diff options
author | John Whitmore <johnfwhitmore@gmail.com> | 2013-12-06 08:33:50 -0500 |
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committer | Mark Brown <broonie@linaro.org> | 2013-12-09 12:22:19 -0500 |
commit | 0c64bc1b5eace5f48dec7305b83ee4d613d58c94 (patch) | |
tree | 3dbf5145d25bf49171957e2fde09e43d68c9b3a4 /Documentation/spi | |
parent | 90808738fd242ef2533e86f2f481bebe8a7aa11b (diff) |
spi: Correction to typos in Documentation/spi/spi-summary
Just a few simple typo corrections.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/spi')
-rw-r--r-- | Documentation/spi/spi-summary | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/spi/spi-summary b/Documentation/spi/spi-summary index f21edb983413..f72e0d1e0da8 100644 --- a/Documentation/spi/spi-summary +++ b/Documentation/spi/spi-summary | |||
@@ -34,7 +34,7 @@ SPI slave functions are usually not interoperable between vendors | |||
34 | - It may also be used to stream data in either direction (half duplex), | 34 | - It may also be used to stream data in either direction (half duplex), |
35 | or both of them at the same time (full duplex). | 35 | or both of them at the same time (full duplex). |
36 | 36 | ||
37 | - Some devices may use eight bit words. Others may different word | 37 | - Some devices may use eight bit words. Others may use different word |
38 | lengths, such as streams of 12-bit or 20-bit digital samples. | 38 | lengths, such as streams of 12-bit or 20-bit digital samples. |
39 | 39 | ||
40 | - Words are usually sent with their most significant bit (MSB) first, | 40 | - Words are usually sent with their most significant bit (MSB) first, |
@@ -121,7 +121,7 @@ active. So the master must set the clock to inactive before selecting | |||
121 | a slave, and the slave can tell the chosen polarity by sampling the | 121 | a slave, and the slave can tell the chosen polarity by sampling the |
122 | clock level when its select line goes active. That's why many devices | 122 | clock level when its select line goes active. That's why many devices |
123 | support for example both modes 0 and 3: they don't care about polarity, | 123 | support for example both modes 0 and 3: they don't care about polarity, |
124 | and alway clock data in/out on rising clock edges. | 124 | and always clock data in/out on rising clock edges. |
125 | 125 | ||
126 | 126 | ||
127 | How do these driver programming interfaces work? | 127 | How do these driver programming interfaces work? |
@@ -139,7 +139,7 @@ a command and then reading its response. | |||
139 | 139 | ||
140 | There are two types of SPI driver, here called: | 140 | There are two types of SPI driver, here called: |
141 | 141 | ||
142 | Controller drivers ... controllers may be built in to System-On-Chip | 142 | Controller drivers ... controllers may be built into System-On-Chip |
143 | processors, and often support both Master and Slave roles. | 143 | processors, and often support both Master and Slave roles. |
144 | These drivers touch hardware registers and may use DMA. | 144 | These drivers touch hardware registers and may use DMA. |
145 | Or they can be PIO bitbangers, needing just GPIO pins. | 145 | Or they can be PIO bitbangers, needing just GPIO pins. |
@@ -548,7 +548,7 @@ SPI MASTER METHODS | |||
548 | DEPRECATED METHODS | 548 | DEPRECATED METHODS |
549 | 549 | ||
550 | master->transfer(struct spi_device *spi, struct spi_message *message) | 550 | master->transfer(struct spi_device *spi, struct spi_message *message) |
551 | This must not sleep. Its responsibility is arrange that the | 551 | This must not sleep. Its responsibility is to arrange that the |
552 | transfer happens and its complete() callback is issued. The two | 552 | transfer happens and its complete() callback is issued. The two |
553 | will normally happen later, after other transfers complete, and | 553 | will normally happen later, after other transfers complete, and |
554 | if the controller is idle it will need to be kickstarted. This | 554 | if the controller is idle it will need to be kickstarted. This |