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video: tegra: add hdmi switch_dev for hotplug notifications

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Change-Id: I0454179633835d35367bc5c28513319e3aa6a069
Signed-off-by: Erik Gilling <konkers@android.com>
This commit is contained in:
Erik Gilling
2010-10-18 15:38:22 -07:00
parent 3a44a94cab
commit 831bbd76da
1 changed files with 14 additions and 2 deletions
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16
drivers/video/tegra/dc/hdmi.c
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@@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/switch.h>
#include <linux/workqueue.h>
#include <mach/clk.h>
@@ -52,6 +53,8 @@ struct tegra_dc_hdmi_data {
struct clk *disp1_clk;
struct clk *disp2_clk;
struct switch_dev hpd_switch;
};
const struct fb_videomode tegra_dc_hdmi_supported_modes[] = {
@@ -431,12 +434,12 @@ static bool tegra_dc_hdmi_detect(struct tegra_dc *dc)
int err;
if (!tegra_dc_hdmi_hpd(dc))
return false;
goto fail;
err = tegra_edid_get_monspecs(hdmi->edid, &specs);
if (err < 0) {
dev_err(&dc->ndev->dev, "error reading edid\n");
return false;
goto fail;
}
/* monitors like to lie about these but they are still useful for
@@ -446,8 +449,13 @@ static bool tegra_dc_hdmi_detect(struct tegra_dc *dc)
dc->out->v_size = specs.max_y * 1000;
tegra_fb_update_monspecs(dc->fb, &specs, tegra_dc_hdmi_mode_filter);
switch_set_state(&hdmi->hpd_switch, 1);
dev_info(&dc->ndev->dev, "display detected\n");
return true;
fail:
switch_set_state(&hdmi->hpd_switch, 0);
return false;
}
@@ -557,6 +565,9 @@ static int tegra_dc_hdmi_init(struct tegra_dc *dc)
hdmi->disp1_clk = disp1_clk;
hdmi->disp2_clk = disp2_clk;
hdmi->hpd_switch.name = "hdmi";
switch_dev_register(&hdmi->hpd_switch);
dc->out->depth = 24;
tegra_dc_set_outdata(dc, hdmi);
@@ -587,6 +598,7 @@ static void tegra_dc_hdmi_destroy(struct tegra_dc *dc)
free_irq(gpio_to_irq(dc->out->hotplug_gpio), dc);
cancel_delayed_work_sync(&hdmi->work);
switch_dev_unregister(&hdmi->hpd_switch);
iounmap(hdmi->base);
release_resource(hdmi->base_res);
clk_put(hdmi->clk);