diff options
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/clps711xfb.c | 156 |
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 @@ | |||
22 | #include <linux/mm.h> | 22 | #include <linux/mm.h> |
23 | #include <linux/module.h> | 23 | #include <linux/module.h> |
24 | #include <linux/kernel.h> | 24 | #include <linux/kernel.h> |
25 | #include <linux/seq_file.h> | ||
26 | #include <linux/slab.h> | 25 | #include <linux/slab.h> |
27 | #include <linux/fb.h> | 26 | #include <linux/fb.h> |
28 | #include <linux/init.h> | 27 | #include <linux/init.h> |
29 | #include <linux/proc_fs.h> | ||
30 | #include <linux/delay.h> | 28 | #include <linux/delay.h> |
31 | 29 | ||
32 | #include <mach/hardware.h> | 30 | #include <mach/hardware.h> |
33 | #include <asm/mach-types.h> | 31 | #include <asm/mach-types.h> |
34 | #include <linux/uaccess.h> | 32 | #include <linux/uaccess.h> |
35 | 33 | ||
36 | #include <mach/syspld.h> | ||
37 | |||
38 | struct fb_info *cfb; | 34 | struct fb_info *cfb; |
39 | 35 | ||
40 | #define CMAP_MAX_SIZE 16 | 36 | #define CMAP_MAX_SIZE 16 |
@@ -162,44 +158,12 @@ clps7111fb_set_par(struct fb_info *info) | |||
162 | 158 | ||
163 | static int clps7111fb_blank(int blank, struct fb_info *info) | 159 | static int clps7111fb_blank(int blank, struct fb_info *info) |
164 | { | 160 | { |
165 | if (blank) { | 161 | /* Enable/Disable LCD controller. */ |
166 | if (machine_is_edb7211()) { | 162 | if (blank) |
167 | /* Turn off the LCD backlight. */ | 163 | clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, SYSCON1); |
168 | clps_writeb(clps_readb(PDDR) & ~EDB_PD3_LCDBL, PDDR); | 164 | else |
169 | 165 | clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, SYSCON1); | |
170 | /* Power off the LCD DC-DC converter. */ | ||
171 | clps_writeb(clps_readb(PDDR) & ~EDB_PD1_LCD_DC_DC_EN, PDDR); | ||
172 | |||
173 | /* Delay for a little while (half a second). */ | ||
174 | udelay(100); | ||
175 | |||
176 | /* Power off the LCD panel. */ | ||
177 | clps_writeb(clps_readb(PDDR) & ~EDB_PD2_LCDEN, PDDR); | ||
178 | |||
179 | /* Power off the LCD controller. */ | ||
180 | clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, | ||
181 | SYSCON1); | ||
182 | } | ||
183 | } else { | ||
184 | if (machine_is_edb7211()) { | ||
185 | /* Power up the LCD controller. */ | ||
186 | clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, | ||
187 | SYSCON1); | ||
188 | |||
189 | /* Power up the LCD panel. */ | ||
190 | clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR); | ||
191 | |||
192 | /* Delay for a little while. */ | ||
193 | udelay(100); | ||
194 | 166 | ||
195 | /* Power up the LCD DC-DC converter. */ | ||
196 | clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN, | ||
197 | PDDR); | ||
198 | |||
199 | /* Turn on the LCD backlight. */ | ||
200 | clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR); | ||
201 | } | ||
202 | } | ||
203 | return 0; | 167 | return 0; |
204 | } | 168 | } |
205 | 169 | ||
@@ -214,63 +178,7 @@ static struct fb_ops clps7111fb_ops = { | |||
214 | .fb_imageblit = cfb_imageblit, | 178 | .fb_imageblit = cfb_imageblit, |
215 | }; | 179 | }; |
216 | 180 | ||
217 | static int backlight_proc_show(struct seq_file *m, void *v) | 181 | static void __devinit clps711x_guess_lcd_params(struct fb_info *info) |
218 | { | ||
219 | if (machine_is_edb7211()) { | ||
220 | seq_printf(m, "%d\n", | ||
221 | (clps_readb(PDDR) & EDB_PD3_LCDBL) ? 1 : 0); | ||
222 | } | ||
223 | |||
224 | return 0; | ||
225 | } | ||
226 | |||
227 | static int backlight_proc_open(struct inode *inode, struct file *file) | ||
228 | { | ||
229 | return single_open(file, backlight_proc_show, NULL); | ||
230 | } | ||
231 | |||
232 | static ssize_t backlight_proc_write(struct file *file, const char *buffer, | ||
233 | size_t count, loff_t *pos) | ||
234 | { | ||
235 | unsigned char char_value; | ||
236 | int value; | ||
237 | |||
238 | if (count < 1) { | ||
239 | return -EINVAL; | ||
240 | } | ||
241 | |||
242 | if (copy_from_user(&char_value, buffer, 1)) | ||
243 | return -EFAULT; | ||
244 | |||
245 | value = char_value - '0'; | ||
246 | |||
247 | if (machine_is_edb7211()) { | ||
248 | unsigned char port_d; | ||
249 | |||
250 | port_d = clps_readb(PDDR); | ||
251 | |||
252 | if (value) { | ||
253 | port_d |= EDB_PD3_LCDBL; | ||
254 | } else { | ||
255 | port_d &= ~EDB_PD3_LCDBL; | ||
256 | } | ||
257 | |||
258 | clps_writeb(port_d, PDDR); | ||
259 | } | ||
260 | |||
261 | return count; | ||
262 | } | ||
263 | |||
264 | static const struct file_operations backlight_proc_fops = { | ||
265 | .owner = THIS_MODULE, | ||
266 | .open = backlight_proc_open, | ||
267 | .read = seq_read, | ||
268 | .llseek = seq_lseek, | ||
269 | .release = single_release, | ||
270 | .write = backlight_proc_write, | ||
271 | }; | ||
272 | |||
273 | static void __init clps711x_guess_lcd_params(struct fb_info *info) | ||
274 | { | 182 | { |
275 | unsigned int lcdcon, syscon, size; | 183 | unsigned int lcdcon, syscon, size; |
276 | unsigned long phys_base = PAGE_OFFSET; | 184 | unsigned long phys_base = PAGE_OFFSET; |
@@ -358,7 +266,7 @@ static void __init clps711x_guess_lcd_params(struct fb_info *info) | |||
358 | info->fix.type = FB_TYPE_PACKED_PIXELS; | 266 | info->fix.type = FB_TYPE_PACKED_PIXELS; |
359 | } | 267 | } |
360 | 268 | ||
361 | int __init clps711xfb_init(void) | 269 | static int __devinit clps711x_fb_probe(struct platform_device *pdev) |
362 | { | 270 | { |
363 | int err = -ENOMEM; | 271 | int err = -ENOMEM; |
364 | 272 | ||
@@ -378,55 +286,29 @@ int __init clps711xfb_init(void) | |||
378 | 286 | ||
379 | fb_alloc_cmap(&cfb->cmap, CMAP_MAX_SIZE, 0); | 287 | fb_alloc_cmap(&cfb->cmap, CMAP_MAX_SIZE, 0); |
380 | 288 | ||
381 | if (!proc_create("backlight", 0444, NULL, &backlight_proc_fops)) { | ||
382 | printk("Couldn't create the /proc entry for the backlight.\n"); | ||
383 | return -EINVAL; | ||
384 | } | ||
385 | |||
386 | /* | ||
387 | * Power up the LCD | ||
388 | */ | ||
389 | if (machine_is_p720t()) { | ||
390 | PLD_LCDEN = PLD_LCDEN_EN; | ||
391 | PLD_PWR |= (PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); | ||
392 | } | ||
393 | |||
394 | if (machine_is_edb7211()) { | ||
395 | /* Power up the LCD panel. */ | ||
396 | clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR); | ||
397 | |||
398 | /* Delay for a little while. */ | ||
399 | udelay(100); | ||
400 | |||
401 | /* Power up the LCD DC-DC converter. */ | ||
402 | clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN, PDDR); | ||
403 | |||
404 | /* Turn on the LCD backlight. */ | ||
405 | clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR); | ||
406 | } | ||
407 | |||
408 | err = register_framebuffer(cfb); | 289 | err = register_framebuffer(cfb); |
409 | 290 | ||
410 | out: return err; | 291 | out: return err; |
411 | } | 292 | } |
412 | 293 | ||
413 | static void __exit clps711xfb_exit(void) | 294 | static int __devexit clps711x_fb_remove(struct platform_device *pdev) |
414 | { | 295 | { |
415 | unregister_framebuffer(cfb); | 296 | unregister_framebuffer(cfb); |
416 | kfree(cfb); | 297 | kfree(cfb); |
417 | 298 | ||
418 | /* | 299 | return 0; |
419 | * Power down the LCD | ||
420 | */ | ||
421 | if (machine_is_p720t()) { | ||
422 | PLD_LCDEN = 0; | ||
423 | PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); | ||
424 | } | ||
425 | } | 300 | } |
426 | 301 | ||
427 | module_init(clps711xfb_init); | 302 | static struct platform_driver clps711x_fb_driver = { |
428 | module_exit(clps711xfb_exit); | 303 | .driver = { |
304 | .name = "video-clps711x", | ||
305 | .owner = THIS_MODULE, | ||
306 | }, | ||
307 | .probe = clps711x_fb_probe, | ||
308 | .remove = __devexit_p(clps711x_fb_remove), | ||
309 | }; | ||
310 | module_platform_driver(clps711x_fb_driver); | ||
429 | 311 | ||
430 | MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); | 312 | MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); |
431 | MODULE_DESCRIPTION("CLPS711x framebuffer driver"); | 313 | MODULE_DESCRIPTION("CLPS711X framebuffer driver"); |
432 | MODULE_LICENSE("GPL"); | 314 | MODULE_LICENSE("GPL"); |