[RFC PATCH 2/5] ARM: ep93xx: add gpiod_lookup_table for spi chip-selects
Chris Packham
chris.packham at alliedtelesis.co.nz
Wed May 24 21:30:40 PDT 2017
This is a preparatory step which will allow the conversion of
spi-ep93xx.c to gpiod.
Signed-off-by: Chris Packham <chris.packham at alliedtelesis.co.nz>
---
arch/arm/mach-ep93xx/edb93xx.c | 12 ++++++++++++
arch/arm/mach-ep93xx/simone.c | 11 +++++++++++
arch/arm/mach-ep93xx/vision_ep9307.c | 15 +++++++++++++++
3 files changed, 38 insertions(+)
diff --git a/arch/arm/mach-ep93xx/edb93xx.c b/arch/arm/mach-ep93xx/edb93xx.c
index 0ac176386789..9042adfe03de 100644
--- a/arch/arm/mach-ep93xx/edb93xx.c
+++ b/arch/arm/mach-ep93xx/edb93xx.c
@@ -27,6 +27,8 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/spi/spi.h>
@@ -116,6 +118,15 @@ static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
},
};
+static struct gpiod_lookup_table edb93xx_gpios_table = {
+ .dev_id = "spi.0",
+ .table = {
+ GPIO_LOOKUP("gpio-ep93xx", EP93XX_GPIO_LINE_EGPIO6,
+ "spi-cs", GPIO_ACTIVE_HIGH),
+ {},
+ },
+};
+
static int edb93xx_spi_chipselects[] __initdata = {
EP93XX_GPIO_LINE_EGPIO6,
};
@@ -134,6 +145,7 @@ static void __init edb93xx_register_spi(void)
else if (machine_is_edb9315a())
edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14;
+ gpiod_add_lookup_table(&edb93xx_gpios_table);
ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info,
ARRAY_SIZE(edb93xx_spi_board_info));
}
diff --git a/arch/arm/mach-ep93xx/simone.c b/arch/arm/mach-ep93xx/simone.c
index c7a40f245892..f297a7a89ed9 100644
--- a/arch/arm/mach-ep93xx/simone.c
+++ b/arch/arm/mach-ep93xx/simone.c
@@ -26,6 +26,7 @@
#include <linux/platform_data/video-ep93xx.h>
#include <linux/platform_data/spi-ep93xx.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <mach/hardware.h>
#include <mach/gpio-ep93xx.h>
@@ -119,6 +120,15 @@ static struct spi_board_info simone_spi_devices[] __initdata = {
* low between multi-message command blocks. From v1.4, it uses a GPIO instead.
* v1.3 parts will still work, since the signal on SFRMOUT is automatic.
*/
+static struct gpiod_lookup_table simone_gpios_table = {
+ .dev_id = "spi.0",
+ .table = {
+ GPIO_LOOKUP("gpio-ep93xx", EP93XX_GPIO_LINE_EGPIO1,
+ "spi-cs", GPIO_ACTIVE_HIGH),
+ {},
+ },
+};
+
static int simone_spi_chipselects[] __initdata = {
EP93XX_GPIO_LINE_EGPIO1,
};
@@ -163,6 +173,7 @@ static void __init simone_init_machine(void)
ep93xx_register_fb(&simone_fb_info);
ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,
ARRAY_SIZE(simone_i2c_board_info));
+ gpiod_add_lookup_table(&simone_gpios_table);
ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
ARRAY_SIZE(simone_spi_devices));
simone_register_audio();
diff --git a/arch/arm/mach-ep93xx/vision_ep9307.c b/arch/arm/mach-ep93xx/vision_ep9307.c
index 1daf9441058c..3d9c66bbf2af 100644
--- a/arch/arm/mach-ep93xx/vision_ep9307.c
+++ b/arch/arm/mach-ep93xx/vision_ep9307.c
@@ -18,6 +18,7 @@
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/fb.h>
#include <linux/io.h>
#include <linux/mtd/partitions.h>
@@ -242,6 +243,19 @@ static struct spi_board_info vision_spi_board_info[] __initdata = {
},
};
+static struct gpiod_lookup_table vision_gpios_table = {
+ .dev_id = "spi.0",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-ep93xx", EP93XX_GPIO_LINE_EGPIO6,
+ "spi-cs", 0, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio-ep93xx", EP93XX_GPIO_LINE_EGPIO7,
+ "spi-cs", 1, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio-ep93xx", EP93XX_GPIO_LINE_G(2),
+ "spi-cs", 2, GPIO_ACTIVE_HIGH),
+ {},
+ },
+};
+
static int vision_spi_chipselects[] __initdata = {
EP93XX_GPIO_LINE_EGPIO6,
EP93XX_GPIO_LINE_EGPIO7,
@@ -291,6 +305,7 @@ static void __init vision_init_machine(void)
ep93xx_register_i2c(&vision_i2c_gpio_data, vision_i2c_info,
ARRAY_SIZE(vision_i2c_info));
+ gpiod_add_lookup_table(&vision_gpios_table);
ep93xx_register_spi(&vision_spi_master, vision_spi_board_info,
ARRAY_SIZE(vision_spi_board_info));
vision_register_i2s();
--
2.13.0
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