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path: root/drivers/spi/spi-loopback-test.c
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2016-09-01spi: loopback-test: mark rx_ranges_cmp() staticBaoyou Xie1-1/+1
We get 1 warning when building kernel with W=1: drivers/spi/spi-loopback-test.c:408:5: warning: no previous prototype for 'rx_ranges_cmp' [-Wmissing-prototypes] In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. So this patch marks it 'static'. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-06-28spi: loopback-test: fix spelling mistake: "missmatch" -> "mismatch"Colin Ian King1-1/+1
trivial fix to spelling mistake in dev_err message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-15spi: fix counting in spi-loopback-test codeArnd Bergmann1-0/+1
These variables are always used uninitialized: drivers/spi/spi-loopback-test.c: In function 'spi_test_run_iter': drivers/spi/spi-loopback-test.c:768:17: warning: 'rx_count' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/spi/spi-loopback-test.c:762:17: warning: 'tx_count' may be used uninitialized in this function [-Wmaybe-uninitialized] Adding an explicit initialization seems to be the only workable solution here, to make the code behave correctly and build without warning. Fixes: 84e0c4e5e2c4 ("spi: add loopback test driver to allow for spi_master regression tests") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-08spi: loopback: fix typo in MODULE_PARM_DESCDan Carpenter1-1/+1
There should be an 's' on "dump_message" so it matches the module_param. Fixes: 84e0c4e5e2c4 ('spi: add loopback test driver to allow for spi_master regression tests') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05spi: loopback-test: spi_check_rx_ranges can get always doneMartin Sperl1-5/+14
The spi_check_rx_ranges can always get executed independent of if we have a real loopback situation. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05spi: loopback-test: rename method spi_test_fill_tx to spi_test_fill_patternMartin Sperl1-3/+4
Rename method spi_test_fill_tx to spi_test_fill_pattern to better describe what it does. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-05spi: loopback-test: write rx pattern also when running without tx_bufMartin Sperl1-4/+4
Currently the rx_buf does not get set with the SPI_TEST_PATTERN_UNWRITTEN when tx_buf == NULL in the transfer. Reorder code so that it gets done also under this specific condition. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-13spi: loopback: match configuration of test to descriptionMartin Sperl1-1/+1
The test "two tx+rx transfers - alter second" actually modifies the first not the second transfer, which - in conjunction with testing the read data - results also in overwriting data read earlier. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-13spi: loopback: fix printk format issues with size_tMartin Sperl1-3/+3
Fixes the reported printk format issues reported by kbuild-test-robot. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-12-13spi: add loopback test driver to allow for spi_master regression testsMartin Sperl1-0/+995
This driver is submitting lots of distinct spi-messages messages with all kinds of alignments and length pattern. Also distinct kinds of transfer pattern tests are implemented (rx, tx, rx/tx, tx+tx, tx+rx,...) Right now on a raspberry pi 752 distinct spi_messages are executed in 13 different scenarios. Configuration of additional test-pattern is easy, so that when new bugs in drivers get detected the relevant transfer pattern can also get added to the test framework, so that such situations are detected in other drivers as well. The idea behind this driver is to make it possible to also detect regressions in spi_master implementations when changes occur. Potentially these tests could get executed automatically in a test-server-farm. Signed-off-by: Martin Sperl <kernel@martin.sperl.org> Signed-off-by: Mark Brown <broonie@kernel.org>