diff options
Diffstat (limited to 'drivers/thermal/tegra/soctherm-fuse.c')
| -rw-r--r-- | drivers/thermal/tegra/soctherm-fuse.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/thermal/tegra/soctherm-fuse.c b/drivers/thermal/tegra/soctherm-fuse.c index 29963180c453..8d37cd8c9122 100644 --- a/drivers/thermal/tegra/soctherm-fuse.c +++ b/drivers/thermal/tegra/soctherm-fuse.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/module.h> @@ -18,15 +9,12 @@ #include "soctherm.h" -#define NOMINAL_CALIB_FT 105 #define NOMINAL_CALIB_CP 25 #define FUSE_TSENSOR_CALIB_CP_TS_BASE_MASK 0x1fff #define FUSE_TSENSOR_CALIB_FT_TS_BASE_MASK (0x1fff << 13) #define FUSE_TSENSOR_CALIB_FT_TS_BASE_SHIFT 13 -#define FUSE_TSENSOR_COMMON 0x180 - /* * Tegra210: Layout of bits in FUSE_TSENSOR_COMMON: * 3 2 1 0 @@ -35,7 +23,7 @@ * | BASE_FT | BASE_CP | SHFT_FT | SHIFT_CP | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * - * Tegra12x, etc: + * Tegra124: * In chips prior to Tegra210, this fuse was incorrectly sized as 26 bits, * and didn't hold SHIFT_CP in [31:26]. Therefore these missing six bits * were obtained via the FUSE_SPARE_REALIGNMENT_REG register [5:0]. @@ -53,6 +41,13 @@ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |---------------------------------------------------| SHIFT_CP | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * + * Tegra114: Layout of bits in FUSE_TSENSOR_COMMON aka FUSE_VSENSOR_CALIB: + * 3 2 1 0 + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | SHFT_FT | BASE_FT | SHIFT_CP | BASE_CP | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ #define CALIB_COEFFICIENT 1000000LL @@ -86,7 +81,7 @@ int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse, s32 shifted_cp, shifted_ft; int err; - err = tegra_fuse_readl(FUSE_TSENSOR_COMMON, &val); + err = tegra_fuse_readl(tfuse->fuse_common_reg, &val); if (err) return err; @@ -105,10 +100,12 @@ int tegra_calc_shared_calib(const struct tegra_soctherm_fuse *tfuse, return err; } + shifted_cp = (val & tfuse->fuse_shift_cp_mask) >> + tfuse->fuse_shift_cp_shift; shifted_cp = sign_extend32(val, 5); shared->actual_temp_cp = 2 * NOMINAL_CALIB_CP + shifted_cp; - shared->actual_temp_ft = 2 * NOMINAL_CALIB_FT + shifted_ft; + shared->actual_temp_ft = 2 * tfuse->nominal_calib_ft + shifted_ft; return 0; } |