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-rw-r--r--target/linux/xburst/patches-2.6.34/051-fb.patch941
1 files changed, 0 insertions, 941 deletions
diff --git a/target/linux/xburst/patches-2.6.34/051-fb.patch b/target/linux/xburst/patches-2.6.34/051-fb.patch
deleted file mode 100644
index 9464562f3c..0000000000
--- a/target/linux/xburst/patches-2.6.34/051-fb.patch
+++ /dev/null
@@ -1,941 +0,0 @@
-From bde0c6e017734b3164f5e3517d8e9373433b0cee Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 24 Apr 2010 12:13:58 +0200
-Subject: [PATCH] Add jz4740 framebuffer driver
-
----
- drivers/video/Kconfig | 9 +
- drivers/video/Makefile | 1 +
- drivers/video/jz4740_fb.c | 822 +++++++++++++++++++++++++++++++++++++++++++++
- include/linux/jz4740_fb.h | 58 ++++
- 4 files changed, 890 insertions(+), 0 deletions(-)
- create mode 100644 drivers/video/jz4740_fb.c
- create mode 100644 include/linux/jz4740_fb.h
-
-diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
-index 6e16244..14647f0 100644
---- a/drivers/video/Kconfig
-+++ b/drivers/video/Kconfig
-@@ -2214,6 +2214,15 @@ config FB_BROADSHEET
- and could also have been called by other names when coupled with
- a bridge adapter.
-
-+config FB_JZ4740
-+ tristate "JZ47420/JZ4740 LCD framebuffer support"
-+ depends on FB
-+ select FB_SYS_FILLRECT
-+ select FB_SYS_COPYAREA
-+ select FB_SYS_IMAGEBLIT
-+ help
-+ Framebuffer support for the JZ4720 and JZ4740 SoC.
-+
- source "drivers/video/omap/Kconfig"
- source "drivers/video/omap2/Kconfig"
-
-diff --git a/drivers/video/Makefile b/drivers/video/Makefile
-index ddc2af2..f56a9ca 100644
---- a/drivers/video/Makefile
-+++ b/drivers/video/Makefile
-@@ -131,6 +131,7 @@ obj-$(CONFIG_FB_CARMINE) += carminefb.o
- obj-$(CONFIG_FB_MB862XX) += mb862xx/
- obj-$(CONFIG_FB_MSM) += msm/
- obj-$(CONFIG_FB_NUC900) += nuc900fb.o
-+obj-$(CONFIG_FB_JZ4740) += jz4740_fb.o
-
- # Platform or fallback drivers go here
- obj-$(CONFIG_FB_UVESA) += uvesafb.o
-diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
-new file mode 100644
-index 0000000..8bb0cb4
---- /dev/null
-+++ b/drivers/video/jz4740_fb.c
-@@ -0,0 +1,822 @@
-+/*
-+ * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
-+ * JZ4740 SoC LCD framebuffer driver
-+ *
-+ * 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.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ *
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/mutex.h>
-+#include <linux/platform_device.h>
-+
-+#include <linux/clk.h>
-+#include <linux/delay.h>
-+
-+#include <linux/console.h>
-+#include <linux/fb.h>
-+
-+#include <linux/dma-mapping.h>
-+
-+#include <linux/jz4740_fb.h>
-+#include <asm/mach-jz4740/gpio.h>
-+
-+#define JZ_REG_LCD_CFG 0x00
-+#define JZ_REG_LCD_VSYNC 0x04
-+#define JZ_REG_LCD_HSYNC 0x08
-+#define JZ_REG_LCD_VAT 0x0C
-+#define JZ_REG_LCD_DAH 0x10
-+#define JZ_REG_LCD_DAV 0x14
-+#define JZ_REG_LCD_PS 0x18
-+#define JZ_REG_LCD_CLS 0x1C
-+#define JZ_REG_LCD_SPL 0x20
-+#define JZ_REG_LCD_REV 0x24
-+#define JZ_REG_LCD_CTRL 0x30
-+#define JZ_REG_LCD_STATE 0x34
-+#define JZ_REG_LCD_IID 0x38
-+#define JZ_REG_LCD_DA0 0x40
-+#define JZ_REG_LCD_SA0 0x44
-+#define JZ_REG_LCD_FID0 0x48
-+#define JZ_REG_LCD_CMD0 0x4C
-+#define JZ_REG_LCD_DA1 0x50
-+#define JZ_REG_LCD_SA1 0x54
-+#define JZ_REG_LCD_FID1 0x58
-+#define JZ_REG_LCD_CMD1 0x5C
-+
-+#define JZ_LCD_CFG_SLCD BIT(31)
-+#define JZ_LCD_CFG_PS_DISABLE BIT(23)
-+#define JZ_LCD_CFG_CLS_DISABLE BIT(22)
-+#define JZ_LCD_CFG_SPL_DISABLE BIT(21)
-+#define JZ_LCD_CFG_REV_DISABLE BIT(20)
-+#define JZ_LCD_CFG_HSYNCM BIT(19)
-+#define JZ_LCD_CFG_PCLKM BIT(18)
-+#define JZ_LCD_CFG_INV BIT(17)
-+#define JZ_LCD_CFG_SYNC_DIR BIT(16)
-+#define JZ_LCD_CFG_PS_POLARITY BIT(15)
-+#define JZ_LCD_CFG_CLS_POLARITY BIT(14)
-+#define JZ_LCD_CFG_SPL_POLARITY BIT(13)
-+#define JZ_LCD_CFG_REV_POLARITY BIT(12)
-+#define JZ_LCD_CFG_HSYNC_ACTIVE_LOW BIT(11)
-+#define JZ_LCD_CFG_PCLK_FALLING_EDGE BIT(10)
-+#define JZ_LCD_CFG_DE_ACTIVE_LOW BIT(9)
-+#define JZ_LCD_CFG_VSYNC_ACTIVE_LOW BIT(8)
-+#define JZ_LCD_CFG_18_BIT BIT(7)
-+#define JZ_LCD_CFG_PDW (BIT(5) | BIT(4))
-+#define JZ_LCD_CFG_MODE_MASK 0xf
-+
-+#define JZ_LCD_CTRL_BURST_4 (0x0 << 28)
-+#define JZ_LCD_CTRL_BURST_8 (0x1 << 28)
-+#define JZ_LCD_CTRL_BURST_16 (0x2 << 28)
-+#define JZ_LCD_CTRL_RGB555 BIT(27)
-+#define JZ_LCD_CTRL_OFUP BIT(26)
-+#define JZ_LCD_CTRL_FRC_GRAYSCALE_16 (0x0 << 24)
-+#define JZ_LCD_CTRL_FRC_GRAYSCALE_4 (0x1 << 24)
-+#define JZ_LCD_CTRL_FRC_GRAYSCALE_2 (0x2 << 24)
-+#define JZ_LCD_CTRL_PDD_MASK (0xff << 16)
-+#define JZ_LCD_CTRL_EOF_IRQ BIT(13)
-+#define JZ_LCD_CTRL_SOF_IRQ BIT(12)
-+#define JZ_LCD_CTRL_OFU_IRQ BIT(11)
-+#define JZ_LCD_CTRL_IFU0_IRQ BIT(10)
-+#define JZ_LCD_CTRL_IFU1_IRQ BIT(9)
-+#define JZ_LCD_CTRL_DD_IRQ BIT(8)
-+#define JZ_LCD_CTRL_QDD_IRQ BIT(7)
-+#define JZ_LCD_CTRL_REVERSE_ENDIAN BIT(6)
-+#define JZ_LCD_CTRL_LSB_FISRT BIT(5)
-+#define JZ_LCD_CTRL_DISABLE BIT(4)
-+#define JZ_LCD_CTRL_ENABLE BIT(3)
-+#define JZ_LCD_CTRL_BPP_1 0x0
-+#define JZ_LCD_CTRL_BPP_2 0x1
-+#define JZ_LCD_CTRL_BPP_4 0x2
-+#define JZ_LCD_CTRL_BPP_8 0x3
-+#define JZ_LCD_CTRL_BPP_15_16 0x4
-+#define JZ_LCD_CTRL_BPP_18_24 0x5
-+
-+#define JZ_LCD_CMD_SOF_IRQ BIT(15)
-+#define JZ_LCD_CMD_EOF_IRQ BIT(16)
-+#define JZ_LCD_CMD_ENABLE_PAL BIT(12)
-+
-+#define JZ_LCD_SYNC_MASK 0x3ff
-+
-+#define JZ_LCD_STATE_DISABLED BIT(0)
-+
-+struct jzfb_framedesc {
-+ uint32_t next;
-+ uint32_t addr;
-+ uint32_t id;
-+ uint32_t cmd;
-+} __attribute__((packed));
-+
-+struct jzfb {
-+ struct fb_info *fb;
-+ struct platform_device *pdev;
-+ void __iomem *base;
-+ struct resource *mem;
-+ struct jz4740_fb_platform_data *pdata;
-+
-+ size_t vidmem_size;
-+ void *vidmem;
-+ dma_addr_t vidmem_phys;
-+ struct jzfb_framedesc *framedesc;
-+ dma_addr_t framedesc_phys;
-+
-+ struct clk *ldclk;
-+ struct clk *lpclk;
-+
-+ unsigned is_enabled:1;
-+ struct mutex lock;
-+
-+ uint32_t pseudo_palette[16];
-+};
-+
-+static struct fb_fix_screeninfo jzfb_fix __devinitdata = {
-+ .id = "JZ4740 FB",
-+ .type = FB_TYPE_PACKED_PIXELS,
-+ .visual = FB_VISUAL_TRUECOLOR,
-+ .xpanstep = 0,
-+ .ypanstep = 0,
-+ .ywrapstep = 0,
-+ .accel = FB_ACCEL_NONE,
-+};
-+
-+const static struct jz_gpio_bulk_request jz_lcd_ctrl_pins[] = {
-+ JZ_GPIO_BULK_PIN(LCD_PCLK),
-+ JZ_GPIO_BULK_PIN(LCD_HSYNC),
-+ JZ_GPIO_BULK_PIN(LCD_VSYNC),
-+ JZ_GPIO_BULK_PIN(LCD_DE),
-+ JZ_GPIO_BULK_PIN(LCD_PS),
-+ JZ_GPIO_BULK_PIN(LCD_REV),
-+};
-+
-+const static struct jz_gpio_bulk_request jz_lcd_data_pins[] = {
-+ JZ_GPIO_BULK_PIN(LCD_DATA0),
-+ JZ_GPIO_BULK_PIN(LCD_DATA1),
-+ JZ_GPIO_BULK_PIN(LCD_DATA2),
-+ JZ_GPIO_BULK_PIN(LCD_DATA3),
-+ JZ_GPIO_BULK_PIN(LCD_DATA4),
-+ JZ_GPIO_BULK_PIN(LCD_DATA5),
-+ JZ_GPIO_BULK_PIN(LCD_DATA6),
-+ JZ_GPIO_BULK_PIN(LCD_DATA7),
-+ JZ_GPIO_BULK_PIN(LCD_DATA8),
-+ JZ_GPIO_BULK_PIN(LCD_DATA9),
-+ JZ_GPIO_BULK_PIN(LCD_DATA10),
-+ JZ_GPIO_BULK_PIN(LCD_DATA11),
-+ JZ_GPIO_BULK_PIN(LCD_DATA12),
-+ JZ_GPIO_BULK_PIN(LCD_DATA13),
-+ JZ_GPIO_BULK_PIN(LCD_DATA14),
-+ JZ_GPIO_BULK_PIN(LCD_DATA15),
-+ JZ_GPIO_BULK_PIN(LCD_DATA16),
-+ JZ_GPIO_BULK_PIN(LCD_DATA17),
-+};
-+
-+static unsigned int jzfb_num_ctrl_pins(struct jzfb *jzfb)
-+{
-+ unsigned int num;
-+
-+ switch (jzfb->pdata->lcd_type) {
-+ case JZ_LCD_TYPE_GENERIC_16_BIT:
-+ num = 4;
-+ break;
-+ case JZ_LCD_TYPE_GENERIC_18_BIT:
-+ num = 4;
-+ break;
-+ case JZ_LCD_TYPE_8BIT_SERIAL:
-+ num = 3;
-+ break;
-+ default:
-+ num = 0;
-+ break;
-+ }
-+ return num;
-+}
-+
-+static unsigned int jzfb_num_data_pins(struct jzfb *jzfb)
-+{
-+ unsigned int num;
-+
-+ switch (jzfb->pdata->lcd_type) {
-+ case JZ_LCD_TYPE_GENERIC_16_BIT:
-+ num = 16;
-+ break;
-+ case JZ_LCD_TYPE_GENERIC_18_BIT:
-+ num = 18;
-+ break;
-+ case JZ_LCD_TYPE_8BIT_SERIAL:
-+ num = 8;
-+ break;
-+ default:
-+ num = 0;
-+ break;
-+ }
-+ return num;
-+}
-+
-+static int jzfb_setcolreg(unsigned regno, unsigned red, unsigned green,
-+ unsigned blue, unsigned transp, struct fb_info *fb)
-+{
-+ uint32_t color;
-+
-+ if (regno >= 16)
-+ return -EINVAL;
-+
-+#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
-+ red = CNVT_TOHW(red, fb->var.red.length);
-+ green = CNVT_TOHW(green, fb->var.green.length);
-+ blue = CNVT_TOHW(blue, fb->var.blue.length);
-+ transp = CNVT_TOHW(transp, fb->var.transp.length);
-+#undef CNVT_TOHW
-+
-+ color = (red << fb->var.red.offset) |
-+ (green << fb->var.green.offset) |
-+ (blue << fb->var.blue.offset) |
-+ (transp << fb->var.transp.offset);
-+
-+ ((uint32_t*)(fb->pseudo_palette))[regno] = color;
-+
-+ return 0;
-+}
-+
-+static int jzfb_get_controller_bpp(struct jzfb *jzfb)
-+{
-+ switch (jzfb->pdata->bpp) {
-+ case 18:
-+ case 24:
-+ return 32;
-+ case 15:
-+ return 16;
-+ default:
-+ return jzfb->pdata->bpp;
-+ }
-+}
-+
-+static struct fb_videomode *jzfb_get_mode(struct jzfb *jzfb, struct fb_var_screeninfo *var)
-+{
-+ size_t i;
-+ struct fb_videomode *mode = jzfb->pdata->modes;
-+
-+ for (i = 0; i < jzfb->pdata->num_modes; ++i, ++mode) {
-+ if (mode->xres == var->xres && mode->yres == var->yres)
-+ return mode;
-+ }
-+
-+ return NULL;
-+}
-+
-+static int jzfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fb)
-+{
-+ struct jzfb *jzfb = fb->par;
-+ struct fb_videomode *mode;
-+
-+ if (var->bits_per_pixel != jzfb_get_controller_bpp(jzfb) &&
-+ var->bits_per_pixel != jzfb->pdata->bpp)
-+ return -EINVAL;
-+
-+ mode = jzfb_get_mode(jzfb, var);
-+ if (mode == NULL)
-+ return -EINVAL;
-+
-+ fb_videomode_to_var(var, mode);
-+
-+ switch (jzfb->pdata->bpp) {
-+ case 8:
-+ break;
-+ case 15:
-+ var->red.offset = 10;
-+ var->red.length = 5;
-+ var->green.offset = 6;
-+ var->green.length = 5;
-+ var->blue.offset = 0;
-+ var->blue.length = 5;
-+ break;
-+ case 16:
-+ var->red.offset = 11;
-+ var->red.length = 5;
-+ var->green.offset = 5;
-+ var->green.length = 6;
-+ var->blue.offset = 0;
-+ var->blue.length = 5;
-+ break;
-+ case 18:
-+ var->red.offset = 16;
-+ var->red.length = 6;
-+ var->green.offset = 8;
-+ var->green.length = 6;
-+ var->blue.offset = 0;
-+ var->blue.length = 6;
-+ var->bits_per_pixel = 32;
-+ break;
-+ case 32:
-+ case 24:
-+ var->transp.offset = 24;
-+ var->transp.length = 8;
-+ var->red.offset = 16;
-+ var->red.length = 8;
-+ var->green.offset = 8;
-+ var->green.length = 8;
-+ var->blue.offset = 0;
-+ var->blue.length = 8;
-+ var->bits_per_pixel = 32;
-+ break;
-+ default:
-+ break;
-+ }
-+
-+ return 0;
-+}
-+
-+static int jzfb_set_par(struct fb_info *info)
-+{
-+ struct jzfb *jzfb = info->par;
-+ struct fb_var_screeninfo *var = &info->var;
-+ struct fb_videomode *mode;
-+ uint16_t hds, vds;
-+ uint16_t hde, vde;
-+ uint16_t ht, vt;
-+ uint32_t ctrl;
-+ uint32_t cfg;
-+ unsigned long rate;
-+
-+ mode = jzfb_get_mode(jzfb, var);
-+ if (mode == NULL)
-+ return -EINVAL;
-+
-+ info->mode = mode;
-+
-+ hds = mode->hsync_len + mode->left_margin;
-+ hde = hds + mode->xres;
-+ ht = hde + mode->right_margin;
-+
-+ vds = mode->vsync_len + mode->upper_margin;
-+ vde = vds + mode->yres;
-+ vt = vde + mode->lower_margin;
-+
-+ ctrl = JZ_LCD_CTRL_OFUP | JZ_LCD_CTRL_BURST_16;
-+
-+ switch (jzfb->pdata->bpp) {
-+ case 1:
-+ ctrl |= JZ_LCD_CTRL_BPP_1;
-+ break;
-+ case 2:
-+ ctrl |= JZ_LCD_CTRL_BPP_2;
-+ break;
-+ case 4:
-+ ctrl |= JZ_LCD_CTRL_BPP_4;
-+ break;
-+ case 8:
-+ ctrl |= JZ_LCD_CTRL_BPP_8;
-+ break;
-+ case 15:
-+ ctrl |= JZ_LCD_CTRL_RGB555; /* Falltrough */
-+ case 16:
-+ ctrl |= JZ_LCD_CTRL_BPP_15_16;
-+ break;
-+ case 18:
-+ case 24:
-+ case 32:
-+ ctrl |= JZ_LCD_CTRL_BPP_18_24;
-+ break;
-+ default:
-+ break;
-+ }
-+
-+ cfg = 0;
-+ cfg |= JZ_LCD_CFG_PS_DISABLE;
-+ cfg |= JZ_LCD_CFG_CLS_DISABLE;
-+ cfg |= JZ_LCD_CFG_SPL_DISABLE;
-+ cfg |= JZ_LCD_CFG_REV_DISABLE;
-+
-+ if (!(mode->sync & FB_SYNC_HOR_HIGH_ACT))
-+ cfg |= JZ_LCD_CFG_HSYNC_ACTIVE_LOW;
-+
-+ if (!(mode->sync & FB_SYNC_VERT_HIGH_ACT))
-+ cfg |= JZ_LCD_CFG_VSYNC_ACTIVE_LOW;
-+
-+ if (jzfb->pdata->pixclk_falling_edge)
-+ cfg |= JZ_LCD_CFG_PCLK_FALLING_EDGE;
-+
-+ if (jzfb->pdata->date_enable_active_low)
-+ cfg |= JZ_LCD_CFG_DE_ACTIVE_LOW;
-+
-+ if (jzfb->pdata->lcd_type == JZ_LCD_TYPE_GENERIC_18_BIT)
-+ cfg |= JZ_LCD_CFG_18_BIT;
-+
-+ cfg |= jzfb->pdata->lcd_type & 0xf;
-+
-+ if (mode->pixclock) {
-+ rate = PICOS2KHZ(mode->pixclock) * 1000;
-+ mode->refresh = rate / vt / ht;
-+ } else {
-+ if (jzfb->pdata->lcd_type == JZ_LCD_TYPE_8BIT_SERIAL)
-+ rate = mode->refresh * (vt + 2 * mode->xres) * ht;
-+ else
-+ rate = mode->refresh * vt * ht;
-+
-+ mode->pixclock = KHZ2PICOS(rate / 1000);
-+ }
-+
-+ mutex_lock(&jzfb->lock);
-+ if (!jzfb->is_enabled)
-+ clk_enable(jzfb->ldclk);
-+ else
-+ ctrl |= JZ_LCD_CTRL_ENABLE;
-+
-+ writel(mode->hsync_len, jzfb->base + JZ_REG_LCD_HSYNC);
-+ writel(mode->vsync_len, jzfb->base + JZ_REG_LCD_VSYNC);
-+
-+ writel((ht << 16) | vt, jzfb->base + JZ_REG_LCD_VAT);
-+
-+ writel((hds << 16) | hde, jzfb->base + JZ_REG_LCD_DAH);
-+ writel((vds << 16) | vde, jzfb->base + JZ_REG_LCD_DAV);
-+
-+ writel(cfg, jzfb->base + JZ_REG_LCD_CFG);
-+
-+ writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
-+
-+ if (!jzfb->is_enabled)
-+ clk_disable(jzfb->ldclk);
-+ mutex_unlock(&jzfb->lock);
-+
-+ clk_set_rate(jzfb->lpclk, rate);
-+ clk_set_rate(jzfb->ldclk, rate * 3);
-+
-+ return 0;
-+}
-+
-+static void jzfb_enable(struct jzfb *jzfb)
-+{
-+ uint32_t ctrl;
-+
-+ clk_enable(jzfb->ldclk);
-+
-+ jz_gpio_bulk_resume(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-+ jz_gpio_bulk_resume(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-+
-+ writel(0, jzfb->base + JZ_REG_LCD_STATE);
-+
-+ writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0);
-+
-+ ctrl = readl(jzfb->base + JZ_REG_LCD_CTRL);
-+ ctrl |= JZ_LCD_CTRL_ENABLE;
-+ ctrl &= ~JZ_LCD_CTRL_DISABLE;
-+ writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
-+}
-+
-+static void jzfb_disable(struct jzfb *jzfb)
-+{
-+ uint32_t ctrl;
-+
-+ ctrl = readl(jzfb->base + JZ_REG_LCD_CTRL);
-+ ctrl |= JZ_LCD_CTRL_DISABLE;
-+ writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
-+ do {
-+ ctrl = readl(jzfb->base + JZ_REG_LCD_STATE);
-+ } while (!(ctrl & JZ_LCD_STATE_DISABLED));
-+
-+ jz_gpio_bulk_suspend(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-+ jz_gpio_bulk_suspend(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-+
-+ clk_disable(jzfb->ldclk);
-+}
-+
-+static int jzfb_blank(int blank_mode, struct fb_info *info)
-+{
-+ struct jzfb *jzfb = info->par;
-+
-+ switch (blank_mode) {
-+ case FB_BLANK_UNBLANK:
-+ mutex_lock(&jzfb->lock);
-+ if (jzfb->is_enabled) {
-+ mutex_unlock(&jzfb->lock);
-+ return 0;
-+ }
-+
-+ jzfb_enable(jzfb);
-+ jzfb->is_enabled = 1;
-+
-+ mutex_unlock(&jzfb->lock);
-+
-+ break;
-+ default:
-+ mutex_lock(&jzfb->lock);
-+ if (!jzfb->is_enabled) {
-+ mutex_unlock(&jzfb->lock);
-+ return 0;
-+ }
-+
-+ jzfb_disable(jzfb);
-+
-+ jzfb->is_enabled = 0;
-+ mutex_unlock(&jzfb->lock);
-+ break;
-+ }
-+
-+ return 0;
-+}
-+
-+static int jzfb_alloc_devmem(struct jzfb *jzfb)
-+{
-+ int max_videosize = 0;
-+ struct fb_videomode *mode = jzfb->pdata->modes;
-+ void *page;
-+ int i;
-+
-+ for (i = 0; i < jzfb->pdata->num_modes; ++mode, ++i) {
-+ if (max_videosize < mode->xres * mode->yres)
-+ max_videosize = mode->xres * mode->yres;
-+ }
-+
-+ max_videosize *= jzfb_get_controller_bpp(jzfb) >> 3;
-+
-+ jzfb->framedesc = dma_alloc_coherent(&jzfb->pdev->dev,
-+ sizeof(*jzfb->framedesc),
-+ &jzfb->framedesc_phys, GFP_KERNEL);
-+
-+ if (!jzfb->framedesc)
-+ return -ENOMEM;
-+
-+ jzfb->vidmem_size = PAGE_ALIGN(max_videosize);
-+ jzfb->vidmem = dma_alloc_coherent(&jzfb->pdev->dev,
-+ jzfb->vidmem_size,
-+ &jzfb->vidmem_phys, GFP_KERNEL);
-+
-+ if (!jzfb->vidmem)
-+ goto err_free_framedesc;
-+
-+ for (page = jzfb->vidmem;
-+ page < jzfb->vidmem + PAGE_ALIGN(jzfb->vidmem_size);
-+ page += PAGE_SIZE) {
-+ SetPageReserved(virt_to_page(page));
-+ }
-+
-+
-+ jzfb->framedesc->next = jzfb->framedesc_phys;
-+ jzfb->framedesc->addr = jzfb->vidmem_phys;
-+ jzfb->framedesc->id = 0xdeafbead;
-+ jzfb->framedesc->cmd = 0;
-+ jzfb->framedesc->cmd |= max_videosize / 4;
-+
-+ return 0;
-+
-+err_free_framedesc:
-+ dma_free_coherent(&jzfb->pdev->dev, sizeof(*jzfb->framedesc),
-+ jzfb->framedesc, jzfb->framedesc_phys);
-+ return -ENOMEM;
-+}
-+
-+static void jzfb_free_devmem(struct jzfb *jzfb)
-+{
-+ dma_free_coherent(&jzfb->pdev->dev, jzfb->vidmem_size,
-+ jzfb->vidmem, jzfb->vidmem_phys);
-+ dma_free_coherent(&jzfb->pdev->dev, sizeof(*jzfb->framedesc),
-+ jzfb->framedesc, jzfb->framedesc_phys);
-+}
-+
-+static struct fb_ops jzfb_ops = {
-+ .owner = THIS_MODULE,
-+ .fb_check_var = jzfb_check_var,
-+ .fb_set_par = jzfb_set_par,
-+ .fb_blank = jzfb_blank,
-+ .fb_fillrect = sys_fillrect,
-+ .fb_copyarea = sys_copyarea,
-+ .fb_imageblit = sys_imageblit,
-+ .fb_setcolreg = jzfb_setcolreg,
-+};
-+
-+static int __devinit jzfb_probe(struct platform_device *pdev)
-+{
-+ int ret;
-+ struct jzfb *jzfb;
-+ struct fb_info *fb;
-+ struct jz4740_fb_platform_data *pdata = pdev->dev.platform_data;
-+ struct resource *mem;
-+
-+ if (!pdata) {
-+ dev_err(&pdev->dev, "Missing platform data\n");
-+ return -ENOENT;
-+ }
-+
-+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+
-+ if (!mem) {
-+ dev_err(&pdev->dev, "Failed to get register memory resource\n");
-+ return -ENOENT;
-+ }
-+
-+ mem = request_mem_region(mem->start, resource_size(mem), pdev->name);
-+
-+ if (!mem) {
-+ dev_err(&pdev->dev, "Failed to request register memory region\n");
-+ return -EBUSY;
-+ }
-+
-+
-+ fb = framebuffer_alloc(sizeof(struct jzfb), &pdev->dev);
-+
-+ if (!fb) {
-+ dev_err(&pdev->dev, "Failed to allocate framebuffer device\n");
-+ ret = -ENOMEM;
-+ goto err_release_mem_region;
-+ }
-+
-+ fb->fbops = &jzfb_ops;
-+ fb->flags = FBINFO_DEFAULT;
-+
-+ jzfb = fb->par;
-+ jzfb->pdev = pdev;
-+ jzfb->pdata = pdata;
-+ jzfb->mem = mem;
-+
-+ jzfb->ldclk = clk_get(&pdev->dev, "lcd");
-+ if (IS_ERR(jzfb->ldclk)) {
-+ ret = PTR_ERR(jzfb->ldclk);
-+ dev_err(&pdev->dev, "Failed to get lcd clock: %d\n", ret);
-+ goto err_framebuffer_release;
-+ }
-+
-+ jzfb->lpclk = clk_get(&pdev->dev, "lcd_pclk");
-+ if (IS_ERR(jzfb->lpclk)) {
-+ ret = PTR_ERR(jzfb->lpclk);
-+ dev_err(&pdev->dev, "Failed to get lcd pixel clock: %d\n", ret);
-+ goto err_put_ldclk;
-+ }
-+
-+ jzfb->base = ioremap(mem->start, resource_size(mem));
-+
-+ if (!jzfb->base) {
-+ dev_err(&pdev->dev, "Failed to ioremap register memory region\n");
-+ ret = -EBUSY;
-+ goto err_put_lpclk;
-+ }
-+
-+ platform_set_drvdata(pdev, jzfb);
-+
-+ fb_videomode_to_modelist(pdata->modes, pdata->num_modes,
-+ &fb->modelist);
-+ fb->mode = pdata->modes;
-+
-+ fb_videomode_to_var(&fb->var, fb->mode);
-+ fb->var.bits_per_pixel = pdata->bpp;
-+ jzfb_check_var(&fb->var, fb);
-+
-+ ret = jzfb_alloc_devmem(jzfb);
-+ if (ret) {
-+ dev_err(&pdev->dev, "Failed to allocate video memory\n");
-+ goto err_iounmap;
-+ }
-+
-+ fb->fix = jzfb_fix;
-+ fb->fix.line_length = fb->var.bits_per_pixel * fb->var.xres / 8;
-+ fb->fix.mmio_start = mem->start;
-+ fb->fix.mmio_len = resource_size(mem);
-+ fb->fix.smem_start = jzfb->vidmem_phys;
-+ fb->fix.smem_len = fb->fix.line_length * fb->var.yres;
-+ fb->screen_base = jzfb->vidmem;
-+ fb->pseudo_palette = jzfb->pseudo_palette;
-+
-+ fb_alloc_cmap(&fb->cmap, 256, 0);
-+
-+ mutex_init(&jzfb->lock);
-+
-+ clk_enable(jzfb->ldclk);
-+ jzfb->is_enabled = 1;
-+
-+ writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0);
-+ jzfb_set_par(fb);
-+
-+ jz_gpio_bulk_request(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-+ jz_gpio_bulk_request(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-+
-+ ret = register_framebuffer(fb);
-+ if (ret) {
-+ dev_err(&pdev->dev, "Failed to register framebuffer: %d\n", ret);
-+ goto err_free_devmem;
-+ }
-+
-+ jzfb->fb = fb;
-+
-+ return 0;
-+
-+err_free_devmem:
-+ jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-+ jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-+
-+ fb_dealloc_cmap(&fb->cmap);
-+ jzfb_free_devmem(jzfb);
-+err_iounmap:
-+ iounmap(jzfb->base);
-+err_put_lpclk:
-+ clk_put(jzfb->lpclk);
-+err_put_ldclk:
-+ clk_put(jzfb->ldclk);
-+err_framebuffer_release:
-+ framebuffer_release(fb);
-+err_release_mem_region:
-+ release_mem_region(mem->start, resource_size(mem));
-+ return ret;
-+}
-+
-+static int __devexit jzfb_remove(struct platform_device *pdev)
-+{
-+ struct jzfb *jzfb = platform_get_drvdata(pdev);
-+
-+ jzfb_blank(FB_BLANK_POWERDOWN, jzfb->fb);
-+
-+ jz_gpio_bulk_free(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
-+ jz_gpio_bulk_free(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
-+
-+ iounmap(jzfb->base);
-+ release_mem_region(jzfb->mem->start, resource_size(jzfb->mem));
-+
-+ fb_dealloc_cmap(&jzfb->fb->cmap);
-+ jzfb_free_devmem(jzfb);
-+
-+ platform_set_drvdata(pdev, NULL);
-+
-+ clk_put(jzfb->lpclk);
-+ clk_put(jzfb->ldclk);
-+
-+ framebuffer_release(jzfb->fb);
-+
-+ return 0;
-+}
-+
-+#ifdef CONFIG_PM
-+
-+static int jzfb_suspend(struct device *dev)
-+{
-+ struct jzfb *jzfb = dev_get_drvdata(dev);
-+
-+ acquire_console_sem();
-+ fb_set_suspend(jzfb->fb, 1);
-+ release_console_sem();
-+
-+ mutex_lock(&jzfb->lock);
-+ if (jzfb->is_enabled)
-+ jzfb_disable(jzfb);
-+ mutex_unlock(&jzfb->lock);
-+
-+ return 0;
-+}
-+
-+static int jzfb_resume(struct device *dev)
-+{
-+ struct jzfb *jzfb = dev_get_drvdata(dev);
-+ clk_enable(jzfb->ldclk);
-+
-+ mutex_lock(&jzfb->lock);
-+ if (jzfb->is_enabled)
-+ jzfb_enable(jzfb);
-+ mutex_unlock(&jzfb->lock);
-+
-+ acquire_console_sem();
-+ fb_set_suspend(jzfb->fb, 0);
-+ release_console_sem();
-+
-+ return 0;
-+}
-+
-+static const struct dev_pm_ops jzfb_pm_ops = {
-+ .suspend = jzfb_suspend,
-+ .resume = jzfb_resume,
-+ .poweroff = jzfb_suspend,
-+ .restore = jzfb_resume,
-+};
-+
-+#define JZFB_PM_OPS (&jzfb_pm_ops)
-+
-+#else
-+#define JZFB_PM_OPS NULL
-+#endif
-+
-+static struct platform_driver jzfb_driver = {
-+ .probe = jzfb_probe,
-+ .remove = __devexit_p(jzfb_remove),
-+ .driver = {
-+ .name = "jz4740-fb",
-+ .pm = JZFB_PM_OPS,
-+ },
-+};
-+
-+static int __init jzfb_init(void)
-+{
-+ return platform_driver_register(&jzfb_driver);
-+}
-+module_init(jzfb_init);
-+
-+static void __exit jzfb_exit(void)
-+{
-+ platform_driver_unregister(&jzfb_driver);
-+}
-+module_exit(jzfb_exit);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-+MODULE_DESCRIPTION("JZ4720/JZ4740 SoC LCD framebuffer driver");
-+MODULE_ALIAS("platform:jz4740-fb");
-diff --git a/include/linux/jz4740_fb.h b/include/linux/jz4740_fb.h
-new file mode 100644
-index 0000000..ab4c963
---- /dev/null
-+++ b/include/linux/jz4740_fb.h
-@@ -0,0 +1,58 @@
-+/*
-+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
-+ *
-+ * 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.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ *
-+ */
-+
-+#ifndef __LINUX_JZ4740_FB_H
-+#define __LINUX_JZ4740_FB_H
-+
-+#include <linux/fb.h>
-+
-+enum jz4740_fb_lcd_type {
-+ JZ_LCD_TYPE_GENERIC_16_BIT = 0,
-+ JZ_LCD_TYPE_GENERIC_18_BIT = 0 | (1 << 4),
-+ JZ_LCD_TYPE_SPECIAL_TFT_1 = 1,
-+ JZ_LCD_TYPE_SPECIAL_TFT_2 = 2,
-+ JZ_LCD_TYPE_SPECIAL_TFT_3 = 3,
-+ JZ_LCD_TYPE_NON_INTERLACED_CCIR656 = 5,
-+ JZ_LCD_TYPE_INTERLACED_CCIR656 = 7,
-+ JZ_LCD_TYPE_SINGLE_COLOR_STN = 8,
-+ JZ_LCD_TYPE_SINGLE_MONOCHROME_STN = 9,
-+ JZ_LCD_TYPE_DUAL_COLOR_STN = 10,
-+ JZ_LCD_TYPE_DUAL_MONOCHROME_STN = 11,
-+ JZ_LCD_TYPE_8BIT_SERIAL = 12,
-+};
-+
-+/*
-+* width: width of the lcd display in mm
-+* height: height of the lcd display in mm
-+* num_modes: size of modes
-+* modes: list of valid video modes
-+* bpp: bits per pixel for the lcd
-+* lcd_type: lcd type
-+*/
-+
-+struct jz4740_fb_platform_data {
-+ unsigned int width;
-+ unsigned int height;
-+
-+ size_t num_modes;
-+ struct fb_videomode *modes;
-+
-+ unsigned int bpp;
-+ enum jz4740_fb_lcd_type lcd_type;
-+
-+ unsigned pixclk_falling_edge:1;
-+ unsigned date_enable_active_low:1;
-+};
-+
-+#endif
---
-1.5.6.5
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 15:18:29 +0000