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/kernel/linux/linux-5.10/drivers/i2c/busses/
H A Di2c-at91-master.c66 * twi_clk = F_MAIN / (2 * (cdiv * (1 << ckdiv) + offset))
70 int ckdiv, cdiv, div, hold = 0, filter_width = 0; in at91_calc_twi_clock() local
80 ckdiv = fls(div >> 8); in at91_calc_twi_clock()
81 cdiv = div >> ckdiv; in at91_calc_twi_clock()
83 if (ckdiv > max_ckdiv) { in at91_calc_twi_clock()
84 dev_warn(dev->dev, "%d exceeds ckdiv max value which is %d.\n", in at91_calc_twi_clock()
85 ckdiv, max_ckdiv); in at91_calc_twi_clock()
86 ckdiv = max_ckdiv; in at91_calc_twi_clock()
124 dev->twi_cwgr_reg = (ckdiv << 16) | (cdiv << 8) | cdiv in at91_calc_twi_clock()
129 dev_dbg(dev->dev, "cdiv %d ckdiv in at91_calc_twi_clock()
[all...]
/kernel/linux/linux-6.6/drivers/i2c/busses/
H A Di2c-at91-master.c64 * twi_clk = F_MAIN / (2 * (cdiv * (1 << ckdiv) + offset))
68 int ckdiv, cdiv, div, hold = 0, filter_width = 0; in at91_calc_twi_clock() local
78 ckdiv = fls(div >> 8); in at91_calc_twi_clock()
79 cdiv = div >> ckdiv; in at91_calc_twi_clock()
81 if (ckdiv > max_ckdiv) { in at91_calc_twi_clock()
82 dev_warn(dev->dev, "%d exceeds ckdiv max value which is %d.\n", in at91_calc_twi_clock()
83 ckdiv, max_ckdiv); in at91_calc_twi_clock()
84 ckdiv = max_ckdiv; in at91_calc_twi_clock()
122 dev->twi_cwgr_reg = (ckdiv << 16) | (cdiv << 8) | cdiv in at91_calc_twi_clock()
127 dev_dbg(dev->dev, "cdiv %d ckdiv in at91_calc_twi_clock()
[all...]
/kernel/linux/linux-5.10/drivers/spi/
H A Dspi-uniphier.c202 u32 val, ckdiv; in uniphier_spi_set_baudrate() local
208 ckdiv = DIV_ROUND_UP(clk_get_rate(priv->clk), speed); in uniphier_spi_set_baudrate()
209 ckdiv = round_up(ckdiv, 2); in uniphier_spi_set_baudrate()
213 val |= ckdiv & SSI_CKS_CKRAT_MASK; in uniphier_spi_set_baudrate()
H A Dspi-npcm-pspi.c148 u32 ckdiv; in npcm_pspi_set_baudrate() local
152 ckdiv = DIV_ROUND_CLOSEST(clk_get_rate(priv->clk), (2 * speed)) - 1; in npcm_pspi_set_baudrate()
156 iowrite16(regtemp | (ckdiv << 9), NPCM_PSPI_CTL1 + priv->base); in npcm_pspi_set_baudrate()
/kernel/linux/linux-6.6/drivers/spi/
H A Dspi-uniphier.c202 u32 val, ckdiv; in uniphier_spi_set_baudrate() local
208 ckdiv = DIV_ROUND_UP(clk_get_rate(priv->clk), speed); in uniphier_spi_set_baudrate()
209 ckdiv = round_up(ckdiv, 2); in uniphier_spi_set_baudrate()
213 val |= ckdiv & SSI_CKS_CKRAT_MASK; in uniphier_spi_set_baudrate()
H A Dspi-npcm-pspi.c148 u32 ckdiv; in npcm_pspi_set_baudrate() local
152 ckdiv = DIV_ROUND_CLOSEST(clk_get_rate(priv->clk), (2 * speed)) - 1; in npcm_pspi_set_baudrate()
156 iowrite16(regtemp | (ckdiv << 9), NPCM_PSPI_CTL1 + priv->base); in npcm_pspi_set_baudrate()

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