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* This automated bisection report was sent to you on the basis *
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broonie-spi/for-next boot bisection: v5.4-rc3-73-gc673f2d99c3d on jetson-tk1
Summary:
Start: c673f2d99c3d Merge remote-tracking branch 'spi/topic/ptp' into spi-next
Details: https://kernelci.org/boot/id/5daa485f59b5142f647525a0
Plain log: https://storage.kernelci.org//broonie-spi/for-next/v5.4-rc3-73-gc673f2d99c3d/arm/multi_v7_defconfig+CONFIG_SMP=n/gcc-8/lab-collabora/boot-tegra124-jetson-tk1.txt
HTML log: https://storage.kernelci.org//broonie-spi/for-next/v5.4-rc3-73-gc673f2d99c3d/arm/multi_v7_defconfig+CONFIG_SMP=n/gcc-8/lab-collabora/boot-tegra124-jetson-tk1.html
Result: 3e5ec1db8bfe spi: Fix SPI_CS_HIGH setting when using native and GPIO CS
Checks:
revert: PASS
verify: PASS
Parameters:
Tree: broonie-spi
URL: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git
Branch: for-next
Target: jetson-tk1
CPU arch: arm
Lab: lab-collabora
Compiler: gcc-8
Config: multi_v7_defconfig+CONFIG_SMP=n
Test suite: boot
Breaking commit found:
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commit 3e5ec1db8bfee845d9f8560d1c64aeaccd586398
Author: Gregory CLEMENT <[email protected]>
Date: Fri Oct 18 17:29:29 2019 +0200
spi: Fix SPI_CS_HIGH setting when using native and GPIO CS
When improving the CS GPIO support at core level, the SPI_CS_HIGH
has been enabled for all the CS lines used for a given SPI controller.
However, the SPI framework allows to have on the same controller native
CS and GPIO CS. The native CS may not support the SPI_CS_HIGH, so they
should not be setup automatically.
With this patch the setting is done only for the CS that will use a
GPIO as CS
Fixes: f3186dd87669 ("spi: Optionally use GPIO descriptors for CS GPIOs")
Cc: <[email protected]>
Signed-off-by: Gregory CLEMENT <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index f8b4654a57d3..d07517151340 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1711,15 +1711,7 @@ static int of_spi_parse_dt(struct spi_controller *ctlr, struct spi_device *spi,
spi->mode |= SPI_3WIRE;
if (of_property_read_bool(nc, "spi-lsb-first"))
spi->mode |= SPI_LSB_FIRST;
-
- /*
- * For descriptors associated with the device, polarity inversion is
- * handled in the gpiolib, so all chip selects are "active high" in
- * the logical sense, the gpiolib will invert the line if need be.
- */
- if (ctlr->use_gpio_descriptors)
- spi->mode |= SPI_CS_HIGH;
- else if (of_property_read_bool(nc, "spi-cs-high"))
+ if (of_property_read_bool(nc, "spi-cs-high"))
spi->mode |= SPI_CS_HIGH;
/* Device DUAL/QUAD mode */
@@ -1783,6 +1775,14 @@ static int of_spi_parse_dt(struct spi_controller *ctlr, struct spi_device *spi,
}
spi->chip_select = value;
+ /*
+ * For descriptors associated with the device, polarity inversion is
+ * handled in the gpiolib, so all gpio chip selects are "active high"
+ * in the logical sense, the gpiolib will invert the line if need be.
+ */
+ if ((ctlr->use_gpio_descriptors) && ctlr->cs_gpiods[spi->chip_select])
+ spi->mode |= SPI_CS_HIGH;
+
/* Device speed */
rc = of_property_read_u32(nc, "spi-max-frequency", &value);
if (rc) {
-------------------------------------------------------------------------------
Git bisection log:
-------------------------------------------------------------------------------
git bisect start
# good: [4f5cafb5cb8471e54afdc9054d973535614f7675] Linux 5.4-rc3
git bisect good 4f5cafb5cb8471e54afdc9054d973535614f7675
# bad: [c673f2d99c3d644733cc1b0ceabdec47047bbe80] Merge remote-tracking branch 'spi/topic/ptp' into spi-next
git bisect bad c673f2d99c3d644733cc1b0ceabdec47047bbe80
# good: [b2c98153f45fc17b9fcb241000f2d131ddea6030] spi: introduce spi_delay struct as "value + unit" & spi_delay_exec()
git bisect good b2c98153f45fc17b9fcb241000f2d131ddea6030
# good: [4f3d957718e7f0ac2b033dbf48c7cddecd0a8dd3] spi: pxa2xx: No need to keep pointer to platform device
git bisect good 4f3d957718e7f0ac2b033dbf48c7cddecd0a8dd3
# good: [1cb84b02bf130f34ee81f99bc7dee5bca2943ed7] spi: atmel: Remove platform data support
git bisect good 1cb84b02bf130f34ee81f99bc7dee5bca2943ed7
# bad: [fed8d8c7a6dc2a76d7764842853d81c770b0788e] spi: atmel: fix handling of cs_change set on non-last xfer
git bisect bad fed8d8c7a6dc2a76d7764842853d81c770b0788e
# bad: [3e5ec1db8bfee845d9f8560d1c64aeaccd586398] spi: Fix SPI_CS_HIGH setting when using native and GPIO CS
git bisect bad 3e5ec1db8bfee845d9f8560d1c64aeaccd586398
# good: [b2662a164f9dc48da8822e56600686d639056282] spi: pxa2xx: Set controller->max_transfer_size in dma mode
git bisect good b2662a164f9dc48da8822e56600686d639056282
# first bad commit: [3e5ec1db8bfee845d9f8560d1c64aeaccd586398] spi: Fix SPI_CS_HIGH setting when using native and GPIO CS
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