diff mbox series

[v3,37/40] fsi: core: Add different types of CFAM

Message ID 20240516181907.3468796-38-eajames@linux.ibm.com
State New
Headers show
Series fsi: Add interrupt support | expand

Commit Message

Eddie James May 16, 2024, 6:19 p.m. UTC
Detect the CFAM type based on the chip id and set up the device
type based on the CFAM type.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
 drivers/fsi/fsi-core.c | 84 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 83 insertions(+), 1 deletion(-)

Comments

kernel test robot May 17, 2024, 12:38 p.m. UTC | #1
Hi Eddie,

kernel test robot noticed the following build warnings:

[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on robh/for-next broonie-spi/for-next linus/master v6.9 next-20240517]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Eddie-James/fsi-hub-Set-master-index-to-link-number-plus-one/20240517-023205
base:   git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link:    https://lore.kernel.org/r/20240516181907.3468796-38-eajames%40linux.ibm.com
patch subject: [PATCH v3 37/40] fsi: core: Add different types of CFAM
config: i386-buildonly-randconfig-002-20240517 (https://download.01.org/0day-ci/archive/20240517/202405172019.j3pOURPP-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240517/202405172019.j3pOURPP-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405172019.j3pOURPP-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/fsi/fsi-core.c:1113:27: warning: no previous prototype for function 'fsi_get_cfam_type' [-Wmissing-prototypes]
    1113 | const struct device_type *fsi_get_cfam_type(u32 id)
         |                           ^
   drivers/fsi/fsi-core.c:1113:7: note: declare 'static' if the function is not intended to be used outside of this translation unit
    1113 | const struct device_type *fsi_get_cfam_type(u32 id)
         |       ^
         | static 
   1 warning generated.


vim +/fsi_get_cfam_type +1113 drivers/fsi/fsi-core.c

  1112	
> 1113	const struct device_type *fsi_get_cfam_type(u32 id)
  1114	{
  1115		u32 major = (id & 0xf00) >> 8;
  1116		u32 minor = (id & 0xf0) >> 4;
  1117	
  1118		switch (major) {
  1119		case 0x9:
  1120			return &cfam_s_type;
  1121		case 0xc:
  1122			if (minor == 0)
  1123				return &cfam_ody_type;
  1124			fallthrough;
  1125		case 0xd:
  1126		default:
  1127			return &cfam_type;
  1128		}
  1129	}
  1130
kernel test robot May 17, 2024, 3:49 p.m. UTC | #2
Hi Eddie,

kernel test robot noticed the following build warnings:

[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on linus/master v6.9 next-20240517]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Eddie-James/fsi-hub-Set-master-index-to-link-number-plus-one/20240517-023205
base:   git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link:    https://lore.kernel.org/r/20240516181907.3468796-38-eajames%40linux.ibm.com
patch subject: [PATCH v3 37/40] fsi: core: Add different types of CFAM
config: x86_64-randconfig-122-20240517 (https://download.01.org/0day-ci/archive/20240517/202405172346.olJbkgod-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240517/202405172346.olJbkgod-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405172346.olJbkgod-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/fsi/fsi-core.c:1113:26: sparse: sparse: symbol 'fsi_get_cfam_type' was not declared. Should it be static?

vim +/fsi_get_cfam_type +1113 drivers/fsi/fsi-core.c

  1112	
> 1113	const struct device_type *fsi_get_cfam_type(u32 id)
  1114	{
  1115		u32 major = (id & 0xf00) >> 8;
  1116		u32 minor = (id & 0xf0) >> 4;
  1117	
  1118		switch (major) {
  1119		case 0x9:
  1120			return &cfam_s_type;
  1121		case 0xc:
  1122			if (minor == 0)
  1123				return &cfam_ody_type;
  1124			fallthrough;
  1125		case 0xd:
  1126		default:
  1127			return &cfam_type;
  1128		}
  1129	}
  1130
diff mbox series

Patch

diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 3d2bedb3ad51b..2785812a7d4ad 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -1028,6 +1028,37 @@  static struct attribute *cfam_attrs[] = {
 
 ATTRIBUTE_GROUPS(cfam);
 
+static struct attribute *cfam_s_attrs[] = {
+	&dev_attr_send_echo_delays.attr,
+	&dev_attr_chip_id.attr,
+	&dev_attr_cfam_id.attr,
+	&dev_attr_send_term.attr,
+	&dev_attr_config_table.attr,
+	&dev_attr_smode.attr.attr,
+	&dev_attr_sdma.attr.attr,
+	&dev_attr_sisc.attr.attr,
+	&dev_attr_sism.attr.attr,
+	&dev_attr_siss.attr.attr,
+	&dev_attr_sstat.attr.attr,
+	&dev_attr_si1m.attr.attr,
+	&dev_attr_si1s.attr.attr,
+	&dev_attr_sic.attr.attr,
+	&dev_attr_si2m.attr.attr,
+	&dev_attr_si2s.attr.attr,
+	&dev_attr_scmdt.attr.attr,
+	&dev_attr_sdata.attr.attr,
+	&dev_attr_slastd.attr.attr,
+	&dev_attr_smbl.attr.attr,
+	&dev_attr_soml.attr.attr,
+	&dev_attr_snml.attr.attr,
+	&dev_attr_smbr.attr.attr,
+	&dev_attr_somr.attr.attr,
+	&dev_attr_snmr.attr.attr,
+	NULL,
+};
+
+ATTRIBUTE_GROUPS(cfam_s);
+
 static char *cfam_devnode(const struct device *dev, umode_t *mode,
 			  kuid_t *uid, kgid_t *gid)
 {
@@ -1046,6 +1077,57 @@  static const struct device_type cfam_type = {
 	.groups = cfam_groups
 };
 
+static char *cfam_ody_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid)
+{
+	const struct fsi_slave *slave = to_fsi_slave(dev);
+
+#ifdef CONFIG_FSI_NEW_DEV_NODE
+	return kasprintf(GFP_KERNEL, "fsi/ody%d", slave->cdev_idx);
+#else
+	return kasprintf(GFP_KERNEL, "ody%d", slave->cdev_idx);
+#endif
+}
+
+static const struct device_type cfam_ody_type = {
+	.name = "ody",
+	.devnode = cfam_ody_devnode
+};
+
+static char *cfam_s_devnode(const struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid)
+{
+	const struct fsi_slave *slave = to_fsi_slave(dev);
+
+#ifdef CONFIG_FSI_NEW_DEV_NODE
+	return kasprintf(GFP_KERNEL, "fsi/cfam-s%d", slave->cdev_idx);
+#else
+	return kasprintf(GFP_KERNEL, "cfam-s%d", slave->cdev_idx);
+#endif
+}
+
+static const struct device_type cfam_s_type = {
+	.name = "cfam-s",
+	.devnode = cfam_s_devnode,
+	.groups = cfam_s_groups,
+};
+
+const struct device_type *fsi_get_cfam_type(u32 id)
+{
+	u32 major = (id & 0xf00) >> 8;
+	u32 minor = (id & 0xf0) >> 4;
+
+	switch (major) {
+	case 0x9:
+		return &cfam_s_type;
+	case 0xc:
+		if (minor == 0)
+			return &cfam_ody_type;
+		fallthrough;
+	case 0xd:
+	default:
+		return &cfam_type;
+	}
+}
+
 static char *fsi_cdev_devnode(const struct device *dev, umode_t *mode,
 			      kuid_t *uid, kgid_t *gid)
 {
@@ -1202,7 +1284,7 @@  static int fsi_slave_init(struct fsi_master *master, int link, uint8_t id)
 
 	spin_lock_init(&slave->lock);
 	dev_set_name(&slave->dev, "slave@%02x:%02x", link, id);
-	slave->dev.type = &cfam_type;
+	slave->dev.type = fsi_get_cfam_type(cfam_id);
 	slave->dev.parent = &master->dev;
 	slave->dev.of_node = fsi_slave_find_of_node(master, link, id);
 	slave->dev.release = fsi_slave_release;