From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755877Ab3APNyK (ORCPT ); Wed, 16 Jan 2013 08:54:10 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:42815 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755729Ab3APNyI (ORCPT ); Wed, 16 Jan 2013 08:54:08 -0500 From: Peter Ujfalusi To: Samuel Ortiz CC: , , Tero Kristo Subject: [PATCH v2 05/11] mfd: twl-core: Allocate twl_modules dynamically Date: Wed, 16 Jan 2013 14:53:53 +0100 Message-ID: <1358344439-23017-6-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 1.8.1 In-Reply-To: <1358344439-23017-1-git-send-email-peter.ujfalusi@ti.com> References: <1358344439-23017-1-git-send-email-peter.ujfalusi@ti.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 At boot time we can allocate the twl_modules array dynamically based on the twl class we are using with devm_kzalloc() instead of the static twl_modules[] array. Signed-off-by: Peter Ujfalusi --- drivers/mfd/twl-core.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index f07317b..fbff830 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -66,8 +66,6 @@ /* Triton Core internal information (BEGIN) */ -#define TWL_NUM_SLAVES 4 - /* Base Address defns for twl4030_map[] */ /* subchip/slave 0 - USB ID */ @@ -162,7 +160,7 @@ struct twl_client { struct regmap *regmap; }; -static struct twl_client twl_modules[TWL_NUM_SLAVES]; +static struct twl_client *twl_modules; /* mapping the module id to slave id and base address */ struct twl_mapping { @@ -284,6 +282,14 @@ static struct regmap_config twl6030_regmap_config[3] = { /*----------------------------------------------------------------------*/ +static inline int twl_get_num_slaves(void) +{ + if (twl_class_is_4030()) + return 4; /* TWL4030 class have four slave address */ + else + return 3; /* TWL6030 class have three slave address */ +} + static inline int twl_get_last_module(void) { if (twl_class_is_4030()) @@ -1127,17 +1133,15 @@ static int twl_remove(struct i2c_client *client) unsigned i, num_slaves; int status; - if (twl_class_is_4030()) { + if (twl_class_is_4030()) status = twl4030_exit_irq(); - num_slaves = TWL_NUM_SLAVES; - } else { + else status = twl6030_exit_irq(); - num_slaves = TWL_NUM_SLAVES - 1; - } if (status < 0) return status; + num_slaves = twl_get_num_slaves(); for (i = 0; i < num_slaves; i++) { struct twl_client *twl = &twl_modules[i]; @@ -1215,12 +1219,19 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) twl_map[TWL_MODULE_MAIN_CHARGE].base = TWL6025_BASEADD_CHARGER; twl_regmap_config = twl6030_regmap_config; - num_slaves = TWL_NUM_SLAVES - 1; } else { twl_id = TWL4030_CLASS_ID; twl_map = &twl4030_map[0]; twl_regmap_config = twl4030_regmap_config; - num_slaves = TWL_NUM_SLAVES; + } + + num_slaves = twl_get_num_slaves(); + twl_modules = devm_kzalloc(&client->dev, + sizeof(struct twl_client) * num_slaves, + GFP_KERNEL); + if (!twl_modules) { + status = -ENOMEM; + goto free; } for (i = 0; i < num_slaves; i++) { -- 1.8.1