From patchwork Sat Aug 24 15:37:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 1152670 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pwm-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=kleine-koenig.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46G2T32rYVz9s3Z for ; Sun, 25 Aug 2019 01:37:27 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727556AbfHXPh0 (ORCPT ); Sat, 24 Aug 2019 11:37:26 -0400 Received: from antares.kleine-koenig.org ([94.130.110.236]:45364 "EHLO antares.kleine-koenig.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727551AbfHXPh0 (ORCPT ); Sat, 24 Aug 2019 11:37:26 -0400 Received: by antares.kleine-koenig.org (Postfix, from userid 1000) id E152377EAE2; Sat, 24 Aug 2019 17:37:24 +0200 (CEST) From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Thierry Reding , Heiko Stuebner , Maxime Ripard , Chen-Yu Tsai , Patrick Havelange Cc: kernel@pengutronix.de, linux-pwm@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: [PATCH v3 0/6] pwm: ensure pwm_apply_state() doesn't modify the state argument Date: Sat, 24 Aug 2019 17:37:01 +0200 Message-Id: <20190824153707.13746-1-uwe@kleine-koenig.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-pwm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pwm@vger.kernel.org Hello, this series eventually changes the prototype of pwm_apply_state to take a const struct pwm_state *, see the last patch for a rationale. Changes since v2 apart from rebasing and so covering a few more drivers is mainly addressing the concern that after state was rounded and applied at least pwm_get_state should return the rounded values. See patch 2. Uwe Kleine-König (6): pwm: introduce local struct pwm_chip in pwm_apply_state() pwm: let pwm_get_state() return the last implemented state pwm: rockchip: Don't update the state for the caller of pwm_apply_state() pwm: sun4i: Don't update the state for the caller of pwm_apply_state() pwm: fsl-ftm: Don't update the state for the caller of pwm_apply_state() pwm: ensure pwm_apply_state() doesn't modify the state argument drivers/pwm/core.c | 39 +++++++++++++++++++++-------------- drivers/pwm/pwm-atmel-hlcdc.c | 2 +- drivers/pwm/pwm-atmel.c | 2 +- drivers/pwm/pwm-bcm-iproc.c | 2 +- drivers/pwm/pwm-cros-ec.c | 2 +- drivers/pwm/pwm-fsl-ftm.c | 8 ++----- drivers/pwm/pwm-hibvt.c | 2 +- drivers/pwm/pwm-imx-tpm.c | 4 ++-- drivers/pwm/pwm-imx27.c | 2 +- drivers/pwm/pwm-jz4740.c | 2 +- drivers/pwm/pwm-lpss.c | 2 +- drivers/pwm/pwm-meson.c | 4 ++-- drivers/pwm/pwm-rcar.c | 2 +- drivers/pwm/pwm-rockchip.c | 10 ++------- drivers/pwm/pwm-sifive.c | 2 +- drivers/pwm/pwm-stm32-lp.c | 2 +- drivers/pwm/pwm-stm32.c | 4 ++-- drivers/pwm/pwm-sun4i.c | 10 ++------- drivers/pwm/pwm-zx.c | 2 +- include/linux/pwm.h | 4 ++-- 20 files changed, 49 insertions(+), 58 deletions(-)