Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:62839 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932905Ab0HJWNb (ORCPT ); Tue, 10 Aug 2010 18:13:31 -0400 From: Ohad Ben-Cohen To: , , Cc: Mark Brown , , Chikkature Rajashekar Madhusudhan , Luciano Coelho , , San Mehat , Roger Quadros , Tony Lindgren , Nicolas Pitre , Pandita Vikram , Kalle Valo , Ohad Ben-Cohen Subject: [PATCH v3 2/9] wireless: wl1271: support return value for the set power func Date: Wed, 11 Aug 2010 01:12:21 +0300 Message-Id: <1281478348-24833-3-git-send-email-ohad@wizery.com> In-Reply-To: <1281478348-24833-1-git-send-email-ohad@wizery.com> References: <1281478348-24833-1-git-send-email-ohad@wizery.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: Make it possible for the set power method to indicate a success/failure return value. This is needed to support more complex power on/off operations such as bringing up (and down) sdio functions. Signed-off-by: Ohad Ben-Cohen --- drivers/net/wireless/wl12xx/wl1271.h | 2 +- drivers/net/wireless/wl12xx/wl1271_io.h | 8 +++++--- drivers/net/wireless/wl12xx/wl1271_main.c | 4 +++- drivers/net/wireless/wl12xx/wl1271_sdio.c | 4 +++- drivers/net/wireless/wl12xx/wl1271_spi.c | 4 +++- 5 files changed, 15 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/wl12xx/wl1271.h b/drivers/net/wireless/wl12xx/wl1271.h index dd3cee6..faa5925 100644 --- a/drivers/net/wireless/wl12xx/wl1271.h +++ b/drivers/net/wireless/wl12xx/wl1271.h @@ -313,7 +313,7 @@ struct wl1271_if_operations { bool fixed); void (*reset)(struct wl1271 *wl); void (*init)(struct wl1271 *wl); - void (*power)(struct wl1271 *wl, bool enable); + int (*power)(struct wl1271 *wl, bool enable); struct device* (*dev)(struct wl1271 *wl); void (*enable_irq)(struct wl1271 *wl); void (*disable_irq)(struct wl1271 *wl); diff --git a/drivers/net/wireless/wl12xx/wl1271_io.h b/drivers/net/wireless/wl12xx/wl1271_io.h index bc806c7..4a5b92c 100644 --- a/drivers/net/wireless/wl12xx/wl1271_io.h +++ b/drivers/net/wireless/wl12xx/wl1271_io.h @@ -144,10 +144,12 @@ static inline void wl1271_power_off(struct wl1271 *wl) clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); } -static inline void wl1271_power_on(struct wl1271 *wl) +static inline int wl1271_power_on(struct wl1271 *wl) { - wl->if_ops->power(wl, true); - set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); + int ret = wl->if_ops->power(wl, true); + if (ret == 0) + set_bit(WL1271_FLAG_GPIO_POWER, &wl->flags); + return ret; } diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c index 9d68f00..e6e0852 100644 --- a/drivers/net/wireless/wl12xx/wl1271_main.c +++ b/drivers/net/wireless/wl12xx/wl1271_main.c @@ -621,7 +621,9 @@ static int wl1271_chip_wakeup(struct wl1271 *wl) int ret = 0; msleep(WL1271_PRE_POWER_ON_SLEEP); - wl1271_power_on(wl); + ret = wl1271_power_on(wl); + if (ret < 0) + goto out; msleep(WL1271_POWER_ON_SLEEP); wl1271_io_reset(wl); wl1271_io_init(wl); diff --git a/drivers/net/wireless/wl12xx/wl1271_sdio.c b/drivers/net/wireless/wl12xx/wl1271_sdio.c index 7059b5c..c41293a 100644 --- a/drivers/net/wireless/wl12xx/wl1271_sdio.c +++ b/drivers/net/wireless/wl12xx/wl1271_sdio.c @@ -152,7 +152,7 @@ static void wl1271_sdio_raw_write(struct wl1271 *wl, int addr, void *buf, } -static void wl1271_sdio_set_power(struct wl1271 *wl, bool enable) +static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) { struct sdio_func *func = wl_to_func(wl); @@ -167,6 +167,8 @@ static void wl1271_sdio_set_power(struct wl1271 *wl, bool enable) sdio_disable_func(func); sdio_release_host(func); } + + return 0; } static struct wl1271_if_operations sdio_ops = { diff --git a/drivers/net/wireless/wl12xx/wl1271_spi.c b/drivers/net/wireless/wl12xx/wl1271_spi.c index c3fdab7..de56d8d 100644 --- a/drivers/net/wireless/wl12xx/wl1271_spi.c +++ b/drivers/net/wireless/wl12xx/wl1271_spi.c @@ -312,10 +312,12 @@ static irqreturn_t wl1271_irq(int irq, void *cookie) return IRQ_HANDLED; } -static void wl1271_spi_set_power(struct wl1271 *wl, bool enable) +static int wl1271_spi_set_power(struct wl1271 *wl, bool enable) { if (wl->set_power) wl->set_power(enable); + + return 0; } static struct wl1271_if_operations spi_ops = { -- 1.7.0.4