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path: root/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
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Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c')
-rw-r--r--drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c b/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
deleted file mode 100644
index d3cc4022e988..000000000000
--- a/drivers/gpu/drm/mediatek/mtk_mt2701_hdmi_phy.c
+++ /dev/null
@@ -1,249 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2018 MediaTek Inc.
- * Author: Chunhui Dai <chunhui.dai@mediatek.com>
- */
-
-#include "mtk_hdmi_phy.h"
-
-#define HDMI_CON0 0x00
-#define RG_HDMITX_DRV_IBIAS 0
-#define RG_HDMITX_DRV_IBIAS_MASK (0x3f << 0)
-#define RG_HDMITX_EN_SER 12
-#define RG_HDMITX_EN_SER_MASK (0x0f << 12)
-#define RG_HDMITX_EN_SLDO 16
-#define RG_HDMITX_EN_SLDO_MASK (0x0f << 16)
-#define RG_HDMITX_EN_PRED 20
-#define RG_HDMITX_EN_PRED_MASK (0x0f << 20)
-#define RG_HDMITX_EN_IMP 24
-#define RG_HDMITX_EN_IMP_MASK (0x0f << 24)
-#define RG_HDMITX_EN_DRV 28
-#define RG_HDMITX_EN_DRV_MASK (0x0f << 28)
-
-#define HDMI_CON1 0x04
-#define RG_HDMITX_PRED_IBIAS 18
-#define RG_HDMITX_PRED_IBIAS_MASK (0x0f << 18)
-#define RG_HDMITX_PRED_IMP (0x01 << 22)
-#define RG_HDMITX_DRV_IMP 26
-#define RG_HDMITX_DRV_IMP_MASK (0x3f << 26)
-
-#define HDMI_CON2 0x08
-#define RG_HDMITX_EN_TX_CKLDO (0x01 << 0)
-#define RG_HDMITX_EN_TX_POSDIV (0x01 << 1)
-#define RG_HDMITX_TX_POSDIV 3
-#define RG_HDMITX_TX_POSDIV_MASK (0x03 << 3)
-#define RG_HDMITX_EN_MBIAS (0x01 << 6)
-#define RG_HDMITX_MBIAS_LPF_EN (0x01 << 7)
-
-#define HDMI_CON4 0x10
-#define RG_HDMITX_RESERVE_MASK (0xffffffff << 0)
-
-#define HDMI_CON6 0x18
-#define RG_HTPLL_BR 0
-#define RG_HTPLL_BR_MASK (0x03 << 0)
-#define RG_HTPLL_BC 2
-#define RG_HTPLL_BC_MASK (0x03 << 2)
-#define RG_HTPLL_BP 4
-#define RG_HTPLL_BP_MASK (0x0f << 4)
-#define RG_HTPLL_IR 8
-#define RG_HTPLL_IR_MASK (0x0f << 8)
-#define RG_HTPLL_IC 12
-#define RG_HTPLL_IC_MASK (0x0f << 12)
-#define RG_HTPLL_POSDIV 16
-#define RG_HTPLL_POSDIV_MASK (0x03 << 16)
-#define RG_HTPLL_PREDIV 18
-#define RG_HTPLL_PREDIV_MASK (0x03 << 18)
-#define RG_HTPLL_FBKSEL 20
-#define RG_HTPLL_FBKSEL_MASK (0x03 << 20)
-#define RG_HTPLL_RLH_EN (0x01 << 22)
-#define RG_HTPLL_FBKDIV 24
-#define RG_HTPLL_FBKDIV_MASK (0x7f << 24)
-#define RG_HTPLL_EN (0x01 << 31)
-
-#define HDMI_CON7 0x1c
-#define RG_HTPLL_AUTOK_EN (0x01 << 23)
-#define RG_HTPLL_DIVEN 28
-#define RG_HTPLL_DIVEN_MASK (0x07 << 28)
-
-static int mtk_hdmi_pll_prepare(struct clk_hw *hw)
-{
- struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
-
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON7, RG_HTPLL_AUTOK_EN);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_RLH_EN);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_POSDIV_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_MBIAS);
- usleep_range(80, 100);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_EN);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_CKLDO);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SLDO_MASK);
- usleep_range(80, 100);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_MBIAS_LPF_EN);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SER_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_PRED_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_DRV_MASK);
- usleep_range(80, 100);
- 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_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_DRV_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_PRED_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SER_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_MBIAS_LPF_EN);
- usleep_range(80, 100);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SLDO_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_CKLDO);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_EN);
- usleep_range(80, 100);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_MBIAS);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_POSDIV_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_RLH_EN);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON7, RG_HTPLL_AUTOK_EN);
- usleep_range(80, 100);
-}
-
-static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate,
- unsigned long *parent_rate)
-{
- return rate;
-}
-
-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);
- u32 pos_div;
-
- if (rate <= 64000000)
- pos_div = 3;
- else if (rate <= 128000000)
- pos_div = 2;
- else
- pos_div = 1;
-
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_PREDIV_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_POSDIV_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_POSDIV);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (0x1 << RG_HTPLL_IC),
- RG_HTPLL_IC_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (0x1 << RG_HTPLL_IR),
- RG_HTPLL_IR_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON2, (pos_div << RG_HDMITX_TX_POSDIV),
- RG_HDMITX_TX_POSDIV_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (1 << RG_HTPLL_FBKSEL),
- RG_HTPLL_FBKSEL_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (19 << RG_HTPLL_FBKDIV),
- RG_HTPLL_FBKDIV_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON7, (0x2 << RG_HTPLL_DIVEN),
- RG_HTPLL_DIVEN_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (0xc << RG_HTPLL_BP),
- RG_HTPLL_BP_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (0x2 << RG_HTPLL_BC),
- RG_HTPLL_BC_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON6, (0x1 << RG_HTPLL_BR),
- RG_HTPLL_BR_MASK);
-
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON1, RG_HDMITX_PRED_IMP);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON1, (0x3 << RG_HDMITX_PRED_IBIAS),
- RG_HDMITX_PRED_IBIAS_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_IMP_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON1, (0x28 << RG_HDMITX_DRV_IMP),
- RG_HDMITX_DRV_IMP_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON4, 0x28, RG_HDMITX_RESERVE_MASK);
- mtk_hdmi_phy_mask(hdmi_phy, HDMI_CON0, (0xa << RG_HDMITX_DRV_IBIAS),
- RG_HDMITX_DRV_IBIAS_MASK);
- return 0;
-}
-
-static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
- unsigned long parent_rate)
-{
- struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
- unsigned long out_rate, val;
-
- val = (readl(hdmi_phy->regs + HDMI_CON6)
- & RG_HTPLL_PREDIV_MASK) >> RG_HTPLL_PREDIV;
- switch (val) {
- case 0x00:
- out_rate = parent_rate;
- break;
- case 0x01:
- out_rate = parent_rate / 2;
- break;
- default:
- out_rate = parent_rate / 4;
- break;
- }
-
- val = (readl(hdmi_phy->regs + HDMI_CON6)
- & RG_HTPLL_FBKDIV_MASK) >> RG_HTPLL_FBKDIV;
- out_rate *= (val + 1) * 2;
- val = (readl(hdmi_phy->regs + HDMI_CON2)
- & RG_HDMITX_TX_POSDIV_MASK);
- out_rate >>= (val >> RG_HDMITX_TX_POSDIV);
-
- if (readl(hdmi_phy->regs + HDMI_CON2) & RG_HDMITX_EN_TX_POSDIV)
- out_rate /= 5;
-
- return out_rate;
-}
-
-static const struct clk_ops mtk_hdmi_phy_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 mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy)
-{
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON7, RG_HTPLL_AUTOK_EN);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_RLH_EN);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_POSDIV_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_MBIAS);
- usleep_range(80, 100);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_EN);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_CKLDO);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SLDO_MASK);
- usleep_range(80, 100);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_MBIAS_LPF_EN);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SER_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_PRED_MASK);
- mtk_hdmi_phy_set_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_DRV_MASK);
- usleep_range(80, 100);
-}
-
-static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
-{
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_DRV_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_PRED_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SER_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_MBIAS_LPF_EN);
- usleep_range(80, 100);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON0, RG_HDMITX_EN_SLDO_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_TX_CKLDO);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_EN);
- usleep_range(80, 100);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON2, RG_HDMITX_EN_MBIAS);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_POSDIV_MASK);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON6, RG_HTPLL_RLH_EN);
- mtk_hdmi_phy_clear_bits(hdmi_phy, HDMI_CON7, RG_HTPLL_AUTOK_EN);
- usleep_range(80, 100);
-}
-
-struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf = {
- .tz_disabled = true,
- .flags = CLK_SET_RATE_GATE,
- .hdmi_phy_clk_ops = &mtk_hdmi_phy_pll_ops,
- .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
- .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
-};
-
-MODULE_AUTHOR("Chunhui Dai <chunhui.dai@mediatek.com>");
-MODULE_DESCRIPTION("MediaTek HDMI PHY Driver");
-MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-09 13:18:25 +0000