[PATCH v4 12/16] drm: bridge: analogix/dp: add some rk3288 special registers setting

Yakir Yang
2015-09-01T06:09:17Z

RK3288 need some special registers setting, we can separate
them out by the dev_type of plat_data.

Signed-off-by: Yakir Yang <ykk@rock-chips.com>
---
Changes in v4: None
Changes in v3: None
Changes in v2:
- Fix compile failed dut to phy_pd_addr variable misspell error

drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 76 ++++++++++++++---------
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h | 12 ++++
2 files changed, 60 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
index 6a643be..15346fe 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
@@ -15,6 +15,8 @@
#include <linux/delay.h>
#include <linux/gpio.h>

+#include <drm/bridge/analogix_dp.h>
+
#include "analogix_dp_core.h"
#include "analogix_dp_reg.h"

@@ -72,6 +74,14 @@ void analogix_dp_init_analog_param(struct analogix_dp_device *dp)
reg = SEL_24M | TX_DVDD_BIT_1_0625V;
writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_2);

+ if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP)) {
+ writel(REF_CLK_24M, dp->reg_base + ANALOGIX_DP_PLL_REG_1);
+ writel(0x95, dp->reg_base + ANALOGIX_DP_PLL_REG_2);
+ writel(0x40, dp->reg_base + ANALOGIX_DP_PLL_REG_3);
+ writel(0x58, dp->reg_base + ANALOGIX_DP_PLL_REG_4);
+ writel(0x22, dp->reg_base + ANALOGIX_DP_PLL_REG_5);
+ }
+
reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_3);

@@ -206,81 +216,85 @@ void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
bool enable)
{
u32 reg;
+ u32 phy_pd_addr = ANALOGIX_DP_PHY_PD;
+
+ if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP))
+ phy_pd_addr = ANALOGIX_DP_PD;

switch (block) {
case AUX_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg |= AUX_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg &= ~AUX_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
}
break;
case CH0_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg |= CH0_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg &= ~CH0_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
}
break;
case CH1_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg |= CH1_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg &= ~CH1_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
}
break;
case CH2_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg |= CH2_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg &= ~CH2_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
}
break;
case CH3_BLOCK:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg |= CH3_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg &= ~CH3_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
}
break;
case ANALOG_TOTAL:
if (enable) {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg |= DP_PHY_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg = readl(dp->reg_base + phy_pd_addr);
reg &= ~DP_PHY_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
}
break;
case POWER_ALL:
if (enable) {
reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
CH1_PD | CH0_PD;
- writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(reg, dp->reg_base + phy_pd_addr);
} else {
- writel(0x00, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ writel(0x00, dp->reg_base + phy_pd_addr);
}
break;
default:
@@ -399,8 +413,14 @@ void analogix_dp_init_aux(struct analogix_dp_device *dp)
analogix_dp_reset_aux(dp);

/* Disable AUX transaction H/W retry */
- reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
- AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP))
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(0) |
+ AUX_HW_RETRY_COUNT_SEL(3) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ else
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) |
+ AUX_HW_RETRY_COUNT_SEL(0) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
writel(reg, dp->reg_base + ANALOGIX_DP_AUX_HW_RETRY_CTL);

/* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
index 2d878fd..21330aa 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
@@ -22,6 +22,14 @@
#define ANALOGIX_DP_VIDEO_CTL_8 0x3C
#define ANALOGIX_DP_VIDEO_CTL_10 0x44

+#define ANALOGIX_DP_PLL_REG_1 0xfc
+#define ANALOGIX_DP_PLL_REG_2 0x9e4
+#define ANALOGIX_DP_PLL_REG_3 0x9e8
+#define ANALOGIX_DP_PLL_REG_4 0x9ec
+#define ANALOGIX_DP_PLL_REG_5 0xa00
+
+#define ANALOGIX_DP_PD 0x12c
+
#define ANALOGIX_DP_LANE_MAP 0x35C

#define ANALOGIX_DP_ANALOG_CTL_1 0x370
@@ -154,6 +162,10 @@
#define VSYNC_POLARITY_CFG (0x1 << 1)
#define HSYNC_POLARITY_CFG (0x1 << 0)

+/* ANALOGIX_DP_PLL_REG_1 */
+#define REF_CLK_24M (0x1 << 1)
+#define REF_CLK_27M (0x0 << 1)
+
/* ANALOGIX_DP_LANE_MAP */
#define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
#define LANE3_MAP_LOGIC_LANE_1 (0x1 << 6)
--
2.1.2