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* mfd: rsmu_spi: Remove redundant of_match_ptr()Zhu Wang2023-08-221-1/+1
| | | | | | | | | The driver depends on CONFIG_OF, so it is not necessary to use of_match_ptr() here. We remove of_match_ptr() here. Signed-off-by: Zhu Wang <wangzhu9@huawei.com> Link: https://lore.kernel.org/r/20230808130023.202700-4-wangzhu9@huawei.com Signed-off-by: Lee Jones <lee@kernel.org>
* mfd: rsmu: Support 32-bit address spaceMin Li2023-04-261-19/+33
| | | | | | | | | | | | We used to assume 0x2010xxxx address. Now that we need to access 0x2011xxxx address, we need to support read/write the whole 32-bit address space. Also defined RSMU_MAX_WRITE_COUNT and RSMU_MAX_READ_COUNT for readability Signed-off-by: Min Li <min.li.xe@renesas.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/MW5PR03MB693295AF31ABCAF6AE52EE74A08B9@MW5PR03MB6932.namprd03.prod.outlook.com
* mfd: rsmu_spi: Remove unneeded casts of void *Geert Uytterhoeven2023-04-261-2/+2
| | | | | | | | There is no need to cast a "void *" to a different type of pointer. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/ae84c1751e79cb49ab584557f4ecd835a8493d7c.1678704562.git.geert+renesas@glider.be
* spi: make remove callback a void functionUwe Kleine-König2022-02-091-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The value returned by an spi driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Claudius Heine <ch@denx.de> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC Acked-by: Marcus Folkesson <marcus.folkesson@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-6-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
* mfd: Add Renesas Synchronization Management Unit (SMU) supportMin Li2021-07-131-0/+273
Add support for ClockMatrix(TM) and 82P33xxx families of timing and synchronization devices. The access interface can be either SPI or I2C. Currently, it will create 2 types of MFD devices, which are to be used by the corresponding rsmu character device driver and the PTP hardware clock driver, respectively. Signed-off-by: Min Li <min.li.xe@renesas.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>