static enum drm_connector_status hdmi_connector_detect(
struct drm_connector *connector, bool force)
{
struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
struct hdmi *hdmi = hdmi_connector->hdmi;
enum drm_connector_status stat_gpio, stat_reg;
int retry = 20;
do {
stat_gpio = detect_gpio(hdmi);
stat_reg = detect_reg(hdmi);
if (stat_gpio == stat_reg)
break;
mdelay(10);
} while (--retry);
/* the status we get from reading gpio seems to be more reliable,
* so trust that one the most if we didn't manage to get hdmi and
* gpio status to agree:
*/
if (stat_gpio != stat_reg) {
DBG("HDMI_HPD_INT_STATUS tells us: %d", stat_reg);
DBG("hpd gpio tells us: %d", stat_gpio);
}
return stat_gpio;
}
static enum drm_connector_status hdmi_connector_detect(
struct drm_connector *connector, bool force)
{
struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);
struct hdmi *hdmi = hdmi_connector->hdmi;
const struct hdmi_platform_config *config = hdmi->config;
struct hdmi_gpio_data hpd_gpio = config->gpios[HPD_GPIO_INDEX];
enum drm_connector_status stat_gpio, stat_reg;
int retry = 20;
/*
* some platforms may not have hpd gpio. Rely only on the status
* provided by REG_HDMI_HPD_INT_STATUS in this case.
*/
if (hpd_gpio.num == -1)
return detect_reg(hdmi);
do {
stat_gpio = detect_gpio(hdmi);
stat_reg = detect_reg(hdmi);
if (stat_gpio == stat_reg)
break;
mdelay(10);
} while (--retry);
/* the status we get from reading gpio seems to be more reliable,
* so trust that one the most if we didn't manage to get hdmi and
* gpio status to agree:
*/
if (stat_gpio != stat_reg) {
DBG("HDMI_HPD_INT_STATUS tells us: %d", stat_reg);
DBG("hpd gpio tells us: %d", stat_gpio);
}
return stat_gpio;
}
