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gpu: nvgpu: add CONFIG_NVGPU_TEGRA_FUSE

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Encapsulate the tegra fuse functionality under the config flag
CONFIG_NVGPU_TEGRA_FUSE.

Bug 2834141

Change-Id: I54c9e82360e8a24008ea14eb55af80f81d325cdc
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2306432
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sagar Kamble
2020-02-28 21:25:59 +05:30
committed by Alex Waterman
parent 3748be5792
commit 59c6947fc6
30 changed files with 209 additions and 36 deletions
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11
drivers/gpu/nvgpu/os/linux/module.c
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@@ -31,11 +31,13 @@
#include <linux/of_gpio.h>
#include <uapi/linux/nvgpu.h>
#ifdef CONFIG_NVGPU_TEGRA_FUSE
#include <dt-bindings/soc/gm20b-fuse.h>
#include <dt-bindings/soc/gp10b-fuse.h>
#include <dt-bindings/soc/gv11b-fuse.h>
#include <soc/tegra/fuse.h>
#endif /* CONFIG_NVGPU_TEGRA_FUSE */
#include <nvgpu/hal_init.h>
#include <nvgpu/dma.h>
@@ -1134,9 +1136,12 @@ static int gk20a_pm_railgate(struct device *dev)
#ifdef CONFIG_DEBUG_FS
g->pstats.last_rail_gate_complete = jiffies;
#endif
#ifdef CONFIG_NVGPU_TEGRA_FUSE
ret = tegra_fuse_clock_disable();
if (ret)
nvgpu_err(g, "failed to disable tegra fuse clock, err=%d", ret);
#endif
return ret;
}
@@ -1151,11 +1156,14 @@ static int gk20a_pm_unrailgate(struct device *dev)
if (!platform->unrailgate)
return 0;
#ifdef CONFIG_NVGPU_TEGRA_FUSE
ret = tegra_fuse_clock_enable();
if (ret) {
nvgpu_err(g, "failed to enable tegra fuse clock, err=%d", ret);
return ret;
}
#endif
#ifdef CONFIG_DEBUG_FS
g->pstats.last_rail_ungate_start = jiffies;
if (g->pstats.railgating_cycle_count >= 1)
@@ -1505,6 +1513,7 @@ static inline void set_gk20a(struct platform_device *pdev, struct gk20a *gk20a)
static int nvgpu_read_fuse_overrides(struct gk20a *g)
{
#ifdef CONFIG_NVGPU_TEGRA_FUSE
struct device_node *np = nvgpu_get_node(g);
struct gk20a_platform *platform = dev_get_drvdata(dev_from_gk20a(g));
u32 *fuses;
@@ -1545,7 +1554,7 @@ static int nvgpu_read_fuse_overrides(struct gk20a *g)
}
nvgpu_kfree(g, fuses);
#endif
return 0;
}