static void handle_recheck_edid_l(struct tegra_dc_hdmi_data *hdmi)
{
int match, tgt_state, timeout;
tgt_state = HDMI_STATE_RESET;
timeout = 0;
if (hdmi_recheck_edid(hdmi, &match)) {
/* Failed to read EDID. If we still have retry attempts left,
* schedule another attempt. Otherwise give up and reset;
*/
work_state.edid_reads++;
if (work_state.edid_reads >= MAX_EDID_READ_ATTEMPTS) {
pr_info("Failed to read EDID after %d times. Giving up.\n",
work_state.edid_reads);
} else {
tgt_state = HDMI_STATE_DONE_RECHECK_EDID;
timeout = CHECK_EDID_DELAY_MS;
}
} else {
/* Successful read! If the EDID is unchanged, just go back to
* the DONE_ENABLED state and do nothing. If something changed,
* just reset the whole system.
*/
if (match) {
pr_info("No EDID change after HPD bounce, taking no action.\n");
tgt_state = HDMI_STATE_DONE_ENABLED;
if (tegra_is_clk_enabled(hdmi->dc->clk)) {
tegra_nvhdcp_set_plug(hdmi->nvhdcp, 0);
tegra_nvhdcp_set_plug(hdmi->nvhdcp, 1);
} else {
pr_info("dc powergated, skipping hdcp reset\n");
}
timeout = -1;
} else {
pr_info("EDID change after HPD bounce, resetting\n");
}
}
hdmi_state_machine_set_state_l(tgt_state, timeout);
}
/************************************************************
*
* internal state handlers and dispatch table
*
************************************************************/
static void hdmi_disable_l(struct tegra_dc_hdmi_data *hdmi, bool power_gate)
{
#ifdef CONFIG_SWITCH
switch_set_state(&hdmi->audio_switch, 0);
pr_info("%s: audio_switch 0\n", __func__);
switch_set_state(&hdmi->hpd_switch, 0);
pr_info("%s: hpd_switch 0\n", __func__);
#endif
tegra_nvhdcp_set_plug(hdmi->nvhdcp, 0);
if (hdmi->dc->connected) {
pr_info("HDMI from connected to disconnected\n");
hdmi->dc->connected = false;
tegra_dc_disable(hdmi->dc);
tegra_fb_update_monspecs(hdmi->dc->fb, NULL, NULL);
tegra_dc_ext_process_hotplug(hdmi->dc->ndev->id);
}
if (power_gate && tegra_powergate_is_powered(hdmi->dc->powergate_id))
tegra_dc_powergate_locked(hdmi->dc);
}
/************************************************************
*
* internal state handlers and dispatch table
*
************************************************************/
static void hdmi_disable_l(struct tegra_dc_hdmi_data *hdmi)
{
#ifdef CONFIG_SWITCH
switch_set_state(&hdmi->audio_switch, 0);
pr_info("%s: audio_switch 0\n", __func__);
switch_set_state(&hdmi->hpd_switch, 0);
pr_info("%s: hpd_switch 0\n", __func__);
#endif
tegra_nvhdcp_set_plug(hdmi->nvhdcp, 0);
if (hdmi->dc->connected) {
pr_info("HDMI from connected to disconnected\n");
hdmi->dc->connected = false;
tegra_dc_disable(hdmi->dc);
#ifdef CONFIG_ADF_TEGRA
tegra_adf_process_hotplug_disconnected(hdmi->dc->adf);
#endif
#ifdef CONFIG_TEGRA_DC_EXTENSIONS
tegra_fb_update_monspecs(hdmi->dc->fb, NULL, NULL);
tegra_dc_ext_process_hotplug(hdmi->dc->ndev->id);
#endif
}
}