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authorOlof Johansson <olof@lixom.net>2012-11-21 09:58:28 -0800
committerOlof Johansson <olof@lixom.net>2012-11-21 09:58:28 -0800
commit24e93941f26e28b2f884d30dc8bfb4c7c5d905d1 (patch)
tree766d184cbca87d4f3b3a6b5e6e25517143805dfa /drivers/video
parentMerge branch 'depends/gpio-devel' into next/soc (diff)
parentMAINTAINERS: Add ARM CLPS711X entry (diff)
downloadlinux-dev-24e93941f26e28b2f884d30dc8bfb4c7c5d905d1.tar.xz
linux-dev-24e93941f26e28b2f884d30dc8bfb4c7c5d905d1.zip
Merge branch 'clps711x/soc2' into next/soc
From Alexander Shiyan: The main direction of this patchset - approaching the platform to the possibility of using configurations with multiple platforms in a single kernel. Added support of the majority of the necessary kernel symbol. Also part of the driver code used only for the platform was moved to the board code and converted to the use of standard drivers. * clps711x/soc2: MAINTAINERS: Add ARM CLPS711X entry ARM: clps711x: Update defconfig due latest changes and new kernel symbols ARM: clps711x: Rename board files to match functionality ARM: clps711x: edb7211: Add support for NOR-Flash ARM: clps711x: Moving backlight controls of framebuffer driver to the board ARM: clps711x: p720t: Special driver for handling NAND memory is removed ARM: clps711x: Moving power management of framebuffer driver to the board ARM: clps711x: autcpu12: Special driver for handling NAND memory is removed ARM: clps711x: Unused empty "ACK" calls for IRQ-chips removed ARM: clps711x: Add FIQ interrupt handling ARM: clps711x: Implement usage "MULTI_IRQ_HANDLER" kernel option for a platform ARM: clps711x: Implement usage "SPARSE_IRQ" kernel option for a platform ARM: clps711x: cdb89712: Special driver for handling memory is removed ARM: clps711x: Always select AUTO_ZRELADDR for a platform ARM: clps711x: p720t: Unneeded inclusion of head-sa1100.S removed ARM: clps711x: Transform clps711x-framebuffer to platform driver and use it ARM: clps711x: p720t: Using "leds-gpio" driver for LED control ARM: clps711x: Using platform_driver for ethernet device
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/clps711xfb.c156
1 files changed, 19 insertions, 137 deletions
diff --git a/drivers/video/clps711xfb.c b/drivers/video/clps711xfb.c
index f994c8b8f10a..63ecdf8f7baf 100644
--- a/drivers/video/clps711xfb.c
+++ b/drivers/video/clps711xfb.c
@@ -22,19 +22,15 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/init.h>
-#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <linux/uaccess.h>
-#include <mach/syspld.h>
-
struct fb_info *cfb;
#define CMAP_MAX_SIZE 16
@@ -162,44 +158,12 @@ clps7111fb_set_par(struct fb_info *info)
static int clps7111fb_blank(int blank, struct fb_info *info)
{
- if (blank) {
- if (machine_is_edb7211()) {
- /* Turn off the LCD backlight. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD3_LCDBL, PDDR);
-
- /* Power off the LCD DC-DC converter. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD1_LCD_DC_DC_EN, PDDR);
-
- /* Delay for a little while (half a second). */
- udelay(100);
-
- /* Power off the LCD panel. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD2_LCDEN, PDDR);
-
- /* Power off the LCD controller. */
- clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN,
- SYSCON1);
- }
- } else {
- if (machine_is_edb7211()) {
- /* Power up the LCD controller. */
- clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN,
- SYSCON1);
-
- /* Power up the LCD panel. */
- clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR);
-
- /* Delay for a little while. */
- udelay(100);
+ /* Enable/Disable LCD controller. */
+ if (blank)
+ clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, SYSCON1);
+ else
+ clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, SYSCON1);
- /* Power up the LCD DC-DC converter. */
- clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN,
- PDDR);
-
- /* Turn on the LCD backlight. */
- clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR);
- }
- }
return 0;
}
@@ -214,63 +178,7 @@ static struct fb_ops clps7111fb_ops = {
.fb_imageblit = cfb_imageblit,
};
-static int backlight_proc_show(struct seq_file *m, void *v)
-{
- if (machine_is_edb7211()) {
- seq_printf(m, "%d\n",
- (clps_readb(PDDR) & EDB_PD3_LCDBL) ? 1 : 0);
- }
-
- return 0;
-}
-
-static int backlight_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, backlight_proc_show, NULL);
-}
-
-static ssize_t backlight_proc_write(struct file *file, const char *buffer,
- size_t count, loff_t *pos)
-{
- unsigned char char_value;
- int value;
-
- if (count < 1) {
- return -EINVAL;
- }
-
- if (copy_from_user(&char_value, buffer, 1))
- return -EFAULT;
-
- value = char_value - '0';
-
- if (machine_is_edb7211()) {
- unsigned char port_d;
-
- port_d = clps_readb(PDDR);
-
- if (value) {
- port_d |= EDB_PD3_LCDBL;
- } else {
- port_d &= ~EDB_PD3_LCDBL;
- }
-
- clps_writeb(port_d, PDDR);
- }
-
- return count;
-}
-
-static const struct file_operations backlight_proc_fops = {
- .owner = THIS_MODULE,
- .open = backlight_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .write = backlight_proc_write,
-};
-
-static void __init clps711x_guess_lcd_params(struct fb_info *info)
+static void __devinit clps711x_guess_lcd_params(struct fb_info *info)
{
unsigned int lcdcon, syscon, size;
unsigned long phys_base = PAGE_OFFSET;
@@ -358,7 +266,7 @@ static void __init clps711x_guess_lcd_params(struct fb_info *info)
info->fix.type = FB_TYPE_PACKED_PIXELS;
}
-int __init clps711xfb_init(void)
+static int __devinit clps711x_fb_probe(struct platform_device *pdev)
{
int err = -ENOMEM;
@@ -378,55 +286,29 @@ int __init clps711xfb_init(void)
fb_alloc_cmap(&cfb->cmap, CMAP_MAX_SIZE, 0);
- if (!proc_create("backlight", 0444, NULL, &backlight_proc_fops)) {
- printk("Couldn't create the /proc entry for the backlight.\n");
- return -EINVAL;
- }
-
- /*
- * Power up the LCD
- */
- if (machine_is_p720t()) {
- PLD_LCDEN = PLD_LCDEN_EN;
- PLD_PWR |= (PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
- }
-
- if (machine_is_edb7211()) {
- /* Power up the LCD panel. */
- clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR);
-
- /* Delay for a little while. */
- udelay(100);
-
- /* Power up the LCD DC-DC converter. */
- clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN, PDDR);
-
- /* Turn on the LCD backlight. */
- clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR);
- }
-
err = register_framebuffer(cfb);
out: return err;
}
-static void __exit clps711xfb_exit(void)
+static int __devexit clps711x_fb_remove(struct platform_device *pdev)
{
unregister_framebuffer(cfb);
kfree(cfb);
- /*
- * Power down the LCD
- */
- if (machine_is_p720t()) {
- PLD_LCDEN = 0;
- PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
- }
+ return 0;
}
-module_init(clps711xfb_init);
-module_exit(clps711xfb_exit);
+static struct platform_driver clps711x_fb_driver = {
+ .driver = {
+ .name = "video-clps711x",
+ .owner = THIS_MODULE,
+ },
+ .probe = clps711x_fb_probe,
+ .remove = __devexit_p(clps711x_fb_remove),
+};
+module_platform_driver(clps711x_fb_driver);
MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
-MODULE_DESCRIPTION("CLPS711x framebuffer driver");
+MODULE_DESCRIPTION("CLPS711X framebuffer driver");
MODULE_LICENSE("GPL");