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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
-- 
1.7.1


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  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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