Messages in this thread Patch in this message | | | From | Andrey Smirnov <> | Subject | [PATCH v3 05/13] thermal: qoriq: Embed per-sensor data into struct qoriq_tmu_data | Date | Sun, 31 Mar 2019 21:14:10 -0700 |
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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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