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path: root/drivers/video/fbdev/sa1100fb.c
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Diffstat (limited to 'drivers/video/fbdev/sa1100fb.c')
-rw-r--r--drivers/video/fbdev/sa1100fb.c181
1 files changed, 35 insertions, 146 deletions
diff --git a/drivers/video/fbdev/sa1100fb.c b/drivers/video/fbdev/sa1100fb.c
index 15ae50063296..0d362d2bf0e3 100644
--- a/drivers/video/fbdev/sa1100fb.c
+++ b/drivers/video/fbdev/sa1100fb.c
@@ -18,7 +18,7 @@
* Clean patches should be sent to the ARM Linux Patch System. Please see the
* following web page for more information:
*
- * http://www.arm.linux.org.uk/developer/patches/info.shtml
+ * https://www.arm.linux.org.uk/developer/patches/info.shtml
*
* Thank you.
*
@@ -57,14 +57,14 @@
* - Driver appears to be working for Brutus 320x200x8bpp mode. Other
* resolutions are working, but only the 8bpp mode is supported.
* Changes need to be made to the palette encode and decode routines
- * to support 4 and 16 bpp modes.
+ * to support 4 and 16 bpp modes.
* Driver is not designed to be a module. The FrameBuffer is statically
- * allocated since dynamic allocation of a 300k buffer cannot be
- * guaranteed.
+ * allocated since dynamic allocation of a 300k buffer cannot be
+ * guaranteed.
*
* 1999/06/17:
* - FrameBuffer memory is now allocated at run-time when the
- * driver is initialized.
+ * driver is initialized.
*
* 2000/04/10: Nicolas Pitre <nico@fluxnic.net>
* - Big cleanup for dynamic selection of machine type at run time.
@@ -74,8 +74,8 @@
*
* 2000/08/07: Tak-Shing Chan <tchan.rd@idthk.com>
* Jeff Sutherland <jsutherland@accelent.com>
- * - Resolved an issue caused by a change made to the Assabet's PLD
- * earlier this year which broke the framebuffer driver for newer
+ * - Resolved an issue caused by a change made to the Assabet's PLD
+ * earlier this year which broke the framebuffer driver for newer
* Phase 4 Assabets. Some other parameters were changed to optimize
* for the Sharp display.
*
@@ -102,7 +102,7 @@
* 2000/11/23: Eric Peng <ericpeng@coventive.com>
* - Freebird add
*
- * 2001/02/07: Jamey Hicks <jamey.hicks@compaq.com>
+ * 2001/02/07: Jamey Hicks <jamey.hicks@compaq.com>
* Cliff Brake <cbrake@accelent.com>
* - Added PM callback
*
@@ -173,7 +173,7 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/cpufreq.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/mutex.h>
@@ -184,7 +184,6 @@
#include <mach/hardware.h>
#include <asm/mach-types.h>
-#include <mach/shannon.h>
/*
* Complain if VAR is out of range.
@@ -501,7 +500,7 @@ sa1100fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
* the shortest recovery time
* Suspend
* This refers to a level of power management in which substantial power
- * reduction is achieved by the display. The display can have a longer
+ * reduction is achieved by the display. The display can have a longer
* recovery time from this state than from the Stand-by state
* Off
* This indicates that the display is consuming the lowest level of power
@@ -523,9 +522,9 @@ sa1100fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
*/
/*
* sa1100fb_blank():
- * Blank the display by setting all palette values to zero. Note, the
+ * Blank the display by setting all palette values to zero. Note, the
* 12 and 16 bpp modes don't really use the palette, so this will not
- * blank the display in all modes.
+ * blank the display in all modes.
*/
static int sa1100fb_blank(int blank, struct fb_info *info)
{
@@ -563,6 +562,8 @@ static int sa1100fb_mmap(struct fb_info *info,
container_of(info, struct sa1100fb_info, fb);
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
+ vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
+
if (off < info->fix.smem_len) {
vma->vm_pgoff += 1; /* skip over the palette */
return dma_mmap_wc(fbi->dev, vma, fbi->map_cpu, fbi->map_dma,
@@ -574,16 +575,15 @@ static int sa1100fb_mmap(struct fb_info *info,
return vm_iomap_memory(vma, info->fix.mmio_start, info->fix.mmio_len);
}
-static struct fb_ops sa1100fb_ops = {
+static const struct fb_ops sa1100fb_ops = {
.owner = THIS_MODULE,
+ __FB_DEFAULT_IOMEM_OPS_RDWR,
.fb_check_var = sa1100fb_check_var,
.fb_set_par = sa1100fb_set_par,
// .fb_set_cmap = sa1100fb_set_cmap,
.fb_setcolreg = sa1100fb_setcolreg,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
.fb_blank = sa1100fb_blank,
+ __FB_DEFAULT_IOMEM_OPS_DRAW,
.fb_mmap = sa1100fb_mmap,
};
@@ -604,8 +604,8 @@ static inline unsigned int get_pcd(struct sa1100fb_info *fbi,
/*
* sa1100fb_activate_var():
- * Configures LCD Controller based on entries in var parameter. Settings are
- * only written to the controller if changes were made.
+ * Configures LCD Controller based on entries in var parameter. Settings are
+ * only written to the controller if changes were made.
*/
static int sa1100fb_activate_var(struct fb_var_screeninfo *var, struct sa1100fb_info *fbi)
{
@@ -748,7 +748,7 @@ static void sa1100fb_setup_gpio(struct sa1100fb_info *fbi)
*
* SA1110 spec update nr. 25 says we can and should
* clear LDD15 to 12 for 4 or 8bpp modes with active
- * panels.
+ * panels.
*/
if ((fbi->reg_lccr0 & LCCR0_CMS) == LCCR0_Color &&
(fbi->reg_lccr0 & (LCCR0_Dual|LCCR0_Act)) != 0) {
@@ -799,8 +799,8 @@ static void sa1100fb_enable_controller(struct sa1100fb_info *fbi)
writel_relaxed(fbi->dbar2, fbi->base + DBAR2);
writel_relaxed(fbi->reg_lccr0 | LCCR0_LEN, fbi->base + LCCR0);
- if (machine_is_shannon())
- gpio_set_value(SHANNON_GPIO_DISP_EN, 1);
+ if (fbi->shannon_lcden)
+ gpiod_set_value(fbi->shannon_lcden, 1);
dev_dbg(fbi->dev, "DBAR1: 0x%08x\n", readl_relaxed(fbi->base + DBAR1));
dev_dbg(fbi->dev, "DBAR2: 0x%08x\n", readl_relaxed(fbi->base + DBAR2));
@@ -817,8 +817,8 @@ static void sa1100fb_disable_controller(struct sa1100fb_info *fbi)
dev_dbg(fbi->dev, "Disabling LCD controller\n");
- if (machine_is_shannon())
- gpio_set_value(SHANNON_GPIO_DISP_EN, 0);
+ if (fbi->shannon_lcden)
+ gpiod_set_value(fbi->shannon_lcden, 0);
set_current_state(TASK_UNINTERRUPTIBLE);
add_wait_queue(&fbi->ctrlr_wait, &wait);
@@ -935,7 +935,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state)
*/
if (old_state != C_DISABLE_PM)
break;
- /* fall through */
+ fallthrough;
case C_ENABLE:
/*
@@ -968,44 +968,6 @@ static void sa1100fb_task(struct work_struct *w)
#ifdef CONFIG_CPU_FREQ
/*
- * Calculate the minimum DMA period over all displays that we own.
- * This, together with the SDRAM bandwidth defines the slowest CPU
- * frequency that can be selected.
- */
-static unsigned int sa1100fb_min_dma_period(struct sa1100fb_info *fbi)
-{
-#if 0
- unsigned int min_period = (unsigned int)-1;
- int i;
-
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
- struct display *disp = &fb_display[i];
- unsigned int period;
-
- /*
- * Do we own this display?
- */
- if (disp->fb_info != &fbi->fb)
- continue;
-
- /*
- * Ok, calculate its DMA period
- */
- period = sa1100fb_display_dma_period(&disp->var);
- if (period < min_period)
- min_period = period;
- }
-
- return min_period;
-#else
- /*
- * FIXME: we need to verify _all_ consoles.
- */
- return sa1100fb_display_dma_period(&fbi->fb.var);
-#endif
-}
-
-/*
* CPU clock speed change handler. We need to adjust the LCD timing
* parameters when the CPU clock is adjusted by the power management
* subsystem.
@@ -1030,31 +992,6 @@ sa1100fb_freq_transition(struct notifier_block *nb, unsigned long val,
}
return 0;
}
-
-static int
-sa1100fb_freq_policy(struct notifier_block *nb, unsigned long val,
- void *data)
-{
- struct sa1100fb_info *fbi = TO_INF(nb, freq_policy);
- struct cpufreq_policy *policy = data;
-
- switch (val) {
- case CPUFREQ_ADJUST:
- dev_dbg(fbi->dev, "min dma period: %d ps, "
- "new clock %d kHz\n", sa1100fb_min_dma_period(fbi),
- policy->max);
- /* todo: fill in min/max values */
- break;
- case CPUFREQ_NOTIFY:
- do {} while(0);
- /* todo: panic if min/max values aren't fulfilled
- * [can't really happen unless there's a bug in the
- * CPU policy verififcation process *
- */
- break;
- }
- return 0;
-}
#endif
#ifdef CONFIG_PM
@@ -1084,9 +1021,9 @@ static int sa1100fb_resume(struct platform_device *dev)
/*
* sa1100fb_map_video_memory():
- * Allocates the DRAM memory for the frame buffer. This buffer is
- * remapped into a non-cached, non-buffered, memory region to
- * allow palette and pixel writes to occur without flushing the
+ * Allocates the DRAM memory for the frame buffer. This buffer is
+ * remapped into a non-cached, non-buffered, memory region to
+ * allow palette and pixel writes to occur without flushing the
* cache. Once this area is remapped, all virtual memory
* access to the video memory should occur at the new region.
*/
@@ -1116,7 +1053,7 @@ static int sa1100fb_map_video_memory(struct sa1100fb_info *fbi)
}
/* Fake monspecs to fill in fbinfo structure */
-static struct fb_monspecs monspecs = {
+static const struct fb_monspecs monspecs = {
.hfmin = 30000,
.hfmax = 70000,
.vfmin = 50,
@@ -1153,7 +1090,6 @@ static struct sa1100fb_info *sa1100fb_init_fbinfo(struct device *dev)
fbi->fb.var.vmode = FB_VMODE_NONINTERLACED;
fbi->fb.fbops = &sa1100fb_ops;
- fbi->fb.flags = FBINFO_DEFAULT;
fbi->fb.monspecs = monspecs;
fbi->fb.pseudo_palette = fbi->pseudo_palette;
@@ -1206,7 +1142,6 @@ static struct sa1100fb_info *sa1100fb_init_fbinfo(struct device *dev)
static int sa1100fb_probe(struct platform_device *pdev)
{
struct sa1100fb_info *fbi;
- struct resource *res;
int ret, irq;
if (!dev_get_platdata(&pdev->dev)) {
@@ -1222,8 +1157,7 @@ static int sa1100fb_probe(struct platform_device *pdev)
if (!fbi)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- fbi->base = devm_ioremap_resource(&pdev->dev, res);
+ fbi->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(fbi->base))
return PTR_ERR(fbi->base);
@@ -1238,12 +1172,10 @@ static int sa1100fb_probe(struct platform_device *pdev)
return ret;
}
- if (machine_is_shannon()) {
- ret = devm_gpio_request_one(&pdev->dev, SHANNON_GPIO_DISP_EN,
- GPIOF_OUT_INIT_LOW, "display enable");
- if (ret)
- return ret;
- }
+ fbi->shannon_lcden = gpiod_get_optional(&pdev->dev, "shannon-lcden",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(fbi->shannon_lcden))
+ return PTR_ERR(fbi->shannon_lcden);
/* Initialize video memory */
ret = sa1100fb_map_video_memory(fbi);
@@ -1267,9 +1199,7 @@ static int sa1100fb_probe(struct platform_device *pdev)
#ifdef CONFIG_CPU_FREQ
fbi->freq_transition.notifier_call = sa1100fb_freq_transition;
- fbi->freq_policy.notifier_call = sa1100fb_freq_policy;
cpufreq_register_notifier(&fbi->freq_transition, CPUFREQ_TRANSITION_NOTIFIER);
- cpufreq_register_notifier(&fbi->freq_policy, CPUFREQ_POLICY_NOTIFIER);
#endif
/* This driver cannot be unloaded at the moment */
@@ -1285,7 +1215,7 @@ static struct platform_driver sa1100fb_driver = {
},
};
-int __init sa1100fb_init(void)
+static int __init sa1100fb_init(void)
{
if (fb_get_options("sa1100fb", NULL))
return -ENODEV;
@@ -1293,47 +1223,6 @@ int __init sa1100fb_init(void)
return platform_driver_register(&sa1100fb_driver);
}
-int __init sa1100fb_setup(char *options)
-{
-#if 0
- char *this_opt;
-
- if (!options || !*options)
- return 0;
-
- while ((this_opt = strsep(&options, ",")) != NULL) {
-
- if (!strncmp(this_opt, "bpp:", 4))
- current_par.max_bpp =
- simple_strtoul(this_opt + 4, NULL, 0);
-
- if (!strncmp(this_opt, "lccr0:", 6))
- lcd_shadow.lccr0 =
- simple_strtoul(this_opt + 6, NULL, 0);
- if (!strncmp(this_opt, "lccr1:", 6)) {
- lcd_shadow.lccr1 =
- simple_strtoul(this_opt + 6, NULL, 0);
- current_par.max_xres =
- (lcd_shadow.lccr1 & 0x3ff) + 16;
- }
- if (!strncmp(this_opt, "lccr2:", 6)) {
- lcd_shadow.lccr2 =
- simple_strtoul(this_opt + 6, NULL, 0);
- current_par.max_yres =
- (lcd_shadow.
- lccr0 & LCCR0_SDS) ? ((lcd_shadow.
- lccr2 & 0x3ff) +
- 1) *
- 2 : ((lcd_shadow.lccr2 & 0x3ff) + 1);
- }
- if (!strncmp(this_opt, "lccr3:", 6))
- lcd_shadow.lccr3 =
- simple_strtoul(this_opt + 6, NULL, 0);
- }
-#endif
- return 0;
-}
-
module_init(sa1100fb_init);
MODULE_DESCRIPTION("StrongARM-1100/1110 framebuffer driver");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-26 01:55:57 +0000