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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /drivers/spi/spi-lm70llp.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'drivers/spi/spi-lm70llp.c')
-rw-r--r--drivers/spi/spi-lm70llp.c43
1 files changed, 23 insertions, 20 deletions
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index ba72347cb..61ee0f426 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -14,6 +14,8 @@
* GNU General Public License for more details.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
@@ -23,11 +25,9 @@
#include <linux/sysfs.h>
#include <linux/workqueue.h>
-
#include <linux/spi/spi.h>
#include <linux/spi/spi_bitbang.h>
-
/*
* The LM70 communicates with a host processor using a 3-wire variant of
* the SPI/Microwire bus interface. This driver specifically supports an
@@ -88,7 +88,6 @@ struct spi_lm70llp {
/* REVISIT : ugly global ; provides "exclusive open" facility */
static struct spi_lm70llp *lm70llp;
-
/*-------------------------------------------------------------------*/
static inline struct spi_lm70llp *spidev_to_pp(struct spi_device *spi)
@@ -122,12 +121,14 @@ static inline void assertCS(struct spi_lm70llp *pp)
static inline void clkHigh(struct spi_lm70llp *pp)
{
u8 data = parport_read_data(pp->port);
+
parport_write_data(pp->port, data | SCLK);
}
static inline void clkLow(struct spi_lm70llp *pp)
{
u8 data = parport_read_data(pp->port);
+
parport_write_data(pp->port, data & ~SCLK);
}
@@ -166,8 +167,10 @@ static inline void setmosi(struct spi_device *s, int is_on)
static inline int getmiso(struct spi_device *s)
{
struct spi_lm70llp *pp = spidev_to_pp(s);
- return ((SIO == (parport_read_status(pp->port) & SIO)) ? 0 : 1 );
+
+ return ((SIO == (parport_read_status(pp->port) & SIO)) ? 0 : 1);
}
+
/*--------------------------------------------------------------------*/
#include "spi-bitbang-txrx.h"
@@ -196,11 +199,10 @@ static void spi_lm70llp_attach(struct parport *p)
struct spi_lm70llp *pp;
struct spi_master *master;
int status;
+ struct pardev_cb lm70llp_cb;
if (lm70llp) {
- printk(KERN_WARNING
- "%s: spi_lm70llp instance already loaded. Aborting.\n",
- DRVNAME);
+ pr_warn("spi_lm70llp instance already loaded. Aborting.\n");
return;
}
@@ -227,9 +229,11 @@ static void spi_lm70llp_attach(struct parport *p)
* Parport hookup
*/
pp->port = p;
- pd = parport_register_device(p, DRVNAME,
- NULL, NULL, NULL,
- PARPORT_FLAG_EXCL, pp);
+ memset(&lm70llp_cb, 0, sizeof(lm70llp_cb));
+ lm70llp_cb.private = pp;
+ lm70llp_cb.flags = PARPORT_FLAG_EXCL;
+ pd = parport_register_dev_model(p, DRVNAME, &lm70llp_cb, 0);
+
if (!pd) {
status = -ENOMEM;
goto out_free_master;
@@ -245,9 +249,8 @@ static void spi_lm70llp_attach(struct parport *p)
*/
status = spi_bitbang_start(&pp->bitbang);
if (status < 0) {
- printk(KERN_WARNING
- "%s: spi_bitbang_start failed with status %d\n",
- DRVNAME, status);
+ dev_warn(&pd->dev, "spi_bitbang_start failed with status %d\n",
+ status);
goto out_off_and_release;
}
@@ -272,9 +275,9 @@ static void spi_lm70llp_attach(struct parport *p)
pp->spidev_lm70 = spi_new_device(pp->bitbang.master, &pp->info);
if (pp->spidev_lm70)
dev_dbg(&pp->spidev_lm70->dev, "spidev_lm70 at %s\n",
- dev_name(&pp->spidev_lm70->dev));
+ dev_name(&pp->spidev_lm70->dev));
else {
- printk(KERN_WARNING "%s: spi_new_device failed\n", DRVNAME);
+ dev_warn(&pd->dev, "spi_new_device failed\n");
status = -ENODEV;
goto out_bitbang_stop;
}
@@ -293,9 +296,9 @@ out_off_and_release:
out_parport_unreg:
parport_unregister_device(pd);
out_free_master:
- (void) spi_master_put(master);
+ spi_master_put(master);
out_fail:
- pr_info("%s: spi_lm70llp probe fail, status %d\n", DRVNAME, status);
+ pr_info("spi_lm70llp probe fail, status %d\n", status);
}
static void spi_lm70llp_detach(struct parport *p)
@@ -314,16 +317,16 @@ static void spi_lm70llp_detach(struct parport *p)
parport_release(pp->pd);
parport_unregister_device(pp->pd);
- (void) spi_master_put(pp->bitbang.master);
+ spi_master_put(pp->bitbang.master);
lm70llp = NULL;
}
-
static struct parport_driver spi_lm70llp_drv = {
.name = DRVNAME,
- .attach = spi_lm70llp_attach,
+ .match_port = spi_lm70llp_attach,
.detach = spi_lm70llp_detach,
+ .devmodel = true,
};
static int __init init_spi_lm70llp(void)