From patchwork Thu Sep 3 10:50:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 11753061 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EBD66166C for ; Thu, 3 Sep 2020 10:51:27 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CAE1A208B3 for ; Thu, 3 Sep 2020 10:51:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DdmqP1jz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CAE1A208B3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 788EB6E077; Thu, 3 Sep 2020 10:51:26 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from us-smtp-delivery-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4D4DF6E077 for ; Thu, 3 Sep 2020 10:51:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1599130284; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=2jfkitntswutOLQ1DY1OiWZZ+qzs7EZXcRyjoLVfEWI=; b=DdmqP1jzF8gNfKRXqupdTQt0B0B1lCMKClfoqUH+/2ZlKXstDW9o1L+X+vmDbdGqpeFJ0j DxWeelSPE5oPiRAKLVuba4xMJi80V+RwvTqXKoZ4yvAjwD/HWgoU3luTLxWeFPK1nE4RTw FB9c74JRCEvQxkt8CiprsmokrUPVoqs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-487-EEOplwD-PNqAcZIQbpPObA-1; Thu, 03 Sep 2020 06:51:22 -0400 X-MC-Unique: EEOplwD-PNqAcZIQbpPObA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A9F051091062; Thu, 3 Sep 2020 10:51:19 +0000 (UTC) Received: from x1.localdomain.com (ovpn-115-4.ams2.redhat.com [10.36.115.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id B8A2D7EEAE; Thu, 3 Sep 2020 10:51:15 +0000 (UTC) From: Hans de Goede To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , "Rafael J . Wysocki" , Len Brown Date: Thu, 3 Sep 2020 12:50:57 +0200 Message-Id: <20200903105114.9969-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Subject: [Intel-gfx] [PATCH v9 00/17] acpi/pwm/i915: Convert pwm-crc and i915 driver's PWM code to use the atomic PWM API X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pwm@vger.kernel.org, linux-acpi@vger.kernel.org, intel-gfx , dri-devel@lists.freedesktop.org, Andy Shevchenko , Mika Westerberg Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Hi All, So the bug-fix which prompted v8, lead to some discussion about the pwm-lpss suspend/resume code. So as discussed this version drops the following 2 patches: [PATCH v8 06/17] pwm: lpss: Use pwm_lpss_restore() when restoring state on resume [PATCH v8 07/17] pwm: lpss: Always update state and set update bit Replacing them with: [PATCH v9 06/17] pwm: lpss: Make pwm_lpss_apply() not rely on hardware state [PATCH v9 07/17] pwm: lpss: Remove suspend/resume handlers Andy, Thierry, can you review these 2 new patches please? The plan still is to push the entire series to drm-intel-next-queued (because of interdependencies) once the 2 new patches are reviewed and the series has passed CI. This series has been tested (and re-tested after adding various bug-fixes) extensively. It has been tested on the following devices: -Asus T100TA BYT + CRC-PMIC PWM -Toshiba WT8-A BYT + CRC-PMIC PWM -Thundersoft TS178 BYT + CRC-PMIC PWM, inverse PWM -Asus T100HA CHT + CRC-PMIC PWM -Terra Pad 1061 BYT + LPSS PWM -Trekstor Twin 10.1 BYT + LPSS PWM -Asus T101HA CHT + LPSS PWM -GPD Pocket CHT + LPSS PWM -Acer One S1003 CHT + LPSS PWM Regards, Hans Changelog: Changes in v9: - Replace: [PATCH v8 06/17] pwm: lpss: Use pwm_lpss_restore() when restoring state on resume [PATCH v8 07/17] pwm: lpss: Always update state and set update bit with: [PATCH v9 06/17] pwm: lpss: Make pwm_lpss_apply() not rely on hardware state [PATCH v9 07/17] pwm: lpss: Remove suspend/resume handlers Changes in v8: - Add a new patch dealing with the ACPI/DSDT GFX0._PS3 code poking the PWM controller in unexpected ways on some Cherry Trail devices Changes in v7: - Fix a u64 divide leading to undefined reference to `__udivdi3' errors on 32 bit platforms by casting the divisor to an unsigned long Changes in v6: - Rebase on v5.9-rc1 - Adjust pwm-crc patches for pwm_state.period and .duty_cycle now being u64 Changes in v5: - Dropped the "pwm: lpss: Correct get_state result for base_unit == 0" patch. The base_unit == 0 condition should never happen and sofar it is unclear what the proper behavior / correct values to store in the pwm_state should be when this does happen. Since this patch was added as an extra pwm-lpss fix in v4 of this patch-set and otherwise is orthogonal to the of this patch-set just drop it (again). - "[PATCH 04/16] pwm: lpss: Add range limit check for the base_unit register value" - Use clamp_val(... instead of clam_t(unsigned long long, ... - "[PATCH 05/16] pwm: lpss: Add pwm_lpss_prepare_enable() helper" - This is a new patch in v5 of this patchset - [PATCH 06/16] pwm: lpss: Use pwm_lpss_apply() when restoring state on resume - Use the new pwm_lpss_prepare_enable() helper Changes in v4: - "[PATCH v4 06/16] pwm: lpss: Correct get_state result for base_unit == 0" - This is a new patch in v4 of this patchset - "[PATCH v4 12/16] pwm: crc: Implement get_state() method" - Use DIV_ROUND_UP when calculating the period and duty_cycle values - "[PATCH v4 16/16] drm/i915: panel: Use atomic PWM API for devs with an external PWM controller" - Add a note to the commit message about the changes in pwm_disable_backlight() - Use the pwm_set/get_relative_duty_cycle() helpers Changes in v3: - "[PATCH v3 04/15] pwm: lpss: Add range limit check for the base_unit register value" - Use base_unit_range - 1 as maximum value for the clamp() - "[PATCH v3 05/15] pwm: lpss: Use pwm_lpss_apply() when restoring state on resume" - This replaces the "pwm: lpss: Set SW_UPDATE bit when enabling the PWM" patch from previous versions of this patch-set, which really was a hack working around the resume issue which this patch fixes properly. - PATCH v3 6 - 11 pwm-crc changes: - Various small changes resulting from the reviews by Andy and Uwe, including some refactoring of the patches to reduce the amount of churn in the patch-set Changes in v2: - Fix coverletter subject - Drop accidentally included debugging patch - "[PATCH v3 02/15] ACPI / LPSS: Save Cherry Trail PWM ctx registers only once ( - Move #define LPSS_SAVE_CTX_ONCE define to group it with LPSS_SAVE_CTX