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drm/tegra: ofa: Only enable safety RAM if specified

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Fix OFA boot sequence to only enable safety RAM if the configuration
specifies doing so.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: Id427dee5cfcda036b3f71b89e5d11a4a842964f1
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3103404
Reviewed-by: Santosh BS <santoshb@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Tested-by: Bitan Biswas <bbiswas@nvidia.com>
This commit is contained in:
Mikko Perttunen
2024-03-25 06:59:36 +02:00
committed by mobile promotions
parent f9c1b6728e
commit 4f69d815e6
1 changed files with 8 additions and 5 deletions
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13
drivers/gpu/drm/tegra/ofa.c
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@@ -75,11 +75,14 @@ static int ofa_boot(struct ofa *ofa)
int err;
u32 val;
ofa_writel(ofa, 0x1, OFA_SAFETY_RAM_INIT_REQ);
err = readl_poll_timeout(ofa->regs + OFA_SAFETY_RAM_INIT_DONE, val, (val == 1), 100000, 10);
if (err < 0) {
dev_err(ofa->dev, "timeout while initializing safety RAM\n");
return err;
if (ofa->config->has_safety_ram) {
ofa_writel(ofa, 0x1, OFA_SAFETY_RAM_INIT_REQ);
err = readl_poll_timeout(ofa->regs + OFA_SAFETY_RAM_INIT_DONE, val, (val == 1),
100000, 10);
if (err < 0) {
dev_err(ofa->dev, "timeout while initializing safety RAM\n");
return err;
}
}
tegra_drm_program_iommu_regs(ofa->dev, ofa->regs, OFA_TFBIF_TRANSCFG);