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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-02 20:12:54 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-02 20:12:54 -0800 |
| commit | 17b02809cfa77abcab155ce3afbb1467e7f0744f (patch) | |
| tree | 4bb7b08fa29e73fb29a8e56fec766643b1eaa82e /drivers/gpu/drm/tegra/rgb.c | |
| parent | 9cd02bd876d3b1a5a93f0c9376f578bde03a6b26 (diff) | |
| parent | 0414855fdc4a40da05221fc6062cccbc0c30f169 (diff) | |
| download | op-kernel-dev-17b02809cfa77abcab155ce3afbb1467e7f0744f.zip op-kernel-dev-17b02809cfa77abcab155ce3afbb1467e7f0744f.tar.gz | |
Merge 3.14-rc5 into staging-next
We want those fixes in here
Diffstat (limited to 'drivers/gpu/drm/tegra/rgb.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/rgb.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/rgb.c b/drivers/gpu/drm/tegra/rgb.c index 338f7f6..0266fb4 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; } |
