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ar71xx: use gpio_set_value_cansleep on sleeping GPIOs in ath79_spi

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SVN-Revision: 32736
This commit is contained in:
Gabor Juhos 2012-07-15 17:52:48 +00:00
parent 4f66299903
commit c7fa38484c
2 changed files with 15 additions and 12 deletions
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17
target/linux/ar71xx/patches-3.3/206-spi-ath79-make-chipselect-logic-more-flexible.patch
View file

@ -178,7 +178,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
if (is_active) { if (is_active) {
/* set initial clock polarity */ /* set initial clock polarity */
@@ -80,20 +83,21 @@ static void ath79_spi_chipselect(struct @@ -80,20 +83,24 @@ static void ath79_spi_chipselect(struct
ath79_spi_wr(sp, AR71XX_SPI_REG_IOC, sp->ioc_base); ath79_spi_wr(sp, AR71XX_SPI_REG_IOC, sp->ioc_base);
} }
@ -203,13 +203,16 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+ case ATH79_SPI_CS_TYPE_GPIO: + case ATH79_SPI_CS_TYPE_GPIO:
+ /* SPI is normally active-low */ + /* SPI is normally active-low */
+ gpio_set_value(cdata->cs_line, cs_high); + if (gpio_cansleep(cdata->cs_line))
+ gpio_set_value_cansleep(cdata->cs_line, cs_high);
+ else
+ gpio_set_value(cdata->cs_line, cs_high);
+ break; + break;
+ } + }
} }
static void ath79_spi_enable(struct ath79_spi *sp) static void ath79_spi_enable(struct ath79_spi *sp)
@@ -120,24 +124,30 @@ static void ath79_spi_disable(struct ath @@ -120,24 +127,30 @@ static void ath79_spi_disable(struct ath
static int ath79_spi_setup_cs(struct spi_device *spi) static int ath79_spi_setup_cs(struct spi_device *spi)
{ {
struct ath79_spi_controller_data *cdata; struct ath79_spi_controller_data *cdata;
@ -244,7 +247,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
} }
return status; return status;
@@ -145,9 +155,19 @@ static int ath79_spi_setup_cs(struct spi @@ -145,9 +158,19 @@ static int ath79_spi_setup_cs(struct spi
static void ath79_spi_cleanup_cs(struct spi_device *spi) static void ath79_spi_cleanup_cs(struct spi_device *spi)
{ {
@ -267,7 +270,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
} }
} }
@@ -155,6 +175,9 @@ static int ath79_spi_setup(struct spi_de @@ -155,6 +178,9 @@ static int ath79_spi_setup(struct spi_de
{ {
int status = 0; int status = 0;
@ -277,7 +280,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
if (spi->bits_per_word > 32) if (spi->bits_per_word > 32)
return -EINVAL; return -EINVAL;
@@ -215,6 +238,10 @@ static __devinit int ath79_spi_probe(str @@ -215,6 +241,10 @@ static __devinit int ath79_spi_probe(str
unsigned long rate; unsigned long rate;
int ret; int ret;
@ -288,7 +291,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
master = spi_alloc_master(&pdev->dev, sizeof(*sp)); master = spi_alloc_master(&pdev->dev, sizeof(*sp));
if (master == NULL) { if (master == NULL) {
dev_err(&pdev->dev, "failed to allocate spi master\n"); dev_err(&pdev->dev, "failed to allocate spi master\n");
@@ -224,17 +251,10 @@ static __devinit int ath79_spi_probe(str @@ -224,17 +254,10 @@ static __devinit int ath79_spi_probe(str
sp = spi_master_get_devdata(master); sp = spi_master_get_devdata(master);
platform_set_drvdata(pdev, sp); platform_set_drvdata(pdev, sp);

10
target/linux/ar71xx/patches-3.3/463-spi-ath79-add-fast-flash-read.patch
View file

@ -24,7 +24,7 @@
}; };
static inline u32 ath79_spi_rr(struct ath79_spi *sp, unsigned reg) static inline u32 ath79_spi_rr(struct ath79_spi *sp, unsigned reg)
@@ -108,9 +118,6 @@ static void ath79_spi_enable(struct ath7 @@ -111,9 +121,6 @@ static void ath79_spi_enable(struct ath7
/* save CTRL register */ /* save CTRL register */
sp->reg_ctrl = ath79_spi_rr(sp, AR71XX_SPI_REG_CTRL); sp->reg_ctrl = ath79_spi_rr(sp, AR71XX_SPI_REG_CTRL);
sp->ioc_base = ath79_spi_rr(sp, AR71XX_SPI_REG_IOC); sp->ioc_base = ath79_spi_rr(sp, AR71XX_SPI_REG_IOC);
@ -34,7 +34,7 @@
} }
static void ath79_spi_disable(struct ath79_spi *sp) static void ath79_spi_disable(struct ath79_spi *sp)
@@ -229,6 +236,110 @@ static u32 ath79_spi_txrx_mode0(struct s @@ -232,6 +239,110 @@ static u32 ath79_spi_txrx_mode0(struct s
return ath79_spi_rr(sp, AR71XX_SPI_REG_RDS); return ath79_spi_rr(sp, AR71XX_SPI_REG_RDS);
} }
@ -145,7 +145,7 @@
static __devinit int ath79_spi_probe(struct platform_device *pdev) static __devinit int ath79_spi_probe(struct platform_device *pdev)
{ {
struct spi_master *master; struct spi_master *master;
@@ -251,6 +362,8 @@ static __devinit int ath79_spi_probe(str @@ -254,6 +365,8 @@ static __devinit int ath79_spi_probe(str
sp = spi_master_get_devdata(master); sp = spi_master_get_devdata(master);
platform_set_drvdata(pdev, sp); platform_set_drvdata(pdev, sp);
@ -154,7 +154,7 @@
master->setup = ath79_spi_setup; master->setup = ath79_spi_setup;
master->cleanup = ath79_spi_cleanup; master->cleanup = ath79_spi_cleanup;
master->bus_num = pdata->bus_num; master->bus_num = pdata->bus_num;
@@ -259,7 +372,7 @@ static __devinit int ath79_spi_probe(str @@ -262,7 +375,7 @@ static __devinit int ath79_spi_probe(str
sp->bitbang.master = spi_master_get(master); sp->bitbang.master = spi_master_get(master);
sp->bitbang.chipselect = ath79_spi_chipselect; sp->bitbang.chipselect = ath79_spi_chipselect;
sp->bitbang.txrx_word[SPI_MODE_0] = ath79_spi_txrx_mode0; sp->bitbang.txrx_word[SPI_MODE_0] = ath79_spi_txrx_mode0;
@ -163,7 +163,7 @@
sp->bitbang.flags = SPI_CS_HIGH; sp->bitbang.flags = SPI_CS_HIGH;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0); r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -284,7 +397,8 @@ static __devinit int ath79_spi_probe(str @@ -287,7 +400,8 @@ static __devinit int ath79_spi_probe(str
if (ret) if (ret)
goto err_clk_put; goto err_clk_put;