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soc: swr-mstr: Change master interrupt to edge type

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Change master interrupt to edge type handling to avoid
recurring interrupts during ssr. Add loop logic to handle
concurrent edge type interrupts.

Change-Id: I3c789a24c035a6a00b1a2f515aa5328546ad80a9
Signed-off-by: Ramprasad Katkam <katkam@codeaurora.org>
This commit is contained in:
Ramprasad Katkam
2018-10-11 17:34:22 +05:30
parent 1ab95845cf
commit 833035127f
1 ha cambiato i file con 20 aggiunte e 6 eliminazioni
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26
soc/swr-mstr-ctrl.c
Vedi File

@@ -42,6 +42,7 @@
#define SWR_INVALID_PARAM 0xFF
#define SWRM_INTERRUPT_STATUS_MASK 0x1FDFD
/* pm runtime auto suspend timer in msecs */
static int auto_suspend_timer = SWR_AUTO_SUSPEND_DELAY * 1000;
module_param(auto_suspend_timer, int, 0664);
@@ -68,7 +69,7 @@ enum {
#define FALSE 0
#define SWRM_MAX_PORT_REG 120
#define SWRM_MAX_INIT_REG 10
#define SWRM_MAX_INIT_REG 11
#define SWR_MSTR_MAX_REG_ADDR 0x1740
#define SWR_MSTR_START_REG_ADDR 0x00
@@ -1265,7 +1266,8 @@ static irqreturn_t swr_mstr_interrupt(int irq, void *dev)
mutex_unlock(&swrm->reslock);
intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS);
intr_sts &= SWRM_INTERRUPT_STATUS_RMSK;
intr_sts &= SWRM_INTERRUPT_STATUS_MASK;
handle_irq:
for (i = 0; i < SWRM_INTERRUPT_MAX; i++) {
value = intr_sts & (1 << i);
if (!value)
@@ -1387,6 +1389,15 @@ static irqreturn_t swr_mstr_interrupt(int irq, void *dev)
}
swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, intr_sts);
swr_master_write(swrm, SWRM_INTERRUPT_CLEAR, 0x0);
intr_sts = swr_master_read(swrm, SWRM_INTERRUPT_STATUS);
intr_sts &= SWRM_INTERRUPT_STATUS_MASK;
if (intr_sts) {
dev_dbg(swrm->dev, "%s: new interrupt received\n", __func__);
goto handle_irq;
}
mutex_lock(&swrm->reslock);
swrm_clk_request(swrm, false);
mutex_unlock(&swrm->reslock);
@@ -1527,9 +1538,12 @@ static int swrm_master_init(struct swr_mstr_ctrl *swrm)
reg[len] = SWRM_MCP_BUS_CTRL_ADDR;
value[len++] = 0x2;
/* Set IRQ to LEVEL */
/* Set IRQ to PULSE */
reg[len] = SWRM_COMP_CFG_ADDR;
value[len++] = 0x01;
value[len++] = 0x02;
reg[len] = SWRM_COMP_CFG_ADDR;
value[len++] = 0x03;
reg[len] = SWRM_INTERRUPT_CLEAR;
value[len++] = 0xFFFFFFFF;
@@ -1539,7 +1553,7 @@ static int swrm_master_init(struct swr_mstr_ctrl *swrm)
value[len++] = 0x1FFFD;
reg[len] = SWR_MSTR_RX_SWRM_CPU_INTERRUPT_EN;
value[len++] = 0x1FDFD;
value[len++] = SWRM_INTERRUPT_STATUS_MASK;
swr_master_bulk_write(swrm, reg, value, len);
@@ -1788,7 +1802,7 @@ static int swrm_probe(struct platform_device *pdev)
ret = request_threaded_irq(swrm->irq, NULL,
swr_mstr_interrupt,
IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"swr_master_irq", swrm);
if (ret) {
dev_err(swrm->dev, "%s: Failed to request irq %d\n",