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author | Dave Airlie <airlied@redhat.com> | 2018-12-13 10:16:09 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2018-12-13 10:16:25 +1000 |
commit | 29a1da27c4e41c2b4ad85f02bbf412926d4b38df (patch) | |
tree | b9091bb49c0735968217d23e50d0a43db69b9d18 /drivers/gpu/drm/tegra/vic.c | |
parent | Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next (diff) | |
parent | drm/tegra: sor: Reset the SOR if possible (diff) | |
download | linux-dev-29a1da27c4e41c2b4ad85f02bbf412926d4b38df.tar.xz linux-dev-29a1da27c4e41c2b4ad85f02bbf412926d4b38df.zip |
Merge tag 'drm/tegra/for-4.21-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v4.21-rc1
These changes contain a couple of minor fixes for host1x and the Falcon
library in Tegra DRM. There are also a couple of missing pieces that
finally enable support for host1x, VIC and display on Tegra194. I've
also added a patch that enables audio over HDMI using the SOR which has
been tested, and works, on both Tegra186 and Tegra194.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207134712.32683-1-thierry.reding@gmail.com
Diffstat (limited to 'drivers/gpu/drm/tegra/vic.c')
-rw-r--r-- | drivers/gpu/drm/tegra/vic.c | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c index 9f657a63b0bb..d47983deb1cf 100644 --- a/drivers/gpu/drm/tegra/vic.c +++ b/drivers/gpu/drm/tegra/vic.c @@ -38,6 +38,7 @@ struct vic { struct iommu_domain *domain; struct device *dev; struct clk *clk; + struct reset_control *rst; /* Platform configuration */ const struct vic_config *config; @@ -56,13 +57,37 @@ static void vic_writel(struct vic *vic, u32 value, unsigned int 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; - return clk_prepare_enable(vic->clk); +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); @@ -282,10 +307,18 @@ static const struct vic_config vic_t186_config = { .version = 0x18, }; +#define NVIDIA_TEGRA_194_VIC_FIRMWARE "nvidia/tegra194/vic.bin" + +static const struct vic_config vic_t194_config = { + .firmware = NVIDIA_TEGRA_194_VIC_FIRMWARE, + .version = 0x19, +}; + static const struct of_device_id vic_match[] = { { .compatible = "nvidia,tegra124-vic", .data = &vic_t124_config }, { .compatible = "nvidia,tegra210-vic", .data = &vic_t210_config }, { .compatible = "nvidia,tegra186-vic", .data = &vic_t186_config }, + { .compatible = "nvidia,tegra194-vic", .data = &vic_t194_config }, { }, }; @@ -323,6 +356,14 @@ static int vic_probe(struct platform_device *pdev) return PTR_ERR(vic->clk); } + if (!dev->pm_domain) { + vic->rst = devm_reset_control_get(dev, "vic"); + if (IS_ERR(vic->rst)) { + dev_err(&pdev->dev, "failed to get reset\n"); + return PTR_ERR(vic->rst); + } + } + vic->falcon.dev = dev; vic->falcon.regs = vic->regs; vic->falcon.ops = &vic_falcon_ops; @@ -418,3 +459,6 @@ MODULE_FIRMWARE(NVIDIA_TEGRA_210_VIC_FIRMWARE); #if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC) MODULE_FIRMWARE(NVIDIA_TEGRA_186_VIC_FIRMWARE); #endif +#if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) +MODULE_FIRMWARE(NVIDIA_TEGRA_194_VIC_FIRMWARE); +#endif |