From: Cyril Chemparathy <cyril@ti.com>
To: davinci-linux-open-source@linux.davincidsp.com,
spi-devel-general@lists.sourceforge.net, sameo@linux.intel.com,
rpurdie@rpsys.net, dbrownell@users.sourceforge.net
Cc: c-park@ti.com, linux-arm-kernel@lists.arm.linux.org.uk,
linux-kernel@vger.kernel.org, Cyril Chemparathy <cyril@ti.com>
Subject: [PATCH v8 07/11] davinci: add spi devices on tnetv107x evm
Date: Tue, 18 Jan 2011 14:21:41 -0500 [thread overview]
Message-ID: <1295378505-15221-8-git-send-email-cyril@ti.com> (raw)
In-Reply-To: <1295378505-15221-1-git-send-email-cyril@ti.com>
This patch adds definitions for spi devices on the tnetv107x evm platform.
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
---
arch/arm/mach-davinci/board-tnetv107x-evm.c | 43 +++++++++++++++++++++++++++
1 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c b/arch/arm/mach-davinci/board-tnetv107x-evm.c
index ef526b1..1a656e8 100644
--- a/arch/arm/mach-davinci/board-tnetv107x-evm.c
+++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
@@ -25,6 +25,7 @@
#include <linux/mtd/partitions.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
+#include <linux/spi/spi.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
@@ -37,6 +38,7 @@
#define EVM_MMC_WP_GPIO 21
#define EVM_MMC_CD_GPIO 24
+#define EVM_SPI_CS_GPIO 54
static int initialize_gpio(int gpio, char *desc)
{
@@ -202,9 +204,45 @@ static struct matrix_keypad_platform_data keypad_config = {
.no_autorepeat = 0,
};
+static void spi_select_device(int cs)
+{
+ static int gpio;
+
+ if (!gpio) {
+ int ret;
+ ret = gpio_request(EVM_SPI_CS_GPIO, "spi chipsel");
+ if (ret < 0) {
+ pr_err("cannot open spi chipsel gpio\n");
+ gpio = -ENOSYS;
+ return;
+ } else {
+ gpio = EVM_SPI_CS_GPIO;
+ gpio_direction_output(gpio, 0);
+ }
+ }
+
+ if (gpio < 0)
+ return;
+
+ return gpio_set_value(gpio, cs ? 1 : 0);
+}
+
+static struct ti_ssp_spi_data spi_master_data = {
+ .num_cs = 2,
+ .select = spi_select_device,
+ .iosel = SSP_PIN_SEL(0, SSP_CLOCK) | SSP_PIN_SEL(1, SSP_DATA) |
+ SSP_PIN_SEL(2, SSP_CHIPSEL) | SSP_PIN_SEL(3, SSP_IN) |
+ SSP_INPUT_SEL(3),
+};
+
static struct ti_ssp_data ssp_config = {
.out_clock = 250 * 1000,
.dev_data = {
+ [1] = {
+ .dev_name = "ti-ssp-spi",
+ .pdata = &spi_master_data,
+ .pdata_size = sizeof(spi_master_data),
+ },
},
};
@@ -216,6 +254,9 @@ static struct tnetv107x_device_info evm_device_info __initconst = {
.ssp_config = &ssp_config,
};
+static struct spi_board_info spi_info[] __initconst = {
+};
+
static __init void tnetv107x_evm_board_init(void)
{
davinci_cfg_reg_list(sdio1_pins);
@@ -223,6 +264,8 @@ static __init void tnetv107x_evm_board_init(void)
davinci_cfg_reg_list(ssp_pins);
tnetv107x_devices_init(&evm_device_info);
+
+ spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
}
#ifdef CONFIG_SERIAL_8250_CONSOLE
--
1.7.1
next prev parent reply other threads:[~2011-01-18 19:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 19:21 [PATCH v8 00/11] tnetv107x ssp drivers Cyril Chemparathy
2011-01-18 19:21 ` [PATCH v8 01/11] mfd: add driver for sequencer serial port Cyril Chemparathy
2011-01-19 17:43 ` Kevin Hilman
2011-01-31 0:40 ` Samuel Ortiz
2011-03-17 7:33 ` Nori, Sekhar
2011-01-18 19:21 ` [PATCH v8 02/11] spi: add ti-ssp spi master driver Cyril Chemparathy
2011-01-18 19:21 ` [PATCH v8 05/11] davinci: add tnetv107x ssp platform device Cyril Chemparathy
[not found] ` <1295378505-15221-1-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2011-01-18 19:21 ` [PATCH v8 03/11] gpio: add ti-ssp gpio driver Cyril Chemparathy
[not found] ` <1295378505-15221-4-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2011-02-28 12:34 ` Nori, Sekhar
2011-03-17 18:45 ` Grant Likely
[not found] ` <20110317184514.GP9597-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2011-03-18 6:30 ` Nori, Sekhar
2011-01-18 19:21 ` [PATCH v8 04/11] backlight: add support for tps6116x controller Cyril Chemparathy
2011-01-19 17:42 ` Kevin Hilman
2011-01-18 19:21 ` [PATCH v8 06/11] davinci: add ssp config for tnetv107x evm board Cyril Chemparathy
2011-01-18 19:21 ` [PATCH v8 08/11] davinci: add tnetv107x evm regulators Cyril Chemparathy
2011-01-18 19:21 ` [PATCH v8 10/11] davinci: add tnetv107x evm backlight device Cyril Chemparathy
2011-01-18 19:21 ` [PATCH v8 11/11] davinci: add tnetv107x evm i2c eeprom device Cyril Chemparathy
2011-01-18 19:21 ` Cyril Chemparathy [this message]
2011-01-18 19:21 ` [PATCH v8 09/11] davinci: add tnetv107x evm ti-ssp gpio device Cyril Chemparathy
-- strict thread matches above, loose matches on Subject: below --
2011-01-17 19:15 [PATCH v8 00/11] tnetv107x ssp drivers Cyril Chemparathy
[not found] ` <1295291725-32509-1-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2011-01-17 19:15 ` [PATCH v8 07/11] davinci: add spi devices on tnetv107x evm Cyril Chemparathy
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