From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/drivers/i2c/busses/i2c-synquacer.c | 28 +++++++++-------------------
1 files changed, 9 insertions(+), 19 deletions(-)
diff --git a/kernel/drivers/i2c/busses/i2c-synquacer.c b/kernel/drivers/i2c/busses/i2c-synquacer.c
index e47380b..e4026c5 100644
--- a/kernel/drivers/i2c/busses/i2c-synquacer.c
+++ b/kernel/drivers/i2c/busses/i2c-synquacer.c
@@ -67,10 +67,10 @@
/* STANDARD MODE frequency */
#define SYNQUACER_I2C_CLK_MASTER_STD(rate) \
- DIV_ROUND_UP(DIV_ROUND_UP((rate), 100000) - 2, 2)
+ DIV_ROUND_UP(DIV_ROUND_UP((rate), I2C_MAX_STANDARD_MODE_FREQ) - 2, 2)
/* FAST MODE frequency */
#define SYNQUACER_I2C_CLK_MASTER_FAST(rate) \
- DIV_ROUND_UP((DIV_ROUND_UP((rate), 400000) - 2) * 2, 3)
+ DIV_ROUND_UP((DIV_ROUND_UP((rate), I2C_MAX_FAST_MODE_FREQ) - 2) * 2, 3)
/* (clkrate <= 18000000) */
/* calculate the value of CS bits in CCR register on standard mode */
@@ -144,8 +144,6 @@
u32 timeout_ms;
enum i2c_state state;
struct i2c_adapter adapter;
-
- bool is_suspended;
};
static inline int is_lastmsg(struct synquacer_i2c *i2c)
@@ -316,9 +314,6 @@
unsigned long timeout;
int ret;
- if (i2c->is_suspended)
- return -EBUSY;
-
synquacer_i2c_hw_init(i2c);
bsr = readb(i2c->base + SYNQUACER_I2C_REG_BSR);
if (bsr & SYNQUACER_I2C_BSR_BB) {
@@ -403,8 +398,7 @@
if (i2c->state == STATE_READ)
goto prepare_read;
-
- /* fallthru */
+ fallthrough;
case STATE_WRITE:
if (bsr & SYNQUACER_I2C_BSR_LRB) {
@@ -531,7 +525,7 @@
.functionality = synquacer_i2c_functionality,
};
-static struct i2c_adapter synquacer_i2c_ops = {
+static const struct i2c_adapter synquacer_i2c_ops = {
.owner = THIS_MODULE,
.name = "synquacer_i2c-adapter",
.algo = &synquacer_i2c_algo,
@@ -541,7 +535,6 @@
static int synquacer_i2c_probe(struct platform_device *pdev)
{
struct synquacer_i2c *i2c;
- struct resource *r;
u32 bus_speed;
int ret;
@@ -558,7 +551,7 @@
&i2c->pclkrate);
i2c->pclk = devm_clk_get(&pdev->dev, "pclk");
- if (IS_ERR(i2c->pclk) && PTR_ERR(i2c->pclk) == -EPROBE_DEFER)
+ if (PTR_ERR(i2c->pclk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (!IS_ERR_OR_NULL(i2c->pclk)) {
dev_dbg(&pdev->dev, "clock source %p\n", i2c->pclk);
@@ -579,16 +572,13 @@
return -EINVAL;
}
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- i2c->base = devm_ioremap_resource(&pdev->dev, r);
+ i2c->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(i2c->base))
return PTR_ERR(i2c->base);
i2c->irq = platform_get_irq(pdev, 0);
- if (i2c->irq < 0) {
- dev_err(&pdev->dev, "no IRQ resource found\n");
- return -ENODEV;
- }
+ if (i2c->irq < 0)
+ return i2c->irq;
ret = devm_request_irq(&pdev->dev, i2c->irq, synquacer_i2c_isr,
0, dev_name(&pdev->dev), i2c);
@@ -607,7 +597,7 @@
i2c->adapter.nr = pdev->id;
init_completion(&i2c->completion);
- if (bus_speed < 400000)
+ if (bus_speed < I2C_MAX_FAST_MODE_FREQ)
i2c->speed_khz = SYNQUACER_I2C_SPEED_SM;
else
i2c->speed_khz = SYNQUACER_I2C_SPEED_FM;
--
Gitblit v1.6.2