* [U-Boot] [PATCH V4 1/4] dm: spi: soft_spi bug fix
@ 2016-05-03 1:59 Peng Fan
2016-05-07 19:03 ` Simon Glass
0 siblings, 1 reply; 3+ messages in thread
From: Peng Fan @ 2016-05-03 1:59 UTC (permalink / raw)
To: u-boot
When doing xfer, should use device->parent, but not device
When doing bit xfer, should use "!!(tmpdout & 0x80)", but not
"(tmpdout & 0x80)"
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
V4:
None
V3:
None
V2:
Follow Simon's comments, split bug fix into seperate patch.
drivers/spi/soft_spi.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/spi/soft_spi.c b/drivers/spi/soft_spi.c
index aa4abcc..8cdb520 100644
--- a/drivers/spi/soft_spi.c
+++ b/drivers/spi/soft_spi.c
@@ -34,7 +34,8 @@ struct soft_spi_priv {
static int soft_spi_scl(struct udevice *dev, int bit)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->sclk, bit);
@@ -43,7 +44,8 @@ static int soft_spi_scl(struct udevice *dev, int bit)
static int soft_spi_sda(struct udevice *dev, int bit)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->mosi, bit);
@@ -52,7 +54,8 @@ static int soft_spi_sda(struct udevice *dev, int bit)
static int soft_spi_cs_activate(struct udevice *dev)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->cs, 0);
dm_gpio_set_value(&plat->sclk, 0);
@@ -63,7 +66,8 @@ static int soft_spi_cs_activate(struct udevice *dev)
static int soft_spi_cs_deactivate(struct udevice *dev)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->cs, 0);
@@ -100,8 +104,9 @@ static int soft_spi_release_bus(struct udevice *dev)
static int soft_spi_xfer(struct udevice *dev, unsigned int bitlen,
const void *dout, void *din, unsigned long flags)
{
- struct soft_spi_priv *priv = dev_get_priv(dev);
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_priv *priv = dev_get_priv(bus);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
uchar tmpdin = 0;
uchar tmpdout = 0;
const u8 *txd = dout;
@@ -134,7 +139,7 @@ static int soft_spi_xfer(struct udevice *dev, unsigned int bitlen,
if (!cpha)
soft_spi_scl(dev, 0);
- soft_spi_sda(dev, tmpdout & 0x80);
+ soft_spi_sda(dev, !!(tmpdout & 0x80));
udelay(plat->spi_delay_us);
if (cpha)
soft_spi_scl(dev, 0);
--
2.6.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [U-Boot] [PATCH V4 1/4] dm: spi: soft_spi bug fix
2016-05-03 1:59 [U-Boot] [PATCH V4 1/4] dm: spi: soft_spi bug fix Peng Fan
@ 2016-05-07 19:03 ` Simon Glass
0 siblings, 0 replies; 3+ messages in thread
From: Simon Glass @ 2016-05-07 19:03 UTC (permalink / raw)
To: u-boot
On 2 May 2016 at 19:59, Peng Fan <van.freenix@gmail.com> wrote:
> When doing xfer, should use device->parent, but not device
> When doing bit xfer, should use "!!(tmpdout & 0x80)", but not
> "(tmpdout & 0x80)"
>
> Signed-off-by: Peng Fan <van.freenix@gmail.com>
> Cc: Simon Glass <sjg@chromium.org>
> Cc: Jagan Teki <jteki@openedev.com>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> ---
>
> V4:
> None
>
> V3:
> None
>
> V2:
> Follow Simon's comments, split bug fix into seperate patch.
>
> drivers/spi/soft_spi.c | 19 ++++++++++++-------
> 1 file changed, 12 insertions(+), 7 deletions(-)
Applied to u-boot-dm, thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
* [U-Boot] [PATCH V4 1/4] dm: spi: soft_spi bug fix
@ 2016-05-03 2:02 Peng Fan
0 siblings, 0 replies; 3+ messages in thread
From: Peng Fan @ 2016-05-03 2:02 UTC (permalink / raw)
To: u-boot
When doing xfer, should use device->parent, but not device
When doing bit xfer, should use "!!(tmpdout & 0x80)", but not
"(tmpdout & 0x80)"
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
V4:
None
V3:
None
V2:
Follow Simon's comments, split bug fix into seperate patch.
drivers/spi/soft_spi.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/spi/soft_spi.c b/drivers/spi/soft_spi.c
index aa4abcc..8cdb520 100644
--- a/drivers/spi/soft_spi.c
+++ b/drivers/spi/soft_spi.c
@@ -34,7 +34,8 @@ struct soft_spi_priv {
static int soft_spi_scl(struct udevice *dev, int bit)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->sclk, bit);
@@ -43,7 +44,8 @@ static int soft_spi_scl(struct udevice *dev, int bit)
static int soft_spi_sda(struct udevice *dev, int bit)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->mosi, bit);
@@ -52,7 +54,8 @@ static int soft_spi_sda(struct udevice *dev, int bit)
static int soft_spi_cs_activate(struct udevice *dev)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->cs, 0);
dm_gpio_set_value(&plat->sclk, 0);
@@ -63,7 +66,8 @@ static int soft_spi_cs_activate(struct udevice *dev)
static int soft_spi_cs_deactivate(struct udevice *dev)
{
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
dm_gpio_set_value(&plat->cs, 0);
@@ -100,8 +104,9 @@ static int soft_spi_release_bus(struct udevice *dev)
static int soft_spi_xfer(struct udevice *dev, unsigned int bitlen,
const void *dout, void *din, unsigned long flags)
{
- struct soft_spi_priv *priv = dev_get_priv(dev);
- struct soft_spi_platdata *plat = dev->platdata;
+ struct udevice *bus = dev_get_parent(dev);
+ struct soft_spi_priv *priv = dev_get_priv(bus);
+ struct soft_spi_platdata *plat = dev_get_platdata(bus);
uchar tmpdin = 0;
uchar tmpdout = 0;
const u8 *txd = dout;
@@ -134,7 +139,7 @@ static int soft_spi_xfer(struct udevice *dev, unsigned int bitlen,
if (!cpha)
soft_spi_scl(dev, 0);
- soft_spi_sda(dev, tmpdout & 0x80);
+ soft_spi_sda(dev, !!(tmpdout & 0x80));
udelay(plat->spi_delay_us);
if (cpha)
soft_spi_scl(dev, 0);
--
2.6.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-05-07 19:03 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2016-05-03 1:59 [U-Boot] [PATCH V4 1/4] dm: spi: soft_spi bug fix Peng Fan
2016-05-07 19:03 ` Simon Glass
2016-05-03 2:02 Peng Fan
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