From patchwork Thu Nov 7 05:53:32 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naveen Krishna Ch X-Patchwork-Id: 289190 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 6F0C62C00AA for ; Thu, 7 Nov 2013 16:52:26 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752583Ab3KGFwN (ORCPT ); Thu, 7 Nov 2013 00:52:13 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:45429 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752384Ab3KGFwH (ORCPT ); Thu, 7 Nov 2013 00:52:07 -0500 Received: from epcpsbgr4.samsung.com (u144.gpu120.samsung.co.kr [203.254.230.144]) by mailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MVV00LOQPM0URE0@mailout4.samsung.com>; Thu, 07 Nov 2013 14:51:54 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.124]) by epcpsbgr4.samsung.com (EPCPMTA) with SMTP id DF.0C.07242.A7A2B725; Thu, 07 Nov 2013 14:51:54 +0900 (KST) X-AuditID: cbfee690-b7f3d6d000001c4a-a8-527b2a7a0976 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 2F.CC.09687.A7A2B725; Thu, 07 Nov 2013 14:51:54 +0900 (KST) Received: from naveen-linux.sisodomain.com ([107.108.83.161]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MVV00FI3PMD3YE0@mmp1.samsung.com>; Thu, 07 Nov 2013 14:51:53 +0900 (KST) From: Naveen Krishna Chatradhi To: linux-pm@vger.kernel.org Cc: naveenkrishna.ch@gmail.com, rui.zhang@intel.com, eduardo.valentin@ti.com, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, amit.daniel@samsung.com, kgene.kim@samsung.com, devicetree@vger.kernel.org, b.zolnierkie@samsung.com, cpgs@samsung.com Subject: [PATCH 3/3 v8] thermal: samsung: Add TMU support for Exynos5420 SoCs Date: Thu, 07 Nov 2013 11:23:32 +0530 Message-id: <1383803612-31834-1-git-send-email-ch.naveen@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1378268629-2886-3-git-send-email-ch.naveen@samsung.com> References: <1378268629-2886-3-git-send-email-ch.naveen@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkkeLIzCtJLcpLzFFi42JZI2JSo1ulVR1k0P5JyKLhaojFxhnrWS1e HtK0mH/kHKvFmv0/mSx6F1xls7i8aw6bxefeI4wWM87vY7JYtO0/s8WTh31sDtweO2fdZfdY vOclk0ffllWMHsdvbGfy+LxJLoA1issmJTUnsyy1SN8ugStjx4eJLAXLwyq+LFzM1MDY59HF yMkhIWAicWfHXnYIW0ziwr31bF2MXBxCAksZJeZOmsoMU7RoZTMzRGIRUGLBQaiqHiaJ9T+3 soJUsQmYSRxctBpslIiAjMTUK/tZQYqYBbqZJOavOMcCkhAW8JW4sGUJI4jNIqAqcfbxQaCx HBy8Aq4S597wQmxTlOh+NoENxOYECk+91Qt2hZCAi8Ty96/BFksI7GKX+Lb8BzvEHAGJb5MP sYDMkRCQldh0AOpqSYmDK26wTGAUXsDIsIpRNLUguaA4Kb3IRK84Mbe4NC9dLzk/dxMjMBpO /3s2YQfjvQPWhxiTgcZNZJYSTc4HRlNeSbyhsZmRhamJqbGRuaUZacJK4rxqj5KChATSE0tS s1NTC1KL4otKc1KLDzEycXBKNTCqSS4OMamftejRjT3xBX5ewd16s6SLVppEJm/znhu89N2P eD3XzFVpJ/pbfk4o39+qIFtbx1lXvqSQf5bf0gJ2lkhta40iT+3jFv8OiTTv01jTmbdt+vI3 EkIbt7wyfc8rdyRA1SoxgP3TZ0vPTSs8rlzLCfPljpr/kSHvShBj9Yr/BsWPjymxFGckGmox FxUnAgAJQNHMnAIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrGIsWRmVeSWpSXmKPExsVy+t9jAd0qreoggwvNHBYNV0MsNs5Yz2rx 8pCmxfwj51gt1uz/yWTRu+Aqm8XlXXPYLD73HmG0mHF+H5PFom3/mS2ePOxjc+D22DnrLrvH 4j0vmTz6tqxi9Dh+YzuTx+dNcgGsUQ2MNhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaW FuZKCnmJuam2Si4+AbpumTlAlykplCXmlAKFAhKLi5X07TBNCA1x07WAaYzQ9Q0JgusxMkAD CWsYM3Z8mMhSsDys4svCxUwNjH0eXYycHBICJhKLVjYzQ9hiEhfurWfrYuTiEBJYxCgxd8FB KKeHSWL9z62sIFVsAmYSBxetZgexRQRkJKZe2c8KUsQs0M0kMX/FORaQhLCAr8SFLUsYQWwW AVWJs48PAq3g4OAVcJU494YXYpuiRPezCWwgNidQeOqtXrArhARcJJa/f802gZF3ASPDKkbR 1ILkguKk9FxDveLE3OLSvHS95PzcTYzgWHsmtYNxZYPFIUYBDkYlHt4ZNVVBQqyJZcWVuYcY JTiYlUR47z0DCvGmJFZWpRblxxeV5qQWH2JMBjpqIrOUaHI+MA3klcQbGpuYmxqbWppYmJhZ kiasJM57oNU6UEggPbEkNTs1tSC1CGYLEwenVANjxI6Eu03zjy0Ii45ffcdtiZms3XddLb0A XYbH0eV9Gk9rZ8gdcNtZZP7TmGHSy71Mi9ZpL9jGWHLQ4P1iaz+nRxXLBeKmB97Uucyoun3d Bn/VlqL70/ZUq5S1HeeaE91TLXAwktPQZk+l6Z2PDPlf1zA43TA3D471Z3e84ZIk/kiYw91u RZUSS3FGoqEWc1FxIgB+hkkG+QIAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch adds the neccessary register changes and arch information to support Exynos5420 SoCs Exynos5420 has 5 TMU channels one for each CPU 0, 1, 2 and 3 and GPU Also updated the Documentation at Documentation/devicetree/bindings/thermal/exynos-thermal.txt Note: The platform data structure will be handled properly once the driver moves to complete device driver solution. Signed-off-by: Naveen Krishna Chatradhi --- Changes since v1: 1. modified the platform data structure in order to pass SHARED flag for channels that need sharing of address space. 2. https://lkml.org/lkml/2013/8/1/38 is merged into this patch. As the changes are minimum and can be added here. Changes since v3: a. Rearraged the code alphabetically, make exynso5420 come before exynso5440 b. Reduce code duplication in passing platform data by introducing a common macro Bartlomiej Zolnierkiewicz Thanks for review and suggestions Changes since v4: None Changes since v5: None Changes since v6: - removed the unsued field "inten_fall_shift" - defined EXYNOS5420_TMU_CLEAR_FALL_INT_SHIFT instead of using EXYNOS_TMU_FALL_INT_SHIFT Changes since v7: - changes ins v6 were moved to the patch 1/3 of this patchset. - defined EXYNOS5420_TMU_CLEAR_FALL_INT_SHIFT instead of using EXYNOS_TMU_FALL_INT_SHIFT .../devicetree/bindings/thermal/exynos-thermal.txt | 39 ++++++++ drivers/thermal/samsung/exynos_tmu.c | 12 ++- drivers/thermal/samsung/exynos_tmu.h | 1 + drivers/thermal/samsung/exynos_tmu_data.c | 98 ++++++++++++++++++++ drivers/thermal/samsung/exynos_tmu_data.h | 8 ++ 5 files changed, 157 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt index 116cca0..c5f9a74 100644 --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt @@ -6,6 +6,7 @@ "samsung,exynos4412-tmu" "samsung,exynos4210-tmu" "samsung,exynos5250-tmu" + "samsung,exynos5420-tmu" "samsung,exynos5440-tmu" - interrupt-parent : The phandle for the interrupt controller - reg : Address range of the thermal registers. For soc's which has multiple @@ -13,6 +14,16 @@ interrupt related then 2 set of register has to supplied. First set belongs to each instance of TMU and second set belongs to second set of common TMU registers. + NOTE: On Exynos5420, the TRIMINFO register is misplaced for TMU + channels 2, 3 and 4 + + TRIMINFO at 0x1006c000 contains data for TMU channel 3 + TRIMINFO at 0x100a0000 contains data for TMU channel 4 + TRIMINFO at 0x10068000 contains data for TMU channel 2 + + The misplaced register address is passed through devicetree as the + second base + - interrupts : Should contain interrupt for thermal system - clocks : The main clock for TMU device - clock-names : Thermal system clock name @@ -43,6 +54,34 @@ Example 2): clock-names = "tmu_apbif"; }; +Example 3): (In case of Exynos5420) + /* tmu for CPU2 */ + tmu@10068000 { + compatible = "samsung,exynos5420-tmu"; + reg = <0x10068000 0x100>, <0x1006c000 0x4>; + interrupts = <0 184 0>; + clocks = <&clock 318>; + clock-names = "tmu_apbif"; + }; + + /* tmu for CPU3 */ + tmu@1006c000 { + compatible = "samsung,exynos5420-tmu"; + reg = <0x1006c000 0x100>, <0x100a0000 0x4>; + interrupts = <0 185 0>; + clocks = <&clock 318>; + clock-names = "tmu_apbif"; + }; + + /* tmu for GPU */ + tmu@100a0000 { + compatible = "samsung,exynos5420-tmu"; + reg = <0x100a0000 0x100>, <0x10068000 0x4>; + interrupts = <0 215 0>; + clocks = <&clock 318>; + clock-names = "tmu_apbif"; + }; + Note: For multi-instance tmu each instance should have an alias correctly numbered in "aliases" node. diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index ae80a87..b54825a 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -186,7 +186,12 @@ static int exynos_tmu_initialize(struct platform_device *pdev) EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data); } } else { - trim_info = readl(data->base + reg->triminfo_data); + /* On exynos5420 the triminfo register is in the shared space */ + if (data->base_second && (data->soc == SOC_ARCH_EXYNOS5420)) + trim_info = readl(data->base_second + + reg->triminfo_data); + else + trim_info = readl(data->base + reg->triminfo_data); } data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK; data->temp_error2 = ((trim_info >> reg->triminfo_85_shift) & @@ -498,6 +503,10 @@ static const struct of_device_id exynos_tmu_match[] = { .data = (void *)EXYNOS5250_TMU_DRV_DATA, }, { + .compatible = "samsung,exynos5420-tmu", + .data = (void *)EXYNOS5420_TMU_DRV_DATA, + }, + { .compatible = "samsung,exynos5440-tmu", .data = (void *)EXYNOS5440_TMU_DRV_DATA, }, @@ -635,6 +644,7 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (pdata->type == SOC_ARCH_EXYNOS4210 || pdata->type == SOC_ARCH_EXYNOS4412 || pdata->type == SOC_ARCH_EXYNOS5250 || + pdata->type == SOC_ARCH_EXYNOS5420 || pdata->type == SOC_ARCH_EXYNOS5440) data->soc = pdata->type; else { diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index 0591089..62a6667 100644 --- a/drivers/thermal/samsung/exynos_tmu.h +++ b/drivers/thermal/samsung/exynos_tmu.h @@ -43,6 +43,7 @@ enum soc_type { SOC_ARCH_EXYNOS4210 = 1, SOC_ARCH_EXYNOS4412, SOC_ARCH_EXYNOS5250, + SOC_ARCH_EXYNOS5420, SOC_ARCH_EXYNOS5440, }; diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index a09047a..088a5aa 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -194,6 +194,104 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = { }; #endif +#if defined(CONFIG_SOC_EXYNOS5420) +static const struct exynos_tmu_registers exynos5420_tmu_registers = { + .triminfo_data = EXYNOS_TMU_REG_TRIMINFO, + .triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT, + .triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT, + .tmu_ctrl = EXYNOS_TMU_REG_CONTROL, + .buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT, + .buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK, + .therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT, + .therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK, + .therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT, + .buf_slope_sel_shift = EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT, + .buf_slope_sel_mask = EXYNOS_TMU_BUF_SLOPE_SEL_MASK, + .core_en_shift = EXYNOS_TMU_CORE_EN_SHIFT, + .tmu_status = EXYNOS_TMU_REG_STATUS, + .tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP, + .threshold_th0 = EXYNOS_THD_TEMP_RISE, + .threshold_th1 = EXYNOS_THD_TEMP_FALL, + .tmu_inten = EXYNOS_TMU_REG_INTEN, + .inten_rise_mask = EXYNOS_TMU_RISE_INT_MASK, + .inten_rise_shift = EXYNOS_TMU_RISE_INT_SHIFT, + .inten_fall_mask = EXYNOS_TMU_FALL_INT_MASK, + .inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT, + .inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT, + .inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT, + /* INTEN_RISE3 Not availble in exynos5420 */ + .inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT, + .inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT, + .tmu_intstat = EXYNOS_TMU_REG_INTSTAT, + .tmu_intclear = EXYNOS_TMU_REG_INTCLEAR, + .intclr_fall_shift = EXYNOS5420_TMU_CLEAR_FALL_INT_SHIFT, + .emul_con = EXYNOS_EMUL_CON, + .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT, + .emul_time_shift = EXYNOS_EMUL_TIME_SHIFT, + .emul_time_mask = EXYNOS_EMUL_TIME_MASK, +}; + +#define __EXYNOS5420_TMU_DATA \ + .threshold_falling = 10, \ + .trigger_levels[0] = 85, \ + .trigger_levels[1] = 103, \ + .trigger_levels[2] = 110, \ + .trigger_levels[3] = 120, \ + .trigger_enable[0] = true, \ + .trigger_enable[1] = true, \ + .trigger_enable[2] = true, \ + .trigger_enable[3] = false, \ + .trigger_type[0] = THROTTLE_ACTIVE, \ + .trigger_type[1] = THROTTLE_ACTIVE, \ + .trigger_type[2] = SW_TRIP, \ + .trigger_type[3] = HW_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 = 800 * 1000, \ + .temp_level = 85, \ + }, \ + .freq_tab[1] = { \ + .freq_clip_max = 200 * 1000, \ + .temp_level = 103, \ + }, \ + .freq_tab_count = 2, \ + .type = SOC_ARCH_EXYNOS5420, \ + .registers = &exynos5420_tmu_registers, \ + +#define EXYNOS5420_TMU_DATA \ + __EXYNOS5420_TMU_DATA \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME) + +#define EXYNOS5420_TMU_DATA_SHARED \ + __EXYNOS5420_TMU_DATA \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME | TMU_SUPPORT_ADDRESS_MULTIPLE) + +struct exynos_tmu_init_data const exynos5420_default_tmu_data = { + .tmu_data = { + { EXYNOS5420_TMU_DATA }, + { EXYNOS5420_TMU_DATA }, + { EXYNOS5420_TMU_DATA_SHARED }, + { EXYNOS5420_TMU_DATA_SHARED }, + { EXYNOS5420_TMU_DATA_SHARED }, + }, + .tmu_count = 5, +}; +#endif + #if defined(CONFIG_SOC_EXYNOS5440) static const struct exynos_tmu_registers exynos5440_tmu_registers = { .triminfo_data = EXYNOS5440_TMU_S0_7_TRIM, diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h index d9495a4..41f06dc 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.h +++ b/drivers/thermal/samsung/exynos_tmu_data.h @@ -72,6 +72,7 @@ #define EXYNOS_TMU_CLEAR_RISE_INT 0x111 #define EXYNOS_TMU_CLEAR_FALL_INT (0x111 << 12) #define EXYNOS_TMU_CLEAR_FALL_INT_SHIFT 12 +#define EXYNOS5420_TMU_CLEAR_FALL_INT_SHIFT 16 #define EXYNOS5440_TMU_CLEAR_FALL_INT_SHIFT 4 #define EXYNOS_TMU_TRIP_MODE_SHIFT 13 #define EXYNOS_TMU_TRIP_MODE_MASK 0x7 @@ -156,6 +157,13 @@ extern struct exynos_tmu_init_data const exynos5250_default_tmu_data; #define EXYNOS5250_TMU_DRV_DATA (NULL) #endif +#if defined(CONFIG_SOC_EXYNOS5420) +extern struct exynos_tmu_init_data const exynos5420_default_tmu_data; +#define EXYNOS5420_TMU_DRV_DATA (&exynos5420_default_tmu_data) +#else +#define EXYNOS5420_TMU_DRV_DATA (NULL) +#endif + #if defined(CONFIG_SOC_EXYNOS5440) extern struct exynos_tmu_init_data const exynos5440_default_tmu_data; #define EXYNOS5440_TMU_DRV_DATA (&exynos5440_default_tmu_data)