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path: root/drivers/spi/spi-xlp.c
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2023-03-11spi: Replace all spi->chip_select and spi->cs_gpiod references with function ↵Amit Kumar Mahapatra via Alsa-devel
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>
2021-11-15spi: xlp: Remove Netlogic XLP variantsRob Herring
Netlogic XLP was removed in commit 95b8a5e0111a ("MIPS: Remove NETLOGIC support"). With those gone, the single platform left to support is Cavium ThunderX2. Remove the Netlogic variant and DT support. For simplicity, the existing kconfig name is retained. Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20211109161325.2203564-1-robh@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-04spi: xlp: use devm_platform_ioremap_resource() to simplify codeYueHaibing
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/20190904135918.25352-34-yuehaibing@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-02spi: Remove dev_err() usage after platform_get_irq()Stephen Boyd
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20190730181557.90391-42-swboyd@chromium.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489Thomas Gleixner
Based on 1 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 gpl v2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Enrico Weigelt <info@metux.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081205.495444859@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-08spi: xlp: fix error return code in xlp_spi_probe()Gustavo A. R. Silva
platform_get_irq() returns an error code, but the spi-xlp driver ignores it and always returns -EINVAL. This is not correct and, prevents -EPROBE_DEFER from being propagated properly. Notice that platform_get_irq() no longer returns 0 on error: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af Print and propagate the return value of platform_get_irq on failure. This issue was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-03-13spi: xlp: update for ARCH_VULCAN2Jayachandran C
ARCH_VULCAN arm64 platform (for Broadcom Vulcan ARM64 processors) has been discontinued. Cavium's ThunderX2 CN99XX (ARCH_THUNDER2) will be the next revision of the platform. Update compile dependencies and ACPI ID to reflect this change. There is not need to retain ARCH_VULCAN since the Vulcan processor was never in production and ARCH_VULCAN will be deleted soon. Signed-off-by: Jayachandran C <jnair@caviumnetworks.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-23spi: xlp: Fix module autoload for OF registrationJavier Martinez Canillas
If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/spi/spi-xlp.ko | grep alias alias: acpi*:BRCM900D:* After this patch: $ modinfo drivers/spi/spi-xlp.ko | grep alias alias: acpi*:BRCM900D:* alias: of:N*T*Cnetlogic,xlp832-spiC* alias: of:N*T*Cnetlogic,xlp832-spi Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-09spi: xlp: Add ACPI support for Vulcan SPI controllerKamlakant Patel
Add ACPI support for SPI controller on Broadcom Vulcan ARM64. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-28spi/xlp: SPI controller driver for Netlogic XLP SoCsKamlakant Patel
Add SPI Master controller driver for the SPI interface on XLP8XX, XLP3XX, XLP2XX, XLP9XX and XLP5XX family of Netlogic XLP MIPS64 processors. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Mark Brown <broonie@kernel.org>