* [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-07-04 14:32 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:32 UTC (permalink / raw)
To: linux-i2c
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
[1/5] i2c: hix5hd2: fix IRQ check
[2/5] i2c: mt65xx: fix IRQ check
[3/5] i2c: pmcmsp: fix IRQ check
[4/5] i2c: s3c2410: fix IRQ check
[5/5] i2c: xlp9xx: fix main IRQ check
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-07-04 14:32 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:32 UTC (permalink / raw)
To: linux-i2c
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
[1/5] i2c: hix5hd2: fix IRQ check
[2/5] i2c: mt65xx: fix IRQ check
[3/5] i2c: pmcmsp: fix IRQ check
[4/5] i2c: s3c2410: fix IRQ check
[5/5] i2c: xlp9xx: fix main IRQ check
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-07-04 14:32 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:32 UTC (permalink / raw)
To: linux-i2c
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
[1/5] i2c: hix5hd2: fix IRQ check
[2/5] i2c: mt65xx: fix IRQ check
[3/5] i2c: pmcmsp: fix IRQ check
[4/5] i2c: s3c2410: fix IRQ check
[5/5] i2c: xlp9xx: fix main IRQ check
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 1/5] i2c: hix5hd2: fix IRQ check
2021-07-04 14:32 ` Sergey Shtylyov
(?)
(?)
@ 2021-07-04 14:35 ` Sergey Shtylyov
2021-08-17 20:10 ` Wolfram Sang
-1 siblings, 1 reply; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:35 UTC (permalink / raw)
To: linux-i2c
Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful). Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...
Fixes: 15ef27756b23 ("i2c: hix5hd2: add i2c controller driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
drivers/i2c/busses/i2c-hix5hd2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-hix5hd2.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-hix5hd2.c
+++ linux/drivers/i2c/busses/i2c-hix5hd2.c
@@ -413,7 +413,7 @@ static int hix5hd2_i2c_probe(struct plat
return PTR_ERR(priv->regs);
irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
+ if (irq < 0)
return irq;
priv->clk = devm_clk_get(&pdev->dev, NULL);
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
2021-07-04 14:32 ` Sergey Shtylyov
(?)
@ 2021-07-04 14:38 ` Sergey Shtylyov
-1 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:38 UTC (permalink / raw)
To: linux-i2c; +Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful). Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...
Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
---
drivers/i2c/busses/i2c-mt65xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-mt65xx.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
+++ linux/drivers/i2c/busses/i2c-mt65xx.c
@@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
return PTR_ERR(i2c->pdmabase);
irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
+ if (irq < 0)
return irq;
init_completion(&i2c->msg_complete);
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-07-04 14:38 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:38 UTC (permalink / raw)
To: linux-i2c; +Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful). Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...
Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
---
drivers/i2c/busses/i2c-mt65xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-mt65xx.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
+++ linux/drivers/i2c/busses/i2c-mt65xx.c
@@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
return PTR_ERR(i2c->pdmabase);
irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
+ if (irq < 0)
return irq;
init_completion(&i2c->msg_complete);
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-07-04 14:38 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:38 UTC (permalink / raw)
To: linux-i2c; +Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful). Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...
Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
---
drivers/i2c/busses/i2c-mt65xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-mt65xx.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
+++ linux/drivers/i2c/busses/i2c-mt65xx.c
@@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
return PTR_ERR(i2c->pdmabase);
irq = platform_get_irq(pdev, 0);
- if (irq <= 0)
+ if (irq < 0)
return irq;
init_completion(&i2c->msg_complete);
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 3/5] i2c: pmcmsp: fix IRQ check
2021-07-04 14:32 ` Sergey Shtylyov
` (3 preceding siblings ...)
(?)
@ 2021-07-04 14:41 ` Sergey Shtylyov
2021-08-17 20:08 ` Wolfram Sang
-1 siblings, 1 reply; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:41 UTC (permalink / raw)
To: linux-i2c
The driver's probe() method is written as if platform_get_irq() returns 0
on error, while actually it returns a negative error code (with all the
other values considered valid IRQs). Rewrite the driver's IRQ checking
code to pass the positive IRQ #s to request_irq() and use polling mode
when platform_get_irq() returns negative error code (or IRQ0)...
Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
Changes in version 2:
- fixed the IRQ validity check, assigning the result of platform_get_irq() call
to the 'rc' variable first;
- merging the code enforcing the polling mode on bad IRQ in one place (after
calling request_irq() and handling its result);
- removed explicit check for the deferred probe, fixed up the patch description
accordingly;
- removed the dashes in the patch subject;
- refreshed the patch.
drivers/i2c/busses/i2c-pmcmsp.c | 8 +++++---
drivers/i2c/busses/i2c-pmcmsp.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
Index: linux/drivers/i2c/busses/i2c-pmcmsp.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-pmcmsp.c
+++ linux/drivers/i2c/busses/i2c-pmcmsp.c
@@ -291,8 +291,9 @@ static int pmcmsptwi_probe(struct platfo
}
/* request the irq */
- pmcmsptwi_data.irq = platform_get_irq(pldev, 0);
- if (pmcmsptwi_data.irq) {
+ rc = platform_get_irq(pldev, 0);
+ pmcmsptwi_data.irq = rc;
+ if (rc > 0) {
rc = request_irq(pmcmsptwi_data.irq, &pmcmsptwi_interrupt,
IRQF_SHARED, pldev->name, &pmcmsptwi_data);
if (rc == 0) {
@@ -312,9 +313,14 @@ static int pmcmsptwi_probe(struct platfo
"Could not assign TWI IRQ handler "
"to irq %d (continuing with poll)\n",
pmcmsptwi_data.irq);
- pmcmsptwi_data.irq = 0;
}
}
+ /*
+ * We only get here with a negative rc if either platform_get_irq() or
+ * request_irq() call has failed; we have to enforce the polling mode...
+ */
+ if (rc < 0)
+ pmcmsptwi_data.irq = 0;
init_completion(&pmcmsptwi_data.wait);
mutex_init(&pmcmsptwi_data.lock);
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 4/5] i2c: s3c2410: fix IRQ check
2021-07-04 14:32 ` Sergey Shtylyov
@ 2021-07-04 14:45 ` Sergey Shtylyov
-1 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:45 UTC (permalink / raw)
To: linux-i2c; +Cc: linux-samsung-soc, Krzysztof Kozlowski, linux-arm-kernel
Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful). Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...
Fixes: 2bbd681ba2b ("i2c-s3c2410: Change IRQ to be plain integer.")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
drivers/i2c/busses/i2c-s3c2410.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-s3c2410.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-s3c2410.c
+++ linux/drivers/i2c/busses/i2c-s3c2410.c
@@ -1137,7 +1137,7 @@ static int s3c24xx_i2c_probe(struct plat
*/
if (!(i2c->quirks & QUIRK_POLL)) {
i2c->irq = ret = platform_get_irq(pdev, 0);
- if (ret <= 0) {
+ if (ret < 0) {
dev_err(&pdev->dev, "cannot find IRQ\n");
clk_unprepare(i2c->clk);
return ret;
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 4/5] i2c: s3c2410: fix IRQ check
@ 2021-07-04 14:45 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:45 UTC (permalink / raw)
To: linux-i2c; +Cc: linux-samsung-soc, Krzysztof Kozlowski, linux-arm-kernel
Iff platform_get_irq() returns 0, the driver's probe() method will return 0
early (as if the method's call was successful). Let's consider IRQ0 valid
for simplicity -- devm_request_irq() can always override that decision...
Fixes: 2bbd681ba2b ("i2c-s3c2410: Change IRQ to be plain integer.")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
drivers/i2c/busses/i2c-s3c2410.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-s3c2410.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-s3c2410.c
+++ linux/drivers/i2c/busses/i2c-s3c2410.c
@@ -1137,7 +1137,7 @@ static int s3c24xx_i2c_probe(struct plat
*/
if (!(i2c->quirks & QUIRK_POLL)) {
i2c->irq = ret = platform_get_irq(pdev, 0);
- if (ret <= 0) {
+ if (ret < 0) {
dev_err(&pdev->dev, "cannot find IRQ\n");
clk_unprepare(i2c->clk);
return ret;
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* [PATCH v2 5/5] i2c: xlp9xx: fix main IRQ check
2021-07-04 14:32 ` Sergey Shtylyov
` (5 preceding siblings ...)
(?)
@ 2021-07-04 14:47 ` Sergey Shtylyov
2021-08-17 20:13 ` Wolfram Sang
2021-08-25 21:05 ` Wolfram Sang
-1 siblings, 2 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-07-04 14:47 UTC (permalink / raw)
To: linux-i2c; +Cc: George Cherian
Iff platform_get_irq() returns 0 for the main IRQ, the driver's probe()
method will return 0 early (as if the method's call was successful).
Let's consider IRQ0 valid for simplicity -- devm_request_irq() can always
override that decision...
Fixes: 2bbd681ba2b ("i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
drivers/i2c/busses/i2c-xlp9xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/drivers/i2c/busses/i2c-xlp9xx.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-xlp9xx.c
+++ linux/drivers/i2c/busses/i2c-xlp9xx.c
@@ -517,7 +517,7 @@ static int xlp9xx_i2c_probe(struct platf
return PTR_ERR(priv->base);
priv->irq = platform_get_irq(pdev, 0);
- if (priv->irq <= 0)
+ if (priv->irq < 0)
return priv->irq;
/* SMBAlert irq */
priv->alert_data.irq = platform_get_irq(pdev, 1);
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 4/5] i2c: s3c2410: fix IRQ check
2021-07-04 14:45 ` Sergey Shtylyov
@ 2021-07-05 7:46 ` Krzysztof Kozlowski
-1 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2021-07-05 7:46 UTC (permalink / raw)
To: Sergey Shtylyov, linux-i2c; +Cc: linux-samsung-soc, linux-arm-kernel
On 04/07/2021 16:45, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: 2bbd681ba2b ("i2c-s3c2410: Change IRQ to be plain integer.")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
> ---
> drivers/i2c/busses/i2c-s3c2410.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 4/5] i2c: s3c2410: fix IRQ check
@ 2021-07-05 7:46 ` Krzysztof Kozlowski
0 siblings, 0 replies; 34+ messages in thread
From: Krzysztof Kozlowski @ 2021-07-05 7:46 UTC (permalink / raw)
To: Sergey Shtylyov, linux-i2c; +Cc: linux-samsung-soc, linux-arm-kernel
On 04/07/2021 16:45, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: 2bbd681ba2b ("i2c-s3c2410: Change IRQ to be plain integer.")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
> ---
> drivers/i2c/busses/i2c-s3c2410.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Best regards,
Krzysztof
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
2021-07-04 14:32 ` Sergey Shtylyov
(?)
@ 2021-08-11 20:12 ` Sergey Shtylyov
-1 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-08-11 20:12 UTC (permalink / raw)
To: linux-i2c, Wolfram Sang
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
On 7/4/21 5:32 PM, Sergey Shtylyov wrote:
> Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
> The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
> IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
>
> [1/5] i2c: hix5hd2: fix IRQ check
> [2/5] i2c: mt65xx: fix IRQ check
> [3/5] i2c: pmcmsp: fix IRQ check
> [4/5] i2c: s3c2410: fix IRQ check
> [5/5] i2c: xlp9xx: fix main IRQ check
Wolfram, hat's up with this series (its status in the patchwork is still "new")?
MBR, Sergey
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-08-11 20:12 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-08-11 20:12 UTC (permalink / raw)
To: linux-i2c, Wolfram Sang
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
On 7/4/21 5:32 PM, Sergey Shtylyov wrote:
> Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
> The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
> IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
>
> [1/5] i2c: hix5hd2: fix IRQ check
> [2/5] i2c: mt65xx: fix IRQ check
> [3/5] i2c: pmcmsp: fix IRQ check
> [4/5] i2c: s3c2410: fix IRQ check
> [5/5] i2c: xlp9xx: fix main IRQ check
Wolfram, hat's up with this series (its status in the patchwork is still "new")?
MBR, Sergey
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-08-11 20:12 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-08-11 20:12 UTC (permalink / raw)
To: linux-i2c, Wolfram Sang
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
On 7/4/21 5:32 PM, Sergey Shtylyov wrote:
> Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
> The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
> IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
>
> [1/5] i2c: hix5hd2: fix IRQ check
> [2/5] i2c: mt65xx: fix IRQ check
> [3/5] i2c: pmcmsp: fix IRQ check
> [4/5] i2c: s3c2410: fix IRQ check
> [5/5] i2c: xlp9xx: fix main IRQ check
Wolfram, hat's up with this series (its status in the patchwork is still "new")?
MBR, Sergey
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
2021-08-11 20:12 ` Sergey Shtylyov
(?)
@ 2021-08-11 20:14 ` Sergey Shtylyov
-1 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-08-11 20:14 UTC (permalink / raw)
To: linux-i2c, Wolfram Sang
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
On 8/11/21 11:12 PM, Sergey Shtylyov wrote:
>> Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
>> The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
>> IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
>>
>> [1/5] i2c: hix5hd2: fix IRQ check
>> [2/5] i2c: mt65xx: fix IRQ check
>> [3/5] i2c: pmcmsp: fix IRQ check
>> [4/5] i2c: s3c2410: fix IRQ check
>> [5/5] i2c: xlp9xx: fix main IRQ check
>
> Wolfram, hat's up with this series (its status in the patchwork is still "new")?
What's, of/c. :-)
MBR, Sergey
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-08-11 20:14 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-08-11 20:14 UTC (permalink / raw)
To: linux-i2c, Wolfram Sang
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
On 8/11/21 11:12 PM, Sergey Shtylyov wrote:
>> Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
>> The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
>> IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
>>
>> [1/5] i2c: hix5hd2: fix IRQ check
>> [2/5] i2c: mt65xx: fix IRQ check
>> [3/5] i2c: pmcmsp: fix IRQ check
>> [4/5] i2c: s3c2410: fix IRQ check
>> [5/5] i2c: xlp9xx: fix main IRQ check
>
> Wolfram, hat's up with this series (its status in the patchwork is still "new")?
What's, of/c. :-)
MBR, Sergey
_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers
@ 2021-08-11 20:14 ` Sergey Shtylyov
0 siblings, 0 replies; 34+ messages in thread
From: Sergey Shtylyov @ 2021-08-11 20:14 UTC (permalink / raw)
To: linux-i2c, Wolfram Sang
Cc: Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek,
linux-samsung-soc, George Cherian
On 8/11/21 11:12 PM, Sergey Shtylyov wrote:
>> Here are 5 patches against the 'i2c/for-current' branch of Wolfram's 'linux.git' repo.
>> The affected drivers call platform_get_irq() but mis-interprete its result -- they consider
>> IRQ0 as error and (sometimes) the real error codes as valid IRQs... :-/
>>
>> [1/5] i2c: hix5hd2: fix IRQ check
>> [2/5] i2c: mt65xx: fix IRQ check
>> [3/5] i2c: pmcmsp: fix IRQ check
>> [4/5] i2c: s3c2410: fix IRQ check
>> [5/5] i2c: xlp9xx: fix main IRQ check
>
> Wolfram, hat's up with this series (its status in the patchwork is still "new")?
What's, of/c. :-)
MBR, Sergey
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 3/5] i2c: pmcmsp: fix IRQ check
2021-07-04 14:41 ` [PATCH v2 3/5] i2c: pmcmsp: " Sergey Shtylyov
@ 2021-08-17 20:08 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:08 UTC (permalink / raw)
To: Sergey Shtylyov; +Cc: linux-i2c
[-- Attachment #1: Type: text/plain, Size: 600 bytes --]
On Sun, Jul 04, 2021 at 05:41:50PM +0300, Sergey Shtylyov wrote:
> The driver's probe() method is written as if platform_get_irq() returns 0
> on error, while actually it returns a negative error code (with all the
> other values considered valid IRQs). Rewrite the driver's IRQ checking
> code to pass the positive IRQ #s to request_irq() and use polling mode
> when platform_get_irq() returns negative error code (or IRQ0)...
>
> Fixes: 1b144df1d7d6 ("i2c: New PMC MSP71xx TWI bus driver")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
The driver has been removed meanwhile.
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 4/5] i2c: s3c2410: fix IRQ check
2021-07-04 14:45 ` Sergey Shtylyov
@ 2021-08-17 20:08 ` Wolfram Sang
-1 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:08 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, linux-samsung-soc, Krzysztof Kozlowski, linux-arm-kernel
[-- Attachment #1: Type: text/plain, Size: 467 bytes --]
On Sun, Jul 04, 2021 at 05:45:25PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: 2bbd681ba2b ("i2c-s3c2410: Change IRQ to be plain integer.")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
Applied to for-next, thanks!
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 4/5] i2c: s3c2410: fix IRQ check
@ 2021-08-17 20:08 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:08 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, linux-samsung-soc, Krzysztof Kozlowski, linux-arm-kernel
[-- Attachment #1.1: Type: text/plain, Size: 467 bytes --]
On Sun, Jul 04, 2021 at 05:45:25PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: 2bbd681ba2b ("i2c-s3c2410: Change IRQ to be plain integer.")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
Applied to for-next, thanks!
[-- Attachment #1.2: signature.asc --]
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
2021-07-04 14:38 ` Sergey Shtylyov
(?)
@ 2021-08-17 20:09 ` Wolfram Sang
-1 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:09 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
[-- Attachment #1: Type: text/plain, Size: 1057 bytes --]
On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Qii Wang, do you like this patch?
>
> ---
> drivers/i2c/busses/i2c-mt65xx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux/drivers/i2c/busses/i2c-mt65xx.c
> ===================================================================
> --- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
> +++ linux/drivers/i2c/busses/i2c-mt65xx.c
> @@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
> return PTR_ERR(i2c->pdmabase);
>
> irq = platform_get_irq(pdev, 0);
> - if (irq <= 0)
> + if (irq < 0)
> return irq;
>
> init_completion(&i2c->msg_complete);
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-08-17 20:09 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:09 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
[-- Attachment #1.1: Type: text/plain, Size: 1057 bytes --]
On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Qii Wang, do you like this patch?
>
> ---
> drivers/i2c/busses/i2c-mt65xx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux/drivers/i2c/busses/i2c-mt65xx.c
> ===================================================================
> --- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
> +++ linux/drivers/i2c/busses/i2c-mt65xx.c
> @@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
> return PTR_ERR(i2c->pdmabase);
>
> irq = platform_get_irq(pdev, 0);
> - if (irq <= 0)
> + if (irq < 0)
> return irq;
>
> init_completion(&i2c->msg_complete);
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_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-08-17 20:09 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:09 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
[-- Attachment #1.1: Type: text/plain, Size: 1057 bytes --]
On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Qii Wang, do you like this patch?
>
> ---
> drivers/i2c/busses/i2c-mt65xx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux/drivers/i2c/busses/i2c-mt65xx.c
> ===================================================================
> --- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
> +++ linux/drivers/i2c/busses/i2c-mt65xx.c
> @@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
> return PTR_ERR(i2c->pdmabase);
>
> irq = platform_get_irq(pdev, 0);
> - if (irq <= 0)
> + if (irq < 0)
> return irq;
>
> init_completion(&i2c->msg_complete);
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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 1/5] i2c: hix5hd2: fix IRQ check
2021-07-04 14:35 ` [PATCH v2 1/5] i2c: hix5hd2: fix IRQ check Sergey Shtylyov
@ 2021-08-17 20:10 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:10 UTC (permalink / raw)
To: Sergey Shtylyov; +Cc: linux-i2c
[-- Attachment #1: Type: text/plain, Size: 463 bytes --]
On Sun, Jul 04, 2021 at 05:35:54PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: 15ef27756b23 ("i2c: hix5hd2: add i2c controller driver")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
Applied to for-next, thanks!
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 5/5] i2c: xlp9xx: fix main IRQ check
2021-07-04 14:47 ` [PATCH v2 5/5] i2c: xlp9xx: fix main " Sergey Shtylyov
@ 2021-08-17 20:13 ` Wolfram Sang
2021-08-25 21:05 ` Wolfram Sang
1 sibling, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-17 20:13 UTC (permalink / raw)
To: Sergey Shtylyov; +Cc: linux-i2c, George Cherian
[-- Attachment #1: Type: text/plain, Size: 1123 bytes --]
On Sun, Jul 04, 2021 at 05:47:54PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0 for the main IRQ, the driver's probe()
> method will return 0 early (as if the method's call was successful).
> Let's consider IRQ0 valid for simplicity -- devm_request_irq() can always
> override that decision...
>
> Fixes: 2bbd681ba2b ("i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
George, do you like this patch?
> ---
> drivers/i2c/busses/i2c-xlp9xx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux/drivers/i2c/busses/i2c-xlp9xx.c
> ===================================================================
> --- linux.orig/drivers/i2c/busses/i2c-xlp9xx.c
> +++ linux/drivers/i2c/busses/i2c-xlp9xx.c
> @@ -517,7 +517,7 @@ static int xlp9xx_i2c_probe(struct platf
> return PTR_ERR(priv->base);
>
> priv->irq = platform_get_irq(pdev, 0);
> - if (priv->irq <= 0)
> + if (priv->irq < 0)
> return priv->irq;
> /* SMBAlert irq */
> priv->alert_data.irq = platform_get_irq(pdev, 1);
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
2021-08-17 20:09 ` Wolfram Sang
(?)
@ 2021-08-20 1:46 ` Qii Wang
-1 siblings, 0 replies; 34+ messages in thread
From: Qii Wang @ 2021-08-20 1:46 UTC (permalink / raw)
To: Wolfram Sang
Cc: Sergey Shtylyov, linux-i2c, Matthias Brugger, linux-arm-kernel,
linux-mediatek
On Tue, 2021-08-17 at 22:09 +0200, Wolfram Sang wrote:
> On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> > Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> > early (as if the method's call was successful). Let's consider IRQ0 valid
> > for simplicity -- devm_request_irq() can always override that decision...
> >
> > Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> > Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
>
> Qii Wang, do you like this patch?
>
It is ok.
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Thanks
> >
> > ---
> > drivers/i2c/busses/i2c-mt65xx.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > Index: linux/drivers/i2c/busses/i2c-mt65xx.c
> > ===================================================================
> > --- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
> > +++ linux/drivers/i2c/busses/i2c-mt65xx.c
> > @@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
> > return PTR_ERR(i2c->pdmabase);
> >
> > irq = platform_get_irq(pdev, 0);
> > - if (irq <= 0)
> > + if (irq < 0)
> > return irq;
> >
> > init_completion(&i2c->msg_complete);
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-08-20 1:46 ` Qii Wang
0 siblings, 0 replies; 34+ messages in thread
From: Qii Wang @ 2021-08-20 1:46 UTC (permalink / raw)
To: Wolfram Sang
Cc: Sergey Shtylyov, linux-i2c, Matthias Brugger, linux-arm-kernel,
linux-mediatek
On Tue, 2021-08-17 at 22:09 +0200, Wolfram Sang wrote:
> On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> > Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> > early (as if the method's call was successful). Let's consider IRQ0 valid
> > for simplicity -- devm_request_irq() can always override that decision...
> >
> > Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> > Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
>
> Qii Wang, do you like this patch?
>
It is ok.
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Thanks
> >
> > ---
> > drivers/i2c/busses/i2c-mt65xx.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > Index: linux/drivers/i2c/busses/i2c-mt65xx.c
> > ===================================================================
> > --- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
> > +++ linux/drivers/i2c/busses/i2c-mt65xx.c
> > @@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
> > return PTR_ERR(i2c->pdmabase);
> >
> > irq = platform_get_irq(pdev, 0);
> > - if (irq <= 0)
> > + if (irq < 0)
> > return irq;
> >
> > init_completion(&i2c->msg_complete);
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-08-20 1:46 ` Qii Wang
0 siblings, 0 replies; 34+ messages in thread
From: Qii Wang @ 2021-08-20 1:46 UTC (permalink / raw)
To: Wolfram Sang
Cc: Sergey Shtylyov, linux-i2c, Matthias Brugger, linux-arm-kernel,
linux-mediatek
On Tue, 2021-08-17 at 22:09 +0200, Wolfram Sang wrote:
> On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> > Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> > early (as if the method's call was successful). Let's consider IRQ0 valid
> > for simplicity -- devm_request_irq() can always override that decision...
> >
> > Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> > Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
>
> Qii Wang, do you like this patch?
>
It is ok.
Reviewed-by: Qii Wang <qii.wang@mediatek.com>
Thanks
> >
> > ---
> > drivers/i2c/busses/i2c-mt65xx.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > Index: linux/drivers/i2c/busses/i2c-mt65xx.c
> > ===================================================================
> > --- linux.orig/drivers/i2c/busses/i2c-mt65xx.c
> > +++ linux/drivers/i2c/busses/i2c-mt65xx.c
> > @@ -1211,7 +1211,7 @@ static int mtk_i2c_probe(struct platform
> > return PTR_ERR(i2c->pdmabase);
> >
> > irq = platform_get_irq(pdev, 0);
> > - if (irq <= 0)
> > + if (irq < 0)
> > return irq;
> >
> > init_completion(&i2c->msg_complete);
_______________________________________________
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
2021-07-04 14:38 ` Sergey Shtylyov
(?)
@ 2021-08-25 21:00 ` Wolfram Sang
-1 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-25 21:00 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
[-- Attachment #1: Type: text/plain, Size: 483 bytes --]
On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
>
Applied to for-next, thanks!
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-08-25 21:00 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-25 21:00 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
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On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
>
Applied to for-next, thanks!
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^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 2/5] i2c: mt65xx: fix IRQ check
@ 2021-08-25 21:00 ` Wolfram Sang
0 siblings, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-25 21:00 UTC (permalink / raw)
To: Sergey Shtylyov
Cc: linux-i2c, Qii Wang, Matthias Brugger, linux-arm-kernel, linux-mediatek
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On Sun, Jul 04, 2021 at 05:38:45PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0, the driver's probe() method will return 0
> early (as if the method's call was successful). Let's consider IRQ0 valid
> for simplicity -- devm_request_irq() can always override that decision...
>
> Fixes: ce38815d39ea ("I2C: mediatek: Add driver for MediaTek I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
>
Applied to for-next, thanks!
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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 34+ messages in thread
* Re: [PATCH v2 5/5] i2c: xlp9xx: fix main IRQ check
2021-07-04 14:47 ` [PATCH v2 5/5] i2c: xlp9xx: fix main " Sergey Shtylyov
2021-08-17 20:13 ` Wolfram Sang
@ 2021-08-25 21:05 ` Wolfram Sang
1 sibling, 0 replies; 34+ messages in thread
From: Wolfram Sang @ 2021-08-25 21:05 UTC (permalink / raw)
To: Sergey Shtylyov; +Cc: linux-i2c, George Cherian
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On Sun, Jul 04, 2021 at 05:47:54PM +0300, Sergey Shtylyov wrote:
> Iff platform_get_irq() returns 0 for the main IRQ, the driver's probe()
> method will return 0 early (as if the method's call was successful).
> Let's consider IRQ0 valid for simplicity -- devm_request_irq() can always
> override that decision...
>
> Fixes: 2bbd681ba2b ("i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller")
> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
Applied to for-next, thanks!
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^ permalink raw reply [flat|nested] 34+ messages in thread
end of thread, other threads:[~2021-08-25 21:05 UTC | newest]
Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-04 14:32 [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers Sergey Shtylyov
2021-07-04 14:32 ` Sergey Shtylyov
2021-07-04 14:32 ` Sergey Shtylyov
2021-07-04 14:35 ` [PATCH v2 1/5] i2c: hix5hd2: fix IRQ check Sergey Shtylyov
2021-08-17 20:10 ` Wolfram Sang
2021-07-04 14:38 ` [PATCH v2 2/5] i2c: mt65xx: " Sergey Shtylyov
2021-07-04 14:38 ` Sergey Shtylyov
2021-07-04 14:38 ` Sergey Shtylyov
2021-08-17 20:09 ` Wolfram Sang
2021-08-17 20:09 ` Wolfram Sang
2021-08-17 20:09 ` Wolfram Sang
2021-08-20 1:46 ` Qii Wang
2021-08-20 1:46 ` Qii Wang
2021-08-20 1:46 ` Qii Wang
2021-08-25 21:00 ` Wolfram Sang
2021-08-25 21:00 ` Wolfram Sang
2021-08-25 21:00 ` Wolfram Sang
2021-07-04 14:41 ` [PATCH v2 3/5] i2c: pmcmsp: " Sergey Shtylyov
2021-08-17 20:08 ` Wolfram Sang
2021-07-04 14:45 ` [PATCH v2 4/5] i2c: s3c2410: " Sergey Shtylyov
2021-07-04 14:45 ` Sergey Shtylyov
2021-07-05 7:46 ` Krzysztof Kozlowski
2021-07-05 7:46 ` Krzysztof Kozlowski
2021-08-17 20:08 ` Wolfram Sang
2021-08-17 20:08 ` Wolfram Sang
2021-07-04 14:47 ` [PATCH v2 5/5] i2c: xlp9xx: fix main " Sergey Shtylyov
2021-08-17 20:13 ` Wolfram Sang
2021-08-25 21:05 ` Wolfram Sang
2021-08-11 20:12 ` [PATCH v2 0/5] Correctly handle plaform_get_irq()'s result in the i2C drivers Sergey Shtylyov
2021-08-11 20:12 ` Sergey Shtylyov
2021-08-11 20:12 ` Sergey Shtylyov
2021-08-11 20:14 ` Sergey Shtylyov
2021-08-11 20:14 ` Sergey Shtylyov
2021-08-11 20:14 ` Sergey Shtylyov
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