The patch spi: Don't call spi_get_gpio_descs() before device name is set
has been applied to the spi tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 0a919ae49223d32ac0e8be3494547fcd1e4aa0aa Mon Sep 17 00:00:00 2001 From: Andrey Smirnov <andrew.smir...@gmail.com> Date: Tue, 2 Apr 2019 21:01:28 -0700 Subject: [PATCH] spi: Don't call spi_get_gpio_descs() before device name is set Move code calling spi_get_gpio_descs() to happen after ctlr->dev's name is set in order to have proper GPIO consumer names. Before: cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-31, parent: platform/40049000.gpio, vf610-gpio: gpio-6 ( |regulator-usb0-vbus ) out lo gpiochip1: GPIOs 32-63, parent: platform/4004a000.gpio, vf610-gpio: gpio-36 ( |scl ) in hi gpio-37 ( |sda ) in hi gpio-40 ( |(null) CS1 ) out lo gpio-41 ( |(null) CS0 ) out lo ACTIVE LOW gpio-42 ( |miso ) in hi gpio-43 ( |mosi ) in lo gpio-44 ( |sck ) out lo After: cat /sys/kernel/debug/gpio gpiochip0: GPIOs 0-31, parent: platform/40049000.gpio, vf610-gpio: gpio-6 ( |regulator-usb0-vbus ) out lo gpiochip1: GPIOs 32-63, parent: platform/4004a000.gpio, vf610-gpio: gpio-36 ( |scl ) in hi gpio-37 ( |sda ) in hi gpio-40 ( |spi0 CS1 ) out lo gpio-41 ( |spi0 CS0 ) out lo ACTIVE LOW gpio-42 ( |miso ) in hi gpio-43 ( |mosi ) in lo gpio-44 ( |sck ) out lo Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com> Cc: Mark Brown <broo...@kernel.org> Cc: Chris Healy <cphe...@gmail.com> Cc: linux-...@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown <broo...@kernel.org> --- drivers/spi/spi.c | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 2ad20c735b61..a83fcddf1dad 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -2281,24 +2281,6 @@ int spi_register_controller(struct spi_controller *ctlr) if (status) return status; - if (!spi_controller_is_slave(ctlr)) { - if (ctlr->use_gpio_descriptors) { - status = spi_get_gpio_descs(ctlr); - if (status) - return status; - /* - * A controller using GPIO descriptors always - * supports SPI_CS_HIGH if need be. - */ - ctlr->mode_bits |= SPI_CS_HIGH; - } else { - /* Legacy code path for GPIOs from DT */ - status = of_spi_register_master(ctlr); - if (status) - return status; - } - } - /* even if it's just one always-selected device, there must * be at least one chipselect */ @@ -2355,6 +2337,25 @@ int spi_register_controller(struct spi_controller *ctlr) * registration fails if the bus ID is in use. */ dev_set_name(&ctlr->dev, "spi%u", ctlr->bus_num); + + if (!spi_controller_is_slave(ctlr)) { + if (ctlr->use_gpio_descriptors) { + status = spi_get_gpio_descs(ctlr); + if (status) + return status; + /* + * A controller using GPIO descriptors always + * supports SPI_CS_HIGH if need be. + */ + ctlr->mode_bits |= SPI_CS_HIGH; + } else { + /* Legacy code path for GPIOs from DT */ + status = of_spi_register_master(ctlr); + if (status) + return status; + } + } + status = device_add(&ctlr->dev); if (status < 0) { /* free bus id */ -- 2.20.1
