This patch ports the Linux driver for DataImage SCF0403852GGU04 and SCF0403526GGU20 LCD panels into U-Boot. As a preparation step, variable SPI word length support is added to omap3_spi and the generic SPI interface. Finally, the driver is used in cm_t35 board.
The SPI changes were tested with a Beagle I2C/SPI/MDIO Protocol Analyzer, and also with a DataImage SCF0403 lcd as part of the DataImage driver test. Patch number 6 depends on http://patchwork.ozlabs.org/patch/275283/ Cc: Tom Rini <tr...@ti.com> Cc: Anatolij Gustschin <ag...@denx.de> Cc: Igor Grinberg <grinb...@compulab.co.il> Cc: Jagannadha Sutradharudu Teki <jagannadh.t...@gmail.com> Changes in V2: - Rebased on top of latest U-Boot - New patches: 1) spi: omap3: remove semicolon from #define 2) spi: define SPI_XFER_ONCE 3) omap3_dss: define DSS_ONOFF 1 is a preliminary cleanup suggested by Gerhard Sittig and Igor Grinberg 2 and 3 are splitting off some new #defines to separate patches - Moved wordlen to generic spi_slave struct, and added generic implementation for spi_set_wordlen which only updates the struct without touching the hardware (Igor Grinberg) - Updated wordlen in hardware just before doing SPI transactions, not when changing wordlen (Igor Grinberg) - OMAP3 specific check of wordlen value from old implementation of spi_set_wordlen moved to xfer. It refines the more general check done in the new spi_set_wordlen. - Fixed comment style in spi.h following a rebase on top of latest U-Boot - Added SPDX-License-Identifier to all new files (Anatolij Gustschin) - s/printf/puts for not formatted strings in scf0403 driver (Anatolij Gustschin) - Do not fail scf0403 driver init if an invalid reset_gpio is given (Igor Grinberg) Nikita Kiryanov (6): spi: omap3: remove semicolon from #define spi: omap3: add support for more word lengths spi: define SPI_XFER_ONCE lcd: add DataImage SCF0403x LCD panel support omap3_dss: define DSS_ONOFF cm_t35: use scf0403 driver arch/arm/include/asm/arch-omap3/dss.h | 9 +- board/compulab/cm_t35/cm_t35.c | 12 ++ board/compulab/common/omap3_display.c | 46 +++++- drivers/spi/omap3_spi.c | 71 +++++--- drivers/spi/omap3_spi.h | 8 +- drivers/spi/spi.c | 13 ++ drivers/video/Makefile | 1 + drivers/video/scf0403_lcd.c | 296 ++++++++++++++++++++++++++++++++++ include/configs/cm_t35.h | 3 + include/scf0403_lcd.h | 11 ++ include/spi.h | 17 ++ 11 files changed, 456 insertions(+), 31 deletions(-) create mode 100644 drivers/video/scf0403_lcd.c create mode 100644 include/scf0403_lcd.h -- 1.8.1.2 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
