From: Richard Hsu <saraon640529@gmail.com>
To: linus.walleij@linaro.org, brgl@bgdev.pl,
Richard_Hsu@asmedia.com.tw, andriy.shevchenko@linux.intel.com
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
Yd_Tseng@asmedia.com.tw, Cindy1_Hsu@asmedia.com.tw,
Andrew_Su@asmedia.com.tw
Subject: [PATCH] gpio:gpio-amdpt:add new device and that 24-pin support
Date: Tue, 7 Dec 2021 17:42:39 +0800 [thread overview]
Message-ID: <20211207094239.5059-1-Richard_Hsu@asmedia.com.tw> (raw)
From: RichardHsu <Richard_Hsu@asmedia.com.tw>
New ACPI gpio device(AMDIF031) support 24 gpio pins. We add new device id and pin number to .driver_data of acpi_device_id structure
and then retrieve it by device_get_match_data() that Andy suggest it.
Signed-off-by: RichardHsu <Richard_Hsu@asmedia.com.tw>
---
drivers/gpio/gpio-amdpt.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-amdpt.c b/drivers/gpio/gpio-amdpt.c
index bbf53e289141..a45693423a07 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
@@ -103,7 +104,8 @@ static int pt_gpio_probe(struct platform_device *pdev)
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;
+ /* retrieve pin number from .driver_data of acpi_device_id structure */
+ pt_gpio->gc.ngpio = (uintptr_t)device_get_match_data(dev);
#if defined(CONFIG_OF_GPIO)
pt_gpio->gc.of_node = dev->of_node;
#endif
@@ -133,8 +135,9 @@ static int pt_gpio_remove(struct platform_device *pdev)
}
static const struct acpi_device_id pt_gpio_acpi_match[] = {
- { "AMDF030", 0 },
- { "AMDIF030", 0 },
+ { "AMDF030", PT_TOTAL_GPIO },
+ { "AMDIF030", PT_TOTAL_GPIO },
+ { "AMDIF031", PT_TOTAL_GPIO_EX },
{ },
};
MODULE_DEVICE_TABLE(acpi, pt_gpio_acpi_match);
--
2.30.2
next reply other threads:[~2021-12-07 9:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-07 9:42 Richard Hsu [this message]
2021-12-07 12:22 ` [PATCH] gpio:gpio-amdpt:add new device and that 24-pin support Andy Shevchenko
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