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Groups > linux.kernel > #1396322
| From | Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/7] ir-rx51: Fix build after multiarch changes broke it |
| Date | 2016-05-07 17:30 +0200 |
| Message-ID | <rwcl5-3SB-19@gated-at.bofh.it> (permalink) |
| References | <rwcl4-3SB-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Tony Lindgren <tony@atomide.com>
The ir-rx51 driver for n900 has been disabled since the multiarch
changes as plat include directory no longer is SoC specific.
Let's fix it with minimal changes to pass the dmtimer calls in
pdata. Then the following changes can be done while things can
be tested to be working for each change:
1. Change the non-pwm dmtimer to use just hrtimer if possible
2. Change the pwm dmtimer to use Linux PWM API with the new
drivers/pwm/pwm-omap-dmtimer.c and remove the direct calls
to dmtimer functions
3. Parse configuration from device tree and drop the pdata
Note compilation of this depends on the previous patch
"ARM: OMAP2+: Add more functions to pwm pdata for ir-rx51".
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
drivers/media/rc/Kconfig | 2 +-
drivers/media/rc/ir-rx51.c | 99 +++++++++++++++++++++++++---------------------
2 files changed, 54 insertions(+), 47 deletions(-)
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index bd4d685..370e16e 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -336,7 +336,7 @@ config IR_TTUSBIR
config IR_RX51
tristate "Nokia N900 IR transmitter diode"
- depends on OMAP_DM_TIMER && ARCH_OMAP2PLUS && LIRC && !ARCH_MULTIPLATFORM
+ depends on OMAP_DM_TIMER && PWM_OMAP_DMTIMER && ARCH_OMAP2PLUS && LIRC
---help---
Say Y or M here if you want to enable support for the IR
transmitter diode built in the Nokia N900 (RX51) device.
diff --git a/drivers/media/rc/ir-rx51.c b/drivers/media/rc/ir-rx51.c
index 4e1711a..da839c3 100644
--- a/drivers/media/rc/ir-rx51.c
+++ b/drivers/media/rc/ir-rx51.c
@@ -19,6 +19,7 @@
*
*/
+#include <linux/clk.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/uaccess.h>
@@ -26,11 +27,9 @@
#include <linux/sched.h>
#include <linux/wait.h>
-#include <plat/dmtimer.h>
-#include <plat/clock.h>
-
#include <media/lirc.h>
#include <media/lirc_dev.h>
+#include <linux/platform_data/pwm_omap_dmtimer.h>
#include <linux/platform_data/media/ir-rx51.h>
#define LIRC_RX51_DRIVER_FEATURES (LIRC_CAN_SET_SEND_DUTY_CYCLE | \
@@ -44,8 +43,9 @@
#define TIMER_MAX_VALUE 0xffffffff
struct lirc_rx51 {
- struct omap_dm_timer *pwm_timer;
- struct omap_dm_timer *pulse_timer;
+ pwm_omap_dmtimer *pwm_timer;
+ pwm_omap_dmtimer *pulse_timer;
+ struct pwm_omap_dmtimer_pdata *dmtimer;
struct device *dev;
struct lirc_rx51_platform_data *pdata;
wait_queue_head_t wqueue;
@@ -63,14 +63,14 @@ struct lirc_rx51 {
static void lirc_rx51_on(struct lirc_rx51 *lirc_rx51)
{
- omap_dm_timer_set_pwm(lirc_rx51->pwm_timer, 0, 1,
- OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE);
+ lirc_rx51->dmtimer->set_pwm(lirc_rx51->pwm_timer, 0, 1,
+ PWM_OMAP_DMTIMER_TRIGGER_OVERFLOW_AND_COMPARE);
}
static void lirc_rx51_off(struct lirc_rx51 *lirc_rx51)
{
- omap_dm_timer_set_pwm(lirc_rx51->pwm_timer, 0, 1,
- OMAP_TIMER_TRIGGER_NONE);
+ lirc_rx51->dmtimer->set_pwm(lirc_rx51->pwm_timer, 0, 1,
+ PWM_OMAP_DMTIMER_TRIGGER_NONE);
}
static int init_timing_params(struct lirc_rx51 *lirc_rx51)
@@ -79,12 +79,12 @@ static int init_timing_params(struct lirc_rx51 *lirc_rx51)
load = -(lirc_rx51->fclk_khz * 1000 / lirc_rx51->freq);
match = -(lirc_rx51->duty_cycle * -load / 100);
- omap_dm_timer_set_load(lirc_rx51->pwm_timer, 1, load);
- omap_dm_timer_set_match(lirc_rx51->pwm_timer, 1, match);
- omap_dm_timer_write_counter(lirc_rx51->pwm_timer, TIMER_MAX_VALUE - 2);
- omap_dm_timer_start(lirc_rx51->pwm_timer);
- omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);
- omap_dm_timer_start(lirc_rx51->pulse_timer);
+ lirc_rx51->dmtimer->set_load(lirc_rx51->pwm_timer, 1, load);
+ lirc_rx51->dmtimer->set_match(lirc_rx51->pwm_timer, 1, match);
+ lirc_rx51->dmtimer->write_counter(lirc_rx51->pwm_timer, TIMER_MAX_VALUE - 2);
+ lirc_rx51->dmtimer->start(lirc_rx51->pwm_timer);
+ lirc_rx51->dmtimer->set_int_enable(lirc_rx51->pulse_timer, 0);
+ lirc_rx51->dmtimer->start(lirc_rx51->pulse_timer);
lirc_rx51->match = 0;
@@ -100,15 +100,15 @@ static int pulse_timer_set_timeout(struct lirc_rx51 *lirc_rx51, int usec)
BUG_ON(usec < 0);
if (lirc_rx51->match == 0)
- counter = omap_dm_timer_read_counter(lirc_rx51->pulse_timer);
+ counter = lirc_rx51->dmtimer->read_counter(lirc_rx51->pulse_timer);
else
counter = lirc_rx51->match;
counter += (u32)(lirc_rx51->fclk_khz * usec / (1000));
- omap_dm_timer_set_match(lirc_rx51->pulse_timer, 1, counter);
- omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer,
- OMAP_TIMER_INT_MATCH);
- if (tics_after(omap_dm_timer_read_counter(lirc_rx51->pulse_timer),
+ lirc_rx51->dmtimer->set_match(lirc_rx51->pulse_timer, 1, counter);
+ lirc_rx51->dmtimer->set_int_enable(lirc_rx51->pulse_timer,
+ PWM_OMAP_DMTIMER_INT_MATCH);
+ if (tics_after(lirc_rx51->dmtimer->read_counter(lirc_rx51->pulse_timer),
counter)) {
return 1;
}
@@ -120,18 +120,18 @@ static irqreturn_t lirc_rx51_interrupt_handler(int irq, void *ptr)
unsigned int retval;
struct lirc_rx51 *lirc_rx51 = ptr;
- retval = omap_dm_timer_read_status(lirc_rx51->pulse_timer);
+ retval = lirc_rx51->dmtimer->read_status(lirc_rx51->pulse_timer);
if (!retval)
return IRQ_NONE;
- if (retval & ~OMAP_TIMER_INT_MATCH)
+ if (retval & ~PWM_OMAP_DMTIMER_INT_MATCH)
dev_err_ratelimited(lirc_rx51->dev,
": Unexpected interrupt source: %x\n", retval);
- omap_dm_timer_write_status(lirc_rx51->pulse_timer,
- OMAP_TIMER_INT_MATCH |
- OMAP_TIMER_INT_OVERFLOW |
- OMAP_TIMER_INT_CAPTURE);
+ lirc_rx51->dmtimer->write_status(lirc_rx51->pulse_timer,
+ PWM_OMAP_DMTIMER_INT_MATCH |
+ PWM_OMAP_DMTIMER_INT_OVERFLOW |
+ PWM_OMAP_DMTIMER_INT_CAPTURE);
if (lirc_rx51->wbuf_index < 0) {
dev_err_ratelimited(lirc_rx51->dev,
": BUG wbuf_index has value of %i\n",
@@ -165,9 +165,9 @@ end:
/* Stop TX here */
lirc_rx51_off(lirc_rx51);
lirc_rx51->wbuf_index = -1;
- omap_dm_timer_stop(lirc_rx51->pwm_timer);
- omap_dm_timer_stop(lirc_rx51->pulse_timer);
- omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);
+ lirc_rx51->dmtimer->stop(lirc_rx51->pwm_timer);
+ lirc_rx51->dmtimer->stop(lirc_rx51->pulse_timer);
+ lirc_rx51->dmtimer->set_int_enable(lirc_rx51->pulse_timer, 0);
wake_up_interruptible(&lirc_rx51->wqueue);
return IRQ_HANDLED;
@@ -178,28 +178,29 @@ static int lirc_rx51_init_port(struct lirc_rx51 *lirc_rx51)
struct clk *clk_fclk;
int retval, pwm_timer = lirc_rx51->pwm_timer_num;
- lirc_rx51->pwm_timer = omap_dm_timer_request_specific(pwm_timer);
+ lirc_rx51->pwm_timer = lirc_rx51->dmtimer->request_specific(pwm_timer);
if (lirc_rx51->pwm_timer == NULL) {
dev_err(lirc_rx51->dev, ": Error requesting GPT%d timer\n",
pwm_timer);
return -EBUSY;
}
- lirc_rx51->pulse_timer = omap_dm_timer_request();
+ lirc_rx51->pulse_timer = lirc_rx51->dmtimer->request();
if (lirc_rx51->pulse_timer == NULL) {
dev_err(lirc_rx51->dev, ": Error requesting pulse timer\n");
retval = -EBUSY;
goto err1;
}
- omap_dm_timer_set_source(lirc_rx51->pwm_timer, OMAP_TIMER_SRC_SYS_CLK);
- omap_dm_timer_set_source(lirc_rx51->pulse_timer,
- OMAP_TIMER_SRC_SYS_CLK);
+ lirc_rx51->dmtimer->set_source(lirc_rx51->pwm_timer,
+ PWM_OMAP_DMTIMER_SRC_SYS_CLK);
+ lirc_rx51->dmtimer->set_source(lirc_rx51->pulse_timer,
+ PWM_OMAP_DMTIMER_SRC_SYS_CLK);
- omap_dm_timer_enable(lirc_rx51->pwm_timer);
- omap_dm_timer_enable(lirc_rx51->pulse_timer);
+ lirc_rx51->dmtimer->enable(lirc_rx51->pwm_timer);
+ lirc_rx51->dmtimer->enable(lirc_rx51->pulse_timer);
- lirc_rx51->irq_num = omap_dm_timer_get_irq(lirc_rx51->pulse_timer);
+ lirc_rx51->irq_num = lirc_rx51->dmtimer->get_irq(lirc_rx51->pulse_timer);
retval = request_irq(lirc_rx51->irq_num, lirc_rx51_interrupt_handler,
IRQF_SHARED, "lirc_pulse_timer", lirc_rx51);
if (retval) {
@@ -207,28 +208,28 @@ static int lirc_rx51_init_port(struct lirc_rx51 *lirc_rx51)
goto err2;
}
- clk_fclk = omap_dm_timer_get_fclk(lirc_rx51->pwm_timer);
- lirc_rx51->fclk_khz = clk_fclk->rate / 1000;
+ clk_fclk = lirc_rx51->dmtimer->get_fclk(lirc_rx51->pwm_timer);
+ lirc_rx51->fclk_khz = clk_get_rate(clk_fclk) / 1000;
return 0;
err2:
- omap_dm_timer_free(lirc_rx51->pulse_timer);
+ lirc_rx51->dmtimer->free(lirc_rx51->pulse_timer);
err1:
- omap_dm_timer_free(lirc_rx51->pwm_timer);
+ lirc_rx51->dmtimer->free(lirc_rx51->pwm_timer);
return retval;
}
static int lirc_rx51_free_port(struct lirc_rx51 *lirc_rx51)
{
- omap_dm_timer_set_int_enable(lirc_rx51->pulse_timer, 0);
+ lirc_rx51->dmtimer->set_int_enable(lirc_rx51->pulse_timer, 0);
free_irq(lirc_rx51->irq_num, lirc_rx51);
lirc_rx51_off(lirc_rx51);
- omap_dm_timer_disable(lirc_rx51->pwm_timer);
- omap_dm_timer_disable(lirc_rx51->pulse_timer);
- omap_dm_timer_free(lirc_rx51->pwm_timer);
- omap_dm_timer_free(lirc_rx51->pulse_timer);
+ lirc_rx51->dmtimer->disable(lirc_rx51->pwm_timer);
+ lirc_rx51->dmtimer->disable(lirc_rx51->pulse_timer);
+ lirc_rx51->dmtimer->free(lirc_rx51->pwm_timer);
+ lirc_rx51->dmtimer->free(lirc_rx51->pulse_timer);
lirc_rx51->wbuf_index = -1;
return 0;
@@ -446,7 +447,13 @@ static int lirc_rx51_probe(struct platform_device *dev)
{
lirc_rx51_driver.features = LIRC_RX51_DRIVER_FEATURES;
lirc_rx51.pdata = dev->dev.platform_data;
+ if (!lirc_rx51.pdata->dmtimer) {
+ dev_err(&dev->dev, "no dmtimer?\n");
+ return -ENODEV;
+ }
+
lirc_rx51.pwm_timer_num = lirc_rx51.pdata->pwm_timer;
+ lirc_rx51.dmtimer = lirc_rx51.pdata->dmtimer;
lirc_rx51.dev = &dev->dev;
lirc_rx51_driver.dev = &dev->dev;
lirc_rx51_driver.minor = lirc_register_driver(&lirc_rx51_driver);
--
1.9.1
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 0/7] ir-rx51 driver fixes Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
[PATCH 3/7] [media] ir-rx51: use PWM framework instead of OMAP dmtimer Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
[PATCH 4/7] [media] ir-rx51: add DT support to driver Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
Re: [PATCH 4/7] [media] ir-rx51: add DT support to driver Rob Herring <robh@kernel.org> - 2016-05-09 22:10 +0200
Re: [PATCH 4/7] [media] ir-rx51: add DT support to driver Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-09 23:00 +0200
Re: [PATCH 4/7] [media] ir-rx51: add DT support to driver Rob Herring <robh@kernel.org> - 2016-05-09 23:10 +0200
Re: [PATCH 4/7] [media] ir-rx51: add DT support to driver Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-10 00:10 +0200
Re: [PATCH 4/7] [media] ir-rx51: add DT support to driver Sebastian Reichel <sre@kernel.org> - 2016-05-10 04:20 +0200
Re: [PATCH 4/7] [media] ir-rx51: add DT support to driver Rob Herring <robh@kernel.org> - 2016-05-11 16:20 +0200
[PATCH 6/7] [media] ir-rx51: use hrtimer instead of dmtimer Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
[PATCH 5/7] ARM: OMAP: dmtimer: Do not call PM runtime functions when not needed. Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
Re: [PATCH 5/7] ARM: OMAP: dmtimer: Do not call PM runtime functions when not needed. Tony Lindgren <tony@atomide.com> - 2016-05-09 21:40 +0200
Re: [PATCH 5/7] ARM: OMAP: dmtimer: Do not call PM runtime functions when not needed. Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-09 23:00 +0200
[PATCH 2/7] pwm: omap-dmtimer: Allow for setting dmtimer clock source Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
Re: [PATCH 2/7] pwm: omap-dmtimer: Allow for setting dmtimer clock source Rob Herring <robh@kernel.org> - 2016-05-09 22:10 +0200
[PATCH 1/7] ir-rx51: Fix build after multiarch changes broke it Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
[PATCH 7/7] ARM: dts: n900: enable lirc-rx51 driver Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2016-05-07 17:30 +0200
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