* [PATCH] gpio Add my driver new id
@ 2021-12-03 9:26 Richard Hsu
2021-12-03 10:15 ` Bartosz Golaszewski
0 siblings, 1 reply; 4+ messages in thread
From: Richard Hsu @ 2021-12-03 9:26 UTC (permalink / raw)
To: linus.walleij, brgl, Richard_Hsu
Cc: linux-gpio, linux-kernel, Yd_Tseng, Cindy1_Hsu, Andrew_Su
drivers/gpio/gpio-amdpt.c | 12 ++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-amdpt.c b/drivers/gpio/gpio-amdpt.c
index bbf53e289141..4d01d4341a67 100644
--- a/drivers/gpio/gpio-amdpt.c
+++ b/drivers/gpio/gpio-amdpt.c
@@ -14,6 +14,7 @@
#include <linux/platform_device.h>
#define PT_TOTAL_GPIO 8
+#define PT_TOTAL_GPIO_EX 24
/* PCI-E MMIO register offsets */
#define PT_DIRECTION_REG 0x00
@@ -72,10 +73,12 @@ static void pt_gpio_free(struct gpio_chip *gc, unsigned offset)
static int pt_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
+ struct acpi_device *acpi_dev;
+ acpi_handle handle = ACPI_HANDLE(dev);
struct pt_gpio_chip *pt_gpio;
int ret = 0;
- if (!ACPI_COMPANION(dev)) {
+ if (acpi_bus_get_device(handle, &acpi_dev)) {
dev_err(dev, "PT GPIO device node not found\n");
return -ENODEV;
}
@@ -100,10 +103,14 @@ static int pt_gpio_probe(struct platform_device *pdev)
return ret;
}
+ if (!strncmp(acpi_dev_name(acpi_dev), "AMDIF031", 8))
+ pt_gpio->gc.ngpio = PT_TOTAL_GPIO_EX;
+ else
+ pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
+
pt_gpio->gc.owner = THIS_MODULE;
pt_gpio->gc.request = pt_gpio_request;
pt_gpio->gc.free = pt_gpio_free;
- pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
#if defined(CONFIG_OF_GPIO)
pt_gpio->gc.of_node = dev->of_node;
#endif
@@ -135,6 +142,7 @@ static int pt_gpio_remove(struct platform_device *pdev)
static const struct acpi_device_id pt_gpio_acpi_match[] = {
{ "AMDF030", 0 },
{ "AMDIF030", 0 },
+ { "AMDIF031", 0 },
{ },
};
MODULE_DEVICE_TABLE(acpi, pt_gpio_acpi_match);
--
2.30.2
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] gpio Add my driver new id
2021-12-03 9:26 [PATCH] gpio Add my driver new id Richard Hsu
@ 2021-12-03 10:15 ` Bartosz Golaszewski
2021-12-03 21:21 ` Andy Shevchenko
0 siblings, 1 reply; 4+ messages in thread
From: Bartosz Golaszewski @ 2021-12-03 10:15 UTC (permalink / raw)
To: Richard Hsu
Cc: Linus Walleij, Richard_Hsu, open list:GPIO SUBSYSTEM,
Linux Kernel Mailing List, Yd_Tseng, Cindy1_Hsu, Andrew_Su,
Andy Shevchenko
On Fri, Dec 3, 2021 at 10:26 AM Richard Hsu <saraon640529@gmail.com> wrote:
>
> drivers/gpio/gpio-amdpt.c | 12 ++++++++++--
> 1 files changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpio/gpio-amdpt.c b/drivers/gpio/gpio-amdpt.c
> index bbf53e289141..4d01d4341a67 100644
> --- a/drivers/gpio/gpio-amdpt.c
> +++ b/drivers/gpio/gpio-amdpt.c
> @@ -14,6 +14,7 @@
> #include <linux/platform_device.h>
>
> #define PT_TOTAL_GPIO 8
> +#define PT_TOTAL_GPIO_EX 24
>
> /* PCI-E MMIO register offsets */
> #define PT_DIRECTION_REG 0x00
> @@ -72,10 +73,12 @@ static void pt_gpio_free(struct gpio_chip *gc, unsigned offset)
> static int pt_gpio_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> + struct acpi_device *acpi_dev;
> + acpi_handle handle = ACPI_HANDLE(dev);
> struct pt_gpio_chip *pt_gpio;
> int ret = 0;
>
> - if (!ACPI_COMPANION(dev)) {
> + if (acpi_bus_get_device(handle, &acpi_dev)) {
> dev_err(dev, "PT GPIO device node not found\n");
> return -ENODEV;
> }
> @@ -100,10 +103,14 @@ static int pt_gpio_probe(struct platform_device *pdev)
> return ret;
> }
>
> + if (!strncmp(acpi_dev_name(acpi_dev), "AMDIF031", 8))
> + pt_gpio->gc.ngpio = PT_TOTAL_GPIO_EX;
> + else
> + pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
> +
> pt_gpio->gc.owner = THIS_MODULE;
> pt_gpio->gc.request = pt_gpio_request;
> pt_gpio->gc.free = pt_gpio_free;
> - pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
> #if defined(CONFIG_OF_GPIO)
> pt_gpio->gc.of_node = dev->of_node;
> #endif
> @@ -135,6 +142,7 @@ static int pt_gpio_remove(struct platform_device *pdev)
> static const struct acpi_device_id pt_gpio_acpi_match[] = {
> { "AMDF030", 0 },
> { "AMDIF030", 0 },
> + { "AMDIF031", 0 },
> { },
> };
> MODULE_DEVICE_TABLE(acpi, pt_gpio_acpi_match);
> --
> 2.30.2
>
Hi Richard,
Please Cc Andy next time on any GPIO stuff related to ACPI. I'll let
him comment on the code. Your commit message must be more descriptive
- the title should say "gpio: <driver name>: <do this and that>".
Please also add a commit message explaining what the code does in
detail.
Bart
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] gpio Add my driver new id
2021-12-03 10:15 ` Bartosz Golaszewski
@ 2021-12-03 21:21 ` Andy Shevchenko
2021-12-06 6:49 ` Richard Hsu(許育彰)
0 siblings, 1 reply; 4+ messages in thread
From: Andy Shevchenko @ 2021-12-03 21:21 UTC (permalink / raw)
To: Bartosz Golaszewski
Cc: Richard Hsu, Linus Walleij, Richard_Hsu,
open list:GPIO SUBSYSTEM, Linux Kernel Mailing List, Yd_Tseng,
Cindy1_Hsu, Andrew_Su
On Fri, Dec 03, 2021 at 11:15:46AM +0100, Bartosz Golaszewski wrote:
> On Fri, Dec 3, 2021 at 10:26 AM Richard Hsu <saraon640529@gmail.com> wrote:
Thanks, Bart, for pointing out to this.
> > #define PT_TOTAL_GPIO 8
> > +#define PT_TOTAL_GPIO_EX 24
...
> > + struct acpi_device *acpi_dev;
> > + acpi_handle handle = ACPI_HANDLE(dev);
> > - if (!ACPI_COMPANION(dev)) {
> > + if (acpi_bus_get_device(handle, &acpi_dev)) {
What you are doing here is open coding the ACPI_COMPANION().
But see below.
...
> > + if (!strncmp(acpi_dev_name(acpi_dev), "AMDIF031", 8))
> > + pt_gpio->gc.ngpio = PT_TOTAL_GPIO_EX;
> > + else
> > + pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
Instead of doing this...
> > static const struct acpi_device_id pt_gpio_acpi_match[] = {
> > { "AMDF030", 0 },
> > { "AMDIF030", 0 },
> > + { "AMDIF031", 0 },
Just use .driver_data here and if needed in the other ID tables and then simply
retrieve it (w/o any conditions) in the code above:
pt_gpio->gc.ngpio = (uintptr_t)device_get_match_data(dev);
> > { },
> > };
> Please Cc Andy next time on any GPIO stuff related to ACPI. I'll let
> him comment on the code. Your commit message must be more descriptive
> - the title should say "gpio: <driver name>: <do this and that>".
> Please also add a commit message explaining what the code does in
> detail.
--
With Best Regards,
Andy Shevchenko
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [PATCH] gpio Add my driver new id
2021-12-03 21:21 ` Andy Shevchenko
@ 2021-12-06 6:49 ` Richard Hsu(許育彰)
0 siblings, 0 replies; 4+ messages in thread
From: Richard Hsu(許育彰) @ 2021-12-06 6:49 UTC (permalink / raw)
To: Andy Shevchenko, Bartosz Golaszewski,
Richard Hsu(許育彰)
Cc: Richard Hsu, Linus Walleij, open list:GPIO SUBSYSTEM,
Linux Kernel Mailing List, Yd Tseng(曾裕達),
Cindy1 Hsu(許凱茵),
Andrew Su(蘇俊源)
Hi Andy & Bartosz!
Sorry for the late reply. New acpi device AMDIF031 have 24 gpio pins and older AMDF030/AMDIF030 have 8 gpio pins,
I use acpi_bus_get_device() that check acpi device and gain acpi_dev info to replace the original. Then we check and compare device name from acpi_dev_name(acpi_dev).
If AMDIF031(pt_gpio->gc.ngpio = 24) or AMDF030/AMDIF030 (pt_gpio->gc.ngpio = 8).
I will try to use .driver_data, and add commit messages on title and code that explain what the code does in detail later
Thanks
Richard
> > #define PT_TOTAL_GPIO 8
> > +#define PT_TOTAL_GPIO_EX 24
...
> > + struct acpi_device *acpi_dev;
> > + acpi_handle handle = ACPI_HANDLE(dev);
> > - if (!ACPI_COMPANION(dev)) {
> > + if (acpi_bus_get_device(handle, &acpi_dev)) {
What you are doing here is open coding the ACPI_COMPANION().
But see below.
...
> > + if (!strncmp(acpi_dev_name(acpi_dev), "AMDIF031", 8))
> > + pt_gpio->gc.ngpio = PT_TOTAL_GPIO_EX;
> > + else
> > + pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
Instead of doing this...
> > static const struct acpi_device_id pt_gpio_acpi_match[] = {
> > { "AMDF030", 0 },
> > { "AMDIF030", 0 },
> > + { "AMDIF031", 0 },
-----Original Message-----
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Sent: Saturday, December 4, 2021 5:21 AM
To: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Richard Hsu <saraon640529@gmail.com>; Linus Walleij <linus.walleij@linaro.org>; Richard Hsu(許育彰) <Richard_Hsu@asmedia.com.tw>; open list:GPIO SUBSYSTEM <linux-gpio@vger.kernel.org>; Linux Kernel Mailing List <linux-kernel@vger.kernel.org>; Yd Tseng(曾裕達) <Yd_Tseng@asmedia.com.tw>; Cindy1 Hsu(許凱茵) <Cindy1_Hsu@asmedia.com.tw>; Andrew Su(蘇俊源) <Andrew_Su@asmedia.com.tw>
Subject: Re: [PATCH] gpio Add my driver new id
On Fri, Dec 03, 2021 at 11:15:46AM +0100, Bartosz Golaszewski wrote:
> On Fri, Dec 3, 2021 at 10:26 AM Richard Hsu <saraon640529@gmail.com> wrote:
Thanks, Bart, for pointing out to this.
> > #define PT_TOTAL_GPIO 8
> > +#define PT_TOTAL_GPIO_EX 24
...
> > + struct acpi_device *acpi_dev;
> > + acpi_handle handle = ACPI_HANDLE(dev);
> > - if (!ACPI_COMPANION(dev)) {
> > + if (acpi_bus_get_device(handle, &acpi_dev)) {
What you are doing here is open coding the ACPI_COMPANION().
But see below.
...
> > + if (!strncmp(acpi_dev_name(acpi_dev), "AMDIF031", 8))
> > + pt_gpio->gc.ngpio = PT_TOTAL_GPIO_EX;
> > + else
> > + pt_gpio->gc.ngpio = PT_TOTAL_GPIO;
Instead of doing this...
> > static const struct acpi_device_id pt_gpio_acpi_match[] = {
> > { "AMDF030", 0 },
> > { "AMDIF030", 0 },
> > + { "AMDIF031", 0 },
Just use .driver_data here and if needed in the other ID tables and then simply retrieve it (w/o any conditions) in the code above:
pt_gpio->gc.ngpio = (uintptr_t)device_get_match_data(dev);
> > { },
> > };
> Please Cc Andy next time on any GPIO stuff related to ACPI. I'll let
> him comment on the code. Your commit message must be more descriptive
> - the title should say "gpio: <driver name>: <do this and that>".
> Please also add a commit message explaining what the code does in
> detail.
--
With Best Regards,
Andy Shevchenko
<p></p>
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2021-12-03 10:15 ` Bartosz Golaszewski
2021-12-03 21:21 ` Andy Shevchenko
2021-12-06 6:49 ` Richard Hsu(許育彰)
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