[PATCH v8 26/34] soc/tegra: fuse: Add OPP support
From: Dmitry Osipenko <digetx@gmail.com>
Date: 2021-08-17 01:30:55
Also in:
dri-devel, linux-clk, linux-media, linux-mmc, linux-pm, linux-pwm, linux-spi, linux-staging, linux-tegra, linux-usb, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Initialize and sync FUSE OPP to set up SoC core voltage vote needed by FUSE hardware. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/soc/tegra/fuse/fuse-tegra.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index f2151815db58..d1b66cd9339d 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c@@ -13,6 +13,7 @@ #include <linux/of.h> #include <linux/of_address.h> #include <linux/platform_device.h> +#include <linux/pm_opp.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/sys_soc.h>
@@ -213,6 +214,10 @@ static int tegra_fuse_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); + err = devm_tegra_core_dev_init_opp_table_simple(&pdev->dev); + if (err) + goto restore; + if (fuse->soc->probe) { err = fuse->soc->probe(fuse); if (err < 0)
@@ -259,6 +264,12 @@ static int __maybe_unused tegra_fuse_runtime_resume(struct device *dev) { int err; + err = dev_pm_opp_sync(dev); + if (err) { + dev_err(dev, "failed to sync OPP: %d\n", err); + return err; + } + err = clk_prepare_enable(fuse->clk); if (err < 0) { dev_err(dev, "failed to enable FUSE clock: %d\n", err);
--
2.32.0