diff options
author | lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-01-06 01:33:19 +0000 |
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committer | lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2011-01-06 01:33:19 +0000 |
commit | 6ea4c6c0f2ae52def12bf2f77edd69e314152eca (patch) | |
tree | 5dcc3eb14ad28d2ea12e92674b6f35dee3b0b575 /target/linux/xburst/patches-2.6.35/051-fb.patch | |
parent | 12cb8e47f82cfc3132962382d3a290028548b902 (diff) |
[xburst] Drop support for older kernel versions
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24915 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/xburst/patches-2.6.35/051-fb.patch')
-rw-r--r-- | target/linux/xburst/patches-2.6.35/051-fb.patch | 971 |
1 files changed, 0 insertions, 971 deletions
diff --git a/target/linux/xburst/patches-2.6.35/051-fb.patch b/target/linux/xburst/patches-2.6.35/051-fb.patch deleted file mode 100644 index e021abf05..000000000 --- a/target/linux/xburst/patches-2.6.35/051-fb.patch +++ /dev/null @@ -1,971 +0,0 @@ -From 91ead9db8aabb54f4867e5a7ed4782dcca2273f5 Mon Sep 17 00:00:00 2001 -From: Lars-Peter Clausen <lars@metafoo.de> -Date: Sat, 17 Jul 2010 11:14:34 +0000 -Subject: [PATCH] FBDEV: JZ4740: Add framebuffer driver - -Add support for the LCD controller on JZ4740 SoCs. - -Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> -Cc: Andrew Morton <akpm@linux-foundation.org> -Cc: linux-fbdev@vger.kernel.org -Cc: linux-mips@linux-mips.org -Cc: linux-kernel@vger.kernel.org -Patchwork: https://patchwork.linux-mips.org/patch/1470/ -Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---- - arch/mips/include/asm/mach-jz4740/jz4740_fb.h | 67 ++ - drivers/video/Kconfig | 9 + - drivers/video/Makefile | 1 + - drivers/video/jz4740_fb.c | 847 +++++++++++++++++++++++++ - 4 files changed, 924 insertions(+), 0 deletions(-) - create mode 100644 arch/mips/include/asm/mach-jz4740/jz4740_fb.h - create mode 100644 drivers/video/jz4740_fb.c - ---- /dev/null -+++ b/arch/mips/include/asm/mach-jz4740/jz4740_fb.h -@@ -0,0 +1,67 @@ -+/* -+ * 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 __ASM_MACH_JZ4740_JZ4740_FB_H__ -+#define __ASM_MACH_JZ4740_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, -+}; -+ -+#define JZ4740_FB_SPECIAL_TFT_CONFIG(start, stop) (((start) << 16) | (stop)) -+ -+/* -+* 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; -+ -+ struct { -+ uint32_t spl; -+ uint32_t cls; -+ uint32_t ps; -+ uint32_t rev; -+ } special_tft_config; -+ -+ unsigned pixclk_falling_edge:1; -+ unsigned date_enable_active_low:1; -+}; -+ -+#endif ---- a/drivers/video/Kconfig -+++ b/drivers/video/Kconfig -@@ -2229,6 +2229,15 @@ config FB_BROADSHEET - and could also have been called by other names when coupled with - a bridge adapter. - -+config FB_JZ4740 -+ tristate "JZ4740 LCD framebuffer support" -+ depends on FB -+ select FB_SYS_FILLRECT -+ select FB_SYS_COPYAREA -+ select FB_SYS_IMAGEBLIT -+ help -+ Framebuffer support for the JZ4740 SoC. -+ - source "drivers/video/omap/Kconfig" - source "drivers/video/omap2/Kconfig" - ---- a/drivers/video/Makefile -+++ b/drivers/video/Makefile -@@ -131,6 +131,7 @@ obj-$(CONFIG_FB_CARMINE) += car - obj-$(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 ---- /dev/null -+++ b/drivers/video/jz4740_fb.c -@@ -0,0 +1,847 @@ -+/* -+ * 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 <asm/mach-jz4740/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; -+} __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 const 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, -+}; -+ -+static const 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), -+ JZ_GPIO_BULK_PIN(LCD_CLS), -+ JZ_GPIO_BULK_PIN(LCD_SPL), -+}; -+ -+static const 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; -+ case JZ_LCD_TYPE_SPECIAL_TFT_1: -+ case JZ_LCD_TYPE_SPECIAL_TFT_2: -+ case JZ_LCD_TYPE_SPECIAL_TFT_3: -+ num = 8; -+ 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; -+ case JZ_LCD_TYPE_SPECIAL_TFT_1: -+ case JZ_LCD_TYPE_SPECIAL_TFT_2: -+ case JZ_LCD_TYPE_SPECIAL_TFT_3: -+ if (jzfb->pdata->bpp == 18) -+ num = 18; -+ else -+ num = 16; -+ break; -+ default: -+ num = 0; -+ break; -+ } -+ return num; -+} -+ -+/* Based on CNVT_TOHW macro from skeletonfb.c */ -+static inline uint32_t jzfb_convert_color_to_hw(unsigned val, -+ struct fb_bitfield *bf) -+{ -+ return (((val << bf->length) + 0x7FFF - val) >> 16) << bf->offset; -+} -+ -+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; -+ -+ color = jzfb_convert_color_to_hw(red, &fb->var.red); -+ color |= jzfb_convert_color_to_hw(green, &fb->var.green); -+ color |= jzfb_convert_color_to_hw(blue, &fb->var.blue); -+ color |= jzfb_convert_color_to_hw(transp, &fb->var.transp); -+ -+ ((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 jz4740_fb_platform_data *pdata = jzfb->pdata; -+ 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; -+ -+ if (mode == info->mode) -+ return 0; -+ -+ 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 (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 = pdata->lcd_type & 0xf; -+ -+ 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 (pdata->pixclk_falling_edge) -+ cfg |= JZ_LCD_CFG_PCLK_FALLING_EDGE; -+ -+ if (pdata->date_enable_active_low) -+ cfg |= JZ_LCD_CFG_DE_ACTIVE_LOW; -+ -+ if (pdata->lcd_type == JZ_LCD_TYPE_GENERIC_18_BIT) -+ cfg |= JZ_LCD_CFG_18_BIT; -+ -+ if (mode->pixclock) { -+ rate = PICOS2KHZ(mode->pixclock) * 1000; -+ mode->refresh = rate / vt / ht; -+ } else { -+ if (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; -+ -+ switch (pdata->lcd_type) { -+ case JZ_LCD_TYPE_SPECIAL_TFT_1: -+ case JZ_LCD_TYPE_SPECIAL_TFT_2: -+ case JZ_LCD_TYPE_SPECIAL_TFT_3: -+ writel(pdata->special_tft_config.spl, jzfb->base + JZ_REG_LCD_SPL); -+ writel(pdata->special_tft_config.cls, jzfb->base + JZ_REG_LCD_CLS); -+ writel(pdata->special_tft_config.ps, jzfb->base + JZ_REG_LCD_PS); -+ writel(pdata->special_tft_config.ps, jzfb->base + JZ_REG_LCD_REV); -+ break; -+ default: -+ cfg |= JZ_LCD_CFG_PS_DISABLE; -+ cfg |= JZ_LCD_CFG_CLS_DISABLE; -+ cfg |= JZ_LCD_CFG_SPL_DISABLE; -+ cfg |= JZ_LCD_CFG_REV_DISABLE; -+ break; -+ } -+ -+ 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 -ENXIO; -+ } -+ -+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!mem) { -+ dev_err(&pdev->dev, "Failed to get register memory resource\n"); -+ return -ENXIO; -+ } -+ -+ 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); -+ -+ mutex_init(&jzfb->lock); -+ -+ fb_videomode_to_modelist(pdata->modes, pdata->num_modes, -+ &fb->modelist); -+ fb_videomode_to_var(&fb->var, pdata->modes); -+ 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); -+ -+ clk_enable(jzfb->ldclk); -+ jzfb->is_enabled = 1; -+ -+ writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0); -+ -+ fb->mode = NULL; -+ 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("JZ4740 SoC LCD framebuffer driver"); -+MODULE_ALIAS("platform:jz4740-fb"); |