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drm/tegra: Fixes for v3.14-rc3

Browse source 
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.
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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'
This commit is contained in:
Dave Airlie 2014-02-20 16:22:25 +10:00
commit 5d7aad03c8
3 changed files with 13 additions and 2 deletions
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2
drivers/gpu/drm/tegra/drm.c
View file

@ -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);

11
drivers/gpu/drm/tegra/rgb.c
View file

@ -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;
}

2
drivers/gpu/host1x/job.c
View file

@ -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;