This patch series adds the driver for GENI based Qualcomm Universal
Peripheral (QUP) Serial Peripheral Interface (SPI) and SPI device tree
bindings.
An overview of the GENI SE SPI controller device tree components are in
patch 2 and 1. Patch 3 adds the SPI driver for GENI QUP HW.
changes from v4:
- Patch 1/3 and 2/3 are unchanged
- squashed patch 4/4 into 3/4 as suggested
- Patch 3/3 changes are follows:
* Add SPI M_COMMAND OPCODE to handle different geni command
handling
* Remove forward declaration of ISR
* Remove unused variable rx_fifo_depth in spi_master structure
* Declare cur_speed_hz as unsigned long to match clock framework
* Declare cur_xfer as const pointer
* Newline in error print
* Correct consecutive spelling
* Rename trans_len to len and restructure the lines in
setup_fifo_xfer()
* Rename timeout to time_left and restructure the
handle_fifo_timeout()
* Add check for '0' bytes transfer as part of
spi_geni_transfer_one()
* Correct if-else check in geni_byte_per_fifo_word()
* Remove NULL current transfer check in
geni_spi_handle_tx()/geni_spi_handle_rx() and make these
functions as void.
* Hoist rx_last_byte_valid variable into function scope
* Remove RT check in ISR and add cur_mcmd handling
* Correct the error prints in ISR
* In spi_alloc_master() pass 2nd arg as sizeof(*mas) for code
clarity
* Use ret = PTR_ERR(se->base) for devm_ioremap_resource() err
return
* Move request irq code to probe() and used request_irq() in place
of devm_request_irq()
* Rewrite suspend/resume function
* Add MODULE_DEVICE_TABLE(of, spi_geni_dt_match);
* Remove include/linux/spi/spi-geni-qcom.h file
Dilip Kota (2):
dt-bindings: soc: qcom: Remove SPI controller maximum frequency
binding
dt-bindings: soc: qcom: GENI SE SPI controller device tree binding
Girish Mahadevan (1):
spi: spi-geni-qcom: Add SPI driver support for GENI based QUP
.../devicetree/bindings/soc/qcom/qcom,geni-se.txt | 29 +-
.../devicetree/bindings/spi/qcom,spi-geni-qcom.txt | 39 ++
drivers/spi/Kconfig | 12 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-geni-qcom.c | 703 +++++++++++++++++++++
5 files changed, 757 insertions(+), 27 deletions(-)
create mode 100644 Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.txt
create mode 100644 drivers/spi/spi-geni-qcom.c
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
