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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
commitb20732900e4636a467c0183a47f7396700f5f743 (patch)
tree42f079ff82e701ebcb76829974b4caca3e5b6798 /drivers/opp
parentAdding upstream version 6.8.12. (diff)
downloadlinux-b20732900e4636a467c0183a47f7396700f5f743.tar.xz
linux-b20732900e4636a467c0183a47f7396700f5f743.zip
Adding upstream version 6.9.7.upstream/6.9.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c32
-rw-r--r--drivers/opp/debugfs.c8
2 files changed, 35 insertions, 5 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index c4e0432ae4..cb4611fe1b 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2065,6 +2065,7 @@ int _opp_add_v1(struct opp_table *opp_table, struct device *dev,
/* populate the opp table */
new_opp->rates[0] = data->freq;
new_opp->level = data->level;
+ new_opp->turbo = data->turbo;
tol = u_volt * opp_table->voltage_tolerance_v1 / 100;
new_opp->supplies[0].u_volt = u_volt;
new_opp->supplies[0].u_volt_min = u_volt - tol;
@@ -2393,7 +2394,8 @@ static void _opp_detach_genpd(struct opp_table *opp_table)
static int _opp_attach_genpd(struct opp_table *opp_table, struct device *dev,
const char * const *names, struct device ***virt_devs)
{
- struct device *virt_dev;
+ struct device *virt_dev, *gdev;
+ struct opp_table *genpd_table;
int index = 0, ret = -EINVAL;
const char * const *name = names;
@@ -2427,6 +2429,34 @@ static int _opp_attach_genpd(struct opp_table *opp_table, struct device *dev,
}
/*
+ * The required_opp_tables parsing is not perfect, as the OPP
+ * core does the parsing solely based on the DT node pointers.
+ * The core sets the required_opp_tables entry to the first OPP
+ * table in the "opp_tables" list, that matches with the node
+ * pointer.
+ *
+ * If the target DT OPP table is used by multiple devices and
+ * they all create separate instances of 'struct opp_table' from
+ * it, then it is possible that the required_opp_tables entry
+ * may be set to the incorrect sibling device.
+ *
+ * Cross check it again and fix if required.
+ */
+ gdev = dev_to_genpd_dev(virt_dev);
+ if (IS_ERR(gdev))
+ return PTR_ERR(gdev);
+
+ genpd_table = _find_opp_table(gdev);
+ if (!IS_ERR(genpd_table)) {
+ if (genpd_table != opp_table->required_opp_tables[index]) {
+ dev_pm_opp_put_opp_table(opp_table->required_opp_tables[index]);
+ opp_table->required_opp_tables[index] = genpd_table;
+ } else {
+ dev_pm_opp_put_opp_table(genpd_table);
+ }
+ }
+
+ /*
* Add the virtual genpd device as a user of the OPP table, so
* we can call dev_pm_opp_set_opp() on it directly.
*
diff --git a/drivers/opp/debugfs.c b/drivers/opp/debugfs.c
index f157fb50be..105de7c327 100644
--- a/drivers/opp/debugfs.c
+++ b/drivers/opp/debugfs.c
@@ -58,11 +58,11 @@ static void opp_debug_create_bw(struct dev_pm_opp *opp,
struct dentry *pdentry)
{
struct dentry *d;
- char name[20];
+ char name[] = "icc-path-XXXXXXXXXXX"; /* Integers can take 11 chars max */
int i;
for (i = 0; i < opp_table->path_count; i++) {
- snprintf(name, sizeof(name), "icc-path-%.1d", i);
+ snprintf(name, sizeof(name), "icc-path-%d", i);
/* Create per-path directory */
d = debugfs_create_dir(name, pdentry);
@@ -80,7 +80,7 @@ static void opp_debug_create_clks(struct dev_pm_opp *opp,
struct opp_table *opp_table,
struct dentry *pdentry)
{
- char name[12];
+ char name[] = "rate_hz_XXXXXXXXXXX"; /* Integers can take 11 chars max */
int i;
if (opp_table->clk_count == 1) {
@@ -102,7 +102,7 @@ static void opp_debug_create_supplies(struct dev_pm_opp *opp,
int i;
for (i = 0; i < opp_table->regulator_count; i++) {
- char name[15];
+ char name[] = "supply-XXXXXXXXXXX"; /* Integers can take 11 chars max */
snprintf(name, sizeof(name), "supply-%d", i);