i2c-i801: Simplify dependency towards GPIOLIB

Arbitrarily selecting GPIOLIB causes trouble on some architectures,
so don't do that. Instead, just make the optional multiplexing code
depend on CONFIG_I2C_MUX_GPIO instead of CONFIG_I2C_MUX for now. We
can revisit if the i2c-i801 driver ever supports other multiplexing
flavors.

Also make that optional code depend on DMI, as it won't do anything
without that.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 65dd599a02620211b8db7a1ef6bfd1d8f9cdda30..e9df4612b7ebc9710db24290b159b4bd77d5d625 100644 (file)
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -81,7 +81,6 @@ config I2C_I801
        tristate "Intel 82801 (ICH/PCH)"
        depends on PCI
        select CHECK_SIGNATURE if X86 && DMI
-       select GPIOLIB if I2C_MUX
        help
          If you say yes to this option, support will be included for the Intel
          801 family of mainboard I2C interfaces.  Specifically, the following

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 37793156bd936202a10362e7910d88708c4a9248..3bc3f73020359ed455bd5a3fce90fae17c5373b3 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -82,7 +82,8 @@
 #include <linux/wait.h>
 #include <linux/err.h>
 
-#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE
+#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
+               defined CONFIG_DMI
 #include <linux/gpio.h>
 #include <linux/i2c-mux-gpio.h>
 #include <linux/platform_device.h>
@@ -192,7 +193,8 @@ struct i801_priv {
        int len;
        u8 *data;
 
-#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE
+#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
+               defined CONFIG_DMI
        const struct i801_mux_config *mux_drvdata;
        struct platform_device *mux_pdev;
 #endif
@@ -921,7 +923,8 @@ static void __init input_apanel_init(void) {}
 static void __devinit i801_probe_optional_slaves(struct i801_priv *priv) {}
 #endif /* CONFIG_X86 && CONFIG_DMI */
 
-#if defined CONFIG_I2C_MUX || defined CONFIG_I2C_MUX_MODULE
+#if (defined CONFIG_I2C_MUX_GPIO || defined CONFIG_I2C_MUX_GPIO_MODULE) && \
+               defined CONFIG_DMI
 static struct i801_mux_config i801_mux_config_asus_z8_d12 = {
        .gpio_chip = "gpio_ich",
        .values = { 0x02, 0x03 },