+/* bit fields in imxfb.h */
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+
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+#define LCDC_RMCR 0x34
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+#define RMCR_LCDC_EN (1<<1)
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+#define RMCR_SELF_REF (1<<0)
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+
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+#define LCDC_LCDICR 0x38
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+#define LCDICR_INT_SYN (1<<2)
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+#define LCDICR_INT_CON (1)
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+
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+#define LCDC_LCDISR 0x40
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+#define LCDISR_UDR_ERR (1<<3)
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+#define LCDISR_ERR_RES (1<<2)
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+#define LCDISR_EOF (1<<1)
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+#define LCDISR_BOF (1<<0)
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+
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+/*
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+ * These are the bitfields for each
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+ * display depth that we support.
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+ */
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+struct imxfb_rgb {
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+ struct fb_bitfield red;
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+ struct fb_bitfield green;
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+ struct fb_bitfield blue;
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+ struct fb_bitfield transp;
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+};
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+
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+struct imxfb_info {
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+ struct platform_device *pdev;
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+ void __iomem *regs;
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-static struct imxfb_rgb def_rgb_16 = {
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- .red = { .offset = 8, .length = 4, },
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- .green = { .offset = 4, .length = 4, },
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- .blue = { .offset = 0, .length = 4, },
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- .transp = { .offset = 0, .length = 0, },
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+ u_int max_bpp;
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+ u_int max_xres;
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+ u_int max_yres;
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+
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+ /*
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+ * These are the addresses we mapped
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+ * the framebuffer memory region to.
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+ */
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+ dma_addr_t map_dma;
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+ u_char *map_cpu;
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+ u_int map_size;
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+
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+ u_char *screen_cpu;
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+ dma_addr_t screen_dma;
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+ u_int palette_size;
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+
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+ dma_addr_t dbar1;
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+ dma_addr_t dbar2;
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+
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+ u_int pcr;
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+ u_int pwmr;
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+ u_int lscr1;
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+ u_int dmacr;
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+ u_int cmap_inverse:1,
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+ cmap_static:1,
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+ unused:30;
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+
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+ void (*lcd_power)(int);
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+ void (*backlight_power)(int);
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+};
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+
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+#define IMX_NAME "IMX"
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+
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+/*
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+ * Minimum X and Y resolutions
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+ */
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+#define MIN_XRES 64
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+#define MIN_YRES 64
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+
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+static struct imxfb_rgb def_rgb_16_tft = {
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+ .red = {.offset = 11, .length = 5,},
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+ .green = {.offset = 5, .length = 6,},
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+ .blue = {.offset = 0, .length = 5,},
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+ .transp = {.offset = 0, .length = 0,},
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+};
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+
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+static struct imxfb_rgb def_rgb_16_stn = {
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+ .red = {.offset = 8, .length = 4,},
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+ .green = {.offset = 4, .length = 4,},
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+ .blue = {.offset = 0, .length = 4,},
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+ .transp = {.offset = 0, .length = 0,},
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};
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static struct imxfb_rgb def_rgb_8 = {
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- .red = { .offset = 0, .length = 8, },
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- .green = { .offset = 0, .length = 8, },
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- .blue = { .offset = 0, .length = 8, },
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- .transp = { .offset = 0, .length = 0, },
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+ .red = {.offset = 0, .length = 8,},
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+ .green = {.offset = 0, .length = 8,},
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+ .blue = {.offset = 0, .length = 8,},
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+ .transp = {.offset = 0, .length = 0,},
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};
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-static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *info);
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+static int imxfb_activate_var(struct fb_var_screeninfo *var,
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+ struct fb_info *info);
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static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
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{
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@@ -67,10 +190,8 @@ static inline u_int chan_to_field(u_int chan, struct fb_bitfield *bf)
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return chan << bf->offset;
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}
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-#define LCDC_PALETTE(x) __REG2(IMX_LCDC_BASE+0x800, (x)<<2)
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-static int
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-imxfb_setpalettereg(u_int regno, u_int red, u_int green, u_int blue,
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- u_int trans, struct fb_info *info)
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+static int imxfb_setpalettereg(u_int regno, u_int red, u_int green, u_int blue,
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+ u_int trans, struct fb_info *info)
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{
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struct imxfb_info *fbi = info->par;
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u_int val, ret = 1;
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@@ -81,14 +202,13 @@ imxfb_setpalettereg(u_int regno, u_int red, u_int green, u_int blue,
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(CNVT_TOHW(green,4) << 4) |
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CNVT_TOHW(blue, 4);
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- LCDC_PALETTE(regno) = val;
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+ writel(val, fbi->regs + 0x800 + (regno << 2));
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ret = 0;
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}
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return ret;
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}
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-static int
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-imxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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+static int imxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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u_int trans, struct fb_info *info)
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{
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struct imxfb_info *fbi = info->par;
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@@ -148,11 +268,10 @@ imxfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
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* yres, xres_virtual, yres_virtual, xoffset, yoffset, grayscale,
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* bitfields, horizontal timing, vertical timing.
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*/
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-static int
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-imxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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+static int imxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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{
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struct imxfb_info *fbi = info->par;
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- int rgbidx;
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+ struct imxfb_rgb *rgb;
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if (var->xres < MIN_XRES)
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var->xres = MIN_XRES;
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@@ -168,23 +287,25 @@ imxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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pr_debug("var->bits_per_pixel=%d\n", var->bits_per_pixel);
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switch (var->bits_per_pixel) {
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case 16:
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- rgbidx = RGB_16;
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+ default:
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+ if (readl(fbi->regs + LCDC_PCR) & PCR_TFT)
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+ rgb = &def_rgb_16_tft;
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+ else
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+ rgb = &def_rgb_16_stn;
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break;
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case 8:
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- rgbidx = RGB_8;
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+ rgb = &def_rgb_8;
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break;
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- default:
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- rgbidx = RGB_16;
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}
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/*
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* Copy the RGB parameters for this display
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* from the machine specific parameters.
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*/
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- var->red = fbi->rgb[rgbidx]->red;
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- var->green = fbi->rgb[rgbidx]->green;
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- var->blue = fbi->rgb[rgbidx]->blue;
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- var->transp = fbi->rgb[rgbidx]->transp;
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+ var->red = rgb->red;
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+ var->green = rgb->green;
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+ var->blue = rgb->blue;
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+ var->transp = rgb->transp;
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pr_debug("RGBT length = %d:%d:%d:%d\n",
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var->red.length, var->green.length, var->blue.length,
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@@ -221,8 +342,7 @@ static int imxfb_set_par(struct fb_info *info)
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info->fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
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}
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- info->fix.line_length = var->xres_virtual *
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- var->bits_per_pixel / 8;
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+ info->fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
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fbi->palette_size = var->bits_per_pixel == 8 ? 256 : 16;
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imxfb_activate_var(var, info);
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@@ -235,22 +355,27 @@ static void imxfb_enable_controller(struct imxfb_info *fbi)
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pr_debug("Enabling LCD controller\n");
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/* initialize LCDC */
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- LCDC_RMCR &= ~RMCR_LCDC_EN; /* just to be safe... */
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+ writel(readl(fbi->regs + LCDC_RMCR) & ~RMCR_LCDC_EN,
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+ fbi->regs + LCDC_RMCR); /* just to be safe... */
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+
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+ writel(fbi->screen_dma, fbi->regs + LCDC_SSA);
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- LCDC_SSA = fbi->screen_dma;
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/* physical screen start address */
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- LCDC_VPW = VPW_VPW(fbi->max_xres * fbi->max_bpp / 8 / 4);
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+ writel(VPW_VPW(fbi->max_xres * fbi->max_bpp / 8 / 4),
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+ fbi->regs + LCDC_VPW);
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- LCDC_POS = 0x00000000; /* panning offset 0 (0 pixel offset) */
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+ /* panning offset 0 (0 pixel offset) */
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+ writel(0x00000000, fbi->regs + LCDC_POS);
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/* disable hardware cursor */
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- LCDC_CPOS &= ~(CPOS_CC0 | CPOS_CC1);
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+ writel(readl(fbi->regs + LCDC_CPOS) & ~(CPOS_CC0 | CPOS_CC1),
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+ fbi->regs + LCDC_CPOS);
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- LCDC_RMCR = RMCR_LCDC_EN;
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+ writel(RMCR_LCDC_EN, fbi->regs + LCDC_RMCR);
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- if(fbi->backlight_power)
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+ if (fbi->backlight_power)
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fbi->backlight_power(1);
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- if(fbi->lcd_power)
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+ if (fbi->lcd_power)
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fbi->lcd_power(1);
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}
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@@ -258,12 +383,12 @@ static void imxfb_disable_controller(struct imxfb_info *fbi)
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{
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pr_debug("Disabling LCD controller\n");
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- if(fbi->backlight_power)
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+ if (fbi->backlight_power)
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fbi->backlight_power(0);
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- if(fbi->lcd_power)
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+ if (fbi->lcd_power)
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fbi->lcd_power(0);
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- LCDC_RMCR = 0;
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+ writel(0, fbi->regs + LCDC_RMCR);
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}
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static int imxfb_blank(int blank, struct fb_info *info)
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@@ -340,74 +465,26 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
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info->fix.id, var->lower_margin);
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#endif
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- LCDC_HCR = HCR_H_WIDTH(var->hsync_len) |
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- HCR_H_WAIT_1(var->left_margin) |
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- HCR_H_WAIT_2(var->right_margin);
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+ writel(HCR_H_WIDTH(var->hsync_len) |
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+ HCR_H_WAIT_1(var->right_margin) |
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+ HCR_H_WAIT_2(var->left_margin),
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+ fbi->regs + LCDC_HCR);
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- LCDC_VCR = VCR_V_WIDTH(var->vsync_len) |
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- VCR_V_WAIT_1(var->upper_margin) |
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- VCR_V_WAIT_2(var->lower_margin);
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+ writel(VCR_V_WIDTH(var->vsync_len) |
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+ VCR_V_WAIT_1(var->lower_margin) |
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+ VCR_V_WAIT_2(var->upper_margin),
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+ fbi->regs + LCDC_VCR);
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- LCDC_SIZE = SIZE_XMAX(var->xres) | SIZE_YMAX(var->yres);
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- LCDC_PCR = fbi->pcr;
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- LCDC_PWMR = fbi->pwmr;
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- LCDC_LSCR1 = fbi->lscr1;
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- LCDC_DMACR = fbi->dmacr;
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+ writel(SIZE_XMAX(var->xres) | SIZE_YMAX(var->yres),
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+ fbi->regs + LCDC_SIZE);
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+ writel(fbi->pcr, fbi->regs + LCDC_PCR);
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+ writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
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+ writel(fbi->lscr1, fbi->regs + LCDC_LSCR1);
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+ writel(fbi->dmacr, fbi->regs + LCDC_DMACR);
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return 0;
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}
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-static void imxfb_setup_gpio(struct imxfb_info *fbi)
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-{
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- int width;
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-
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- LCDC_RMCR &= ~(RMCR_LCDC_EN | RMCR_SELF_REF);
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-
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- if( fbi->pcr & PCR_TFT )
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- width = 16;
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- else
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- width = 1 << ((fbi->pcr >> 28) & 0x3);
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-
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- switch(width) {
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- case 16:
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- imx_gpio_mode(PD30_PF_LD15);
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- imx_gpio_mode(PD29_PF_LD14);
|
|
|
- imx_gpio_mode(PD28_PF_LD13);
|
|
|
- imx_gpio_mode(PD27_PF_LD12);
|
|
|
- imx_gpio_mode(PD26_PF_LD11);
|
|
|
- imx_gpio_mode(PD25_PF_LD10);
|
|
|
- imx_gpio_mode(PD24_PF_LD9);
|
|
|
- imx_gpio_mode(PD23_PF_LD8);
|
|
|
- case 8:
|
|
|
- imx_gpio_mode(PD22_PF_LD7);
|
|
|
- imx_gpio_mode(PD21_PF_LD6);
|
|
|
- imx_gpio_mode(PD20_PF_LD5);
|
|
|
- imx_gpio_mode(PD19_PF_LD4);
|
|
|
- case 4:
|
|
|
- imx_gpio_mode(PD18_PF_LD3);
|
|
|
- imx_gpio_mode(PD17_PF_LD2);
|
|
|
- case 2:
|
|
|
- imx_gpio_mode(PD16_PF_LD1);
|
|
|
- case 1:
|
|
|
- imx_gpio_mode(PD15_PF_LD0);
|
|
|
- }
|
|
|
-
|
|
|
- /* initialize GPIOs */
|
|
|
- imx_gpio_mode(PD6_PF_LSCLK);
|
|
|
- imx_gpio_mode(PD11_PF_CONTRAST);
|
|
|
- imx_gpio_mode(PD14_PF_FLM_VSYNC);
|
|
|
- imx_gpio_mode(PD13_PF_LP_HSYNC);
|
|
|
- imx_gpio_mode(PD12_PF_ACD_OE);
|
|
|
-
|
|
|
- /* These are only needed for Sharp HR TFT displays */
|
|
|
- if (fbi->pcr & PCR_SHARP) {
|
|
|
- imx_gpio_mode(PD7_PF_REV);
|
|
|
- imx_gpio_mode(PD8_PF_CLS);
|
|
|
- imx_gpio_mode(PD9_PF_PS);
|
|
|
- imx_gpio_mode(PD10_PF_SPL_SPR);
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
#ifdef CONFIG_PM
|
|
|
/*
|
|
|
* Power management hooks. Note that we won't be called from IRQ context,
|
|
@@ -416,7 +493,8 @@ static void imxfb_setup_gpio(struct imxfb_info *fbi)
|
|
|
static int imxfb_suspend(struct platform_device *dev, pm_message_t state)
|
|
|
{
|
|
|
struct imxfb_info *fbi = platform_get_drvdata(dev);
|
|
|
- pr_debug("%s\n",__func__);
|
|
|
+
|
|
|
+ pr_debug("%s\n", __func__);
|
|
|
|
|
|
imxfb_disable_controller(fbi);
|
|
|
return 0;
|
|
@@ -425,7 +503,8 @@ static int imxfb_suspend(struct platform_device *dev, pm_message_t state)
|
|
|
static int imxfb_resume(struct platform_device *dev)
|
|
|
{
|
|
|
struct imxfb_info *fbi = platform_get_drvdata(dev);
|
|
|
- pr_debug("%s\n",__func__);
|
|
|
+
|
|
|
+ pr_debug("%s\n", __func__);
|
|
|
|
|
|
imxfb_enable_controller(fbi);
|
|
|
return 0;
|
|
@@ -435,149 +514,136 @@ static int imxfb_resume(struct platform_device *dev)
|
|
|
#define imxfb_resume NULL
|
|
|
#endif
|
|
|
|
|
|
-static int __init imxfb_init_fbinfo(struct device *dev)
|
|
|
+static int __init imxfb_init_fbinfo(struct platform_device *pdev)
|
|
|
{
|
|
|
- struct imxfb_mach_info *inf = dev->platform_data;
|
|
|
- struct fb_info *info = dev_get_drvdata(dev);
|
|
|
+ struct imx_fb_platform_data *pdata = pdev->dev.platform_data;
|
|
|
+ struct fb_info *info = dev_get_drvdata(&pdev->dev);
|
|
|
struct imxfb_info *fbi = info->par;
|
|
|
|
|
|
pr_debug("%s\n",__func__);
|
|
|
|
|
|
- info->pseudo_palette = kmalloc( sizeof(u32) * 16, GFP_KERNEL);
|
|
|
+ info->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
|
|
|
if (!info->pseudo_palette)
|
|
|
return -ENOMEM;
|
|
|
|
|
|
memset(fbi, 0, sizeof(struct imxfb_info));
|
|
|
- fbi->dev = dev;
|
|
|
|
|
|
strlcpy(info->fix.id, IMX_NAME, sizeof(info->fix.id));
|
|
|
|
|
|
- info->fix.type = FB_TYPE_PACKED_PIXELS;
|
|
|
+ info->fix.type = FB_TYPE_PACKED_PIXELS;
|
|
|
info->fix.type_aux = 0;
|
|
|
info->fix.xpanstep = 0;
|
|
|
info->fix.ypanstep = 0;
|
|
|
info->fix.ywrapstep = 0;
|
|
|
- info->fix.accel = FB_ACCEL_NONE;
|
|
|
+ info->fix.accel = FB_ACCEL_NONE;
|
|
|
|
|
|
info->var.nonstd = 0;
|
|
|
info->var.activate = FB_ACTIVATE_NOW;
|
|
|
info->var.height = -1;
|
|
|
info->var.width = -1;
|
|
|
info->var.accel_flags = 0;
|
|
|
- info->var.vmode = FB_VMODE_NONINTERLACED;
|
|
|
+ info->var.vmode = FB_VMODE_NONINTERLACED;
|
|
|
|
|
|
info->fbops = &imxfb_ops;
|
|
|
- info->flags = FBINFO_FLAG_DEFAULT | FBINFO_READS_FAST;
|
|
|
-
|
|
|
- fbi->rgb[RGB_16] = &def_rgb_16;
|
|
|
- fbi->rgb[RGB_8] = &def_rgb_8;
|
|
|
-
|
|
|
- fbi->max_xres = inf->xres;
|
|
|
- info->var.xres = inf->xres;
|
|
|
- info->var.xres_virtual = inf->xres;
|
|
|
- fbi->max_yres = inf->yres;
|
|
|
- info->var.yres = inf->yres;
|
|
|
- info->var.yres_virtual = inf->yres;
|
|
|
- fbi->max_bpp = inf->bpp;
|
|
|
- info->var.bits_per_pixel = inf->bpp;
|
|
|
- info->var.nonstd = inf->nonstd;
|
|
|
- info->var.pixclock = inf->pixclock;
|
|
|
- info->var.hsync_len = inf->hsync_len;
|
|
|
- info->var.left_margin = inf->left_margin;
|
|
|
- info->var.right_margin = inf->right_margin;
|
|
|
- info->var.vsync_len = inf->vsync_len;
|
|
|
- info->var.upper_margin = inf->upper_margin;
|
|
|
- info->var.lower_margin = inf->lower_margin;
|
|
|
- info->var.sync = inf->sync;
|
|
|
- info->var.grayscale = inf->cmap_greyscale;
|
|
|
- fbi->cmap_inverse = inf->cmap_inverse;
|
|
|
- fbi->cmap_static = inf->cmap_static;
|
|
|
- fbi->pcr = inf->pcr;
|
|
|
- fbi->lscr1 = inf->lscr1;
|
|
|
- fbi->dmacr = inf->dmacr;
|
|
|
- fbi->pwmr = inf->pwmr;
|
|
|
- fbi->lcd_power = inf->lcd_power;
|
|
|
- fbi->backlight_power = inf->backlight_power;
|
|
|
+ info->flags = FBINFO_FLAG_DEFAULT |
|
|
|
+ FBINFO_READS_FAST;
|
|
|
+
|
|
|
+ fbi->max_xres = pdata->xres;
|
|
|
+ info->var.xres = pdata->xres;
|
|
|
+ info->var.xres_virtual = pdata->xres;
|
|
|
+ fbi->max_yres = pdata->yres;
|
|
|
+ info->var.yres = pdata->yres;
|
|
|
+ info->var.yres_virtual = pdata->yres;
|
|
|
+ fbi->max_bpp = pdata->bpp;
|
|
|
+ info->var.bits_per_pixel = pdata->bpp;
|
|
|
+ info->var.nonstd = pdata->nonstd;
|
|
|
+ info->var.pixclock = pdata->pixclock;
|
|
|
+ info->var.hsync_len = pdata->hsync_len;
|
|
|
+ info->var.left_margin = pdata->left_margin;
|
|
|
+ info->var.right_margin = pdata->right_margin;
|
|
|
+ info->var.vsync_len = pdata->vsync_len;
|
|
|
+ info->var.upper_margin = pdata->upper_margin;
|
|
|
+ info->var.lower_margin = pdata->lower_margin;
|
|
|
+ info->var.sync = pdata->sync;
|
|
|
+ info->var.grayscale = pdata->cmap_greyscale;
|
|
|
+ fbi->cmap_inverse = pdata->cmap_inverse;
|
|
|
+ fbi->cmap_static = pdata->cmap_static;
|
|
|
+ fbi->pcr = pdata->pcr;
|
|
|
+ fbi->lscr1 = pdata->lscr1;
|
|
|
+ fbi->dmacr = pdata->dmacr;
|
|
|
+ fbi->pwmr = pdata->pwmr;
|
|
|
+ fbi->lcd_power = pdata->lcd_power;
|
|
|
+ fbi->backlight_power = pdata->backlight_power;
|
|
|
info->fix.smem_len = fbi->max_xres * fbi->max_yres *
|
|
|
fbi->max_bpp / 8;
|
|
|
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
-/*
|
|
|
- * Allocates the DRAM memory for the frame buffer. This buffer is
|
|
|
- * remapped into a non-cached, non-buffered, memory region to
|
|
|
- * allow pixel writes to occur without flushing the cache.
|
|
|
- * Once this area is remapped, all virtual memory access to the
|
|
|
- * video memory should occur at the new region.
|
|
|
- */
|
|
|
-static int __init imxfb_map_video_memory(struct fb_info *info)
|
|
|
-{
|
|
|
- struct imxfb_info *fbi = info->par;
|
|
|
-
|
|
|
- fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
|
|
|
- fbi->map_cpu = dma_alloc_writecombine(fbi->dev, fbi->map_size,
|
|
|
- &fbi->map_dma,GFP_KERNEL);
|
|
|
-
|
|
|
- if (fbi->map_cpu) {
|
|
|
- info->screen_base = fbi->map_cpu;
|
|
|
- fbi->screen_cpu = fbi->map_cpu;
|
|
|
- fbi->screen_dma = fbi->map_dma;
|
|
|
- info->fix.smem_start = fbi->screen_dma;
|
|
|
- }
|
|
|
-
|
|
|
- return fbi->map_cpu ? 0 : -ENOMEM;
|
|
|
-}
|
|
|
-
|
|
|
static int __init imxfb_probe(struct platform_device *pdev)
|
|
|
{
|
|
|
struct imxfb_info *fbi;
|
|
|
struct fb_info *info;
|
|
|
- struct imxfb_mach_info *inf;
|
|
|
+ struct imx_fb_platform_data *pdata;
|
|
|
struct resource *res;
|
|
|
int ret;
|
|
|
|
|
|
printk("i.MX Framebuffer driver\n");
|
|
|
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
|
- if(!res)
|
|
|
+ if (!res)
|
|
|
return -ENODEV;
|
|
|
|
|
|
- inf = pdev->dev.platform_data;
|
|
|
- if(!inf) {
|
|
|
+ pdata = pdev->dev.platform_data;
|
|
|
+ if (!pdata) {
|
|
|
dev_err(&pdev->dev,"No platform_data available\n");
|
|
|
return -ENOMEM;
|
|
|
}
|
|
|
|
|
|
info = framebuffer_alloc(sizeof(struct imxfb_info), &pdev->dev);
|
|
|
- if(!info)
|
|
|
+ if (!info)
|
|
|
return -ENOMEM;
|
|
|
|
|
|
fbi = info->par;
|
|
|
|
|
|
platform_set_drvdata(pdev, info);
|
|
|
|
|
|
- ret = imxfb_init_fbinfo(&pdev->dev);
|
|
|
- if( ret < 0 )
|
|
|
+ ret = imxfb_init_fbinfo(pdev);
|
|
|
+ if (ret < 0)
|
|
|
goto failed_init;
|
|
|
|
|
|
- res = request_mem_region(res->start, res->end - res->start + 1, "IMXFB");
|
|
|
+ res = request_mem_region(res->start, resource_size(res),
|
|
|
+ DRIVER_NAME);
|
|
|
if (!res) {
|
|
|
ret = -EBUSY;
|
|
|
- goto failed_regs;
|
|
|
+ goto failed_req;
|
|
|
+ }
|
|
|
+
|
|
|
+ fbi->regs = ioremap(res->start, resource_size(res));
|
|
|
+ if (fbi->regs == NULL) {
|
|
|
+ printk(KERN_ERR"Cannot map frame buffer registers\n");
|
|
|
+ goto failed_ioremap;
|
|
|
}
|
|
|
|
|
|
- if (!inf->fixed_screen_cpu) {
|
|
|
- ret = imxfb_map_video_memory(info);
|
|
|
- if (ret) {
|
|
|
+ if (!pdata->fixed_screen_cpu) {
|
|
|
+ fbi->map_size = PAGE_ALIGN(info->fix.smem_len);
|
|
|
+ fbi->map_cpu = dma_alloc_writecombine(&pdev->dev,
|
|
|
+ fbi->map_size, &fbi->map_dma, GFP_KERNEL);
|
|
|
+
|
|
|
+ if (!fbi->map_cpu) {
|
|
|
dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret);
|
|
|
ret = -ENOMEM;
|
|
|
goto failed_map;
|
|
|
}
|
|
|
+
|
|
|
+ info->screen_base = fbi->map_cpu;
|
|
|
+ fbi->screen_cpu = fbi->map_cpu;
|
|
|
+ fbi->screen_dma = fbi->map_dma;
|
|
|
+ info->fix.smem_start = fbi->screen_dma;
|
|
|
} else {
|
|
|
/* Fixed framebuffer mapping enables location of the screen in eSRAM */
|
|
|
- fbi->map_cpu = inf->fixed_screen_cpu;
|
|
|
- fbi->map_dma = inf->fixed_screen_dma;
|
|
|
+ fbi->map_cpu = pdata->fixed_screen_cpu;
|
|
|
+ fbi->map_dma = pdata->fixed_screen_dma;
|
|
|
info->screen_base = fbi->map_cpu;
|
|
|
fbi->screen_cpu = fbi->map_cpu;
|
|
|
fbi->screen_dma = fbi->map_dma;
|
|
@@ -590,12 +656,10 @@ static int __init imxfb_probe(struct platform_device *pdev)
|
|
|
*/
|
|
|
imxfb_check_var(&info->var, info);
|
|
|
|
|
|
- ret = fb_alloc_cmap(&info->cmap, 1<<info->var.bits_per_pixel, 0);
|
|
|
+ ret = fb_alloc_cmap(&info->cmap, 1 << info->var.bits_per_pixel, 0);
|
|
|
if (ret < 0)
|
|
|
goto failed_cmap;
|
|
|
|
|
|
- imxfb_setup_gpio(fbi);
|
|
|
-
|
|
|
imxfb_set_par(info);
|
|
|
ret = register_framebuffer(info);
|
|
|
if (ret < 0) {
|
|
@@ -610,20 +674,22 @@ static int __init imxfb_probe(struct platform_device *pdev)
|
|
|
failed_register:
|
|
|
fb_dealloc_cmap(&info->cmap);
|
|
|
failed_cmap:
|
|
|
- if (!inf->fixed_screen_cpu)
|
|
|
+ if (!pdata->fixed_screen_cpu)
|
|
|
dma_free_writecombine(&pdev->dev,fbi->map_size,fbi->map_cpu,
|
|
|
- fbi->map_dma);
|
|
|
+ fbi->map_dma);
|
|
|
failed_map:
|
|
|
- kfree(info->pseudo_palette);
|
|
|
-failed_regs:
|
|
|
+ iounmap(fbi->regs);
|
|
|
+failed_ioremap:
|
|
|
release_mem_region(res->start, res->end - res->start);
|
|
|
+failed_req:
|
|
|
+ kfree(info->pseudo_palette);
|
|
|
failed_init:
|
|
|
platform_set_drvdata(pdev, NULL);
|
|
|
framebuffer_release(info);
|
|
|
return ret;
|
|
|
}
|
|
|
|
|
|
-static int imxfb_remove(struct platform_device *pdev)
|
|
|
+static int __devexit imxfb_remove(struct platform_device *pdev)
|
|
|
{
|
|
|
struct fb_info *info = platform_get_drvdata(pdev);
|
|
|
struct imxfb_info *fbi = info->par;
|
|
@@ -639,6 +705,7 @@ static int imxfb_remove(struct platform_device *pdev)
|
|
|
kfree(info->pseudo_palette);
|
|
|
framebuffer_release(info);
|
|
|
|
|
|
+ iounmap(fbi->regs);
|
|
|
release_mem_region(res->start, res->end - res->start + 1);
|
|
|
platform_set_drvdata(pdev, NULL);
|
|
|
|
|
@@ -653,19 +720,18 @@ void imxfb_shutdown(struct platform_device * dev)
|
|
|
}
|
|
|
|
|
|
static struct platform_driver imxfb_driver = {
|
|
|
- .probe = imxfb_probe,
|
|
|
.suspend = imxfb_suspend,
|
|
|
.resume = imxfb_resume,
|
|
|
- .remove = imxfb_remove,
|
|
|
+ .remove = __devexit_p(imxfb_remove),
|
|
|
.shutdown = imxfb_shutdown,
|
|
|
.driver = {
|
|
|
- .name = "imx-fb",
|
|
|
+ .name = DRIVER_NAME,
|
|
|
},
|
|
|
};
|
|
|
|
|
|
int __init imxfb_init(void)
|
|
|
{
|
|
|
- return platform_driver_register(&imxfb_driver);
|
|
|
+ return platform_driver_probe(&imxfb_driver, imxfb_probe);
|
|
|
}
|
|
|
|
|
|
static void __exit imxfb_cleanup(void)
|