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authorLinus Walleij <linus.walleij@linaro.org>2020-11-23 13:23:46 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-11-26 11:15:31 +0300
commitf3ef38160e3dacb490483eb2104b4ce05cd97058 (patch)
treef6c04949c31dff4465f8e17e0b379e1c0d1bcdbf /arch/arm/mach-omap1
parent93c747ed00c1c74316645f7761f0cdb3f3d3952d (diff)
downloadlinux-f3ef38160e3dacb490483eb2104b4ce05cd97058.tar.xz
usb: isp1301-omap: Convert to use GPIO descriptors
This modernized the ISP1301 a bit by switching it to provide a GPIO descriptor from the H2 board if used. Cc: Tony Lindgren <tony@atomide.com> Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20201123102346.48284-1-linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/mach-omap1')
-rw-r--r--arch/arm/mach-omap1/board-h2.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index cb7ce627ffe8..c40cf5ef8607 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -16,6 +16,7 @@
* Copyright (C) 2004 Nokia Corporation by Imre Deak <imre.deak@nokia.com>
*/
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
@@ -46,6 +47,9 @@
#include "common.h"
#include "board-h2.h"
+/* The first 16 SoC GPIO lines are on this GPIO chip */
+#define OMAP_GPIO_LABEL "gpio-0-15"
+
/* At OMAP1610 Innovator the Ethernet is directly connected to CS1 */
#define OMAP1610_ETHR_START 0x04000300
@@ -334,7 +338,19 @@ static struct i2c_board_info __initdata h2_i2c_board_info[] = {
I2C_BOARD_INFO("tps65010", 0x48),
.platform_data = &tps_board,
}, {
- I2C_BOARD_INFO("isp1301_omap", 0x2d),
+ .type = "isp1301_omap",
+ .addr = 0x2d,
+ .dev_name = "isp1301",
+ },
+};
+
+static struct gpiod_lookup_table isp1301_gpiod_table = {
+ .dev_id = "isp1301",
+ .table = {
+ /* Active low since the irq triggers on falling edge */
+ GPIO_LOOKUP(OMAP_GPIO_LABEL, 2,
+ NULL, GPIO_ACTIVE_LOW),
+ { },
},
};
@@ -406,8 +422,10 @@ static void __init h2_init(void)
h2_smc91x_resources[1].end = gpio_to_irq(0);
platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
omap_serial_init();
+
+ /* ISP1301 IRQ wired at M14 */
+ omap_cfg_reg(M14_1510_GPIO2);
h2_i2c_board_info[0].irq = gpio_to_irq(58);
- h2_i2c_board_info[1].irq = gpio_to_irq(2);
omap_register_i2c_bus(1, 100, h2_i2c_board_info,
ARRAY_SIZE(h2_i2c_board_info));
omap1_usb_init(&h2_usb_config);