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Date: Tue, 24 Mar 2020 14:45:08 +0100
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To: linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Cc: Andrzej Hajda <a.hajda@...sung.com>,
Sam Ravnborg <sam@...nborg.org>, b.zolnierkie@...sung.com
Subject: [PATCH v2 6/6] video: fbdev: controlfb: remove function prototypes
part #3
Reorder code a bit and then remove no longer needed function
prototypes.
Acked-by: Sam Ravnborg <sam@...nborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
---
drivers/video/fbdev/controlfb.c | 302 +++++++++++++++-----------------
1 file changed, 145 insertions(+), 157 deletions(-)
diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c
index c67d37103705..7f8f0081396e 100644
--- a/drivers/video/fbdev/controlfb.c
+++ b/drivers/video/fbdev/controlfb.c
@@ -141,16 +141,6 @@ struct fb_info_control {
#define CNTRL_REG(INFO,REG) (&(((INFO)->control_regs->REG).r))
-/******************** Prototypes for internal functions **********************/
-
-static void control_set_hardware(struct fb_info_control *p,
- struct fb_par_control *par);
-static int control_var_to_par(struct fb_var_screeninfo *var,
- struct fb_par_control *par, const struct fb_info *fb_info);
-static inline void control_par_to_var(struct fb_par_control *par,
- struct fb_var_screeninfo *var);
-
-
/************************** Internal variables *******************************/
static struct fb_info_control *control_fb;
@@ -159,153 +149,6 @@ static int default_vmode __initdata = VMODE_NVRAM;
static int default_cmode __initdata = CMODE_NVRAM;
-/******************** The functions for controlfb_ops ********************/
-
-/*
- * Checks a var structure
- */
-static int controlfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
-{
- struct fb_par_control par;
- int err;
-
- err = control_var_to_par(var, &par, info);
- if (err)
- return err;
- control_par_to_var(&par, var);
-
- return 0;
-}
-
-/*
- * Applies current var to display
- */
-static int controlfb_set_par (struct fb_info *info)
-{
- struct fb_info_control *p =
- container_of(info, struct fb_info_control, info);
- struct fb_par_control par;
- int err;
-
- if((err = control_var_to_par(&info->var, &par, info))) {
- printk (KERN_ERR "controlfb_set_par: error calling"
- " control_var_to_par: %d.\n", err);
- return err;
- }
-
- control_set_hardware(p, &par);
-
- info->fix.visual = (p->par.cmode == CMODE_8) ?
- FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
- info->fix.line_length = p->par.pitch;
- info->fix.xpanstep = 32 >> p->par.cmode;
- info->fix.ypanstep = 1;
-
- return 0;
-}
-
-/*
- * Set screen start address according to var offset values
- */
-static inline void set_screen_start(int xoffset, int yoffset,
- struct fb_info_control *p)
-{
- struct fb_par_control *par = &p->par;
-
- par->xoffset = xoffset;
- par->yoffset = yoffset;
- out_le32(CNTRL_REG(p,start_addr),
- par->yoffset * par->pitch + (par->xoffset << par->cmode));
-}
-
-
-static int controlfb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
- unsigned int xoffset, hstep;
- struct fb_info_control *p =
- container_of(info, struct fb_info_control, info);
- struct fb_par_control *par = &p->par;
-
- /*
- * make sure start addr will be 32-byte aligned
- */
- hstep = 0x1f >> par->cmode;
- xoffset = (var->xoffset + hstep) & ~hstep;
-
- if (xoffset+par->xres > par->vxres ||
- var->yoffset+par->yres > par->vyres)
- return -EINVAL;
-
- set_screen_start(xoffset, var->yoffset, p);
-
- return 0;
-}
-
-
-/*
- * Private mmap since we want to have a different caching on the framebuffer
- * for controlfb.
- * Note there's no locking in here; it's done in fb_mmap() in fbmem.c.
- */
-static int controlfb_mmap(struct fb_info *info,
- struct vm_area_struct *vma)
-{
- unsigned long mmio_pgoff;
- unsigned long start;
- u32 len;
-
- start = info->fix.smem_start;
- len = info->fix.smem_len;
- mmio_pgoff = PAGE_ALIGN((start & ~PAGE_MASK) + len) >> PAGE_SHIFT;
- if (vma->vm_pgoff >= mmio_pgoff) {
- if (info->var.accel_flags)
- return -EINVAL;
- vma->vm_pgoff -= mmio_pgoff;
- start = info->fix.mmio_start;
- len = info->fix.mmio_len;
- vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
- } else {
- /* framebuffer */
- vma->vm_page_prot = pgprot_cached_wthru(vma->vm_page_prot);
- }
-
- return vm_iomap_memory(vma, start, len);
-}
-
-static int controlfb_blank(int blank_mode, struct fb_info *info)
-{
- struct fb_info_control __maybe_unused *p =
- container_of(info, struct fb_info_control, info);
- unsigned ctrl;
-
- ctrl = in_le32(CNTRL_REG(p, ctrl));
- if (blank_mode > 0)
- switch (blank_mode) {
- case FB_BLANK_VSYNC_SUSPEND:
- ctrl &= ~3;
- break;
- case FB_BLANK_HSYNC_SUSPEND:
- ctrl &= ~0x30;
- break;
- case FB_BLANK_POWERDOWN:
- ctrl &= ~0x33;
- /* fall through */
- case FB_BLANK_NORMAL:
- ctrl |= 0x400;
- break;
- default:
- break;
- }
- else {
- ctrl &= ~0x400;
- ctrl |= 0x33;
- }
- out_le32(CNTRL_REG(p,ctrl), ctrl);
-
- return 0;
-}
-
static int controlfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
u_int transp, struct fb_info *info)
{
@@ -362,6 +205,20 @@ static void set_control_clock(unsigned char *params)
#endif
}
+/*
+ * Set screen start address according to var offset values
+ */
+static inline void set_screen_start(int xoffset, int yoffset,
+ struct fb_info_control *p)
+{
+ struct fb_par_control *par = &p->par;
+
+ par->xoffset = xoffset;
+ par->yoffset = yoffset;
+ out_le32(CNTRL_REG(p,start_addr),
+ par->yoffset * par->pitch + (par->xoffset << par->cmode));
+}
+
#define RADACAL_WRITE(a,d) \
out_8(&p->cmap_regs->addr, (a)); \
out_8(&p->cmap_regs->dat, (d))
@@ -772,6 +629,137 @@ static inline void control_par_to_var(struct fb_par_control *par,
var->pixclock >>= par->regvals.clock_params[2];
}
+/******************** The functions for controlfb_ops ********************/
+
+/*
+ * Checks a var structure
+ */
+static int controlfb_check_var (struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct fb_par_control par;
+ int err;
+
+ err = control_var_to_par(var, &par, info);
+ if (err)
+ return err;
+ control_par_to_var(&par, var);
+
+ return 0;
+}
+
+/*
+ * Applies current var to display
+ */
+static int controlfb_set_par (struct fb_info *info)
+{
+ struct fb_info_control *p =
+ container_of(info, struct fb_info_control, info);
+ struct fb_par_control par;
+ int err;
+
+ if((err = control_var_to_par(&info->var, &par, info))) {
+ printk (KERN_ERR "controlfb_set_par: error calling"
+ " control_var_to_par: %d.\n", err);
+ return err;
+ }
+
+ control_set_hardware(p, &par);
+
+ info->fix.visual = (p->par.cmode == CMODE_8) ?
+ FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
+ info->fix.line_length = p->par.pitch;
+ info->fix.xpanstep = 32 >> p->par.cmode;
+ info->fix.ypanstep = 1;
+
+ return 0;
+}
+
+static int controlfb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ unsigned int xoffset, hstep;
+ struct fb_info_control *p =
+ container_of(info, struct fb_info_control, info);
+ struct fb_par_control *par = &p->par;
+
+ /*
+ * make sure start addr will be 32-byte aligned
+ */
+ hstep = 0x1f >> par->cmode;
+ xoffset = (var->xoffset + hstep) & ~hstep;
+
+ if (xoffset+par->xres > par->vxres ||
+ var->yoffset+par->yres > par->vyres)
+ return -EINVAL;
+
+ set_screen_start(xoffset, var->yoffset, p);
+
+ return 0;
+}
+
+static int controlfb_blank(int blank_mode, struct fb_info *info)
+{
+ struct fb_info_control __maybe_unused *p =
+ container_of(info, struct fb_info_control, info);
+ unsigned ctrl;
+
+ ctrl = in_le32(CNTRL_REG(p, ctrl));
+ if (blank_mode > 0)
+ switch (blank_mode) {
+ case FB_BLANK_VSYNC_SUSPEND:
+ ctrl &= ~3;
+ break;
+ case FB_BLANK_HSYNC_SUSPEND:
+ ctrl &= ~0x30;
+ break;
+ case FB_BLANK_POWERDOWN:
+ ctrl &= ~0x33;
+ /* fall through */
+ case FB_BLANK_NORMAL:
+ ctrl |= 0x400;
+ break;
+ default:
+ break;
+ }
+ else {
+ ctrl &= ~0x400;
+ ctrl |= 0x33;
+ }
+ out_le32(CNTRL_REG(p,ctrl), ctrl);
+
+ return 0;
+}
+
+/*
+ * Private mmap since we want to have a different caching on the framebuffer
+ * for controlfb.
+ * Note there's no locking in here; it's done in fb_mmap() in fbmem.c.
+ */
+static int controlfb_mmap(struct fb_info *info,
+ struct vm_area_struct *vma)
+{
+ unsigned long mmio_pgoff;
+ unsigned long start;
+ u32 len;
+
+ start = info->fix.smem_start;
+ len = info->fix.smem_len;
+ mmio_pgoff = PAGE_ALIGN((start & ~PAGE_MASK) + len) >> PAGE_SHIFT;
+ if (vma->vm_pgoff >= mmio_pgoff) {
+ if (info->var.accel_flags)
+ return -EINVAL;
+ vma->vm_pgoff -= mmio_pgoff;
+ start = info->fix.mmio_start;
+ len = info->fix.mmio_len;
+ vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+ } else {
+ /* framebuffer */
+ vma->vm_page_prot = pgprot_cached_wthru(vma->vm_page_prot);
+ }
+
+ return vm_iomap_memory(vma, start, len);
+}
+
static const struct fb_ops controlfb_ops = {
.owner = THIS_MODULE,
.fb_check_var = controlfb_check_var,
--
2.24.1
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