summaryrefslogtreecommitdiff
path: root/drivers/staging/iio/meter/ade7759.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 18:16:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-05 18:16:23 -0700
commitc6a677c6f37bb7abc85ba7e3465e82b9f7eb1d91 (patch)
tree9d0d4bb2e150837297cddc5be7f1b4950e9ab228 /drivers/staging/iio/meter/ade7759.c
parente87d51ac61f88ae44fe14b34abe08566032d726b (diff)
parent11270059e8d0b6f80801fac910c4ef751ca05c4c (diff)
Merge tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO updates from Greg KH: "Here is the big staging tree update for 4.12-rc1. It's a big one, adding about 350k new lines of crap^Wcode, mostly all in a big dump of media drivers from Intel. But there's other new drivers in here as well, yet-another-wifi driver, new IIO drivers, and a new crypto accelerator. We also deleted a bunch of stuff, mostly in patch cleanups, but also the Android ION code has shrunk a lot, and the Android low memory killer driver was finally deleted, much to the celebration of the -mm developers. All of these have been in linux-next with a few build issues that will show up when you merge to your tree" Merge conflicts in the new rtl8723bs driver (due to the wifi changes this merge window) handled as per linux-next, courtesy of Stephen Rothwell. * tag 'staging-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1182 commits) staging: fsl-mc/dpio: add cpu <--> LE conversion for dpaa2_fd staging: ks7010: remove line continuations in quoted strings staging: vt6656: use tabs instead of spaces staging: android: ion: Fix unnecessary initialization of static variable staging: media: atomisp: fix range checking on clk_num staging: media: atomisp: fix misspelled word in comment staging: media: atomisp: kmap() can't fail staging: atomisp: remove #ifdef for runtime PM functions staging: atomisp: satm include directory is gone atomisp: remove some more unused files atomisp: remove hmm_load/store/clear indirections atomisp: kill off mmgr_free atomisp: clean up the hmm init/cleanup indirections atomisp: handle allocation calls before init in the hmm layer staging: fsl-dpaa2/eth: Add maintainer for Ethernet driver staging: fsl-dpaa2/eth: Add TODO file staging: fsl-dpaa2/eth: Add trace points staging: fsl-dpaa2/eth: Add driver specific stats staging: fsl-dpaa2/eth: Add ethtool support staging: fsl-dpaa2/eth: Add Freescale DPAA2 Ethernet driver ...
Diffstat (limited to 'drivers/staging/iio/meter/ade7759.c')
-rw-r--r--drivers/staging/iio/meter/ade7759.c74
1 files changed, 61 insertions, 13 deletions
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index 944ee3401029..1691760339da 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -21,7 +21,55 @@
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include "meter.h"
-#include "ade7759.h"
+
+#define ADE7759_WAVEFORM 0x01
+#define ADE7759_AENERGY 0x02
+#define ADE7759_RSTENERGY 0x03
+#define ADE7759_STATUS 0x04
+#define ADE7759_RSTSTATUS 0x05
+#define ADE7759_MODE 0x06
+#define ADE7759_CFDEN 0x07
+#define ADE7759_CH1OS 0x08
+#define ADE7759_CH2OS 0x09
+#define ADE7759_GAIN 0x0A
+#define ADE7759_APGAIN 0x0B
+#define ADE7759_PHCAL 0x0C
+#define ADE7759_APOS 0x0D
+#define ADE7759_ZXTOUT 0x0E
+#define ADE7759_SAGCYC 0x0F
+#define ADE7759_IRQEN 0x10
+#define ADE7759_SAGLVL 0x11
+#define ADE7759_TEMP 0x12
+#define ADE7759_LINECYC 0x13
+#define ADE7759_LENERGY 0x14
+#define ADE7759_CFNUM 0x15
+#define ADE7759_CHKSUM 0x1E
+#define ADE7759_DIEREV 0x1F
+
+#define ADE7759_READ_REG(a) a
+#define ADE7759_WRITE_REG(a) ((a) | 0x80)
+
+#define ADE7759_MAX_TX 6
+#define ADE7759_MAX_RX 6
+#define ADE7759_STARTUP_DELAY 1000
+
+#define ADE7759_SPI_SLOW (u32)(300 * 1000)
+#define ADE7759_SPI_BURST (u32)(1000 * 1000)
+#define ADE7759_SPI_FAST (u32)(2000 * 1000)
+
+/**
+ * struct ade7759_state - device instance specific data
+ * @us: actual spi_device
+ * @buf_lock: mutex to protect tx and rx
+ * @tx: transmit buffer
+ * @rx: receive buffer
+ **/
+struct ade7759_state {
+ struct spi_device *us;
+ struct mutex buf_lock;
+ u8 tx[ADE7759_MAX_TX] ____cacheline_aligned;
+ u8 rx[ADE7759_MAX_RX];
+};
static int ade7759_spi_write_reg_8(struct device *dev,
u8 reg_address,
@@ -231,49 +279,49 @@ static int ade7759_reset(struct device *dev)
}
static IIO_DEV_ATTR_AENERGY(ade7759_read_40bit, ADE7759_AENERGY);
-static IIO_DEV_ATTR_CFDEN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFDEN(0644,
ade7759_read_16bit,
ade7759_write_16bit,
ADE7759_CFDEN);
-static IIO_DEV_ATTR_CFNUM(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CFNUM(0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_CFNUM);
static IIO_DEV_ATTR_CHKSUM(ade7759_read_8bit, ADE7759_CHKSUM);
-static IIO_DEV_ATTR_PHCAL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_PHCAL(0644,
ade7759_read_16bit,
ade7759_write_16bit,
ADE7759_PHCAL);
-static IIO_DEV_ATTR_APOS(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_APOS(0644,
ade7759_read_16bit,
ade7759_write_16bit,
ADE7759_APOS);
-static IIO_DEV_ATTR_SAGCYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAGCYC(0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_SAGCYC);
-static IIO_DEV_ATTR_SAGLVL(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAGLVL(0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_SAGLVL);
-static IIO_DEV_ATTR_LINECYC(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_LINECYC(0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_LINECYC);
static IIO_DEV_ATTR_LENERGY(ade7759_read_40bit, ADE7759_LENERGY);
-static IIO_DEV_ATTR_PGA_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_PGA_GAIN(0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_GAIN);
-static IIO_DEV_ATTR_ACTIVE_POWER_GAIN(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_ACTIVE_POWER_GAIN(0644,
ade7759_read_16bit,
ade7759_write_16bit,
ADE7759_APGAIN);
-static IIO_DEV_ATTR_CH_OFF(1, S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CH_OFF(1, 0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_CH1OS);
-static IIO_DEV_ATTR_CH_OFF(2, S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_CH_OFF(2, 0644,
ade7759_read_8bit,
ade7759_write_8bit,
ADE7759_CH2OS);
@@ -410,7 +458,7 @@ static IIO_DEV_ATTR_TEMP_RAW(ade7759_read_8bit);
static IIO_CONST_ATTR(in_temp_offset, "70 C");
static IIO_CONST_ATTR(in_temp_scale, "1 C");
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
+static IIO_DEV_ATTR_SAMP_FREQ(0644,
ade7759_read_frequency,
ade7759_write_frequency);