diff options
| author | Bibek Basu <bbasu@nvidia.com> | 2016-11-10 15:48:17 +0530 |
|---|---|---|
| committer | Winnie Hsu <whsu@nvidia.com> | 2016-11-30 10:39:43 -0800 |
| commit | b8491114a4a0fe7a675c03d600003ea434c33a96 (patch) | |
| tree | 113dd6a42df30c79cb5079b4dafac688271c8972 /arch | |
| parent | 6454f3735146944761701de980bd6205dc979c15 (diff) | |
dvfs: tegra: Validate CLDVFS register address
Bug 1783583
Change-Id: I8b0e865db02c00f741dafb473d4bd39c5075f23f
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: http://git-master/r/1173469
(cherry picked from commit 453a77c5cd9a1316307458203365f9eb5bda62de)
Reviewed-on: http://git-master/r/1174714
(cherry picked from commit f2ce702f49c5631e8a7cbda6fbf09140f8fb55d9)
Reviewed-on: http://git-master/r/1239794
(cherry picked from commit f62bd56958ca743d512f757555e4a3b66f4c9cff)
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-on: http://git-master/r/1251020
GVS: Gerrit_Virtual_Submit
Reviewed-by: Winnie Hsu <whsu@nvidia.com>
Diffstat (limited to 'arch')
| -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); |