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media: spi: rk1608: load preisp firmware in parallel to write sensor global setting

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Change-Id: I13cf8ad712a22592f6af0236f0717c35c611003a
Signed-off-by: Hu Kejun <william.hu@rock-chips.com>
This commit is contained in:
Hu Kejun
2019-04-28 19:44:23 +08:00
committed by Tao Huang
parent ec14720445
commit d76ce67034
1 changed files with 28 additions and 3 deletions
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31
drivers/media/spi/rk1608.c
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@@ -17,6 +17,7 @@
#include <linux/of_gpio.h>
#include <linux/of_platform.h>
#include <linux/regulator/consumer.h>
#include <linux/completion.h>
#include <linux/rk-preisp.h>
#include <linux/rk-camera-module.h>
#include <media/v4l2-ctrls.h>
@@ -27,6 +28,12 @@
#define ENABLE_DMA_BUFFER 1
#define SPI_BUFSIZ max(32, SMP_CACHE_BYTES)
struct rk1608_power_work {
struct work_struct wk;
struct rk1608_state *pdata;
struct completion work_fin;
};
/**
* Rk1608 is used as the Pre-ISP to link on Soc, which mainly has two
* functions. One is to download the firmware of RK1608, and the other
@@ -868,16 +875,34 @@ int rk1608_set_power(struct rk1608_state *pdata, int on)
return 0;
}
static void rk1608_poweron_func(struct work_struct *work)
{
struct rk1608_power_work *pwork = (struct rk1608_power_work *)work;
rk1608_power_on(pwork->pdata);
complete(&pwork->work_fin);
}
static int rk1608_sensor_power(struct v4l2_subdev *sd, int on)
{
struct rk1608_state *pdata = to_state(sd);
struct rk1608_power_work work;
mutex_lock(&pdata->lock);
if (on) {
v4l2_subdev_call(pdata->sensor[sd->grp_id], core, s_power, on);
if (!pdata->power_count)
rk1608_power_on(pdata);
if (!pdata->power_count) {
INIT_WORK(&work.wk, rk1608_poweron_func);
init_completion(&work.work_fin);
work.pdata = pdata;
schedule_work(&work.wk);
v4l2_subdev_call(pdata->sensor[sd->grp_id],
core, s_power, on);
if (!wait_for_completion_timeout(&work.work_fin,
msecs_to_jiffies(1000)))
dev_err(pdata->dev,
"wait for preisp power on timeout!");
}
} else if (!on && pdata->power_count == 1) {
v4l2_subdev_call(pdata->sensor[sd->grp_id], core, s_power, on);
rk1608_power_off(pdata);