[PATCH 15/18] phy: mediatek: mipi: mt8173: use common helper to access registers

Chunfeng Yun
2022-09-20T09:46:03Z

Use MediaTek phy's common helper to access registers, then we can remove
mipi-dsi's I/O helpers.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
.../phy/mediatek/phy-mtk-mipi-dsi-mt8173.c | 117 ++++++++----------
1 file changed, 55 insertions(+), 62 deletions(-)

diff --git a/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c b/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
index 1e2ad617e8e3..673cb0f08959 100644
--- a/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
+++ b/drivers/phy/mediatek/phy-mtk-mipi-dsi-mt8173.c
@@ -4,6 +4,7 @@
* Author: jitao.shi <jitao.shi@mediatek.com>
*/

+#include "phy-mtk-io.h"
#include "phy-mtk-mipi-dsi.h"

#define MIPITX_DSI_CON 0x00
@@ -121,6 +122,7 @@
static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
{
struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);
+ void __iomem *base = mipi_tx->regs;
u8 txdiv, txdiv0, txdiv1;
u64 pcw;

@@ -150,40 +152,38 @@ static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
return -EINVAL;
}

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_BG_CON,
- RG_DSI_VOUT_MSK |
- RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN,
- FIELD_PREP(RG_DSI_V02_SEL, 4) |
- FIELD_PREP(RG_DSI_V032_SEL, 4) |
- FIELD_PREP(RG_DSI_V04_SEL, 4) |
- FIELD_PREP(RG_DSI_V072_SEL, 4) |
- FIELD_PREP(RG_DSI_V10_SEL, 4) |
- FIELD_PREP(RG_DSI_V12_SEL, 4) |
- RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);
+ mtk_phy_update_bits(base + MIPITX_DSI_BG_CON,
+ RG_DSI_VOUT_MSK | RG_DSI_BG_CKEN |
+ RG_DSI_BG_CORE_EN,
+ FIELD_PREP(RG_DSI_V02_SEL, 4) |
+ FIELD_PREP(RG_DSI_V032_SEL, 4) |
+ FIELD_PREP(RG_DSI_V04_SEL, 4) |
+ FIELD_PREP(RG_DSI_V072_SEL, 4) |
+ FIELD_PREP(RG_DSI_V10_SEL, 4) |
+ FIELD_PREP(RG_DSI_V12_SEL, 4) |
+ RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);

usleep_range(30, 100);

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_TOP_CON,
- RG_DSI_LNT_IMP_CAL_CODE | RG_DSI_LNT_HS_BIAS_EN,
- FIELD_PREP(RG_DSI_LNT_IMP_CAL_CODE, 8) |
- RG_DSI_LNT_HS_BIAS_EN);
+ mtk_phy_update_bits(base + MIPITX_DSI_TOP_CON,
+ RG_DSI_LNT_IMP_CAL_CODE | RG_DSI_LNT_HS_BIAS_EN,
+ FIELD_PREP(RG_DSI_LNT_IMP_CAL_CODE, 8) |
+ RG_DSI_LNT_HS_BIAS_EN);

- mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_CON,
- RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);
+ mtk_phy_set_bits(base + MIPITX_DSI_CON,
+ RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_PWR,
- RG_DSI_MPPLL_SDM_PWR_ON |
- RG_DSI_MPPLL_SDM_ISO_EN,
- RG_DSI_MPPLL_SDM_PWR_ON);
+ mtk_phy_update_bits(base + MIPITX_DSI_PLL_PWR,
+ RG_DSI_MPPLL_SDM_PWR_ON | RG_DSI_MPPLL_SDM_ISO_EN,
+ RG_DSI_MPPLL_SDM_PWR_ON);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
- RG_DSI_MPPLL_PLL_EN);
+ mtk_phy_clear_bits(base + MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN);

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
- RG_DSI_MPPLL_TXDIV0 | RG_DSI_MPPLL_TXDIV1 |
- RG_DSI_MPPLL_PREDIV,
- FIELD_PREP(RG_DSI_MPPLL_TXDIV0, txdiv0) |
- FIELD_PREP(RG_DSI_MPPLL_TXDIV1, txdiv1));
+ mtk_phy_update_bits(base + MIPITX_DSI_PLL_CON0,
+ RG_DSI_MPPLL_TXDIV0 | RG_DSI_MPPLL_TXDIV1 |
+ RG_DSI_MPPLL_PREDIV,
+ FIELD_PREP(RG_DSI_MPPLL_TXDIV0, txdiv0) |
+ FIELD_PREP(RG_DSI_MPPLL_TXDIV1, txdiv1));

/*
* PLL PCW config
@@ -193,23 +193,20 @@ static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
* Post DIV =4, so need data_Rate*4
* Ref_clk is 26MHz
*/
- pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24,
- 26000000);
- writel(pcw, mipi_tx->regs + MIPITX_DSI_PLL_CON2);
+ pcw = div_u64(((u64)mipi_tx->data_rate * 2 * txdiv) << 24, 26000000);
+ writel(pcw, base + MIPITX_DSI_PLL_CON2);

- mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_PLL_CON1,
- RG_DSI_MPPLL_SDM_FRA_EN);
+ mtk_phy_set_bits(base + MIPITX_DSI_PLL_CON1, RG_DSI_MPPLL_SDM_FRA_EN);

- mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN);
+ mtk_phy_set_bits(base + MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN);

usleep_range(20, 100);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON1,
- RG_DSI_MPPLL_SDM_SSC_EN);
+ mtk_phy_clear_bits(base + MIPITX_DSI_PLL_CON1, RG_DSI_MPPLL_SDM_SSC_EN);

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,
- RG_DSI_MPPLL_PRESERVE,
- mipi_tx->driver_data->mppll_preserve);
+ mtk_phy_update_field(base + MIPITX_DSI_PLL_TOP,
+ RG_DSI_MPPLL_PRESERVE,
+ mipi_tx->driver_data->mppll_preserve);

return 0;
}
@@ -217,31 +214,27 @@ static int mtk_mipi_tx_pll_prepare(struct clk_hw *hw)
static void mtk_mipi_tx_pll_unprepare(struct clk_hw *hw)
{
struct mtk_mipi_tx *mipi_tx = mtk_mipi_tx_from_clk_hw(hw);
+ void __iomem *base = mipi_tx->regs;

dev_dbg(mipi_tx->dev, "unprepare\n");

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
- RG_DSI_MPPLL_PLL_EN);
+ mtk_phy_clear_bits(base + MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_PLL_EN);

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_TOP,
- RG_DSI_MPPLL_PRESERVE, 0);
+ mtk_phy_clear_bits(base + MIPITX_DSI_PLL_TOP, RG_DSI_MPPLL_PRESERVE);

- mtk_mipi_tx_update_bits(mipi_tx, MIPITX_DSI_PLL_PWR,
- RG_DSI_MPPLL_SDM_ISO_EN |
- RG_DSI_MPPLL_SDM_PWR_ON,
- RG_DSI_MPPLL_SDM_ISO_EN);
+ mtk_phy_update_bits(base + MIPITX_DSI_PLL_PWR,
+ RG_DSI_MPPLL_SDM_ISO_EN | RG_DSI_MPPLL_SDM_PWR_ON,
+ RG_DSI_MPPLL_SDM_ISO_EN);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON,
- RG_DSI_LNT_HS_BIAS_EN);
+ mtk_phy_clear_bits(base + MIPITX_DSI_TOP_CON, RG_DSI_LNT_HS_BIAS_EN);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_CON,
- RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);
+ mtk_phy_clear_bits(base + MIPITX_DSI_CON,
+ RG_DSI_CKG_LDOOUT_EN | RG_DSI_LDOCORE_EN);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_BG_CON,
- RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);
+ mtk_phy_clear_bits(base + MIPITX_DSI_BG_CON,
+ RG_DSI_BG_CKEN | RG_DSI_BG_CORE_EN);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_PLL_CON0,
- RG_DSI_MPPLL_DIV_MSK);
+ mtk_phy_clear_bits(base + MIPITX_DSI_PLL_CON0, RG_DSI_MPPLL_DIV_MSK);
}

static long mtk_mipi_tx_pll_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -265,10 +258,10 @@ static void mtk_mipi_tx_power_on_signal(struct phy *phy)

for (reg = MIPITX_DSI_CLOCK_LANE;
reg <= MIPITX_DSI_DATA_LANE3; reg += 4)
- mtk_mipi_tx_set_bits(mipi_tx, reg, RG_DSI_LNTx_LDOOUT_EN);
+ mtk_phy_set_bits(mipi_tx->regs + reg, RG_DSI_LNTx_LDOOUT_EN);

- mtk_mipi_tx_clear_bits(mipi_tx, MIPITX_DSI_TOP_CON,
- RG_DSI_PAD_TIE_LOW_EN);
+ mtk_phy_clear_bits(mipi_tx->regs + MIPITX_DSI_TOP_CON,
+ RG_DSI_PAD_TIE_LOW_EN);
}

static void mtk_mipi_tx_power_off_signal(struct phy *phy)
@@ -276,23 +269,23 @@ static void mtk_mipi_tx_power_off_signal(struct phy *phy)
struct mtk_mipi_tx *mipi_tx = phy_get_drvdata(phy);
u32 reg;

- mtk_mipi_tx_set_bits(mipi_tx, MIPITX_DSI_TOP_CON,
- RG_DSI_PAD_TIE_LOW_EN);
+ mtk_phy_set_bits(mipi_tx->regs + MIPITX_DSI_TOP_CON,
+ RG_DSI_PAD_TIE_LOW_EN);

for (reg = MIPITX_DSI_CLOCK_LANE;
reg <= MIPITX_DSI_DATA_LANE3; reg += 4)
- mtk_mipi_tx_clear_bits(mipi_tx, reg, RG_DSI_LNTx_LDOOUT_EN);
+ mtk_phy_clear_bits(mipi_tx->regs + reg, RG_DSI_LNTx_LDOOUT_EN);
}

const struct mtk_mipitx_data mt2701_mipitx_data = {
- .mppll_preserve = (3 << 8),
+ .mppll_preserve = 3,
.mipi_tx_clk_ops = &mtk_mipi_tx_pll_ops,
.mipi_tx_enable_signal = mtk_mipi_tx_power_on_signal,
.mipi_tx_disable_signal = mtk_mipi_tx_power_off_signal,
};

const struct mtk_mipitx_data mt8173_mipitx_data = {
- .mppll_preserve = (0 << 8),
+ .mppll_preserve = 0,
.mipi_tx_clk_ops = &mtk_mipi_tx_pll_ops,
.mipi_tx_enable_signal = mtk_mipi_tx_power_on_signal,
.mipi_tx_disable_signal = mtk_mipi_tx_power_off_signal,
--
2.18.0