anarsoul's blog

Finaly! I find out how to disable LCD without leaving garbage on it! It's time to polish my patches and send them upstream :) I've used haret to capture gpio values. Here's code to disable LCD sanely: /* GPC11-GPC15->OUTPUT */ s3c2410_gpio_cfgpin(S3C2410_GPC11, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(S3C2410_GPC12, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(S3C2410_GPC13, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(S3C2410_GPC14, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpin(S3C2410_GPC15, S3C2410_GPIO_OUTPUT); /* GPC11-GPC15->1 */ s3c2410_gpio_setpin(S3C2410_GPC8, 1); s3c2410_gpio_setpin(S3C2410_GPC9, 1); s3c2410_gpio_setpin(S3C2410_GPC10, 1); s3c2410_gpio_setpin(S3C2410_GPC11, 1); s3c2410_gpio_setpin(S3C2410_GPC12, 1); s3c2410_gpio_setpin(S3C2410_GPC13, 1); s3c2410_gpio_setpin(S3C2410_GPC14, 1); s3c2410_gpio_setpin(S3C2410_GPC15, 1); /* Wait a bit here... */ mdelay(100); /* GPD2-GPD7->OUTPUT */ s3c2410_gpio_cfgpin(S3C2410_GPD2, S3C2410_GPIO_OUTPUT); s3c2410_gpio_cfgpi...

One more annoying issue was fixed tonight :) No more LCD flickering after resume! :) Problem was in timer1. rx1950 uses it somehow for clocking LCD (Don't know how :)). After booting from windows, linux reuse windows' timer settings, but these settings were lost after suspend/resume. Solution is simple: reconfigure timer1 in rx1950_lcd_power (some bits of TCON, TCFG0, TCFG1, regs TCNTB1, TCMPB1). Patch will be available as soon as embedded.net.ru get up :) One more hint: To get rid of 270 degrees screen rotation add following lines at the exports section  of /etc/init.d/opie: export QWS_DISPLAY=LinuxFb:Transformed export QWS_SIZE=240x320