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* spi: rb4xx: switch to use modern nameYang Yingliang2023-08-211-18/+18
| | | | | | | | | | Change legacy name master to modern name host or controller. No functional changed. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20230818093154.1183529-11-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: Get rid of old SPI_MASTER_MUST_TX & SPI_MASTER_MUST_RXAndy Shevchenko2023-07-111-1/+1
| | | | | | | | | | Convert the users from SPI_MASTER_MUST_TX and/or SPI_MASTER_MUST_RX to SPI_CONTROLLER_MUST_TX and/or SPI_CONTROLLER_MUST_RX respectively and kill the not used anymore definitions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230710154932.68377-13-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: Replace all spi->chip_select and spi->cs_gpiod references with function ↵Amit Kumar Mahapatra via Alsa-devel2023-03-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | call Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod members of struct spi_device to be an array. But changing the type of these members to array would break the spi driver functionality. To make the transition smoother introduced four new APIs to get/set the spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and spi->cs_gpiod references with get or set API calls. While adding multi-cs support in further patches the chip_select & cs_gpiod members of the spi_device structure would be converted to arrays & the "idx" parameter of the APIs would be used as array index i.e., spi->chip_select[idx] & spi->cs_gpiod[idx] respectively. Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com> Acked-by: Heiko Stuebner <heiko@sntech.de> # Rockchip drivers Reviewed-by: Michal Simek <michal.simek@amd.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> # Aspeed driver Reviewed-by: Dhruva Gole <d-gole@ti.com> # SPI Cadence QSPI Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> # spi-stm32-qspi Acked-by: William Zhang <william.zhang@broadcom.com> # bcm63xx-hsspi driver Reviewed-by: Serge Semin <fancer.lancer@gmail.com> # DW SSI part Link: https://lore.kernel.org/r/167847070432.26.15076794204368669839@mailman-core.alsa-project.org Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: Convert to platform remove callback returning voidUwe Kleine-König2023-03-061-4/+2
| | | | | | | | | | | | | | | | | The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230303172041.2103336-58-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: Don't leak SPI master in probe error pathLukas Wunner2020-12-071-1/+1
| | | | | | | | | | | | | | | | If the calls to devm_clk_get(), devm_spi_register_master() or clk_prepare_enable() fail on probe of the Mikrotik RB4xx SPI driver, the spi_master struct is erroneously not freed. Fix by switching over to the new devm_spi_alloc_master() helper. Fixes: 05aec357871f ("spi: Add SPI driver for Mikrotik RB4xx series boards") Signed-off-by: Lukas Wunner <lukas@wunner.de> Cc: <stable@vger.kernel.org> # v4.2+: 5e844cc37a5c: spi: Introduce device-managed SPI controller allocation Cc: <stable@vger.kernel.org> # v4.2+ Cc: Bert Vermeulen <bert@biot.com> Link: https://lore.kernel.org/r/369bf26d71927f60943b1d9d8f51810f00b0237d.1607286887.git.lukas@wunner.de Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: update driver to be device tree awareChristopher Hill2020-05-221-0/+9
| | | | | | | | This patch updates the spi driver spi-rb4xx.c to be device tree aware Signed-off-by: Christopher Hill <ch6574@gmail.com> Link: https://lore.kernel.org/r/20200521183631.37806-2-ch6574@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: null pointer bug fixChristopher Hill2020-05-221-5/+5
| | | | | | | | | This patch fixes a null pointer bug in the spi driver spi-rb4xx.c by moving the private data initialization to earlier in probe Signed-off-by: Christopher Hill <ch6574@gmail.com> Link: https://lore.kernel.org/r/20200521183631.37806-1-ch6574@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: use devm_platform_ioremap_resource() to simplify codeYueHaibing2019-09-041-3/+1
| | | | | | | | | | Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190904135918.25352-25-yuehaibing@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* spi: rb4xx: Use SPI_BPW_MASK to set bits_per_word_maskAxel Lin2018-10-101-1/+1
| | | | | | | Improve readability a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: Fix checking return value of devm_ioremap_resource()Axel Lin2015-05-011-1/+1
| | | | | | | devm_ioremap_resource() returns ERR_PTR on failure. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: rb4xx: Fix set_cs logic.Bert Vermeulen2015-04-201-1/+1
| | | | | | | | | | | As it turns out, the set_cs() enable parameter refers to the logic level on the CS pin, not the state of chip selection. This broke functionality of the LEDs behind the CPLD, or at least delayed the commands until another one came in to toggle CS. Signed-off-by: Bert Vermeulen <bert@biot.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* spi: Add SPI driver for Mikrotik RB4xx series boardsBert Vermeulen2015-04-181-0/+210
This driver mediates access between the connected CPLD and other devices on the bus. The m25p80-compatible boot flash and (some models) MMC use regular SPI, bitbanged as required by the SoC. However the SPI-connected CPLD has a two-wire mode, in which two bits are transferred per SPI clock cycle. The second bit is transmitted with the SoC's CS2 pin. Signed-off-by: Bert Vermeulen <bert@biot.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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