linux-kernel - [PATCH 1/1] regmap: select REGMAP if REGMAP_MMIO and REGMAP

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Message-ID: <1350287425-19181-1-git-send-email-b29396@freescale.com>
Date:	Mon, 15 Oct 2012 15:50:25 +0800
From:	Dong Aisheng <b29396@...escale.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<broonie@...nsource.wolfsonmicro.com>, <sameo@...ux.intel.com>,
	<fengguang.wu@...el.com>, <rdunlap@...otime.net>,
	<gregkh@...uxfoundation.org>, <swarren@...dotorg.org>
Subject: [PATCH 1/1] regmap: select REGMAP if REGMAP_MMIO and REGMAP_IRQ enabled

From: Dong Aisheng <dong.aisheng@...aro.org>

The regmap_mmio and regmap_irq depend on regmap core, if not select,
we may not compile regmap core and meet compiling errors as follows
if REGMAP_MMIO is selected by client drivers:
drivers/mfd/syscon.c:94:15: error: variable 'syscon_regmap_config' has initializer but incomplete type
drivers/mfd/syscon.c:95:2: error: unknown field 'reg_bits' specified in initializer
drivers/mfd/syscon.c:95:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/syscon.c:95:2: warning: (near initialization for 'syscon_regmap_config') [enabled by default]
drivers/mfd/syscon.c:96:2: error: unknown field 'val_bits' specified in initializer
drivers/mfd/syscon.c:96:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/syscon.c:96:2: warning: (near initialization for 'syscon_regmap_config') [enabled by default]
drivers/mfd/syscon.c:97:2: error: unknown field 'reg_stride' specified in initializer
drivers/mfd/syscon.c:97:2: warning: excess elements in struct initializer [enabled by default]
drivers/mfd/syscon.c:97:2: warning: (near initialization for 'syscon_regmap_config') [enabled by default]
drivers/mfd/syscon.c: In function 'syscon_probe':
drivers/mfd/syscon.c:124:2: error: invalid use of undefined type 'struct regmap_config'
drivers/mfd/syscon.c:125:2: error: implicit declaration of function 'devm_regmap_init_mmio' [-Werror=implicit-function-declaration]
drivers/mfd/syscon.c:125:17: warning: assignment makes pointer from integer without a cast [enabled by default]
cc1: some warnings being treated as errors

drivers/mfd/Kconfig:
config MFD_SYSCON
        bool "System Controller Register R/W Based on Regmap"
	depends on OF
	select REGMAP_MMIO
	help
	  Select this option to enable accessing system control registers
	    via regmap.

Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Stephen Warren <swarren@...dotorg.org>
Cc: Samuel Ortiz <sameo@...ux.intel.com>
Cc: Fengguang Wu <fengguang.wu@...el.com>
Cc: Randy Dunlap <rdunlap@...otime.net>
Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org>
---
 drivers/base/regmap/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig
index 6be390b..f0d3054 100644
--- a/drivers/base/regmap/Kconfig
+++ b/drivers/base/regmap/Kconfig
@@ -3,7 +3,7 @@
 # subsystems should select the appropriate symbols.
 
 config REGMAP
-	default y if (REGMAP_I2C || REGMAP_SPI)
+	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_MMIO || REGMAP_IRQ)
 	select LZO_COMPRESS
 	select LZO_DECOMPRESS
 	select IRQ_DOMAIN if REGMAP_IRQ
-- 
1.7.0.4


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