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spi: zynq-qspi: Keep the bitfields naming consistent
Most of the bits/bitfields #define'd in this driver are composed with: 1/ the driver prefix 2/ the name of the register they apply to Keep the naming consistent by applying this rule to the CONFIG register internals. These definitions will be used in a following change set. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20191108140744.1734-4-miquel.raynal@bootlin.com Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -60,9 +60,9 @@
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* These are the values used in the calculation of baud rate divisor and
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* These are the values used in the calculation of baud rate divisor and
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* setting the slave select.
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* setting the slave select.
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*/
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*/
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#define ZYNQ_QSPI_BAUD_DIV_MAX GENMASK(2, 0) /* Baud rate maximum */
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#define ZYNQ_QSPI_CONFIG_BAUD_DIV_MAX GENMASK(2, 0) /* Baud rate maximum */
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#define ZYNQ_QSPI_BAUD_DIV_SHIFT 3 /* Baud rate divisor shift in CR */
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#define ZYNQ_QSPI_CONFIG_BAUD_DIV_SHIFT 3 /* Baud rate divisor shift */
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#define ZYNQ_QSPI_SS_SHIFT 10 /* Slave Select field shift in CR */
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#define ZYNQ_QSPI_CONFIG_PCS 10 /* Peripheral Chip Select */
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/*
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/*
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* QSPI Interrupt Registers bit Masks
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* QSPI Interrupt Registers bit Masks
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@ -292,7 +292,7 @@ static void zynq_qspi_chipselect(struct spi_device *spi, bool assert)
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/* Select the slave */
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/* Select the slave */
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config_reg &= ~ZYNQ_QSPI_CONFIG_SSCTRL_MASK;
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config_reg &= ~ZYNQ_QSPI_CONFIG_SSCTRL_MASK;
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config_reg |= (((~(BIT(spi->chip_select))) <<
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config_reg |= (((~(BIT(spi->chip_select))) <<
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ZYNQ_QSPI_SS_SHIFT) &
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ZYNQ_QSPI_CONFIG_PCS) &
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ZYNQ_QSPI_CONFIG_SSCTRL_MASK);
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ZYNQ_QSPI_CONFIG_SSCTRL_MASK);
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} else {
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} else {
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config_reg |= ZYNQ_QSPI_CONFIG_SSCTRL_MASK;
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config_reg |= ZYNQ_QSPI_CONFIG_SSCTRL_MASK;
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@ -331,7 +331,7 @@ static int zynq_qspi_config_op(struct zynq_qspi *xqspi, struct spi_device *spi)
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* ----------------
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* ----------------
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* 111 - divide by 256
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* 111 - divide by 256
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*/
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*/
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while ((baud_rate_val < ZYNQ_QSPI_BAUD_DIV_MAX) &&
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while ((baud_rate_val < ZYNQ_QSPI_CONFIG_BAUD_DIV_MAX) &&
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(clk_get_rate(xqspi->refclk) / (2 << baud_rate_val)) >
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(clk_get_rate(xqspi->refclk) / (2 << baud_rate_val)) >
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spi->max_speed_hz)
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spi->max_speed_hz)
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baud_rate_val++;
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baud_rate_val++;
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@ -347,7 +347,7 @@ static int zynq_qspi_config_op(struct zynq_qspi *xqspi, struct spi_device *spi)
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config_reg |= ZYNQ_QSPI_CONFIG_CPOL_MASK;
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config_reg |= ZYNQ_QSPI_CONFIG_CPOL_MASK;
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config_reg &= ~ZYNQ_QSPI_CONFIG_BDRATE_MASK;
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config_reg &= ~ZYNQ_QSPI_CONFIG_BDRATE_MASK;
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config_reg |= (baud_rate_val << ZYNQ_QSPI_BAUD_DIV_SHIFT);
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config_reg |= (baud_rate_val << ZYNQ_QSPI_CONFIG_BAUD_DIV_SHIFT);
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zynq_qspi_write(xqspi, ZYNQ_QSPI_CONFIG_OFFSET, config_reg);
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zynq_qspi_write(xqspi, ZYNQ_QSPI_CONFIG_OFFSET, config_reg);
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return 0;
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return 0;
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