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phy: rockchip: mipi-dcphy: select default Output Voltage for dcphy

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Default Output Voltage selction:
D-PHY: 400mV
C-PHY: 530mV

Change-Id: I9ab4a77373f83bc8ba81b6d6483490707499992d
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2021-12-13 11:00:30 +00:00
committed by Tao Huang
parent 004e0a6e1f
commit 979ad571b0
1 changed files with 17 additions and 2 deletions
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19
drivers/phy/rockchip/phy-rockchip-samsung-dcphy.c
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@@ -23,6 +23,9 @@
#define BIAS_CON0 0x0000
#define BIAS_CON1 0x0004
#define BIAS_CON2 0x0008
#define BIAS_CON4 0x0010
#define I_MUX_SEL_MASK GENMASK(6, 5)
#define I_MUX_SEL(x) UPDATE(x, 6, 5)
#define PLL_CON0 0x0100
#define PLL_EN BIT(12)
@@ -1196,6 +1199,14 @@ static void samsung_mipi_dcphy_bias_block_enable(struct samsung_mipi_dcphy *sams
regmap_write(samsung->regmap, BIAS_CON0, 0x0010);
regmap_write(samsung->regmap, BIAS_CON1, 0x0110);
regmap_write(samsung->regmap, BIAS_CON2, 0x3223);
/* default output voltage select:
* dphy: 400mv
* cphy: 530mv
*/
if (samsung->c_option)
regmap_update_bits(samsung->regmap, BIAS_CON4,
I_MUX_SEL_MASK, I_MUX_SEL(2));
}
static void samsung_mipi_dcphy_bias_block_disable(struct samsung_mipi_dcphy *samsung)
@@ -1417,7 +1428,6 @@ static void samsung_mipi_cphy_timing_init(struct samsung_mipi_dcphy *samsung)
regmap_write(samsung->regmap, COMBO_MD2_TIME_CON1, val);
val = T_HS_EXIT(timing->hs_exit) | T_HS_TRAIL(timing->post_3);
regmap_write(samsung->regmap, DPHY_MD3_TIME_CON2, val);
regmap_write(samsung->regmap, COMBO_MD0_TIME_CON2, val);
regmap_write(samsung->regmap, COMBO_MD1_TIME_CON2, val);
regmap_write(samsung->regmap, COMBO_MD2_TIME_CON2, val);
@@ -1441,7 +1451,7 @@ samsung_mipi_dcphy_pll_round_rate(struct samsung_mipi_dcphy *samsung,
unsigned long prate, unsigned long rate,
u8 *prediv, u16 *fbdiv, int *dsm, u8 *scaler)
{
unsigned int max_fout = samsung->c_option ? 4500 : 2000;
unsigned int max_fout = samsung->c_option ? 2000 : 4500;
unsigned long best_freq = 0;
unsigned int fin, fvco, fout;
u8 min_prediv, max_prediv;
@@ -1644,6 +1654,11 @@ static void samsung_mipi_dphy_power_on(struct samsung_mipi_dcphy *samsung)
samsung_mipi_dphy_lane_enable(samsung);
reset_control_deassert(samsung->phy_rst);
/* The TSKEWCAL maximum is 100 µsec
* at initial calibration.
*/
usleep_range(100, 110);
}
static void samsung_mipi_cphy_power_on(struct samsung_mipi_dcphy *samsung)