diff options
| -rw-r--r-- | arch/arm/mach-tegra/tegra_cl_dvfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/tegra_cl_dvfs.c b/arch/arm/mach-tegra/tegra_cl_dvfs.c index 6dd7712b7961..0b2f50a0e8d2 100644 --- a/arch/arm/mach-tegra/tegra_cl_dvfs.c +++ b/arch/arm/mach-tegra/tegra_cl_dvfs.c @@ -150,6 +150,8 @@ #define CL_DVFS_OUTPUT_LUT 0x200 +#define CL_DVFS_APERTURE 0x400 + #define CL_DVFS_CALIBR_TIME 40000 #define CL_DVFS_OUTPUT_PENDING_TIMEOUT 1000 #define CL_DVFS_OUTPUT_RAMP_DELAY 100 @@ -3243,6 +3245,9 @@ static ssize_t cl_register_write(struct file *file, if (sscanf(buf, "[0x%x] = 0x%x", &offs, &val) != 2) return -1; + if (offs >= CL_DVFS_APERTURE) + return -1; + clk_enable(cld->soc_clk); cl_dvfs_writel(cld, val, offs & (~0x3)); clk_disable(cld->soc_clk); |