From patchwork Wed Sep 4 04:23:49 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Naveen Krishna Chatradhi X-Patchwork-Id: 2853487 X-Patchwork-Delegate: eduardo.valentin@ti.com Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C8CDC9F4D5 for ; Wed, 4 Sep 2013 04:24:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 99AAD202C6 for ; Wed, 4 Sep 2013 04:24:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5FD6C202C0 for ; Wed, 4 Sep 2013 04:24:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761147Ab3IDEYB (ORCPT ); Wed, 4 Sep 2013 00:24:01 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:58275 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756747Ab3IDEXz (ORCPT ); Wed, 4 Sep 2013 00:23:55 -0400 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 <0MSL00I052VM2CO0@mailout4.samsung.com>; Wed, 04 Sep 2013 13:23:48 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.126]) by epcpsbgr4.samsung.com (EPCPMTA) with SMTP id 0D.E1.31253.3D5B6225; Wed, 04 Sep 2013 13:23:47 +0900 (KST) X-AuditID: cbfee690-b7f3b6d000007a15-a5-5226b5d3acd4 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 2A.B1.05832.3D5B6225; Wed, 04 Sep 2013 13:23:47 +0900 (KST) Received: from naveen-linux.sisodomain.com ([107.108.83.161]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MSL005KD2VF9M90@mmp2.samsung.com>; Wed, 04 Sep 2013 13:23:47 +0900 (KST) From: Naveen Krishna Chatradhi To: linux-pm@vger.kernel.org, rui.zhang@intel.com, eduardo.valentin@ti.com Cc: linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, amit.daniel@samsung.com, kgene.kim@samsung.com, naveenkrishna.ch@gmail.com, devicetree@vger.kernel.org, b.zolnierkie@samsung.com Subject: [PATCH 3/3] thermal: samsung: Add TMU support for Exynos5420 SoCs Date: Wed, 04 Sep 2013 09:53:49 +0530 Message-id: <1378268629-2886-3-git-send-email-ch.naveen@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1378268629-2886-1-git-send-email-ch.naveen@samsung.com> References: <1377668719-8602-2-git-send-email-ch.naveen@samsung.com> <1378268629-2886-1-git-send-email-ch.naveen@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmplkeLIzCtJLcpLzFFi42JZI2JSp3t5q1qQwYa/ZhYNV0MsNs5Yz2ox /8g5Vos1+38yWfQuuMpmcXnXHDaLz71HGC1mnN/HZLFo239miycP+9gcuDx2zrrL7rF4z0sm j74tqxg9jt/YzuTxeZNcAGsUl01Kak5mWWqRvl0CV8bK+ctYC1aEVmy5tJ+lgfG9WxcjJ4eE gInEl0+r2CFsMYkL99azdTFycQgJLGWUOD7vIRtM0bo9k5ghEtMZJTZNPskE4fQwSVy+dJkJ pIpNwEzi4KLVYKNEBLwkZj28ClbELHCSUeLyr3uMIAlhoMSzE2uYQWwWAVWJdctPgjXwCrhI 7Pt7CWgdB9A6BYk5k2xAwpwCrhKtrdtYQGwhgXqJtyePsoPMlBDYxi7x68oCFog5AhLfJh9i geiVldh0gBniakmJgytusExgFF7AyLCKUTS1ILmgOCm9yESvODG3uDQvXS85P3cTIzAKTv97 NmEH470D1ocYk4HGTWSWEk3OB0ZRXkm8obGZkYWpiamxkbmlGWnCSuK86i3WgUIC6Yklqdmp qQWpRfFFpTmpxYcYmTg4pRoY3ac+XXqnW09z5+7fl18Xsx4WNOblfftARGhF0r5Tu1xrpm1l 2v3Tr/Hr19l+z0yMrn/+dlfsqdwMYcuq31XBW6sqJmx8WO0jw/i68OsEuSOvJ1b+sf1wNqc7 TD/L+uDzL/4c5uy/3yTPVwj5fS2wafXjwpfbb6xhim9dzadX+3/Jk57tlfFLNymxFGckGmox FxUnAgC9SQPImAIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrEIsWRmVeSWpSXmKPExsVy+t9jQd3LW9WCDB4s07FouBpisXHGelaL +UfOsVqs2f+TyaJ3wVU2i8u75rBZfO49wmgx4/w+JotF2/4zWzx52MfmwOWxc9Zddo/Fe14y efRtWcXocfzGdiaPz5vkAlijGhhtMlITU1KLFFLzkvNTMvPSbZW8g+Od403NDAx1DS0tzJUU 8hJzU22VXHwCdN0yc4CuUlIoS8wpBQoFJBYXK+nbYZoQGuKmawHTGKHrGxIE12NkgAYS1jBm rJy/jLVgRWjFlkv7WRoY37t1MXJySAiYSKzbM4kZwhaTuHBvPVsXIxeHkMB0RolNk08yQTg9 TBKXL11mAqliEzCTOLhoNTuILSLgJTHr4VWwImaBk4wSl3/dYwRJCAMlnp1YAzaWRUBVYt3y k2ANvAIuEvv+XgJawQG0TkFiziQbkDCngKtEa+s2FhBbSKBe4u3Jo+wTGHkXMDKsYhRNLUgu KE5KzzXSK07MLS7NS9dLzs/dxAiOsWfSOxhXNVgcYhTgYFTi4T1orxYkxJpYVlyZe4hRgoNZ SYQ3wQcoxJuSWFmVWpQfX1Sak1p8iDEZ6KiJzFKiyfnA+M8riTc0NjE3NTa1NLEwMbMkTVhJ nPdgq3WgkEB6YklqdmpqQWoRzBYmDk6pBkY1g0+Xwg45/olysH5zkMdN+ILK2RMWdnOm1LHm VFyM2vLwcsc2jteip74tiFfTcty0Zdne/Rc28HKudlnf/t3e4OqfoA/f0l4FLdx+/Wd444pH rNNsTSb5tr5zkJ+XsVHbJv6p/+Utp6Wf+XXePBdYGrbsPJOe7itPi0XTBOcqXUk5PFOFV3WP EktxRqKhFnNRcSIArjm2nvUCAAA= DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-9.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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. .../devicetree/bindings/thermal/exynos-thermal.txt | 39 ++++++ drivers/thermal/samsung/exynos_tmu.c | 14 ++- drivers/thermal/samsung/exynos_tmu.h | 1 + drivers/thermal/samsung/exynos_tmu_data.c | 130 ++++++++++++++++++++ drivers/thermal/samsung/exynos_tmu_data.h | 7 ++ 5 files changed, 189 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt index 116cca0..d70f2a4 100644 --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt @@ -7,12 +7,23 @@ "samsung,exynos4210-tmu" "samsung,exynos5250-tmu" "samsung,exynos5440-tmu" + "samsung,exynos5420-tmu" - interrupt-parent : The phandle for the interrupt controller - reg : Address range of the thermal registers. For soc's which has multiple instances of TMU and some registers are shared across all TMU's like 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 3a55caf..6d34652 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) & @@ -499,6 +504,10 @@ static const struct of_device_id exynos_tmu_match[] = { .compatible = "samsung,exynos5440-tmu", .data = (void *)EXYNOS5440_TMU_DRV_DATA, }, + { + .compatible = "samsung,exynos5420-tmu", + .data = (void *)EXYNOS5420_TMU_DRV_DATA, + }, {}, }; MODULE_DEVICE_TABLE(of, exynos_tmu_match); @@ -637,7 +646,8 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (pdata->type == SOC_ARCH_EXYNOS || pdata->type == SOC_ARCH_EXYNOS4210 || - pdata->type == SOC_ARCH_EXYNOS5440) + pdata->type == SOC_ARCH_EXYNOS5440 || + pdata->type == SOC_ARCH_EXYNOS5420) data->soc = pdata->type; else { ret = -EINVAL; diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index ebd2ec1..774ab03 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_EXYNOS, SOC_ARCH_EXYNOS5440, + SOC_ARCH_EXYNOS5420, }; /** diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index 58570d0..a6d5cb5 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -177,6 +177,136 @@ 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_fall_shift = EXYNOS_TMU_FALL_INT_SHIFT, + .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 = EXYNOS_TMU_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, \ + .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 \ + .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, \ + .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 8788a87..3ce94cd 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.h +++ b/drivers/thermal/samsung/exynos_tmu_data.h @@ -153,4 +153,11 @@ extern struct exynos_tmu_init_data const exynos5440_default_tmu_data; #define EXYNOS5440_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 + #endif /*_EXYNOS_TMU_DATA_H*/