From f188d5894b5f5f0922fd4b20a14d892f267a8f7c Mon Sep 17 00:00:00 2001
From: Paul Guyot <pguyot@kallisys.net>
Date: Mon, 6 May 2024 08:23:15 +0200
Subject: [PATCH] Use apt-cache show in CI (#18)

* Use apt-cache show in CI
* Support kernel 6.1. (#17)
* Support kernels 6.2+

Signed-off-by: Paul Guyot <pguyot@kallisys.net>
Co-authored-by: Fabrice Laurens <33164641+f-laurens@users.noreply.github.com>
---
 .github/workflows/arm-runner.yml |  8 ++++----
 Makefile                         |  8 ++++++++
 cr14.c                           | 24 ++++++++++++++++++++++++
 3 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/arm-runner.yml b/.github/workflows/arm-runner.yml
index c6bc956..fd469d5 100644
--- a/.github/workflows/arm-runner.yml
+++ b/.github/workflows/arm-runner.yml
@@ -52,10 +52,10 @@ jobs:
         cpu: ${{ matrix.cpu }}
         cpu_info: ${{ matrix.cpu_info }}
         commands: |
-            kernel_version=`apt list --installed | grep raspberrypi-kernel | awk 'NR == 1 { print $2 }' | sed -e 's|1:||g'`
-            arch=`apt list --installed | grep raspberrypi-kernel | awk 'NR == 1 { print $3 }'`
-            wget -q http://archive.raspberrypi.org/debian/pool/main/r/raspberrypi-firmware/raspberrypi-kernel-headers_${kernel_version}_${arch}.deb
-            dpkg --install raspberrypi-kernel-headers_${kernel_version}_${arch}.deb
+            apt-get update -y --allow-releaseinfo-change
+            kernel_headers_pkg=`apt-cache show raspberrypi-kernel-headers | sed -n -e 's|Filename: .*/||p'`
+            wget -q http://archive.raspberrypi.org/debian/pool/main/r/raspberrypi-firmware/${kernel_headers_pkg}
+            dpkg --install ${kernel_headers_pkg}
             apt-get update -y --allow-releaseinfo-change
             apt-get install --no-install-recommends -y libasound2-dev make gcc libc6-dev
             for builddir in /lib/modules/*/build ; do
diff --git a/Makefile b/Makefile
index f913bd3..d1dec54 100644
--- a/Makefile
+++ b/Makefile
@@ -16,6 +16,14 @@ endif
 all:
 	make -C /lib/modules/$(KERNELRELEASE)/build M=$(PWD) modules
 
+# dtbo rule is no longer available
+ifeq ($(firstword $(subst ., ,$(KERNELRELEASE))),6)
+all: cr14.dtbo
+
+cr14.dtbo: cr14-overlay.dts
+	dtc -I dts -O dtb -o $@ $<
+endif
+
 clean:
 	make -C /lib/modules/$(KERNELRELEASE)/build M=$(PWD) clean
 
diff --git a/cr14.c b/cr14.c
index 3648737..9d9e184 100644
--- a/cr14.c
+++ b/cr14.c
@@ -21,6 +21,8 @@
 #include <linux/i2c.h>
 #include <linux/circ_buf.h>
 
+#include <linux/version.h>
+
 // ========================================================================== //
 // PROTOCOL
 // ========================================================================== //
@@ -230,9 +232,17 @@ static ssize_t cr14_write(struct file *file, const char __user *buffer,
 			  size_t len, loff_t *ppos);
 static unsigned int cr14_poll(struct file *file, poll_table *wait);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
 static int cr14_i2c_probe(struct i2c_client *i2c,
 			  const struct i2c_device_id *id);
+#else
+static int cr14_i2c_probe(struct i2c_client *i2c);
+#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 0, 0)
 static int cr14_i2c_remove(struct i2c_client *client);
+#else
+static void cr14_i2c_remove(struct i2c_client *client);
+#endif
 
 // ========================================================================== //
 // Polling code
@@ -1118,8 +1128,12 @@ static struct file_operations cr14_fops = {
 // Probing, initialization and cleanup
 // ========================================================================== //
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 2, 0)
 static int cr14_i2c_probe(struct i2c_client *i2c,
 			  const struct i2c_device_id *id)
+#else
+static int cr14_i2c_probe(struct i2c_client *i2c)
+#endif
 {
 	struct cr14_i2c_data *priv;
 	struct device *dev = &i2c->dev;
@@ -1162,7 +1176,11 @@ static int cr14_i2c_probe(struct i2c_client *i2c,
 	}
 
 	// Create device class
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 4, 0)
 	priv->cr14_class = class_create(THIS_MODULE, DEVICE_NAME);
+#else
+	priv->cr14_class = class_create(DEVICE_NAME);
+#endif
 	if (IS_ERR(priv->cr14_class)) {
 		err = PTR_ERR(priv->cr14_class);
 		dev_err(dev, "class_create failed: %d", err);
@@ -1199,7 +1217,11 @@ static int cr14_i2c_probe(struct i2c_client *i2c,
 	return 0;
 }
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 0, 0)
 static int cr14_i2c_remove(struct i2c_client *client)
+#else
+static void cr14_i2c_remove(struct i2c_client *client)
+#endif
 {
 	struct cr14_i2c_data *priv;
 	priv = i2c_get_clientdata(client);
@@ -1220,7 +1242,9 @@ static int cr14_i2c_remove(struct i2c_client *client)
 	del_timer_sync(&priv->polling_timer);
 	cancel_work_sync(&priv->polling_work);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 0, 0)
 	return 0;
+#endif
 }
 
 #ifdef CONFIG_OF