[PATCH 05/11] media: ttpci: convert tasklets to use new tasklet_setup() API

From: Allen Pais
Date: Mon Aug 17 2020 - 04:33:25 EST


In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@xxxxxxxxx>
Signed-off-by: Allen Pais <allen.lkml@xxxxxxxxx>
---
drivers/media/pci/ttpci/av7110.c | 20 ++++++++++----------
drivers/media/pci/ttpci/budget-ci.c | 15 ++++++++-------
drivers/media/pci/ttpci/budget-core.c | 6 +++---
3 files changed, 21 insertions(+), 20 deletions(-)

diff --git a/drivers/media/pci/ttpci/av7110.c b/drivers/media/pci/ttpci/av7110.c
index bf36b1e22b63..885e6bc40c19 100644
--- a/drivers/media/pci/ttpci/av7110.c
+++ b/drivers/media/pci/ttpci/av7110.c
@@ -357,9 +357,9 @@ static inline void start_debi_dma(struct av7110 *av7110, int dir,
irdebi(av7110, DEBISWAB, addr, 0, len);
}

-static void debiirq(unsigned long cookie)
+static void debiirq(struct tasklet_struct *t)
{
- struct av7110 *av7110 = (struct av7110 *)cookie;
+ struct av7110 *av7110 = from_tasklet(av7110, t, debi_tasklet);
int type = av7110->debitype;
int handle = (type >> 8) & 0x1f;
unsigned int xfer = 0;
@@ -458,9 +458,9 @@ static void debiirq(unsigned long cookie)
}

/* irq from av7110 firmware writing the mailbox register in the DPRAM */
-static void gpioirq(unsigned long cookie)
+static void gpioirq(struct tasklet_struct *t)
{
- struct av7110 *av7110 = (struct av7110 *)cookie;
+ struct av7110 *av7110 = from_tasklet(av7110, t, gpio_tasklet);
u32 rxbuf, txbuf;
int len;

@@ -1230,9 +1230,9 @@ static int budget_stop_feed(struct dvb_demux_feed *feed)
return status;
}

-static void vpeirq(unsigned long cookie)
+static void vpeirq(struct tasklet_struct *t)
{
- struct av7110 *budget = (struct av7110 *)cookie;
+ struct av7110 *budget = from_tasklet(budget, t, vpe_tasklet);
u8 *mem = (u8 *) (budget->grabbing);
u32 olddma = budget->ttbp;
u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
@@ -2518,7 +2518,7 @@ static int av7110_attach(struct saa7146_dev* dev,
saa7146_write(dev, NUM_LINE_BYTE3, (TS_HEIGHT << 16) | TS_WIDTH);
saa7146_write(dev, MC2, MASK_04 | MASK_20);

- tasklet_init(&av7110->vpe_tasklet, vpeirq, (unsigned long) av7110);
+ tasklet_setup(&av7110->vpe_tasklet, vpeirq);

} else if (budgetpatch) {
spin_lock_init(&av7110->feedlock1);
@@ -2599,7 +2599,7 @@ static int av7110_attach(struct saa7146_dev* dev,
saa7146_write(dev, MC1, (MASK_13 | MASK_29));

/* end of budgetpatch register initialization */
- tasklet_init (&av7110->vpe_tasklet, vpeirq, (unsigned long) av7110);
+ tasklet_setup(&av7110->vpe_tasklet, vpeirq);
} else {
saa7146_write(dev, PCI_BT_V1, 0x1c00101f);
saa7146_write(dev, BCS_CTRL, 0x80400040);
@@ -2614,8 +2614,8 @@ static int av7110_attach(struct saa7146_dev* dev,
saa7146_write(dev, GPIO_CTRL, 0x000000);
}

- tasklet_init (&av7110->debi_tasklet, debiirq, (unsigned long) av7110);
- tasklet_init (&av7110->gpio_tasklet, gpioirq, (unsigned long) av7110);
+ tasklet_setup(&av7110->debi_tasklet, debiirq);
+ tasklet_setup(&av7110->gpio_tasklet, gpioirq);

mutex_init(&av7110->pid_mutex);

diff --git a/drivers/media/pci/ttpci/budget-ci.c b/drivers/media/pci/ttpci/budget-ci.c
index 77b102b8a013..d59d18647371 100644
--- a/drivers/media/pci/ttpci/budget-ci.c
+++ b/drivers/media/pci/ttpci/budget-ci.c
@@ -99,9 +99,10 @@ struct budget_ci {
u8 tuner_pll_address; /* used for philips_tdm1316l configs */
};

-static void msp430_ir_interrupt(unsigned long data)
+static void msp430_ir_interrupt(struct tasklet_struct *t)
{
- struct budget_ci *budget_ci = (struct budget_ci *) data;
+ struct budget_ci_ir *ir = from_tasklet(ir, t, msp430_irq_tasklet);
+ struct budget_ci *budget_ci = container_of(ir, typeof(*budget_ci), ir);
struct rc_dev *dev = budget_ci->ir.dev;
u32 command = ttpci_budget_debiread(&budget_ci->budget, DEBINOSWAP, DEBIADDR_IR, 2, 1, 0) >> 8;

@@ -229,8 +230,7 @@ static int msp430_ir_init(struct budget_ci *budget_ci)

budget_ci->ir.dev = dev;

- tasklet_init(&budget_ci->ir.msp430_irq_tasklet, msp430_ir_interrupt,
- (unsigned long) budget_ci);
+ tasklet_setup(&budget_ci->ir.msp430_irq_tasklet, msp430_ir_interrupt);

SAA7146_IER_ENABLE(saa, MASK_06);
saa7146_setgpio(saa, 3, SAA7146_GPIO_IRQHI);
@@ -348,9 +348,10 @@ static int ciintf_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
return 0;
}

-static void ciintf_interrupt(unsigned long data)
+static void ciintf_interrupt(struct tasklet_struct *t)
{
- struct budget_ci *budget_ci = (struct budget_ci *) data;
+ struct budget_ci *budget_ci = from_tasklet(budget_ci, t,
+ ciintf_irq_tasklet);
struct saa7146_dev *saa = budget_ci->budget.dev;
unsigned int flags;

@@ -491,7 +492,7 @@ static int ciintf_init(struct budget_ci *budget_ci)

// Setup CI slot IRQ
if (budget_ci->ci_irq) {
- tasklet_init(&budget_ci->ciintf_irq_tasklet, ciintf_interrupt, (unsigned long) budget_ci);
+ tasklet_setup(&budget_ci->ciintf_irq_tasklet, ciintf_interrupt);
if (budget_ci->slot_status != SLOTSTATUS_NONE) {
saa7146_setgpio(saa, 0, SAA7146_GPIO_IRQLO);
} else {
diff --git a/drivers/media/pci/ttpci/budget-core.c b/drivers/media/pci/ttpci/budget-core.c
index 293867b9e796..d405eea5c37f 100644
--- a/drivers/media/pci/ttpci/budget-core.c
+++ b/drivers/media/pci/ttpci/budget-core.c
@@ -171,9 +171,9 @@ static int budget_read_fe_status(struct dvb_frontend *fe,
return ret;
}

-static void vpeirq(unsigned long data)
+static void vpeirq(struct tasklet_struct *t)
{
- struct budget *budget = (struct budget *) data;
+ struct budget *budget = from_tasklet(budget, t, vpe_tasklet);
u8 *mem = (u8 *) (budget->grabbing);
u32 olddma = budget->ttbp;
u32 newdma = saa7146_read(budget->dev, PCI_VDP3);
@@ -519,7 +519,7 @@ int ttpci_budget_init(struct budget *budget, struct saa7146_dev *dev,
/* upload all */
saa7146_write(dev, GPIO_CTRL, 0x000000);

- tasklet_init(&budget->vpe_tasklet, vpeirq, (unsigned long) budget);
+ tasklet_setup(&budget->vpe_tasklet, vpeirq);

/* frontend power on */
if (bi->type != BUDGET_FS_ACTIVY)
--
2.17.1