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| author | David Bauer <mail@david-bauer.net> | 2021-02-17 01:29:44 +0100 |
|---|---|---|
| committer | David Bauer <mail@david-bauer.net> | 2021-02-20 01:26:33 +0100 |
| commit | d6b785d47739a84611088ab26256fa5808d06a9d (patch) | |
| tree | d45ffa6e6182ce80ec35663de8c514888655e1b8 /target/linux/ath79/patches-5.10/0054-spi-always-write-cs.patch | |
| parent | fb64e2c30f0cba887d3b183ce52de36b3e8bbb7e (diff) | |
| download | upstream-d6b785d47739a84611088ab26256fa5808d06a9d.tar.gz upstream-d6b785d47739a84611088ab26256fa5808d06a9d.tar.bz2 upstream-d6b785d47739a84611088ab26256fa5808d06a9d.zip | |
ath79: add kernel 5.10 support
This adds Kernel 5.10 support for the generic, nand and tiny subtargets.
The following patch is not contained, as it needs to be reworked:
platform/920-mikrotik-rb4xx.patch
Tested-on:
- Siemens WS-AP3610
- Enterasys WS-AP3710
- Aerohive HiveAP 121
- TP-Link TL-WA901 v2
- TP-Link TL-WR741 v1
Signed-off-by: David Bauer <mail@david-bauer.net>
Diffstat (limited to 'target/linux/ath79/patches-5.10/0054-spi-always-write-cs.patch')
| -rw-r--r-- | target/linux/ath79/patches-5.10/0054-spi-always-write-cs.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-5.10/0054-spi-always-write-cs.patch b/target/linux/ath79/patches-5.10/0054-spi-always-write-cs.patch new file mode 100644 index 0000000000..1e461cee0a --- /dev/null +++ b/target/linux/ath79/patches-5.10/0054-spi-always-write-cs.patch @@ -0,0 +1,31 @@ +Upstream commit d40f0b6f2e21 ("spi: Avoid settingthe chip select if +we don't need to") causes the SPI CS only to be asserted once and not +if it's state stays the same. + +This seems to cause problems with the SPI on the AR724x and the AR913x +(but not the AR71xx). AR934x and subsequent chips do not look affected. + +ToDo: + - Analyze if this is a hardware bug or a bug in the software. + - Send a cleaned up patch upstream. + +Signed-off-by: David Bauer <mail@david-bauer.net> + +--- a/drivers/spi/spi.c ++++ b/drivers/spi/spi.c +@@ -791,6 +791,7 @@ static void spi_set_cs(struct spi_device + { + bool enable1 = enable; + ++#if 0 + /* + * Avoid calling into the driver (or doing delays) if the chip select + * isn't actually changing from the last time this was called. +@@ -801,6 +802,7 @@ static void spi_set_cs(struct spi_device + + spi->controller->last_cs_enable = enable; + spi->controller->last_cs_mode_high = spi->mode & SPI_CS_HIGH; ++#endif + + if (!spi->controller->set_cs_timing) { + if (enable1) |