phy: rockchip-inno-hdmi-phy: support rk3328 hdmi phy

RK3328 hdmi phy is an upgraded version of 3228 hdmi phy, with
a completely different register layout. It improves physical
and antistatic capabilities.

It's max output bandwidth is same as rk3228 hdmi phy, optimized
up to 3.72Gbps per TMDS link.

Change-Id: I03c718c49e44cfeaa113e3ed07eec7055b4380cc
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
This commit is contained in:
Zheng Yang 2017-07-11 16:03:48 +08:00 committed by Huang, Tao
parent 0782841cc7
commit 95843d5e61
2 changed files with 608 additions and 211 deletions

View File

@ -1,7 +1,8 @@
ROCKCHIP HDMI PHY WITH INNO IP BLOCK
Required properties:
- compatible : should be "rockchip,rk3228-hdmi-phy";
- compatible : "rockchip,rk3228-hdmi-phy",
"rockchip,rk3328-hdmi-phy";
- reg : the address offset of register for hdmi phy configuration.
- #phy-cells : must be 0. See ./phy-bindings.txt for details.
- clocks and clock-names:

View File

@ -23,6 +23,7 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/rockchip/cpu.h>
#include <linux/phy/phy.h>
#define INNO_HDMI_PHY_TIMEOUT_LOOP_COUNT 1000
@ -147,10 +148,23 @@
#define TMDS_DATA_CH1_OUTPUT_SWING(x) UPDATE(x, 7, 4)
#define TMDS_DATA_CH0_OUTPUT_SWING(x) UPDATE(x, 3, 0)
enum inno_hdmi_phy_type {
INNO_HDMI_PHY_RK3228,
INNO_HDMI_PHY_RK3328
};
struct inno_hdmi_phy_drv_data;
struct inno_hdmi_phy {
struct device *dev;
struct regmap *regmap;
struct phy *phy;
struct clk *sysclk;
/* platform data */
struct inno_hdmi_phy_drv_data *plat_data;
/* clk provider */
struct clk_hw hw;
struct clk *pclk;
@ -170,24 +184,7 @@ struct pre_pll_config {
u8 pclk_div_c;
u8 pclk_div_d;
u8 vco_div_5_en;
};
static const struct pre_pll_config pre_pll_cfg_table[] = {
{ 27000000, 27000000, 1, 90, 3, 2, 2, 10, 3, 3, 4, 0},
{ 27000000, 33750000, 1, 90, 1, 3, 3, 10, 3, 3, 4, 0},
{ 40000000, 40000000, 1, 80, 2, 2, 2, 12, 2, 2, 2, 0},
{ 59400000, 59400000, 1, 99, 3, 1, 1, 1, 3, 3, 4, 0},
{ 59400000, 74250000, 1, 99, 1, 2, 2, 1, 3, 3, 4, 0},
{ 74250000, 74250000, 1, 99, 1, 2, 2, 1, 2, 3, 4, 0},
{ 74250000, 92812500, 4, 495, 1, 2, 2, 1, 3, 3, 4, 0},
{148500000, 148500000, 1, 99, 1, 1, 1, 1, 2, 2, 2, 0},
{148500000, 185625000, 4, 495, 0, 2, 2, 1, 3, 2, 2, 0},
{297000000, 297000000, 1, 99, 0, 1, 1, 1, 0, 2, 2, 0},
{297000000, 371250000, 4, 495, 1, 2, 0, 1, 3, 1, 1, 0},
{594000000, 297000000, 1, 99, 0, 1, 1, 1, 0, 2, 1, 0},
{594000000, 371250000, 4, 495, 1, 2, 0, 1, 3, 1, 1, 1},
{594000000, 594000000, 1, 99, 0, 2, 0, 1, 0, 1, 1, 0},
{ ~0UL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
u32 fracdiv;
};
struct post_pll_config {
@ -195,32 +192,116 @@ struct post_pll_config {
u8 prediv;
u16 fbdiv;
u8 postdiv;
};
static const struct post_pll_config post_pll_cfg_table[] = {
{ 33750000, 1, 40, 8},
{ 74250000, 1, 40, 8},
{148500000, 2, 40, 4},
{297000000, 4, 40, 2},
{371250000, 8, 40, 1},
{ ~0UL, 0, 0, 0}
u8 version;
};
struct phy_config {
unsigned long tmdsclock;
u8 pre_emphasis;
u8 clk_level;
u8 data0_level;
u8 data1_level;
u8 data2_level;
unsigned long tmdsclock;
u8 regs[14];
};
static const struct phy_config phy_cfg_table[] = {
{165000000, 0, 4, 4, 4, 4},
{225000000, 0, 6, 6, 6, 6},
{340000000, 1, 6, 10, 10, 10},
{594000000, 1, 7, 10, 10, 10},
{ ~0UL, 0, 0, 0, 0, 0}
struct inno_hdmi_phy_ops {
void (*init)(struct inno_hdmi_phy *inno);
int (*power_on)(struct inno_hdmi_phy *inno,
const struct post_pll_config *cfg,
const struct phy_config *phy_cfg);
void (*power_off)(struct inno_hdmi_phy *inno);
int (*pre_pll_update)(struct inno_hdmi_phy *inno,
const struct pre_pll_config *cfg);
unsigned long (*recalc_rate)(struct inno_hdmi_phy *inno,
unsigned long parent_rate);
};
struct inno_hdmi_phy_drv_data {
enum inno_hdmi_phy_type dev_type;
const struct inno_hdmi_phy_ops *ops;
const struct phy_config *phy_cfg_table;
};
static const struct pre_pll_config pre_pll_cfg_table[] = {
{ 27000000, 27000000, 1, 90, 3, 2, 2, 10, 3, 3, 4, 0, 0},
{ 27000000, 33750000, 1, 90, 1, 3, 3, 10, 3, 3, 4, 0, 0},
{ 40000000, 40000000, 1, 80, 2, 2, 2, 12, 2, 2, 2, 0, 0},
{ 59341000, 59341000, 1, 98, 3, 1, 2, 1, 3, 3, 4, 0, 0xE6AE6B},
{ 59400000, 59400000, 1, 99, 3, 1, 1, 1, 3, 3, 4, 0, 0},
{ 59341000, 74176250, 1, 98, 0, 3, 3, 1, 3, 3, 4, 0, 0xE6AE6B},
{ 59400000, 74250000, 1, 99, 1, 2, 2, 1, 3, 3, 4, 0, 0},
{ 74176000, 74176000, 1, 98, 1, 2, 2, 1, 2, 3, 4, 0, 0xE6AE6B},
{ 74250000, 74250000, 1, 99, 1, 2, 2, 1, 2, 3, 4, 0, 0},
{ 74176000, 92720000, 4, 494, 1, 2, 2, 1, 3, 3, 4, 0, 0x816817},
{ 74250000, 92812500, 4, 495, 1, 2, 2, 1, 3, 3, 4, 0, 0},
{148352000, 148352000, 1, 98, 1, 1, 1, 1, 2, 2, 2, 0, 0xE6AE6B},
{148500000, 148500000, 1, 99, 1, 1, 1, 1, 2, 2, 2, 0, 0},
{148352000, 185440000, 4, 494, 0, 2, 2, 1, 3, 2, 2, 0, 0x816817},
{148500000, 185625000, 4, 495, 0, 2, 2, 1, 3, 2, 2, 0, 0},
{296703000, 296703000, 1, 98, 0, 1, 1, 1, 0, 2, 2, 0, 0xE6AE6B},
{297000000, 297000000, 1, 99, 0, 1, 1, 1, 0, 2, 2, 0, 0},
{296703000, 370878750, 4, 494, 1, 2, 0, 1, 3, 1, 1, 0, 0x816817},
{297000000, 371250000, 4, 495, 1, 2, 0, 1, 3, 1, 1, 0, 0},
{593407000, 296703500, 1, 98, 0, 1, 1, 1, 0, 2, 1, 0, 0xE6AE6B},
{594000000, 297000000, 1, 99, 0, 1, 1, 1, 0, 2, 1, 0, 0},
{593407000, 370879375, 4, 494, 1, 2, 0, 1, 3, 1, 1, 1, 0x816817},
{594000000, 371250000, 4, 495, 1, 2, 0, 1, 3, 1, 1, 1, 0},
{593407000, 593407000, 1, 98, 0, 2, 0, 1, 0, 1, 1, 0, 0xE6AE6B},
{594000000, 594000000, 1, 99, 0, 2, 0, 1, 0, 1, 1, 0, 0},
{ ~0UL, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
};
static const struct post_pll_config post_pll_cfg_table[] = {
{33750000, 1, 40, 8, 1},
{33750000, 1, 80, 8, 2},
{74250000, 1, 40, 8, 1},
{74250000, 18, 80, 8, 2},
{148500000, 2, 40, 4, 3},
{297000000, 4, 40, 2, 3},
{594000000, 8, 40, 1, 3},
{ ~0UL, 0, 0, 0, 0}
};
static const struct phy_config rk3228_phy_cfg[] = {
{ 165000000, {
0xaa, 0x00, 0x44, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
},
}, {
340000000, {
0xaa, 0x15, 0x6a, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
},
}, {
594000000, {
0xaa, 0x15, 0x7a, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
},
}, {
~0UL, {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
},
}
};
static const struct phy_config rk3328_phy_cfg[] = {
{ 165000000, {
0x07, 0x08, 0x08, 0x08, 0x00, 0x00, 0x08, 0x08, 0x08,
0x00, 0xac, 0xcc, 0xcc, 0xcc,
},
}, {
340000000, {
0x0b, 0x0d, 0x0d, 0x0d, 0x07, 0x15, 0x08, 0x08, 0x08,
0x3f, 0xac, 0xcc, 0xcd, 0xdd,
},
}, {
594000000, {
0x10, 0x1a, 0x1a, 0x1a, 0x07, 0x15, 0x08, 0x08, 0x08,
0x00, 0xac, 0xcc, 0xcc, 0xcc,
},
}, {
~0UL, {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
},
}
};
static inline struct inno_hdmi_phy *to_inno_hdmi_phy(struct clk_hw *hw)
@ -248,125 +329,75 @@ static inline void inno_update_bits(struct inno_hdmi_phy *inno, u8 reg,
regmap_update_bits(inno->regmap, reg * 4, mask, val);
}
static void inno_hdmi_phy_post_pll_update(struct inno_hdmi_phy *inno,
const struct post_pll_config *cfg)
static u32 inno_hdmi_phy_get_tmdsclk(struct inno_hdmi_phy *inno, int rate)
{
u8 m, v;
int bus_width = phy_get_bus_width(inno->phy);
u32 tmdsclk;
m = POST_PLL_PRE_DIV_MASK;
v = POST_PLL_PRE_DIV(cfg->prediv);
inno_update_bits(inno, 0xe9, m, v);
m = POST_PLL_FB_DIV_8_MASK;
v = POST_PLL_FB_DIV_8(cfg->fbdiv >> 8);
inno_update_bits(inno, 0xeb, m, v);
inno_write(inno, 0xea, POST_PLL_FB_DIV_7_0(cfg->fbdiv));
if (cfg->postdiv == 1) {
/* Disable Post-PLL post divider */
m = POST_PLL_POST_DIV_EN_MASK;
v = POST_PLL_POST_DIV_DISABLE;
inno_update_bits(inno, 0xe9, m, v);
} else {
/* Enable Post-PLL post divider */
m = POST_PLL_POST_DIV_EN_MASK;
v = POST_PLL_POST_DIV_ENABLE;
inno_update_bits(inno, 0xe9, m, v);
m = POST_PLL_POST_DIV_MASK;
v = POST_PLL_POST_DIV(cfg->postdiv / 2 - 1);
inno_update_bits(inno, 0xeb, m, v);
switch (bus_width) {
case 4:
tmdsclk = rate / 2;
break;
case 5:
tmdsclk = rate * 5 / 8;
break;
case 6:
tmdsclk = rate * 3 / 4;
break;
case 10:
tmdsclk = rate * 5 / 4;
break;
case 12:
tmdsclk = rate * 3 / 2;
break;
case 16:
tmdsclk = rate * 2;
break;
default:
tmdsclk = rate;
}
return tmdsclk;
}
static int inno_hdmi_phy_power_on(struct phy *phy)
{
struct inno_hdmi_phy *inno = phy_get_drvdata(phy);
const struct post_pll_config *cfg = post_pll_cfg_table;
const struct phy_config *phy_cfg = phy_cfg_table;
int pll_tries;
u32 m, v;
const struct phy_config *phy_cfg = inno->plat_data->phy_cfg_table;
u32 tmdsclk = inno_hdmi_phy_get_tmdsclk(inno, inno->pixclock);
u32 chipversion = 1;
if (inno->plat_data->dev_type == INNO_HDMI_PHY_RK3328 &&
rockchip_get_cpu_version())
chipversion = 2;
for (; cfg->tmdsclock != ~0UL; cfg++)
if (inno->pixclock <= cfg->tmdsclock)
if (tmdsclk <= cfg->tmdsclock &&
cfg->version & chipversion)
break;
for (; phy_cfg->tmdsclock != ~0UL; phy_cfg++)
if (inno->pixclock <= cfg->tmdsclock)
if (tmdsclk <= phy_cfg->tmdsclock)
break;
if (cfg->tmdsclock == ~0UL || phy_cfg->tmdsclock == ~0UL)
return -EINVAL;
/* pdata_en disable */
inno_update_bits(inno, 0x02, PDATAEN_MASK, PDATAEN_DISABLE);
/* Power down Post-PLL */
inno_update_bits(inno, 0xe0, POST_PLL_POWER_MASK, POST_PLL_POWER_DOWN);
/* Pre-emphasis level control */
m = TMDS_DATA_CH2_PRE_EMPHASIS_MASK | TMDS_DATA_CH1_PRE_EMPHASIS_MASK |
TMDS_DATA_CH0_PRE_EMPHASIS_MASK;
v = TMDS_DATA_CH2_PRE_EMPHASIS(phy_cfg->pre_emphasis) |
TMDS_DATA_CH1_PRE_EMPHASIS(phy_cfg->pre_emphasis) |
TMDS_DATA_CH0_PRE_EMPHASIS(phy_cfg->pre_emphasis);
inno_update_bits(inno, 0xf0, m, v);
/* Output swing control */
v = TMDS_CLK_CH_OUTPUT_SWING(phy_cfg->clk_level) |
TMDS_DATA_CH2_OUTPUT_SWING(phy_cfg->data2_level);
inno_write(inno, 0xf1, v);
v = TMDS_DATA_CH1_OUTPUT_SWING(phy_cfg->data1_level) |
TMDS_DATA_CH0_OUTPUT_SWING(phy_cfg->data0_level);
inno_write(inno, 0xf2, v);
/* Post-PLL update */
inno_hdmi_phy_post_pll_update(inno, cfg);
/* Power up Post-PLL */
inno_update_bits(inno, 0xe0, POST_PLL_POWER_MASK, POST_PLL_POWER_UP);
/* BandGap enable */
inno_update_bits(inno, 0xe1, BANDGAP_MASK, BANDGAP_ENABLE);
/* TMDS driver enable */
inno_update_bits(inno, 0xe1, TMDS_DRIVER_MASK, TMDS_DRIVER_ENABLE);
/* Wait for post PLL lock */
pll_tries = 0;
while (!(inno_read(inno, 0xeb) & POST_PLL_LOCK_STATUS)) {
if (pll_tries == INNO_HDMI_PHY_TIMEOUT_LOOP_COUNT) {
dev_err(inno->dev, "Post-PLL unlock\n");
return -ETIMEDOUT;
}
pll_tries++;
usleep_range(100, 110);
}
if (cfg->tmdsclock > 340000000)
msleep(100);
/* pdata_en enable */
inno_update_bits(inno, 0x02, PDATAEN_MASK, PDATAEN_ENABLE);
dev_dbg(inno->dev, "Inno HDMI PHY Power On\n");
return 0;
if (inno->plat_data->ops->power_on)
return inno->plat_data->ops->power_on(inno, cfg, phy_cfg);
else
return -EINVAL;
}
static int inno_hdmi_phy_power_off(struct phy *phy)
{
struct inno_hdmi_phy *inno = phy_get_drvdata(phy);
/* TMDS driver Disable */
inno_update_bits(inno, 0xe1, TMDS_DRIVER_MASK, TMDS_DRIVER_DISABLE);
/* BandGap Disable */
inno_update_bits(inno, 0xe1, BANDGAP_MASK, BANDGAP_DISABLE);
/* Post-PLL power down */
inno_update_bits(inno, 0xe0, POST_PLL_POWER_MASK, POST_PLL_POWER_DOWN);
if (inno->plat_data->ops->power_off)
inno->plat_data->ops->power_off(inno);
dev_dbg(inno->dev, "Inno HDMI PHY Power Off\n");
@ -384,7 +415,10 @@ static int inno_hdmi_phy_clk_is_prepared(struct clk_hw *hw)
struct inno_hdmi_phy *inno = to_inno_hdmi_phy(hw);
u8 status;
status = inno_read(inno, 0xe0) & PRE_PLL_POWER_MASK;
if (inno->plat_data->dev_type == INNO_HDMI_PHY_RK3228)
status = inno_read(inno, 0xe0) & PRE_PLL_POWER_MASK;
else
status = inno_read(inno, 0xa0) & 1;
return status ? 0 : 1;
}
@ -393,7 +427,11 @@ static int inno_hdmi_phy_clk_prepare(struct clk_hw *hw)
{
struct inno_hdmi_phy *inno = to_inno_hdmi_phy(hw);
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK, PRE_PLL_POWER_UP);
if (inno->plat_data->dev_type == INNO_HDMI_PHY_RK3228)
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK,
PRE_PLL_POWER_UP);
else
inno_update_bits(inno, 0xa0, 1, 0);
return 0;
}
@ -402,7 +440,11 @@ static void inno_hdmi_phy_clk_unprepare(struct clk_hw *hw)
{
struct inno_hdmi_phy *inno = to_inno_hdmi_phy(hw);
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK, PRE_PLL_POWER_DOWN);
if (inno->plat_data->dev_type == INNO_HDMI_PHY_RK3228)
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK,
PRE_PLL_POWER_DOWN);
else
inno_update_bits(inno, 0xa0, 1, 0);
}
static unsigned long inno_hdmi_phy_clk_recalc_rate(struct clk_hw *hw,
@ -410,7 +452,10 @@ static unsigned long inno_hdmi_phy_clk_recalc_rate(struct clk_hw *hw,
{
struct inno_hdmi_phy *inno = to_inno_hdmi_phy(hw);
return inno->pixclock;
if (inno->plat_data->ops->recalc_rate)
return inno->plat_data->ops->recalc_rate(inno, parent_rate);
else
return inno->pixclock;
}
static long inno_hdmi_phy_clk_round_rate(struct clk_hw *hw, unsigned long rate,
@ -423,8 +468,8 @@ static long inno_hdmi_phy_clk_round_rate(struct clk_hw *hw, unsigned long rate,
if (cfg->pixclock == rate)
break;
/* XXX: Limit pixel clock under 300MHz */
if (cfg->pixclock > 300000000)
/* XXX: Limit pixel clock under 600MHz */
if (cfg->pixclock > 600000000)
return -EINVAL;
dev_dbg(inno->dev, "%s: rate=%ld\n", __func__, cfg->pixclock);
@ -432,45 +477,15 @@ static long inno_hdmi_phy_clk_round_rate(struct clk_hw *hw, unsigned long rate,
return cfg->pixclock;
}
static void inno_hdmi_phy_pre_pll_update(struct inno_hdmi_phy *inno,
const struct pre_pll_config *cfg)
{
u32 m, v;
m = PRE_PLL_FB_DIV_8_MASK | PCLK_VCO_DIV_5_MASK | PRE_PLL_PRE_DIV_MASK;
v = PRE_PLL_FB_DIV_8(cfg->fbdiv >> 8) |
PCLK_VCO_DIV_5(cfg->vco_div_5_en) | PRE_PLL_PRE_DIV(cfg->prediv);
inno_update_bits(inno, 0xe2, m, v);
inno_write(inno, 0xe3, PRE_PLL_FB_DIV_7_0(cfg->fbdiv));
m = PRE_PLL_PCLK_DIV_B_MASK | PRE_PLL_PCLK_DIV_A_MASK;
v = PRE_PLL_PCLK_DIV_B(cfg->pclk_div_b) |
PRE_PLL_PCLK_DIV_A(cfg->pclk_div_a);
inno_update_bits(inno, 0xe4, m, v);
m = PRE_PLL_PCLK_DIV_C_MASK | PRE_PLL_PCLK_DIV_D_MASK;
v = PRE_PLL_PCLK_DIV_C(cfg->pclk_div_c) |
PRE_PLL_PCLK_DIV_D(cfg->pclk_div_d);
inno_update_bits(inno, 0xe5, m, v);
m = PRE_PLL_TMDSCLK_DIV_C_MASK | PRE_PLL_TMDSCLK_DIV_A_MASK |
PRE_PLL_TMDSCLK_DIV_B_MASK;
v = PRE_PLL_TMDSCLK_DIV_C(cfg->tmds_div_c) |
PRE_PLL_TMDSCLK_DIV_A(cfg->tmds_div_a) |
PRE_PLL_TMDSCLK_DIV_B(cfg->tmds_div_b);
inno_update_bits(inno, 0xe6, m, v);
}
static int inno_hdmi_phy_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct inno_hdmi_phy *inno = to_inno_hdmi_phy(hw);
const struct pre_pll_config *cfg = pre_pll_cfg_table;
int pll_tries;
u32 tmdsclk = inno_hdmi_phy_get_tmdsclk(inno, rate);
for (; cfg->pixclock != ~0UL; cfg++)
if (cfg->pixclock == rate && cfg->tmdsclock == rate)
if (cfg->pixclock == rate && cfg->tmdsclock == tmdsclk)
break;
if (cfg->pixclock == ~0UL) {
@ -478,25 +493,8 @@ static int inno_hdmi_phy_clk_set_rate(struct clk_hw *hw, unsigned long rate,
return -EINVAL;
}
/* Power down PRE-PLL */
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK, PRE_PLL_POWER_DOWN);
inno_hdmi_phy_pre_pll_update(inno, cfg);
/* Power up PRE-PLL */
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK, PRE_PLL_POWER_UP);
/* Wait for Pre-PLL lock */
pll_tries = 0;
while (!(inno_read(inno, 0xe8) & PRE_PLL_LOCK_STATUS)) {
if (pll_tries == INNO_HDMI_PHY_TIMEOUT_LOOP_COUNT) {
dev_err(inno->dev, "Pre-PLL unlock\n");
return -ETIMEDOUT;
}
pll_tries++;
usleep_range(100, 110);
}
if (inno->plat_data->ops->pre_pll_update)
inno->plat_data->ops->pre_pll_update(inno, cfg);
inno->pixclock = rate;
@ -556,11 +554,14 @@ static int inno_hdmi_phy_clk_register(struct inno_hdmi_phy *inno)
return 0;
}
static void inno_hdmi_phy_init(struct inno_hdmi_phy *inno)
static void inno_hdmi_phy_rk3228_init(struct inno_hdmi_phy *inno)
{
u32 m, v;
/* Use internal control rxsense/poweron/pllpd/pdataen signal. */
/*
* Use phy internal register control
* rxsense/poweron/pllpd/pdataen signal.
*/
m = BYPASS_RXSENSE_EN_MASK | BYPASS_PWRON_EN_MASK |
BYPASS_PLLPD_EN_MASK;
v = BYPASS_RXSENSE_EN | BYPASS_PWRON_EN | BYPASS_PLLPD_EN;
@ -571,6 +572,376 @@ static void inno_hdmi_phy_init(struct inno_hdmi_phy *inno)
inno_update_bits(inno, 0xaa, POST_PLL_CTRL_MASK, POST_PLL_CTRL_MANUAL);
}
static int
inno_hdmi_phy_rk3228_power_on(struct inno_hdmi_phy *inno,
const struct post_pll_config *cfg,
const struct phy_config *phy_cfg)
{
int pll_tries;
u32 m, v;
/* pdata_en disable */
inno_update_bits(inno, 0x02, PDATAEN_MASK, PDATAEN_DISABLE);
/* Power down Post-PLL */
inno_update_bits(inno, 0xe0, POST_PLL_POWER_MASK, POST_PLL_POWER_DOWN);
/* Post-PLL update */
m = POST_PLL_PRE_DIV_MASK;
v = POST_PLL_PRE_DIV(cfg->prediv);
inno_update_bits(inno, 0xe9, m, v);
m = POST_PLL_FB_DIV_8_MASK;
v = POST_PLL_FB_DIV_8(cfg->fbdiv >> 8);
inno_update_bits(inno, 0xeb, m, v);
inno_write(inno, 0xea, POST_PLL_FB_DIV_7_0(cfg->fbdiv));
if (cfg->postdiv == 1) {
/* Disable Post-PLL post divider */
m = POST_PLL_POST_DIV_EN_MASK;
v = POST_PLL_POST_DIV_DISABLE;
inno_update_bits(inno, 0xe9, m, v);
} else {
/* Enable Post-PLL post divider */
m = POST_PLL_POST_DIV_EN_MASK;
v = POST_PLL_POST_DIV_ENABLE;
inno_update_bits(inno, 0xe9, m, v);
m = POST_PLL_POST_DIV_MASK;
v = POST_PLL_POST_DIV(cfg->postdiv / 2 - 1);
inno_update_bits(inno, 0xeb, m, v);
}
for (v = 0; v < 4; v++)
inno_write(inno, 0xef + v, phy_cfg->regs[v]);
/* Power up Post-PLL */
inno_update_bits(inno, 0xe0, POST_PLL_POWER_MASK, POST_PLL_POWER_UP);
/* BandGap enable */
inno_update_bits(inno, 0xe1, BANDGAP_MASK, BANDGAP_ENABLE);
/* TMDS driver enable */
inno_update_bits(inno, 0xe1, TMDS_DRIVER_MASK, TMDS_DRIVER_ENABLE);
/* Wait for post PLL lock */
pll_tries = 0;
while (!(inno_read(inno, 0xeb) & POST_PLL_LOCK_STATUS)) {
if (pll_tries == INNO_HDMI_PHY_TIMEOUT_LOOP_COUNT) {
dev_err(inno->dev, "Post-PLL unlock\n");
return -ETIMEDOUT;
}
pll_tries++;
usleep_range(100, 110);
}
if (cfg->tmdsclock > 340000000)
msleep(100);
/* pdata_en enable */
inno_update_bits(inno, 0x02, PDATAEN_MASK, PDATAEN_ENABLE);
return 0;
}
static void inno_hdmi_phy_rk3228_power_off(struct inno_hdmi_phy *inno)
{
/* TMDS driver Disable */
inno_update_bits(inno, 0xe1, TMDS_DRIVER_MASK, TMDS_DRIVER_DISABLE);
/* BandGap Disable */
inno_update_bits(inno, 0xe1, BANDGAP_MASK, BANDGAP_DISABLE);
/* Post-PLL power down */
inno_update_bits(inno, 0xe0, POST_PLL_POWER_MASK, POST_PLL_POWER_DOWN);
}
static int
inno_hdmi_phy_rk3228_pre_pll_update(struct inno_hdmi_phy *inno,
const struct pre_pll_config *cfg)
{
int pll_tries;
u32 m, v;
/* Power down PRE-PLL */
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK, PRE_PLL_POWER_DOWN);
m = PRE_PLL_FB_DIV_8_MASK | PCLK_VCO_DIV_5_MASK | PRE_PLL_PRE_DIV_MASK;
v = PRE_PLL_FB_DIV_8(cfg->fbdiv >> 8) |
PCLK_VCO_DIV_5(cfg->vco_div_5_en) | PRE_PLL_PRE_DIV(cfg->prediv);
inno_update_bits(inno, 0xe2, m, v);
inno_write(inno, 0xe3, PRE_PLL_FB_DIV_7_0(cfg->fbdiv));
m = PRE_PLL_PCLK_DIV_B_MASK | PRE_PLL_PCLK_DIV_A_MASK;
v = PRE_PLL_PCLK_DIV_B(cfg->pclk_div_b) |
PRE_PLL_PCLK_DIV_A(cfg->pclk_div_a);
inno_update_bits(inno, 0xe4, m, v);
m = PRE_PLL_PCLK_DIV_C_MASK | PRE_PLL_PCLK_DIV_D_MASK;
v = PRE_PLL_PCLK_DIV_C(cfg->pclk_div_c) |
PRE_PLL_PCLK_DIV_D(cfg->pclk_div_d);
inno_update_bits(inno, 0xe5, m, v);
m = PRE_PLL_TMDSCLK_DIV_C_MASK | PRE_PLL_TMDSCLK_DIV_A_MASK |
PRE_PLL_TMDSCLK_DIV_B_MASK;
v = PRE_PLL_TMDSCLK_DIV_C(cfg->tmds_div_c) |
PRE_PLL_TMDSCLK_DIV_A(cfg->tmds_div_a) |
PRE_PLL_TMDSCLK_DIV_B(cfg->tmds_div_b);
inno_update_bits(inno, 0xe6, m, v);
/* Power up PRE-PLL */
inno_update_bits(inno, 0xe0, PRE_PLL_POWER_MASK, PRE_PLL_POWER_UP);
/* Wait for Pre-PLL lock */
pll_tries = 0;
while (!(inno_read(inno, 0xe8) & PRE_PLL_LOCK_STATUS)) {
if (pll_tries == INNO_HDMI_PHY_TIMEOUT_LOOP_COUNT) {
dev_err(inno->dev, "Pre-PLL unlock\n");
return -ETIMEDOUT;
}
pll_tries++;
usleep_range(100, 110);
}
return 0;
}
static void inno_hdmi_phy_rk3328_init(struct inno_hdmi_phy *inno)
{
/*
* Use phy internal register control
* rxsense/poweron/pllpd/pdataen signal.
*/
inno_write(inno, 0x01, 0x07);
inno_write(inno, 0x02, 0x91);
}
static int
inno_hdmi_phy_rk3328_power_on(struct inno_hdmi_phy *inno,
const struct post_pll_config *cfg,
const struct phy_config *phy_cfg)
{
u32 val;
/* set pdata_en to 0 */
inno_update_bits(inno, 0x02, 1, 0);
/* Power off post PLL */
inno_update_bits(inno, 0xaa, 1, 1);
val = cfg->fbdiv & 0xff;
inno_write(inno, 0xac, val);
if (cfg->postdiv == 1) {
inno_write(inno, 0xaa, 2);
val = (cfg->fbdiv >> 8) | cfg->prediv;
inno_write(inno, 0xab, val);
} else {
val = (cfg->postdiv / 2) - 1;
inno_write(inno, 0xad, val);
val = (cfg->fbdiv >> 8) | cfg->prediv;
inno_write(inno, 0xab, val);
inno_write(inno, 0xaa, 0x0e);
}
for (val = 0; val < 14; val++)
inno_write(inno, 0xb5 + val, phy_cfg->regs[val]);
/* bit[7:6] of reg c8/c9/ca/c8 is ESD detect threshold:
* 00 - 340mV
* 01 - 280mV
* 10 - 260mV
* 11 - 240mV
* default is 240mV, now we set it to 340mV
*/
inno_write(inno, 0xc8, 0);
inno_write(inno, 0xc9, 0);
inno_write(inno, 0xca, 0);
inno_write(inno, 0xcb, 0);
if (phy_cfg->tmdsclock > 340000000) {
/* Set termination resistor to 100ohm */
val = clk_get_rate(inno->sysclk) / 100000;
inno_write(inno, 0xc5, ((val >> 8) & 0xff) | 0x80);
inno_write(inno, 0xc6, val & 0xff);
inno_write(inno, 0xc7, 3 << 1);
inno_write(inno, 0xc5, ((val >> 8) & 0xff));
} else if (phy_cfg->tmdsclock > 165000000) {
inno_write(inno, 0xc5, 0x81);
/* clk termination resistor is 50ohm
* data termination resistor is 150ohm
*/
inno_write(inno, 0xc8, 0x30);
inno_write(inno, 0xc9, 0x10);
inno_write(inno, 0xca, 0x10);
inno_write(inno, 0xcb, 0x10);
} else {
inno_write(inno, 0xc5, 0x81);
}
/* Power up post PLL */
inno_update_bits(inno, 0xaa, 1, 0);
/* Power up tmds driver */
inno_update_bits(inno, 0xb0, 4, 4);
inno_write(inno, 0xb2, 0x0f);
/* Wait for post PLL lock */
for (val = 0; val < 5; val++) {
if (inno_read(inno, 0xaf) & 1)
break;
usleep_range(1000, 2000);
}
if (!(inno_read(inno, 0xaf) & 1)) {
dev_err(inno->dev, "HDMI PHY Post PLL unlock\n");
return -ETIMEDOUT;
}
if (phy_cfg->tmdsclock > 340000000)
msleep(100);
/* set pdata_en to 1 */
inno_update_bits(inno, 0x02, 1, 1);
return 0;
}
static void inno_hdmi_phy_rk3328_power_off(struct inno_hdmi_phy *inno)
{
/* Power off driver */
inno_write(inno, 0xb2, 0);
/* Power off band gap */
inno_update_bits(inno, 0xb0, 4, 0);
/* Power off post pll */
inno_update_bits(inno, 0xaa, 1, 1);
}
static int
inno_hdmi_phy_rk3328_pre_pll_update(struct inno_hdmi_phy *inno,
const struct pre_pll_config *cfg)
{
u32 val;
/* Power off PLL */
inno_update_bits(inno, 0xa0, 1, 1);
/* Configure pre-pll */
inno_update_bits(inno, 0xa0, 2, (cfg->vco_div_5_en & 1) << 1);
inno_write(inno, 0xa1, cfg->prediv);
if (cfg->fracdiv)
val = ((cfg->fbdiv >> 8) & 0x0f) | 0xc0;
else
val = ((cfg->fbdiv >> 8) & 0x0f) | 0xf0;
inno_write(inno, 0xa2, val);
inno_write(inno, 0xa3, cfg->fbdiv & 0xff);
val = (cfg->pclk_div_a & 0x1f) |
((cfg->pclk_div_b & 3) << 5);
inno_write(inno, 0xa5, val);
val = (cfg->pclk_div_d & 0x1f) |
((cfg->pclk_div_c & 3) << 5);
inno_write(inno, 0xa6, val);
val = ((cfg->tmds_div_a & 3) << 4) |
((cfg->tmds_div_b & 3) << 2) |
(cfg->tmds_div_c & 3);
inno_write(inno, 0xa4, val);
if (cfg->fracdiv) {
val = cfg->fracdiv & 0xff;
inno_write(inno, 0xd3, val);
val = (cfg->fracdiv >> 8) & 0xff;
inno_write(inno, 0xd2, val);
val = (cfg->fracdiv >> 16) & 0xff;
inno_write(inno, 0xd1, val);
} else {
inno_write(inno, 0xd3, 0);
inno_write(inno, 0xd2, 0);
inno_write(inno, 0xd1, 0);
}
/* Power up PLL */
inno_update_bits(inno, 0xa0, 1, 0);
/* Wait for PLL lock */
for (val = 0; val < 5; val++) {
if (inno_read(inno, 0xa9) & 1)
break;
usleep_range(1000, 2000);
}
if (val == 5) {
dev_err(inno->dev, "Pre-PLL unlock\n");
return -ETIMEDOUT;
}
return 0;
}
static unsigned long
inno_hdmi_3328_phy_pll_recalc_rate(struct inno_hdmi_phy *inno,
unsigned long parent_rate)
{
unsigned long rate, vco, frac;
u8 nd, no_a, no_b, no_c, no_d;
u16 nf;
nd = inno_read(inno, 0xa1) & 0x3f;
nf = ((inno_read(inno, 0xa2) & 0x0f) << 8) | inno_read(inno, 0xa3);
vco = parent_rate * nf;
if ((inno_read(inno, 0xa2) & 0x30) == 0) {
frac = inno_read(inno, 0xd3) |
(inno_read(inno, 0xd2) << 8) |
(inno_read(inno, 0xd1) << 16);
vco += DIV_ROUND_CLOSEST(parent_rate * frac, (1 << 24));
}
if (inno_read(inno, 0xa0) & 2) {
rate = vco / (nd * 5);
} else {
no_a = inno_read(inno, 0xa5) & 0x1f;
no_b = ((inno_read(inno, 0xa5) >> 5) & 7) + 2;
no_c = (1 << ((inno_read(inno, 0xa6) >> 5) & 7));
no_d = inno_read(inno, 0xa6) & 0x1f;
if (no_a == 1)
rate = vco / (nd * no_b * no_d * 2);
else
rate = vco / (nd * no_a * no_d * 2);
}
return rate;
}
static const struct inno_hdmi_phy_ops rk3228_hdmi_phy_ops = {
.init = inno_hdmi_phy_rk3228_init,
.power_on = inno_hdmi_phy_rk3228_power_on,
.power_off = inno_hdmi_phy_rk3228_power_off,
.pre_pll_update = inno_hdmi_phy_rk3228_pre_pll_update,
};
static const struct inno_hdmi_phy_ops rk3328_hdmi_phy_ops = {
.init = inno_hdmi_phy_rk3328_init,
.power_on = inno_hdmi_phy_rk3328_power_on,
.power_off = inno_hdmi_phy_rk3328_power_off,
.pre_pll_update = inno_hdmi_phy_rk3328_pre_pll_update,
.recalc_rate = inno_hdmi_3328_phy_pll_recalc_rate,
};
static const struct inno_hdmi_phy_drv_data rk3228_hdmi_phy_drv_data = {
.dev_type = INNO_HDMI_PHY_RK3228,
.ops = &rk3228_hdmi_phy_ops,
.phy_cfg_table = rk3228_phy_cfg,
};
static const struct inno_hdmi_phy_drv_data rk3328_hdmi_phy_drv_data = {
.dev_type = INNO_HDMI_PHY_RK3328,
.ops = &rk3328_hdmi_phy_ops,
.phy_cfg_table = rk3328_phy_cfg,
};
static const struct of_device_id inno_hdmi_phy_of_match[] = {
{ .compatible = "rockchip,rk3228-hdmi-phy",
.data = &rk3228_hdmi_phy_drv_data
},
{ .compatible = "rockchip,rk3328-hdmi-phy",
.data = &rk3328_hdmi_phy_drv_data
},
{}
};
MODULE_DEVICE_TABLE(of, inno_hdmi_phy_of_match);
static const struct regmap_config inno_hdmi_phy_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
@ -582,7 +953,7 @@ static int inno_hdmi_phy_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct inno_hdmi_phy *inno;
struct phy *phy;
const struct of_device_id *match;
struct phy_provider *phy_provider;
struct resource *res;
void __iomem *regs;
@ -594,40 +965,71 @@ static int inno_hdmi_phy_probe(struct platform_device *pdev)
inno->dev = dev;
match = of_match_node(inno_hdmi_phy_of_match, pdev->dev.of_node);
inno->plat_data = (struct inno_hdmi_phy_drv_data *)match->data;
if (!inno->plat_data || !inno->plat_data->ops)
return -EINVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
regs = devm_ioremap_resource(dev, res);
if (IS_ERR(regs))
return PTR_ERR(regs);
inno->regmap = devm_regmap_init_mmio_clk(dev, "sysclk", regs,
&inno_hdmi_phy_regmap_config);
if (IS_ERR(inno->regmap)) {
ret = PTR_ERR(inno->regmap);
dev_err(dev, "failed to init regmap: %d\n", ret);
inno->sysclk = devm_clk_get(inno->dev, "sysclk");
if (IS_ERR(inno->sysclk)) {
ret = PTR_ERR(inno->sysclk);
dev_err(inno->dev, "Unable to get inno phy sysclk: %d\n", ret);
return ret;
}
ret = clk_prepare_enable(inno->sysclk);
if (ret) {
dev_err(inno->dev, "Cannot enable inno phy sysclk: %d\n", ret);
return ret;
}
phy = devm_phy_create(dev, NULL, &inno_hdmi_phy_ops);
if (IS_ERR(phy)) {
dev_err(dev, "failed to create HDMI PHY\n");
return PTR_ERR(phy);
inno->regmap = devm_regmap_init_mmio(dev, regs,
&inno_hdmi_phy_regmap_config);
if (IS_ERR(inno->regmap)) {
ret = PTR_ERR(inno->regmap);
dev_err(dev, "failed to init regmap: %d\n", ret);
goto err_regsmap;
}
phy_set_drvdata(phy, inno);
inno->phy = devm_phy_create(dev, NULL, &inno_hdmi_phy_ops);
if (IS_ERR(inno->phy)) {
dev_err(dev, "failed to create HDMI PHY\n");
ret = PTR_ERR(inno->phy);
goto err_phy;
}
phy_set_drvdata(inno->phy, inno);
phy_set_bus_width(inno->phy, 8);
phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
if (IS_ERR(phy_provider)) {
dev_err(dev, "failed to register PHY provider\n");
return PTR_ERR(phy_provider);
ret = PTR_ERR(phy_provider);
goto err_provider;
}
inno_hdmi_phy_init(inno);
if (inno->plat_data->ops->init)
inno->plat_data->ops->init(inno);
ret = inno_hdmi_phy_clk_register(inno);
if (ret)
return ret;
goto err_register;
return 0;
err_register:
devm_of_phy_provider_unregister(dev, phy_provider);
err_provider:
devm_phy_destroy(dev, inno->phy);
err_phy:
regmap_exit(inno->regmap);
err_regsmap:
clk_disable_unprepare(inno->sysclk);
return ret;
}
static int inno_hdmi_phy_remove(struct platform_device *pdev)
@ -637,12 +1039,6 @@ static int inno_hdmi_phy_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id inno_hdmi_phy_of_match[] = {
{ .compatible = "rockchip,rk3228-hdmi-phy" },
{ /* Sentinel */ }
};
MODULE_DEVICE_TABLE(of, inno_hdmi_phy_of_match);
static struct platform_driver inno_hdmi_phy_driver = {
.probe = inno_hdmi_phy_probe,
.remove = inno_hdmi_phy_remove,