On 5/21/20 5:22 AM, Serge Semin wrote:
On Wed, May 20, 2020 at 03:16:14PM +0300, Jarkko Nikula wrote:
On 5/10/20 12:50 PM, Serge Semin wrote:
Currently Intel Baytrail I2C semaphore is a feature of the DW APB I2C
platform driver. It's a bit confusing to see it's config in the menu at
some separated place with no reference to the platform code. Lets move the
config definition under the if-I2C_DESIGNWARE_PLATFORM clause. By doing so
the config menu will display the feature right below the DW I2C platform
driver item and will indent it to the right so signifying its belonging.
Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
Cc: Alexey Malahov <Alexey.Malahov@xxxxxxxxxxxxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: Paul Burton <paulburton@xxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Cc: Wolfram Sang <wsa@xxxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Frank Rowand <frowand.list@xxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
---
drivers/i2c/busses/Kconfig | 30 +++++++++++++++++-------------
1 file changed, 17 insertions(+), 13 deletions(-)
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 368aa64e9266..ed6927c4c540 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -530,8 +530,8 @@ config I2C_DESIGNWARE_CORE
config I2C_DESIGNWARE_PLATFORM
tristate "Synopsys DesignWare Platform"
- select I2C_DESIGNWARE_CORE
depends on (ACPI && COMMON_CLK) || !ACPI
+ select I2C_DESIGNWARE_CORE
help
If you say yes to this option, support will be included for the
Synopsys DesignWare I2C adapter.
@@ -539,6 +539,22 @@ config I2C_DESIGNWARE_PLATFORM
This driver can also be built as a module. If so, the module
will be called i2c-designware-platform.
+if I2C_DESIGNWARE_PLATFORM
+
+config I2C_DESIGNWARE_BAYTRAIL
+ bool "Intel Baytrail I2C semaphore support"
+ depends on ACPI
+ depends on (I2C_DESIGNWARE_PLATFORM=m && IOSF_MBI) || \
+ (I2C_DESIGNWARE_PLATFORM=y && IOSF_MBI=y)
+ help
+ This driver enables managed host access to the PMIC I2C bus on select
+ Intel BayTrail platforms using the X-Powers AXP288 PMIC. It allows
+ the host to request uninterrupted access to the PMIC's I2C bus from
+ the platform firmware controlling it. You should say Y if running on
+ a BayTrail system using the AXP288.
+
+endif # I2C_DESIGNWARE_PLATFORM
+
Is the added "if I2C_DESIGNWARE_PLATFORM" needed here? Should the "depends
on" be enough?
The idea was to add if-endif clause here for features possibly added sometime
in future. But using normal "depends on I2C_DESIGNWARE_PLATFORM" shall make
the config depicted as an indented sub-config as well. Would you like me to
remove the if-clause and use the depends on operator instead?
Yes, please remove it from this patch. Keeps this patch simpler and if
some future feature needs it then that patch(set) is the right place to
add it.
Jarkko
