media: dvb: earth-pt1: replace schedule_timeout with usleep_range
As described in Document/timers/timers-howto.txt, hrtimer-based delay should be used for small sleeps. Signed-off-by: Akihiro Tsukada <tskd08@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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41cb54e205
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@ -18,7 +18,10 @@
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*/
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/sched/signal.h>
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#include <linux/hrtimer.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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@ -321,7 +324,7 @@ static int pt1_unlock(struct pt1 *pt1)
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for (i = 0; i < 3; i++) {
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if (pt1_read_reg(pt1, 0) & 0x80000000)
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return 0;
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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}
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dev_err(&pt1->pdev->dev, "could not unlock\n");
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return -EIO;
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@ -335,7 +338,7 @@ static int pt1_reset_pci(struct pt1 *pt1)
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for (i = 0; i < 10; i++) {
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if (pt1_read_reg(pt1, 0) & 0x00000001)
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return 0;
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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}
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dev_err(&pt1->pdev->dev, "could not reset PCI\n");
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return -EIO;
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@ -349,7 +352,7 @@ static int pt1_reset_ram(struct pt1 *pt1)
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for (i = 0; i < 10; i++) {
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if (pt1_read_reg(pt1, 0) & 0x00000002)
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return 0;
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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}
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dev_err(&pt1->pdev->dev, "could not reset RAM\n");
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return -EIO;
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@ -366,7 +369,7 @@ static int pt1_do_enable_ram(struct pt1 *pt1)
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if ((pt1_read_reg(pt1, 0) & 0x00000004) != status)
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return 0;
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}
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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}
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dev_err(&pt1->pdev->dev, "could not enable RAM\n");
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return -EIO;
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@ -376,7 +379,7 @@ static int pt1_enable_ram(struct pt1 *pt1)
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{
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int i, ret;
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int phase;
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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phase = pt1->pdev->device == 0x211a ? 128 : 166;
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for (i = 0; i < phase; i++) {
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ret = pt1_do_enable_ram(pt1);
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@ -463,6 +466,9 @@ static int pt1_thread(void *data)
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struct pt1_buffer_page *page;
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bool was_frozen;
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#define PT1_FETCH_DELAY 10
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#define PT1_FETCH_DELAY_DELTA 2
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pt1 = data;
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set_freezable();
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@ -476,7 +482,13 @@ static int pt1_thread(void *data)
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page = pt1->tables[pt1->table_index].bufs[pt1->buf_index].page;
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if (!pt1_filter(pt1, page)) {
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schedule_timeout_interruptible((HZ + 999) / 1000);
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ktime_t delay;
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delay = PT1_FETCH_DELAY * NSEC_PER_MSEC;
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_hrtimeout_range(&delay,
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PT1_FETCH_DELAY_DELTA * NSEC_PER_MSEC,
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HRTIMER_MODE_REL);
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continue;
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}
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@ -712,7 +724,7 @@ pt1_update_power(struct pt1 *pt1)
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adap = pt1->adaps[i];
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switch (adap->voltage) {
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case SEC_VOLTAGE_13: /* actually 11V */
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bits |= 1 << 1;
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bits |= 1 << 2;
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break;
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case SEC_VOLTAGE_18: /* actually 15V */
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bits |= 1 << 1 | 1 << 2;
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@ -766,7 +778,7 @@ static int pt1_wakeup(struct dvb_frontend *fe)
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adap = container_of(fe->dvb, struct pt1_adapter, adap);
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adap->sleep = 0;
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pt1_update_power(adap->pt1);
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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ret = config_demod(adap->demod_i2c_client, adap->pt1->fe_clk);
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if (ret == 0 && adap->orig_init)
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@ -1073,7 +1085,7 @@ static int pt1_i2c_end(struct pt1 *pt1, int addr)
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do {
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if (signal_pending(current))
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return -EINTR;
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schedule_timeout_interruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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} while (pt1_read_reg(pt1, 0) & 0x00000080);
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return 0;
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}
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@ -1376,11 +1388,11 @@ static int pt1_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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pt1->power = 1;
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pt1_update_power(pt1);
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schedule_timeout_uninterruptible((HZ + 49) / 50);
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msleep(20);
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pt1->reset = 0;
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pt1_update_power(pt1);
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schedule_timeout_uninterruptible((HZ + 999) / 1000);
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usleep_range(1000, 2000);
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ret = pt1_init_frontends(pt1);
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if (ret < 0)
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