xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

imx8/lcd: set iomux pad configuration

Browse source
This commit is contained in:
cinap_lenrek 2022-06-18 12:49:29 +00:00
parent c14962657c
commit 524f8c2d53
1 changed files with 12 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
sys/src/9/imx8/lcd.c
View file

@ -790,8 +790,14 @@ dpiinit(struct video_mode *mode)
static void
backlighton(void)
{
/* gpio1_io10: for panel backlight enable */
iomuxpad("pad_gpio1_io10", "gpio1_io10", "~LVTTL ~HYS ~PUE ~ODE FAST 45_OHM");
/* gpio1_io10 low: panel backlight off */
gpioout(GPIO_PIN(1, 10), 0);
/* pwm2_out: for panel backlight */
iomuxpad("pad_spdif_rx", "pwm2_out", nil);
iomuxpad("pad_spdif_rx", "pwm2_out", "~LVTTL ~HYS ~PUE ~ODE FAST 45_OHM");
setclkrate("pwm2.ipg_clk_high_freq", "osc_25m_ref_clk", Pwmsrcclk);
setclkgate("pwm2.ipg_clk_high_freq", 1);
@ -801,6 +807,9 @@ backlighton(void)
wr(pwm2, PWMSAR, Pwmsrcclk/150000);
wr(pwm2, PWMPR, (Pwmsrcclk/100000)-2);
mr(pwm2, PWMCR, CR_EN, CR_EN);
/* gpio1_io10 high: panel backlight on */
gpioout(GPIO_PIN(1, 10), 1);
}
void
@ -814,19 +823,10 @@ lcdinit(void)
/* GPR13[MIPI_MUX_SEL]: 0 = LCDIF, 1 = DCSS */
iomuxgpr(13, 0, 1<<2);
/* gpio3_io20: sn65dsi86 bridge */
iomuxpad("pad_sai5_rxc", "gpio3_io20", nil);
/* gpio1_io10: for panel */
iomuxpad("pad_gpio1_io10", "gpio1_io10", nil);
/* gpio1_io10 low: panel off */
gpioout(GPIO_PIN(1, 10), 0);
backlighton();
/* gpio1_io10 high: panel on */
gpioout(GPIO_PIN(1, 10), 1);
/* gpio3_io20: sn65dsi86 bridge enable */
iomuxpad("pad_sai5_rxc", "gpio3_io20", "~LVTTL ~HYS ~PUE ~ODE FAST 45_OHM");
/* gpio3_io20 high: bridge on */
gpioout(GPIO_PIN(3, 20), 1);