* Re: [PATCH] PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties
2015-12-16 15:41 [PATCH] PM / OPP: Fix parsing of opp-microvolt and opp-microamp properties Bartlomiej Zolnierkiewicz
@ 2015-12-17 2:01 ` Viresh Kumar
0 siblings, 0 replies; 2+ messages in thread
From: Viresh Kumar @ 2015-12-17 2:01 UTC (permalink / raw)
To: Bartlomiej Zolnierkiewicz
Cc: Lee Jones, Rafael J. Wysocki, Stephen Boyd, nm, linaro-kernel,
linux-pm, Dmitry Torokhov, Greg Kroah-Hartman, Len Brown,
open list, Pavel Machek, Shawn Guo, linux-samsung-soc
On 16-12-15, 16:41, Bartlomiej Zolnierkiewicz wrote:
> Commit 01fb4d3c39d3 ("PM / OPP: Parse 'opp-<prop>-<name>'
> bindings") broke support for parsing standard opp-microvolt and
> opp-microamp properties. Fix it by setting 'name' string to
> proper value for !dev_opp->prop_name cases.
>
> Cc: Viresh Kumar <viresh.kumar@linaro.org>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Fixes: 01fb4d3c39d3 ("PM / OPP: Parse 'opp-<prop>-<name> 'bindings")
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
> ---
> This fixes Exynos4x12 cpufreq-dt support regression present in
> linux-pm/linux-next tree. Rafael, please apply. Thank you.
>
> drivers/base/power/opp/core.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> Index: b/drivers/base/power/opp/core.c
> ===================================================================
> --- a/drivers/base/power/opp/core.c 2015-12-16 16:10:13.509171420 +0100
> +++ b/drivers/base/power/opp/core.c 2015-12-16 16:21:18.385183902 +0100
> @@ -806,11 +806,11 @@ static int opp_parse_supplies(struct dev
> struct property *prop = NULL;
> char name[NAME_MAX];
>
> + sprintf(name, "opp-microvolt-%s", dev_opp->prop_name);
> +
> /* Search for "opp-microvolt-<name>" */
> - if (dev_opp->prop_name) {
> - sprintf(name, "opp-microvolt-%s", dev_opp->prop_name);
> + if (dev_opp->prop_name)
> prop = of_find_property(opp->np, name, NULL);
> - }
>
> if (!prop) {
> /* Search for "opp-microvolt" */
> @@ -848,10 +848,10 @@ static int opp_parse_supplies(struct dev
>
> /* Search for "opp-microamp-<name>" */
> prop = NULL;
> - if (dev_opp->prop_name) {
> - sprintf(name, "opp-microamp-%s", dev_opp->prop_name);
> + sprintf(name, "opp-microamp-%s", dev_opp->prop_name);
> +
> + if (dev_opp->prop_name)
> prop = of_find_property(opp->np, name, NULL);
> - }
>
> if (!prop) {
> /* Search for "opp-microamp" */
Sorry about this. And I am disliking the solution suggested by Stephen
more and more now. Please resend this patch with following changes
instead:
diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
index 6c6856e426f0..a96df5cda303 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/base/power/opp/core.c
@@ -816,7 +816,7 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
if (!prop) {
/* Search for "opp-microvolt" */
- name[13] = '\0';
+ sprintf(name, "opp-microvolt");
prop = of_find_property(opp->np, name, NULL);
/* Missing property isn't a problem, but an invalid entry is */
@@ -857,7 +857,7 @@ static int opp_parse_supplies(struct dev_pm_opp *opp, struct device *dev,
if (!prop) {
/* Search for "opp-microamp" */
- name[12] = '\0';
+ sprintf(name, "opp-microamp");
prop = of_find_property(opp->np, name, NULL);
}
--
viresh
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