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openwrt/target/linux/ar71xx/patches-3.2/204-spi-ath79-use-gpio_requ...

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ar71xx: improve SPI flash read/write performance mtd_speedtest results: page write speed old new delta DB120 209 KiB/s 226 KiB/s +8.13% TL-WR1043ND v1 122 KiB/s 148 KiB/s +21.31% TL-WR703N v1 153 KiB/s 194 KiB/s +26.80% TL-MR3220 v1 130 KiB/s 156 KiB/s +20.00% TL-WR2543ND v1 158 KiB/s 202 KiB/s +27.85% TL-WR741ND v2 122 KiB/s 152 KiB/s +24.59% ALFA AP96 229 KiB/s 260 KiB/s +13.54% WNDR3700 202 KiB/s 223 KiB/s +10.40% page read speed old new delta DB120 691 KiB/s 929 KiB/s +34.44% TL-WR1043ND v1 372 KiB/s 754 KiB/s +102.69% TL-WR703N v1 375 KiB/s 745 KiB/s +98.67% TL-MR3220 v1 372 KiB/s 752 KiB/s +102.15% TL-WR2543ND v1 307 KiB/s 564 KiB/s +83.71% TL-WR741ND v2 315 KiB/s 525 KiB/s +66.67% ALFA AP96 515 KiB/s 702 KiB/s +36.31% WNDR3700 515 KiB/s 697 KiB/s +35.34% SVN-Revision: 31117
2012-03-27 19:38:15 +00:00
From dd5b424b0b3f0370f9b63594ad53c16989b6ad78 Mon Sep 17 00:00:00 2001
ar71xx: add initial support for 3.2 Tested on the following boards: ALFA AP96 TL-MR3220 v1 TL-WR1043ND v1 TL-WR2543ND v1 TL-WR703N v1 TL-WR741ND v1 TL-WR741ND v4 WNDR3700 v1 WZR-HP-G300NH SVN-Revision: 29868
2012-01-22 22:38:19 +00:00
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 9 Jan 2012 15:04:21 +0100
Subject: [PATCH 4/7] spi/ath79: use gpio_request_one
Use gpio_request_one() instead of multiple gpiolib calls.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
drivers/spi/spi-ath79.c | 26 +++++++++++++-------------
1 files changed, 13 insertions(+), 13 deletions(-)
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
ar71xx: improve SPI flash read/write performance mtd_speedtest results: page write speed old new delta DB120 209 KiB/s 226 KiB/s +8.13% TL-WR1043ND v1 122 KiB/s 148 KiB/s +21.31% TL-WR703N v1 153 KiB/s 194 KiB/s +26.80% TL-MR3220 v1 130 KiB/s 156 KiB/s +20.00% TL-WR2543ND v1 158 KiB/s 202 KiB/s +27.85% TL-WR741ND v2 122 KiB/s 152 KiB/s +24.59% ALFA AP96 229 KiB/s 260 KiB/s +13.54% WNDR3700 202 KiB/s 223 KiB/s +10.40% page read speed old new delta DB120 691 KiB/s 929 KiB/s +34.44% TL-WR1043ND v1 372 KiB/s 754 KiB/s +102.69% TL-WR703N v1 375 KiB/s 745 KiB/s +98.67% TL-MR3220 v1 372 KiB/s 752 KiB/s +102.15% TL-WR2543ND v1 307 KiB/s 564 KiB/s +83.71% TL-WR741ND v2 315 KiB/s 525 KiB/s +66.67% ALFA AP96 515 KiB/s 702 KiB/s +36.31% WNDR3700 515 KiB/s 697 KiB/s +35.34% SVN-Revision: 31117
2012-03-27 19:38:15 +00:00
@@ -100,6 +100,7 @@ static int ath79_spi_setup_cs(struct spi
ar71xx: add initial support for 3.2 Tested on the following boards: ALFA AP96 TL-MR3220 v1 TL-WR1043ND v1 TL-WR2543ND v1 TL-WR703N v1 TL-WR741ND v1 TL-WR741ND v4 WNDR3700 v1 WZR-HP-G300NH SVN-Revision: 29868
2012-01-22 22:38:19 +00:00
{
struct ath79_spi *sp = ath79_spidev_to_sp(spi);
struct ath79_spi_controller_data *cdata;
+ int status;
cdata = spi->controller_data;
if (spi->chip_select && !cdata)
ar71xx: improve SPI flash read/write performance mtd_speedtest results: page write speed old new delta DB120 209 KiB/s 226 KiB/s +8.13% TL-WR1043ND v1 122 KiB/s 148 KiB/s +21.31% TL-WR703N v1 153 KiB/s 194 KiB/s +26.80% TL-MR3220 v1 130 KiB/s 156 KiB/s +20.00% TL-WR2543ND v1 158 KiB/s 202 KiB/s +27.85% TL-WR741ND v2 122 KiB/s 152 KiB/s +24.59% ALFA AP96 229 KiB/s 260 KiB/s +13.54% WNDR3700 202 KiB/s 223 KiB/s +10.40% page read speed old new delta DB120 691 KiB/s 929 KiB/s +34.44% TL-WR1043ND v1 372 KiB/s 754 KiB/s +102.69% TL-WR703N v1 375 KiB/s 745 KiB/s +98.67% TL-MR3220 v1 372 KiB/s 752 KiB/s +102.15% TL-WR2543ND v1 307 KiB/s 564 KiB/s +83.71% TL-WR741ND v2 315 KiB/s 525 KiB/s +66.67% ALFA AP96 515 KiB/s 702 KiB/s +36.31% WNDR3700 515 KiB/s 697 KiB/s +35.34% SVN-Revision: 31117
2012-03-27 19:38:15 +00:00
@@ -115,22 +116,21 @@ static int ath79_spi_setup_cs(struct spi
ar71xx: add initial support for 3.2 Tested on the following boards: ALFA AP96 TL-MR3220 v1 TL-WR1043ND v1 TL-WR2543ND v1 TL-WR703N v1 TL-WR741ND v1 TL-WR741ND v4 WNDR3700 v1 WZR-HP-G300NH SVN-Revision: 29868
2012-01-22 22:38:19 +00:00
/* TODO: setup speed? */
ath79_spi_wr(sp, AR71XX_SPI_REG_CTRL, 0x43);
+ status = 0;
if (spi->chip_select) {
- int status = 0;
+ unsigned long flags;
- status = gpio_request(cdata->gpio, dev_name(&spi->dev));
- if (status)
- return status;
refresh 3.2 patches SVN-Revision: 29934
2012-01-28 13:19:43 +00:00
-
ar71xx: add initial support for 3.2 Tested on the following boards: ALFA AP96 TL-MR3220 v1 TL-WR1043ND v1 TL-WR2543ND v1 TL-WR703N v1 TL-WR741ND v1 TL-WR741ND v4 WNDR3700 v1 WZR-HP-G300NH SVN-Revision: 29868
2012-01-22 22:38:19 +00:00
- status = gpio_direction_output(cdata->gpio,
- spi->mode & SPI_CS_HIGH);
- if (status) {
- gpio_free(cdata->gpio);
- return status;
- }
refresh 3.2 patches SVN-Revision: 29934
2012-01-28 13:19:43 +00:00
+ flags = GPIOF_DIR_OUT;
+ if (spi->mode & SPI_CS_HIGH)
+ flags |= GPIOF_INIT_HIGH;
+ else
+ flags |= GPIOF_INIT_LOW;
+
ar71xx: add initial support for 3.2 Tested on the following boards: ALFA AP96 TL-MR3220 v1 TL-WR1043ND v1 TL-WR2543ND v1 TL-WR703N v1 TL-WR741ND v1 TL-WR741ND v4 WNDR3700 v1 WZR-HP-G300NH SVN-Revision: 29868
2012-01-22 22:38:19 +00:00
+ status = gpio_request_one(cdata->gpio, flags,
+ dev_name(&spi->dev));
}
- return 0;
+ return status;
}
static void ath79_spi_cleanup_cs(struct spi_device *spi)