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zephyr/drivers/spi
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Michael Hope e68287dd90 drivers: spi: fix the fast path on the SAM0 driver 
To keep the bus fully loaded, the SAM0 has a fast path that recognises
special cases like TX only, RX only, or TX/RX of the same size.
Commit #ea2431f32f7 accidentally disabled this.

This increases the utilisation from around 30 % to around 90 % at 48
MHz.

Signed-off-by: Michael Hope <mlhx@google.com>
2020-07-06 10:02:14 -04:00
..
CMakeLists.txt drivers: spi: Add Gecko SPI driver 2020-01-10 07:14:35 -06:00
Kconfig kconfig: Replace non-defconfig single-symbol 'if's with 'depends on' 2020-02-12 10:32:34 -06:00
Kconfig.cc13xx_cc26xx kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.dw kconfig: Remove redundant SPI_DW dep on SPI_DW_ACCESS_WORD_ONLY 2020-02-08 09:58:33 +02:00
Kconfig.gecko kconfig: Turn pointless 'menuconfig's into 'config's 2020-01-24 21:30:17 -05:00
Kconfig.litex kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.mcux_dspi kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.mcux_flexcomm drivers: spi: kconfig: Turn pointless 'menuconfig' into 'config' 2020-01-03 07:32:32 -06:00
Kconfig.mcux_lpspi kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.nrfx drivers: nrf: Remove no longer suitable dependencies on Kconfig options 2020-04-03 14:47:32 +02:00
Kconfig.oc_simple kconfig: Replace non-defconfig single-symbol 'if's with 'depends on' 2020-02-12 10:32:34 -06:00
Kconfig.rv32m1_lpspi kconfig: Fix up newly-introduced copy-pasted headers 2019-11-19 15:25:08 -05:00
Kconfig.sam drivers: spi: spi_sam: rework device tree support 2020-04-25 09:29:54 -05:00
Kconfig.sam0 kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.sifive kconfig: Replace non-defconfig single-symbol 'if's with 'depends on' 2020-02-12 10:32:34 -06:00
Kconfig.stm32 drivers: spi: Enable dma transfer for SPI on stm32 2020-05-04 09:46:07 -05:00
Kconfig.xec_qmspi kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
spi_cc13xx_cc26xx.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_context.h drivers: spi: CS configuration through devicetree 2020-07-01 16:40:03 -05:00
spi_dw.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_dw.h zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_dw_regs.h drivers: spi_dw: add WORD only access support 2019-09-17 20:40:38 +08:00
spi_gecko.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_handlers.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_litespi.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_litespi.h zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_ll_stm32.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_ll_stm32.h zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_mcux_dspi.c drivers: spi: Add optional delays to mcux dspi and lpspi drivers 2020-07-02 07:57:36 -04:00
spi_mcux_flexcomm.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_mcux_lpspi.c drivers: spi: Add optional delays to mcux dspi and lpspi drivers 2020-07-02 07:57:36 -04:00
spi_nrfx_spi.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_nrfx_spim.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_nrfx_spis.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_oc_simple.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_oc_simple.h zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_rv32m1_lpspi.c drivers: spi: rv32m1_lpspi: Fix null tx 2020-06-17 09:30:12 +02:00
spi_sam.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_sam0.c drivers: spi: fix the fast path on the SAM0 driver 2020-07-06 10:02:14 -04:00
spi_sifive.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_sifive.h zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
spi_xec_qmspi.c zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00