From patchwork Fri Apr 24 15:33:18 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kumar, Shobhit" X-Patchwork-Id: 6271091 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5D0B7BF4A6 for ; Fri, 24 Apr 2015 15:33:48 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C1B4B2035B for ; Fri, 24 Apr 2015 15:33:44 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 27CEC201ED for ; Fri, 24 Apr 2015 15:33:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AC59F6E8E3; Fri, 24 Apr 2015 08:33:40 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 56DA5897CD for ; Fri, 24 Apr 2015 08:33:38 -0700 (PDT) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP; 24 Apr 2015 08:33:38 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,640,1422950400"; d="scan'208";a="700406052" Received: from unknown (HELO skumar40-ivm.gar.corp.intel.com) ([10.223.180.140]) by fmsmga001.fm.intel.com with ESMTP; 24 Apr 2015 08:33:35 -0700 From: Shobhit Kumar To: intel-gfx Date: Fri, 24 Apr 2015 21:03:18 +0530 Message-Id: <1429889601-13722-6-git-send-email-shobhit.kumar@intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1429889601-13722-1-git-send-email-shobhit.kumar@intel.com> References: <1429889601-13722-1-git-send-email-shobhit.kumar@intel.com> Cc: Alexandre Courbot , Samuel Ortiz , Jani Nikula , Shobhit Kumar , Linus Walleij , Thierry Reding , Daniel Vetter Subject: [Intel-gfx] [RFC v6 5/8] drivers/mfd: ADD PWM lookup table for CRC PMIC based PWM X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_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 On some BYT PLatform the PWM is controlled using CRC PMIC. Add a lookup entry for the same to be used by the consumer (Intel GFX) v2: Remove the lookup table on driver unload (Thierry) CC: Samuel Ortiz Cc: Linus Walleij Cc: Alexandre Courbot Cc: Thierry Reding Signed-off-by: Shobhit Kumar --- drivers/mfd/intel_soc_pmic_core.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c index f3d918e..a00ddd9 100644 --- a/drivers/mfd/intel_soc_pmic_core.c +++ b/drivers/mfd/intel_soc_pmic_core.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "intel_soc_pmic_core.h" /* Lookup table for the Panel Enable/Disable line as GPIO signals */ @@ -37,6 +38,11 @@ static struct gpiod_lookup_table panel_gpio_table = { }, }; +/* PWM consumed by the Intel GFX */ +static struct pwm_lookup crc_pwm_lookup[] = { + PWM_LOOKUP("crystal_cove_pwm", 0, "0000:00:02.0", "pwm_backlight", 0, PWM_POLARITY_NORMAL), +}; + static int intel_soc_pmic_find_gpio_irq(struct device *dev) { struct gpio_desc *desc; @@ -99,6 +105,9 @@ static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c, /* Add lookup table binding for Panel Control to the GPIO Chip */ gpiod_add_lookup_table(&panel_gpio_table); + /* Add lookup table for crc-pwm */ + pwm_add_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup)); + ret = mfd_add_devices(dev, -1, config->cell_dev, config->n_cell_devs, NULL, 0, regmap_irq_get_domain(pmic->irq_chip_data)); @@ -121,6 +130,9 @@ static int intel_soc_pmic_i2c_remove(struct i2c_client *i2c) /* Remove lookup table for Panel Control from the GPIO Chip */ gpiod_remove_lookup_table(&panel_gpio_table); + /* remove crc-pwm lookup table */ + pwm_remove_table(crc_pwm_lookup, ARRAY_SIZE(crc_pwm_lookup)); + mfd_remove_devices(&i2c->dev); return 0;