From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Sebastian Reichel <sebastian.reichel@collabora.com>
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
clang-built-linux@googlegroups.com
Subject: [PATCH v4 1/4] power: supply: core: tabularize HWMON temperature labels
Date: Fri, 01 May 2020 17:11:18 +0200 [thread overview]
Message-ID: <79bec8125df260bdae294345bd7773dc3dd9c434.1588345420.git.mirq-linux@rere.qmqm.pl> (raw)
In-Reply-To: <cover.1588345420.git.mirq-linux@rere.qmqm.pl>
Rework power_supply_hwmon_read_string() to check it's parameters.
This allows to extend it later with labels for other types of
measurements.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
---
v2: split from fix temperature labels
v3: remove power_supply_hwmon_read_string() parameter checks
as it is internal API (suggested by Guenter Roeck)
v4: remove unreachable() as it triggers compiler bugs
---
drivers/power/supply/power_supply_hwmon.c | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/power/supply/power_supply_hwmon.c b/drivers/power/supply/power_supply_hwmon.c
index af72e5693f65..f5d538485aaa 100644
--- a/drivers/power/supply/power_supply_hwmon.c
+++ b/drivers/power/supply/power_supply_hwmon.c
@@ -13,6 +13,11 @@ struct power_supply_hwmon {
unsigned long *props;
};
+static const char *const ps_temp_label[] = {
+ "temp",
+ "ambient temp",
+};
+
static int power_supply_hwmon_in_to_property(u32 attr)
{
switch (attr) {
@@ -180,7 +185,20 @@ static int power_supply_hwmon_read_string(struct device *dev,
u32 attr, int channel,
const char **str)
{
- *str = channel ? "temp ambient" : "temp";
+ switch (type) {
+ case hwmon_temp:
+ *str = ps_temp_label[channel];
+ break;
+ default:
+ /* unreachable, but see:
+ * gcc bug #51513 [1] and clang bug #978 [2]
+ *
+ * [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51513
+ * [2] https://github.com/ClangBuiltLinux/linux/issues/978
+ */
+ break;
+ }
+
return 0;
}
--
2.20.1
next prev parent reply other threads:[~2020-05-01 15:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-01 15:11 [PATCH v4 0/4] power: supply: core: extend with new properties Michał Mirosław
2020-05-01 15:11 ` Michał Mirosław [this message]
2020-05-02 22:24 ` [PATCH v4 1/4] power: supply: core: tabularize HWMON temperature labels Sebastian Reichel
2020-05-01 15:11 ` [PATCH v4 2/4] power: supply: core: add input voltage/current measurements Michał Mirosław
2020-05-02 22:23 ` Sebastian Reichel
2020-05-02 22:45 ` Michał Mirosław
2020-05-02 23:11 ` Michał Mirosław
2020-05-03 0:09 ` Sebastian Reichel
2020-05-01 15:11 ` [PATCH v4 4/4] power: supply: core: document measurement points Michał Mirosław
2020-05-01 15:11 ` [PATCH v4 3/4] power: supply: core: add output voltage measurements Michał Mirosław
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=79bec8125df260bdae294345bd7773dc3dd9c434.1588345420.git.mirq-linux@rere.qmqm.pl \
--to=mirq-linux@rere.qmqm.pl \
--cc=clang-built-linux@googlegroups.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=sebastian.reichel@collabora.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).