Commit Graph

8 Commits

Author SHA1 Message Date
Philipp Zabel
1e13c7fb49 remoteproc: st: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: linux-remoteproc@vger.kernel.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-08-27 23:18:52 -07:00
Loic Pallardy
231c8dfd1a remoteproc: st: add virtio communication support
This patch provides virtio communication support based on mailbox
for ST co-processors.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-02-06 13:10:12 -08:00
Loic Pallardy
3e49ecf6b4 remoteproc: st: correct probe error management
Associated clock is prepared in st_rproc_parse_dt function.
it should be unprepared in case of error during probing.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-02-06 13:09:01 -08:00
Bhumika Goyal
c008fad264 drivers: remoteproc: constify rproc_ops structures
Declare rproc_ops structures as const as they are only passed as an
argument to the function rproc_alloc. This argument is of type const, so
rproc_ops structures having this property can be declared const too.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct rproc_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
@@
rproc_alloc(...,&i@p,...)

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct rproc_ops i;

File size details:

Size of the file remoteproc/da8xx_remoteproc.o remains the same before and
after applying the changes.

   text	   data	    bss	    dec	    hex	filename
   1312	    100	      4	   1416	    588 remoteproc/da8xx_remoteproc.o
   1312	    100	      4	   1416	    588 remoteproc/da8xx_remoteproc.o

    970	    240	      0	   1210	    4ba remoteproc/omap_remoteproc.o
   1002	    192	      0	   1194	    4aa remoteproc/omap_remoteproc.o

   1901	    240	      0	   2141	    85d remoteproc/st_remoteproc.o
   1933	    192	      0	   2125	    84d remoteproc/st_remoteproc.o

   1288	     96	      0	   1384	    568 remoteproc/st_slim_rproc.o
   1320	     64	      0	   1384	    568 remoteproc/st_slim_rproc.o

   2121	    240	      0	   2361	    939 remoteproc/wkup_m3_rproc.o
   2161	    192	      0	   2353	    931 remoteproc/wkup_m3_rproc.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-01-18 10:46:50 -08:00
Wei Yongjun
1d701d3dd8 remoteproc: st: Fix error return code in st_rproc_probe()
Fix to return a negative error code from the st_rproc_state() error
handling case instead of 0, as done elsewhere in this function.

Fixes: 63edb0310a ("remoteproc: Supply controller driver for ST's Remote Processors")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-10-31 17:36:10 -07:00
Bjorn Andersson
433c0e04bc remoteproc: Split driver and consumer dereferencing
In order to be able to lock a rproc driver implementations only when
used by a client, we must differ between the dereference operation of a
client and the implementation itself.

This patch brings no functional change.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-10-02 22:50:21 -07:00
Vladimir Zapolskiy
4b28038fd6 remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value
syscon_regmap_lookup_by_phandle() returns either a valid pointer to
struct regmap or ERR_PTR() error value, check for NULL is invalid and
on error path may lead to oops, the change corrects the check.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-03-28 16:19:00 -07:00
Lee Jones
63edb0310a remoteproc: Supply controller driver for ST's Remote Processors
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-01-29 17:26:49 -08:00