* [PATCH] usb: chipidea: removing of_find_property
@ 2015-11-17 11:07 Saurabh Sengar
2015-11-17 11:20 ` Måns Rullgård
0 siblings, 1 reply; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-17 11:07 UTC (permalink / raw)
To: Peter.Chen, gregkh, linux-usb, linux-kernel; +Cc: Saurabh Sengar
call to of_find_property() before of_property_read_u32() is unnecessary.
of_property_read_u32() anyway calls to of_find_property() only.
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
---
drivers/usb/chipidea/core.c | 67 ++++++++++++++++++++++-----------------------
1 file changed, 32 insertions(+), 35 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 965d0e2..8a4c22c 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -643,6 +643,7 @@ static int ci_get_platdata(struct device *dev,
struct extcon_dev *ext_vbus, *ext_id;
struct ci_hdrc_cable *cable;
int ret;
+ u32 pval;
if (!platdata->phy_mode)
platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
@@ -688,52 +689,48 @@ static int ci_get_platdata(struct device *dev,
if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
- if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
- of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
- &platdata->phy_clkgate_delay_us);
+ if (!of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+ &pval))
+ platdata->phy_clkgate_delay_us = pval;
platdata->itc_setting = 1;
- if (of_find_property(dev->of_node, "itc-setting", NULL)) {
- ret = of_property_read_u32(dev->of_node, "itc-setting",
- &platdata->itc_setting);
- if (ret) {
- dev_err(dev,
- "failed to get itc-setting\n");
- return ret;
- }
+
+ ret = of_property_read_u32(dev->of_node, "itc-setting", &pval);
+ if (!ret)
+ platdata->itc_setting = pval;
+ else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get itc-setting\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
- ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
- &platdata->ahb_burst_config);
- if (ret) {
- dev_err(dev,
- "failed to get ahb-burst-config\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+ &pval);
+ if (!ret) {
+ platdata->ahb_burst_config = pval;
platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get ahb-burst-config\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
- &platdata->tx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get tx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+ &pval);
+ if (!ret) {
+ platdata->tx_burst_size = pval;
platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get tx-burst-size-dword\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
- &platdata->rx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get rx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+ &pval);
+ if (!ret) {
+ platdata->rx_burst_size = pval;
platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get rx-burst-size-dword\n");
+ return ret;
}
ext_id = ERR_PTR(-ENODEV);
--
1.9.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH] usb: chipidea: removing of_find_property
2015-11-17 11:07 [PATCH] usb: chipidea: removing of_find_property Saurabh Sengar
@ 2015-11-17 11:20 ` Måns Rullgård
2015-11-17 11:40 ` [PATCH v2] " Saurabh Sengar
0 siblings, 1 reply; 13+ messages in thread
From: Måns Rullgård @ 2015-11-17 11:20 UTC (permalink / raw)
To: Saurabh Sengar; +Cc: Peter.Chen, gregkh, linux-usb, linux-kernel
Saurabh Sengar <saurabh.truth@gmail.com> writes:
> call to of_find_property() before of_property_read_u32() is unnecessary.
> of_property_read_u32() anyway calls to of_find_property() only.
>
> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
> ---
> drivers/usb/chipidea/core.c | 67 ++++++++++++++++++++++-----------------------
> 1 file changed, 32 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 965d0e2..8a4c22c 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -643,6 +643,7 @@ static int ci_get_platdata(struct device *dev,
> struct extcon_dev *ext_vbus, *ext_id;
> struct ci_hdrc_cable *cable;
> int ret;
> + u32 pval;
>
> if (!platdata->phy_mode)
> platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
> @@ -688,52 +689,48 @@ static int ci_get_platdata(struct device *dev,
> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
>
> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> - &platdata->phy_clkgate_delay_us);
> + if (!of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> + &pval))
> + platdata->phy_clkgate_delay_us = pval;
You don't need to use the pval temporary as of_property_read_u32 only
modifies the destination on success.
--
Måns Rullgård
mans@mansr.com
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v2] usb: chipidea: removing of_find_property
2015-11-17 11:20 ` Måns Rullgård
@ 2015-11-17 11:40 ` Saurabh Sengar
2015-11-17 11:44 ` Måns Rullgård
0 siblings, 1 reply; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-17 11:40 UTC (permalink / raw)
To: mans, Peter.Chen, gregkh, linux-usb, linux-kernel; +Cc: Saurabh Sengar
call to of_find_property() before of_property_read_u32() is unnecessary.
of_property_read_u32() anyway calls to of_find_property() only.
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
---
v2: removed pval variable
drivers/usb/chipidea/core.c | 61 +++++++++++++++++++--------------------------
1 file changed, 26 insertions(+), 35 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 965d0e2..916a20d 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -688,52 +688,43 @@ static int ci_get_platdata(struct device *dev,
if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
- if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
- of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
- &platdata->phy_clkgate_delay_us);
+ if (!of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+ &platdata->phy_clkgate_delay_us))
platdata->itc_setting = 1;
- if (of_find_property(dev->of_node, "itc-setting", NULL)) {
- ret = of_property_read_u32(dev->of_node, "itc-setting",
- &platdata->itc_setting);
- if (ret) {
- dev_err(dev,
- "failed to get itc-setting\n");
- return ret;
- }
+
+ ret = of_property_read_u32(dev->of_node, "itc-setting",
+ &platdata->itc_setting);
+ if (ret && ret != -EINVAL) {
+ dev_err(dev, "failed to get itc-setting\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
- ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
- &platdata->ahb_burst_config);
- if (ret) {
- dev_err(dev,
- "failed to get ahb-burst-config\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+ &platdata->ahb_burst_config);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get ahb-burst-config\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
- &platdata->tx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get tx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+ &platdata->tx_burst_size);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get tx-burst-size-dword\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
- &platdata->rx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get rx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+ &platdata->rx_burst_size);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get rx-burst-size-dword\n");
+ return ret;
}
ext_id = ERR_PTR(-ENODEV);
--
1.9.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v2] usb: chipidea: removing of_find_property
2015-11-17 11:40 ` [PATCH v2] " Saurabh Sengar
@ 2015-11-17 11:44 ` Måns Rullgård
2015-11-17 11:52 ` [PATCH v3] " Saurabh Sengar
0 siblings, 1 reply; 13+ messages in thread
From: Måns Rullgård @ 2015-11-17 11:44 UTC (permalink / raw)
To: Saurabh Sengar; +Cc: Peter.Chen, gregkh, linux-usb, linux-kernel
Saurabh Sengar <saurabh.truth@gmail.com> writes:
> call to of_find_property() before of_property_read_u32() is unnecessary.
> of_property_read_u32() anyway calls to of_find_property() only.
>
> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
> ---
> v2: removed pval variable
> drivers/usb/chipidea/core.c | 61 +++++++++++++++++++--------------------------
> 1 file changed, 26 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 965d0e2..916a20d 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -688,52 +688,43 @@ static int ci_get_platdata(struct device *dev,
> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
>
> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> - &platdata->phy_clkgate_delay_us);
> + if (!of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> + &platdata->phy_clkgate_delay_us))
>
> platdata->itc_setting = 1;
Drop that if(). Since we're ignoring of_property_read_u32() failing,
there is no need to test its return value, and code above incorrectly
makes the next statement conditional.
--
Måns Rullgård
mans@mansr.com
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v3] usb: chipidea: removing of_find_property
2015-11-17 11:44 ` Måns Rullgård
@ 2015-11-17 11:52 ` Saurabh Sengar
2015-11-18 3:38 ` Peter Chen
0 siblings, 1 reply; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-17 11:52 UTC (permalink / raw)
To: mans, Peter.Chen, gregkh, linux-usb, linux-kernel; +Cc: Saurabh Sengar
call to of_find_property() before of_property_read_u32() is unnecessary.
of_property_read_u32() anyway calls to of_find_property() only.
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
---
v2 : removed pval variable
v3 : removed unnecessary if condition
drivers/usb/chipidea/core.c | 59 +++++++++++++++++++--------------------------
1 file changed, 25 insertions(+), 34 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 965d0e2..960a925 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -688,52 +688,43 @@ static int ci_get_platdata(struct device *dev,
if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
- if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
- of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+ of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
&platdata->phy_clkgate_delay_us);
platdata->itc_setting = 1;
- if (of_find_property(dev->of_node, "itc-setting", NULL)) {
- ret = of_property_read_u32(dev->of_node, "itc-setting",
- &platdata->itc_setting);
- if (ret) {
- dev_err(dev,
- "failed to get itc-setting\n");
- return ret;
- }
+
+ ret = of_property_read_u32(dev->of_node, "itc-setting",
+ &platdata->itc_setting);
+ if (ret && ret != -EINVAL) {
+ dev_err(dev, "failed to get itc-setting\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
- ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
- &platdata->ahb_burst_config);
- if (ret) {
- dev_err(dev,
- "failed to get ahb-burst-config\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+ &platdata->ahb_burst_config);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get ahb-burst-config\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
- &platdata->tx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get tx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+ &platdata->tx_burst_size);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get tx-burst-size-dword\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
- &platdata->rx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get rx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+ &platdata->rx_burst_size);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get rx-burst-size-dword\n");
+ return ret;
}
ext_id = ERR_PTR(-ENODEV);
--
1.9.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v3] usb: chipidea: removing of_find_property
2015-11-17 11:52 ` [PATCH v3] " Saurabh Sengar
@ 2015-11-18 3:38 ` Peter Chen
2015-11-18 4:00 ` Saurabh Sengar
0 siblings, 1 reply; 13+ messages in thread
From: Peter Chen @ 2015-11-18 3:38 UTC (permalink / raw)
To: Saurabh Sengar; +Cc: mans, gregkh, linux-usb, linux-kernel
On Tue, Nov 17, 2015 at 05:22:26PM +0530, Saurabh Sengar wrote:
> call to of_find_property() before of_property_read_u32() is unnecessary.
> of_property_read_u32() anyway calls to of_find_property() only.
>
> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
> ---
> v2 : removed pval variable
> v3 : removed unnecessary if condition
> drivers/usb/chipidea/core.c | 59 +++++++++++++++++++--------------------------
> 1 file changed, 25 insertions(+), 34 deletions(-)
>
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 965d0e2..960a925 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -688,52 +688,43 @@ static int ci_get_platdata(struct device *dev,
> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
>
> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> + of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> &platdata->phy_clkgate_delay_us);
>
> platdata->itc_setting = 1;
> - if (of_find_property(dev->of_node, "itc-setting", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "itc-setting",
> - &platdata->itc_setting);
> - if (ret) {
> - dev_err(dev,
> - "failed to get itc-setting\n");
> - return ret;
> - }
> +
> + ret = of_property_read_u32(dev->of_node, "itc-setting",
> + &platdata->itc_setting);
> + if (ret && ret != -EINVAL) {
> + dev_err(dev, "failed to get itc-setting\n");
> + return ret;
> }
For this one, you may not need to check return value, since
platdata->itc_setting is optional, and doesn't need to set
any flags if platdata->itc_setting is valid.
Other changes are ok for me.
Peter
>
> - if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> - &platdata->ahb_burst_config);
> - if (ret) {
> - dev_err(dev,
> - "failed to get ahb-burst-config\n");
> - return ret;
> - }
> + ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> + &platdata->ahb_burst_config);
> + if (!ret) {
> platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
> + } else if (ret != -EINVAL) {
> + dev_err(dev, "failed to get ahb-burst-config\n");
> + return ret;
> }
>
> - if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
> - &platdata->tx_burst_size);
> - if (ret) {
> - dev_err(dev,
> - "failed to get tx-burst-size-dword\n");
> - return ret;
> - }
> + ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
> + &platdata->tx_burst_size);
> + if (!ret) {
> platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
> + } else if (ret != -EINVAL) {
> + dev_err(dev, "failed to get tx-burst-size-dword\n");
> + return ret;
> }
>
> - if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
> - &platdata->rx_burst_size);
> - if (ret) {
> - dev_err(dev,
> - "failed to get rx-burst-size-dword\n");
> - return ret;
> - }
> + ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
> + &platdata->rx_burst_size);
> + if (!ret) {
> platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
> + } else if (ret != -EINVAL) {
> + dev_err(dev, "failed to get rx-burst-size-dword\n");
> + return ret;
> }
>
> ext_id = ERR_PTR(-ENODEV);
> --
> 1.9.1
>
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v3] usb: chipidea: removing of_find_property
2015-11-18 3:38 ` Peter Chen
@ 2015-11-18 4:00 ` Saurabh Sengar
2015-11-18 4:10 ` [PATCH v4] " Saurabh Sengar
2015-11-18 4:44 ` [PATCH v3] " Peter Chen
0 siblings, 2 replies; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-18 4:00 UTC (permalink / raw)
To: Peter Chen; +Cc: Måns Rullgård, Greg KH, linux-usb, linux-kernel
Hi Peter,
Yes itc_setting is still optional, in case dts does not pass this
property, return type will be -EINVAL and there would be no problem.
The function will break only if there is 'No data'(-ENODATA) or
'overflow'(-ENODATA) error for this property.
In case this is not OK, I will send a another patch(v4) as you have suggested.
Regards,
Saurabh
On 18 November 2015 at 09:08, Peter Chen <peter.chen@freescale.com> wrote:
> On Tue, Nov 17, 2015 at 05:22:26PM +0530, Saurabh Sengar wrote:
>> call to of_find_property() before of_property_read_u32() is unnecessary.
>> of_property_read_u32() anyway calls to of_find_property() only.
>>
>> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
>> ---
>> v2 : removed pval variable
>> v3 : removed unnecessary if condition
>> drivers/usb/chipidea/core.c | 59 +++++++++++++++++++--------------------------
>> 1 file changed, 25 insertions(+), 34 deletions(-)
>>
>> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
>> index 965d0e2..960a925 100644
>> --- a/drivers/usb/chipidea/core.c
>> +++ b/drivers/usb/chipidea/core.c
>> @@ -688,52 +688,43 @@ static int ci_get_platdata(struct device *dev,
>> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
>> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
>>
>> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
>> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
>> + of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
>> &platdata->phy_clkgate_delay_us);
>>
>> platdata->itc_setting = 1;
>> - if (of_find_property(dev->of_node, "itc-setting", NULL)) {
>> - ret = of_property_read_u32(dev->of_node, "itc-setting",
>> - &platdata->itc_setting);
>> - if (ret) {
>> - dev_err(dev,
>> - "failed to get itc-setting\n");
>> - return ret;
>> - }
>> +
>> + ret = of_property_read_u32(dev->of_node, "itc-setting",
>> + &platdata->itc_setting);
>> + if (ret && ret != -EINVAL) {
>> + dev_err(dev, "failed to get itc-setting\n");
>> + return ret;
>> }
>
> For this one, you may not need to check return value, since
> platdata->itc_setting is optional, and doesn't need to set
> any flags if platdata->itc_setting is valid.
>
> Other changes are ok for me.
>
> Peter
>
>>
>> - if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
>> - ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
>> - &platdata->ahb_burst_config);
>> - if (ret) {
>> - dev_err(dev,
>> - "failed to get ahb-burst-config\n");
>> - return ret;
>> - }
>> + ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
>> + &platdata->ahb_burst_config);
>> + if (!ret) {
>> platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
>> + } else if (ret != -EINVAL) {
>> + dev_err(dev, "failed to get ahb-burst-config\n");
>> + return ret;
>> }
>>
>> - if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
>> - ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
>> - &platdata->tx_burst_size);
>> - if (ret) {
>> - dev_err(dev,
>> - "failed to get tx-burst-size-dword\n");
>> - return ret;
>> - }
>> + ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
>> + &platdata->tx_burst_size);
>> + if (!ret) {
>> platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
>> + } else if (ret != -EINVAL) {
>> + dev_err(dev, "failed to get tx-burst-size-dword\n");
>> + return ret;
>> }
>>
>> - if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
>> - ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
>> - &platdata->rx_burst_size);
>> - if (ret) {
>> - dev_err(dev,
>> - "failed to get rx-burst-size-dword\n");
>> - return ret;
>> - }
>> + ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
>> + &platdata->rx_burst_size);
>> + if (!ret) {
>> platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
>> + } else if (ret != -EINVAL) {
>> + dev_err(dev, "failed to get rx-burst-size-dword\n");
>> + return ret;
>> }
>>
>> ext_id = ERR_PTR(-ENODEV);
>> --
>> 1.9.1
>>
>
> --
>
> Best Regards,
> Peter Chen
^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH v4] usb: chipidea: removing of_find_property
2015-11-18 4:00 ` Saurabh Sengar
@ 2015-11-18 4:10 ` Saurabh Sengar
2015-11-18 6:05 ` Peter Chen
2015-11-18 4:44 ` [PATCH v3] " Peter Chen
1 sibling, 1 reply; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-18 4:10 UTC (permalink / raw)
To: mans, Peter.Chen, gregkh, linux-usb, linux-kernel; +Cc: Saurabh Sengar
call to of_find_property() before of_property_read_u32() is unnecessary.
of_property_read_u32() anyway calls to of_find_property() only.
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
---
v4 : removed return type check for optional property 'itc-setting'
drivers/usb/chipidea/core.c | 57 +++++++++++++++++----------------------------
1 file changed, 22 insertions(+), 35 deletions(-)
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 965d0e2..3d1c3c5 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -688,52 +688,39 @@ static int ci_get_platdata(struct device *dev,
if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
- if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
- of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
+ of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
&platdata->phy_clkgate_delay_us);
platdata->itc_setting = 1;
- if (of_find_property(dev->of_node, "itc-setting", NULL)) {
- ret = of_property_read_u32(dev->of_node, "itc-setting",
- &platdata->itc_setting);
- if (ret) {
- dev_err(dev,
- "failed to get itc-setting\n");
- return ret;
- }
- }
- if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
- ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
- &platdata->ahb_burst_config);
- if (ret) {
- dev_err(dev,
- "failed to get ahb-burst-config\n");
- return ret;
- }
+ of_property_read_u32(dev->of_node, "itc-setting",
+ &platdata->itc_setting);
+
+ ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
+ &platdata->ahb_burst_config);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get ahb-burst-config\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
- &platdata->tx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get tx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
+ &platdata->tx_burst_size);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get tx-burst-size-dword\n");
+ return ret;
}
- if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
- ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
- &platdata->rx_burst_size);
- if (ret) {
- dev_err(dev,
- "failed to get rx-burst-size-dword\n");
- return ret;
- }
+ ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
+ &platdata->rx_burst_size);
+ if (!ret) {
platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
+ } else if (ret != -EINVAL) {
+ dev_err(dev, "failed to get rx-burst-size-dword\n");
+ return ret;
}
ext_id = ERR_PTR(-ENODEV);
--
1.9.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH v3] usb: chipidea: removing of_find_property
2015-11-18 4:00 ` Saurabh Sengar
2015-11-18 4:10 ` [PATCH v4] " Saurabh Sengar
@ 2015-11-18 4:44 ` Peter Chen
1 sibling, 0 replies; 13+ messages in thread
From: Peter Chen @ 2015-11-18 4:44 UTC (permalink / raw)
To: Saurabh Sengar; +Cc: Måns Rullgård, Greg KH, linux-usb, linux-kernel
On Wed, Nov 18, 2015 at 09:30:39AM +0530, Saurabh Sengar wrote:
> Hi Peter,
>
> Yes itc_setting is still optional, in case dts does not pass this
> property, return type will be -EINVAL and there would be no problem.
> The function will break only if there is 'No data'(-ENODATA) or
> 'overflow'(-ENODATA) error for this property.
If there is an error, the variable pass to of_property_read_u32 will
not be changed.
Peter
> In case this is not OK, I will send a another patch(v4) as you have suggested.
>
> Regards,
> Saurabh
>
> On 18 November 2015 at 09:08, Peter Chen <peter.chen@freescale.com> wrote:
> > On Tue, Nov 17, 2015 at 05:22:26PM +0530, Saurabh Sengar wrote:
> >> call to of_find_property() before of_property_read_u32() is unnecessary.
> >> of_property_read_u32() anyway calls to of_find_property() only.
> >>
> >> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
> >> ---
> >> v2 : removed pval variable
> >> v3 : removed unnecessary if condition
> >> drivers/usb/chipidea/core.c | 59 +++++++++++++++++++--------------------------
> >> 1 file changed, 25 insertions(+), 34 deletions(-)
> >>
> >> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> >> index 965d0e2..960a925 100644
> >> --- a/drivers/usb/chipidea/core.c
> >> +++ b/drivers/usb/chipidea/core.c
> >> @@ -688,52 +688,43 @@ static int ci_get_platdata(struct device *dev,
> >> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
> >> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
> >>
> >> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
> >> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> >> + of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> >> &platdata->phy_clkgate_delay_us);
> >>
> >> platdata->itc_setting = 1;
> >> - if (of_find_property(dev->of_node, "itc-setting", NULL)) {
> >> - ret = of_property_read_u32(dev->of_node, "itc-setting",
> >> - &platdata->itc_setting);
> >> - if (ret) {
> >> - dev_err(dev,
> >> - "failed to get itc-setting\n");
> >> - return ret;
> >> - }
> >> +
> >> + ret = of_property_read_u32(dev->of_node, "itc-setting",
> >> + &platdata->itc_setting);
> >> + if (ret && ret != -EINVAL) {
> >> + dev_err(dev, "failed to get itc-setting\n");
> >> + return ret;
> >> }
> >
> > For this one, you may not need to check return value, since
> > platdata->itc_setting is optional, and doesn't need to set
> > any flags if platdata->itc_setting is valid.
> >
> > Other changes are ok for me.
> >
> > Peter
> >
> >>
> >> - if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
> >> - ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> >> - &platdata->ahb_burst_config);
> >> - if (ret) {
> >> - dev_err(dev,
> >> - "failed to get ahb-burst-config\n");
> >> - return ret;
> >> - }
> >> + ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> >> + &platdata->ahb_burst_config);
> >> + if (!ret) {
> >> platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
> >> + } else if (ret != -EINVAL) {
> >> + dev_err(dev, "failed to get ahb-burst-config\n");
> >> + return ret;
> >> }
> >>
> >> - if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
> >> - ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
> >> - &platdata->tx_burst_size);
> >> - if (ret) {
> >> - dev_err(dev,
> >> - "failed to get tx-burst-size-dword\n");
> >> - return ret;
> >> - }
> >> + ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
> >> + &platdata->tx_burst_size);
> >> + if (!ret) {
> >> platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
> >> + } else if (ret != -EINVAL) {
> >> + dev_err(dev, "failed to get tx-burst-size-dword\n");
> >> + return ret;
> >> }
> >>
> >> - if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
> >> - ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
> >> - &platdata->rx_burst_size);
> >> - if (ret) {
> >> - dev_err(dev,
> >> - "failed to get rx-burst-size-dword\n");
> >> - return ret;
> >> - }
> >> + ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
> >> + &platdata->rx_burst_size);
> >> + if (!ret) {
> >> platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
> >> + } else if (ret != -EINVAL) {
> >> + dev_err(dev, "failed to get rx-burst-size-dword\n");
> >> + return ret;
> >> }
> >>
> >> ext_id = ERR_PTR(-ENODEV);
> >> --
> >> 1.9.1
> >>
> >
> > --
> >
> > Best Regards,
> > Peter Chen
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v4] usb: chipidea: removing of_find_property
2015-11-18 4:10 ` [PATCH v4] " Saurabh Sengar
@ 2015-11-18 6:05 ` Peter Chen
2015-11-18 6:18 ` Saurabh Sengar
0 siblings, 1 reply; 13+ messages in thread
From: Peter Chen @ 2015-11-18 6:05 UTC (permalink / raw)
To: Saurabh Sengar; +Cc: mans, gregkh, linux-usb, linux-kernel
On Wed, Nov 18, 2015 at 09:40:12AM +0530, Saurabh Sengar wrote:
> call to of_find_property() before of_property_read_u32() is unnecessary.
> of_property_read_u32() anyway calls to of_find_property() only.
>
> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
> ---
> v4 : removed return type check for optional property 'itc-setting'
>
> drivers/usb/chipidea/core.c | 57 +++++++++++++++++----------------------------
> 1 file changed, 22 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 965d0e2..3d1c3c5 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -688,52 +688,39 @@ static int ci_get_platdata(struct device *dev,
> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
>
> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> + of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> &platdata->phy_clkgate_delay_us);
>
> platdata->itc_setting = 1;
> - if (of_find_property(dev->of_node, "itc-setting", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "itc-setting",
> - &platdata->itc_setting);
> - if (ret) {
> - dev_err(dev,
> - "failed to get itc-setting\n");
> - return ret;
> - }
> - }
>
> - if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> - &platdata->ahb_burst_config);
> - if (ret) {
> - dev_err(dev,
> - "failed to get ahb-burst-config\n");
> - return ret;
> - }
> + of_property_read_u32(dev->of_node, "itc-setting",
> + &platdata->itc_setting);
> +
> + ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> + &platdata->ahb_burst_config);
> + if (!ret) {
> platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
> + } else if (ret != -EINVAL) {
> + dev_err(dev, "failed to get ahb-burst-config\n");
> + return ret;
> }
Sorry, one more comment, why we don't quit if the 'ret' is other error
value?
Peter
>
> - if (of_find_property(dev->of_node, "tx-burst-size-dword", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
> - &platdata->tx_burst_size);
> - if (ret) {
> - dev_err(dev,
> - "failed to get tx-burst-size-dword\n");
> - return ret;
> - }
> + ret = of_property_read_u32(dev->of_node, "tx-burst-size-dword",
> + &platdata->tx_burst_size);
> + if (!ret) {
> platdata->flags |= CI_HDRC_OVERRIDE_TX_BURST;
> + } else if (ret != -EINVAL) {
> + dev_err(dev, "failed to get tx-burst-size-dword\n");
> + return ret;
> }
>
> - if (of_find_property(dev->of_node, "rx-burst-size-dword", NULL)) {
> - ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
> - &platdata->rx_burst_size);
> - if (ret) {
> - dev_err(dev,
> - "failed to get rx-burst-size-dword\n");
> - return ret;
> - }
> + ret = of_property_read_u32(dev->of_node, "rx-burst-size-dword",
> + &platdata->rx_burst_size);
> + if (!ret) {
> platdata->flags |= CI_HDRC_OVERRIDE_RX_BURST;
> + } else if (ret != -EINVAL) {
> + dev_err(dev, "failed to get rx-burst-size-dword\n");
> + return ret;
> }
>
> ext_id = ERR_PTR(-ENODEV);
> --
> 1.9.1
>
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v4] usb: chipidea: removing of_find_property
2015-11-18 6:05 ` Peter Chen
@ 2015-11-18 6:18 ` Saurabh Sengar
2015-11-18 7:24 ` Peter Chen
0 siblings, 1 reply; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-18 6:18 UTC (permalink / raw)
To: Peter Chen; +Cc: Måns Rullgård, Greg KH, linux-usb, linux-kernel
On 18 November 2015 at 11:35, Peter Chen <peter.chen@freescale.com> wrote:
> On Wed, Nov 18, 2015 at 09:40:12AM +0530, Saurabh Sengar wrote:
>> call to of_find_property() before of_property_read_u32() is unnecessary.
>> of_property_read_u32() anyway calls to of_find_property() only.
>>
>> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
>> ---
>> v4 : removed return type check for optional property 'itc-setting'
>>
>> drivers/usb/chipidea/core.c | 57 +++++++++++++++++----------------------------
>> 1 file changed, 22 insertions(+), 35 deletions(-)
>>
>> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
>> index 965d0e2..3d1c3c5 100644
>> --- a/drivers/usb/chipidea/core.c
>> +++ b/drivers/usb/chipidea/core.c
>> @@ -688,52 +688,39 @@ static int ci_get_platdata(struct device *dev,
>> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
>> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
>>
>> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
>> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
>> + of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
>> &platdata->phy_clkgate_delay_us);
>>
>> platdata->itc_setting = 1;
>> - if (of_find_property(dev->of_node, "itc-setting", NULL)) {
>> - ret = of_property_read_u32(dev->of_node, "itc-setting",
>> - &platdata->itc_setting);
>> - if (ret) {
>> - dev_err(dev,
>> - "failed to get itc-setting\n");
>> - return ret;
>> - }
>> - }
>>
>> - if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
>> - ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
>> - &platdata->ahb_burst_config);
>> - if (ret) {
>> - dev_err(dev,
>> - "failed to get ahb-burst-config\n");
>> - return ret;
>> - }
>> + of_property_read_u32(dev->of_node, "itc-setting",
>> + &platdata->itc_setting);
>> +
>> + ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
>> + &platdata->ahb_burst_config);
>> + if (!ret) {
>> platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
>> + } else if (ret != -EINVAL) {
>> + dev_err(dev, "failed to get ahb-burst-config\n");
>> + return ret;
>> }
>Sorry, one more comment, why we don't quit if the 'ret' is other error
>value?
>
> Peter
We quit if error is anything other then -EINVAL.
In case of -EINVAL, it means we are deliberating ignoring that
property thus left it.
Also the previous functionality was like this when we were using
of_find_property().
Please let me know if this need to be changed, that we need to return
in all kind of error, I will fix it and send it in patch v5.
Regards,
Saurabh
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v4] usb: chipidea: removing of_find_property
2015-11-18 6:18 ` Saurabh Sengar
@ 2015-11-18 7:24 ` Peter Chen
2015-11-18 7:41 ` Saurabh Sengar
0 siblings, 1 reply; 13+ messages in thread
From: Peter Chen @ 2015-11-18 7:24 UTC (permalink / raw)
To: Saurabh Sengar; +Cc: Måns Rullgård, Greg KH, linux-usb, linux-kernel
On Wed, Nov 18, 2015 at 11:48:36AM +0530, Saurabh Sengar wrote:
> On 18 November 2015 at 11:35, Peter Chen <peter.chen@freescale.com> wrote:
> > On Wed, Nov 18, 2015 at 09:40:12AM +0530, Saurabh Sengar wrote:
> >> call to of_find_property() before of_property_read_u32() is unnecessary.
> >> of_property_read_u32() anyway calls to of_find_property() only.
> >>
> >> Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
> >> ---
> >> v4 : removed return type check for optional property 'itc-setting'
> >>
> >> drivers/usb/chipidea/core.c | 57 +++++++++++++++++----------------------------
> >> 1 file changed, 22 insertions(+), 35 deletions(-)
> >>
> >> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> >> index 965d0e2..3d1c3c5 100644
> >> --- a/drivers/usb/chipidea/core.c
> >> +++ b/drivers/usb/chipidea/core.c
> >> @@ -688,52 +688,39 @@ static int ci_get_platdata(struct device *dev,
> >> if (usb_get_maximum_speed(dev) == USB_SPEED_FULL)
> >> platdata->flags |= CI_HDRC_FORCE_FULLSPEED;
> >>
> >> - if (of_find_property(dev->of_node, "phy-clkgate-delay-us", NULL))
> >> - of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> >> + of_property_read_u32(dev->of_node, "phy-clkgate-delay-us",
> >> &platdata->phy_clkgate_delay_us);
> >>
> >> platdata->itc_setting = 1;
> >> - if (of_find_property(dev->of_node, "itc-setting", NULL)) {
> >> - ret = of_property_read_u32(dev->of_node, "itc-setting",
> >> - &platdata->itc_setting);
> >> - if (ret) {
> >> - dev_err(dev,
> >> - "failed to get itc-setting\n");
> >> - return ret;
> >> - }
> >> - }
> >>
> >> - if (of_find_property(dev->of_node, "ahb-burst-config", NULL)) {
> >> - ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> >> - &platdata->ahb_burst_config);
> >> - if (ret) {
> >> - dev_err(dev,
> >> - "failed to get ahb-burst-config\n");
> >> - return ret;
> >> - }
> >> + of_property_read_u32(dev->of_node, "itc-setting",
> >> + &platdata->itc_setting);
> >> +
> >> + ret = of_property_read_u32(dev->of_node, "ahb-burst-config",
> >> + &platdata->ahb_burst_config);
> >> + if (!ret) {
> >> platdata->flags |= CI_HDRC_OVERRIDE_AHB_BURST;
> >> + } else if (ret != -EINVAL) {
> >> + dev_err(dev, "failed to get ahb-burst-config\n");
> >> + return ret;
> >> }
>
> >Sorry, one more comment, why we don't quit if the 'ret' is other error
> >value?
> >
> > Peter
>
> We quit if error is anything other then -EINVAL.
> In case of -EINVAL, it means we are deliberating ignoring that
> property thus left it.
> Also the previous functionality was like this when we were using
> of_find_property().
> Please let me know if this need to be changed, that we need to return
> in all kind of error, I will fix it and send it in patch v5.
>
I am clear now, I will queue it.
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH v4] usb: chipidea: removing of_find_property
2015-11-18 7:24 ` Peter Chen
@ 2015-11-18 7:41 ` Saurabh Sengar
0 siblings, 0 replies; 13+ messages in thread
From: Saurabh Sengar @ 2015-11-18 7:41 UTC (permalink / raw)
To: Peter Chen; +Cc: Måns Rullgård, Greg KH, linux-usb, linux-kernel
On 18 November 2015 at 12:54, Peter Chen <peter.chen@freescale.com> wrote:
> I am clear now, I will queue it.
Thank you
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2015-11-18 7:41 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-11-17 11:07 [PATCH] usb: chipidea: removing of_find_property Saurabh Sengar
2015-11-17 11:20 ` Måns Rullgård
2015-11-17 11:40 ` [PATCH v2] " Saurabh Sengar
2015-11-17 11:44 ` Måns Rullgård
2015-11-17 11:52 ` [PATCH v3] " Saurabh Sengar
2015-11-18 3:38 ` Peter Chen
2015-11-18 4:00 ` Saurabh Sengar
2015-11-18 4:10 ` [PATCH v4] " Saurabh Sengar
2015-11-18 6:05 ` Peter Chen
2015-11-18 6:18 ` Saurabh Sengar
2015-11-18 7:24 ` Peter Chen
2015-11-18 7:41 ` Saurabh Sengar
2015-11-18 4:44 ` [PATCH v3] " Peter Chen
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