From: Billy Tsai <billy_tsai@aspeedtech.com>
To: <jic23@kernel.org>, <knaack.h@gmx.de>, <lars@metafoo.de>,
<pmeerw@pmeerw.net>, <robh+dt@kernel.org>, <joel@jms.id.au>,
<andrew@aj.id.au>, <p.zabel@pengutronix.de>,
<billy_tsai@aspeedtech.com>, <alexandru.ardelean@analog.com>,
<linux-iio@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>
Cc: <BMC-SW@aspeedtech.com>
Subject: [PATCH 1/3] iio: adc: aspeed: Orgnaize and add the define of adc
Date: Tue, 13 Oct 2020 18:32:43 +0800 [thread overview]
Message-ID: <20201013103245.16723-2-billy_tsai@aspeedtech.com> (raw)
In-Reply-To: <20201013103245.16723-1-billy_tsai@aspeedtech.com>
This patch organizes the define of adc to multiple partitions
and adds the new bit field define for ast2600 driver.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
---
drivers/iio/adc/aspeed_adc.c | 42 ++++++++++++++++++++++++++++++++----
1 file changed, 38 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index 1e5375235cfe..ae400c4d6d40 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -21,23 +21,57 @@
#include <linux/iio/driver.h>
#include <linux/iopoll.h>
+/**********************************************************
+ * ADC feature define
+ *********************************************************/
#define ASPEED_RESOLUTION_BITS 10
#define ASPEED_CLOCKS_PER_SAMPLE 12
+/**********************************************************
+ * ADC HW register offset define
+ *********************************************************/
#define ASPEED_REG_ENGINE_CONTROL 0x00
#define ASPEED_REG_INTERRUPT_CONTROL 0x04
#define ASPEED_REG_VGA_DETECT_CONTROL 0x08
#define ASPEED_REG_CLOCK_CONTROL 0x0C
+#define ASPEED_REG_COMPENSATION_TRIM 0xC4
#define ASPEED_REG_MAX 0xC0
+/**********************************************************
+ * ADC register Bit field
+ *********************************************************/
+/*ENGINE_CONTROL */
+/* [0] */
+#define ASPEED_ENGINE_ENABLE BIT(0)
+/* [3:1] */
#define ASPEED_OPERATION_MODE_POWER_DOWN (0x0 << 1)
#define ASPEED_OPERATION_MODE_STANDBY (0x1 << 1)
#define ASPEED_OPERATION_MODE_NORMAL (0x7 << 1)
-
-#define ASPEED_ENGINE_ENABLE BIT(0)
-
+/* [4] */
+#define ASPEED_CTRL_COMPENSATION BIT(4)
+/* [5] */
+#define ASPEED_AUTOPENSATING BIT(5)
+/* [7:6] */
+#define ASPEED_REF_VOLTAGE_2500mV (0 << 6)
+#define ASPEED_REF_VOLTAGE_1200mV (1 << 6)
+#define ASPEED_REF_VOLTAGE_EXT_HIGH (2 << 6)
+#define ASPEED_REF_VOLTAGE_EXT_LOW (3 << 6)
+#define ASPEED_BATTERY_SENSING_VOL_DIVIDE_2_3 (0 << 6)
+#define ASPEED_BATTERY_SENSING_VOL_DIVIDE_1_3 (1 << 6)
+/* [8] */
#define ASPEED_ADC_CTRL_INIT_RDY BIT(8)
-
+/* [12] */
+#define ASPEED_ADC_CH7_VOLTAGE_NORMAL (0 << 12)
+#define ASPEED_ADC_CH7_VOLTAGE_BATTERY (1 << 12)
+/* [13] */
+#define ASPEED_ADC_EN_BATTERY_SENSING BIT(13)
+/* [31:16] */
+#define ASPEED_ADC_CTRL_CH_EN(n) (1 << (16 + n))
+#define ASPEED_ADC_CTRL_CH_EN_ALL GENMASK(31, 16)
+
+/**********************************************************
+ * Software setting
+ *********************************************************/
#define ASPEED_ADC_INIT_POLLING_TIME 500
#define ASPEED_ADC_INIT_TIMEOUT 500000
--
2.17.1
next prev parent reply other threads:[~2020-10-13 10:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-13 10:32 [PATCH 0/3] Make driver compatible with ast2600 Billy Tsai
2020-10-13 10:32 ` Billy Tsai [this message]
2020-10-18 10:22 ` [PATCH 1/3] iio: adc: aspeed: Orgnaize and add the define of adc Jonathan Cameron
2020-10-18 18:26 ` Andy Shevchenko
2020-10-13 10:32 ` [PATCH 2/3] iio: adc: aspeed: Modify driver for ast2600 Billy Tsai
2020-10-18 10:46 ` Jonathan Cameron
2020-10-13 10:32 ` [PATCH 3/3] iio: adc: aspeed: Setting ref_voltage in probe Billy Tsai
2020-10-16 17:16 ` Rob Herring
2020-10-18 10:55 ` Jonathan Cameron
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20201013103245.16723-2-billy_tsai@aspeedtech.com \
--to=billy_tsai@aspeedtech.com \
--cc=BMC-SW@aspeedtech.com \
--cc=alexandru.ardelean@analog.com \
--cc=andrew@aj.id.au \
--cc=devicetree@vger.kernel.org \
--cc=jic23@kernel.org \
--cc=joel@jms.id.au \
--cc=knaack.h@gmx.de \
--cc=lars@metafoo.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-aspeed@lists.ozlabs.org \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=p.zabel@pengutronix.de \
--cc=pmeerw@pmeerw.net \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).