Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755656AbaDNWAP (ORCPT ); Mon, 14 Apr 2014 18:00:15 -0400 Received: from top.free-electrons.com ([176.31.233.9]:35493 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754854AbaDNWAK (ORCPT ); Mon, 14 Apr 2014 18:00:10 -0400 From: Alexandre Belloni To: Thierry Reding Cc: Tony Lindgren , Philipp Zabel , Paul Parsons , Simon Horman , Magnus Damm , Eric Miao , Haojian Zhuang , Bryan Wu , Jingoo Han , Lee Jones , linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-sh@vger.kernel.org, linux-leds@vger.kernel.org, linux-fbdev@vger.kernel.org, Alexandre Belloni Subject: [PATCHv2 00/11] improve PWM lookup support without device tree Date: Mon, 14 Apr 2014 23:59:42 +0200 Message-Id: <1397512793-10325-1-git-send-email-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 1.8.3.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, A patch set as suggested by Thierry to make lookup with the lookup table instead of device tree behave more like when using device tree. The first patch adds a period and a polarity member to the lookup table and use those to set period and polarity. Patch 2, 4 and 5 are making use of those new members from the board files. Patch 3 removes useless code since setting the polarity is now handled by the PWM core. I couldn't decide on a good name for the extended PWM_LOOKUP macro and I believe we won't have to add members to that structure soon so: Patch 6 modifies the PWM_LOOKUP macro to also initialize period and polarity and Patch 7-9 are making use of the new PWM_LOOKUP macro in the board files Patch 10 and 11 are making the leds-pwm and pwm_bl drivers get the period from the PWM before using pwm_period_ns if it is not already set. Patch 10 will obviously conflict with the series of Russell reworking the leds-pwm probing. I can rebase if necessary The final goal would be to get rid of .pwm_period_ns in leds-pwm and pwm_bl after moving all the remaining users (still around 25) to pwm_lookup. Changes in v2: - correctly unlock the pwm_lookup_lock mutex before returning. - don't change PWM_LOOKUP atomically - remove tpu_pwm_platform_data and the associated header file - make the leds-pwm and pwm_bl drivers get the period from the PWM Alexandre Belloni (11): pwm: add period and polarity to struct pwm_lookup ARM: shmobile: Armadillo 800 EVA: initialize all struct pwm_lookup members pwm: renesas-tpu: remove useless struct tpu_pwm_platform_data ARM: OMAP3: Beagle: initialize all the struct pwm_lookup members ARM: pxa: hx4700: initialize all the struct pwm_lookup members pwm: modify PWM_LOOKUP to initialize all struct pwm_lookup members ARM: OMAP3: Beagle: use PWM_LOOKUP to initialize struct pwm_lookup ARM: shmobile: Armadillo 800 EVA: use PWM_LOOKUP to initialize struct pwm_lookup ARM: pxa: hx4700: use PWM_LOOKUP to initialize struct pwm_lookup leds: leds-pwm: retrieve configured pwm period backlight: pwm_bl: retrieve configured pwm period Documentation/pwm.txt | 3 ++- arch/arm/mach-omap2/board-omap3beagle.c | 3 ++- arch/arm/mach-pxa/hx4700.c | 3 ++- arch/arm/mach-shmobile/board-armadillo800eva.c | 14 +++----------- drivers/leds/leds-pwm.c | 5 ++++- drivers/pwm/core.c | 8 +++++++- drivers/pwm/pwm-renesas-tpu.c | 19 +++---------------- drivers/video/backlight/pwm_bl.c | 8 +++++--- include/linux/platform_data/pwm-renesas-tpu.h | 16 ---------------- include/linux/pwm.h | 6 +++++- 10 files changed, 33 insertions(+), 52 deletions(-) delete mode 100644 include/linux/platform_data/pwm-renesas-tpu.h -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/