[PATCH v2 4/4] ARM: ep93xx: Add lm70 HWMON sensor to TS-72xx boards
Florian Fainelli
f.fainelli at gmail.com
Sun Sep 3 10:43:47 PDT 2017
From: H Hartley Sweeten <hsweeten at visionengravers.com>
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 at visionengravers.com>
Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
---
arch/arm/mach-ep93xx/ts72xx.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c
index 55ca3b375952..4b8fefbf62dd 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/nand.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")
--
2.11.0
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