From patchwork Wed Oct 16 02:52:48 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: 3049821 X-Patchwork-Delegate: rui.zhang@intel.com Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 454A8BF924 for ; Wed, 16 Oct 2013 02:50:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 258A12030D for ; Wed, 16 Oct 2013 02:50:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EFD5F20425 for ; Wed, 16 Oct 2013 02:50:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758451Ab3JPCup (ORCPT ); Tue, 15 Oct 2013 22:50:45 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:53097 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751384Ab3JPCun (ORCPT ); Tue, 15 Oct 2013 22:50:43 -0400 Received: from epcpsbgr5.samsung.com (u145.gpu120.samsung.co.kr [203.254.230.145]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MUQ00BNZQKDR8F0@mailout2.samsung.com>; Wed, 16 Oct 2013 11:50:42 +0900 (KST) Received: from epcpsbgm2.samsung.com ( [172.20.52.125]) by epcpsbgr5.samsung.com (EPCPMTA) with SMTP id D6.5E.02244.10FFD525; Wed, 16 Oct 2013 11:50:42 +0900 (KST) X-AuditID: cbfee691-b7fe06d0000008c4-23-525dff01b376 Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id EC.2A.05832.10FFD525; Wed, 16 Oct 2013 11:50:41 +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 <0MUQ00KJNQKDSK50@mmp2.samsung.com>; Wed, 16 Oct 2013 11:50:41 +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, amit.daniel@samsung.com, kgene.kim@samsung.com, devicetree@vger.kernel.org, b.zolnierkie@samsung.com, l.majewski@samsung.com, cpgs@samsung.com Subject: [PATCH 3/3 v5] thermal: samsung: Add TMU support for Exynos5420 SoCs Date: Wed, 16 Oct 2013 08:22:48 +0530 Message-id: <1381891968-30251-1-git-send-email-ch.naveen@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1377668719-8602-3-git-send-email-ch.naveen@samsung.com> References: <1377668719-8602-3-git-send-email-ch.naveen@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpnkeLIzCtJLcpLzFFi42JZI2JSq8v0PzbI4N4sTouGqyEWG2esZ7V4 eUjTYv6Rc6wWa/b/ZLLoXXCVzeLNw82MFp97jzBazDi/j8li0bb/zBZPHvaxOXB77Jx1l91j 8Z6XTB59W1Yxehy/sZ3J4/MmuQDWKC6blNSczLLUIn27BK6MQ1NWsBXMCqz4NOU/ewPjPecu Rg4OCQETibmTK7sYOYFMMYkL99azdTFycQgJLGWUeHbpEytMzbm9ERDx6YwSX38fYgVpEBLo YZLY8UIDxGYTMJM4uGg1O4gtIiAjMfXKflaQBmaBViaJjYfPM4MkhAV8Jf73XWcBsVkEVCX+ PN4K1sAr4Cqx/c1xJogrFCW6n01gA7E5geJz5x2DWuYisWTabEaQoRICu9gl5t+6xQwxSEDi 2+RDLBCXykpsOsAMMUdS4uCKGywTGIUXMDKsYhRNLUguKE5KLzLVK07MLS7NS9dLzs/dxAiM hNP/nk3cwXj/gPUhxmSgcROZpUST84GRlFcSb2hsZmRhamJqbGRuaUaasJI4r3qLdaCQQHpi SWp2ampBalF8UWlOavEhRiYOTqkGxrK5d9+3tB1m2SZuuyzV+3M8t1qSs8KfNdVXJbd92/t3 ouMKkVbV42d4OWesrOnYUL/22IT075aNBltOBxed1f12Q7+Guaf4+c7Zu9OifI9t57sjd3F1 qEez0LmPf5+qLS1WnPz7OfeWeaft71z6EMF5yP3Gbtv2xdW7g1dIGe01UTly5trC4golluKM REMt5qLiRAAvP++wmgIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrKIsWRmVeSWpSXmKPExsVy+t9jQV3G/7FBBvf2W1k0XA2x2DhjPavF y0OaFvOPnGO1WLP/J5NF74KrbBZvHm5mtPjce4TRYsb5fUwWi7b9Z7Z48rCPzYHbY+esu+we i/e8ZPLo27KK0eP4je1MHp83yQWwRjUw2mSkJqakFimk5iXnp2TmpdsqeQfHO8ebmhkY6hpa WpgrKeQl5qbaKrn4BOi6ZeYAXaakUJaYUwoUCkgsLlbSt8M0ITTETdcCpjFC1zckCK7HyAAN JKxhzDg0ZQVbwazAik9T/rM3MN5z7mLk4JAQMJE4tzeii5ETyBSTuHBvPVsXIxeHkMB0Romv vw+xgiSEBHqYJHa80ACx2QTMJA4uWs0OYosIyEhMvbKfFaSBWaCVSWLj4fPMIAlhAV+J/33X WUBsFgFViT+Pt4I18Aq4Smx/c5wJYpuiRPezCWwgNidQfO68Y1DLXCSWTJvNOIGRdwEjwypG 0dSC5ILipPRcI73ixNzi0rx0veT83E2M4Eh7Jr2DcVWDxSFGAQ5GJR7eE1GxQUKsiWXFlbmH GCU4mJVEeG3eAIV4UxIrq1KL8uOLSnNSiw8xJgNdNZFZSjQ5H5gE8kriDY1NzE2NTS1NLEzM LEkTVhLnPdhqHSgkkJ5YkpqdmlqQWgSzhYmDU6qBMcf0zMqDvCun3foR1PhSsb3HxyhPYNrL XreVvb/jbEIL83JL25MuW36oPvn3oVLhu9bmax3mbTPsBdLEPmRLRaxVMM3r9J0hLGP4eX/9 dS+hAn7NKxbLtZ6LRh26xqdgHyiUfsL6RVNwv1dw/NJPx7+euLLW9L6X49ed8WG7qmYlXpff vvKtEktxRqKhFnNRcSIAN4pcL/gCAAA= 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=-4.4 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, 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. 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 v4i None .../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 | 99 ++++++++++++++++++++ drivers/thermal/samsung/exynos_tmu_data.h | 7 ++ 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 d79264f..4b9be23 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 3d9ade5..7ad8248 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -195,6 +195,105 @@ 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, \ + +#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 9c1e2c8..87ab693 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.h +++ b/drivers/thermal/samsung/exynos_tmu_data.h @@ -158,6 +158,13 @@ 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)