From: Cyril Chemparathy <cyril-l0cyMroinI0@public.gmane.org>
To: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org,
spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org,
lrg-kDsPt+C1G03kYMGBc/C6ZA@public.gmane.org,
broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org,
rpurdie@rpsys
Cc: dbrownell-Rn4VEauK+AKRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
khilman-1D3HCaltpLuhEniVeURVKkEOCMrvLtNR@public.gmane.org,
Cyril Chemparathy <cyril-l0cyMroinI0@public.gmane.org>,
akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org
Subject: [PATCH v5 05/12] davinci: add spi devices on tnetv107x evm
Date: Mon, 15 Nov 2010 14:12:07 -0500 [thread overview]
Message-ID: <1289848334-8695-6-git-send-email-cyril@ti.com> (raw)
In-Reply-To: <1289848334-8695-1-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
This patch adds definitions for spi devices on the tnetv107x evm platform.
Signed-off-by: Cyril Chemparathy <cyril-l0cyMroinI0@public.gmane.org>
---
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
--
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next prev parent reply other threads:[~2010-11-15 19:12 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-15 19:12 [PATCH v5 00/12] tnetv107x ssp drivers Cyril Chemparathy
[not found] ` <1289848334-8695-1-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-15 19:12 ` [PATCH v5 01/12] misc: add driver for sequencer serial port Cyril Chemparathy
[not found] ` <1289848334-8695-2-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-16 7:10 ` Grant Likely
[not found] ` <20101116071047.GE4074-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-16 16:15 ` Cyril Chemparathy
[not found] ` <4CE2AE3C.4040805-l0cyMroinI0@public.gmane.org>
2010-11-16 20:35 ` Grant Likely
[not found] ` <AANLkTik76EY8Xh01YP2Tep6k1ETPO+3idmNuk3pVikJG-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-11-16 21:19 ` Cyril Chemparathy
2010-11-16 22:23 ` Russell King - ARM Linux
[not found] ` <20101116222340.GF21926-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2010-11-16 23:57 ` Grant Likely
2010-11-15 19:12 ` [PATCH v5 02/12] davinci: add tnetv107x ssp platform device Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 03/12] davinci: add ssp config for tnetv107x evm board Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 04/12] spi: add ti-ssp spi master driver Cyril Chemparathy
2010-11-15 21:59 ` Ryan Mallon
[not found] ` <1289848334-8695-5-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-16 7:22 ` Grant Likely
[not found] ` <20101116072225.GF4074-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-16 7:47 ` Grant Likely
2010-11-16 11:34 ` Mark Brown
[not found] ` <20101116113409.GH3338-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2010-11-16 20:45 ` Grant Likely
[not found] ` <20101116204554.GB5016-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-16 22:48 ` Mark Brown
[not found] ` <AANLkTi=utWumLKo9QVWXpkC8WxpgaNJJs+dj=pa2eq-q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-11-17 0:17 ` Cyril Chemparathy
2010-11-17 13:31 ` Mark Brown
[not found] ` <20101117133136.GA19488-HF5t3jzXg/6ND3a5+9QAFujbO/Zr0HzV@public.gmane.org>
2010-11-17 15:25 ` David Brownell
[not found] ` <781931.83221.qm-g47maUHHHF+ORdMXk8NaZPu2YVrzzGjVVpNB7YpNyf8@public.gmane.org>
2010-11-17 17:54 ` Cyril Chemparathy
[not found] ` <4CE31F0E.7050103-l0cyMroinI0@public.gmane.org>
2010-11-17 16:11 ` Grant Likely
[not found] ` <20101117161130.GC5757-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-11-17 17:23 ` Mark Brown
2010-11-17 17:35 ` Cyril Chemparathy
2010-11-18 5:46 ` Greg KH
2010-11-25 23:32 ` Rafael J. Wysocki
2010-11-16 14:19 ` David Brownell
2010-11-15 19:12 ` Cyril Chemparathy [this message]
2010-11-15 19:12 ` [PATCH v5 06/12] regulator: add driver for tps6524x regulator Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 07/12] davinci: add tnetv107x evm regulators Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 08/12] gpio: add ti-ssp gpio driver Cyril Chemparathy
[not found] ` <1289848334-8695-9-git-send-email-cyril-l0cyMroinI0@public.gmane.org>
2010-11-15 22:38 ` Ryan Mallon
[not found] ` <4CE1B651.1060006-7Wk5F4Od5/oYd5yxfr4S2w@public.gmane.org>
2010-11-16 19:38 ` Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 09/12] davinci: add tnetv107x evm ti-ssp gpio device Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 10/12] backlight: add support for tps6116x controller Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 11/12] davinci: add tnetv107x evm backlight device Cyril Chemparathy
2010-11-15 19:12 ` [PATCH v5 12/12] davinci: add tnetv107x evm i2c eeprom device Cyril Chemparathy
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