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| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2017-09-03 19:43:47 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-09-21 11:22:04 +0200 |
| commit | 7aef828dfc41565f7e2f7af99be8134639d3f769 (patch) | |
| tree | 31e03b4299199dcb09d021dd424eafb8b68bee20 /arch/arm/mach-ep93xx | |
| parent | ARM: ep93xx: tidy up TS-72xx Watchdog resources (diff) | |
| download | linux-7aef828dfc41565f7e2f7af99be8134639d3f769.tar.xz linux-7aef828dfc41565f7e2f7af99be8134639d3f769.zip | |
ARM: ep93xx: Add lm70 HWMON sensor to TS-72xx boards
Register the TI TMP122 (lm70) temperature sensor driver for the TS-72xx
boards.
Originaly from Florian Fainelli. Updated to the new spi-ep93xx chip select
method.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'arch/arm/mach-ep93xx')
| -rw-r--r-- | arch/arm/mach-ep93xx/ts72xx.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c index eb9be7ef59fc..f386ebae0163 100644 --- a/arch/arm/mach-ep93xx/ts72xx.c +++ b/arch/arm/mach-ep93xx/ts72xx.c @@ -18,7 +18,10 @@ #include <linux/io.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/platform_data/spi-ep93xx.h> +#include <mach/gpio-ep93xx.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -230,6 +233,27 @@ static struct platform_device ts73xx_fpga_device = { #endif +/************************************************************************* + * SPI Bus + *************************************************************************/ +static struct spi_board_info ts72xx_spi_devices[] __initdata = { + { + .modalias = "tmp122", + .max_speed_hz = 2 * 1000 * 1000, + .bus_num = 0, + .chip_select = 0, + }, +}; + +static int ts72xx_spi_chipselects[] __initdata = { + EP93XX_GPIO_LINE_F(2), /* DIO_17 */ +}; + +static struct ep93xx_spi_info ts72xx_spi_info __initdata = { + .chipselect = ts72xx_spi_chipselects, + .num_chipselect = ARRAY_SIZE(ts72xx_spi_chipselects), +}; + static void __init ts72xx_init_machine(void) { ep93xx_init_devices(); @@ -242,6 +266,8 @@ static void __init ts72xx_init_machine(void) if (board_is_ts7300()) platform_device_register(&ts73xx_fpga_device); #endif + ep93xx_register_spi(&ts72xx_spi_info, ts72xx_spi_devices, + ARRAY_SIZE(ts72xx_spi_devices)); } MACHINE_START(TS72XX, "Technologic Systems TS-72xx SBC") |