Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161504AbaDPOou (ORCPT ); Wed, 16 Apr 2014 10:44:50 -0400 Received: from mail-we0-f175.google.com ([74.125.82.175]:49274 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161145AbaDPOos (ORCPT ); Wed, 16 Apr 2014 10:44:48 -0400 From: Linus Walleij To: Samuel Ortiz , Lee Jones , linux-kernel@vger.kernel.org Cc: Silvio F , Philipp Zabel , Sascha Hauer , Shawn Guo , Viresh Kumar , Shiraz Hashim , spear-devel@list.st.com, Linus Walleij Subject: [PATCH 4/6] mfd: stmpe: mask off unused blocks properly Date: Wed, 16 Apr 2014 16:44:13 +0200 Message-Id: <1397659455-13638-5-git-send-email-linus.walleij@linaro.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1397659455-13638-1-git-send-email-linus.walleij@linaro.org> References: <1397659455-13638-1-git-send-email-linus.walleij@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The STMPE driver would just read/modify/write the system control register on the STMPE1601, meaning it would not properly mask off the PWM block, which remained active if it was on at boot time. This makes sure the blocks are always masked off if they were active on boot, saving some power. Also rename the inconsistenty named STMPE1601 define for the PWM block activation. Signed-off-by: Linus Walleij --- drivers/mfd/stmpe.c | 9 +++++++++ drivers/mfd/stmpe.h | 2 +- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 692452442ead..065c923cb2a9 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -606,9 +606,18 @@ static int stmpe1601_enable(struct stmpe *stmpe, unsigned int blocks, if (blocks & STMPE_BLOCK_GPIO) mask |= STMPE1601_SYS_CTRL_ENABLE_GPIO; + else + mask &= ~STMPE1601_SYS_CTRL_ENABLE_GPIO; if (blocks & STMPE_BLOCK_KEYPAD) mask |= STMPE1601_SYS_CTRL_ENABLE_KPC; + else + mask &= ~STMPE1601_SYS_CTRL_ENABLE_KPC; + + if (blocks & STMPE_BLOCK_PWM) + mask |= STMPE1601_SYS_CTRL_ENABLE_SPWM; + else + mask &= ~STMPE1601_SYS_CTRL_ENABLE_SPWM; return __stmpe_set_bits(stmpe, STMPE1601_REG_SYS_CTRL, mask, enable ? mask : 0); diff --git a/drivers/mfd/stmpe.h b/drivers/mfd/stmpe.h index 6639f1b0fef5..9e4d21d37a11 100644 --- a/drivers/mfd/stmpe.h +++ b/drivers/mfd/stmpe.h @@ -192,7 +192,7 @@ int stmpe_remove(struct stmpe *stmpe); #define STMPE1601_SYS_CTRL_ENABLE_GPIO (1 << 3) #define STMPE1601_SYS_CTRL_ENABLE_KPC (1 << 1) -#define STMPE1601_SYSCON_ENABLE_SPWM (1 << 0) +#define STMPE1601_SYS_CTRL_ENABLE_SPWM (1 << 0) /* The 1601/2403 share the same masks */ #define STMPE1601_AUTOSLEEP_TIMEOUT_MASK (0x7) -- 1.9.0 -- 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/