[PATCH 1/4] media: si2168: use bits instead of bool for flags

From: Mauro Carvalho Chehab
Date: Fri Oct 04 2019 - 09:15:36 EST


Using bool on struct is not recommended, as it wastes lots of
space. So, instead, let's use bits.

While here, convert the comments to kernel-doc format.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
---
drivers/media/dvb-frontends/si2168.h | 47 +++++++++++++----------
drivers/media/dvb-frontends/si2168_priv.h | 10 ++---
2 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/drivers/media/dvb-frontends/si2168.h b/drivers/media/dvb-frontends/si2168.h
index 50dccb394efa..ecd21adf8950 100644
--- a/drivers/media/dvb-frontends/si2168.h
+++ b/drivers/media/dvb-frontends/si2168.h
@@ -9,38 +9,43 @@
#define SI2168_H

#include <linux/dvb/frontend.h>
-/*
- * I2C address
- * 0x64
+/**
+ * struct si2168_config - configuration parameters for si2168
+ *
+ * @fe:
+ * frontend returned by driver
+ * @i2c_adapter:
+ * tuner I2C adapter returned by driver
+ * @ts_mode:
+ * Transport Stream mode. Can be:
+ * - %SI2168_TS_PARALLEL
+ * - %SI2168_TS_SERIAL
+ * - %SI2168_TS_TRISTATE
+ * - %SI2168_TS_CLK_MANUAL
+ * @ts_clock_inv:
+ * TS clock inverted
+ * @ts_clock_gapped:
+ * TS clock gapped
+ * @spectral_inversion:
+ * Inverted spectrum
+ *
+ * Note:
+ * The I2C address of this demod is 0x64.
*/
struct si2168_config {
- /*
- * frontend
- * returned by driver
- */
struct dvb_frontend **fe;
-
- /*
- * tuner I2C adapter
- * returned by driver
- */
struct i2c_adapter **i2c_adapter;

- /* TS mode */
#define SI2168_TS_PARALLEL 0x06
#define SI2168_TS_SERIAL 0x03
#define SI2168_TS_TRISTATE 0x00
#define SI2168_TS_CLK_MANUAL 0x20
u8 ts_mode;

- /* TS clock inverted */
- bool ts_clock_inv;
-
- /* TS clock gapped */
- bool ts_clock_gapped;
-
- /* Inverted spectrum */
- bool spectral_inversion;
+ /* Flags */
+ unsigned int ts_clock_inv:1;
+ unsigned int ts_clock_gapped:1;
+ unsigned int spectral_inversion:1;
};

#endif
diff --git a/drivers/media/dvb-frontends/si2168_priv.h b/drivers/media/dvb-frontends/si2168_priv.h
index 804d5b30c697..18bea5222082 100644
--- a/drivers/media/dvb-frontends/si2168_priv.h
+++ b/drivers/media/dvb-frontends/si2168_priv.h
@@ -34,12 +34,12 @@ struct si2168_dev {
unsigned int chip_id;
unsigned int version;
const char *firmware_name;
- bool active;
- bool warm;
u8 ts_mode;
- bool ts_clock_inv;
- bool ts_clock_gapped;
- bool spectral_inversion;
+ unsigned int active:1;
+ unsigned int warm:1;
+ unsigned int ts_clock_inv:1;
+ unsigned int ts_clock_gapped:1;
+ unsigned int spectral_inversion:1;
};

/* firmware command struct */
--
2.21.0