| Message ID | 20210907083723.7725-2-granquet@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | MT8195 HDMI Tx support | expand |
On Tue, 2021-09-07 at 10:37 +0200, Guillaume Ranquet wrote: > Add basic support for the mediatek hdmi phy on MT8195 SoC > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> > --- > drivers/phy/mediatek/Makefile | 1 + > drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 777 > +++++++++++++++++++++ > drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h | 179 +++++ > 3 files changed, 957 insertions(+) > create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h > > diff --git a/drivers/phy/mediatek/Makefile > b/drivers/phy/mediatek/Makefile > index ace660fbed3a..8024961160ad 100644 > --- a/drivers/phy/mediatek/Makefile > +++ b/drivers/phy/mediatek/Makefile > @@ -10,6 +10,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk- > xsphy.o > phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o > +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o > obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o > > phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o > diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > new file mode 100644 > index 000000000000..0cb46ab29257 > --- /dev/null > +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > @@ -0,0 +1,777 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (c) 2019 MediaTek Inc. 2021? > + */ > + > +#include <linux/delay.h> > +#include <linux/io.h> > +#include <linux/mfd/syscon.h> > +#include <linux/module.h> > +#include <linux/phy/phy.h> > +#include <linux/platform_device.h> > +#include <linux/types.h> > +#include <linux/nvmem-consumer.h> > + > +#include "phy-mtk-hdmi-mt8195.h" > +#include "phy-mtk-hdmi.h" > + > +static inline bool mtk_hdmi_phy_readbit(struct mtk_hdmi_phy > *hdmi_phy, > + unsigned short reg, unsigned > int offset) > +{ > + return (readl(hdmi_phy->regs + reg) & offset); > +} > + > +/*********Analog API export to HDMI Digital start*****/ > +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy) > +{ > + /*make data fifo writable for hdmi2.0*/ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL, > reg_ana_hdmi20_fifo_en, > + reg_ana_hdmi20_fifo_en); > +} > + > +void mtk_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy *hdmi_phy, bool > enable) > +{ > + mtk_hdmi_ana_fifo_en(hdmi_phy); > + > + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G, > + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10 > + */ > + if (enable) > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, > + (0x2 << reg_txc_div_SHIFT), > reg_txc_div); > + else > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0, > reg_txc_div); > +} > + > +/*********Analog API export to HDMI Digital end*******/ > + > +static int mtk_hdmi_pll_select_source(struct clk_hw *hw) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_HDMITX_REF_XTAL_SEL_SHIFT, How about using a macro, like REG_HDMITX_REF_XTAL_SEL_VAL(x)? > + REG_HDMITX_REF_XTAL_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_HDMITX_REF_RESPLL_SEL_SHIFT, > + REG_HDMITX_REF_RESPLL_SEL); > + > + /*DA_HDMITX21_REF_CK for TXPLL input source*/ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITXPLL_REF_CK_SEL_SHIFT, > + RG_HDMITXPLL_REF_CK_SEL); > + > + return 0; > +} > + > +static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + /* no matter pll input source is HDMIRX_REF_CK, xTal26M or TVD > PLL, > + * the performance configuration is the same. > + * RG_HDMITXPLL_BP2 always 1'b1 = 0x1 > + * RG_HDMITXPLL_BC[1:0] always 2'b11 = 0x3 > + * RG_HDMITXPLL_IC[4:0] always 5'b00001 = 0x1 > + * RG_HDMITXPLL_BR[2:0] stage treatment: > + * 24bit or 48bit->3'b001 = 0x1 > + * 30bit or 36bit->3'b011 = 0x3 > + * RG_HDMITXPLL_IR[4:0] stage treatment: > + * 24bit,30bit,48bit ->5'b00010 = 0x2 > + * 36bit ->5'b00011 = 0x3 > + * RG_HDMITXPLL_BP[3:0] always 4'b1111 = 0xf > + * RG_HDMITXPLL_IBAND_FIX_EN, RG_HDMITXPLL_RESERVE[14] always > 2'b00 = 0x0 > + * RG_HDMITXPLL_HIKVCO always 1'b1 = 0x1 > + */ > + > + /* BP2 */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_BP2_SHIFT, > RG_HDMITXPLL_BP2); > + > + /* BC */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x3 << RG_HDMITXPLL_BC_SHIFT, > RG_HDMITXPLL_BC); > + > + /* IC */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x1 << RG_HDMITXPLL_IC_SHIFT, > RG_HDMITXPLL_IC); > + > + /* BR */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x2 << RG_HDMITXPLL_BR_SHIFT, > + RG_HDMITXPLL_BR); > + > + /* IR */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x2 << RG_HDMITXPLL_IR_SHIFT, > + RG_HDMITXPLL_IR); > + > + /* BP */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0xf << RG_HDMITXPLL_BP_SHIFT, > RG_HDMITXPLL_BP); > + > + /* IBAND_FIX_EN, RESERVE[14] */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT, > + RG_HDMITXPLL_IBAND_FIX_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT14); > + > + /* HIKVCO */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT, > + RG_HDMITXPLL_HIKVCO); > + > + /* HREN */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_HREN_SHIFT, > RG_HDMITXPLL_HREN); > + > + /* LVR_SEL */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT, > + RG_HDMITXPLL_LVR_SEL); > + > + /* RG_HDMITXPLL_RESERVE[12:11] */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT12_11); > + > + /* TCL_EN */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT, > + RG_HDMITXPLL_TCL_EN); > + > + /* disable read calibration impedance from efuse */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_1, > + 0x1f << RG_INTR_IMP_RG_MODE_SHIFT, > + RG_INTR_IMP_RG_MODE); > + > + return 0; > +} > + > +static int > +mtk_hdmi_pll_set_hw(struct clk_hw *hw, > + unsigned char prediv, > + unsigned char fbkdiv_high, unsigned long > fbkdiv_low, > + unsigned char fbkdiv_hs3, unsigned char posdiv1, > + unsigned char posdiv2, unsigned char txprediv, > + unsigned char txposdiv, unsigned char > digital_div) > +{ > + unsigned char txposdiv_value = 0; > + unsigned char div3_ctrl_value = 0; > + unsigned char posdiv_vallue = 0; > + unsigned char div_ctrl_value = 0; > + unsigned char reserve_3_2_value = 0; > + unsigned char prediv_value = 0; > + unsigned char reserve13_value = 0; > + > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + mtk_hdmi_pll_select_source(hw); > + > + mtk_hdmi_pll_performance_setting(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT, > + RG_HDMITX21_BIAS_PE_BG_VREF_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT, > + RG_HDMITX21_VREF_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9, > + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT, > + RG_HDMITX21_SLDO_VREF_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT, > + RG_HDMITX21_BIAS_PE_VREF_SELB); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT, > + RG_HDMITX21_SLDOLPF_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT, > + RG_HDMITX21_INTR_CAL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x1 << RG_HDMITXPLL_PWD_SHIFT, > RG_HDMITXPLL_PWD); > + > + /* TXPOSDIV */ > + if (txposdiv == 1) > + txposdiv_value = 0x0; > + else if (txposdiv == 2) > + txposdiv_value = 0x1; > + else if (txposdiv == 4) > + txposdiv_value = 0x2; > + else if (txposdiv == 8) > + txposdiv_value = 0x3; > + else > + return -EINVAL; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + txposdiv_value << > RG_HDMITX21_TX_POSDIV_SHIFT, > + RG_HDMITX21_TX_POSDIV); > + > + /* /5, tmds_clk_frequency = tmds_data_frequency / 5 */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT, > + RG_HDMITX21_TX_POSDIV_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_FRL_EN_SHIFT, > RG_HDMITX21_FRL_EN); > + > + /* TXPREDIV */ > + if (txprediv == 2) { > + div3_ctrl_value = 0x0; > + posdiv_vallue = 0x0; > + } else if (txprediv == 4) { > + div3_ctrl_value = 0x0; > + posdiv_vallue = 0x1; > + } else if (txprediv == 6) { > + div3_ctrl_value = 0x1; > + posdiv_vallue = 0x0; > + } else if (txprediv == 12) { > + div3_ctrl_value = 0x1; > + posdiv_vallue = 0x1; > + } else > + return -EINVAL; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + div3_ctrl_value > + << > RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT, > + RG_HDMITXPLL_POSDIV_DIV3_CTRL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT, > + RG_HDMITXPLL_POSDIV); > + > + /* POSDIV1 */ > + if (posdiv1 == 5) > + div_ctrl_value = 0x0; > + else if (posdiv1 == 10) > + div_ctrl_value = 0x1; > + else if (posdiv1 == (125 / 10)) > + div_ctrl_value = 0x2; > + else if (posdiv1 == 15) > + div_ctrl_value = 0x3; > + else > + div_ctrl_value = 0x1; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + div_ctrl_value << > RG_HDMITXPLL_DIV_CTRL_SHIFT, > + RG_HDMITXPLL_DIV_CTRL); > + > + /* DE add new setting */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT14); > + > + /* POSDIV2 */ > + if (posdiv2 == 1) > + reserve_3_2_value = 0x0; > + else if (posdiv2 == 2) > + reserve_3_2_value = 0x1; > + else if (posdiv2 == 4) > + reserve_3_2_value = 0x2; > + else if (posdiv2 == 6) > + reserve_3_2_value = 0x3; > + else > + reserve_3_2_value = 0x1; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + reserve_3_2_value > + << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT3_2); > + > + /* DE add new setting */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT1_0); > + > + /* PREDIV */ > + if (prediv == 1) > + prediv_value = 0x0; > + else if (prediv == 2) > + prediv_value = 0x1; > + else if (prediv == 4) > + prediv_value = 0x2; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + prediv_value << RG_HDMITXPLL_PREDIV_SHIFT, > + RG_HDMITXPLL_PREDIV); > + > + /* FBKDIV_HS3 */ > + if (fbkdiv_hs3 == 1) > + reserve13_value = 0x0; > + else if (fbkdiv_hs3 == 2) > + reserve13_value = 0x1; > + else > + return -EINVAL; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + reserve13_value << > RG_HDMITXPLL_RESERVE_BIT13_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT13); > + > + /* FBDIV */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + fbkdiv_high << > RG_HDMITXPLL_FBKDIV_high_SHIFT, > + RG_HDMITXPLL_FBKDIV_high); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3, > + fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT, > + RG_HDMITXPLL_FBKDIV_low); > + > + /* Digital DIVIDER */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT, > + REG_PIXEL_CLOCK_SEL); > + > + if (digital_div == 1) > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT, > + REG_HDMITX_PIXEL_CLOCK); > + else { > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT, > + REG_HDMITX_PIXEL_CLOCK); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + (digital_div - 1) << > REG_HDMITXPLL_DIV_SHIFT, > + REG_HDMITXPLL_DIV); > + } > + > + return 0; > +} > + > +#define PCW_DECIMAL_WIDTH 24 > + > +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, > + unsigned long rate, > + unsigned long parent_rate) > +{ > + int ret; > + unsigned long long tmds_clk = 0; > + unsigned long long pixel_clk = 0; > + //ref clock from hdmi Rx > + unsigned long long hdmirx_ref_ck = 0; > + //ref clock from tvd pll > + unsigned long long ad_respll_ck = 0; > + //pll input source frequency > + unsigned long long da_hdmitx21_ref_ck = 0; > + unsigned long long ns_hdmipll_ck = 0; //ICO output clk > + //source clk for Display digital > + unsigned long long ad_hdmipll_pixel_ck = 0; > + unsigned char digital_div = 0; > + unsigned long long pcw = 0; //FBDIV > + unsigned char txprediv = 0; > + unsigned char txposdiv = 0; > + unsigned char fbkdiv_high = 0; > + unsigned long fbkdiv_low = 0; > + unsigned char posdiv1 = 0; > + unsigned char posdiv2 = 0; > + unsigned char prediv = 1; //prediv is always 1 > + unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1 > + int i = 0; > + unsigned char TXPREDIV[4] = { 2, 4, 6, 12 }; > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + tmds_clk = rate; > + da_hdmitx21_ref_ck = 26000000UL; //in HZ > + > + /* TXPOSDIV stage treatment: > + * 0M < TMDS clk < 54M /8 > + * 54M <= TMDS clk < 148.35M /4 > + * 148.35M <=TMDS clk < 296.7M /2 > + * 296.7 <=TMDS clk <= 594M /1 > + */ > + if (tmds_clk < 54000000UL) > + txposdiv = 8; > + else if ((tmds_clk >= 54000000UL) && (tmds_clk < 148350000UL)) > + txposdiv = 4; > + else if ((tmds_clk >= 148350000UL) && (tmds_clk < 296700000UL)) > + txposdiv = 2; > + else if ((tmds_clk >= 296700000UL) && (tmds_clk <= > 594000000UL)) > + txposdiv = 1; > + else > + return -EINVAL; > + > + /* calculate TXPREDIV: can be 2, 4, 6, 12 > + * ICO clk = 5*TMDS_CLK*TXPOSDIV*TXPREDIV > + * ICO clk constraint: 5G =< ICO clk <= 12G > + */ > + for (i = 0; i < ARRAY_SIZE(TXPREDIV); i++) { > + ns_hdmipll_ck = 5 * tmds_clk * txposdiv * TXPREDIV[i]; > + if ((ns_hdmipll_ck >= 5000000000UL) && > + (ns_hdmipll_ck <= 12000000000UL)) > + break; > + } > + if ((i == (ARRAY_SIZE(TXPREDIV) - 1)) && > + ((ns_hdmipll_ck < 5000000000UL) || > + (ns_hdmipll_ck > 12000000000UL))) { > + return -EINVAL; > + } > + txprediv = TXPREDIV[i]; > + > + /* PCW calculation: FBKDIV > + * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in / > FBKDIV_HS3; > + * RG_HDMITXPLL_FBKDIV[32:0]: > + * [32,24] 9bit integer, [23,0]:24bit fraction > + */ > + pcw = ns_hdmipll_ck; > + pcw = pcw << PCW_DECIMAL_WIDTH; > + pcw = pcw / da_hdmitx21_ref_ck; > + pcw = pcw / fbkdiv_hs3; > + > + if ((pcw / (1ULL << 32)) > 1) > + return -EINVAL; > + else if ((pcw / (1ULL << 32)) == 1) { > + fbkdiv_high = 1; > + fbkdiv_low = pcw % (1ULL << 32); > + } else { > + fbkdiv_high = 0; > + fbkdiv_low = pcw; > + } > + > + posdiv1 = 10; > + posdiv2 = 1; > + ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1; > + > + /* Digital clk divider, max /32 */ > + digital_div = ad_hdmipll_pixel_ck / pixel_clk; > + if (!((digital_div <= 32) && (digital_div >= 1))) > + return -EINVAL; > + > + ret = mtk_hdmi_pll_set_hw(hw, > + prediv, fbkdiv_high, fbkdiv_low, > fbkdiv_hs3, > + posdiv1, posdiv2, txprediv, > txposdiv, > + digital_div); > + if (ret) > + return -EINVAL; > + > + pr_debug("[HDMI][TXPLL] Parameter list:\n"); > + pr_debug("prediv = %d\n", prediv); > + pr_debug("pcw = %llx\n", pcw); > + pr_debug("fbkdiv_high = %x\n", fbkdiv_high); > + pr_debug("fbkdiv_low = %lx\n", fbkdiv_low); > + pr_debug("fbkdiv_hs3 = %d\n", fbkdiv_hs3); > + pr_debug("posdiv1 = %d\n", posdiv1); > + pr_debug("posdiv2 = %d\n", posdiv2); > + pr_debug("digital_div = %d\n", digital_div); > + pr_debug("txprediv = %d\n", txprediv); > + pr_debug("txposdiv = %d\n", txposdiv); > + return 0; > +} > + > +static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw) > +{ > + unsigned char data_channel_bias, clk_channel_bias; > + unsigned char impedance, impedance_en; > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + /* bias & impedance setting */ > + data_channel_bias = 0x3c; //24mA Use /* */ instead '//' > + clk_channel_bias = 0x34; //20mA > + impedance_en = 0xf; > + impedance = 0x36; //100ohm > + > + /* bias */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1, > + data_channel_bias << > RG_HDMITX21_DRV_IBIAS_D0_SHIFT, > + RG_HDMITX21_DRV_IBIAS_D0); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1, > + data_channel_bias << > RG_HDMITX21_DRV_IBIAS_D1_SHIFT, > + RG_HDMITX21_DRV_IBIAS_D1); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1, > + data_channel_bias << > RG_HDMITX21_DRV_IBIAS_D2_SHIFT, > + RG_HDMITX21_DRV_IBIAS_D2); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, > + clk_channel_bias << > RG_HDMITX21_DRV_IBIAS_CLK_SHIFT, > + RG_HDMITX21_DRV_IBIAS_CLK); > + > + /* impedance */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, > + impedance_en << RG_HDMITX21_DRV_IMP_EN_SHIFT, > + RG_HDMITX21_DRV_IMP_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, > + impedance << > RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT, > + RG_HDMITX21_DRV_IMP_D0_EN1); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, > + impedance << > RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT, > + RG_HDMITX21_DRV_IMP_D1_EN1); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, > + impedance << > RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT, > + RG_HDMITX21_DRV_IMP_D2_EN1); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, > + impedance << > RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT, > + RG_HDMITX21_DRV_IMP_CLK_EN1); > + return 0; > +} > + > +static int mtk_hdmi_pll_prepare(struct clk_hw *hw) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT, > + RG_HDMITX21_TX_POSDIV_EN); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, > + 0xf << RG_HDMITX21_SER_EN_SHIFT, > RG_HDMITX21_SER_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_D0_DRV_OP_EN_SHIFT, > + RG_HDMITX21_D0_DRV_OP_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_D1_DRV_OP_EN_SHIFT, > + RG_HDMITX21_D1_DRV_OP_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_D2_DRV_OP_EN_SHIFT, > + RG_HDMITX21_D2_DRV_OP_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_CK_DRV_OP_EN_SHIFT, > + RG_HDMITX21_CK_DRV_OP_EN); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_FRL_D0_EN_SHIFT, > + RG_HDMITX21_FRL_D0_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_FRL_D1_EN_SHIFT, > + RG_HDMITX21_FRL_D1_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_FRL_D2_EN_SHIFT, > + RG_HDMITX21_FRL_D2_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_FRL_CK_EN_SHIFT, > + RG_HDMITX21_FRL_CK_EN); > + > + mtk_hdmi_pll_drv_setting(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITX21_BG_PWD_SHIFT, > RG_HDMITX21_BG_PWD); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_BIAS_EN_SHIFT, > + RG_HDMITX21_BIAS_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > + 0x1 << RG_HDMITX21_CKLDO_EN_SHIFT, > + RG_HDMITX21_CKLDO_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > + 0xf << RG_HDMITX21_SLDO_EN_SHIFT, > + RG_HDMITX21_SLDO_EN); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + 0x1 << DA_HDMITXPLL_PWR_ON_SHIFT, > + DA_HDMITXPLL_PWR_ON); > + udelay(5); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + 0x0 << DA_HDMITXPLL_ISO_EN_SHIFT, > + DA_HDMITXPLL_ISO_EN); > + udelay(5); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x0 << RG_HDMITXPLL_PWD_SHIFT, > RG_HDMITXPLL_PWD); > + udelay(30); > + > + return 0; > +} > + > +static void mtk_hdmi_pll_unprepare(struct clk_hw *hw) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x1 << RG_HDMITX21_BG_PWD_SHIFT, > RG_HDMITX21_BG_PWD); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_BIAS_EN_SHIFT, > + RG_HDMITX21_BIAS_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > + 0x0 << RG_HDMITX21_CKLDO_EN_SHIFT, > + RG_HDMITX21_CKLDO_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > + 0x0 << RG_HDMITX21_SLDO_EN_SHIFT, > + RG_HDMITX21_SLDO_EN); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x1 << RG_HDMITXPLL_PWD_SHIFT, > RG_HDMITXPLL_PWD); > + udelay(10); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + 0x1 << DA_HDMITXPLL_ISO_EN_SHIFT, > + DA_HDMITXPLL_ISO_EN); > + udelay(10); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + 0x0 << DA_HDMITXPLL_PWR_ON_SHIFT, > + DA_HDMITXPLL_PWR_ON); > +} > + > +static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long > rate, > + unsigned long parent_rate) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + int ret; > + > + dev_dbg(hdmi_phy->dev, "%s: %lu Hz, parent: %lu Hz\n", > __func__, rate, > + parent_rate); > + > + ret = mtk_hdmi_pll_calculate_params(hw, rate, parent_rate); > + if (ret) > + return -EINVAL; > + > + return 0; > +} > + > +static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long > rate, > + unsigned long *parent_rate) > +{ > + return rate; > +} > + > +static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw, > + unsigned long > parent_rate) > +{ > + return parent_rate; > +} > + > +static const struct clk_ops mtk_hdmi_pll_ops = { > + .prepare = mtk_hdmi_pll_prepare, > + .unprepare = mtk_hdmi_pll_unprepare, > + .set_rate = mtk_hdmi_pll_set_rate, > + .round_rate = mtk_hdmi_pll_round_rate, > + .recalc_rate = mtk_hdmi_pll_recalc_rate, > +}; > + > +static void vTxSignalOnOff(struct mtk_hdmi_phy *hdmi_phy, bool > OnOff) Please avoid Camel-Case code style > +{ > + if (OnOff) > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, > RG_HDMITX21_DRV_EN, > + RG_HDMITX21_DRV_EN); > + else > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, > + 0x0 << RG_HDMITX21_DRV_EN_SHIFT, > + RG_HDMITX21_DRV_EN); > +} > + > +static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy) > +{ > + vTxSignalOnOff(hdmi_phy, true); > + usleep_range(100, 150); > +} > + > +static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy) > +{ > + vTxSignalOnOff(hdmi_phy, false); > +} > + > +static int mtk_hdmi_phy_power_on(struct phy *phy) > +{ > + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy); > + int ret; > + > + if (!__clk_is_enabled(hdmi_phy->pll)) { > + ret = clk_prepare_enable(hdmi_phy->pll); > + if (ret < 0) > + return ret; > + } > + udelay(10); > + mtk_hdmi_phy_enable_tmds(hdmi_phy); > + > + return 0; > +} > + > +static int mtk_hdmi_phy_power_off(struct phy *phy) > +{ > + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy); > + > + mtk_hdmi_phy_disable_tmds(hdmi_phy); > + udelay(10); > + if (__clk_is_enabled(hdmi_phy->pll)) > + clk_disable_unprepare(hdmi_phy->pll); > + > + return 0; > +} > + > +static const struct phy_ops mtk_hdmi_phy_ops = { > + .power_on = mtk_hdmi_phy_power_on, > + .power_off = mtk_hdmi_phy_power_off, > + .owner = THIS_MODULE, > +}; > + > +static int mtk_hdmi_phy_probe(struct platform_device *pdev) Why not apply this driver based on phy-mtk-hdmi.c like mt8173? > +{ > + struct device *dev = &pdev->dev; > + struct mtk_hdmi_phy *hdmi_phy; > + struct resource *mem; > + struct phy *phy; > + struct phy_provider *phy_provider; > + struct clk *ref_clk; > + const char *ref_clk_name; > + struct clk_init_data clk_init = { > + .ops = &mtk_hdmi_pll_ops, > + .num_parents = 1, > + .parent_names = (const char *const *)&ref_clk_name, > + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, > + }; > + int ret; > + > + hdmi_phy = devm_kzalloc(dev, sizeof(*hdmi_phy), GFP_KERNEL); > + if (!hdmi_phy) > + return -ENOMEM; > + > + ref_clk = devm_clk_get(dev, "hdmi_xtal_sel"); > + if (IS_ERR(ref_clk)) { > + ret = PTR_ERR(ref_clk); > + dev_err(&pdev->dev, "Failed to get PLL reference clock: > %d\n", > + ret); > + return ret; > + } > + ref_clk_name = __clk_get_name(ref_clk); > + > + ret = of_property_read_string(dev->of_node, "clock-output- > names", > + &clk_init.name); > + if (ret < 0) > + return ret; > + > + hdmi_phy->pll_hw.init = &clk_init; > + hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw); > + if (IS_ERR(hdmi_phy->pll)) { > + ret = PTR_ERR(hdmi_phy->pll); > + return ret; > + } > + > + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + hdmi_phy->regs = devm_ioremap_resource(dev, mem); > + if (IS_ERR(hdmi_phy->regs)) { > + ret = PTR_ERR(hdmi_phy->regs); > + return ret; > + } > + > + phy = devm_phy_create(dev, NULL, &mtk_hdmi_phy_ops); > + if (IS_ERR(phy)) > + return PTR_ERR(phy); > + > + phy_set_drvdata(phy, hdmi_phy); > + > + phy_provider = devm_of_phy_provider_register(dev, > of_phy_simple_xlate); > + if (IS_ERR(phy_provider)) > + return PTR_ERR(phy_provider); > + > + hdmi_phy->dev = dev; > + > + return of_clk_add_provider(dev->of_node, of_clk_src_simple_get, > + hdmi_phy->pll); > +} > + > +static int mtk_hdmi_phy_remove(struct platform_device *pdev) > +{ > + return 0; > +} > + > +static const struct of_device_id mtk_hdmi_phy_match[] = { > + { > + .compatible = "mediatek,mt8195-hdmi-phy", > + }, > + {}, > +}; > + > +struct platform_driver mtk_hdmi_phy_mt8195_driver = { > + .probe = mtk_hdmi_phy_probe, > + .remove = mtk_hdmi_phy_remove, > + .driver = { > + .name = "mediatek-hdmi-mt8195-phy", > + .of_match_table = mtk_hdmi_phy_match, > + }, > +}; > +module_platform_driver(mtk_hdmi_phy_mt8195_driver); > + > +MODULE_AUTHOR("Can Zeng <can.zeng@mediatek.com>"); > +MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver"); > +MODULE_LICENSE("GPL v2"); > diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h > b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h > new file mode 100644 > index 000000000000..7d2c5a11e613 > --- /dev/null > +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h > @@ -0,0 +1,179 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* > + * Copyright (c) 2019 MediaTek Inc. > + */ > + > +#ifndef _MTK_HDMI_PHY_8195_H > +#define _MTK_HDMI_PHY_8195_H > + > +#include <linux/types.h> > +#include <linux/clk.h> > +#include <linux/clk-provider.h> > + > +#define HDMI_ANA_CTL 0x7c > +#define reg_ana_hdmi20_fifo_en (0x1 << 16) Use BIT(), and upper case letters > +#define reg_txc_div_SHIFT (30) Also for the XXX_SHIFT, try to use BIT() instead > +#define HDMI_CTL_3 0xcc > +#define REG_HDMITX_REF_RESPLL_SEL_SHIFT (9) > +#define REG_HDMITX_REF_RESPLL_SEL BIT(9) > +#define reg_txc_div (0x3 << 30) Use GENMASK(), the same for the following ones Thanks a lot > +#define HDMI_1_CFG_0 0x00 > +#define RG_HDMITX21_SER_EN (0xf << 28) > +#define RG_HDMITX21_DRV_EN (0xf << 24) > +#define RG_HDMITX21_DRV_IMP_EN (0xf << 20) > +#define RG_HDMITX21_DRV_IBIAS_CLK (0x3f << 5) > +#define RG_HDMITX21_SER_EN_SHIFT (28) > +#define RG_HDMITX21_DRV_EN_SHIFT (24) > +#define RG_HDMITX21_DRV_IMP_EN_SHIFT (20) > +#define RG_HDMITX21_DRV_IBIAS_CLK_SHIFT (5) > +#define HDMI_1_CFG_1 0x04 > +#define RG_HDMITX21_DRV_IBIAS_D2 (0x3f << 26) > +#define RG_HDMITX21_DRV_IBIAS_D1 (0x3f << 20) > +#define RG_HDMITX21_DRV_IBIAS_D0 (0x3f << 14) > +#define RG_HDMITX21_DRV_IBIAS_D2_SHIFT (26) > +#define RG_HDMITX21_DRV_IBIAS_D1_SHIFT (20) > +#define RG_HDMITX21_DRV_IBIAS_D0_SHIFT (14) > +#define HDMI_1_CFG_2 0x08 > +#define RG_HDMITX21_DRV_IMP_CLK_EN1 (0x3f << 26) > +#define RG_HDMITX21_DRV_IMP_D2_EN1 (0x3f << 20) > +#define RG_HDMITX21_DRV_IMP_D1_EN1 (0x3f << 14) > +#define RG_HDMITX21_DRV_IMP_D0_EN1 (0x3f << 8) > +#define RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT (26) > +#define RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT (20) > +#define RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT (14) > +#define RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT (8) > +#define HDMI_1_CFG_3 0x0c > +#define RG_HDMITX21_SLDO_EN (0xf << 8) > +#define RG_HDMITX21_SLDOLPF_EN (0x1 << 7) > +#define RG_HDMITX21_CKLDO_EN (0x1 << 3) > +#define RG_HDMITX21_SLDO_EN_SHIFT (8) > +#define RG_HDMITX21_SLDOLPF_EN_SHIFT (7) > +#define RG_HDMITX21_CKLDO_EN_SHIFT (3) > +#define HDMI_1_CFG_6 0x18 > +#define RG_HDMITX21_BIAS_EN (0x1 << 29) > +#define RG_HDMITX21_TX_POSDIV_EN (0x1 << 28) > +#define RG_HDMITX21_TX_POSDIV (0x3 << 26) > +#define RG_HDMITX21_INTR_CAL (0x1f << 18) > +#define RG_HDMITX21_FRL_D2_EN (0x1 << 16) > +#define RG_HDMITX21_FRL_D1_EN (0x1 << 15) > +#define RG_HDMITX21_FRL_D0_EN (0x1 << 14) > +#define RG_HDMITX21_FRL_CK_EN (0x1 << 13) > +#define RG_HDMITX21_FRL_EN (0x1 << 12) > +#define RG_HDMITX21_CK_DRV_OP_EN (0x1 << 11) > +#define RG_HDMITX21_D0_DRV_OP_EN (0x1 << 10) > +#define RG_HDMITX21_D1_DRV_OP_EN (0x1 << 9) > +#define RG_HDMITX21_D2_DRV_OP_EN (0x1 << 8) > +#define RG_HDMITX21_BIAS_EN_SHIFT (29) > +#define RG_HDMITX21_TX_POSDIV_EN_SHIFT (28) > +#define RG_HDMITX21_TX_POSDIV_SHIFT (26) > +#define RG_HDMITX21_INTR_CAL_SHIFT (18) > +#define RG_HDMITX21_FRL_D2_EN_SHIFT (16) > +#define RG_HDMITX21_FRL_D1_EN_SHIFT (15) > +#define RG_HDMITX21_FRL_D0_EN_SHIFT (14) > +#define RG_HDMITX21_FRL_CK_EN_SHIFT (13) > +#define RG_HDMITX21_FRL_EN_SHIFT (12) > +#define RG_HDMITX21_CK_DRV_OP_EN_SHIFT (11) > +#define RG_HDMITX21_D0_DRV_OP_EN_SHIFT (10) > +#define RG_HDMITX21_D1_DRV_OP_EN_SHIFT (9) > +#define RG_HDMITX21_D2_DRV_OP_EN_SHIFT (8) > +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1 (0x1f << 27) > +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1 (0x1f << 22) > +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1 (0x1f << 17) > +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1_SHIFT (27) > +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1_SHIFT (22) > +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1_SHIFT (17) > +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2 (0xf << 28) > +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2 (0xf << 24) > +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2 (0xf << 20) > +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2_SHIFT (28) > +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2_SHIFT (24) > +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2_SHIFT (20) > +#define HDMI_1_CFG_9 0x24 > +#define RG_HDMITX21_SLDO_VREF_SEL (0x3 << 4) > +#define RG_HDMITX21_SLDO_VREF_SEL_SHIFT (4) > +#define HDMI_1_CFG_10 0x40 > +#define RG_HDMITX21_BG_PWD (0x1 << 20) > +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL (0x3 << 15) > +#define RG_HDMITX21_BIAS_PE_VREF_SELB (0x1 << 10) > +#define RG_HDMITX21_VREF_SEL (0x1 << 4) > +#define RG_HDMITXPLL_REF_CK_SEL (0x3 << 1) > +#define RG_HDMITX21_BG_PWD_SHIFT (20) > +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT (15) > +#define RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT (10) > +#define RG_HDMITX21_VREF_SEL_SHIFT (4) > +#define RG_HDMITXPLL_REF_CK_SEL_SHIFT (1) > +#define HDMI_1_PLL_CFG_0 0x44 > +#define RG_HDMITXPLL_TCL_EN (0x1 << 31) > +#define RG_HDMITXPLL_BP2 (0x1 << 30) > +#define RG_HDMITXPLL_LVR_SEL (0x3 << 26) > +#define RG_HDMITXPLL_IBAND_FIX_EN (0x1 << 24) > +#define RG_HDMITXPLL_HREN (0x3 << 12) > +#define RG_HDMITXPLL_TCL_EN_SHIFT (31) > +#define RG_HDMITXPLL_BP2_SHIFT (30) > +#define RG_HDMITXPLL_LVR_SEL_SHIFT (26) > +#define RG_HDMITXPLL_IBAND_FIX_EN_SHIFT (24) > +#define RG_HDMITXPLL_HREN_SHIFT (12) > +#define HDMI_1_PLL_CFG_1 0x48 > +#define RG_HDMITXPLL_RESERVE (0xffff << 0) > +#define RG_HDMITXPLL_RESERVE_BIT13 BIT(13) > +#define RG_HDMITXPLL_RESERVE_BIT14 BIT(14) > +#define RG_HDMITXPLL_RESERVE_BIT12_11 GENMASK(12, 11) > +#define RG_HDMITXPLL_RESERVE_BIT3_2 GENMASK(3, 2) > +#define RG_HDMITXPLL_RESERVE_BIT1_0 GENMASK(1, 0) > +#define RG_HDMITXPLL_RESERVE_SHIFT (0) > +#define RG_HDMITXPLL_RESERVE_BIT13_SHIFT (13) > +#define RG_HDMITXPLL_RESERVE_BIT14_SHIFT (14) > +#define RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT (11) > +#define RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT (2) > +#define RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT (0) > +#define HDMI_1_PLL_CFG_2 0x4c > +#define RG_HDMITXPLL_PWD (0x1 << 31) > +#define RG_HDMITXPLL_HIKVCO (0x1 << 29) > +#define RG_HDMITXPLL_BC (0x3 << 27) > +#define RG_HDMITXPLL_IC (0x1f << 22) > +#define RG_HDMITXPLL_BR (0x7 << 19) > +#define RG_HDMITXPLL_IR (0x1f << 14) > +#define RG_HDMITXPLL_BP (0xf << 10) > +#define RG_HDMITXPLL_PWD_SHIFT (31) > +#define RG_HDMITXPLL_HIKVCO_SHIFT (29) > +#define RG_HDMITXPLL_BC_SHIFT (27) > +#define RG_HDMITXPLL_IC_SHIFT (22) > +#define RG_HDMITXPLL_BR_SHIFT (19) > +#define RG_HDMITXPLL_IR_SHIFT (14) > +#define RG_HDMITXPLL_BP_SHIFT (10) > +#define HDMI_1_PLL_CFG_3 0x50 > +#define RG_HDMITXPLL_FBKDIV_low (0xffffffff << 0) > +#define RG_HDMITXPLL_FBKDIV_low_SHIFT (0) > +#define HDMI_1_PLL_CFG_4 0x54 > +#define RG_HDMITXPLL_FBKDIV_high (0x1 << 31) > +#define RG_HDMITXPLL_PREDIV (0x3 << 28) > +#define RG_HDMITXPLL_DIV_CTRL (0x3 << 24) > +#define RG_HDMITXPLL_POSDIV (0x3 << 22) > +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL (0x1 << 21) > +#define DA_HDMITXPLL_PWR_ON (0x1 << 2) > +#define DA_HDMITXPLL_ISO_EN (0x1 << 1) > +#define RG_HDMITXPLL_FBKDIV_high_SHIFT (31) > +#define RG_HDMITXPLL_PREDIV_SHIFT (28) > +#define RG_HDMITXPLL_DIV_CTRL_SHIFT (24) > +#define RG_HDMITXPLL_POSDIV_SHIFT (22) > +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT (21) > +#define DA_HDMITXPLL_PWR_ON_SHIFT (2) > +#define DA_HDMITXPLL_ISO_EN_SHIFT (1) > +#define HDMI20_CLK_CFG 0x70 > +#define HDMI_1_CFG_21 0x84 > +#define HDMI_1_CFG_22 0x88 > +#define RG_HDMITX21_INTR_CAL_READOUT GENMASK(22, 18) > +#define RG_HDMITX21_INTR_CAL_READOUT_SHIFT (18) > +#define HDMI_CTL_1 0xc4 > +#define RG_INTR_IMP_RG_MODE GENMASK(7, 3) > +#define RG_INTR_IMP_RG_MODE_SHIFT (3) > +#define REG_HDMITX_PIXEL_CLOCK BIT(23) > +#define REG_PIXEL_CLOCK_SEL BIT(10) > +#define REG_HDMITX_REF_XTAL_SEL BIT(7) > +#define REG_HDMITXPLL_DIV GENMASK(4, 0) > +#define REG_HDMITX_PIXEL_CLOCK_SHIFT (23) > +#define REG_PIXEL_CLOCK_SEL_SHIFT (10) > +#define REG_HDMITX_REF_XTAL_SEL_SHIFT (7) > +#define REG_HDMITXPLL_DIV_SHIFT (0) > + > +#endif /* MTK_HDMI_PHY_8195_H */
On 07-09-21, 10:37, Guillaume Ranquet wrote: > Add basic support for the mediatek hdmi phy on MT8195 SoC > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> > --- > drivers/phy/mediatek/Makefile | 1 + > drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 777 +++++++++++++++++++++ > drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h | 179 +++++ > 3 files changed, 957 insertions(+) > create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h > > diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile > index ace660fbed3a..8024961160ad 100644 > --- a/drivers/phy/mediatek/Makefile > +++ b/drivers/phy/mediatek/Makefile > @@ -10,6 +10,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o > phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o > +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o > obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o > > phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o > diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > new file mode 100644 > index 000000000000..0cb46ab29257 > --- /dev/null > +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > @@ -0,0 +1,777 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (c) 2019 MediaTek Inc. 2021 > + */ > + > +#include <linux/delay.h> > +#include <linux/io.h> > +#include <linux/mfd/syscon.h> > +#include <linux/module.h> > +#include <linux/phy/phy.h> > +#include <linux/platform_device.h> > +#include <linux/types.h> > +#include <linux/nvmem-consumer.h> > + > +#include "phy-mtk-hdmi-mt8195.h" > +#include "phy-mtk-hdmi.h" > + > +static inline bool mtk_hdmi_phy_readbit(struct mtk_hdmi_phy *hdmi_phy, > + unsigned short reg, unsigned int offset) > +{ > + return (readl(hdmi_phy->regs + reg) & offset); > +} > + > +/*********Analog API export to HDMI Digital start*****/ > +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy) > +{ > + /*make data fifo writable for hdmi2.0*/ pls run checkpatch --strict to check for code style issues > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL, reg_ana_hdmi20_fifo_en, > + reg_ana_hdmi20_fifo_en); > +} > + > +void mtk_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy *hdmi_phy, bool enable) > +{ > + mtk_hdmi_ana_fifo_en(hdmi_phy); > + > + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G, > + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10 > + */ /* * I prefer this generic * kernel style, pls use this! */ > + if (enable) > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, > + (0x2 << reg_txc_div_SHIFT), reg_txc_div); > + else > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0, reg_txc_div); > +} > + > +/*********Analog API export to HDMI Digital end*******/ > + > +static int mtk_hdmi_pll_select_source(struct clk_hw *hw) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_HDMITX_REF_XTAL_SEL_SHIFT, > + REG_HDMITX_REF_XTAL_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_HDMITX_REF_RESPLL_SEL_SHIFT, > + REG_HDMITX_REF_RESPLL_SEL); Have you looked into helpers in bitfield.h, they help in avoiding using these shift defines > + > + /*DA_HDMITX21_REF_CK for TXPLL input source*/ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITXPLL_REF_CK_SEL_SHIFT, > + RG_HDMITXPLL_REF_CK_SEL); > + > + return 0; > +} > + > +static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw) > +{ > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + /* no matter pll input source is HDMIRX_REF_CK, xTal26M or TVD PLL, > + * the performance configuration is the same. > + * RG_HDMITXPLL_BP2 always 1'b1 = 0x1 > + * RG_HDMITXPLL_BC[1:0] always 2'b11 = 0x3 > + * RG_HDMITXPLL_IC[4:0] always 5'b00001 = 0x1 > + * RG_HDMITXPLL_BR[2:0] stage treatment: > + * 24bit or 48bit->3'b001 = 0x1 > + * 30bit or 36bit->3'b011 = 0x3 > + * RG_HDMITXPLL_IR[4:0] stage treatment: > + * 24bit,30bit,48bit ->5'b00010 = 0x2 > + * 36bit ->5'b00011 = 0x3 > + * RG_HDMITXPLL_BP[3:0] always 4'b1111 = 0xf > + * RG_HDMITXPLL_IBAND_FIX_EN, RG_HDMITXPLL_RESERVE[14] always 2'b00 = 0x0 > + * RG_HDMITXPLL_HIKVCO always 1'b1 = 0x1 > + */ > + > + /* BP2 */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_BP2_SHIFT, RG_HDMITXPLL_BP2); > + > + /* BC */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x3 << RG_HDMITXPLL_BC_SHIFT, RG_HDMITXPLL_BC); > + > + /* IC */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x1 << RG_HDMITXPLL_IC_SHIFT, RG_HDMITXPLL_IC); > + > + /* BR */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x2 << RG_HDMITXPLL_BR_SHIFT, > + RG_HDMITXPLL_BR); > + > + /* IR */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x2 << RG_HDMITXPLL_IR_SHIFT, > + RG_HDMITXPLL_IR); > + > + /* BP */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0xf << RG_HDMITXPLL_BP_SHIFT, RG_HDMITXPLL_BP); > + > + /* IBAND_FIX_EN, RESERVE[14] */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT, > + RG_HDMITXPLL_IBAND_FIX_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT14); > + > + /* HIKVCO */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT, > + RG_HDMITXPLL_HIKVCO); > + > + /* HREN */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_HREN_SHIFT, RG_HDMITXPLL_HREN); > + > + /* LVR_SEL */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT, > + RG_HDMITXPLL_LVR_SEL); > + > + /* RG_HDMITXPLL_RESERVE[12:11] */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT12_11); > + > + /* TCL_EN */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > + 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT, > + RG_HDMITXPLL_TCL_EN); > + > + /* disable read calibration impedance from efuse */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_1, > + 0x1f << RG_INTR_IMP_RG_MODE_SHIFT, > + RG_INTR_IMP_RG_MODE); > + > + return 0; > +} > + > +static int > +mtk_hdmi_pll_set_hw(struct clk_hw *hw, > + unsigned char prediv, > + unsigned char fbkdiv_high, unsigned long fbkdiv_low, > + unsigned char fbkdiv_hs3, unsigned char posdiv1, > + unsigned char posdiv2, unsigned char txprediv, > + unsigned char txposdiv, unsigned char digital_div) > +{ > + unsigned char txposdiv_value = 0; > + unsigned char div3_ctrl_value = 0; > + unsigned char posdiv_vallue = 0; > + unsigned char div_ctrl_value = 0; > + unsigned char reserve_3_2_value = 0; > + unsigned char prediv_value = 0; > + unsigned char reserve13_value = 0; > + > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > + > + mtk_hdmi_pll_select_source(hw); > + > + mtk_hdmi_pll_performance_setting(hw); > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT, > + RG_HDMITX21_BIAS_PE_BG_VREF_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT, > + RG_HDMITX21_VREF_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9, > + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT, > + RG_HDMITX21_SLDO_VREF_SEL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT, > + RG_HDMITX21_BIAS_PE_VREF_SELB); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT, > + RG_HDMITX21_SLDOLPF_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT, > + RG_HDMITX21_INTR_CAL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > + 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD); > + > + /* TXPOSDIV */ > + if (txposdiv == 1) > + txposdiv_value = 0x0; > + else if (txposdiv == 2) > + txposdiv_value = 0x1; > + else if (txposdiv == 4) > + txposdiv_value = 0x2; > + else if (txposdiv == 8) > + txposdiv_value = 0x3; > + else > + return -EINVAL; switch seems apt for this! > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + txposdiv_value << RG_HDMITX21_TX_POSDIV_SHIFT, > + RG_HDMITX21_TX_POSDIV); > + > + /* /5, tmds_clk_frequency = tmds_data_frequency / 5 */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT, > + RG_HDMITX21_TX_POSDIV_EN); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > + 0x0 << RG_HDMITX21_FRL_EN_SHIFT, RG_HDMITX21_FRL_EN); > + > + /* TXPREDIV */ > + if (txprediv == 2) { > + div3_ctrl_value = 0x0; > + posdiv_vallue = 0x0; > + } else if (txprediv == 4) { > + div3_ctrl_value = 0x0; > + posdiv_vallue = 0x1; > + } else if (txprediv == 6) { > + div3_ctrl_value = 0x1; > + posdiv_vallue = 0x0; > + } else if (txprediv == 12) { > + div3_ctrl_value = 0x1; > + posdiv_vallue = 0x1; > + } else > + return -EINVAL; here too > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + div3_ctrl_value > + << RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT, > + RG_HDMITXPLL_POSDIV_DIV3_CTRL); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT, > + RG_HDMITXPLL_POSDIV); > + > + /* POSDIV1 */ > + if (posdiv1 == 5) > + div_ctrl_value = 0x0; > + else if (posdiv1 == 10) > + div_ctrl_value = 0x1; > + else if (posdiv1 == (125 / 10)) > + div_ctrl_value = 0x2; > + else if (posdiv1 == 15) > + div_ctrl_value = 0x3; > + else > + div_ctrl_value = 0x1; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + div_ctrl_value << RG_HDMITXPLL_DIV_CTRL_SHIFT, > + RG_HDMITXPLL_DIV_CTRL); > + > + /* DE add new setting */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT14); > + > + /* POSDIV2 */ > + if (posdiv2 == 1) > + reserve_3_2_value = 0x0; > + else if (posdiv2 == 2) > + reserve_3_2_value = 0x1; > + else if (posdiv2 == 4) > + reserve_3_2_value = 0x2; > + else if (posdiv2 == 6) > + reserve_3_2_value = 0x3; > + else > + reserve_3_2_value = 0x1; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + reserve_3_2_value > + << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT3_2); > + > + /* DE add new setting */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT1_0); > + > + /* PREDIV */ > + if (prediv == 1) > + prediv_value = 0x0; > + else if (prediv == 2) > + prediv_value = 0x1; > + else if (prediv == 4) > + prediv_value = 0x2; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + prediv_value << RG_HDMITXPLL_PREDIV_SHIFT, > + RG_HDMITXPLL_PREDIV); > + > + /* FBKDIV_HS3 */ > + if (fbkdiv_hs3 == 1) > + reserve13_value = 0x0; > + else if (fbkdiv_hs3 == 2) > + reserve13_value = 0x1; > + else > + return -EINVAL; > + > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > + reserve13_value << RG_HDMITXPLL_RESERVE_BIT13_SHIFT, > + RG_HDMITXPLL_RESERVE_BIT13); > + > + /* FBDIV */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > + fbkdiv_high << RG_HDMITXPLL_FBKDIV_high_SHIFT, > + RG_HDMITXPLL_FBKDIV_high); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3, > + fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT, > + RG_HDMITXPLL_FBKDIV_low); > + > + /* Digital DIVIDER */ > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT, > + REG_PIXEL_CLOCK_SEL); > + > + if (digital_div == 1) > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT, > + REG_HDMITX_PIXEL_CLOCK); > + else { > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT, > + REG_HDMITX_PIXEL_CLOCK); > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > + (digital_div - 1) << REG_HDMITXPLL_DIV_SHIFT, > + REG_HDMITXPLL_DIV); > + } > + > + return 0; > +} > + > +#define PCW_DECIMAL_WIDTH 24 > + > +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, > + unsigned long rate, > + unsigned long parent_rate) > +{ > + int ret; > + unsigned long long tmds_clk = 0; > + unsigned long long pixel_clk = 0; > + //ref clock from hdmi Rx :(
Quoting Vinod Koul (2021-10-01 12:15:43) > On 07-09-21, 10:37, Guillaume Ranquet wrote: > > Add basic support for the mediatek hdmi phy on MT8195 SoC > > > > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> > > --- > > drivers/phy/mediatek/Makefile | 1 + > > drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 777 +++++++++++++++++++++ > > drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h | 179 +++++ > > 3 files changed, 957 insertions(+) > > create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > > create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h > > > > diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile > > index ace660fbed3a..8024961160ad 100644 > > --- a/drivers/phy/mediatek/Makefile > > +++ b/drivers/phy/mediatek/Makefile > > @@ -10,6 +10,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o > > phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o > > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o > > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o > > +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o > > obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o > > > > phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o > > diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > > new file mode 100644 > > index 000000000000..0cb46ab29257 > > --- /dev/null > > +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c > > @@ -0,0 +1,777 @@ > > +// SPDX-License-Identifier: GPL-2.0 > > +/* > > + * Copyright (c) 2019 MediaTek Inc. > > 2021 > > > + */ > > + > > +#include <linux/delay.h> > > +#include <linux/io.h> > > +#include <linux/mfd/syscon.h> > > +#include <linux/module.h> > > +#include <linux/phy/phy.h> > > +#include <linux/platform_device.h> > > +#include <linux/types.h> > > +#include <linux/nvmem-consumer.h> > > + > > +#include "phy-mtk-hdmi-mt8195.h" > > +#include "phy-mtk-hdmi.h" > > + > > +static inline bool mtk_hdmi_phy_readbit(struct mtk_hdmi_phy *hdmi_phy, > > + unsigned short reg, unsigned int offset) > > +{ > > + return (readl(hdmi_phy->regs + reg) & offset); > > +} > > + > > +/*********Analog API export to HDMI Digital start*****/ > > +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy) > > +{ > > + /*make data fifo writable for hdmi2.0*/ > > pls run checkpatch --strict to check for code style issues > > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL, reg_ana_hdmi20_fifo_en, > > + reg_ana_hdmi20_fifo_en); > > +} > > + > > +void mtk_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy *hdmi_phy, bool enable) > > +{ > > + mtk_hdmi_ana_fifo_en(hdmi_phy); > > + > > + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G, > > + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10 > > + */ > > /* > * I prefer this generic > * kernel style, pls use this! > */ > > > + if (enable) > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, > > + (0x2 << reg_txc_div_SHIFT), reg_txc_div); > > + else > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0, reg_txc_div); > > +} > > + > > +/*********Analog API export to HDMI Digital end*******/ > > + > > +static int mtk_hdmi_pll_select_source(struct clk_hw *hw) > > +{ > > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > > + 0x0 << REG_HDMITX_REF_XTAL_SEL_SHIFT, > > + REG_HDMITX_REF_XTAL_SEL); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > > + 0x0 << REG_HDMITX_REF_RESPLL_SEL_SHIFT, > > + REG_HDMITX_REF_RESPLL_SEL); > > Have you looked into helpers in bitfield.h, they help in avoiding using > these shift defines > > > + > > + /*DA_HDMITX21_REF_CK for TXPLL input source*/ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > > + 0x0 << RG_HDMITXPLL_REF_CK_SEL_SHIFT, > > + RG_HDMITXPLL_REF_CK_SEL); > > + > > + return 0; > > +} > > + > > +static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw) > > +{ > > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > > + > > + /* no matter pll input source is HDMIRX_REF_CK, xTal26M or TVD PLL, > > + * the performance configuration is the same. > > + * RG_HDMITXPLL_BP2 always 1'b1 = 0x1 > > + * RG_HDMITXPLL_BC[1:0] always 2'b11 = 0x3 > > + * RG_HDMITXPLL_IC[4:0] always 5'b00001 = 0x1 > > + * RG_HDMITXPLL_BR[2:0] stage treatment: > > + * 24bit or 48bit->3'b001 = 0x1 > > + * 30bit or 36bit->3'b011 = 0x3 > > + * RG_HDMITXPLL_IR[4:0] stage treatment: > > + * 24bit,30bit,48bit ->5'b00010 = 0x2 > > + * 36bit ->5'b00011 = 0x3 > > + * RG_HDMITXPLL_BP[3:0] always 4'b1111 = 0xf > > + * RG_HDMITXPLL_IBAND_FIX_EN, RG_HDMITXPLL_RESERVE[14] always 2'b00 = 0x0 > > + * RG_HDMITXPLL_HIKVCO always 1'b1 = 0x1 > > + */ > > + > > + /* BP2 */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > > + 0x1 << RG_HDMITXPLL_BP2_SHIFT, RG_HDMITXPLL_BP2); > > + > > + /* BC */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0x3 << RG_HDMITXPLL_BC_SHIFT, RG_HDMITXPLL_BC); > > + > > + /* IC */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0x1 << RG_HDMITXPLL_IC_SHIFT, RG_HDMITXPLL_IC); > > + > > + /* BR */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0x2 << RG_HDMITXPLL_BR_SHIFT, > > + RG_HDMITXPLL_BR); > > + > > + /* IR */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0x2 << RG_HDMITXPLL_IR_SHIFT, > > + RG_HDMITXPLL_IR); > > + > > + /* BP */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0xf << RG_HDMITXPLL_BP_SHIFT, RG_HDMITXPLL_BP); > > + > > + /* IBAND_FIX_EN, RESERVE[14] */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > > + 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT, > > + RG_HDMITXPLL_IBAND_FIX_EN); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > > + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, > > + RG_HDMITXPLL_RESERVE_BIT14); > > + > > + /* HIKVCO */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT, > > + RG_HDMITXPLL_HIKVCO); > > + > > + /* HREN */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > > + 0x1 << RG_HDMITXPLL_HREN_SHIFT, RG_HDMITXPLL_HREN); > > + > > + /* LVR_SEL */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > > + 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT, > > + RG_HDMITXPLL_LVR_SEL); > > + > > + /* RG_HDMITXPLL_RESERVE[12:11] */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > > + 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT, > > + RG_HDMITXPLL_RESERVE_BIT12_11); > > + > > + /* TCL_EN */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, > > + 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT, > > + RG_HDMITXPLL_TCL_EN); > > + > > + /* disable read calibration impedance from efuse */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_1, > > + 0x1f << RG_INTR_IMP_RG_MODE_SHIFT, > > + RG_INTR_IMP_RG_MODE); > > + > > + return 0; > > +} > > + > > +static int > > +mtk_hdmi_pll_set_hw(struct clk_hw *hw, > > + unsigned char prediv, > > + unsigned char fbkdiv_high, unsigned long fbkdiv_low, > > + unsigned char fbkdiv_hs3, unsigned char posdiv1, > > + unsigned char posdiv2, unsigned char txprediv, > > + unsigned char txposdiv, unsigned char digital_div) > > +{ > > + unsigned char txposdiv_value = 0; > > + unsigned char div3_ctrl_value = 0; > > + unsigned char posdiv_vallue = 0; > > + unsigned char div_ctrl_value = 0; > > + unsigned char reserve_3_2_value = 0; > > + unsigned char prediv_value = 0; > > + unsigned char reserve13_value = 0; > > + > > + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); > > + > > + mtk_hdmi_pll_select_source(hw); > > + > > + mtk_hdmi_pll_performance_setting(hw); > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > > + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT, > > + RG_HDMITX21_BIAS_PE_BG_VREF_SEL); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > > + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT, > > + RG_HDMITX21_VREF_SEL); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9, > > + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT, > > + RG_HDMITX21_SLDO_VREF_SEL); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, > > + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT, > > + RG_HDMITX21_BIAS_PE_VREF_SELB); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, > > + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT, > > + RG_HDMITX21_SLDOLPF_EN); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > > + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT, > > + RG_HDMITX21_INTR_CAL); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, > > + 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD); > > + > > + /* TXPOSDIV */ > > + if (txposdiv == 1) > > + txposdiv_value = 0x0; > > + else if (txposdiv == 2) > > + txposdiv_value = 0x1; > > + else if (txposdiv == 4) > > + txposdiv_value = 0x2; > > + else if (txposdiv == 8) > > + txposdiv_value = 0x3; > > + else > > + return -EINVAL; > > switch seems apt for this! > > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > > + txposdiv_value << RG_HDMITX21_TX_POSDIV_SHIFT, > > + RG_HDMITX21_TX_POSDIV); > > + > > + /* /5, tmds_clk_frequency = tmds_data_frequency / 5 */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > > + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT, > > + RG_HDMITX21_TX_POSDIV_EN); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, > > + 0x0 << RG_HDMITX21_FRL_EN_SHIFT, RG_HDMITX21_FRL_EN); > > + > > + /* TXPREDIV */ > > + if (txprediv == 2) { > > + div3_ctrl_value = 0x0; > > + posdiv_vallue = 0x0; > > + } else if (txprediv == 4) { > > + div3_ctrl_value = 0x0; > > + posdiv_vallue = 0x1; > > + } else if (txprediv == 6) { > > + div3_ctrl_value = 0x1; > > + posdiv_vallue = 0x0; > > + } else if (txprediv == 12) { > > + div3_ctrl_value = 0x1; > > + posdiv_vallue = 0x1; > > + } else > > + return -EINVAL; > > here too > > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > > + div3_ctrl_value > > + << RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT, > > + RG_HDMITXPLL_POSDIV_DIV3_CTRL); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > > + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT, > > + RG_HDMITXPLL_POSDIV); > > + > > + /* POSDIV1 */ > > + if (posdiv1 == 5) > > + div_ctrl_value = 0x0; > > + else if (posdiv1 == 10) > > + div_ctrl_value = 0x1; > > + else if (posdiv1 == (125 / 10)) > > + div_ctrl_value = 0x2; > > + else if (posdiv1 == 15) > > + div_ctrl_value = 0x3; > > + else > > + div_ctrl_value = 0x1; > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > > + div_ctrl_value << RG_HDMITXPLL_DIV_CTRL_SHIFT, > > + RG_HDMITXPLL_DIV_CTRL); > > + > > + /* DE add new setting */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > > + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, > > + RG_HDMITXPLL_RESERVE_BIT14); > > + > > + /* POSDIV2 */ > > + if (posdiv2 == 1) > > + reserve_3_2_value = 0x0; > > + else if (posdiv2 == 2) > > + reserve_3_2_value = 0x1; > > + else if (posdiv2 == 4) > > + reserve_3_2_value = 0x2; > > + else if (posdiv2 == 6) > > + reserve_3_2_value = 0x3; > > + else > > + reserve_3_2_value = 0x1; > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > > + reserve_3_2_value > > + << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT, > > + RG_HDMITXPLL_RESERVE_BIT3_2); > > + > > + /* DE add new setting */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > > + 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT, > > + RG_HDMITXPLL_RESERVE_BIT1_0); > > + > > + /* PREDIV */ > > + if (prediv == 1) > > + prediv_value = 0x0; > > + else if (prediv == 2) > > + prediv_value = 0x1; > > + else if (prediv == 4) > > + prediv_value = 0x2; > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > > + prediv_value << RG_HDMITXPLL_PREDIV_SHIFT, > > + RG_HDMITXPLL_PREDIV); > > + > > + /* FBKDIV_HS3 */ > > + if (fbkdiv_hs3 == 1) > > + reserve13_value = 0x0; > > + else if (fbkdiv_hs3 == 2) > > + reserve13_value = 0x1; > > + else > > + return -EINVAL; > > + > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, > > + reserve13_value << RG_HDMITXPLL_RESERVE_BIT13_SHIFT, > > + RG_HDMITXPLL_RESERVE_BIT13); > > + > > + /* FBDIV */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, > > + fbkdiv_high << RG_HDMITXPLL_FBKDIV_high_SHIFT, > > + RG_HDMITXPLL_FBKDIV_high); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3, > > + fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT, > > + RG_HDMITXPLL_FBKDIV_low); > > + > > + /* Digital DIVIDER */ > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > > + 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT, > > + REG_PIXEL_CLOCK_SEL); > > + > > + if (digital_div == 1) > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > > + 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT, > > + REG_HDMITX_PIXEL_CLOCK); > > + else { > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > > + 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT, > > + REG_HDMITX_PIXEL_CLOCK); > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, > > + (digital_div - 1) << REG_HDMITXPLL_DIV_SHIFT, > > + REG_HDMITXPLL_DIV); > > + } > > + > > + return 0; > > +} > > + > > +#define PCW_DECIMAL_WIDTH 24 > > + > > +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, > > + unsigned long rate, > > + unsigned long parent_rate) > > +{ > > + int ret; > > + unsigned long long tmds_clk = 0; > > + unsigned long long pixel_clk = 0; > > + //ref clock from hdmi Rx > > :( > > -- > ~Vinod Hi Vinod. Thanks for your review. I've posted a V1 [1] this week that should answer your comments. I'm sorry if I messed up, I'm not really used to the linux community upstream process. Hope I can do better next time :) Thx, Guillaume. [1] : https://lore.kernel.org/linux-mediatek/20210929094425.745-1-granquet@baylibre.com/
diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile index ace660fbed3a..8024961160ad 100644 --- a/drivers/phy/mediatek/Makefile +++ b/drivers/phy/mediatek/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c new file mode 100644 index 000000000000..0cb46ab29257 --- /dev/null +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c @@ -0,0 +1,777 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019 MediaTek Inc. + */ + +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/types.h> +#include <linux/nvmem-consumer.h> + +#include "phy-mtk-hdmi-mt8195.h" +#include "phy-mtk-hdmi.h" + +static inline bool mtk_hdmi_phy_readbit(struct mtk_hdmi_phy *hdmi_phy, + unsigned short reg, unsigned int offset) +{ + return (readl(hdmi_phy->regs + reg) & offset); +} + +/*********Analog API export to HDMI Digital start*****/ +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy) +{ + /*make data fifo writable for hdmi2.0*/ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL, reg_ana_hdmi20_fifo_en, + reg_ana_hdmi20_fifo_en); +} + +void mtk_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy *hdmi_phy, bool enable) +{ + mtk_hdmi_ana_fifo_en(hdmi_phy); + + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G, + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10 + */ + if (enable) + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, + (0x2 << reg_txc_div_SHIFT), reg_txc_div); + else + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0, reg_txc_div); +} + +/*********Analog API export to HDMI Digital end*******/ + +static int mtk_hdmi_pll_select_source(struct clk_hw *hw) +{ + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, + 0x0 << REG_HDMITX_REF_XTAL_SEL_SHIFT, + REG_HDMITX_REF_XTAL_SEL); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, + 0x0 << REG_HDMITX_REF_RESPLL_SEL_SHIFT, + REG_HDMITX_REF_RESPLL_SEL); + + /*DA_HDMITX21_REF_CK for TXPLL input source*/ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, + 0x0 << RG_HDMITXPLL_REF_CK_SEL_SHIFT, + RG_HDMITXPLL_REF_CK_SEL); + + return 0; +} + +static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw) +{ + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + /* no matter pll input source is HDMIRX_REF_CK, xTal26M or TVD PLL, + * the performance configuration is the same. + * RG_HDMITXPLL_BP2 always 1'b1 = 0x1 + * RG_HDMITXPLL_BC[1:0] always 2'b11 = 0x3 + * RG_HDMITXPLL_IC[4:0] always 5'b00001 = 0x1 + * RG_HDMITXPLL_BR[2:0] stage treatment: + * 24bit or 48bit->3'b001 = 0x1 + * 30bit or 36bit->3'b011 = 0x3 + * RG_HDMITXPLL_IR[4:0] stage treatment: + * 24bit,30bit,48bit ->5'b00010 = 0x2 + * 36bit ->5'b00011 = 0x3 + * RG_HDMITXPLL_BP[3:0] always 4'b1111 = 0xf + * RG_HDMITXPLL_IBAND_FIX_EN, RG_HDMITXPLL_RESERVE[14] always 2'b00 = 0x0 + * RG_HDMITXPLL_HIKVCO always 1'b1 = 0x1 + */ + + /* BP2 */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, + 0x1 << RG_HDMITXPLL_BP2_SHIFT, RG_HDMITXPLL_BP2); + + /* BC */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x3 << RG_HDMITXPLL_BC_SHIFT, RG_HDMITXPLL_BC); + + /* IC */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x1 << RG_HDMITXPLL_IC_SHIFT, RG_HDMITXPLL_IC); + + /* BR */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x2 << RG_HDMITXPLL_BR_SHIFT, + RG_HDMITXPLL_BR); + + /* IR */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x2 << RG_HDMITXPLL_IR_SHIFT, + RG_HDMITXPLL_IR); + + /* BP */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0xf << RG_HDMITXPLL_BP_SHIFT, RG_HDMITXPLL_BP); + + /* IBAND_FIX_EN, RESERVE[14] */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, + 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT, + RG_HDMITXPLL_IBAND_FIX_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, + RG_HDMITXPLL_RESERVE_BIT14); + + /* HIKVCO */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT, + RG_HDMITXPLL_HIKVCO); + + /* HREN */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, + 0x1 << RG_HDMITXPLL_HREN_SHIFT, RG_HDMITXPLL_HREN); + + /* LVR_SEL */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, + 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT, + RG_HDMITXPLL_LVR_SEL); + + /* RG_HDMITXPLL_RESERVE[12:11] */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, + 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT, + RG_HDMITXPLL_RESERVE_BIT12_11); + + /* TCL_EN */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0, + 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT, + RG_HDMITXPLL_TCL_EN); + + /* disable read calibration impedance from efuse */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_1, + 0x1f << RG_INTR_IMP_RG_MODE_SHIFT, + RG_INTR_IMP_RG_MODE); + + return 0; +} + +static int +mtk_hdmi_pll_set_hw(struct clk_hw *hw, + unsigned char prediv, + unsigned char fbkdiv_high, unsigned long fbkdiv_low, + unsigned char fbkdiv_hs3, unsigned char posdiv1, + unsigned char posdiv2, unsigned char txprediv, + unsigned char txposdiv, unsigned char digital_div) +{ + unsigned char txposdiv_value = 0; + unsigned char div3_ctrl_value = 0; + unsigned char posdiv_vallue = 0; + unsigned char div_ctrl_value = 0; + unsigned char reserve_3_2_value = 0; + unsigned char prediv_value = 0; + unsigned char reserve13_value = 0; + + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + mtk_hdmi_pll_select_source(hw); + + mtk_hdmi_pll_performance_setting(hw); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT, + RG_HDMITX21_BIAS_PE_BG_VREF_SEL); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT, + RG_HDMITX21_VREF_SEL); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9, + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT, + RG_HDMITX21_SLDO_VREF_SEL); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT, + RG_HDMITX21_BIAS_PE_VREF_SELB); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT, + RG_HDMITX21_SLDOLPF_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT, + RG_HDMITX21_INTR_CAL); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD); + + /* TXPOSDIV */ + if (txposdiv == 1) + txposdiv_value = 0x0; + else if (txposdiv == 2) + txposdiv_value = 0x1; + else if (txposdiv == 4) + txposdiv_value = 0x2; + else if (txposdiv == 8) + txposdiv_value = 0x3; + else + return -EINVAL; + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + txposdiv_value << RG_HDMITX21_TX_POSDIV_SHIFT, + RG_HDMITX21_TX_POSDIV); + + /* /5, tmds_clk_frequency = tmds_data_frequency / 5 */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT, + RG_HDMITX21_TX_POSDIV_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x0 << RG_HDMITX21_FRL_EN_SHIFT, RG_HDMITX21_FRL_EN); + + /* TXPREDIV */ + if (txprediv == 2) { + div3_ctrl_value = 0x0; + posdiv_vallue = 0x0; + } else if (txprediv == 4) { + div3_ctrl_value = 0x0; + posdiv_vallue = 0x1; + } else if (txprediv == 6) { + div3_ctrl_value = 0x1; + posdiv_vallue = 0x0; + } else if (txprediv == 12) { + div3_ctrl_value = 0x1; + posdiv_vallue = 0x1; + } else + return -EINVAL; + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + div3_ctrl_value + << RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT, + RG_HDMITXPLL_POSDIV_DIV3_CTRL); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT, + RG_HDMITXPLL_POSDIV); + + /* POSDIV1 */ + if (posdiv1 == 5) + div_ctrl_value = 0x0; + else if (posdiv1 == 10) + div_ctrl_value = 0x1; + else if (posdiv1 == (125 / 10)) + div_ctrl_value = 0x2; + else if (posdiv1 == 15) + div_ctrl_value = 0x3; + else + div_ctrl_value = 0x1; + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + div_ctrl_value << RG_HDMITXPLL_DIV_CTRL_SHIFT, + RG_HDMITXPLL_DIV_CTRL); + + /* DE add new setting */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT, + RG_HDMITXPLL_RESERVE_BIT14); + + /* POSDIV2 */ + if (posdiv2 == 1) + reserve_3_2_value = 0x0; + else if (posdiv2 == 2) + reserve_3_2_value = 0x1; + else if (posdiv2 == 4) + reserve_3_2_value = 0x2; + else if (posdiv2 == 6) + reserve_3_2_value = 0x3; + else + reserve_3_2_value = 0x1; + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, + reserve_3_2_value + << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT, + RG_HDMITXPLL_RESERVE_BIT3_2); + + /* DE add new setting */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, + 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT, + RG_HDMITXPLL_RESERVE_BIT1_0); + + /* PREDIV */ + if (prediv == 1) + prediv_value = 0x0; + else if (prediv == 2) + prediv_value = 0x1; + else if (prediv == 4) + prediv_value = 0x2; + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + prediv_value << RG_HDMITXPLL_PREDIV_SHIFT, + RG_HDMITXPLL_PREDIV); + + /* FBKDIV_HS3 */ + if (fbkdiv_hs3 == 1) + reserve13_value = 0x0; + else if (fbkdiv_hs3 == 2) + reserve13_value = 0x1; + else + return -EINVAL; + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1, + reserve13_value << RG_HDMITXPLL_RESERVE_BIT13_SHIFT, + RG_HDMITXPLL_RESERVE_BIT13); + + /* FBDIV */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + fbkdiv_high << RG_HDMITXPLL_FBKDIV_high_SHIFT, + RG_HDMITXPLL_FBKDIV_high); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3, + fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT, + RG_HDMITXPLL_FBKDIV_low); + + /* Digital DIVIDER */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, + 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT, + REG_PIXEL_CLOCK_SEL); + + if (digital_div == 1) + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, + 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT, + REG_HDMITX_PIXEL_CLOCK); + else { + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, + 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT, + REG_HDMITX_PIXEL_CLOCK); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, + (digital_div - 1) << REG_HDMITXPLL_DIV_SHIFT, + REG_HDMITXPLL_DIV); + } + + return 0; +} + +#define PCW_DECIMAL_WIDTH 24 + +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, + unsigned long rate, + unsigned long parent_rate) +{ + int ret; + unsigned long long tmds_clk = 0; + unsigned long long pixel_clk = 0; + //ref clock from hdmi Rx + unsigned long long hdmirx_ref_ck = 0; + //ref clock from tvd pll + unsigned long long ad_respll_ck = 0; + //pll input source frequency + unsigned long long da_hdmitx21_ref_ck = 0; + unsigned long long ns_hdmipll_ck = 0; //ICO output clk + //source clk for Display digital + unsigned long long ad_hdmipll_pixel_ck = 0; + unsigned char digital_div = 0; + unsigned long long pcw = 0; //FBDIV + unsigned char txprediv = 0; + unsigned char txposdiv = 0; + unsigned char fbkdiv_high = 0; + unsigned long fbkdiv_low = 0; + unsigned char posdiv1 = 0; + unsigned char posdiv2 = 0; + unsigned char prediv = 1; //prediv is always 1 + unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1 + int i = 0; + unsigned char TXPREDIV[4] = { 2, 4, 6, 12 }; + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + tmds_clk = rate; + da_hdmitx21_ref_ck = 26000000UL; //in HZ + + /* TXPOSDIV stage treatment: + * 0M < TMDS clk < 54M /8 + * 54M <= TMDS clk < 148.35M /4 + * 148.35M <=TMDS clk < 296.7M /2 + * 296.7 <=TMDS clk <= 594M /1 + */ + if (tmds_clk < 54000000UL) + txposdiv = 8; + else if ((tmds_clk >= 54000000UL) && (tmds_clk < 148350000UL)) + txposdiv = 4; + else if ((tmds_clk >= 148350000UL) && (tmds_clk < 296700000UL)) + txposdiv = 2; + else if ((tmds_clk >= 296700000UL) && (tmds_clk <= 594000000UL)) + txposdiv = 1; + else + return -EINVAL; + + /* calculate TXPREDIV: can be 2, 4, 6, 12 + * ICO clk = 5*TMDS_CLK*TXPOSDIV*TXPREDIV + * ICO clk constraint: 5G =< ICO clk <= 12G + */ + for (i = 0; i < ARRAY_SIZE(TXPREDIV); i++) { + ns_hdmipll_ck = 5 * tmds_clk * txposdiv * TXPREDIV[i]; + if ((ns_hdmipll_ck >= 5000000000UL) && + (ns_hdmipll_ck <= 12000000000UL)) + break; + } + if ((i == (ARRAY_SIZE(TXPREDIV) - 1)) && + ((ns_hdmipll_ck < 5000000000UL) || + (ns_hdmipll_ck > 12000000000UL))) { + return -EINVAL; + } + txprediv = TXPREDIV[i]; + + /* PCW calculation: FBKDIV + * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in / FBKDIV_HS3; + * RG_HDMITXPLL_FBKDIV[32:0]: + * [32,24] 9bit integer, [23,0]:24bit fraction + */ + pcw = ns_hdmipll_ck; + pcw = pcw << PCW_DECIMAL_WIDTH; + pcw = pcw / da_hdmitx21_ref_ck; + pcw = pcw / fbkdiv_hs3; + + if ((pcw / (1ULL << 32)) > 1) + return -EINVAL; + else if ((pcw / (1ULL << 32)) == 1) { + fbkdiv_high = 1; + fbkdiv_low = pcw % (1ULL << 32); + } else { + fbkdiv_high = 0; + fbkdiv_low = pcw; + } + + posdiv1 = 10; + posdiv2 = 1; + ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1; + + /* Digital clk divider, max /32 */ + digital_div = ad_hdmipll_pixel_ck / pixel_clk; + if (!((digital_div <= 32) && (digital_div >= 1))) + return -EINVAL; + + ret = mtk_hdmi_pll_set_hw(hw, + prediv, fbkdiv_high, fbkdiv_low, fbkdiv_hs3, + posdiv1, posdiv2, txprediv, txposdiv, + digital_div); + if (ret) + return -EINVAL; + + pr_debug("[HDMI][TXPLL] Parameter list:\n"); + pr_debug("prediv = %d\n", prediv); + pr_debug("pcw = %llx\n", pcw); + pr_debug("fbkdiv_high = %x\n", fbkdiv_high); + pr_debug("fbkdiv_low = %lx\n", fbkdiv_low); + pr_debug("fbkdiv_hs3 = %d\n", fbkdiv_hs3); + pr_debug("posdiv1 = %d\n", posdiv1); + pr_debug("posdiv2 = %d\n", posdiv2); + pr_debug("digital_div = %d\n", digital_div); + pr_debug("txprediv = %d\n", txprediv); + pr_debug("txposdiv = %d\n", txposdiv); + return 0; +} + +static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw) +{ + unsigned char data_channel_bias, clk_channel_bias; + unsigned char impedance, impedance_en; + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + /* bias & impedance setting */ + data_channel_bias = 0x3c; //24mA + clk_channel_bias = 0x34; //20mA + impedance_en = 0xf; + impedance = 0x36; //100ohm + + /* bias */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1, + data_channel_bias << RG_HDMITX21_DRV_IBIAS_D0_SHIFT, + RG_HDMITX21_DRV_IBIAS_D0); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1, + data_channel_bias << RG_HDMITX21_DRV_IBIAS_D1_SHIFT, + RG_HDMITX21_DRV_IBIAS_D1); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1, + data_channel_bias << RG_HDMITX21_DRV_IBIAS_D2_SHIFT, + RG_HDMITX21_DRV_IBIAS_D2); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, + clk_channel_bias << RG_HDMITX21_DRV_IBIAS_CLK_SHIFT, + RG_HDMITX21_DRV_IBIAS_CLK); + + /* impedance */ + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, + impedance_en << RG_HDMITX21_DRV_IMP_EN_SHIFT, + RG_HDMITX21_DRV_IMP_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, + impedance << RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT, + RG_HDMITX21_DRV_IMP_D0_EN1); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, + impedance << RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT, + RG_HDMITX21_DRV_IMP_D1_EN1); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, + impedance << RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT, + RG_HDMITX21_DRV_IMP_D2_EN1); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2, + impedance << RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT, + RG_HDMITX21_DRV_IMP_CLK_EN1); + return 0; +} + +static int mtk_hdmi_pll_prepare(struct clk_hw *hw) +{ + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT, + RG_HDMITX21_TX_POSDIV_EN); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, + 0xf << RG_HDMITX21_SER_EN_SHIFT, RG_HDMITX21_SER_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_D0_DRV_OP_EN_SHIFT, + RG_HDMITX21_D0_DRV_OP_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_D1_DRV_OP_EN_SHIFT, + RG_HDMITX21_D1_DRV_OP_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_D2_DRV_OP_EN_SHIFT, + RG_HDMITX21_D2_DRV_OP_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_CK_DRV_OP_EN_SHIFT, + RG_HDMITX21_CK_DRV_OP_EN); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x0 << RG_HDMITX21_FRL_D0_EN_SHIFT, + RG_HDMITX21_FRL_D0_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x0 << RG_HDMITX21_FRL_D1_EN_SHIFT, + RG_HDMITX21_FRL_D1_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x0 << RG_HDMITX21_FRL_D2_EN_SHIFT, + RG_HDMITX21_FRL_D2_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x0 << RG_HDMITX21_FRL_CK_EN_SHIFT, + RG_HDMITX21_FRL_CK_EN); + + mtk_hdmi_pll_drv_setting(hw); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, + 0x0 << RG_HDMITX21_BG_PWD_SHIFT, RG_HDMITX21_BG_PWD); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x1 << RG_HDMITX21_BIAS_EN_SHIFT, + RG_HDMITX21_BIAS_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, + 0x1 << RG_HDMITX21_CKLDO_EN_SHIFT, + RG_HDMITX21_CKLDO_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, + 0xf << RG_HDMITX21_SLDO_EN_SHIFT, + RG_HDMITX21_SLDO_EN); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + 0x1 << DA_HDMITXPLL_PWR_ON_SHIFT, + DA_HDMITXPLL_PWR_ON); + udelay(5); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + 0x0 << DA_HDMITXPLL_ISO_EN_SHIFT, + DA_HDMITXPLL_ISO_EN); + udelay(5); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x0 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD); + udelay(30); + + return 0; +} + +static void mtk_hdmi_pll_unprepare(struct clk_hw *hw) +{ + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, + 0x1 << RG_HDMITX21_BG_PWD_SHIFT, RG_HDMITX21_BG_PWD); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6, + 0x0 << RG_HDMITX21_BIAS_EN_SHIFT, + RG_HDMITX21_BIAS_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, + 0x0 << RG_HDMITX21_CKLDO_EN_SHIFT, + RG_HDMITX21_CKLDO_EN); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3, + 0x0 << RG_HDMITX21_SLDO_EN_SHIFT, + RG_HDMITX21_SLDO_EN); + + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2, + 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD); + udelay(10); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + 0x1 << DA_HDMITXPLL_ISO_EN_SHIFT, + DA_HDMITXPLL_ISO_EN); + udelay(10); + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4, + 0x0 << DA_HDMITXPLL_PWR_ON_SHIFT, + DA_HDMITXPLL_PWR_ON); +} + +static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw); + int ret; + + dev_dbg(hdmi_phy->dev, "%s: %lu Hz, parent: %lu Hz\n", __func__, rate, + parent_rate); + + ret = mtk_hdmi_pll_calculate_params(hw, rate, parent_rate); + if (ret) + return -EINVAL; + + return 0; +} + +static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + return rate; +} + +static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return parent_rate; +} + +static const struct clk_ops mtk_hdmi_pll_ops = { + .prepare = mtk_hdmi_pll_prepare, + .unprepare = mtk_hdmi_pll_unprepare, + .set_rate = mtk_hdmi_pll_set_rate, + .round_rate = mtk_hdmi_pll_round_rate, + .recalc_rate = mtk_hdmi_pll_recalc_rate, +}; + +static void vTxSignalOnOff(struct mtk_hdmi_phy *hdmi_phy, bool OnOff) +{ + if (OnOff) + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, RG_HDMITX21_DRV_EN, + RG_HDMITX21_DRV_EN); + else + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, + 0x0 << RG_HDMITX21_DRV_EN_SHIFT, + RG_HDMITX21_DRV_EN); +} + +static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy) +{ + vTxSignalOnOff(hdmi_phy, true); + usleep_range(100, 150); +} + +static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy) +{ + vTxSignalOnOff(hdmi_phy, false); +} + +static int mtk_hdmi_phy_power_on(struct phy *phy) +{ + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy); + int ret; + + if (!__clk_is_enabled(hdmi_phy->pll)) { + ret = clk_prepare_enable(hdmi_phy->pll); + if (ret < 0) + return ret; + } + udelay(10); + mtk_hdmi_phy_enable_tmds(hdmi_phy); + + return 0; +} + +static int mtk_hdmi_phy_power_off(struct phy *phy) +{ + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy); + + mtk_hdmi_phy_disable_tmds(hdmi_phy); + udelay(10); + if (__clk_is_enabled(hdmi_phy->pll)) + clk_disable_unprepare(hdmi_phy->pll); + + return 0; +} + +static const struct phy_ops mtk_hdmi_phy_ops = { + .power_on = mtk_hdmi_phy_power_on, + .power_off = mtk_hdmi_phy_power_off, + .owner = THIS_MODULE, +}; + +static int mtk_hdmi_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_hdmi_phy *hdmi_phy; + struct resource *mem; + struct phy *phy; + struct phy_provider *phy_provider; + struct clk *ref_clk; + const char *ref_clk_name; + struct clk_init_data clk_init = { + .ops = &mtk_hdmi_pll_ops, + .num_parents = 1, + .parent_names = (const char *const *)&ref_clk_name, + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, + }; + int ret; + + hdmi_phy = devm_kzalloc(dev, sizeof(*hdmi_phy), GFP_KERNEL); + if (!hdmi_phy) + return -ENOMEM; + + ref_clk = devm_clk_get(dev, "hdmi_xtal_sel"); + if (IS_ERR(ref_clk)) { + ret = PTR_ERR(ref_clk); + dev_err(&pdev->dev, "Failed to get PLL reference clock: %d\n", + ret); + return ret; + } + ref_clk_name = __clk_get_name(ref_clk); + + ret = of_property_read_string(dev->of_node, "clock-output-names", + &clk_init.name); + if (ret < 0) + return ret; + + hdmi_phy->pll_hw.init = &clk_init; + hdmi_phy->pll = devm_clk_register(dev, &hdmi_phy->pll_hw); + if (IS_ERR(hdmi_phy->pll)) { + ret = PTR_ERR(hdmi_phy->pll); + return ret; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + hdmi_phy->regs = devm_ioremap_resource(dev, mem); + if (IS_ERR(hdmi_phy->regs)) { + ret = PTR_ERR(hdmi_phy->regs); + return ret; + } + + phy = devm_phy_create(dev, NULL, &mtk_hdmi_phy_ops); + if (IS_ERR(phy)) + return PTR_ERR(phy); + + phy_set_drvdata(phy, hdmi_phy); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + hdmi_phy->dev = dev; + + return of_clk_add_provider(dev->of_node, of_clk_src_simple_get, + hdmi_phy->pll); +} + +static int mtk_hdmi_phy_remove(struct platform_device *pdev) +{ + return 0; +} + +static const struct of_device_id mtk_hdmi_phy_match[] = { + { + .compatible = "mediatek,mt8195-hdmi-phy", + }, + {}, +}; + +struct platform_driver mtk_hdmi_phy_mt8195_driver = { + .probe = mtk_hdmi_phy_probe, + .remove = mtk_hdmi_phy_remove, + .driver = { + .name = "mediatek-hdmi-mt8195-phy", + .of_match_table = mtk_hdmi_phy_match, + }, +}; +module_platform_driver(mtk_hdmi_phy_mt8195_driver); + +MODULE_AUTHOR("Can Zeng <can.zeng@mediatek.com>"); +MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h new file mode 100644 index 000000000000..7d2c5a11e613 --- /dev/null +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h @@ -0,0 +1,179 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019 MediaTek Inc. + */ + +#ifndef _MTK_HDMI_PHY_8195_H +#define _MTK_HDMI_PHY_8195_H + +#include <linux/types.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> + +#define HDMI_ANA_CTL 0x7c +#define reg_ana_hdmi20_fifo_en (0x1 << 16) +#define reg_txc_div_SHIFT (30) +#define HDMI_CTL_3 0xcc +#define REG_HDMITX_REF_RESPLL_SEL_SHIFT (9) +#define REG_HDMITX_REF_RESPLL_SEL BIT(9) +#define reg_txc_div (0x3 << 30) +#define HDMI_1_CFG_0 0x00 +#define RG_HDMITX21_SER_EN (0xf << 28) +#define RG_HDMITX21_DRV_EN (0xf << 24) +#define RG_HDMITX21_DRV_IMP_EN (0xf << 20) +#define RG_HDMITX21_DRV_IBIAS_CLK (0x3f << 5) +#define RG_HDMITX21_SER_EN_SHIFT (28) +#define RG_HDMITX21_DRV_EN_SHIFT (24) +#define RG_HDMITX21_DRV_IMP_EN_SHIFT (20) +#define RG_HDMITX21_DRV_IBIAS_CLK_SHIFT (5) +#define HDMI_1_CFG_1 0x04 +#define RG_HDMITX21_DRV_IBIAS_D2 (0x3f << 26) +#define RG_HDMITX21_DRV_IBIAS_D1 (0x3f << 20) +#define RG_HDMITX21_DRV_IBIAS_D0 (0x3f << 14) +#define RG_HDMITX21_DRV_IBIAS_D2_SHIFT (26) +#define RG_HDMITX21_DRV_IBIAS_D1_SHIFT (20) +#define RG_HDMITX21_DRV_IBIAS_D0_SHIFT (14) +#define HDMI_1_CFG_2 0x08 +#define RG_HDMITX21_DRV_IMP_CLK_EN1 (0x3f << 26) +#define RG_HDMITX21_DRV_IMP_D2_EN1 (0x3f << 20) +#define RG_HDMITX21_DRV_IMP_D1_EN1 (0x3f << 14) +#define RG_HDMITX21_DRV_IMP_D0_EN1 (0x3f << 8) +#define RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT (26) +#define RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT (20) +#define RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT (14) +#define RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT (8) +#define HDMI_1_CFG_3 0x0c +#define RG_HDMITX21_SLDO_EN (0xf << 8) +#define RG_HDMITX21_SLDOLPF_EN (0x1 << 7) +#define RG_HDMITX21_CKLDO_EN (0x1 << 3) +#define RG_HDMITX21_SLDO_EN_SHIFT (8) +#define RG_HDMITX21_SLDOLPF_EN_SHIFT (7) +#define RG_HDMITX21_CKLDO_EN_SHIFT (3) +#define HDMI_1_CFG_6 0x18 +#define RG_HDMITX21_BIAS_EN (0x1 << 29) +#define RG_HDMITX21_TX_POSDIV_EN (0x1 << 28) +#define RG_HDMITX21_TX_POSDIV (0x3 << 26) +#define RG_HDMITX21_INTR_CAL (0x1f << 18) +#define RG_HDMITX21_FRL_D2_EN (0x1 << 16) +#define RG_HDMITX21_FRL_D1_EN (0x1 << 15) +#define RG_HDMITX21_FRL_D0_EN (0x1 << 14) +#define RG_HDMITX21_FRL_CK_EN (0x1 << 13) +#define RG_HDMITX21_FRL_EN (0x1 << 12) +#define RG_HDMITX21_CK_DRV_OP_EN (0x1 << 11) +#define RG_HDMITX21_D0_DRV_OP_EN (0x1 << 10) +#define RG_HDMITX21_D1_DRV_OP_EN (0x1 << 9) +#define RG_HDMITX21_D2_DRV_OP_EN (0x1 << 8) +#define RG_HDMITX21_BIAS_EN_SHIFT (29) +#define RG_HDMITX21_TX_POSDIV_EN_SHIFT (28) +#define RG_HDMITX21_TX_POSDIV_SHIFT (26) +#define RG_HDMITX21_INTR_CAL_SHIFT (18) +#define RG_HDMITX21_FRL_D2_EN_SHIFT (16) +#define RG_HDMITX21_FRL_D1_EN_SHIFT (15) +#define RG_HDMITX21_FRL_D0_EN_SHIFT (14) +#define RG_HDMITX21_FRL_CK_EN_SHIFT (13) +#define RG_HDMITX21_FRL_EN_SHIFT (12) +#define RG_HDMITX21_CK_DRV_OP_EN_SHIFT (11) +#define RG_HDMITX21_D0_DRV_OP_EN_SHIFT (10) +#define RG_HDMITX21_D1_DRV_OP_EN_SHIFT (9) +#define RG_HDMITX21_D2_DRV_OP_EN_SHIFT (8) +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1 (0x1f << 27) +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1 (0x1f << 22) +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1 (0x1f << 17) +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1_SHIFT (27) +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1_SHIFT (22) +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1_SHIFT (17) +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2 (0xf << 28) +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2 (0xf << 24) +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2 (0xf << 20) +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2_SHIFT (28) +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2_SHIFT (24) +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2_SHIFT (20) +#define HDMI_1_CFG_9 0x24 +#define RG_HDMITX21_SLDO_VREF_SEL (0x3 << 4) +#define RG_HDMITX21_SLDO_VREF_SEL_SHIFT (4) +#define HDMI_1_CFG_10 0x40 +#define RG_HDMITX21_BG_PWD (0x1 << 20) +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL (0x3 << 15) +#define RG_HDMITX21_BIAS_PE_VREF_SELB (0x1 << 10) +#define RG_HDMITX21_VREF_SEL (0x1 << 4) +#define RG_HDMITXPLL_REF_CK_SEL (0x3 << 1) +#define RG_HDMITX21_BG_PWD_SHIFT (20) +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT (15) +#define RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT (10) +#define RG_HDMITX21_VREF_SEL_SHIFT (4) +#define RG_HDMITXPLL_REF_CK_SEL_SHIFT (1) +#define HDMI_1_PLL_CFG_0 0x44 +#define RG_HDMITXPLL_TCL_EN (0x1 << 31) +#define RG_HDMITXPLL_BP2 (0x1 << 30) +#define RG_HDMITXPLL_LVR_SEL (0x3 << 26) +#define RG_HDMITXPLL_IBAND_FIX_EN (0x1 << 24) +#define RG_HDMITXPLL_HREN (0x3 << 12) +#define RG_HDMITXPLL_TCL_EN_SHIFT (31) +#define RG_HDMITXPLL_BP2_SHIFT (30) +#define RG_HDMITXPLL_LVR_SEL_SHIFT (26) +#define RG_HDMITXPLL_IBAND_FIX_EN_SHIFT (24) +#define RG_HDMITXPLL_HREN_SHIFT (12) +#define HDMI_1_PLL_CFG_1 0x48 +#define RG_HDMITXPLL_RESERVE (0xffff << 0) +#define RG_HDMITXPLL_RESERVE_BIT13 BIT(13) +#define RG_HDMITXPLL_RESERVE_BIT14 BIT(14) +#define RG_HDMITXPLL_RESERVE_BIT12_11 GENMASK(12, 11) +#define RG_HDMITXPLL_RESERVE_BIT3_2 GENMASK(3, 2) +#define RG_HDMITXPLL_RESERVE_BIT1_0 GENMASK(1, 0) +#define RG_HDMITXPLL_RESERVE_SHIFT (0) +#define RG_HDMITXPLL_RESERVE_BIT13_SHIFT (13) +#define RG_HDMITXPLL_RESERVE_BIT14_SHIFT (14) +#define RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT (11) +#define RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT (2) +#define RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT (0) +#define HDMI_1_PLL_CFG_2 0x4c +#define RG_HDMITXPLL_PWD (0x1 << 31) +#define RG_HDMITXPLL_HIKVCO (0x1 << 29) +#define RG_HDMITXPLL_BC (0x3 << 27) +#define RG_HDMITXPLL_IC (0x1f << 22) +#define RG_HDMITXPLL_BR (0x7 << 19) +#define RG_HDMITXPLL_IR (0x1f << 14) +#define RG_HDMITXPLL_BP (0xf << 10) +#define RG_HDMITXPLL_PWD_SHIFT (31) +#define RG_HDMITXPLL_HIKVCO_SHIFT (29) +#define RG_HDMITXPLL_BC_SHIFT (27) +#define RG_HDMITXPLL_IC_SHIFT (22) +#define RG_HDMITXPLL_BR_SHIFT (19) +#define RG_HDMITXPLL_IR_SHIFT (14) +#define RG_HDMITXPLL_BP_SHIFT (10) +#define HDMI_1_PLL_CFG_3 0x50 +#define RG_HDMITXPLL_FBKDIV_low (0xffffffff << 0) +#define RG_HDMITXPLL_FBKDIV_low_SHIFT (0) +#define HDMI_1_PLL_CFG_4 0x54 +#define RG_HDMITXPLL_FBKDIV_high (0x1 << 31) +#define RG_HDMITXPLL_PREDIV (0x3 << 28) +#define RG_HDMITXPLL_DIV_CTRL (0x3 << 24) +#define RG_HDMITXPLL_POSDIV (0x3 << 22) +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL (0x1 << 21) +#define DA_HDMITXPLL_PWR_ON (0x1 << 2) +#define DA_HDMITXPLL_ISO_EN (0x1 << 1) +#define RG_HDMITXPLL_FBKDIV_high_SHIFT (31) +#define RG_HDMITXPLL_PREDIV_SHIFT (28) +#define RG_HDMITXPLL_DIV_CTRL_SHIFT (24) +#define RG_HDMITXPLL_POSDIV_SHIFT (22) +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT (21) +#define DA_HDMITXPLL_PWR_ON_SHIFT (2) +#define DA_HDMITXPLL_ISO_EN_SHIFT (1) +#define HDMI20_CLK_CFG 0x70 +#define HDMI_1_CFG_21 0x84 +#define HDMI_1_CFG_22 0x88 +#define RG_HDMITX21_INTR_CAL_READOUT GENMASK(22, 18) +#define RG_HDMITX21_INTR_CAL_READOUT_SHIFT (18) +#define HDMI_CTL_1 0xc4 +#define RG_INTR_IMP_RG_MODE GENMASK(7, 3) +#define RG_INTR_IMP_RG_MODE_SHIFT (3) +#define REG_HDMITX_PIXEL_CLOCK BIT(23) +#define REG_PIXEL_CLOCK_SEL BIT(10) +#define REG_HDMITX_REF_XTAL_SEL BIT(7) +#define REG_HDMITXPLL_DIV GENMASK(4, 0) +#define REG_HDMITX_PIXEL_CLOCK_SHIFT (23) +#define REG_PIXEL_CLOCK_SEL_SHIFT (10) +#define REG_HDMITX_REF_XTAL_SEL_SHIFT (7) +#define REG_HDMITXPLL_DIV_SHIFT (0) + +#endif /* MTK_HDMI_PHY_8195_H */
Add basic support for the mediatek hdmi phy on MT8195 SoC Signed-off-by: Guillaume Ranquet <granquet@baylibre.com> --- drivers/phy/mediatek/Makefile | 1 + drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c | 777 +++++++++++++++++++++ drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h | 179 +++++ 3 files changed, 957 insertions(+) create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c create mode 100644 drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h