From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753276Ab3ACKsF (ORCPT ); Thu, 3 Jan 2013 05:48:05 -0500 Received: from hqemgate03.nvidia.com ([216.228.121.140]:18832 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753066Ab3ACKsC (ORCPT ); Thu, 3 Jan 2013 05:48:02 -0500 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Thu, 03 Jan 2013 02:47:30 -0800 From: Laxman Dewangan To: , , , CC: , , , , Laxman Dewangan Subject: [PATCH 2/4] mfd: palmas: add apis to access the Palmas' registers Date: Thu, 3 Jan 2013 16:16:58 +0530 Message-ID: <1357210020-19876-3-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 1.7.1.1 In-Reply-To: <1357210020-19876-1-git-send-email-ldewangan@nvidia.com> References: <1357210020-19876-1-git-send-email-ldewangan@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Palmas register set is divided into different blocks (base and offset) and hence different i2c addresses. The i2c address offsets are derived from base address of block of registers. Add inline APIs to access the Palma's registers which takes the base of register block and register offset. The i2c address offset is derived from the base address of register blocks. Signed-off-by: Laxman Dewangan --- include/linux/mfd/palmas.h | 52 ++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 52 insertions(+), 0 deletions(-) diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h index 29f6616..a4d13d7 100644 --- a/include/linux/mfd/palmas.h +++ b/include/linux/mfd/palmas.h @@ -2789,4 +2789,56 @@ enum usb_irq_events { #define PALMAS_GPADC_TRIM15 0xE #define PALMAS_GPADC_TRIM16 0xF +static inline int palmas_read(struct palmas *palmas, unsigned int base, + unsigned int reg, unsigned int *val) +{ + unsigned int addr = PALMAS_BASE_TO_REG(base, reg); + int slave_id = PALMAS_BASE_TO_SLAVE(base); + + return regmap_read(palmas->regmap[slave_id], addr, val); +} + +static inline int palmas_write(struct palmas *palmas, unsigned int base, + unsigned int reg, unsigned int value) +{ + unsigned int addr = PALMAS_BASE_TO_REG(base, reg); + int slave_id = PALMAS_BASE_TO_SLAVE(base); + + return regmap_write(palmas->regmap[slave_id], addr, value); +} + +static inline int palmas_bulk_write(struct palmas *palmas, unsigned int base, + unsigned int reg, const void *val, size_t val_count) +{ + unsigned int addr = PALMAS_BASE_TO_REG(base, reg); + int slave_id = PALMAS_BASE_TO_SLAVE(base); + + return regmap_bulk_write(palmas->regmap[slave_id], addr, + val, val_count); +} + +static inline int palmas_bulk_read(struct palmas *palmas, unsigned int base, + unsigned int reg, void *val, size_t val_count) +{ + unsigned int addr = PALMAS_BASE_TO_REG(base, reg); + int slave_id = PALMAS_BASE_TO_SLAVE(base); + + return regmap_bulk_read(palmas->regmap[slave_id], addr, + val, val_count); +} + +static inline int palmas_update_bits(struct palmas *palmas, unsigned int base, + unsigned int reg, unsigned int mask, unsigned int val) +{ + unsigned int addr = PALMAS_BASE_TO_REG(base, reg); + int slave_id = PALMAS_BASE_TO_SLAVE(base); + + return regmap_update_bits(palmas->regmap[slave_id], addr, mask, val); +} + +static inline int palmas_irq_get_virq(struct palmas *palmas, int irq) +{ + return regmap_irq_get_virq(palmas->irq_data, irq); +} + #endif /* __LINUX_MFD_PALMAS_H */ -- 1.7.1.1