Merge tag 'drm/for-3.14-rc3' of git://anongit.freedesktop.org/tegra/linux into drm-fixes

drm/tegra: Fixes for v3.14-rc3

These patches contain a fix for a potential hang when the RGB output is
disabled twice, a typofix that prevents the framebuffer console from
being restored on ->lastclose() and an optimization to do as little work
as possible during host1x job submission.

* tag 'drm/for-3.14-rc3' of git://anongit.freedesktop.org/tegra/linux:
  drm/tegra: Add guard to avoid double disable/enable of RGB outputs
  gpu: host1x: do not check previously handled gathers
  drm/tegra: fix typo 'CONFIG_TEGRA_DRM_FBDEV'

3 files changed, 13 insertions, 2 deletions

diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 88a529008ce0..c71594754f46 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -104,7 +104,7 @@ static void tegra_drm_context_free(struct tegra_drm_context *context)
 
 static void tegra_drm_lastclose(struct drm_device *drm)
 {
-#ifdef CONFIG_TEGRA_DRM_FBDEV
+#ifdef CONFIG_DRM_TEGRA_FBDEV
         struct tegra_drm *tegra = drm->dev_private;
 
         tegra_fbdev_restore_mode(tegra->fbdev);
diff --git a/drivers/gpu/drm/tegra/rgb.c b/drivers/gpu/drm/tegra/rgb.c
index 338f7f6561d7..0266fb40479e 100644
--- a/drivers/gpu/drm/tegra/rgb.c
+++ b/drivers/gpu/drm/tegra/rgb.c
@@ -15,6 +15,7 @@
 struct tegra_rgb {
         struct tegra_output output;
         struct tegra_dc *dc;
+        bool enabled;
 
         struct clk *clk_parent;
         struct clk *clk;
@@ -89,6 +90,9 @@ static int tegra_output_rgb_enable(struct tegra_output *output)
         struct tegra_rgb *rgb = to_rgb(output);
         unsigned long value;
 
+        if (rgb->enabled)
+                return 0;
+
         tegra_dc_write_regs(rgb->dc, rgb_enable, ARRAY_SIZE(rgb_enable));
 
         value = DE_SELECT_ACTIVE | DE_CONTROL_NORMAL;
@@ -122,6 +126,8 @@ static int tegra_output_rgb_enable(struct tegra_output *output)
         tegra_dc_writel(rgb->dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
         tegra_dc_writel(rgb->dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
 
+        rgb->enabled = true;
+
         return 0;
 }
 
@@ -130,6 +136,9 @@ static int tegra_output_rgb_disable(struct tegra_output *output)
         struct tegra_rgb *rgb = to_rgb(output);
         unsigned long value;
 
+        if (!rgb->enabled)
+                return 0;
+
         value = tegra_dc_readl(rgb->dc, DC_CMD_DISPLAY_POWER_CONTROL);
         value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE |
                    PW4_ENABLE | PM0_ENABLE | PM1_ENABLE);
@@ -144,6 +153,8 @@ static int tegra_output_rgb_disable(struct tegra_output *output)
 
         tegra_dc_write_regs(rgb->dc, rgb_disable, ARRAY_SIZE(rgb_disable));
 
+        rgb->enabled = false;
+
         return 0;
 }
 
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 1146e3bba6e1..112f27e51bc7 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -538,7 +538,7 @@ int host1x_job_pin(struct host1x_job *job, struct device *dev)
 
                 g->base = job->gather_addr_phys[i];
 
-                for (j = 0; j < job->num_gathers; j++)
+                for (j = i + 1; j < job->num_gathers; j++)
                         if (job->gathers[j].bo == g->bo)
                                 job->gathers[j].handled = true;