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sunxi: display: Fix gpio handling to work with the driver-model

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The driver-model gpio functions may return another value then -1 as error,
make the sunxi display code properly handle this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2015-04-22 17:45:59 +02:00
parent a725426929
commit 1572819c5f
1 changed files with 8 additions and 8 deletions
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16
drivers/video/sunxi_display.c
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@ -600,19 +600,19 @@ static void sunxi_lcdc_panel_enable(void)
* white while the lcd inits.
*/
pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_EN);
if (pin != -1) {
if (pin >= 0) {
gpio_request(pin, "lcd_backlight_enable");
gpio_direction_output(pin, 0);
}
pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_PWM);
if (pin != -1) {
if (pin >= 0) {
gpio_request(pin, "lcd_backlight_pwm");
gpio_direction_output(pin, PWM_OFF);
}
reset_pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_RESET);
if (reset_pin != -1) {
if (reset_pin >= 0) {
gpio_request(reset_pin, "lcd_reset");
gpio_direction_output(reset_pin, 0); /* Assert reset */
}
@ -620,12 +620,12 @@ static void sunxi_lcdc_panel_enable(void)
/* Give the backlight some time to turn off and power up the panel. */
mdelay(40);
pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_POWER);
if (pin != -1) {
if (pin >= 0) {
gpio_request(pin, "lcd_power");
gpio_direction_output(pin, 1);
}
if (reset_pin != -1)
if (reset_pin >= 0)
gpio_direction_output(reset_pin, 1); /* De-assert reset */
}
@ -640,11 +640,11 @@ static void sunxi_lcdc_backlight_enable(void)
mdelay(40);
pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_EN);
if (pin != -1)
if (pin >= 0)
gpio_direction_output(pin, 1);
pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_PWM);
if (pin != -1)
if (pin >= 0)
gpio_direction_output(pin, PWM_ON);
}
@ -961,7 +961,7 @@ static void sunxi_vga_external_dac_enable(void)
int pin;
pin = sunxi_name_to_gpio(CONFIG_VIDEO_VGA_EXTERNAL_DAC_EN);
if (pin != -1) {
if (pin >= 0) {
gpio_request(pin, "vga_enable");
gpio_direction_output(pin, 1);
}