diff options
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/tegra/vic.c | 112 |
1 files changed, 51 insertions, 61 deletions
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c index c9d55a9a3180..c02010ff2b7f 100644 --- a/drivers/gpu/drm/tegra/vic.c +++ b/drivers/gpu/drm/tegra/vic.c @@ -29,7 +29,6 @@ struct vic_config { struct vic { struct falcon falcon; - bool booted; void __iomem *regs; struct tegra_drm_client client; @@ -52,48 +51,6 @@ static void vic_writel(struct vic *vic, u32 value, unsigned int offset) writel(value, vic->regs + offset); } -static int vic_runtime_resume(struct device *dev) -{ - struct vic *vic = dev_get_drvdata(dev); - int err; - - err = clk_prepare_enable(vic->clk); - if (err < 0) - return err; - - usleep_range(10, 20); - - err = reset_control_deassert(vic->rst); - if (err < 0) - goto disable; - - usleep_range(10, 20); - - return 0; - -disable: - clk_disable_unprepare(vic->clk); - return err; -} - -static int vic_runtime_suspend(struct device *dev) -{ - struct vic *vic = dev_get_drvdata(dev); - int err; - - err = reset_control_assert(vic->rst); - if (err < 0) - return err; - - usleep_range(2000, 4000); - - clk_disable_unprepare(vic->clk); - - vic->booted = false; - - return 0; -} - static int vic_boot(struct vic *vic) { #ifdef CONFIG_IOMMU_API @@ -103,9 +60,6 @@ static int vic_boot(struct vic *vic) void *hdr; int err = 0; - if (vic->booted) - return 0; - #ifdef CONFIG_IOMMU_API if (vic->config->supports_sid && spec) { u32 value; @@ -168,8 +122,6 @@ static int vic_boot(struct vic *vic) return err; } - vic->booted = true; - return 0; } @@ -323,35 +275,74 @@ cleanup: return err; } -static int vic_open_channel(struct tegra_drm_client *client, - struct tegra_drm_context *context) + +static int vic_runtime_resume(struct device *dev) { - struct vic *vic = to_vic(client); + struct vic *vic = dev_get_drvdata(dev); int err; - err = pm_runtime_resume_and_get(vic->dev); + err = clk_prepare_enable(vic->clk); if (err < 0) return err; + usleep_range(10, 20); + + err = reset_control_deassert(vic->rst); + if (err < 0) + goto disable; + + usleep_range(10, 20); + err = vic_load_firmware(vic); if (err < 0) - goto rpm_put; + goto assert; err = vic_boot(vic); if (err < 0) - goto rpm_put; + goto assert; + + return 0; + +assert: + reset_control_assert(vic->rst); +disable: + clk_disable_unprepare(vic->clk); + return err; +} + +static int vic_runtime_suspend(struct device *dev) +{ + struct vic *vic = dev_get_drvdata(dev); + int err; + + err = reset_control_assert(vic->rst); + if (err < 0) + return err; + + usleep_range(2000, 4000); + + clk_disable_unprepare(vic->clk); + + return 0; +} + +static int vic_open_channel(struct tegra_drm_client *client, + struct tegra_drm_context *context) +{ + struct vic *vic = to_vic(client); + int err; + + err = pm_runtime_resume_and_get(vic->dev); + if (err < 0) + return err; context->channel = host1x_channel_get(vic->channel); if (!context->channel) { - err = -ENOMEM; - goto rpm_put; + pm_runtime_put(vic->dev); + return -ENOMEM; } return 0; - -rpm_put: - pm_runtime_put(vic->dev); - return err; } static void vic_close_channel(struct tegra_drm_context *context) @@ -359,7 +350,6 @@ static void vic_close_channel(struct tegra_drm_context *context) struct vic *vic = to_vic(context->client); host1x_channel_put(context->channel); - pm_runtime_put(vic->dev); } |