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    Subject[PATCH 05/11] video/fbdev: Drop JZ4740 driver
    Date
    The JZ4740 fbdev driver has been replaced with the ingenic-drm driver.

    Signed-off-by: Paul Cercueil <paul@crapouillou.net>
    Tested-by: Artur Rojek <contact@artur-rojek.eu>
    ---
    drivers/video/fbdev/Kconfig | 9 -
    drivers/video/fbdev/Makefile | 1 -
    drivers/video/fbdev/jz4740_fb.c | 690 --------------------------------
    3 files changed, 700 deletions(-)
    delete mode 100644 drivers/video/fbdev/jz4740_fb.c

    diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
    index 6b2de93bd302..6fce711f42c5 100644
    --- a/drivers/video/fbdev/Kconfig
    +++ b/drivers/video/fbdev/Kconfig
    @@ -2211,15 +2211,6 @@ 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 && MACH_JZ4740
    - select FB_SYS_FILLRECT
    - select FB_SYS_COPYAREA
    - select FB_SYS_IMAGEBLIT
    - help
    - Framebuffer support for the JZ4740 SoC.
    -
    config FB_PUV3_UNIGFX
    tristate "PKUnity v3 Unigfx framebuffer support"
    depends on FB && UNICORE32 && ARCH_PUV3
    diff --git a/drivers/video/fbdev/Makefile b/drivers/video/fbdev/Makefile
    index 7dc4861a93e6..49502d6256cb 100644
    --- a/drivers/video/fbdev/Makefile
    +++ b/drivers/video/fbdev/Makefile
    @@ -117,7 +117,6 @@ obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
    obj-$(CONFIG_FB_CARMINE) += carminefb.o
    obj-$(CONFIG_FB_MB862XX) += mb862xx/
    obj-$(CONFIG_FB_NUC900) += nuc900fb.o
    -obj-$(CONFIG_FB_JZ4740) += jz4740_fb.o
    obj-$(CONFIG_FB_PUV3_UNIGFX) += fb-puv3.o
    obj-$(CONFIG_FB_HYPERV) += hyperv_fb.o
    obj-$(CONFIG_FB_OPENCORES) += ocfb.o
    diff --git a/drivers/video/fbdev/jz4740_fb.c b/drivers/video/fbdev/jz4740_fb.c
    deleted file mode 100644
    index 0b6fa25f6924..000000000000
    --- a/drivers/video/fbdev/jz4740_fb.c
    +++ /dev/null
    @@ -1,690 +0,0 @@
    -// SPDX-License-Identifier: GPL-2.0-or-later
    -/*
    - * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
    - * JZ4740 SoC LCD framebuffer driver
    - */
    -
    -#include <linux/kernel.h>
    -#include <linux/module.h>
    -#include <linux/mutex.h>
    -#include <linux/platform_device.h>
    -#include <linux/pinctrl/consumer.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>
    -
    -#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(31)
    -#define JZ_LCD_CMD_EOF_IRQ BIT(30)
    -#define JZ_LCD_CMD_ENABLE_PAL BIT(28)
    -
    -#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 = {
    - .id = "JZ4740 FB",
    - .type = FB_TYPE_PACKED_PIXELS,
    - .visual = FB_VISUAL_TRUECOLOR,
    - .xpanstep = 0,
    - .ypanstep = 0,
    - .ywrapstep = 0,
    - .accel = FB_ACCEL_NONE,
    -};
    -
    -/* 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_unprepare(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_prepare_enable(jzfb->ldclk);
    -
    - pinctrl_pm_select_default_state(&jzfb->pdev->dev);
    -
    - 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));
    -
    - pinctrl_pm_select_sleep_state(&jzfb->pdev->dev);
    -
    - clk_disable_unprepare(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;
    - 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;
    -
    - 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 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;
    - }
    -
    - fb = framebuffer_alloc(sizeof(struct jzfb), &pdev->dev);
    - if (!fb)
    - return -ENOMEM;
    -
    - fb->fbops = &jzfb_ops;
    - fb->flags = FBINFO_DEFAULT;
    -
    - jzfb = fb->par;
    - jzfb->pdev = pdev;
    - jzfb->pdata = pdata;
    -
    - jzfb->ldclk = devm_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 = devm_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_framebuffer_release;
    - }
    -
    - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
    - jzfb->base = devm_ioremap_resource(&pdev->dev, mem);
    - if (IS_ERR(jzfb->base)) {
    - ret = PTR_ERR(jzfb->base);
    - goto err_framebuffer_release;
    - }
    -
    - 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_framebuffer_release;
    - }
    -
    - 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_prepare_enable(jzfb->ldclk);
    - jzfb->is_enabled = 1;
    -
    - writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0);
    -
    - fb->mode = NULL;
    - jzfb_set_par(fb);
    -
    - 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:
    - fb_dealloc_cmap(&fb->cmap);
    - jzfb_free_devmem(jzfb);
    -err_framebuffer_release:
    - framebuffer_release(fb);
    - return ret;
    -}
    -
    -static int jzfb_remove(struct platform_device *pdev)
    -{
    - struct jzfb *jzfb = platform_get_drvdata(pdev);
    -
    - jzfb_blank(FB_BLANK_POWERDOWN, jzfb->fb);
    -
    - fb_dealloc_cmap(&jzfb->fb->cmap);
    - jzfb_free_devmem(jzfb);
    -
    - framebuffer_release(jzfb->fb);
    -
    - return 0;
    -}
    -
    -#ifdef CONFIG_PM
    -
    -static int jzfb_suspend(struct device *dev)
    -{
    - struct jzfb *jzfb = dev_get_drvdata(dev);
    -
    - console_lock();
    - fb_set_suspend(jzfb->fb, 1);
    - console_unlock();
    -
    - 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_prepare_enable(jzfb->ldclk);
    -
    - mutex_lock(&jzfb->lock);
    - if (jzfb->is_enabled)
    - jzfb_enable(jzfb);
    - mutex_unlock(&jzfb->lock);
    -
    - console_lock();
    - fb_set_suspend(jzfb->fb, 0);
    - console_unlock();
    -
    - 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 = jzfb_remove,
    - .driver = {
    - .name = "jz4740-fb",
    - .pm = JZFB_PM_OPS,
    - },
    -};
    -module_platform_driver(jzfb_driver);
    -
    -MODULE_LICENSE("GPL");
    -MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
    -MODULE_DESCRIPTION("JZ4740 SoC LCD framebuffer driver");
    -MODULE_ALIAS("platform:jz4740-fb");
    --
    2.21.0.593.g511ec345e18
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      Last update: 2019-07-26 00:03    [W:4.315 / U:0.052 seconds]
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