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When ARCH=x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/pinctrl/bcm/pinctrl-bcm4908.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/pinctrl/pinctrl-mcp23s08_i2c.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/pinctrl/pinctrl-mcp23s08_spi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/pinctrl/pinctrl-mcp23s08.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/pinctrl/meson/pinctrl-meson.o
Add the missing invocation of the MODULE_DESCRIPTION() macro to all
files which have a MODULE_LICENSE().
This includes many meson drivers which, although they did not produce
a warning with the x86 allmodconfig configuration, may cause this
warning with ARM or ARM64 configurations.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> # for Amlogic Pinctrl drivers
Link: https://lore.kernel.org/r/20240610-md-drivers-pinctrl-v1-1-68462e3d960c@quicinc.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add struct mcp23s08_info and simplify probe()/mcp23s08_spi_regmap_init() by
replacing match data 'type' with 'struct mcp23s08_info'.
While at it, replace 'dev_err()'->'dev_err_probe()' and drop printing
'type' in error path for i2c_get_match_data().
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231001150113.7752-4-biju.das.jz@bp.renesas.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Simpilfy probe() by replacing device_get_match_data() and ID lookup for
retrieving match data by spi_get_device_match_data().
While at it, replace data type of variable type from 'int'->'unsigned int'
and declare variables following a reverse christmas tree order.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231001150113.7752-3-biju.das.jz@bp.renesas.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).
Fixes: 0f04a81784fe ("pinctrl: mcp23s08: Split to three parts: core, I²C, SPI")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230621100409.1608395-1-claudiu.beznea@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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It is useful for debugging to have the error message printed
when regmap initialisation fails. Add it to the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Martin Hundebøll <martin@geanix.com>
Link: https://lore.kernel.org/r/20201009180856.4738-2-andriy.shevchenko@linux.intel.com
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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It appears that simplification of mcp23s08_spi_regmap_init() made
a regression due to wrong size calculation for dev_kmemdup() call.
It misses the fact that config variable is already a pointer, thus
the sizeof() calculation is wrong and only 4 or 8 bytes were copied.
Fix the parameters to devm_kmemdup() to copy a full chunk of memory.
Fixes: 0874758ecb2b ("pinctrl: mcp23s08: Refactor mcp23s08_spi_regmap_init()")
Reported-by: Martin Hundebøll <martin@geanix.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Martin Hundebøll <martin@geanix.com>
Link: https://lore.kernel.org/r/20201009180856.4738-1-andriy.shevchenko@linux.intel.com
Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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drivers/pinctrl/pinctrl-mcp23s08_spi.c:129:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Fixes: 0f04a81784fe ("pinctrl: mcp23s08: Split to three parts: core, I²C, SPI")
Signed-off-by: kernel test robot <lkp@intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200608010253.GA79576@44f7ab9e8d59
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Split the driver to three parts: core, I²C, SPI.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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