diff options
| author | Diwakar Tundlam <dtundlam@nvidia.com> | 2011-07-25 15:50:18 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:47:57 -0800 |
| commit | b62ccc375310a2f69aa8096930d28c24da5d7854 (patch) | |
| tree | aad0c40fda65e7b518d71b27caa3e63ae7e5687f /arch/arm/mach-tegra/board-enterprise-sensors.c | |
| parent | 61e83735bf1601a414daa38b67d4a4135c0203b2 (diff) | |
arm: tegra: enterprise: EDP support
Added EDP support for Enterprise board via ext temp sensor nct1008
Bug 824621
Original-Change-Id: I476b9ad2cb46620d4775e6ee6e102b45f2b4dc27
Reviewed-on: http://git-master/r/43144
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Rebase-Id: Rd0a03e8e8786fc76dd57149d9df315d084072cae
Diffstat (limited to 'arch/arm/mach-tegra/board-enterprise-sensors.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-enterprise-sensors.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/arch/arm/mach-tegra/board-enterprise-sensors.c b/arch/arm/mach-tegra/board-enterprise-sensors.c index 1c3950fd736e..78fce61d1cd1 100644 --- a/arch/arm/mach-tegra/board-enterprise-sensors.c +++ b/arch/arm/mach-tegra/board-enterprise-sensors.c @@ -28,6 +28,7 @@ #include <media/ar0832_main.h> #include <media/tps61050.h> #include <media/ov9726.h> +#include <mach/edp.h> #include "cpu-tegra.h" #include "gpio-names.h" #include "board-enterprise.h" @@ -36,11 +37,15 @@ static struct nct1008_platform_data enterprise_nct1008_pdata = { .supported_hwrev = true, .ext_range = true, .conv_rate = 0x08, - .offset = 0, +/* + * BugID 844025 requires 11C guardband (9.7C for hotspot offset + 1.5C + * for sensor accuracy). FIXME: Move sensor accuracy to sensor driver. + */ + .offset = 11, .hysteresis = 5, - .shutdown_ext_limit = 75, - .shutdown_local_limit = 75, - .throttling_ext_limit = 90, + .shutdown_ext_limit = 90, + .shutdown_local_limit = 90, + .throttling_ext_limit = 75, .alarm_fn = tegra_throttling_enable, }; @@ -55,6 +60,12 @@ static struct i2c_board_info enterprise_i2c4_nct1008_board_info[] = { static void enterprise_nct1008_init(void) { int ret; +#ifdef CONFIG_TEGRA_EDP_LIMITS + const struct tegra_edp_limits *z; + int zones_sz; + int i; + bool throttle_ok = false; +#endif tegra_gpio_enable(TEGRA_GPIO_PH7); ret = gpio_request(TEGRA_GPIO_PH7, "temp_alert"); @@ -72,6 +83,27 @@ static void enterprise_nct1008_init(void) i2c_register_board_info(4, enterprise_i2c4_nct1008_board_info, ARRAY_SIZE(enterprise_i2c4_nct1008_board_info)); +#ifdef CONFIG_TEGRA_EDP_LIMITS + tegra_get_cpu_edp_limits(&z, &zones_sz); + zones_sz = min(zones_sz, MAX_ZONES); + for (i = 0; i < zones_sz; i++) { + enterprise_nct1008_pdata.thermal_zones[i] = z[i].temperature; + if (enterprise_nct1008_pdata.thermal_zones[i] == + enterprise_nct1008_pdata.throttling_ext_limit) { + throttle_ok = true; + } + } + + if (throttle_ok != true) + pr_warn("%s: WARNING! Throttling limit %dC would be inaccurate" + " as it is NOT one of the EDP points\n", + __func__, enterprise_nct1008_pdata.throttling_ext_limit); + else + pr_info("%s: Throttling limit %dC OK\n", + __func__, enterprise_nct1008_pdata.throttling_ext_limit); + + enterprise_nct1008_pdata.thermal_zones_sz = zones_sz; +#endif } #define SENSOR_MPU_NAME "mpu3050" |