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drm/bridge: analogix_dp: remove dead codes

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Change-Id: I8ec07028d911d48756fd5ce59ca4fd6e544230b5
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
This commit is contained in:
Wyon Bi
2018-09-28 11:26:24 +08:00
parent 289059c61b
commit b0c9700602
2 changed files with 0 additions and 93 deletions
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5
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
View File

@@ -35,11 +35,6 @@
#define to_dp(nm) container_of(nm, struct analogix_dp_device, nm)
struct bridge_init {
struct i2c_client *client;
struct device_node *node;
};
static void analogix_dp_init(struct analogix_dp_device *dp)
{
analogix_dp_init_analog_param(dp);

88
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
View File

@@ -479,94 +479,6 @@ void analogix_dp_enable_sw_function(struct analogix_dp_device *dp)
writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
}
int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp)
{
int reg;
int retval = 0;
int timeout_loop = 0;
/* Enable AUX CH operation */
reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
reg |= AUX_EN;
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
/* Is AUX CH command reply received? */
reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
while (!(reg & RPLY_RECEIV)) {
timeout_loop++;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
dev_err(dp->dev, "AUX CH command reply failed!\n");
return -ETIMEDOUT;
}
reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
usleep_range(10, 11);
}
/* Clear interrupt source for AUX CH command reply */
writel(RPLY_RECEIV, dp->reg_base + ANALOGIX_DP_INT_STA);
/* Clear interrupt source for AUX CH access error */
reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
if (reg & AUX_ERR) {
writel(AUX_ERR, dp->reg_base + ANALOGIX_DP_INT_STA);
return -EREMOTEIO;
}
/* Check AUX CH error access status */
reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_STA);
if ((reg & AUX_STATUS_MASK) != 0) {
dev_err(dp->dev, "AUX CH error happens: %d\n\n",
reg & AUX_STATUS_MASK);
return -EREMOTEIO;
}
return retval;
}
int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
unsigned int reg_addr,
unsigned char data)
{
u32 reg;
int i;
int retval;
for (i = 0; i < 3; i++) {
/* Clear AUX CH data buffer */
reg = BUF_CLR;
writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
/* Select DPCD device address */
reg = AUX_ADDR_7_0(reg_addr);
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
reg = AUX_ADDR_15_8(reg_addr);
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
reg = AUX_ADDR_19_16(reg_addr);
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
/* Write data buffer */
reg = (unsigned int)data;
writel(reg, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
/*
* Set DisplayPort transaction and write 1 byte
* If bit 3 is 1, DisplayPort transaction.
* If Bit 3 is 0, I2C transaction.
*/
reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
/* Start AUX transaction */
retval = analogix_dp_start_aux_transaction(dp);
if (retval == 0)
break;
dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
}
return retval;
}
void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype)
{
u32 reg;