Commit graph

4 commits

Author SHA1 Message Date
Jingoo Han 46ddeff30e serial: st-asc: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-27 16:24:33 -07:00
Julia Lawall 3abeff77c8 serial: st-asc: replace devm_request_and_ioremap by devm_ioremap_resource
Use devm_ioremap_resource instead of devm_request_and_ioremap.

This was done using the semantic patch
scripts/coccinelle/api/devm_ioremap_resource.cocci
and various manual modifications to move associated calls to
platform_get_resource closer to the resulting call to devm_ioremap_resource
and to remove the associated error handling code.

The initialization of port->mapbase is also moved lower, to take advantage
of the NULL test on res performed by devm_ioremap_resource.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-19 17:12:21 -07:00
Srinivas Kandagatla a4f2dc9efc serial: st-asc: Fix unused variable warning for non DT.
This patch fixes a below warning reported by kbuild test robot.

drivers/tty/serial/st-asc.c:727:28: warning: 'asc_match' defined but
 not used [-Wunused-variable]

The code used in DT case is now ifdefed under CONFIG_OF to fix this
warning.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Reported-by: Kbuild Test Robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-03 11:38:29 +08:00
Srinivas Kandagatla c4b0585607 serial:st-asc: Add ST ASC driver.
This patch adds support to ASC (asynchronous serial controller)
driver, which is basically a standard serial driver. This IP is common
across all the ST parts for settop box platforms.

ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
It support all industry standard baud rates.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-26 16:08:02 -07:00