From 034dd340b08be1f2f0477ad16131d609f9dbd53c Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 30 Aug 2026 09:22:00 -0700 Subject: Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fixes from Steven Rostedt: - Fix error output of boot instance creation failure Currently if a boot instance creation fails, instead of printing out the name of the instance that failed, it prints "(null)". That is because it prints "cur_str" that had already been processed by strsep(). Print the saved name instead. While at it, print the error code of the failure. - Fix use-after-free for same named historgrams Histograms can be named so that they can be used in multiple events. But if the named histogram has a variable attached, the second event that uses the named histogram which duplicates it and needs to free the original after duplication leaves the old variable in place and still visible. If another histogram uses than variable, it will use the stale one which will try to reference the freed duplicate histogram and crash the kernel. Free the duplicate variables along with the duplicated histogram data. - Check return value of kthread_run() in event self test The events self tests uses a kthread for testing but does not check if it succeeded in creating a kthread. If the kthread creation were to fail, the code will still try to call kthread_stop() on the error returned. - Fix race between reading trace_pipe and updating subbuffer size If a user is reading the trace_pipe file at the same time they update the ring buffer sub-buffer size, can cause the trace_pipe read to read stale data. Add trace_access_lock() around updating the ring buffer sub-buffer size. - Fix eventfs_inode on failure path in creation of the events directory In the creation of the "events" directory, if after allocating the eventfs_inode a failure is detected, it calls cleanup_ei() which calls free_ei(). The free_ei() will test if eventfs_inode being freed has no children. It is a bug if it does. But on the failure case of the creation of the "events" directory, the children lists have not yet been initialized and the free will trigger a warning because list_empty() on an uninitialized list returns false. Move the initialization into init_ei() where it makes more sense and makes sure that a created eventfs_inode has its lists initialized upon creation. - Check return value of kthread_run() in ftrace direct sample code The sample code that shows how to use the ftrace direct calls does not test the return of kthread_run() to see if it succeeds. Return a failure if the kthread_run() doesn't succeed. - Clear user events state on fork in case of alloc failure On fork, the child gets a pointer to the parent's user events state. It makes a copy of it then updates the child's pointer to it. But if the allocation fails, the duplication function leaves the child with a pointer to its parent's descriptor. When the child cleans up its data, it will free the parent's descriptor while the parent is still using it. In the duplication function, set the child's user_event_mm to NULL before testing if the allocation succeeded, and when it exits it will not free the parent's descriptor. - Fix retry exhaustion in simple ring buffer reader swap simple_ring_buffer_swap_reader_page() starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement leaves retry at zero, while a failed replacement leaves it at -1. But the check for success expects the retry value to be non-zero and exits with an error on zero. This is the opposite result. Fix it. - Fail nicely when the remote swap_reader_page() returns an error Currently, if the swap_reader_page() of a remote buffer fails, it triggers a WARN_ON_ONCE() and continues normally. Instead, have it exit with an error and a pr_warn() print instead of a full WARNING. * tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Stop remote reader update when page swap fails tracing: Fix retry exhaustion in simple ring buffer reader swap tracing/user_events: Clear copied tracing state before fork duplication samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify eventfs: Initialize ei->children and ei->list in init_ei() tracing: Fix use-after-free in trace_pipe read on sub-buffer order change tracing: Fix crash passing ERR_PTR to kthread_stop() tracing: Fix use-after-free with same-name named triggers tracing: Fix logged instance name on creation failure --- drivers/video/fbdev/leo.c | 682 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 682 insertions(+) create mode 100644 drivers/video/fbdev/leo.c (limited to 'drivers/video/fbdev/leo.c') diff --git a/drivers/video/fbdev/leo.c b/drivers/video/fbdev/leo.c new file mode 100644 index 000000000..b9fb059df --- /dev/null +++ b/drivers/video/fbdev/leo.c @@ -0,0 +1,682 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* leo.c: LEO frame buffer driver + * + * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996-1999 Jakub Jelinek (jj@ultra.linux.cz) + * Copyright (C) 1997 Michal Rehacek (Michal.Rehacek@st.mff.cuni.cz) + * + * Driver layout based loosely on tgafb.c, see that file for credits. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "sbuslib.h" + +/* + * Local functions. + */ + +static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned, + unsigned, struct fb_info *); +static int leo_blank(int, struct fb_info *); +static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *); + +static int leo_sbusfb_mmap(struct fb_info *info, struct vm_area_struct *vma); +static int leo_sbusfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg); + +/* + * Frame buffer operations + */ + +static const struct fb_ops leo_ops = { + .owner = THIS_MODULE, + FB_DEFAULT_SBUS_OPS(leo), + .fb_setcolreg = leo_setcolreg, + .fb_blank = leo_blank, + .fb_pan_display = leo_pan_display, +}; + +#define LEO_OFF_LC_SS0_KRN 0x00200000UL +#define LEO_OFF_LC_SS0_USR 0x00201000UL +#define LEO_OFF_LC_SS1_KRN 0x01200000UL +#define LEO_OFF_LC_SS1_USR 0x01201000UL +#define LEO_OFF_LD_SS0 0x00400000UL +#define LEO_OFF_LD_SS1 0x01400000UL +#define LEO_OFF_LD_GBL 0x00401000UL +#define LEO_OFF_LX_KRN 0x00600000UL +#define LEO_OFF_LX_CURSOR 0x00601000UL +#define LEO_OFF_SS0 0x00800000UL +#define LEO_OFF_SS1 0x01800000UL +#define LEO_OFF_UNK 0x00602000UL +#define LEO_OFF_UNK2 0x00000000UL + +#define LEO_CUR_ENABLE 0x00000080 +#define LEO_CUR_UPDATE 0x00000030 +#define LEO_CUR_PROGRESS 0x00000006 +#define LEO_CUR_UPDATECMAP 0x00000003 + +#define LEO_CUR_TYPE_MASK 0x00000000 +#define LEO_CUR_TYPE_IMAGE 0x00000020 +#define LEO_CUR_TYPE_CMAP 0x00000050 + +struct leo_cursor { + u8 xxx0[16]; + u32 cur_type; + u32 cur_misc; + u32 cur_cursxy; + u32 cur_data; +}; + +#define LEO_KRN_TYPE_CLUT0 0x00001000 +#define LEO_KRN_TYPE_CLUT1 0x00001001 +#define LEO_KRN_TYPE_CLUT2 0x00001002 +#define LEO_KRN_TYPE_WID 0x00001003 +#define LEO_KRN_TYPE_UNK 0x00001006 +#define LEO_KRN_TYPE_VIDEO 0x00002003 +#define LEO_KRN_TYPE_CLUTDATA 0x00004000 +#define LEO_KRN_CSR_ENABLE 0x00000008 +#define LEO_KRN_CSR_PROGRESS 0x00000004 +#define LEO_KRN_CSR_UNK 0x00000002 +#define LEO_KRN_CSR_UNK2 0x00000001 + +struct leo_lx_krn { + u32 krn_type; + u32 krn_csr; + u32 krn_value; +}; + +struct leo_lc_ss0_krn { + u32 misc; + u8 xxx0[0x800-4]; + u32 rev; +}; + +struct leo_lc_ss0_usr { + u32 csr; + u32 addrspace; + u32 fontmsk; + u32 fontt; + u32 extent; + u32 src; + u32 dst; + u32 copy; + u32 fill; +}; + +struct leo_lc_ss1_krn { + u8 unknown; +}; + +struct leo_lc_ss1_usr { + u8 unknown; +}; + +struct leo_ld_ss0 { + u8 xxx0[0xe00]; + u32 csr; + u32 wid; + u32 wmask; + u32 widclip; + u32 vclipmin; + u32 vclipmax; + u32 pickmin; /* SS1 only */ + u32 pickmax; /* SS1 only */ + u32 fg; + u32 bg; + u32 src; /* Copy/Scroll (SS0 only) */ + u32 dst; /* Copy/Scroll/Fill (SS0 only) */ + u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ + u32 xxx1[3]; + u32 setsem; /* SS1 only */ + u32 clrsem; /* SS1 only */ + u32 clrpick; /* SS1 only */ + u32 clrdat; /* SS1 only */ + u32 alpha; /* SS1 only */ + u8 xxx2[0x2c]; + u32 winbg; + u32 planemask; + u32 rop; + u32 z; + u32 dczf; /* SS1 only */ + u32 dczb; /* SS1 only */ + u32 dcs; /* SS1 only */ + u32 dczs; /* SS1 only */ + u32 pickfb; /* SS1 only */ + u32 pickbb; /* SS1 only */ + u32 dcfc; /* SS1 only */ + u32 forcecol; /* SS1 only */ + u32 door[8]; /* SS1 only */ + u32 pick[5]; /* SS1 only */ +}; + +#define LEO_SS1_MISC_ENABLE 0x00000001 +#define LEO_SS1_MISC_STEREO 0x00000002 +struct leo_ld_ss1 { + u8 xxx0[0xef4]; + u32 ss1_misc; +}; + +struct leo_ld_gbl { + u8 unknown; +}; + +struct leo_par { + spinlock_t lock; + struct leo_lx_krn __iomem *lx_krn; + struct leo_lc_ss0_usr __iomem *lc_ss0_usr; + struct leo_ld_ss0 __iomem *ld_ss0; + struct leo_ld_ss1 __iomem *ld_ss1; + struct leo_cursor __iomem *cursor; + u32 extent; + u32 clut_data[256]; + + u32 flags; +#define LEO_FLAG_BLANKED 0x00000001 + + unsigned long which_io; +}; + +static void leo_wait(struct leo_lx_krn __iomem *lx_krn) +{ + int i; + + for (i = 0; + (sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && + i < 300000; + i++) + udelay(1); /* Busy wait at most 0.3 sec */ + return; +} + +static void leo_switch_from_graph(struct fb_info *info) +{ + struct leo_par *par = (struct leo_par *) info->par; + struct leo_ld_ss0 __iomem *ss = par->ld_ss0; + struct leo_cursor __iomem *cursor = par->cursor; + unsigned long flags; + u32 val; + + spin_lock_irqsave(&par->lock, flags); + + par->extent = ((info->var.xres - 1) | + ((info->var.yres - 1) << 16)); + + sbus_writel(0xffffffff, &ss->wid); + sbus_writel(0xffff, &ss->wmask); + sbus_writel(0, &ss->vclipmin); + sbus_writel(par->extent, &ss->vclipmax); + sbus_writel(0, &ss->fg); + sbus_writel(0xff000000, &ss->planemask); + sbus_writel(0x310850, &ss->rop); + sbus_writel(0, &ss->widclip); + sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11), + &par->lc_ss0_usr->extent); + sbus_writel(4, &par->lc_ss0_usr->addrspace); + sbus_writel(0x80000000, &par->lc_ss0_usr->fill); + sbus_writel(0, &par->lc_ss0_usr->fontt); + do { + val = sbus_readl(&par->lc_ss0_usr->csr); + } while (val & 0x20000000); + + /* setup screen buffer for cfb_* functions */ + sbus_writel(1, &ss->wid); + sbus_writel(0x00ffffff, &ss->planemask); + sbus_writel(0x310b90, &ss->rop); + sbus_writel(0, &par->lc_ss0_usr->addrspace); + + /* hide cursor */ + sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc); + + spin_unlock_irqrestore(&par->lock, flags); +} + +static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) +{ + /* We just use this to catch switches out of + * graphics mode. + */ + leo_switch_from_graph(info); + + if (var->xoffset || var->yoffset || var->vmode) + return -EINVAL; + return 0; +} + +/** + * leo_setcolreg - Optional function. Sets a color register. + * @regno: boolean, 0 copy local, 1 get_user() function + * @red: frame buffer colormap structure + * @green: The green value which can be up to 16 bits wide + * @blue: The blue value which can be up to 16 bits wide. + * @transp: If supported the alpha value which can be up to 16 bits wide. + * @info: frame buffer info structure + */ +static int leo_setcolreg(unsigned regno, + unsigned red, unsigned green, unsigned blue, + unsigned transp, struct fb_info *info) +{ + struct leo_par *par = (struct leo_par *) info->par; + struct leo_lx_krn __iomem *lx_krn = par->lx_krn; + unsigned long flags; + u32 val; + int i; + + if (regno >= 256) + return 1; + + red >>= 8; + green >>= 8; + blue >>= 8; + + par->clut_data[regno] = red | (green << 8) | (blue << 16); + + spin_lock_irqsave(&par->lock, flags); + + leo_wait(lx_krn); + + sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type); + for (i = 0; i < 256; i++) + sbus_writel(par->clut_data[i], &lx_krn->krn_value); + sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type); + + val = sbus_readl(&lx_krn->krn_csr); + val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); + sbus_writel(val, &lx_krn->krn_csr); + + spin_unlock_irqrestore(&par->lock, flags); + + return 0; +} + +/** + * leo_blank - Optional function. Blanks the display. + * @blank: the blank mode we want. + * @info: frame buffer structure that represents a single frame buffer + */ +static int leo_blank(int blank, struct fb_info *info) +{ + struct leo_par *par = (struct leo_par *) info->par; + struct leo_lx_krn __iomem *lx_krn = par->lx_krn; + unsigned long flags; + u32 val; + + spin_lock_irqsave(&par->lock, flags); + + switch (blank) { + case FB_BLANK_UNBLANK: /* Unblanking */ + val = sbus_readl(&lx_krn->krn_csr); + val |= LEO_KRN_CSR_ENABLE; + sbus_writel(val, &lx_krn->krn_csr); + par->flags &= ~LEO_FLAG_BLANKED; + break; + + case FB_BLANK_NORMAL: /* Normal blanking */ + case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ + case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ + case FB_BLANK_POWERDOWN: /* Poweroff */ + val = sbus_readl(&lx_krn->krn_csr); + val &= ~LEO_KRN_CSR_ENABLE; + sbus_writel(val, &lx_krn->krn_csr); + par->flags |= LEO_FLAG_BLANKED; + break; + } + + spin_unlock_irqrestore(&par->lock, flags); + + return 0; +} + +static const struct sbus_mmap_map leo_mmap_map[] = { + { + .voff = LEO_SS0_MAP, + .poff = LEO_OFF_SS0, + .size = 0x800000 + }, + { + .voff = LEO_LC_SS0_USR_MAP, + .poff = LEO_OFF_LC_SS0_USR, + .size = 0x1000 + }, + { + .voff = LEO_LD_SS0_MAP, + .poff = LEO_OFF_LD_SS0, + .size = 0x1000 + }, + { + .voff = LEO_LX_CURSOR_MAP, + .poff = LEO_OFF_LX_CURSOR, + .size = 0x1000 + }, + { + .voff = LEO_SS1_MAP, + .poff = LEO_OFF_SS1, + .size = 0x800000 + }, + { + .voff = LEO_LC_SS1_USR_MAP, + .poff = LEO_OFF_LC_SS1_USR, + .size = 0x1000 + }, + { + .voff = LEO_LD_SS1_MAP, + .poff = LEO_OFF_LD_SS1, + .size = 0x1000 + }, + { + .voff = LEO_UNK_MAP, + .poff = LEO_OFF_UNK, + .size = 0x1000 + }, + { + .voff = LEO_LX_KRN_MAP, + .poff = LEO_OFF_LX_KRN, + .size = 0x1000 + }, + { + .voff = LEO_LC_SS0_KRN_MAP, + .poff = LEO_OFF_LC_SS0_KRN, + .size = 0x1000 + }, + { + .voff = LEO_LC_SS1_KRN_MAP, + .poff = LEO_OFF_LC_SS1_KRN, + .size = 0x1000 + }, + { + .voff = LEO_LD_GBL_MAP, + .poff = LEO_OFF_LD_GBL, + .size = 0x1000 + }, + { + .voff = LEO_UNK2_MAP, + .poff = LEO_OFF_UNK2, + .size = 0x100000 + }, + { .size = 0 } +}; + +static int leo_sbusfb_mmap(struct fb_info *info, struct vm_area_struct *vma) +{ + struct leo_par *par = (struct leo_par *)info->par; + + return sbusfb_mmap_helper(leo_mmap_map, + info->fix.smem_start, info->fix.smem_len, + par->which_io, vma); +} + +static int leo_sbusfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) +{ + return sbusfb_ioctl_helper(cmd, arg, info, + FBTYPE_SUNLEO, 32, info->fix.smem_len); +} + +/* + * Initialisation + */ + +static void +leo_init_fix(struct fb_info *info, struct device_node *dp) +{ + snprintf(info->fix.id, sizeof(info->fix.id), "%pOFn", dp); + + info->fix.type = FB_TYPE_PACKED_PIXELS; + info->fix.visual = FB_VISUAL_TRUECOLOR; + + info->fix.line_length = 8192; + + info->fix.accel = FB_ACCEL_SUN_LEO; +} + +static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl) +{ + struct leo_par *par = (struct leo_par *) info->par; + struct leo_lx_krn __iomem *lx_krn = par->lx_krn; + struct fb_wid_item *wi; + unsigned long flags; + u32 val; + int i, j; + + spin_lock_irqsave(&par->lock, flags); + + leo_wait(lx_krn); + + for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { + switch (wi->wi_type) { + case FB_WID_DBL_8: + j = (wi->wi_index & 0xf) + 0x40; + break; + + case FB_WID_DBL_24: + j = wi->wi_index & 0x3f; + break; + + default: + continue; + } + sbus_writel(0x5800 + j, &lx_krn->krn_type); + sbus_writel(wi->wi_values[0], &lx_krn->krn_value); + } + sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type); + + val = sbus_readl(&lx_krn->krn_csr); + val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); + sbus_writel(val, &lx_krn->krn_csr); + + spin_unlock_irqrestore(&par->lock, flags); +} + +static void leo_init_wids(struct fb_info *info) +{ + struct fb_wid_item wi; + struct fb_wid_list wl; + + wl.wl_count = 1; + wl.wl_list = &wi; + wi.wi_type = FB_WID_DBL_8; + wi.wi_index = 0; + wi.wi_values [0] = 0x2c0; + leo_wid_put(info, &wl); + wi.wi_index = 1; + wi.wi_values [0] = 0x30; + leo_wid_put(info, &wl); + wi.wi_index = 2; + wi.wi_values [0] = 0x20; + leo_wid_put(info, &wl); + wi.wi_type = FB_WID_DBL_24; + wi.wi_index = 1; + wi.wi_values [0] = 0x30; + leo_wid_put(info, &wl); +} + +static void leo_init_hw(struct fb_info *info) +{ + struct leo_par *par = (struct leo_par *) info->par; + u32 val; + + val = sbus_readl(&par->ld_ss1->ss1_misc); + val |= LEO_SS1_MISC_ENABLE; + sbus_writel(val, &par->ld_ss1->ss1_misc); + + leo_switch_from_graph(info); +} + +static void leo_fixup_var_rgb(struct fb_var_screeninfo *var) +{ + var->red.offset = 0; + var->red.length = 8; + var->green.offset = 8; + var->green.length = 8; + var->blue.offset = 16; + var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; +} + +static void leo_unmap_regs(struct platform_device *op, struct fb_info *info, + struct leo_par *par) +{ + if (par->lc_ss0_usr) + of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000); + if (par->ld_ss0) + of_iounmap(&op->resource[0], par->ld_ss0, 0x1000); + if (par->ld_ss1) + of_iounmap(&op->resource[0], par->ld_ss1, 0x1000); + if (par->lx_krn) + of_iounmap(&op->resource[0], par->lx_krn, 0x1000); + if (par->cursor) + of_iounmap(&op->resource[0], + par->cursor, sizeof(struct leo_cursor)); + if (info->screen_base) + of_iounmap(&op->resource[0], info->screen_base, 0x800000); +} + +static int leo_probe(struct platform_device *op) +{ + struct device_node *dp = op->dev.of_node; + struct fb_info *info; + struct leo_par *par; + int linebytes, err; + + info = framebuffer_alloc(sizeof(struct leo_par), &op->dev); + + err = -ENOMEM; + if (!info) + goto out_err; + par = info->par; + + spin_lock_init(&par->lock); + + info->fix.smem_start = op->resource[0].start; + par->which_io = op->resource[0].flags & IORESOURCE_BITS; + + sbusfb_fill_var(&info->var, dp, 32); + leo_fixup_var_rgb(&info->var); + + linebytes = of_getintprop_default(dp, "linebytes", + info->var.xres); + info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres); + + par->lc_ss0_usr = + of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR, + 0x1000, "leolc ss0usr"); + par->ld_ss0 = + of_ioremap(&op->resource[0], LEO_OFF_LD_SS0, + 0x1000, "leold ss0"); + par->ld_ss1 = + of_ioremap(&op->resource[0], LEO_OFF_LD_SS1, + 0x1000, "leold ss1"); + par->lx_krn = + of_ioremap(&op->resource[0], LEO_OFF_LX_KRN, + 0x1000, "leolx krn"); + par->cursor = + of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR, + sizeof(struct leo_cursor), "leolx cursor"); + info->screen_base = + of_ioremap(&op->resource[0], LEO_OFF_SS0, + 0x800000, "leo ram"); + if (!par->lc_ss0_usr || + !par->ld_ss0 || + !par->ld_ss1 || + !par->lx_krn || + !par->cursor || + !info->screen_base) + goto out_unmap_regs; + + info->fbops = &leo_ops; + info->pseudo_palette = par->clut_data; + + leo_init_wids(info); + leo_init_hw(info); + + leo_blank(FB_BLANK_UNBLANK, info); + + if (fb_alloc_cmap(&info->cmap, 256, 0)) + goto out_unmap_regs; + + leo_init_fix(info, dp); + + err = register_framebuffer(info); + if (err < 0) + goto out_dealloc_cmap; + + dev_set_drvdata(&op->dev, info); + + printk(KERN_INFO "%pOF: leo at %lx:%lx\n", + dp, + par->which_io, info->fix.smem_start); + + return 0; + +out_dealloc_cmap: + fb_dealloc_cmap(&info->cmap); + +out_unmap_regs: + leo_unmap_regs(op, info, par); + framebuffer_release(info); + +out_err: + return err; +} + +static void leo_remove(struct platform_device *op) +{ + struct fb_info *info = dev_get_drvdata(&op->dev); + struct leo_par *par = info->par; + + unregister_framebuffer(info); + fb_dealloc_cmap(&info->cmap); + + leo_unmap_regs(op, info, par); + + framebuffer_release(info); +} + +static const struct of_device_id leo_match[] = { + { + .name = "SUNW,leo", + }, + {}, +}; +MODULE_DEVICE_TABLE(of, leo_match); + +static struct platform_driver leo_driver = { + .driver = { + .name = "leo", + .of_match_table = leo_match, + }, + .probe = leo_probe, + .remove = leo_remove, +}; + +static int __init leo_init(void) +{ + if (fb_get_options("leofb", NULL)) + return -ENODEV; + + return platform_driver_register(&leo_driver); +} + +static void __exit leo_exit(void) +{ + platform_driver_unregister(&leo_driver); +} + +module_init(leo_init); +module_exit(leo_exit); + +MODULE_DESCRIPTION("framebuffer driver for LEO chipsets"); +MODULE_AUTHOR("David S. Miller "); +MODULE_VERSION("2.0"); +MODULE_LICENSE("GPL"); -- cgit v1.3.1