From: alexander.levin@verizon.com
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>
Cc: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>,
Lorenzo Bianconi <lorenzo.bianconi@st.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
alexander.levin@verizon.com
Subject: [PATCH AUTOSEL for 4.14 22/60] iio: st_sensors: add register mask for status register
Date: Wed, 13 Dec 2017 01:55:15 +0000 [thread overview]
Message-ID: <20171213015455.6455-22-alexander.levin@verizon.com> (raw)
In-Reply-To: <20171213015455.6455-1-alexander.levin@verizon.com>
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
[ Upstream commit e72a060151e5bb673af24993665e270fc4f674a7 ]
Introduce register mask for data-ready status register since
pressure sensors (e.g. LPS22HB) export just two channels
(BIT(0) and BIT(1)) and BIT(2) is marked reserved while in
st_sensors_new_samples_available() value read from status register
is masked using 0x7.
Moreover do not mask status register using active_scan_mask since
now status value is properly masked and if the result is not zero the
interrupt has to be consumed by the driver. This fix an issue on LPS25H
and LPS331AP where channel definition is swapped respect to status
register.
Furthermore that change allows to properly support new devices
(e.g LIS2DW12) that report just ZYXDA (data-ready) field in status register
to figure out if the interrupt has been generated by the device.
Fixes: 97865fe41322 (iio: st_sensors: verify interrupt event to status)
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
drivers/iio/accel/st_accel_core.c | 35 +++++++++++++++++-----
drivers/iio/common/st_sensors/st_sensors_core.c | 2 +-
drivers/iio/common/st_sensors/st_sensors_trigger.c | 16 +++-------
drivers/iio/gyro/st_gyro_core.c | 15 ++++++++--
drivers/iio/magnetometer/st_magn_core.c | 10 +++++--
drivers/iio/pressure/st_pressure_core.c | 15 ++++++++--
include/linux/iio/common/st_sensors.h | 7 +++--
7 files changed, 70 insertions(+), 30 deletions(-)
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 752856b3a849..379de1829cdb 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -164,7 +164,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_int2 = 0x00,
.addr_ihl = 0x25,
.mask_ihl = 0x02,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.sim = {
.addr = 0x23,
@@ -236,7 +239,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_ihl = 0x80,
.addr_od = 0x22,
.mask_od = 0x40,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.sim = {
.addr = 0x23,
@@ -318,7 +324,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_int2 = 0x00,
.addr_ihl = 0x23,
.mask_ihl = 0x40,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
.ig1 = {
.en_addr = 0x23,
.en_mask = 0x08,
@@ -389,7 +398,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.drdy_irq = {
.addr = 0x21,
.mask_int1 = 0x04,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.sim = {
.addr = 0x21,
@@ -451,7 +463,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_ihl = 0x80,
.addr_od = 0x22,
.mask_od = 0x40,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.sim = {
.addr = 0x21,
@@ -569,7 +584,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.drdy_irq = {
.addr = 0x21,
.mask_int1 = 0x04,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.sim = {
.addr = 0x21,
@@ -640,7 +658,10 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.mask_int2 = 0x00,
.addr_ihl = 0x25,
.mask_ihl = 0x02,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.sim = {
.addr = 0x23,
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 02e833b14db0..34115f05d5c4 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -470,7 +470,7 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
* different one. Take into account irq status register
* to understand if irq trigger can be properly supported
*/
- if (sdata->sensor_settings->drdy_irq.addr_stat_drdy)
+ if (sdata->sensor_settings->drdy_irq.stat_drdy.addr)
sdata->hw_irq_trigger = enable;
return 0;
}
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index fa73e6795359..fdcc5a891958 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -31,7 +31,7 @@ static int st_sensors_new_samples_available(struct iio_dev *indio_dev,
int ret;
/* How would I know if I can't check it? */
- if (!sdata->sensor_settings->drdy_irq.addr_stat_drdy)
+ if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr)
return -EINVAL;
/* No scan mask, no interrupt */
@@ -39,23 +39,15 @@ static int st_sensors_new_samples_available(struct iio_dev *indio_dev,
return 0;
ret = sdata->tf->read_byte(&sdata->tb, sdata->dev,
- sdata->sensor_settings->drdy_irq.addr_stat_drdy,
+ sdata->sensor_settings->drdy_irq.stat_drdy.addr,
&status);
if (ret < 0) {
dev_err(sdata->dev,
"error checking samples available\n");
return ret;
}
- /*
- * the lower bits of .active_scan_mask[0] is directly mapped
- * to the channels on the sensor: either bit 0 for
- * one-dimensional sensors, or e.g. x,y,z for accelerometers,
- * gyroscopes or magnetometers. No sensor use more than 3
- * channels, so cut the other status bits here.
- */
- status &= 0x07;
- if (status & (u8)indio_dev->active_scan_mask[0])
+ if (status & sdata->sensor_settings->drdy_irq.stat_drdy.mask)
return 1;
return 0;
@@ -212,7 +204,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
* it was "our" interrupt.
*/
if (sdata->int_pin_open_drain &&
- sdata->sensor_settings->drdy_irq.addr_stat_drdy)
+ sdata->sensor_settings->drdy_irq.stat_drdy.addr)
irq_trig |= IRQF_SHARED;
err = request_threaded_irq(sdata->get_irq_data_ready(indio_dev),
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index e366422e8512..2536a8400c98 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -118,7 +118,10 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
* drain settings, but only for INT1 and not
* for the DRDY line on INT2.
*/
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.multi_read_bit = true,
.bootime = 2,
@@ -188,7 +191,10 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
* drain settings, but only for INT1 and not
* for the DRDY line on INT2.
*/
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.multi_read_bit = true,
.bootime = 2,
@@ -253,7 +259,10 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
* drain settings, but only for INT1 and not
* for the DRDY line on INT2.
*/
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.multi_read_bit = true,
.bootime = 2,
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 08aafba4481c..19031a7bce23 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -317,7 +317,10 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
},
.drdy_irq = {
/* drdy line is routed drdy pin */
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
},
.multi_read_bit = true,
.bootime = 2,
@@ -361,7 +364,10 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
.drdy_irq = {
.addr = 0x62,
.mask_int1 = 0x01,
- .addr_stat_drdy = 0x67,
+ .stat_drdy = {
+ .addr = 0x67,
+ .mask = 0x07,
+ },
},
.multi_read_bit = false,
.bootime = 2,
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 34611a8ea2ce..ea075fcd5a6f 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -287,7 +287,10 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.mask_ihl = 0x80,
.addr_od = 0x22,
.mask_od = 0x40,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x03,
+ },
},
.multi_read_bit = true,
.bootime = 2,
@@ -395,7 +398,10 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.mask_ihl = 0x80,
.addr_od = 0x22,
.mask_od = 0x40,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x03,
+ },
},
.multi_read_bit = true,
.bootime = 2,
@@ -454,7 +460,10 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.mask_ihl = 0x80,
.addr_od = 0x12,
.mask_od = 0x40,
- .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x03,
+ },
},
.multi_read_bit = false,
.bootime = 2,
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 7b0fa8b5c120..ce0ef1c0a30a 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -139,7 +139,7 @@ struct st_sensor_das {
* @mask_ihl: mask to enable/disable active low on the INT lines.
* @addr_od: address to enable/disable Open Drain on the INT lines.
* @mask_od: mask to enable/disable Open Drain on the INT lines.
- * @addr_stat_drdy: address to read status of DRDY (data ready) interrupt
+ * struct stat_drdy - status register of DRDY (data ready) interrupt.
* struct ig1 - represents the Interrupt Generator 1 of sensors.
* @en_addr: address of the enable ig1 register.
* @en_mask: mask to write the on/off value for enable.
@@ -152,7 +152,10 @@ struct st_sensor_data_ready_irq {
u8 mask_ihl;
u8 addr_od;
u8 mask_od;
- u8 addr_stat_drdy;
+ struct {
+ u8 addr;
+ u8 mask;
+ } stat_drdy;
struct {
u8 en_addr;
u8 en_mask;
--
2.11.0
next prev parent reply other threads:[~2017-12-13 3:01 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
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2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 02/60] drm: Add retries for lspcon mode detection alexander.levin
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2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 06/60] crypto: talitos - fix AEAD test failures alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 05/60] crypto: talitos - fix ctr-aes-talitos alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 04/60] clk: sunxi-ng: sun5i: Fix bit offset of audio PLL post-divider alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 07/60] crypto: talitos - fix memory corruption on SEC2 alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 11/60] kvm, mm: account kvm related kmem slabs to kmemcg alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 10/60] rtc: pl031: make interrupt optional alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 09/60] crypto: lrw - Fix an error handling path in 'create()' alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 08/60] crypto: crypto4xx - increase context and scatter ring buffer elements alexander.levin
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2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 12/60] net: phy: at803x: Change error to EINVAL for invalid MAC alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 13/60] PCI: Avoid bus reset if bridge itself is broken alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 14/60] scsi: cxgb4i: fix Tx skb leak alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 17/60] PM / OPP: Move error message to debug level alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 19/60] Bluetooth: avoid silent hci_bcm ACPI PM regression alexander.levin
2017-12-13 8:14 ` Johan Hovold
2017-12-13 13:37 ` alexander.levin
2017-12-13 14:05 ` Johan Hovold
2017-12-13 14:18 ` alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 16/60] PCI: Create SR-IOV virtfn/physfn links before attaching driver alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 18/60] igb: check memory allocation failure alexander.levin
2017-12-13 1:55 ` alexander.levin [this message]
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 20/60] kbuild: re-order the code to not parse unnecessary variables alexander.levin
2017-12-20 17:13 ` Greg KH
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 21/60] i40e: use the safe hash table iterator when deleting mac filters alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 23/60] ixgbe: fix use of uninitialized padding alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 24/60] IB/rxe: check for allocation failure on elem alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 26/60] md: always set THREAD_WAKEUP and wake up wqueue if thread existed alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 25/60] block,bfq: Disable writeback throttling alexander.levin
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2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 30/60] Bluetooth: hci_uart_set_flow_control: Fix NULL deref when using serdev alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 29/60] leds: pca955x: Don't invert requested value in pca955x_gpio_set_value() alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 28/60] ipv6: grab rt->rt6i_ref before allocating pcpu rt alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 31/60] Bluetooth: hci_bcm: Fix setting of irq trigger type alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 32/60] i40e/i40evf: spread CPU affinity hints across online CPUs only alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 33/60] PCI/AER: Report non-fatal errors only to the affected endpoint alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 34/60] tracing: Exclude 'generic fields' from histograms alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 37/60] ASoC: img-parallel-out: Add pm_runtime_get/put to set_fmt callback alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 35/60] percpu: don't forget to free the temporary struct pcpu_alloc_info alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 38/60] powerpc/xmon: Avoid tripping SMP hardlockup watchdog alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 36/60] ASoC: codecs: msm8916-wcd-analog: fix micbias level alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 41/60] ASoC: codecs: msm8916-wcd-analog: fix module autoload alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 39/60] powerpc/watchdog: Do not trigger SMP crash from touch_nmi_watchdog alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 40/60] sctp: silence warns on sctp_stream_init allocations alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 42/60] fm10k: fix mis-ordered parameters in declaration for .ndo_set_vf_bw alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 46/60] i40e: fix client notify of VF reset alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 45/60] scsi: lpfc: Fix warning messages when NVME_TARGET_FC not defined alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 44/60] scsi: lpfc: PLOGI failures during NPIV testing alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 43/60] scsi: lpfc: Fix secure firmware updates alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 49/60] fm10k: ensure we process SM mbx when processing VF mbx alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 47/60] vfio/pci: Virtualize Maximum Payload Size alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 48/60] ARM: exynos_defconfig: Enable UAS support for Odroid HC1 board alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 50/60] ibmvnic: Set state UP alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 51/60] net: ipv6: send NS for DAD when link operationally up alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 54/60] clk: sunxi-ng: sun6i: Rename HDMI DDC clock to avoid name collision alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 53/60] staging: greybus: light: Release memory obtained by kasprintf alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 52/60] RDMA/hns: Avoid NULL pointer exception alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 56/60] rtc: set the alarm to the next expiring timer alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 58/60] drm/vc4: Avoid using vrefresh==0 mode in DSI htotal math alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 55/60] tcp: fix under-evaluated ssthresh in TCP Vegas alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 57/60] cpuidle: fix broadcast control when broadcast can not be entered alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 59/60] IB/opa_vnic: Properly clear Mac Table Digest alexander.levin
2017-12-13 1:55 ` [PATCH AUTOSEL for 4.14 60/60] IB/opa_vnic: Properly return the total MACs in UC MAC list alexander.levin
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