Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) client-ip=2620:137:e000::3:4;
Message-ID: <b8b1a3f0-3aca-341c-07ee-389b077a01f7@redhat.com>
Date:   Thu, 28 Sep 2023 14:42:50 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.13.0
Subject: [PATCH v2 2/5] platform/x86: int3472: Add new
 skl_int3472_gpiod_get_from_temp_lookup() helper
Content-Language: en-US
From:   Hans de Goede <hdegoede@redhat.com>
To:     Bartosz Golaszewski <brgl@bgdev.pl>,
        Mika Westerberg <mika.westerberg@linux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Daniel Scally <djrscally@gmail.com>,
        Mark Gross <markgross@kernel.org>
Cc:     linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org,
        linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
References: <20230926145943.42814-1-brgl@bgdev.pl>
 <e6817d30-b443-1a73-efae-84415604b19f@redhat.com>
In-Reply-To: <e6817d30-b443-1a73-efae-84415604b19f@redhat.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

Add a new skl_int3472_gpiod_get_from_temp_lookup() helper.

This is a preparation patch for removing usage of the deprecated
gpiod_toggle_active_low() and acpi_get_and_request_gpiod() functions.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
[hdegoede@redhat.com] use the new skl_int3472_fill_gpiod_lookup() helper
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/platform/x86/intel/int3472/discrete.c | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index 351ecf047944..a46c3a206aa3 100644
--- a/drivers/platform/x86/intel/int3472/discrete.c
+++ b/drivers/platform/x86/intel/int3472/discrete.c
@@ -99,6 +99,32 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347
 	return 0;
 }
 
+/* This should *really* only be used when there's no other way... */
+static struct gpio_desc *
+skl_int3472_gpiod_get_from_temp_lookup(struct int3472_discrete_device *int3472,
+				       struct acpi_resource_gpio *agpio,
+				       const char *func, u32 polarity)
+{
+	struct gpio_desc *desc;
+	int ret;
+
+	struct gpiod_lookup_table *lookup __free(kfree) =
+			kzalloc(struct_size(lookup, table, 1), GFP_KERNEL);
+	if (!lookup)
+		return ERR_PTR(-ENOMEM);
+
+	lookup->dev_id = dev_name(int3472->dev);
+	ret = skl_int3472_fill_gpiod_lookup(&lookup->table[0], agpio, func, polarity);
+	if (ret)
+		return ERR_PTR(ret);
+
+	gpiod_add_lookup_table(lookup);
+	desc = gpiod_get(int3472->dev, func, GPIOD_OUT_LOW);
+	gpiod_remove_lookup_table(lookup);
+
+	return desc;
+}
+
 static void int3472_get_func_and_polarity(u8 type, const char **func, u32 *polarity)
 {
 	switch (type) {
-- 
2.41.0