diff options
| author | Dan Willemsen <dwillemsen@nvidia.com> | 2011-02-10 00:42:20 -0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:52:13 -0800 |
| commit | a870379bbb0351fff9e9379a1fecd483be537c6f (patch) | |
| tree | ba5530700a565aebfc510a0cb7d8d44a1a08c7b7 | |
| parent | dfe37d54ac9bd327267c618ee53694084fa8548b (diff) | |
video: tegra: add modeset switch to trigger uevents
Original-Change-Id: I3b060b622a593d48319a442072a21d0c4f9527ae
Reviewed-on: http://git-master/r/19049
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Rebase-Id: Ra9c6d91a0cb402b3b660e417a87480b36933a92f
| -rw-r--r-- | drivers/video/tegra/dc/dc.c | 22 | ||||
| -rw-r--r-- | drivers/video/tegra/dc/dc_priv.h | 3 |
2 files changed, 25 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/dc.c b/drivers/video/tegra/dc/dc.c index 930592965628..c7f448e3f3e3 100644 --- a/drivers/video/tegra/dc/dc.c +++ b/drivers/video/tegra/dc/dc.c @@ -33,6 +33,7 @@ #include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/backlight.h> +#include <linux/switch.h> #include <video/tegrafb.h> #include <drm/drm_fixed.h> @@ -1655,6 +1656,9 @@ static int tegra_dc_program_mode(struct tegra_dc *dc, struct tegra_dc_mode *mode tegra_dc_writel(dc, PIXEL_CLK_DIVIDER_PCD1 | SHIFT_CLK_DIVIDER(div), DC_DISP_DISP_CLOCK_CONTROL); + switch_set_state(&dc->modeset_switch, + (mode->h_active << 16) | mode->v_active); + dc->pixel_clk = dc->mode.pclk; return 0; @@ -2545,6 +2549,8 @@ void tegra_dc_disable(struct tegra_dc *dc) _tegra_dc_disable(dc); } + switch_set_state(&dc->modeset_switch, 0); + mutex_unlock(&dc->lock); } @@ -2594,6 +2600,16 @@ unlock: } #endif +static ssize_t switch_modeset_print_mode(struct switch_dev *sdev, char *buf) +{ + struct tegra_dc *dc = + container_of(sdev, struct tegra_dc, modeset_switch); + + if (!sdev->state) + return sprintf(buf, "offline\n"); + + return sprintf(buf, "%dx%d\n", dc->mode.h_active, dc->mode.v_active); +} static int tegra_dc_probe(struct nvhost_device *ndev) { @@ -2709,6 +2725,11 @@ static int tegra_dc_probe(struct nvhost_device *ndev) nvhost_set_drvdata(ndev, dc); + dc->modeset_switch.name = dev_name(&ndev->dev); + dc->modeset_switch.state = 0; + dc->modeset_switch.print_state = switch_modeset_print_mode; + switch_dev_register(&dc->modeset_switch); + if (dc->pdata->default_out) tegra_dc_set_out(dc, dc->pdata->default_out); else @@ -2821,6 +2842,7 @@ static int tegra_dc_remove(struct nvhost_device *ndev) if (dc->enabled) _tegra_dc_disable(dc); + switch_dev_unregister(&dc->modeset_switch); free_irq(dc->irq, dc); clk_put(dc->emc_clk); clk_put(dc->clk); diff --git a/drivers/video/tegra/dc/dc_priv.h b/drivers/video/tegra/dc/dc_priv.h index fcc333fa63d3..6567c859e47b 100644 --- a/drivers/video/tegra/dc/dc_priv.h +++ b/drivers/video/tegra/dc/dc_priv.h @@ -22,6 +22,7 @@ #include <linux/mutex.h> #include <linux/wait.h> #include <linux/completion.h> +#include <linux/switch.h> #include <mach/dc.h> @@ -116,6 +117,8 @@ struct tegra_dc { unsigned long underflow_mask; struct work_struct reset_work; + struct switch_dev modeset_switch; + struct completion frame_end_complete; struct work_struct vblank_work; |