From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski Subject: [PATCH RESEND v10 7/7] thermal:exynos:boost: Automatic enable/disable of BOOST feature (at Exynos4412) Date: Mon, 02 Dec 2013 13:19:21 +0100 Message-ID: <1385986761-17934-8-git-send-email-l.majewski@samsung.com> References: <1370502472-7249-1-git-send-email-l.majewski@samsung.com> <1385986761-17934-1-git-send-email-l.majewski@samsung.com> Return-path: In-reply-to: <1385986761-17934-1-git-send-email-l.majewski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Viresh Kumar , "Rafael J. Wysocki" , Zhang Rui , Eduardo Valentin Cc: "cpufreq@vger.kernel.org" , Linux PM list , Jonghwa Lee , Lukasz Majewski , Lukasz Majewski , linux-kernel , Bartlomiej Zolnierkiewicz , Myungjoo Ham , durgadoss.r@intel.com, linux-samsung-soc@vger.kernel.org List-Id: linux-pm@vger.kernel.org This patch provides auto disable/enable operation for boost. It uses already present thermal infrastructure to provide boost hysteresis. A special set of TMU data has been defined for Exynos4412, which is only considered when BOOST is enabled. Signed-off-by: Lukasz Majewski Signed-off-by: Myungjoo Ham --- Changes for v10: - Remove boost related code from thermal_core.c - Use already present thermal infrastructure to provide thermal hysteresis - Introduce special set of TMU data for BOOST Changes for v9: - None Changes for v8: - Move cpufreq_boost_* stub functions definition (needed when cpufreq is not compiled in) to cpufreq.h at cpufreq core support commit Changes for v7: - None Changes for v6: - Disable boost only when supported and enabled - Protect boost related thermal_zone_device struct fields with mutex - Evaluate temperature trend during boost enable decision - Create separate methods to handle boost enable/disable (thermal_boost_{enable|disable}) operations - Boost is disabled at any trip point passage (not only the non critical one) - Add stub definitions for cpufreq boost functions used when CONFIG_CPU_FREQ is NOT defined. Changes for v5: - Move boost disable code from cpu_cooling.c to thermal_core.c (to handle_non_critical_trips) - Extent struct thermal_zone_device by adding overheated bool flag - Implement auto enable of boost after device cools down - Introduce boost_polling flag, which indicates if thermal uses it's predefined pool delay or has woken up thermal workqueue only to wait until device cools down. Changes for v4: - New patch drivers/thermal/samsung/exynos_tmu_data.c | 47 +++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index 073c292..9346926 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -167,13 +167,60 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = { .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ TMU_SUPPORT_EMUL_TIME) + +#define EXYNOS4412_TMU_DATA_BOOST \ + .threshold_falling = 10, \ + .trigger_levels[0] = 70, \ + .trigger_levels[1] = 85, \ + .trigger_levels[2] = 103, \ + .trigger_levels[3] = 110, \ + .trigger_enable[0] = true, \ + .trigger_enable[1] = true, \ + .trigger_enable[2] = true, \ + .trigger_enable[3] = true, \ + .trigger_type[0] = THROTTLE_ACTIVE, \ + .trigger_type[1] = THROTTLE_ACTIVE, \ + .trigger_type[2] = THROTTLE_ACTIVE, \ + .trigger_type[3] = SW_TRIP, \ + .max_trigger_level = 4, \ + .gain = 8, \ + .reference_voltage = 16, \ + .noise_cancel_mode = 4, \ + .cal_type = TYPE_ONE_POINT_TRIMMING, \ + .efuse_value = 55, \ + .min_efuse_value = 40, \ + .max_efuse_value = 100, \ + .first_point_trim = 25, \ + .second_point_trim = 85, \ + .default_temp_offset = 50, \ + .freq_tab[0] = { \ + .freq_clip_max = 1400 * 1000, \ + .temp_level = 70, \ + }, \ + .freq_tab[1] = { \ + .freq_clip_max = 800 * 1000, \ + .temp_level = 85, \ + }, \ + .freq_tab[2] = { \ + .freq_clip_max = 200 * 1000, \ + .temp_level = 103, \ + }, \ + .freq_tab_count = 3, \ + .registers = &exynos4412_tmu_registers, \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME) #endif #if defined(CONFIG_SOC_EXYNOS4412) struct exynos_tmu_init_data const exynos4412_default_tmu_data = { .tmu_data = { { +#ifdef CONFIG_CPU_FREQ_BOOST_SW + EXYNOS4412_TMU_DATA_BOOST, +#else EXYNOS4412_TMU_DATA, +#endif .type = SOC_ARCH_EXYNOS4412, .test_mux = EXYNOS4412_MUX_ADDR_VALUE, }, -- 1.7.10.4