Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1678364

[PATCH 1/6] sh: sh7785lcr: add GPIO lookup table for i2c controller reset

Show all headers | View raw

Define the GPIO connected to the PCA9564 using a GPIO lookup table. This
will allow the i2c-pca-platform driver to use the device managed APIs to
lookup the gpio instead of using platform_data.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
 arch/sh/boards/board-sh7785lcr.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/sh/boards/board-sh7785lcr.c b/arch/sh/boards/board-sh7785lcr.c
index 2c4771ee84cd..4c321d0da945 100644
--- a/arch/sh/boards/board-sh7785lcr.c
+++ b/arch/sh/boards/board-sh7785lcr.c
@@ -25,6 +25,7 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/errno.h>
+#include <linux/gpio/machine.h>
 #include <mach/sh7785lcr.h>
 #include <cpu/sh7785.h>
 #include <asm/heartbeat.h>
@@ -243,6 +244,14 @@ static struct resource i2c_resources[] = {
 	},
 };
 
+static struct gpiod_lookup_table i2c_gpio_table = {
+	.dev_id = "i2c.0",
+	.table = {
+		GPIO_LOOKUP("pfc-sh7757", 0, "reset-gpios", GPIO_ACTIVE_LOW),
+		{ },
+	},
+};
+
 static struct i2c_pca9564_pf_platform_data i2c_platform_data = {
 	.gpio			= 0,
 	.i2c_clock_speed	= I2C_PCA_CON_330kHz,
@@ -283,6 +292,7 @@ static int __init sh7785lcr_devices_setup(void)
 		i2c_device.num_resources = ARRAY_SIZE(i2c_proto_resources);
 	}
 
+	gpiod_add_lookup(&i2c_gpio_table);
 	return platform_add_devices(sh7785lcr_devices,
 				    ARRAY_SIZE(sh7785lcr_devices));
 }
-- 
2.13.0

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH 1/6] sh: sh7785lcr: add GPIO lookup table for i2c controller reset Chris Packham <chris.packham@alliedtelesis.co.nz> - 2017-06-30 03:00 +0200
  Re: [PATCH 1/6] sh: sh7785lcr: add GPIO lookup table for i2c  controller reset kbuild test robot <lkp@intel.com> - 2017-07-02 18:40 +0200
    Re: [PATCH 1/6] sh: sh7785lcr: add GPIO lookup table for i2c  controller reset Geert Uytterhoeven <geert@linux-m68k.org> - 2017-07-02 19:20 +0200

csiph-web