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Subject[PATCH v2 05/10] soc: mediatek: cmdq: move the CMDQ_IRQ_MASK into cmdq driver data
Date
The interrupt mask and thread number has positive correlation,
so we move the CMDQ_IRQ_MASK into cmdq driver data and calculate
it by thread number.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
---
drivers/mailbox/mtk-cmdq-mailbox.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 909eb23..6db1e2d 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -17,7 +17,6 @@
#include <linux/of_device.h>

#define CMDQ_OP_CODE_MASK (0xff << CMDQ_OP_CODE_SHIFT)
-#define CMDQ_IRQ_MASK 0xffff
#define CMDQ_NUM_CMD(t) (t->cmd_buf_size / CMDQ_INST_SIZE)

#define CMDQ_CURR_IRQ_STATUS 0x10
@@ -71,6 +70,7 @@ struct cmdq {
void __iomem *base;
u32 irq;
u32 thread_nr;
+ u32 irq_mask;
struct cmdq_thread *thread;
struct clk *clock;
bool suspended;
@@ -284,11 +284,11 @@ static irqreturn_t cmdq_irq_handler(int irq, void *dev)
unsigned long irq_status, flags = 0L;
int bit;

- irq_status = readl(cmdq->base + CMDQ_CURR_IRQ_STATUS) & CMDQ_IRQ_MASK;
- if (!(irq_status ^ CMDQ_IRQ_MASK))
+ irq_status = readl(cmdq->base + CMDQ_CURR_IRQ_STATUS) & cmdq->irq_mask;
+ if (!(irq_status ^ cmdq->irq_mask))
return IRQ_NONE;

- for_each_clear_bit(bit, &irq_status, fls(CMDQ_IRQ_MASK)) {
+ for_each_clear_bit(bit, &irq_status, cmdq->thread_nr) {
struct cmdq_thread *thread = &cmdq->thread[bit];

spin_lock_irqsave(&thread->chan->lock, flags);
@@ -472,6 +472,9 @@ static int cmdq_probe(struct platform_device *pdev)
dev_err(dev, "failed to get irq\n");
return -EINVAL;
}
+
+ cmdq->thread_nr = (u32)(unsigned long)of_device_get_match_data(dev);
+ cmdq->irq_mask = GENMASK(cmdq->thread_nr - 1, 0);
err = devm_request_irq(dev, cmdq->irq, cmdq_irq_handler, IRQF_SHARED,
"mtk_cmdq", cmdq);
if (err < 0) {
@@ -488,7 +491,6 @@ static int cmdq_probe(struct platform_device *pdev)
return PTR_ERR(cmdq->clock);
}

- cmdq->thread_nr = (u32)(unsigned long)of_device_get_match_data(dev);
cmdq->mbox.dev = dev;
cmdq->mbox.chans = devm_kcalloc(dev, cmdq->thread_nr,
sizeof(*cmdq->mbox.chans), GFP_KERNEL);
--
1.9.1
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