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Subject[PATCH v3 05/13] thermal: qoriq: Embed per-sensor data into struct qoriq_tmu_data
Date
Embed per-sensor data into struct qoriq_tmu_data so we can drop the
code allocating it. This also allows us to get rid of per-sensor back
reference to struct qoriq_tmu_data since now its address can be
caluclated using container_of().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/thermal/qoriq_thermal.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c
index e281bdcfa11f..deb5cb6a0baf 100644
--- a/drivers/thermal/qoriq_thermal.c
+++ b/drivers/thermal/qoriq_thermal.c
@@ -59,22 +59,24 @@ struct qoriq_tmu_regs {
u32 ttr3cr; /* Temperature Range 3 Control Register */
};

-struct qoriq_tmu_data;
-
/*
* Thermal zone data
*/
struct qoriq_sensor {
- struct qoriq_tmu_data *qdata;
int id;
};

struct qoriq_tmu_data {
struct qoriq_tmu_regs __iomem *regs;
bool little_endian;
- struct qoriq_sensor *sensor[SITES_MAX];
+ struct qoriq_sensor sensor[SITES_MAX];
};

+static struct qoriq_tmu_data *qoriq_sensor_to_data(struct qoriq_sensor *s)
+{
+ return container_of(s, struct qoriq_tmu_data, sensor[s->id]);
+}
+
static void tmu_write(struct qoriq_tmu_data *p, u32 val, void __iomem *addr)
{
if (p->little_endian)
@@ -94,7 +96,7 @@ static u32 tmu_read(struct qoriq_tmu_data *p, void __iomem *addr)
static int tmu_get_temp(void *p, int *temp)
{
struct qoriq_sensor *qsensor = p;
- struct qoriq_tmu_data *qdata = qsensor->qdata;
+ struct qoriq_tmu_data *qdata = qoriq_sensor_to_data(qsensor);
u32 val;

val = tmu_read(qdata, &qdata->regs->site[qsensor->id].tritsr);
@@ -114,15 +116,9 @@ static int qoriq_tmu_register_tmu_zone(struct platform_device *pdev)

for (id = 0; id < SITES_MAX; id++) {
struct thermal_zone_device *tzd;
- struct qoriq_sensor *s;
-
- s = qdata->sensor[id] = devm_kzalloc(&pdev->dev,
- sizeof(struct qoriq_sensor), GFP_KERNEL);
- if (!qdata->sensor[id])
- return -ENOMEM;
+ struct qoriq_sensor *s = &qdata->sensor[id];

s->id = id;
- s->qdata = qdata;

tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, id,
s, &tmu_tz_ops);
--
2.20.1
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